B&K PT-3 pre-amp
Comments
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DaveMuell stopped by and dropped off a load of CDP's, a vintage Sansui 3000 receiver, and the PT-3.
I let the PT-3 burn in for days straight. After 6 days it didn't have a problem. I pulled it
out for a day, and I had gotten a longer power cord and when I put it back in the volume danced around.
The PT-3 was in the back of the rack(each shelf is 24" by "). It was now in the front.
I pulled it out, disconnected the volume encoder plug- still happened.
After a quick overall check of connectors and voltages, I pulled the front panel.
IT went nuts. AHA! It doesn't like the light! The remote sensor was shot. So I removed it and all is back
to normal for now. I don't use remotes anyway. IT's not bad for a SS preamp.
The Sansui had a blown fuse on the underside. Sansui always fused the mains. Only one of the four was bad.
I put in a close value and adjusted the + and - Bias for both channels, and all is good!.
I did drop in some bulbs, and painted the cabinet. IT's making music right now. I really had
forgotten the Sansui house sound. Not to shabby for a 1970 built receiver.
The CDP's were a lost cause. The HSU sub amp is next up.
I really enjoyed this Karma. Thank you very much for the chance to plink around with some new
hardware."The legitimate powers of government extend to such acts only as are injurious to others. But it does me no injury for my neighbour to say there are twenty gods, or no god. It neither picks my pocket nor breaks my leg." --Thomas Jefferson
