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Re: [Amps] which HV connector to use?

To: "RICHARD SOLOMON" <w1ksz@q.com>, "Amplifier Reflector" <amps@contesting.com>
Subject: Re: [Amps] which HV connector to use?
From: "Paul Christensen" <w9ac@arrl.net>
Date: Wed, 13 Jan 2010 00:03:37 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Or in the alternative, an SHV connector as an improved type of HV disconnect 
over the MHV for added safety.  With the SHV, the HV contact breaks path 
before the grounded shell contact path..

Paul, W9AC

----- Original Message ----- 
From: "RICHARD SOLOMON" <w1ksz@q.com>
To: "Amplifier Reflector" <amps@contesting.com>
Sent: Tuesday, January 12, 2010 11:37 PM
Subject: Re: [Amps] which HV connector to use?


>
> You can use the MHV type coax connector. Looks like a BNC on steroids.
> I used them to power an IR Image Converter that required 8 kVDC many
> moons ago.
>
> 73, Dick, W1KSZ
>
>> Date: Tue, 12 Jan 2010 20:17:40 -0800
>> From: audioguy@charter.net
>> CC: Amps@contesting.com
>> Subject: Re: [Amps] which HV connector to use?
>>
>> Assuming one doesn't insist on using the Millen connectors, what's a
>> good alternative?
>>
>> Someone mentioned RG-214 a few pages back but having been there, done
>> that and arced most of the common connectors I'm not thrilled with that
>> one either.
>>
>> Perhaps the moral is to always build integrated. (and buy bigger 
>> desks...)
>>
>> 73,
>> Jim, N7CXI
>>
>> Phil Clements wrote:
>> >
>> >
>> >> The Millen has a known history of flashing to a metal mounting at 5Kv 
>> >> once
>> >> they have absorbed sufficient moisture even in clean holes. I quit 
>> >> selling
>> >> them due to failures and complaints.
>> >>
>> >> Carl
>> >> KM1H
>> >
>> > Amen, Carl. If one insists upon using the Millen red and blacks, I 
>> > suggest
>> > my method of punching a one and 1/4 inch round hole in the chassis, 
>> > mounting
>> > a 2 X 2 X 1/2 inch piece of Plexiglas behind the hole, and installing 
>> > the
>> > connector in the center of the round hole backed up by the Plexiglas. I 
>> > have
>> > used this successfully on 6 KV supplies with no problems. I would never 
>> > use
>> > the Millen connectors without the plastic backing at voltages over 3 
>> > KV.
>> > There is a yellow Millen connector that absorbs moisture worse than the 
>> > red
>> > and black!
>> >
>> > (((73)))
>> > Phil, K5PC
>> >
>> >
>> >
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>> >
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