Hello Cam,
Before starting any electronic repair on vintage equipment, one should
throughly inspect the shack for "Gremlims", it looks like you are the victim of
one.
If the pilot lamp comes on, then the keyer circuit has voltage and you probably
have a small problem with the foot switch / PTT.
When you power it on and smoke, fire and, fuses exploding DID NOT happen, then
you probably have the new caps installed correctly, carefully check the HV AC
voltage in (Red/Yel and Red wires) at the new diode block and on both sides of
R9, look for approx 1200 VAC. If it is there, and you have no B+ across the
capacitor bank then the diode bank is bad. If you have B+ across the caps but,
not to chassis ground then, the resistor R8 is open.
If, you have a Variac around the shack, bring it up on that and make your
voltage checks at a safe level and I am sure you will find the problem.
I am in Cincinnati, Oho which is just a little outside the boundry of
"reasonable travel distance", Good Luck.
73
de KO0M
--- On Fri, 12/26/08, walnutcreek@appstate.net <walnutcreek@appstate.net> wrote:
From: walnutcreek@appstate.net <walnutcreek@appstate.net>
Subject: Re: [Amps] Anyone around the King George, VA area
To: itz_da_police@yahoo.com
Date: Friday, December 26, 2008, 4:58 PM
HI Mel,
I replaced the HV filter caps with new 210uf 450v computer grade caps from
Harbach. I'm getting no HV to the plates and the relay circuit isn't working.
Simple as it is, it is wired correctly has a new Diode Block from Henry Amps.
I'm as puzzled as can be, the amp worked fine other than the original caps
were showing signs of leakage before the change out. I was advised to change
the diode block at the same time as the caps. I've gone over the circuit with
a fine tooth comb for finding something I did wrong and can't so I'm reaching
for help. I work at the the Dahlgren NSWC base Monday to friday and will
be off and staying at the cottage there on New Years day so am available to
travel with the amp to someplace reasonably close for help in discovering the
faults. Where are you at?
Tnx es 73,
Cam
From: Mel <itz_da_police@yahoo.com>
Sent: Friday, December 26, 2008 2:09 PM
To: walnutcreek@appstate.net, amps@contesting.com
Subject: Re: [Amps] Anyone around the King George, VA area
The Hunter "Bandit" 2000C, nice simple amp.
Hello WA4JKW,
What is your amplifier doing that it should not be doing or, what isn't your
amplifier doing that it should be doing?
Mel (ko0m)
--- On Thu, 12/25/08, walnutcreek@appstate.net <walnutcreek@appstate.net> wrote:
From: walnutcreek@appstate.net <walnutcreek@appstate.net>
Subject: [Amps] Anyone around the King George, VA area
To: amps@contesting.com
Date: Thursday, December 25, 2008, 11:05 AM
HI all,
I'm stumped and wondeer if anyone that's good at amp repair is near
King George, VA. I work at the Navy Base there and am at the cottage during the
week. I'd appreciate if someone would take a gander and give me a hand
troubleshooting an old Hunter 2000C. Simple amp with issues.
Thanks,
Cam
WA4JKW
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