Belden does make an 8 mm silicone solid wire spark plug wire.? You can buy the wire in bulk.? It's probaly the same stuff that Summit is selling.? For those that don't know, Summit and DX eng. are both owned by Tim Duffy
Kim Herron W8ZV kim.herron@... 1-616-677-3706
On Saturday, November 23, 2024 at 11:46:23 AM EST, Bob via groups.io <w4jfabob@...> wrote:
Solid spark plug wires are not resistive wires. You have a good point about being stiff. I now remember buying some bulk plug wires that were stranded, not resistive wire. I now remember making a set for a boat engine. Check this link...
Some are resistive and some are not. The more I think about it, the more I feel that they can work.
Bob W4JFA
Spark plug wire is ok so long as it is not of the ‘resistive’ type, (I’m dating myself with that!). For all my projects above 1KV, I use boiler igniter wire. This stuff is good to 20KV and has a silicon insulation. I’ve use other that was sort-of ‘double insulated’, (main insulation with an outer jacket). But that was extremely stiff and I often though if too tight a bend were made, the insulation would break! I’d hit the local auto parts jobber to see what they have available or maybe an electrical store. Also on an afterthought, some test-lead cable is also rated to 6KV. A few options for you. ? Mod-U-Lator, Mike(y)/W3SLK ? ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Bob via
Sent: Saturday, November 23, 2024 8:26 AM
To: [email protected]
Subject: Re: [ham-amplifiers] HV Wire ? Mark, I have never looked into this but what about solid spark plug wires? I know you can buy that in bulk and the quality? is all over the board. Usually?the quality of the wire itself is fine but the insulation is the variable. ?
|
I have substituted neon light hv wire ( inside a conduit? ) for a 12KV@ 3Amps? feed on a Continental FM transmitter.? It's lasted 12 years so far.
W4DNR
toggle quoted message
Show quoted text
On 2024-11-23 7:37 am, Mike Sawyer via groups.io wrote:
Spark plug wire is ok so long as it is not of the 'resistive' type, (I'm dating myself with that!). For all my projects above 1KV, I use boiler igniter wire. This stuff is good to 20KV and has a silicon insulation. I've use other that was sort-of 'double insulated', (main insulation with an outer jacket). But that was extremely stiff and I often though if too tight a bend were made, the insulation would break! I'd hit the local auto parts jobber to see what they have available or maybe an electrical store. Also on an afterthought, some test-lead cable is also rated to 6KV. A few options for you.
?
Mod-U-Lator,
Mike(y)/W3SLK
?
?
?
From: [email protected] [mailto:[email protected]] On Behalf Of Bob via groups.io
Sent: Saturday, November 23, 2024 8:26 AM
To: [email protected]
Subject: Re: [ham-amplifiers] HV Wire
?
Mark, I have never looked into this but what about solid spark plug wires? I know you can buy that in bulk and the quality?
is all over the board. Usually?the quality of the wire itself is fine but the insulation is the variable.
?
|
Solid spark plug wires are not resistive wires. You have a good point about being stiff. I now remember buying some bulk plug wires that were stranded, not resistive wire. I now remember making a set for a boat engine. Check this link...
Some are resistive and some are not. The more I think about it, the more I feel that they can work.
Bob W4JFA
Spark plug wire is ok so long as it is not of the ‘resistive’ type, (I’m dating myself with that!). For all my projects above 1KV, I use boiler igniter wire. This stuff is good to 20KV and has a silicon insulation. I’ve use other that was sort-of ‘double insulated’, (main insulation with an outer jacket). But that was extremely stiff and I often though if too tight a bend were made, the insulation would break! I’d hit the local auto parts jobber to see what they have available or maybe an electrical store. Also on an afterthought, some test-lead cable is also rated to 6KV. A few options for you. ? Mod-U-Lator, Mike(y)/W3SLK ? ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Bob via
Sent: Saturday, November 23, 2024 8:26 AM
To: [email protected]
Subject: Re: [ham-amplifiers] HV Wire ? Mark, I have never looked into this but what about solid spark plug wires? I know you can buy that in bulk and the quality? is all over the board. Usually?the quality of the wire itself is fine but the insulation is the variable. ?
|
?
? Hello Mark
?
??Have a look?at Peter's web site .
? He stocks the HRG58-20-2 cable made by the German company Hivolt.de, which is rated to 20kV.
? He will also advise on suitable connectors to go with it and can also provide ready made cable assemblies.
?
??
?
? I always like to have plenty of headroom when dealing with 5kV or over.
?
? 73s Tracey G5VU
?
?
?
?
?
toggle quoted message
Show quoted text
----- Original Message -----
From: Mark Brueggemann K5LXP via groups.io < qrq_cw@...>
Sent: 23/11/2024 13:19:57
Subject: [ham-amplifiers] HV Wire
Since we seem to have some options for proper HV connectors, what about wire?? My amp has a separate power supply and the interconnect cable it came with is not the original, and I highly suspect it's not up to safely delivering ~3kV.? I anticipated coming up with a bundle (11 conductors as I recall) plus HV and grounded shield that used some kind of silicone wire for B+ and teflon for the rest but haven't done any research on this yet.? What would be the prevailing wisdom for ~6ft of B+ cable?? Separately shielded within the bundle?? Extra isolation between wires with sheathing?? I have NO IDEA what best practice is for this configuration and no real world example to follow.
?
Mark K5LXP
Albuquerque, NM
|
Spark plug wire is ok so long as it is not of the ‘resistive’ type, (I’m dating myself with that!). For all my projects above 1KV, I use boiler igniter wire. This stuff is good to 20KV and has a silicon insulation. I’ve use other that was sort-of ‘double insulated’, (main insulation with an outer jacket). But that was extremely stiff and I often though if too tight a bend were made, the insulation would break! I’d hit the local auto parts jobber to see what they have available or maybe an electrical store. Also on an afterthought, some test-lead cable is also rated to 6KV. A few options for you. ? Mod-U-Lator, Mike(y)/W3SLK ? ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Bob via groups.io
Sent: Saturday, November 23, 2024 8:26 AM
To: [email protected]
Subject: Re: [ham-amplifiers] HV Wire ? Mark, I have never looked into this but what about solid spark plug wires? I know you can buy that in bulk and the quality? is all over the board. Usually?the quality of the wire itself is fine but the insulation is the variable. ?
|
Mark, I have never looked into this but what about solid spark plug wires? I know you can buy that in bulk and the quality? is all over the board. Usually?the quality of the wire itself is fine but the insulation is the variable. What do you think? Bob W4JFA
On Sat, Nov 23, 2024 at 8:19?AM Mark Brueggemann K5LXP via <qrq_cw= [email protected]> wrote:
Since we seem to have some options for proper HV connectors, what about wire?? My amp has a separate power supply and the interconnect cable it came with is not the original, and I highly suspect it's not up to safely delivering ~3kV.? I anticipated coming up with a bundle (11 conductors as I recall) plus HV and grounded shield that used some kind of silicone wire for B+ and teflon for the rest but haven't done any research on this yet.? What would be the prevailing wisdom for ~6ft of B+ cable?? Separately shielded within the bundle?? Extra isolation between wires with sheathing?? I have NO IDEA what best practice is for this configuration and no real world example to follow.
?
Mark K5LXP
Albuquerque, NM
|
Since we seem to have some options for proper HV connectors, what about wire?? My amp has a separate power supply and the interconnect cable it came with is not the original, and I highly suspect it's not up to safely delivering ~3kV.? I anticipated coming up with a bundle (11 conductors as I recall) plus HV and grounded shield that used some kind of silicone wire for B+ and teflon for the rest but haven't done any research on this yet.? What would be the prevailing wisdom for ~6ft of B+ cable?? Separately shielded within the bundle?? Extra isolation between wires with sheathing?? I have NO IDEA what best practice is for this configuration and no real world example to follow.
?
Mark K5LXP
Albuquerque, NM
|
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
toggle quoted message
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
|
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!
?
?
|
Bob