N
N Cook
- Jan 1, 1970
- 0
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
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