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Posted to sci.electronics.repair,alt.guitar.amps
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Poor speaker connection blowing an amp?
Has anyone ever come across this ?
Back emf induced by breaking the current to an inductor, in this case the speaker coil. Its a real effect but has it ever been known to blow an amp, as the induced voltage would be in the coil and not the amp, I would have thought. To demonstrate, if you're brave, connect a small 12Volt relay to a 12V source , holding your fingers over the terminals of the relay and then break the connection at the supply, you will get a belt of presumably 100Volts or more. I did it accidently once, testing a relay -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
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