Quote:
Originally Posted by cathoderay57
Something is amiss. R52 should be dropping 95 volts so at 15k it ought to be dissipating 0.6 Watts. If a 2 Watt resistor is getting excessively hot then something is wrong. The most likely cause is if C71 is leaky. It could be a duff AC/VP2 but less likely. Check the voltages either side of R52 and work out how much current is passing through it. Are you sure that's a 15k resistor? Neither of them look like it.... Jerry
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Well, looks like I have dead valve, valve anode was dropping eventually to ~22V so at that point if my math is right resistor was dissipating more than 2W. C71 was ok but I replaced it anyway, then swapped the AC/VP2 and that immediately settled to around 110V which is what it suppose to be. Thanks for pointing me in the right direction!