I really get my caps charged (he-he!) about all the bantering regarding the
Millen hv connectors. I`ve been using reds&whites in both of my 4pr1000a
amps for over 25 years with no problems at 5500vdc in one amp, 6700vdc in
the other! I think a lot of problems start with poor design & workmanship as
I`ve sure seen a lot of hashed together amps some people try to build!
Something I discovered several years ago: Belden # 734710 7mm metalic spark
plug wire,availiable at NAPA auto suppliers, great for hv amp wiring.
I really can`t figure why anyone would want to run shielding on any hv
wiring.. for one thing I would never run hv cabling where the operator(me!)
could get near it when energized and who in his right mind would handle hv
cable (or any other hv) without pulling the plug& bleeding the hv?
Really folks, it tickles me reading some of the lame subject matter on this
reflector... Now don`t take me wrong... I am no expert on building amps,but
I take pride in good craftmanship and thats paid off for me over the years!
73 all around, Jim K7RDX
----- Original Message -----
From: Steve Katz <stevek@jmr.com>
To: 'Phil Clements' <philk5pc@tyler.net>; Paul Christensen
<paulc@mediaone.net>; AMPS <amps@contesting.com>
Sent: Tuesday, November 20, 2001 4:00 PM
Subject: RE: [AMPS] Millen HV Connectors Factory Pricing
>
>
>
>
>
>
>
> > I have been down that road also, Paul! I solved the problem years ago
when
> > I
> > started mounting the
> > socket to the chassis a bit differently. I drill a hole in the chassis
> > slightly
> > smaller than the width of the
> > socket. I then fashion a rectangle of 1/4" plexiglass slightly larger
> > than the
> > dimensions of the socket. A
> > hole is then drilled in the center of the plexiglass slightly larger
than
> > the
> > shaft of the socket. Then
> > 2- #6 holes are drilled through the plexiglass and chassis to match the
> > mounting
> > holes on the socket.
> > This gives C. 1/4 inch separation between the socket and chassis. I have
> > had
> > zero failures since I
> > changed the mounting scheme. Every failure previous to the change was
> > right
> > where yours was;
> > where the shaft of the socket passes through the chassis. I would never
> > dream of
> > pushing the
> > ratings above 6 kv. on the red or black units. The yellow units should
> > never be
> > used > 1 kv,
> > IMO.
> [Steve Katz] Don't know about the 1kV rating, sounds pretty skinny.
> But I've seen the blue corona (darkened room) around Millen HV sockets
only
> when improper mounting hardware was used or the socket installed with such
> mounting force (stainless machine screws torqued to within a hair of
> breaking) that the Millen socket material began cracking. When I install
> the connectors myself, I've never had a problem. Same sockets and plugs
> used on HT PSUs here since 1967-68 in many cases. Highest voltage on any
of
> them is 4400V, though. Never tried 6-7kV. Never used "tetrodes with
> handles," either!
>
> WB2WIK/6
> > (((73)))
> > Phil, K5PC
> >
> >
> >
> >
> >
> > --
> > FAQ on WWW: http://www.contesting.com/FAQ/amps
> > Submissions: amps@contesting.com
> > Administrative requests: amps-REQUEST@contesting.com
> > Problems: owner-amps@contesting.com
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/amps
> Submissions: amps@contesting.com
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> Problems: owner-amps@contesting.com
>
--
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