> Welcome home Howard. Sounds like (pardon the pun) bad filter caps in your > AC4 pwr supply. I assume they’re original, so 40 plus years old, but simple > fix.
Rick W9WS > I have just put myself on the air after a 15 year absence, I am using the > Drake TR-4 that I had in Colorado 15 years ago. It was perfect then. > However, I just worked the November SS Contest and got 3 or 4 contacts who > said > that I had a "hum". > I am not very technical (and at 74 yo not sure I will ever be!!) > Anyone have an idea what could cause the hum? > > Thanks > Howard Campbell > N0KOE > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://mailman.zerobeat.net/pipermail/drakelist/attachments/20131117/bc1d3c80/attachment-0001.html> > > ------------------------------ > > _______________________________________________ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/drakelist > > > End of Drakelist Digest, Vol 65, Issue 1 > **************************************** > _______________________________________________ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
