5C1 with recovered material - V1 question

[kagliostro]

A friend has build, with old parts, a 5C1 amp

this is the schematic



The output level is satisfying if he uses a Signal Generator at the input, but is low if he use the guitar

There is way to arrange components aroud V1 (6B8 - he has a glass version of the tube) as to increase his output to the Power Tube ?

http://frank.yueksel.org/sheets/021/6/6B8.pdf

Thanks

Franco

[sluckey]

Replace the 6B8 with a 6SJ7 and follow this schematic...

     https://el34world.com/charts/Schematics/files/Fender/Fender_champ_5c1_schem.pdf

[kagliostro]

 


OK


Franco

[uki]

What kind of pickups on the guitar? Some pickups have lower output than others, try another guitar?

[kagliostro]

Right it must be considered

Franco

[kagliostro]

Seems that also a guitar with active pickup was tried without the desired result

I think he must swap V1 for one other tube or insert a gain stage (jfet) between input and V1

Franco

[jeff]

Dumb question, but, are the batteries in active pickups dying?
Sometimes the littlest things get overlooked.

[kagliostro]

Don't know, I'll ask

Franco