[R-390] r-390 neon reference tube question

[eldim at att.net]

A Good STEADY Orange glow on the 5651 is a GO0D SIGN. Pulsating, or erratic glow can indicate time to replace tube or maybe some other problem. Sounds like a good time to close the Troubleshooting & Repair Logbook and get to listening for those awesome DX stations.
73,
Glen Galati, KA7BOJ
Tacoma, WA
eldim at att.net

-------------- Original message from <daveaust at pol.net>: -------------- 


> I just replaced the 47-ohm resistors(they were old,oxidized and reading 
> over 100+ ohms) under the 6082's and replaced the c608 coupling cap in my 
> r-390 because I was only reading 130 volts with huge hum. I now have 181 
> volts with no audible ripple that I can tell in my quick preliminary 
> testing. 
> The 5651 neon voltage reference tubes now glow pretty well but I am 
> wondering how much of a glow they should emit. I checked all resistors 
> around them and they looked to be close to spec. I assume since the B+ is 
> on target and not really humming, thing are probably OK but just 
> wondering. Thanks for any input on the power supply subject. 73, dave 
> austerman 
> 
> 
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