[Amps] which HV connector to use?

[Craig]

Hi

Alden and LEMO make some nice high voltage connectors.

I have used the Alden plug in connector  from Surplus Sales. They are $15
for a set, plug and socket. 15KV rating.
Alden are now owned by Amphenol.

I have seen Lemo HV connectors on EBAY. I have a bought a few for my new amp projects. Farnell I think sells them as well, however the prices are crazy.

www.lemo.com
Many people dont know what LEMO connectors are so nobody bids on them.

73
Craig


--- On Wed, 1/13/10, Ian White GM3SEK <gm3sek at ifwtech.co.uk> wrote:

> From: Ian White GM3SEK <gm3sek at ifwtech.co.uk>
> Subject: Re: [Amps] which HV connector to use?
> To: amps at contesting.com
> Date: Wednesday, January 13, 2010, 2:40 AM
> Paul Christensen wrote:
> >>
> >> 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
> 
> MHV are a dangerously bad design - a BNC plug can quite
> easily be mated 
> with an MHV socket.
> 
> The single-pole Millen connectors are also dangerous
> because there's 
> nothing to prevent a user from connecting only the B+, with
> no B-minus 
> or ground return. With a separate RF chassis, switching on
> will give you 
> a live chassis.
> 
> In both situations, something else usually prevents a fatal
> accident 
> (the technical term for this is "dumb luck")... but still,
> there is 
> something fundamentally wrong about any HV connector series
> that 
> actually *adds* to the risk.
> 
> 
> >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
> 
> Yes! With SHV, they finally got it right. As Paul says,
> they provide a 
> guaranteed ground return. Also, both connectors have deeply
> recessed 
> center pins, they cannot be mated with anything else and
> they use 
> standard RG58 cable.
> 
> New SHV connectors are very expensive, but they often
> appear surplus and 
> on eBay... precisely *because* they won't mate with
> anything else.
> 
> 
> 
> -- 
> 
> 73 from Ian GM3SEK
> http://www.ifwtech.co.uk/g3sek
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