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PT96 - low plate voltage
#4

Try swapping out the 50L6. That's where over 70% of the B+ current is consumed under normal conditions. Also the little mica cap C17 might be bad, I'll bet that was not replaced. Also check field coil and output transformer for any partial short or arcing. You can insert an analog (old school) 250 ma DC meter to trace out how much current is being drawn on the B+ to any stage, but don't leave the set running for very long if you find you are drawing more than, lets say 90 ma. And make sure the B- is not shorted to the chassis at any point. Good luck.


Messages In This Thread
PT96 - low plate voltage - by Carl Travis - 01-23-2010, 09:39 AM
Re: PT96 - low plate voltage - by 7estatdef - 01-23-2010, 08:46 PM
Re: PT96 - low plate voltage - by Carl Travis - 01-24-2010, 09:51 AM
Re: PT96 - low plate voltage - by codefox1 - 01-24-2010, 11:13 AM
Re: PT96 - low plate voltage - by Carl Travis - 01-25-2010, 10:42 AM
Re: PT96 - low plate voltage - by 7estatdef - 01-25-2010, 12:28 PM
Re: PT96 - low plate voltage - by codefox1 - 01-25-2010, 01:26 PM
Re: PT96 - low plate voltage - by Carl Travis - 01-27-2010, 11:14 AM
Re: PT96 - low plate voltage - by 7estatdef - 01-27-2010, 05:25 PM
Re: PT96 - low plate voltage - by 7estatdef - 01-27-2010, 06:04 PM
Re: PT96 - low plate voltage - by codefox1 - 01-27-2010, 07:50 PM



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