[Milsurplus] Unknown receiver

[Bruce Gentry]

These receivers are  good performers. Circuit wise, it  resembles a 
BC-348 and performs every bit as well. It has two RF amplifiers and 
three IFs, so the signal from the detector is quite strong, about 20 
volts peak to peak on a reasonable signal. The 6Y6 audio output tube is 
quite hefty and will drive a speaker with ease. The top chassis had the 
crystal calibrator because the receiver was used to spot the transmitter 
frequency. When restoring it, beware of the Micamold condensors used for 
bypass and coupling, they look like micas but are actually paper and 
usually bad. All the resistors in  mine were fine except the one feeding 
the third IF screen because the bypass condensor had shorted out and 
toasted it. If you find a 24/28 volt dynamotor for it that you don't 
want, I'm interested. The 12/14 volt one is fairly easy to find. Have 
fun, it's a neat and solid receiver.

      Bruce Gentry, KA2IVY




On 4/17/17 7:08 PM, Glenn Little WB4UIV wrote:
> At the Raleigh hamfest I bought an unknown receiver.
> It covers 2-6 Mcs in two bands.
> It is very heavy, suggesting frame is steel.
> It is an eight tube superhet.
> The tubes are 12A6, 12K8 (2), VT131/12SK7 (2), VT209, 12SR7 and 12C8.
> All of the component designators are of the 3xx series.
> It was procured under Order No. 4930-PHILA-42, suggesting a 1942 
> contract.
> The MFP date is 9-46.
> There is no case, bottom plate nor front panel.
> The rear connector has been removed.
> There is a square Jones plug on the top rear of the chassis.
> The dimensions are 12.25" deep x 7.5" high x 7.125" wide.
> I can send some pictures if someone wants to see it.
> The frequency range suggests possible tank or artillery and the weight 
> goes along with this.
> The front of the radio is simple: there is a band switch (in the 
> middle of the dial, a tuning know under the dial, a switch (probably 
> on/off) to the left of the dial, two phone jacks to the left and below 
> the dial, a volume control to the right and below the dial and an 
> antenna ceramic standoff to the right and above the dial.
>
> Any ideas as to what this receiver is?
> I would like it get it going again, just because I have it.
>
> 73
> Glenn
> WB4UIV
>