Quote:
Originally Posted by DMcMahon
Voltage measurements (DVM) for comparison on my TK 27L were :-
Main HT +261V (Playback), +268V (Record) with 100Hz (10mS) ripple 4.5V p-p
HT on other side of filter resistor R17 (2.7K) = +236V, 40mV ripple.
Main HT with EL95 removed +282V
Main HT with no valves fitted +294V
David
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While checking the lack of an oscillator with my CRO, i measured the following ripple as well.
HT straight from the rectifier, 5.52v, about 100hz.
HT 120mV P-P after the filter resistor, also about 100hz
Back to chasing why no oscillator..