On 2024-11-21 12:39, Tracey Gardner G5VU via groups.io wrote:

Hello Kim
Personally I would have a word with Peter at www.rfshop.co.uk.
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
----- Original Message -----
From: Kim Herron <w8zv@...>
Reply-To: <[email protected]>
To: <[email protected]>
Sent: 21/11/2024 18:06:22
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
616-677-3706

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@...
www.goldenradioservice.com [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

On 2024-11-21 18:46, 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
www.ac0c.com [1]
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.

[2]

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 [3] [2]
616-677-3706
Links:
------
[1]

[2]

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
Links:
------
[1]
[2]
[3]
[4] /g/ham-amplifiers/message/40723
[5] /mt/109709173/8135091
[6] /g/ham-amplifiers/post
[7] /g/ham-amplifiers/editsub/8135091
[8] /g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy

On 2024-11-21 18:08, mike repinski via groups.io wrote:

Also with the Millen connectors, those in the know mount them on a
piece of insulating material with a larger hole in the metal chassis
to provide better insulation. Mike
On Thursday, November 21, 2024 at 07:50:01 PM EST, Mike Sawyer via
groups.io <w3slk@...> 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.

[1]
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]

[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
Links:
------
[1]
[2] /g/ham-amplifiers/message/40721
[3] /mt/109709173/8135091
[4] /g/ham-amplifiers/post
[5] /g/ham-amplifiers/editsub/8135091
[6] /g/ham-amplifiers/leave/12941173/8135091/773995006/xyzzy

On 2024-11-21 21:30, Amp Guy Llc 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

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

From: [email protected] <[email protected]> On Behalf Of Kim Herron
Sent: Thursday, November 21, 2024 1:06 PM
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@...

616-677-3706

??

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

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@...

616-677-3706

??

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@...

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

-----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

-----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

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@...
www.goldenradioservice.com [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

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@...

616-677-3706

??

----- Original Message -----
From: Kim Herron <w8zv@...>
Reply-To: <[email protected]>
To: <[email protected]>
Sent: 21/11/2024 18:06:22
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
616-677-3706

----- Original Message -----
From: "Mike Sawyer via groups.io" <w3slk@...>
To: <[email protected]>
Sent: Saturday, November 16, 2024 12:25 PM
Subject: Re: [ham-amplifiers] Smoker contamination removal


I think Howard Mills, W3HM used 3 parts Fantastic to one part ammonia. He would wash and rinse in full sunshine to dry. Also if the 'leader' of the house doesn't want your stuff in the oven, you can use something along the lines of a styrofoam 'cooler' with a 60 watt bulb underneath the amp, or build one out of that 'blue styrofoam' insulation using shish-kabob spits to connect the joints. I would check the temperature with an IR or cooking thermometer so it doesn't get too hot.

Mod-U-Lator,
Mike(y)/W3SLK



-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Omni
Sent: Saturday, November 16, 2024 11:35 AM
To: [email protected]
Subject: Re: [ham-amplifiers] Smoker contamination removal

You need to use Zep 505, Fantastic, or Greased Lightning, which you can buy at Home Depot. They are all similar compositions and will turn nicotine into liquid that can be washed off.

I used to work for Tektronix as a Field Engineer and every service center had a spray booth where equipment could be hosed down with Zep concentrate diluted with DI water. Once the Zep had worked its magic and was still wet, the unit was sprayed again with DI water to wash out all the crud and blown dry with an air gun. Following that, the piece was put into an environmental chamber to bake out all the moisture. You can do the same thing at home. I have lost count of how many pieces of electronic gear I have cleaned the crud out of in the bathtub. Set whatever you need to clean on a towel you don't care about so the tub does not get scratched up, squirt the cleaner liberally everywhere, let it sit for a while, then flush the crud out with a shower wand, and blow it dry. If your oven is big enough you can put the piece in there on low hear (150 degrees F or so) and bake it for a few hours. If you can't fit the piece in the oven a good hair dryer set on low or medium will do the trick, but it takes longer than the over to get things dried out and then you should need to be sure things are completely dry before you apply power. The only caveat is you should remove any parts that can't get wet before the wash cycle. Most well-made power transformers are varnished and should be OK. If you are not sure pull the transformer first.



-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Technotronic Dimensions
Sent: Saturday, November 16, 2024 10:58 AM
To: [email protected]
Subject: [ham-amplifiers] Smoker contamination removal


Gonna try and detox an ACOM 1500 amp previously owned by a smoker ham, anyone ever have to remove the niccotine film before maybe with chemicals?

Contact cleaner wont take it off, alcohol on a rag seems to dissolve it, so I may try that with small toothbrushes to get into the tight spots.

I read someone once hung a smoker contaminated ham rigg from a wire in their garage and put cardboard under it, and soaked it inside and out with WD40, let it penetrate overnight and said it yielded good results. Not sure about that tho.


--
Steve Hearns [ KA2PTE ]
Technotronic Dimensions, VT [USA]
WWW.TECHNOTRONIC-DIMENSIONS.COM
E-Mail: Steve@...