Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco Cda 44-121 Ident & Info Required
#6

CanoeBear

Welcome. I have just compared the schematic of the Canadian 44 to the USA 41-300 and the chassis are basically the same, as other folks have mentioned. The cabinet is the same as the USA 41-315X and 41-316RX. I would call it the equivalent of the USA 41-315X because of the cabinet.

I only see one minor difference in the schematics of both: the suppressor grid of the first 7B7E (1st IF) tube connects to the AVC line - top of cap (31) instead of to ground in the USA version.

It is a 1941 model, apparently also offered in the 1942 season in Canada but not in the USA.

If Arran does not have the schematic, I think Just Radios sells Canadian radio schematics.

http://www.justradios.com/

You could also order the 41-300 schematic from Chuck Schwark, which will have more complete info than the RCC manual has, just bearing in mind the slight difference in the circuitry mentioned above. Well worth the small fee charged.

http://www.philcorepairbench.com/schematics.htm

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Philco Cda 44-121 Ident & Info Required - by CanoeBear - 12-19-2014, 01:35 PM
RE: Philco Cda 44-121 Ident & Info Required - by Ron Ramirez - 12-22-2014, 08:37 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Correct model 84 Ac plug an cord type
From what I read Philco went to using brown rubber power cords in 1936, so cloth was used in the 1935 and earlier models...Arran — 11:25 PM
Correct model 84 Ac plug an cord type
Hi Bruce, I have not worked on an 84, but in general, power cords for almost any radio prior to 1938 was cloth covered...MrFixr55 — 08:34 PM
Restoring Philco 38-14
OK, well, so after staring at the sch again, I realized the problem had to be the #12/12A padder. I put a scope on the o...morzh — 08:15 PM
Correct model 84 Ac plug an cord type
Hello Bruce, I mostly use brown far as my cloth powercords go ! Here is the plug that I have used bakelite Acorn style...radiorich — 08:05 PM
Correct model 84 Ac plug an cord type
Looking for as correct as can find the right Ac plug an the correct colored cloth line. Ive seen many old photos but mos...Bruce — 04:13 PM
Restoring Philco 38-14
Rod Two Y-caps make sense if you use them from L/N to the chassis; this is only makes sense in the transformer radios...morzh — 10:11 AM
Restoring Philco 38-14
Mike, I'm curious about a specific use of he Y cap. Lately I've seen a single cap across the power transformer primary. ...RodB — 09:01 AM
Restoring Philco 38-14
hello morzh , That sounds like a plan ! Sincerely Richardradiorich — 07:45 AM
Restoring Philco 38-14
Richard, It helped some, but I still had the whining when engaging the rear power strip (I did not realize it was fro...morzh — 07:07 AM
Restoring Philco 38-14
Hello morzh, Yes , that dreaded hum in my room where i do alighment I have my cable modem and router plus desktop plus ...radiorich — 11:25 PM

[-]
Who's Online
There are currently 2425 online users. [Complete List]
» 1 Member(s) | 2424 Guest(s)
Avatar

>