I've noticed that unlike other receivers I've had the R-8's BFO in
the CW mode is not offset to produce a tone but is exactly on zero
beat. Is it possible to adjust this for an offset that produces,
say, a 600 or 700 Hz tone when you are dead nuts on the signal
frequency? I don't have the service manual/schematic where I could
figure this out.

Thanks,

Frank
K3YAZ
Tucson