Hi Peter, and other gurus (a Hammond guru would possible be a Huru)
My M101 has had a hum for some time and although I replaced the large
electrolytics and the rectifier bottle (sorry tube) I still cant get rid of
it .. With a great deal of care <ouch> I have measured the output from the
cathode of the rectifier and I suspect I have a heater to cathode leakage.
Not having a clue how to check that I wondered if it was worth (or even
dangerous) to use a bridge instead of the old bottle rectifier. I know there
are surge problems with this mod but I know of several older beasts that had
this mod done. I have having difficuly getting hold of good quality valves
and the last replacement I tried in it started to spark over on power up.
Any advise would be of help.
Gren
