The Amp Garage

up again

procedure on this amp is to read 12v on the cathode resistor,which is 220 ohms.
then you can balance the amp at full power,checking with a scope that the clipping is symmetrical

i always proceed to clean jacks and pots first,countless times i found they were the main problem,once those are ruled out,rocking and thumping of the chassis to find any intermittency,then all the rest you listed,cheers

next time just tell him "come back in 4 months then". If he doesn't come back in time with all the money,sell it,you can't afford to lose money to serve parasites. i always make a test in front of the client, if approved by him,then he can't complain later,amps get bad even after one week,especially...

try this

i have the Unitune,equally good

you can wire the standby to the screen grid line only,that is much less stressful on the contacts,Peavey used to do that

you can play humbuckers like old style pafs,which have less output and not so mid heavy like modern ones,but you still need to adjust guitar volume and play with the amp 2 volumes,once you turn up the unplugged channel it can clean up a bit. Anyway,it's an old debate,many think that it's the volume ...

its very much like the Naylor super drive,power amp more like a classic Marshall

mosfets are the Pi,the following tube stages are boosters for the power tubes

here it is

if the controller has not enough current to drive the relay directly it is really possible to have malfunctioning.
In my experience it is always better to activate the relay via a transistor or fet,which is turned on by the controller.

I haven't measured voltages yet, but this is for anyone who needs a schematic for repairs or servicing. And the Dizzy Bird reverb unit. Thanks, Aaron looking at the Monarch schematic,if you bring down to zero the reverb pot you get zero volume,i guess there should be a resistor in line. The Vinny m...

most probably first resistor after the choke open,just check voltage on screen and PI supply,maybe a broken soldering

Use a lamp bulb in series with primary,secondaries disconnected,you can't get any conclusions with an ohm meter.