Hi Don,
Thanks for the reply. I was about to give up on any technical
discussions!
> An amplifier (TL-922) that previously would go "Bang!", and trash output
> bandswitches, short zener bias diodes, etc., no longer goes "Bang!" and
> self destructs anymore after the nichrome suppressors are fitted, but
> instead works reliably henceforth.
What exactly did you change in the amplifier, and do to the
amplifier? Are you saying the only thing you did was install new
suppressors, and all the problems went away? No other parts, no
other adjustments?
> So again, please tell me EXACTLY which (bad, defective, etc.,)
> component(s) in a functioning stock TL-922 should be replaced to prevent
> the amp from going "Bang!" and self destructing. I can show you TL-922s
> where the only defective component after the event, is the output
> bandswitch which got toasted in the big bang.
I'll try to keep it a dialog, instead of a monolog. Please tell me,
what did you do? Just add nichrome? No other changes?
Can you tell me how the bandswitch was "toasted" by the "big
bang"? I've had bandswitches fail from arcs during load faults, and
see others loose them from underloading the PA. Maybe you have
seen something different?
Give me an example please, of what you do beside add
nichrome...if anything.
73, Tom W8JI
w8ji@contesting.com
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