[Heathkit] HW 100 audio amplifier

[email protected] [email protected]
Sat, 23 Feb 2002 09:49:42 -0800


Dick;

Your problem is too high line voltage. The voltage at the time of
manufacture was 115/117 VAC. Under separate cover I am sending you some
info on voltage reducers.

Ed Richards

On Sat, 23 Feb 2002 12:07:08 -0500 "R.J.Keller" <[email protected]> writes:
> Other than the finals, the most often replaced tube for my rig is V14
> 6GW8. It is also the hottest (temp) as well as screen resistor R316
> which I already changed to a 1W . The plate is running at max
> 300VDC(V14B)
> 
> What if I changed the screen resistor R316 to a 33K? Would gain 
> suffer
> too much?
> 
> The real root of the problem seems to me to be 124VAC at the outlet
> which results in no-load PS voltages way too high.
> B++ is 838V and B+ is 371, while FIL is 14.5VAC. Not much I can do
> though.
> 
> What do you think?
> 73, Dick KF4NS
> 
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