Help....studio pre -amp

[priize]

Hello all....!
Im hoping someone could show me some very detailed pictures of the wiring around all the knobs......ive been working on this amp forever, and i cant seem to get it right.
thank you

 

[priize]

Also....can anyone definately tell me if both LDR2 and LDR 3 are VTL5C1 's?

 

[priize]

More replies? come on guys....someone on here has the know how to help me. Im desperate! please?

 

[priize]

Well....im finding out alot of my pots have extra large values......1 Meg when it should be 250.......this is what probably turning my eq and drive off. why 3-4 pots are bad, god know...but they are.

 

[ando]

Well....im finding out alot of my pots have extra large values......1 Meg when it should be 250.......this is what probably turning my eq and drive off. why 3-4 pots are bad, god know...but they are.

Are you saying somebody has changed some of the pots in your amp to incorrect values? That would be strange. If you have a schematic and you put the right components in there, your amp will probably be fine. Pots can go bad and not necessarily at the same time - it comes down to usage and environmental factors or liquid spills. With old amps, they've gone through a bit. They are almost always salvageable though.

Sorry I can't be of any specific help. I've never even seen a Studio Pre-amp in person.

 

[priize]

I never switched them around........i cleaned them before, but i dont know how that could effect them. When i tested them last night, i found a number of 250's reading 800.........or so......weird.......1 Meg reading almost 1.5. that would make differences,

 

[elvis]

Did you disconnect the pots from the circuit first? If not the circuit could be altering your measurement.

 

[priize]

I sure did........maybe i had the thing hooked up wrong before and shorted out them pots....its highly irregular for so many to go at once.