[Milsurplus] R-388

[Rick]

This is my first venture into the circuitry of the R-388 and I have found a
confusing circuit hopefully someone can clear up for me. In regards the OA2
regulator (V116) the plate of the tube is connected per the  schematic to
R181, a 4000 ohm (probably 20 watt ) wire wound resistor. However, in
reality, it is connected to two 2000 ohm (or they were 2K ohm before they
over heated severely) in series. Of course, this is still in essence a 4000
ohm resistor. One of these series resistors is R181 and is listed in the
parts section of the manual and on the schematic. The second 2000 ohm series
resistor is labeled on the chassis as R185 and is NOT on the schematic or
listed in the parts section of the manual. There is a wire also not to be
found on the schematic soldered between the two series resistors. I do not
know where this wire leads yet. These are current limiting resistors and the
output supplies the 6AQ5 (V113) audio output tube with its B+. My question
is, has there been an update to the schematic issued describing these
changes? This is not a hack someone has put in the receiver as the chassis
reflects the new part numbers just as it does the original part numbers with
the exception the new numbers are a little larger type. I obviously have an
excessive current drain in that line as one of the resistors heated to the
point of melting the solder on the connections. I have audio, but not signal
whatsoever. Any help locating the addendum will be greatly appreciated.
Please, excuse my long winded description.
Rick/K5IAR