[pure-silver] Re: old Norman P400D battery pack
- From: "BOB KISS" <bobkiss@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 2 Mar 2011 08:28:40 -0400
DEAR FELLOW HAMS,
I started as WN2EYC in 1962, WB2UYM, 2 years later and for the last
17 years have been AA2CV but I am 8P6FF where I live.
I also built a linear as a 15 year old. I used a 1000V plate
transformer and a voltage doubler with some very large oil filled smoothing
capacitors. I recall my mentor, John, WB2IHB handing me a very large high
resistance, high wattage resistor telling me that using it as a bleeder from
the capacitors to ground would save my life at least once. He was right!
He also gave me a pair of radar amplifier tubes (I have them in
storage but forget the #) to use in grounded grid parallel as the final
giving me a kw. Yes their plates glowed when keyed but my favorite was
taping a neon bulb on a plastic stick and holding it 4 feet from the finals.
It glowed when I keyed the Xmitter! Impressed friends and family. Needless
to say, I kept a metal cover over THAT baby and grounded everything VERY
well.
Waaaaaaaaaaaaaaaaaaaaay off topic.
CHEERS!
BOB 8P6FF
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow
Sent: Wednesday, March 02, 2011 2:19 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Re: old Norman P400D battery pack
----- Original Message -----
From: "Grif" <kgriffit@xxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, March 01, 2011 4:12 PM
Subject: [pure-silver] Re: old Norman P400D battery pack
>
> N7IVS here,,, real radios glow in the dark, and
> hollowstate rules ;-)
>
> I've blown the end off several screwdrivers over the
> years. Seems I just can't learn to build a proper
> shorting stick with resistor. At least I've learned to
> close my eyes. I've got a pole pig waiting for the
> RoundTuit to go with a bunch of 4cx250's and all the
> other stuff. I've got access to a couple of xxx1000
> triodes, but because of my age, I think the "proper"
> looking final is a pair of 813's even if they don't allow
> the roof of the shop to glow at night.
>
> So many hobbies, so little time. All this electroylitic
> talk is just going to get in the way of the Linholf and my
> father in laws graphlex 22 tlr, but then it's almost
> fishing season, and I really really want to spend some
> time on my buddies sailboat this year. Decisions
> decisions.
>
> At 03:23 PM 3/1/2011, you wrote:
A proper looking final is a 1000TL with enough voltage
on it to make the envelope fluoresce. I knew of one rig like
this belonging to a big-time CW contester, it was built by a
friend. I have no idea of what it put into the antenna but
would guess around 3KW. The plate also glowed nicely as it
was keyed, a necessity to keep Eimac tubes gas-free.
The only pure-silver involved was the plating on the
sockets.
I know of lots of transmitter engineers who bought the
farm through carelessness, you NEVER under any circumstances
hear about this stuff if you are a civilian.
Far too OT here.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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