ZW Noise

Some folks have successfully used wooden or plastic wedges to keep the coil from vibrating in the core.

If that does not fix it and it is a type R Here: is a link to the fix. This worked for me, the buzzing was driving me crazy. Which was not a long trip for me to take.

If it is not a type R there is not much you can do other than the sticks.

That looks like a lot of work Nelson!

I'm sure mine is older than the "R" but that looks like fun to do. I'll have to use the 

old good wood, where would they go.

Tin 

I had a ZW about a year ago and the buzzing was really bad.

Took it all apart as Kent demonstrated on his help page. I read it several times to get the gist of it. Took my transformer all apart as instructed, popped the coil apart, epoxied the pieces back togather, clamped it with a large c-clamp. Waited a day or so and reassembled.

Plugged it in and WOW  did that thing quite down to just about no hum at all!

It actually looks harder then what it is!

It's not for the faint of heart though!

If you have very little experience in transformers or electricity, DON"T try this at home!

It can get a little intense but well worth the time and effort!

Hi,

   I'm pretty handy and redone a bunch of old tube power amps, so if mine not a R

will have to go a different direction.

Thanks

Tin  

I just opened mine up, it's the older type so wood it is.

Tin