Traynor Custom Reverb - Setting bias - but bias goes thru tremelo control

[1ampman]

Mr. Helmholtz, I apologize for my rude reply....and I Thankyou for being a part of this great forum...I was out of line... Also I thank all the members...

[1ampman]

Maybe someone with know how and experience will chime in...

[1ampman]

Helmholtz, I guess you never worked on one of these. Or looked at the schematic. The bias to the outputs comes out of the intensity control wiper and that's...

[1ampman]

Have a Traynor Custom Reverb from the 60s. Replacing the output tubes and trying to set the bias. Bias voltage goes thru the trem intensity control and...

[1ampman]

GOT IT! Clipped a 30uf cap across each filter cap, one at a time...The last cap stopped the whole oscillation. It has the original I C caps . So a cap job...

[1ampman]

It's a Rev B...

[1ampman]

I've grabbed the tubes when it's isolating (NO difference) , It's NEVER BEEN apart, I've sub tubes, the squeal means some type of oscillation, I'll try moving...

[1ampman]

Regular Blues Junior doesn't like the volume turned up! Even with nothing plugged in...At 8 on volume I get a squeal first then a howl. If you know the part...

[1ampman]

I have a Regular Blues Junior that howls when the volume control is turned past 8. It's Ok up to 6. It seems to be around 100 hz. This happens with nothing...

[1ampman]

Still get a 100 hz oscillation...When the volume is turned up to 8. Nothing plugged in... Did put a 120 pico across the 100k PI inverter. Suggestions?

[1ampman]

As you switch between Vintage & Burn there is a loud pop. The other switches are quiet. The amp looks like new...

[1ampman]

Thx for the replies. In the mean time I burnt out the 7915 regulator- will have a replacement this week.. The test point is speced for 23 mvdc. in the cathode...

[1ampman]

It came to me with 2 burned out 6v6s. Put in new tubes and the bias drifts bad....Bias adj pot does not help or settles the bias. Checking the grd. Head...

[1ampman]

I also have a Super Sonic 22 on the bench with ghostly problems. 1st issue is bias won't settle . 2rd the volume of the amp goes up & down for no reason.....

[1ampman]

NO luck

[1ampman]

Some thing with the voltages?

[1ampman]

Grainger has them. $2.50 ea. Got them in 2 days

[1ampman]

The problem being, it's in a tight area and the original fits in. The switch is 3 position, Hi, Lo, middle off.

[1ampman]

The original Carling switch has the batt broken off. And no part numbers are on the switch. I can't seen to locate one or the correct part numbers. Any...

[1ampman]

Lately I've been using Gorilla Super Glue. The only down side is it takes over nite to dry. Other wise I had great luck with it....

[1ampman]

You need to remove the speaker from the cab to see if is frozen. That's the only way to tell. Gently push on the cone to see if it's free to vibrate. I...