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tube temps

Greetings 6as7g folk - I am just posting a finding today that was quite by accident . I was building my second monoblock whilst the first was running beside me ...Oh what a joy ! . Being in a workshop environment , I had a Fluke Temp probe & display handy ...and measured each tube . They were basically around the 110 - 120 degrees C ...but I did find one tube that was 140 + deg C ....which had me wondering why ~ So on its side she went , and found that the voltage drop across the 1 ohm resistors was much higher than the other tubes ...( and that was both sections ) ..so this tube was working quite alot harder than the others . Am I correct by this , in saying , that this tube has more gain ? ...I dont have a tube tester to compare results . BTW the bias current was set around 500 ma on the ammeter . Man , I just cant wait till the second is finished (:-)
Stu


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Topic - tube temps - Satelliteman 00:43:27 08/04/06 (8)

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