IMO CR556 is surely good.
To check CR566, gently pull out the anode lead, then observe the signal directly on the collector of Q566, and note if there are differences that before.
Max
toggle quoted message
Show quoted text
Isn't this experiment sufficient to prove CR566 is shorted?
Should I still pull a lead. If so. On CR566 or CR556? And what/where do I measure? I'm confused about the post pull procedure.
stan