I recently posted a similar message to the boatanchors newagroup, but I
have had no reply, so I hope that perhaps a different readership of this
newsgroup might be able to help.

At a recent radio rally I picked up a Hallicrafters S-118 receiver. It's
a bit tatty, but I was interested since I have never owned a valve
(tube) receiver. I've located a scan of the service manual on the BAMA
website, but the schematic was unreadable. I've found a number of US
websites which sell the manual, but the cost plus postage is about the
same as the rx cost! I will go this route if nothing turns up.

If anyone can help with the schematic or information on the power supply
I would be very grateful. I have no idea what voltages the power supply
is supposed to generate, but one idea is to replace the US transformer
with a UK equivalent. The power supply appears to have a semiconductor
doubler on the output side. I am quite happy to remove this and use the
correct secondary voltage from a UK transformer. I may be possibly
offending the purists, but I am happy to replace as much of the PSU as
necessary just to get the rx going again. I do have some high voltage
transformers in my junkbox despite never having constructed any tube
equipment.

During the various searches it appears that the S-118 has a mk1 and mk2
version. If anyone could explain the difference (so that I can order the
right manual) I would be grateful

73

--Gary (M1GRY)