Enzo, in a recent thread you mentioned something about a variac instead of the a bulb.
Long ago, when in Columbus and working full time audio, we had a rig set up with a light bulb and an AC dual socket. We could plug the amp in the socket
and when the amp was turned on, the lamp would start to glow a bit. If it was drawing too much current, it would get bright.
We also had a variac and ammeter as you mentioned. As you pointed out, if the current started going high at low volumes, you knew you still had problems.
Was this what you were referring to?
If so, well, that was a long time ago and if possible, could you refresh my memory and show us how the wiring would be so I can set that rig up again until I can get a variac?
If that's NOT what you were referring to, I will try to locate my old boss and see if he has the layout.
Thanks,
Andy
If you don't have $100 for a variac, the bulb is a nice tool, but I will take a variac and ammeter every day over the bulb. Without an ammeter, the variac is only half a tool. No, it does not limit current, but I can advance the mains up to 10 or 15 volts, and if current is already ramping up, I can back off and nothing was ever stressed. The bulb way means at least the bulb current was flowing through the amp. And a 200 watt bulb on UK mains means a whole ampere was flowing through the unit under test.
and when the amp was turned on, the lamp would start to glow a bit. If it was drawing too much current, it would get bright.
We also had a variac and ammeter as you mentioned. As you pointed out, if the current started going high at low volumes, you knew you still had problems.
Was this what you were referring to?
If so, well, that was a long time ago and if possible, could you refresh my memory and show us how the wiring would be so I can set that rig up again until I can get a variac?
If that's NOT what you were referring to, I will try to locate my old boss and see if he has the layout.
Thanks,
Andy
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