Re: Need advice on HV connectors
On an amp I built long ago, I used an HN coaxial connector that I got from a surplus store. ?
Lou - KK5YO --- Sent from
|
Re: Need advice on HV connectors
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Show quoted text
-------- Original message -------- From: "Bob via groups.io" <W4JFABob@...> Date: 23/11/24 7:53 am (GMT+08:00) Subject: Re: [ham-amplifiers] Need advice on HV connectors
Alek, Thank you. How does the wire connect to the banana plug side? Solder? Bob W4JFA?
G'day Bob.
It works here on and
Try
OR
Ebay search
2X White and Red Banana
Cross High Voltage Connectors Plugs & 2X Sockets RH
73, Alek.
On 23/11/2024 6:27 am, Bob via
wrote:
Alek, Ebay says it cannot find that number,?
133455618357.
Bob W4JFA
Yep. The same dog, different leg action to the Teflon
ones I described on Ebay. You can also find them much
cheaper on Ailexpress. I've also previously bought and
used the style that Scott mentioned, from Ebay and they
are excellent. However, the ones of that style on Ebay at
present, are made of ABS plastic, so I would not go with
them.
The good ones are;
Ebay Item? 133455618357
Aliexpress Item 1005007583822381
Simply hard wire the amplifier end of the HV wire into
the amp through a clearance insulator and have the socket
mounted on the rear panel of the power supply. If the plug
gets pulled out when the HV is on, which is unlikely, as
the connectors are a very firm fit, then nobody gets hurt.
That way, you also only need one plug and one socket.
Cheers, Alek VK6APK.
On 22/11/2024 12:37 pm, Amp Guy Llc wrote:
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for
other than their original intended
purpose is an invitation for a potentially fatal
disaster in the
future.
Don't depend on haphazard grounding for HV power return,
run a
separate dark cable for the HV return in addition to
having a common
shack grounding system.
Use bright red HV cables and purpose built HV
connectors.? Millen HV
connectors have been used in Amateur radio applications
for a long
time.
[1]
73,
Dave, w6de
From: [email protected]
<[email protected]>
On Behalf Of
Kim Herron via
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI? all,
Thanks for reading the mail.? I have acquired a home
brew amp
and power supply that is missing its HV cable.? I'd like
to change
both
of them to one style since they are both different.?
Jack Schutt K9GT
originally built this.? I'd thought about using
SO-239/PL-259's that
are
Teflon with RG-8 inner conductor cable as the HV wire
and packing
the PL-259's with RTV-108 and sleeving the wire with
GOOD Belden
heavy shrink tube with sealant.? Does that sound like it
would hold
5 KV since that's what Jack built the power supply too??
Thanks
for the input and reading the mail.
Kim Herron? W8ZV
w8zv@...
[2]
616-677-3706
Links:
------
[1]
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
Alek, Thank you. How does the wire connect to the banana plug side? Solder? Bob W4JFA?
G'day Bob.
It works here on and
Try
OR
Ebay search
2X White and Red Banana
Cross High Voltage Connectors Plugs & 2X Sockets RH
73, Alek.
On 23/11/2024 6:27 am, Bob via
wrote:
Alek, Ebay says it cannot find that number,?
133455618357.
Bob W4JFA
Yep. The same dog, different leg action to the Teflon
ones I described on Ebay. You can also find them much
cheaper on Ailexpress. I've also previously bought and
used the style that Scott mentioned, from Ebay and they
are excellent. However, the ones of that style on Ebay at
present, are made of ABS plastic, so I would not go with
them.
The good ones are;
Ebay Item? 133455618357
Aliexpress Item 1005007583822381
Simply hard wire the amplifier end of the HV wire into
the amp through a clearance insulator and have the socket
mounted on the rear panel of the power supply. If the plug
gets pulled out when the HV is on, which is unlikely, as
the connectors are a very firm fit, then nobody gets hurt.
That way, you also only need one plug and one socket.
Cheers, Alek VK6APK.
On 22/11/2024 12:37 pm, Amp Guy Llc wrote:
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for
other than their original intended
purpose is an invitation for a potentially fatal
disaster in the
future.
Don't depend on haphazard grounding for HV power return,
run a
separate dark cable for the HV return in addition to
having a common
shack grounding system.
Use bright red HV cables and purpose built HV
connectors.? Millen HV
connectors have been used in Amateur radio applications
for a long
time.
[1]
73,
Dave, w6de
From: [email protected]
<[email protected]>
On Behalf Of
Kim Herron via
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI? all,
Thanks for reading the mail.? I have acquired a home
brew amp
and power supply that is missing its HV cable.? I'd like
to change
both
of them to one style since they are both different.?
Jack Schutt K9GT
originally built this.? I'd thought about using
SO-239/PL-259's that
are
Teflon with RG-8 inner conductor cable as the HV wire
and packing
the PL-259's with RTV-108 and sleeving the wire with
GOOD Belden
heavy shrink tube with sealant.? Does that sound like it
would hold
5 KV since that's what Jack built the power supply too??
Thanks
for the input and reading the mail.
Kim Herron? W8ZV
w8zv@...
[2]
616-677-3706
Links:
------
[1]
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
The ones I have here in my hand, from that Ebay seller are
Teflon, so I don't know wtf is going on there.?
Cheers, Alek.
On 23/11/2024 6:50 am, Tracey Gardner
G5VU via groups.io wrote:
toggle quoted message
Show quoted text
?
? Hello Alex
?
? Both of those products are listed by
the sellers as being made of ABS, which you say that you
wouldn't go with?
?
? Regards
?
? Tracey G5VU
?
-----
Original Message -----
Sent:
22/11/2024 22:22:19
Subject:
Re: [ham-amplifiers] Need advice on HV connectors
Yep. The same dog, different leg action to the Teflon ones
I described on Ebay. You can also find them much cheaper on
Ailexpress. I've also previously bought and used the style
that Scott mentioned, from Ebay and they are excellent.
However, the ones of that style on Ebay at present, are made
of ABS plastic, so I would not go with them.
The good ones are;
Ebay Item? 133455618357
Aliexpress
Item 1005007583822381
Simply hard wire the amplifier end of the HV wire into the
amp through a clearance insulator and have the socket
mounted on the rear panel of the power supply. If the plug
gets pulled out when the HV is on, which is unlikely, as the
connectors are a very firm fit, then nobody gets hurt. That
way, you also only need one plug and one socket.
Cheers, Alek VK6APK.
?
On 22/11/2024 12:37 pm, Amp Guy
Llc wrote:
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for
other than their original intended
purpose is an invitation for a potentially fatal disaster
in the
future.
Don't depend on haphazard grounding for HV power return,
run a
separate dark cable for the HV return in addition to
having a common
shack grounding system.
Use bright red HV cables and purpose built HV connectors.?
Millen HV
connectors have been used in Amateur radio applications
for a long
time.
[1]
73,
Dave, w6de
|
Re: Need advice on HV connectors
G'day Bob.
It works here on ebay.com and ebay.com.au
Try
OR
Ebay search
2X White and Red Banana
Cross High Voltage Connectors Plugs & 2X Sockets RH
73, Alek.
On 23/11/2024 6:27 am, Bob via
groups.io wrote:
toggle quoted message
Show quoted text
Alek, Ebay says it cannot find that number,?
133455618357.
Bob W4JFA
Yep. The same dog, different leg action to the Teflon
ones I described on Ebay. You can also find them much
cheaper on Ailexpress. I've also previously bought and
used the style that Scott mentioned, from Ebay and they
are excellent. However, the ones of that style on Ebay at
present, are made of ABS plastic, so I would not go with
them.
The good ones are;
Ebay Item? 133455618357
Aliexpress Item 1005007583822381
Simply hard wire the amplifier end of the HV wire into
the amp through a clearance insulator and have the socket
mounted on the rear panel of the power supply. If the plug
gets pulled out when the HV is on, which is unlikely, as
the connectors are a very firm fit, then nobody gets hurt.
That way, you also only need one plug and one socket.
Cheers, Alek VK6APK.
On 22/11/2024 12:37 pm, Amp Guy Llc wrote:
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for
other than their original intended
purpose is an invitation for a potentially fatal
disaster in the
future.
Don't depend on haphazard grounding for HV power return,
run a
separate dark cable for the HV return in addition to
having a common
shack grounding system.
Use bright red HV cables and purpose built HV
connectors.? Millen HV
connectors have been used in Amateur radio applications
for a long
time.
[1]
73,
Dave, w6de
From: [email protected]
<[email protected]>
On Behalf Of
Kim Herron via
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI? all,
Thanks for reading the mail.? I have acquired a home
brew amp
and power supply that is missing its HV cable.? I'd like
to change
both
of them to one style since they are both different.?
Jack Schutt K9GT
originally built this.? I'd thought about using
SO-239/PL-259's that
are
Teflon with RG-8 inner conductor cable as the HV wire
and packing
the PL-259's with RTV-108 and sleeving the wire with
GOOD Belden
heavy shrink tube with sealant.? Does that sound like it
would hold
5 KV since that's what Jack built the power supply too??
Thanks
for the input and reading the mail.
Kim Herron? W8ZV
w8zv@...
[2]
616-677-3706
Links:
------
[1]
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
No offense taken, mate. I've seen your construction abilities and am impressed - I wish I had a junkbox like yours !!
It's only your inter-personal skills that let you down occasionally - no offence intended.
Cheers,
John VK6JX
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Amp Guy Llc via groups.io Sent: Friday, 22 November 2024 9:05 PM To: [email protected]Subject: Re: [ham-amplifiers] Need advice on HV connectors Sorry I did not mean any offense Advice I add now and then seems to always be ignored. Why I seldom chime in. 73 On 2024-11-22 01:06, John Sparkes via groups.io wrote: We all do Scott - that’s why we’re on here !
|
Re: Need advice on HV connectors
I know he is. I use very similar HV connectors over here for 3kV (GS35B 2m amp) and 6kV (YC156 HF amp).
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Chuck Neal via groups.io Sent: Friday, 22 November 2024 10:35 PM To: [email protected]Subject: Re: [ham-amplifiers] Need advice on HV connectors Scott is CORRECT on the Alden HV connectors. Best ones out there. The Millen ones are junk, don't use them if you value your life! I've built MANY amps over the years and have replaced any Millen's with Aldens years ago after a very near death experience... -Chuck K1KW -----Original Message----- From: [email protected] [mailto: [email protected]] On Behalf Of Amp Guy Llc Sent: Friday, November 22, 2024 8:05 AM To: [email protected]Subject: Re: [ham-amplifiers] Need advice on HV connectors Sorry I did not mean any offense Advice I add now and then seems to always be ignored. Why I seldom chime in. 73 On 2024-11-22 01:06, John Sparkes via groups.io wrote: We all do Scott - that’s why we’re on here !
On 22 Nov 2024, at 12:30?PM, Amp Guy Llc via groups.io
<kb1sel@...> wrote:
?I’ll say it again, Google Alden had gh voltage connectors
I know a thing or two about building pa’s
73
On 2024-11-21 17:49, Mike Sawyer via groups.io wrote:
If you were to 'sing the praises' of those Millen HV connectors,
which are advertised up to 7KV, Shane, WP2ASS, might bop you on the
nose! I have used them to 2KV but I would go much above that because
they lack a lot of protection where the wire goes into the connector
itself. I have some SHV that require RG-58 or a reasonable facsimile
thereof. Recently I used
these:
le One of the companies that makes a Megger uses it to 10KV. I'm
only using it for 2KV but the bare conductor is buried deep inside
the ABS probe so that it isn't exposed. The only issue I see is that
the manufacturer doesn't state the current. It didn't bother me
since I was looking at a max of about 300mA on my modulator.
However, YMMV!
Mod-U-Lator,
Mike(y)/W3SLK
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Amp Guy Llc
Sent: Thursday, November 21, 2024 6:54 PM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors Google
Alden High Voltage connectors
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a
common shack grounding system.
Use bright red HV cables and purpose built HV connectors. Millen
HV connectors have been used in Amateur radio applications for a
long time.
3&_nkw=m
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osa
illen+High+voltage+cat=0
[1]
73,
Dave, w6de
From: [email protected] <[email protected]> On Behalf
Of Kim Herron via groups.io
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors HI all,
Thanks for reading the mail. I have acquired a home brew amp and
power supply that is missing its HV cable. I'd like to change both
of them to one style since they are both different. Jack Schutt
K9GT originally built this. I'd thought about using
SO-239/PL-259's that are Teflon with RG-8 inner conductor cable as
the HV wire and packing the PL-259's with RTV-108 and sleeving the
wire with GOOD Belden heavy shrink tube with sealant. Does that
sound like it would hold
5 KV since that's what Jack built the power supply too? Thanks for
the input and reading the mail.
Kim Herron W8ZV
w8zv@...
www.goldenradioservice.com [2]
616-677-3706
Links:
------
[1]
3&_nkw=m
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osa
illen+High+voltage+cat=0
[2] [3]
/g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006
/xyzzy
-- This email has been checked for viruses by Avast antivirus software. www.avast.com
|
Re: Need advice on HV connectors
?
? Hello Alex
?
? Both of those products are listed by the sellers as being made of ABS, which you say that you wouldn't go with?
?
? Regards
?
? Tracey G5VU
?
toggle quoted message
Show quoted text
----- Original Message -----
Sent: 22/11/2024 22:22:19
Subject: Re: [ham-amplifiers] Need advice on HV connectors
Yep. The same dog, different leg action to the Teflon ones I described on Ebay. You can also find them much cheaper on Ailexpress. I've also previously bought and used the style that Scott mentioned, from Ebay and they are excellent. However, the ones of that style on Ebay at present, are made of ABS plastic, so I would not go with them.
The good ones are;
Ebay Item? 133455618357
Aliexpress Item 1005007583822381
Simply hard wire the amplifier end of the HV wire into the amp through a clearance insulator and have the socket mounted on the rear panel of the power supply. If the plug gets pulled out when the HV is on, which is unlikely, as the connectors are a very firm fit, then nobody gets hurt. That way, you also only need one plug and one socket.
Cheers, Alek VK6APK.
?
On 22/11/2024 12:37 pm, Amp Guy Llc wrote:
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a common
shack grounding system.
Use bright red HV cables and purpose built HV connectors.? Millen HV
connectors have been used in Amateur radio applications for a long
time.
[1]
73,
Dave, w6de
|
Re: Need advice on HV connectors
Alek, Ebay says it cannot find that number,?
133455618357. Bob W4JFA
Yep. The same dog, different leg action to the Teflon ones I
described on Ebay. You can also find them much cheaper on
Ailexpress. I've also previously bought and used the style that
Scott mentioned, from Ebay and they are excellent. However, the
ones of that style on Ebay at present, are made of ABS plastic, so
I would not go with them.
The good ones are;
Ebay Item? 133455618357
Aliexpress Item
1005007583822381
Simply hard wire the amplifier end of the HV wire into the amp
through a clearance insulator and have the socket mounted on the
rear panel of the power supply. If the plug gets pulled out when
the HV is on, which is unlikely, as the connectors are a very firm
fit, then nobody gets hurt. That way, you also only need one plug
and one socket.
Cheers, Alek VK6APK.
On 22/11/2024 12:37 pm, Amp Guy Llc
wrote:
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than
their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a
common
shack grounding system.
Use bright red HV cables and purpose built HV connectors.?
Millen HV
connectors have been used in Amateur radio applications for a
long
time.
[1]
73,
Dave, w6de
From: [email protected] <[email protected]>
On Behalf Of
Kim Herron via
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI? all,
Thanks for reading the mail.? I have acquired a home brew amp
and power supply that is missing its HV cable.? I'd like to
change
both
of them to one style since they are both different.? Jack Schutt
K9GT
originally built this.? I'd thought about using SO-239/PL-259's
that
are
Teflon with RG-8 inner conductor cable as the HV wire and
packing
the PL-259's with RTV-108 and sleeving the wire with GOOD Belden
heavy shrink tube with sealant.? Does that sound like it would
hold
5 KV since that's what Jack built the power supply too?? Thanks
for the input and reading the mail.
Kim Herron? W8ZV
w8zv@...
[2]
616-677-3706
Links:
------
[1]
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
Yep. The same dog, different leg action to the Teflon ones I
described on Ebay. You can also find them much cheaper on
Ailexpress. I've also previously bought and used the style that
Scott mentioned, from Ebay and they are excellent. However, the
ones of that style on Ebay at present, are made of ABS plastic, so
I would not go with them.
The good ones are;
Ebay Item? 133455618357
Aliexpress Item
1005007583822381
Simply hard wire the amplifier end of the HV wire into the amp
through a clearance insulator and have the socket mounted on the
rear panel of the power supply. If the plug gets pulled out when
the HV is on, which is unlikely, as the connectors are a very firm
fit, then nobody gets hurt. That way, you also only need one plug
and one socket.
Cheers, Alek VK6APK.
On 22/11/2024 12:37 pm, Amp Guy Llc
wrote:
toggle quoted message
Show quoted text
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than
their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a
common
shack grounding system.
Use bright red HV cables and purpose built HV connectors.?
Millen HV
connectors have been used in Amateur radio applications for a
long
time.
[1]
73,
Dave, w6de
From: [email protected] <[email protected]>
On Behalf Of
Kim Herron via groups.io
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI? all,
Thanks for reading the mail.? I have acquired a home brew amp
and power supply that is missing its HV cable.? I'd like to
change
both
of them to one style since they are both different.? Jack Schutt
K9GT
originally built this.? I'd thought about using SO-239/PL-259's
that
are
Teflon with RG-8 inner conductor cable as the HV wire and
packing
the PL-259's with RTV-108 and sleeving the wire with GOOD Belden
heavy shrink tube with sealant.? Does that sound like it would
hold
5 KV since that's what Jack built the power supply too?? Thanks
for the input and reading the mail.
Kim Herron? W8ZV
w8zv@...
[2]
616-677-3706
Links:
------
[1]
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
Kim Herron said: “I like those Alden connectors.? That's sorta what I had in mind.? I need to find a source (sources) for them.? They look very similar to the connectors another member here posted from Amazon.” Yep, I thought that too when I saw the Aldens. I see that some of their products are manufactured in China. When I was working in the pharmaceutical industry there was a saying about companies there: “What comes in the front door, leaves by the back door!” Probably what happened. ? Mod-U-Lator, Mike(y)/W3SLK ? ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Kim Herron
Sent: Friday, November 22, 2024 10:50 AM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors ? My reply posts are taking a while to get to the list.? The moderators are delaying them, as well they should.? I'm still an unknown quantity. HV is nothing to fool with.? It usually doesn't give you a second chance.?? I like those Alden connectors.? That's sorta what I had in mind.? I need to find a source (sources) for them.? They look very similar to the connectors another member here posted from Amazon.? John Goller K9UWA suggested that I subscribe to this reflector.? He also had a very close call with a Millen HV connector that got him.? I do not want a repeat of either of those experiences.? I'm also not an amp builder, though I've worked on my share of them.? Right now, I have Kenwood TL-922 (that's a toy, I know), a Dentron DTR-2000, a Collins 30S1, and this homebrew I bought from Jacks estate.? This amp and power supply has two purposes for me.? First is to use this amp as Jack built it on 160.? The other is to use the power supply as a basis to test amp tubes.? These two pieces together are about the size of a Henry 4K.? The power supply has a 240 volt variac installed in it and he's got a 240 volt 2 pole Square D 20 amp breaker assy for an on/off switch.? No documents though.? So I'm working on the docs and the cable to get the thing back together and in one piece. The power supply for this thing is about the size of a 4K or a Collins 30S1.? I digress here a minute.? I got real lucky when I was in tech school.?? Went to RETS electronics for broadcast engineering.? We were working on color TV sets and the school had OLD RCA CTC100's with metal anode tubes (1971). They were supposed to have rubber shields on the tubes. IIRC those sets ran at 30KV and were capable of delivering a bunch of current. ? I didn't know any better and the set I was working on was missing the shield.? I leaned on that CRT with the set running, while making convergence adjustments.? I found myself in a pile at the base of the concrete wall where the set had tossed me.? The instructor thought I was dead.? I swore right then and there I wasn't working on TV.? SO, I get real anal about HV. ? Two things that RETS taught me.? One, there is never too much information.? When you ask a question, the more info you have the less likely you are to make an error or a poor decision.?? Two, there is no such thing as a dumb question, just dumb mistakes.? When you are working with HV, there is no room for error or mistakes.? That will get you DEAD!
|
Re: Need advice on HV connectors
Chuck, I was just looking at that A400. I didn't look for a price sheet yet (don't need one now). Does anyone know? how to compare the factory HV plug on the back of my Henry 2K-3 desk model to these Alden's? In other words, somewhat equivalent? Thanks, Bob W4JFA
I use the “A” series plugs and receptacles. ? A400QX is the panel mount receptacle A600QX is the plug ? The “L” after the part number is the length of the HV wire you want. ? -Chuck K!KW ? ? There are a few part numbers on the Alden connectors. Are there a few that you might recommend? On Friday, November 22, 2024 at 09:35:12 AM EST, Chuck Neal via <cdoneal@...> wrote: Scott is CORRECT on the Alden HV connectors.? Best ones out there.
The Millen ones are junk, don't use them if you value your life!
I've built MANY amps over the years and have replaced any Millen's with Aldens years ago after a very near death experience...
-Chuck K1KW
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Re: Need advice on HV connectors
My reply posts are taking a while to get to the list.? The moderators are delaying them, as well they should.? I'm still an unknown quantity.
?
HV is nothing to fool with.? It usually doesn't give you a second chance.??
?
I like those Alden connectors.? That's sorta what I had in mind.? I need to find a source (sources) for them.? They look very similar to the connectors another member here posted from Amazon.?
?
John Goller K9UWA suggested that I subscribe to this reflector.? He also had a very close call with a Millen HV connector that got him.? I do not want a repeat of either of those experiences.? I'm also not an amp builder, though I've worked on my share of them.? Right now, I have Kenwood TL-922 (that's a toy, I know), a Dentron DTR-2000, a Collins 30S1, and this homebrew I bought from Jacks estate.?
?
This amp and power supply has two purposes for me.? First is to use this amp as Jack built it on 160.? The other is to use the power supply as a basis to test amp tubes.? These two pieces together are about the size of a Henry 4K.? The power supply has a 240 volt variac installed in it
and he's got a 240 volt 2 pole Square D 20 amp breaker assy for an on/off switch.? No documents though.? So I'm working on the docs and the cable to get the thing back together and in one piece. The power supply for this thing is about the size of a 4K or a Collins 30S1.?
?
I digress here a minute.? I got real lucky when I was in tech school.?? Went to RETS electronics for broadcast engineering.? We were working on color TV sets and the school had OLD RCA CTC100's with metal anode tubes (1971). They were supposed to have rubber shields on the tubes. IIRC those sets ran at 30KV and were capable of delivering a bunch of current. ? I didn't know any better and the set I was working on was missing the shield.? I leaned on that CRT with the set running, while making convergence adjustments.? I found myself in a pile at the base of the concrete wall where the set had tossed me.? The instructor thought I was dead.? I swore right then and there I wasn't working on TV.? SO, I get real anal about HV. ?
?
Two things that RETS taught me.? One, there is never too much information.? When you ask a question, the more info you have the less likely you are to make an error or a poor decision.?? Two, there is no such thing as a dumb question, just dumb mistakes.? When you are working with HV, there is no room for error or mistakes.? That will get you DEAD!
?
?
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Re: Need advice on HV connectors
I use the “A” series plugs and receptacles. ? A400QX is the panel mount receptacle A600QX is the plug ? The “L” after the part number is the length of the HV wire you want. ? -Chuck K!KW ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of George Cortez Jr via groups.io
Sent: Friday, November 22, 2024 9:54 AM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors? There are a few part numbers on the Alden connectors. Are there a few that you might recommend? On Friday, November 22, 2024 at 09:35:12 AM EST, Chuck Neal via groups.io <cdoneal@...> wrote: Scott is CORRECT on the Alden HV connectors.? Best ones out there.
The Millen ones are junk, don't use them if you value your life!
I've built MANY amps over the years and have replaced any Millen's with Aldens years ago after a very near death experience...
-Chuck K1KW
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Re: Need advice on HV connectors
There are a few part numbers on the Alden connectors. Are there a few that you might recommend?
George NE2I
On Friday, November 22, 2024 at 09:35:12 AM EST, Chuck Neal via groups.io <cdoneal@...> wrote:
Scott is CORRECT on the Alden HV connectors.? Best ones out there. The Millen ones are junk, don't use them if you value your life! I've built MANY amps over the years and have replaced any Millen's with Aldens years ago after a very near death experience... -Chuck K1KW
|
Re: Need advice on HV connectors
Scott is CORRECT on the Alden HV connectors. Best ones out there.
The Millen ones are junk, don't use them if you value your life!
I've built MANY amps over the years and have replaced any Millen's with Aldens years ago after a very near death experience...
-Chuck K1KW
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] [mailto: [email protected]] On Behalf Of Amp Guy Llc Sent: Friday, November 22, 2024 8:05 AM To: [email protected]Subject: Re: [ham-amplifiers] Need advice on HV connectors Sorry I did not mean any offense Advice I add now and then seems to always be ignored. Why I seldom chime in. 73 On 2024-11-22 01:06, John Sparkes via groups.io wrote: We all do Scott - that’s why we’re on here !
On 22 Nov 2024, at 12:30?PM, Amp Guy Llc via groups.io
<kb1sel@...> wrote:
?I’ll say it again, Google Alden had gh voltage connectors
I know a thing or two about building pa’s
73
On 2024-11-21 17:49, Mike Sawyer via groups.io wrote:
If you were to 'sing the praises' of those Millen HV connectors,
which are advertised up to 7KV, Shane, WP2ASS, might bop you on the
nose! I have used them to 2KV but I would go much above that because
they lack a lot of protection where the wire goes into the connector
itself. I have some SHV that require RG-58 or a reasonable facsimile
thereof. Recently I used
these:
le One of the companies that makes a Megger uses it to 10KV. I'm
only using it for 2KV but the bare conductor is buried deep inside
the ABS probe so that it isn't exposed. The only issue I see is that
the manufacturer doesn't state the current. It didn't bother me
since I was looking at a max of about 300mA on my modulator.
However, YMMV!
Mod-U-Lator,
Mike(y)/W3SLK
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Amp Guy Llc
Sent: Thursday, November 21, 2024 6:54 PM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors Google
Alden High Voltage connectors
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a
common shack grounding system.
Use bright red HV cables and purpose built HV connectors. Millen
HV connectors have been used in Amateur radio applications for a
long time.
3&_nkw=m
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osa
illen+High+voltage+cat=0
[1]
73,
Dave, w6de
From: [email protected] <[email protected]> On Behalf
Of Kim Herron via groups.io
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors HI all,
Thanks for reading the mail. I have acquired a home brew amp and
power supply that is missing its HV cable. I'd like to change both
of them to one style since they are both different. Jack Schutt
K9GT originally built this. I'd thought about using
SO-239/PL-259's that are Teflon with RG-8 inner conductor cable as
the HV wire and packing the PL-259's with RTV-108 and sleeving the
wire with GOOD Belden heavy shrink tube with sealant. Does that
sound like it would hold
5 KV since that's what Jack built the power supply too? Thanks for
the input and reading the mail.
Kim Herron W8ZV
w8zv@...
www.goldenradioservice.com [2]
616-677-3706
Links:
------
[1]
3&_nkw=m
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osa
illen+High+voltage+cat=0
[2] [3]
/g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006
/xyzzy
-- This email has been checked for viruses by Avast antivirus software. www.avast.com
|
Re: Need advice on HV connectors
Sorry I did not mean any offense
Advice I add now and then seems to always be ignored.
Why I seldom chime in.
73
toggle quoted message
Show quoted text
On 2024-11-22 01:06, John Sparkes via groups.io wrote: We all do Scott - that’s why we’re on here !
On 22 Nov 2024, at 12:30?PM, Amp Guy Llc via groups.io <kb1sel@...> wrote:
?I’ll say it again, Google Alden had gh voltage connectors
I know a thing or two about building pa’s
73
On 2024-11-21 17:49, Mike Sawyer via groups.io wrote:
If you were to 'sing the praises' of those Millen HV connectors, which are
advertised up to 7KV, Shane, WP2ASS, might bop you on the nose! I have used
them to 2KV but I would go much above that because they lack a lot of
protection where the wire goes into the connector itself. I have some SHV
that require RG-58 or a reasonable facsimile thereof. Recently I used
these:
One of the companies that makes a Megger uses it to 10KV. I'm only using it
for 2KV but the bare conductor is buried deep inside the ABS probe so that
it isn't exposed. The only issue I see is that the manufacturer doesn't
state the current. It didn't bother me since I was looking at a max of about
300mA on my modulator. However, YMMV!
Mod-U-Lator,
Mike(y)/W3SLK
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Amp Guy Llc
Sent: Thursday, November 21, 2024 6:54 PM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors
Google Alden High Voltage connectors
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a common
shack grounding system.
Use bright red HV cables and purpose built HV connectors. Millen HV
connectors have been used in Amateur radio applications for a long
time.
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osacat=0
[1]
73,
Dave, w6de
From: [email protected] <[email protected]> On Behalf Of
Kim Herron via groups.io
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI all,
Thanks for reading the mail. I have acquired a home brew amp
and power supply that is missing its HV cable. I'd like to change
both
of them to one style since they are both different. Jack Schutt K9GT
originally built this. I'd thought about using SO-239/PL-259's that
are
Teflon with RG-8 inner conductor cable as the HV wire and packing
the PL-259's with RTV-108 and sleeving the wire with GOOD Belden
heavy shrink tube with sealant. Does that sound like it would hold
5 KV since that's what Jack built the power supply too? Thanks
for the input and reading the mail.
Kim Herron W8ZV
w8zv@...
www.goldenradioservice.com [2]
616-677-3706
Links:
------
[1]
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osacat=0
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
Jack originally built this amp and power supply using Millen connectors on one end.? I'm familiar with them.? I've had a couple of Drake amps and Drake used the Millen connector on them.? That connector always looked sort of iffy to me.? I go tangled up with some HV Just once.? That was more than enough for me and I'm REAL careful when it comes to this.?
?
To use the Millen on the other end, I'll have to do some rear apron work on the amp deck.? I'd almost rather use the BNC style connectors that I've seen because it carries a braid around the HV line and if it decides to short or fail, it SHOULD go to ground and dump the PS fuses.
Any thoughts about that?? I like the look of those SHV connectors.
|
Re: Need advice on HV connectors
We all do Scott - that’s why we’re on here !
toggle quoted message
Show quoted text
On 22 Nov 2024, at 12:30?PM, Amp Guy Llc via groups.io <kb1sel@...> wrote:
?I’ll say it again, Google Alden had gh voltage connectors
I know a thing or two about building pa’s
73
On 2024-11-21 17:49, Mike Sawyer via groups.io wrote:
If you were to 'sing the praises' of those Millen HV connectors, which are
advertised up to 7KV, Shane, WP2ASS, might bop you on the nose! I have used
them to 2KV but I would go much above that because they lack a lot of
protection where the wire goes into the connector itself. I have some SHV
that require RG-58 or a reasonable facsimile thereof. Recently I used
these:
One of the companies that makes a Megger uses it to 10KV. I'm only using it
for 2KV but the bare conductor is buried deep inside the ABS probe so that
it isn't exposed. The only issue I see is that the manufacturer doesn't
state the current. It didn't bother me since I was looking at a max of about
300mA on my modulator. However, YMMV!
Mod-U-Lator,
Mike(y)/W3SLK
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Amp Guy Llc
Sent: Thursday, November 21, 2024 6:54 PM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors
Google Alden High Voltage connectors
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for other than their original intended
purpose is an invitation for a potentially fatal disaster in the
future.
Don't depend on haphazard grounding for HV power return, run a
separate dark cable for the HV return in addition to having a common
shack grounding system.
Use bright red HV cables and purpose built HV connectors. Millen HV
connectors have been used in Amateur radio applications for a long
time.
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osacat=0
[1]
73,
Dave, w6de
From: [email protected] <[email protected]> On Behalf Of
Kim Herron via groups.io
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI all,
Thanks for reading the mail. I have acquired a home brew amp
and power supply that is missing its HV cable. I'd like to change
both
of them to one style since they are both different. Jack Schutt K9GT
originally built this. I'd thought about using SO-239/PL-259's that
are
Teflon with RG-8 inner conductor cable as the HV wire and packing
the PL-259's with RTV-108 and sleeving the wire with GOOD Belden
heavy shrink tube with sealant. Does that sound like it would hold
5 KV since that's what Jack built the power supply too? Thanks
for the input and reading the mail.
Kim Herron W8ZV
w8zv@...
www.goldenradioservice.com [2]
616-677-3706
Links:
------
[1]
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osacat=0
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
|
Re: Need advice on HV connectors
On 11/21/2024 6:17 PM, Alek Petkovic
via groups.io wrote:
Hi Steve.
I couldn't find the thing you described on that site. Could you
please give us an Item Number? I don't actually need one, as I
have a Biddle 15kV unit but stuff like that is always of
interest.
This exact one that I chose was (for two of them plus
Commiefornia tax)
|
Total: $43.66 |
|
Order number: xxxxxxxxx |
|
Item ID: 296767679099 |
|
Seller:
|
However, there were numerous others shown on that site as "you
might also be interested in...", some rated to 3800 volts but all
of those seemed to be coming directly from china whereas all of
the lower voltage, 3500-volt ones, were US/Canadian sellers. The
little pamphlet-manual that came with mine, however, says
"50V-3700V". "[Adjustable output current] 50uA - 5 mA". And to
avoid any possible conflict with whomever named "Alligator clips"
alligator clips, these people call their clips "crocodile clips"?
8-D I do have a minor beef with these units, however: the top
panel has two adjustments: voltage, and current. Both are little
screwdriver-adjust pots, with slots too narrow for a coin to fit
into when you're at the swap meet; you'll have to stick the tooth
of an auto key into the slot in order to adjust the pots. I've
turned mine on, but have not yet hipotted (zapped) anything.
We now return you to our regularly-scheduled programming of "What
To Use As A HV Connector??" 8-)
Steve, K0XP
With that little 3.5kV one, you would immediately be able to
determine if an unknown tube you are thinking of buying at a
hamfest was worth the risk, so I guess it's horses for courses.
I have one on my watch list for possible future purchase.
73, Alek VK6APK
On 22/11/2024 9:46 am, Steve wrote:
As a corollary topic to HV connectors... we forum denizens
recently were told about a 3500 volt Hipot tester available on
epay for only around $20 (the ones coming directly from china,
for some reason, seem rated to 3800 volts instead). 3500V
isn't quite enough for what the OP wants/needs (he wanted at
least 5 kV); but it reminded me that 3 or 4 years back, I was
building a 10+ kV Hipot tester and thought I would use a neon
sign transformer. However, those I found on epay were not only
old and relatively-decrepit-looking, the sellers also wanted
either both arms and a leg or both legs. For some reason, I
did a search on epay for "Hipot tester" and lo and behold: a
bunch of sellers were marketing 10+ kV, very-low current
adjustable power supplies in the $25-$35 range. I bought
one... it's a PC board about 4" by 1-1/2" with a switching
inductor or transformer on it and runs from 12VDC. You have to
wire a pot to the board to get the adjustable output,
completely adjustable from zero to over 12 kV DC at at least a
couple mils, far more than enough for a Hipot tester. Even has
short-circuit protection 8-)
I would strongly suggest a Hipot tester be used to confirm
the HV integrity of any cables or connectors. You can,
obviously, also use it to hipot your old tubes, vacuum
variables, and vacuum relays 8-)
Steve, K0XP
On 11/21/2024 5:24 PM, Jeff AC0C
wrote:
So239/Pl259
are questionable after 3KV.? Been there, tried that.
Don't like the Millen HV because the tip is exposed IIRC.
The SHV works well for moderate voltages but it's not super
rugged.? Looks more or less like a BNC variant on the shell.
These are harder to get these days as they seem to have fallen
out of favor for more modern safety-oriented specialty
connectors. But for ham use, they may be what you are needing.
GL!
73/jeff/ac0c
alpha-charlie-zero-charlie
On 11/21/2024 6:49 PM, Mike Sawyer via groups.io wrote:
If you were to 'sing the praises' of
those Millen HV connectors, which are
advertised up to 7KV, Shane, WP2ASS, might bop you on the
nose! I have used
them to 2KV but I would go much above that because they lack
a lot of
protection where the wire goes into the connector itself. I
have some SHV
that require RG-58 or a reasonable facsimile thereof.
Recently? I used
these:
One of the companies that makes a Megger uses it to 10KV.
I'm only using it
for 2KV but the bare conductor is buried deep inside the ABS
probe so that
it isn't exposed. The only issue I see is that the
manufacturer doesn't
state the current. It didn't bother me since I was looking
at a max of about
300mA on my modulator. However, YMMV!
Mod-U-Lator,
Mike(y)/W3SLK
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf
Of Amp Guy Llc
Sent: Thursday, November 21, 2024 6:54 PM
To: [email protected]
Subject: Re: [ham-amplifiers] Need advice on HV connectors
Google Alden High Voltage connectors
On 2024-11-21 16:16, Dave w6de wrote:
Using connectors and cables for
other than their original intended
purpose is an invitation for a potentially fatal disaster
in the
future.
Don't depend on haphazard grounding for HV power return,
run a
separate dark cable for the HV return in addition to
having a common
shack grounding system.
Use bright red HV cables and purpose built HV connectors.?
Millen HV
connectors have been used in Amateur radio applications
for a long
time.
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osacat=0
[1]
73,
Dave, w6de
From: [email protected] <[email protected]>
On Behalf Of
Kim Herron via groups.io
Sent: 21 November, 2024 18:06
To: [email protected]
Subject: [ham-amplifiers] Need advice on HV connectors
HI? all,
Thanks for reading the mail.? I have acquired a home brew
amp
and power supply that is missing its HV cable.? I'd like
to change
both
of them to one style since they are both different.? Jack
Schutt K9GT
originally built this.? I'd thought about using
SO-239/PL-259's that
are
Teflon with RG-8 inner conductor cable as the HV wire and
packing
the PL-259's with RTV-108 and sleeving the wire with GOOD
Belden
heavy shrink tube with sealant.? Does that sound like it
would hold
5 KV since that's what Jack built the power supply too??
Thanks
for the input and reading the mail.
Kim Herron? W8ZV
w8zv@...
[2]
616-677-3706
Links:
------
[1]
illen+High+voltage+connector&_sacat=0&_odkw=millen+HV+connector&_osacat=0
[2]
[3] /g/ham-amplifiers/message/40718
[4] /mt/109709173/8135091
[5] /g/ham-amplifiers/post
[6] /g/ham-amplifiers/editsub/8135091
[7]
/g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy
--
See my QRZ.com page at
--
See my QRZ.com page at
|
Bob