I've got two R-808's. They are unique in several
ways.
They can be powered by 110VAC, 60 cps or
28VDC.
And they have an RTTY receiving converter built
in.
Look similar to the R-392 but a VERY different
receiver.
I'd rate perfromance as marginal. Overloads easily
and amazingly
drifty for what was designed for RTTY application
primarily.
Lots of back lash in the main tuning dial too.
Somewhat
modular construction. Bought a second one just to
see if
the performance of the first one was really that
bad. Verified.
Save your money, buy an R-392 which is a stellar
receiver IMO.
Steve W6SSP