I agree. It truly is. My first and main "learning" amp was my Dual Showman Reverb which was a heck easier to decipher and understand. But I'm thinking of building a champ or something similar just to learn the how's and whys of amp electronics.This is a complex amp on which to learn, imho. Cross your fingers that the OT Has not suffered damage during all of this. Yes, an OT can put sound out and be rendered useless due to certain damage.
I know my way around an amp in terms of parts and sections and what they are doing. But on component level I'm screwed.
I'll try it. Might dig up another speaker as well.Gently tighten the speaker and anything else that can vibrate. It can also be a tube issue - try substituting other tubes if you have them.
I actually have that Hammond transformer new and unpacked because it was talk about the OT being shot some year ago.Kind of a difficult and expensive OT to use the substitution method of troubleshooting on, but output transformers don't love dead shorts across the secondaries. (At least it wasn't open)
It looks like Hammond sells an OT that would work (https://www.hammfg.com/part/1650P ), more or less (4-8-16 secondaries instead of 2-4-8). Not sure if there are Swedish manufacturers of transformers that might save you a few bucks on shipping/customs.
Only thing that worries me with that is that it is specced at 60w while the amp in high power is 75w.
However I have not made serious tests on the stock OT.
Do you have any prefered methods for evaluating?