Hi, Military Vacuumlanders,
I'm more a denizen of RAR+P and RAT but I could use some help with a
BC-348-R "boatanchor". I acquired this eons ago but am only now
getting around to refurbushing it. It's totally original with the
dynamotor and it actually works but I'm not sure how well (I can get
some stations on a short wire antenna but there's lots of harsh hum on
the "long wave" band). BTW, I brewed up a 28 VDC bench supply from
which to run it. A long time ago I downloaded a few manuals in a
hurry but did not do a thorough check on the version - so I've got
documentation for versions J, N and Q, but not R. It seems that there
are several different schematics and tube line-ups for BC-348's. My
schematic is for a BC-348Q and it's not at all the same as for the "R"
- different tubes for a start !

By my forensics, the BC-348R has the following tube line-up:
Military tube Civilian equiv.
Function
VT-86 6K7 1st RF
VT 86 6K7 2nd RF
VT-91 6J7 Mixer
VT-65 6C5 Local Osc
VT-86 6K7 1st IF
VT-70 6F7 2nd IF & BFO osc
VT-93 6B8 3rd IF & Detector
VT-152 6K6 Audio O/P

(I hope this "table" holds together!)

Can anyone point me towards a schematic for the "R"?
All replies gratefully received
Thanks & cheers,
Roger

"Reclaim, repair, refurbish, rebuild, reuse, recycle"
Above address is a spam trap...
Any replies to: analogdino "at" rogers "dot" com