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Old 8th Jan 2007, 3:19 pm   #19
oldeurope
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Location: Solingen, Germany
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Default Re: making an audio output triode...

Quote:
Originally Posted by Merlin View Post
I've only just noticed you posted a typical circuit above. What is the zener diode for? Surely the ECC82 doesn't need protection from overvoltage?
It is to make sure that there isn't more than 1000V at the plate/collector.
Darius
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