Schematic for Superior E-200 Signal Generator

What is the tube line-up in the generator? FWIR there are several variations of this generator and the tube lineup is the clue.

The search for the schematic on-line, if the schematic does not have the values some "reasonable guesstimates" can be made depending on what part of the generator each section is connected to...

IMHO don't stuff, unless your into self abuse, isolate the old cap, install a tie strip and install some radial caps, done...

You can also check the cap using an AC powered bridge. This old school bridge usually tolerates considerable leakage in an old cap and still show a faint eye tube opening at balance. The two Heath-Kit models IT 11 & 28 will do that.

Both those bridges can apply a leakage test voltage that will short-time heal some of the leakage so the bridge null can be more clearly seen.

I did that this morning to a paper cap buried in tar. I now know it is 1mf.

YMMV

Chas

How did your recapping project go?

Signal generators usually don't draw very much plate current from their power supplies. Thus they don't need a lot of filtering so low value filter caps can be used (10uF to 20uF per section). Just measure the highest B+ voltage currently in your signal generator and choose a working voltage higher than that (to handle high peak voltages when you first turn it on).
73, Rod  WB6FBF

I need to recap my signal generator.  It has a four-section electrolytic filter cap that has no values marked on it.