Thread: Roberts P4D
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Old 20th Sep 2021, 9:34 pm   #20
bobhowe
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Default Re: Roberts P4D

Quote:
Originally Posted by FERNSEH View Post
Hi Bob,
At 78V the anode voltage of the DAC32 is too high. A figure near 30 volts should be expected. Unless there is a negative voltage on the grid and the valve is cut-off it would be safe to say the triode has gone low emission.

DFWB.
Hi David my fault the anode voltage was measured from the DL35 not the DAC32 kind regards Bob
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Kind regards, Bob.
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