First, I don't have an answer, but am preparing to recap an even older S-38
myself. I think I remember
from many, many years ago, that some of those "hot chassis" rigs had two
ground systems, that were actually connected together at some point.
Something about "ground loops" and hum
reduction. In the schematic you linked here, there are two different ground
symbols. Could one be the actual chassis connection, and the other sort of a
slightly "lifted" or signal/RF ground? Just guessing, hope someone knows the
real answer!

Old Chief Lynn, W7LTQ


"DaveW" wrote in message
...
I've begun the restoration of an S-38B. Just started to replace the
filters an I already have a question. The old multi-section cap ground is
connected to pin 2 of the 35Z5 rather than directly to the chassis ground
as shown in the schematic he
http://i1206.photobucket.com/albums/...gFilterCap.png
Pin2 is connected to the chassis ground through the filament string, which
has a 125 ohm resistance when cold. Is this a problem or were all S38's
wired in this manner?

The filter cap appears to be original but you can't always be certain.
It's clear other repairs have been made during its lifetime.

If anyone can recall recapping an S-38 I'd be interested in your
observation regarding the filter cap ground wire location.

Thanks,

DaveW