Thread: wire recording

Often times hum comes from the tubes. They can be subject to all kinds of harmonics. After the tubes it gets complicated. A bad shielded cable can do the same and a bad solder connection too. Then all the semiconductors. You would need a schematic and a multimeter to start checking.

I goofed in stating that the on/ off volume control was bad.

It is the on/off tone control. OOps

Anyway the one i bought for parts is better than the one I wanted to fix in many ways. Not as pretty but it works.

I repaired a couple of bad spots in the wire and listened to some music recorded circa 1950, Grandma thanking someone for a card, and a girl telling about how proud she was with her high school play.