[Hallicrafters] SX-88 Question

[Ian Webb]

Where is it in the circuit.  Is the + end at ground?

That large value with low voltage would seem likely to me to be a cathode bypass
capacitor.  The larger value will remove more of the feedback provided by an
unbypassed or lightly bypassed cathode resistor.  It would increase the gainof
the stage and perhaps give you more bass response.

However perhaps it's elsewhere in the circuit.

I looked on the schematic at BAMA and can't seem to find C120.  I found C119 but
not 120.  It's difficult without printing it to find an individual component like
ont he screen that for me anyway.

Ian, K6SDE

GARDGORE at aol.com wrote:

> I am in the process of recapping an SX-88 and have hit a snag. The schematic
> calls for C-120 to be 10 mfd @ 150 volts and the cap in my receiver is 250
> mfd @ 50 volts. All caps are the originals and the lead dress and solder work
> is all untouched and original. Others have said Hallicrafters often made
> changes in the specifications after the manuals were printed and many times
> receivers have surfaced that didn't match the schematic. What would be the
> effect on the circuits performance with the two different values? I wonder
> what drove the change? What would you recommend for C-120?
>
> Thanks in advance,
> Greg Gore; WA1KBQ