DIY Class A/B Amp The "Wolverine" build thread

Hi my friend
is this conversion heard? or it's just a measurement better?
It's below human hearing so it's really up to you🙂 picture is from post#2082
 

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You have a picture? You take the board off, install them (dont solder) install the board, tighten the screws on those transistors, tighten the board, then solder them in place.

I dont fully understand your question. Did you try to stuff them under the board while it was screwed down?
 
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I usually install the transistors without any insulators, then install the board, then solder the leads. This will ensure the transistors will be seated against the heatsink with insulators.
I like to use mica insulators, but the method will work with any insulator or even no insulator if that is acceptable. That depends on the transistor package.
Doing that with some of the (relatively) thicker aluminum oxide insulators would concern me. Is it okay with those also? Have you tried it? It sure would make life easier.
 
How important is it that the legs of Q103, Q107, and Q108 are bent at 90-degree angle? I had to drill my own holes and a hard time installing these and could only get them in with curved legs.
The legs should be bent in a way so that they are able to absorb the mechanical load originating from expanding and shrinking due to temperature changes. For same reason you should solder them last, when they are in there final position.