clintrubber
Well-known member
A 3Euro DMM with a transistor-socket to measure hfe did the trick here :wink:anybody got the best circuit for testing this with the minimum of components
I don't know at which current it did it, but the indication I got was well over 600 so OK enough.
Brads method is far better though, but I don't think I cut too big a corner.
It's funny btw, that both the first transistors of the '283 pre- & out-stage have this >600 recommendation.
I figure if the first transistor of the outputstage was still able to add noticable noise there'd be something else wrong :wink: