One of my amplifiers has blown up... Sob.
Quite possibly the best audio power amplifier in the world one minute, a 50V DC power supply the next... Thank the gods I have electrostatic speakers with DC blocking capacitors inside 'em or Jan would have found herself in the front garden beating off one of the cones.
Gah. I blame Bielzibabe - if it wasn't for him poking his fingers into everything I would have to put the amplifiers into a cupboard, and they wouldn't overheat.
Teach me to wind the bias current up for winter, I suppose...
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And [phew] now fixed :)
ReplyDeleteStrange failure, two SM 0R1 2W resistors gone open circuit, for no readily apparent reason - they don't even look fried.
Mechanical fatige? Bielzibabe poking at it? Who knows...