You need to get something like a Fluke with their 6KV multiplier or some
other valid HV measurement - possibly the cal adjustment resistors have
drifted or been diddled with. The manual shows where the cal resistor is
at - another possibility which I had happen to me was there was an arc or
something that blew the bias transistor and when I fixed that , the metering
was messed up. Turned out the meter movement was no longer 1 ma full scale.
Took about 1.3 ma to get to full scale. The cal resitor ranges would not
allow me to re cal - got new meter from TT and everything fell in place.
But bottom line is you need a separate way to measure the HV. BE CAREFUL -
and dont forget the HV shorting tab if you fire it up with case off.
FWIW -- Hank K7HP
----- Original Message -----
From: "Richards" <jruing@ameritech.net>
To: <k0bx@arrl.net>; "Discussion of Ten-Tec Equipment"
<tentec@contesting.com>
Sent: Thursday, December 03, 2009 2:16 PM
Subject: Re: [TenTec] Centurion 422 Amp HV - 2800 V S/B 3100???
My fairly new example indicates at least 3100 V when I
use the Ep meter reading. Does this help, or did I
not get the correct setting?
======== K8JHR =================
k0bx@arrl.net wrote:
> I have an older Centurion 422 Amp. About a 1996 build date.
> My Plate Voltage shows 2800 Volts no load.
> The manual said it should be 3100 Volts.
> > _______________________________________________
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