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You can do a lot of things with a 6BM8 :) (and a fet here)

Hey guys , im from south africa and here most of the repairs are done pretty good but you do get the odd job that half the board tracks are broken...

Cleaning the driver board did nothing. I did take a look at the preamp chassis with a chopstick and got some BVVVTTT!! action. Got it turned off...

Current changes direction (flow of electrons reverses, if you prefer) where the sinewave crosses =-line. At the peaks of the sine it only reaches its...

Getting into this discussion a bit late and I have only had a very quick reading so if Im missing anything I apologize. Peter; Are the cello going...

Your drawings make sense in that the signal alternates in direction, but your question would be clearer to me if you were relating it to a guitar...

So.. the latest is, I noticed a bit of hum on the output (100mv) and checked the hum adjust control. It was broken. One lug was shorting to the...

+1 You could almost certainly get good performance from a single tube. If it's the right one for the job, like the 6BM8. FWIW, I've had good...

Anymore I just make pickups for me, and the way I like. If someone else wants one or two, then that's a bonus. I agree on the 5 years too late....

First thing I remember fixing was our telephone as a kid. It was the old style with a bell which was hit by a hammer/lever assembly. For some...

I'd say 5 year from now would be 15 years too late but who knows what's going to happen. I keep bumping into guys on the net who just started making...

Wow. Beautifully done!

Great, thanks for that. I've had a look at the pcb, and will lift one end of C1 as you mentione to add the series resistor. I looked at...

The way it's drawn there will be a slight signal attenuation and high frequency rolloff. They should be too slight as not to be noticed. The 10K...

It's worth whatever someone will pay for it. I would guess you would get probably $5-600 in that condition to the right person.

Since drewl brought up Tektronix, I remember when I worked on one of Tek's first digitizing scopes, the 7854. The scope display would randomly go...

Handwinding + some smoke & mirrors & a touch of snake oil is it = Sales pitch There are a ton of new winders every week with the 5 year business...

They are from Schaller. The guy actually saw this thread and sent me a PM. So, if you're reading this Sir - I look forward to spreading the good...

Thank you very much for your response. I had looked at a few different schematics and noticed that the marshall V100, 8280, and a peavy amp I found...

Sometimes fresh eyes or a different perspective is needed for oddball problems. Most of the hard stuff I deal with is work related telecom stuff,...

Same here guys! So much fun cleaning up other people's messes.

There is probably something in the owners rig that is applying excessive voltage the the input. It could be leakage current from an ungrounded power...

I don't know how he can bear to part with them actually! I'd give him a leg or two for a set. But you're right Mr Tee ... a decent chunk of this is...

OK, thanks guys... spot on, Bob P... I was assuming there were some model years of some amps that would stick out and perhaps rate poorly or...

Yes, Times are Harder now! :) Just Kidding. T

Looks to me like you may want to get some from Bruce! Unless you just like exercises in Futility, like the Rest of us. :) T