Looks like a 42-PT7 but with 6 tubes instead of 5. Purchased as a 42-PT3 which is identified at radio museum as a 5 tube wooden cabinet with the same tube lineup as the PT7. Sticker on rear of chassis # T47958. Paper tag inside cabinet Part No. 10592-c is I think a cabinet designation. Tube lineup of this radio is 50L6GT, 7C7, 7B7, 35Z3, and 7A8 (maybe).
Nostalgia Air doesn't list a schematic for a 42-PT3. Not sure what I have here.
Help
Elfiself
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 03-12-2018, 04:45 PM by Radioroslyn.)
Sorry misread your post and thought you were looking for a diagram for the 6 tube set. There's a bunch of 5 tube models.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Now. You say your chassis has six tubes yet you only list five?
Quote:Tube lineup of this radio is 50L6GT, 7C7, 7B7, 35Z3, and 7A8 (maybe).
That's five tubes.
The 42-PT2, 42-PT3, and 42-PT7 uses these five tubes: 7A8, 7B7, 7C6, 35Z3, 50L6GT.
Model 42-PT10 uses six tubes: 7C7, 7A8, 7B7, 7C6, 50L6GT, 35Z3.
Please confirm whether you have five or six tubes.
If five, it is OK. If six, then you have a 42-PT7 with a 42-PT10 chassis, which means that someone in the past took two radios and made one. Maybe they had a 42-PT10 and broke the (Bakelite) cabinet, liked the RF amp which the 42-PT10 has, so stuck the chassis in a 42-PT7 cabinet?
Terry i am looking for a 6 tube set
50L6GT, 7B7, 7C7, 7C6, 35Z3, 7A8
PT12 has right tube lineup
Guy I bought it from thought he was selling me a 42-PT3 which is what I wanted because the PT3 has the same schematic as the PT7. However, he doesn't think the cabinet looks like a pt12. Could be a PT12 chassis in a PT3 cabinet.
This radio has an RF transformer like the PT12 .
Larry
It would be greatly helpful if you would post pictures of the radio in question. Then there would be no doubt as to the cabinet.
Quote:Could be a PT12 chassis in a PT3 cabinet.
I believe that I have already identified the chassis in post #6 above. While it could also be a PT-12 chassis, I would have to look up the schematic to see if the tube lineup matches between PT-12 and 42-PT10.
Question on radio continues. Seems most 42-PT12 have plastic case. The model I have has a wood cabinet I feel is original as the aerial loop is mounted on a paper strip which was stapled on the back interior of the cabinet. Please see attachments. I removed the chassis w/aerial cabinet is very rough and in pieces.
elfiself
as a side note 42-PT -10 schematic shows 2 7C6 tubes, PT12 schematic shows 1 7C6 and 1 7C7. This radio has 1 7C6 and 1 7C7
(This post was last modified: 03-14-2018, 08:16 AM by elfiself.
Edit Reason: Addditional info
)
While it could also be a PT-12 chassis, I would have to look up the schematic to see if the tube lineup matches between PT-12 and 42-PT10.
