Open CLS II stators - the best way to do it?

[john65b]

Yes, C6 is jumpered. The buzz is mechanical tranny buzz, not thru the panels.

I do not have leaks...just a faint buzz that I do not think was there before I removed the diodes / cap...I may just pull that first cap and jumpr it to see if anything changes.

I really like this setup of CLS with Acoustat tranny. I want to play with that mixer resistor next...the trannies of teh Acoustat are so much more robust than the cheapy ones that were in the ML interfaces...

 

[bolserst]

Yes, C6 is jumpered. The buzz is mechanical tranny buzz, not thru the panels.

Aaah, ok I got it now. The buzz is a mechanical noise emanating from the HV transformer.
You are not hearing it in the panel acoustic output.

I can't think of any reason your changes would have caused more buzzing.
Any chance your AC wall voltage is running a little higher now that before the change?
Just 5% difference can sometimes make a surprising change in level of power transformer buzzing.

 

[geraldfryjr]

Sheeeewwww !!!!!

😱

"Just 5% difference can sometimes make a surprising change in level of power transformer buzzing."

I was experiencing this just yesterday as I was checking the voltages on some spare transformers for a supply to a new project, The line was all over the place !!! 😉

jer 🙂

 

[tyu]

Wow thanks for the info..............like others have said john.....set the bias board back stock like it was.......an just jump back from d5....to like d4-d3 point...........see if you still have buzz........i have never got any Acoustats bias treanX to buzz......an i have done just about ever thing.....i have done this setup for ML panels No buzz!