TV-37 vertical hum?

[miniman82]

There is ripple in both power supplies, it’s unavoidable with half wave rectification. Strange thing is it checks out exactly like another restoration I looked at so I didn’t think it was a problem, see the below link.

https://www.radiomuseum.org/forum/pi...l_details.html

But obviously if it’s being coupled into circuits and amplified it’s an issue, I’m just mystified how his works and mine has this problem with hum.

Timmy- it’s recapped.

[timmy]

Originally Posted by miniman82

There is ripple in both power supplies, it’s unavoidable with half wave rectification. Strange thing is it checks out exactly like another restoration I looked at so I didn’t think it was a problem, see the below link.

https://www.radiomuseum.org/forum/pi...l_details.html

But obviously if it’s being coupled into circuits and amplified it’s an issue, I’m just mystified how his works and mine has this problem with hum.

Timmy- it’s recapped.

I already figured it was recapped already but new caps can be bad as it has happened to me.