I just realized that the two 2 W resistors between B+1-B2 to B3 were wrong. They were 18 Ohm and 5,1 Ohm. Not 18k Ohm and 5,1K Ohm. There have been a lot of resoldering at those three points. Can I cut them and twist the new ones around the caps "legs" or or is it better to cut them out close to the resistor and make a small hook to attach the new one or do I need to resolder the whole eylet?
I'm a bit uncertain that i have the proper 2W values resistors at home. What's the closet value that is OK? Must it be 2W?
Measurments of the resistance is done. Plates and screens measured against closest power cap connection and all other values are measured against chassis ground. Too bad I realized the wrong value on the resistors after...
Need to measure again? And the main question is should I prioritize sleep, family, work, dog or amp?
Specs for the tubes:
Pin 1 0,5 0 17,5M O.L O.L
Pin 2 32K 49 0,6 50 50
Pin 3 814 0 4,68K 155 149
Pin 4 49 4,7M 416K 464 464
Pin 5 49 0 0,2 227K 223K
Pin 6 0,5 0,4 0,983K 227K 223K
Pin 7 0,973M/32,3K 49,5 49 49 49
Pin 8 814 0,5 49 270 270
Pin 9 49
Regarding Pin 7 on V1 the resistance changed with the S2 switch.
All values are in Ohm unless it states anything else.
Well hey that’s exactly why we do this. Glad you found that error. Do you have a solder-sucker? De-soldering device? I would want a good solid connection in there. The first resistor (B+1 to +2) really should be 2W and the second one (B+2 to +3) can be 1W.
I will do my best with the chart you provided. It’ll take me a while before I have time to decipher those preamp tubes. I should have a response by tomorrow.