I got this from a hamfest from a pile of stuff that didn't sell and didn't want to take home... A cursory search revealed nothing, but I also wonder if it was "modded" to do something else due to the weird placement of some components/holes.
Anyway it seems like it possibly was simply a mono amplifier - but I don't know why it doesn't have an output transformer as tubes are not low impedance devices.
Tubes are:
35Z5 - diode (left)
12SJ7 - pentode (pre amp, middle)
50L6 - beam power tetrode (power amp, right)
Usually audio amplifiers do not have air or ferrite core inductors, which that thing in front of the 50L6 is. The hole is for a volume control pot that seems to go to the 12SJ7. The other side of the 50L6 has a ¼" phone plug which is the input to the pot.
The green wire on the left spiraling the power cord appears to connect to the 50L6 so I assume it's the output.
Might have to reverse engineer this to see how this really is connected, but this would be too poor to be a receiver from the get go, and this looks like a poor transmitter right now, and curious what it was originally...
As I don't know what it is, I don't know what the criteria is for it "working" ... so I don't know if it's broken or not
Anyway it seems like it possibly was simply a mono amplifier - but I don't know why it doesn't have an output transformer as tubes are not low impedance devices.
Tubes are:
35Z5 - diode (left)
12SJ7 - pentode (pre amp, middle)
50L6 - beam power tetrode (power amp, right)
Usually audio amplifiers do not have air or ferrite core inductors, which that thing in front of the 50L6 is. The hole is for a volume control pot that seems to go to the 12SJ7. The other side of the 50L6 has a ¼" phone plug which is the input to the pot.
The green wire on the left spiraling the power cord appears to connect to the 50L6 so I assume it's the output.
Might have to reverse engineer this to see how this really is connected, but this would be too poor to be a receiver from the get go, and this looks like a poor transmitter right now, and curious what it was originally...
As I don't know what it is, I don't know what the criteria is for it "working" ... so I don't know if it's broken or not
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