Predicta Holiday - First power up attempt

[tom.j.fla]

I think that R-58(270 ohm 3 watt) cold end is connected to ground. The pot may have failed and that was a work around for as a replacement pot was not to be found. It is always great to have a factory part. If you can't find a factory part and are not too fussy about factory look put a different pot on back of chassis till you can locate the correct part. Over the years I have seen that done and have done that a few times myself. All the best,Tom.J