Airline 62-9015-A

[angelodp]

I do see a voltage rise, AC, on one side but not the other?

Caps are coming via amazon to address the Trem.

[angelodp]

Ran a resistance check on all grounds and they are good.

[angelodp]

Just hooked this up to an 8 ohm 2x12 cab and I beginning to warm up to this amp. As expected the bigger cab is allowing for more dynamics and punch.

Hope the new caps fix the tremolo issue. Not sure how to proceed with the Reverb, short of going with a one tube design. I just got a few tanks from a pal.

[angelodp]

R38 and R39 were both toast, no plate voltage, now replaced.... still no reverb.....

Should I expect roughly the same voltage on pin 6 as pin 1?

[angelodp]

Reverb awake now, but not full strength. Its there alright. I am gonna change out various caps and R's. Maybe a full refresh is in order. Its starting to sound like an amp with some merit.

Need to order some caps, stash is low.

[angelodp]

Working on the Trem. I lowered the 1M to 470k R41, R44 was toast so put a new 330K, but still have no voltage at the screen grid g2? I do have voltage on the other side of the 330k but it is being dropped
completely on the other side? Does this appear to be an on all the time setup at the footswitch? I have plate voltage about 240v. Will channel A or B work for Reverb and Tremolo? I also increased the Plate resistor to 220k. I am following a thread on Hoffman physconoodler, got his going with some of these prescriptions.

[sluckey]

Most likely suspect is C23 shorted.

[angelodp]

Had already replaced that non-polarized wax cap with a .68uf as I did not have a .5 on hand... might that create any problems.

I get no voltage on pin 6 where it says 90v avg. I have changed out almost all the cpas now and checked the R's?? Not able to jump start this LFO? Any suggestions.

[sluckey]

Measure resistance between pin 6 and chassis. What have you?

[angelodp]

20 ohms - I think I have some mis-wiring by previous owner on the two Tremolo pots, sorting out now.