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Old 15th Jan 2018, 12:03 pm   #19
dave cox
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Join Date: Jan 2009
Location: Bristol, UK.
Posts: 2,059
Default Re: Another DC coupled amp

A 16V zener could not stand 39V applied through 0R33!
It must be open, then the cap would fail under excessive voltage - probably

The fact you powered up through an external 15-0-15 gives some hope!

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