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Vintage threads from the first ten years
| previous: R.G. Re: Power on, standby off: hummmmmmm ??? -- 7/28/2000 1:09 PM |  |
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Magnetic coupling!!
 7/29/2000 6:18 PM |
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Carlos | Magnetic coupling!! Thanks folks! It was magnetic coupling. I disconnected the secondary side of the PT and moved it about 2.5 inches away from the OT and the hum was gone. I moved it back to original position and the hum was back again. Since the PT is already at the edge of the chassis, I've got to move the OT. Now I understand why Marshall tops are so wide ... to get maximum distance between OT and PT. But how do they reduce magnetic coupling in small tube heads? Thanks Carlos |
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| Ray Ivers Carlos, |