Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

40-140
#1

I recently purchased a 40-140 early model table top with the original back. I have found it to be rare to find them with the back on them. When I started to take it apart I found that the wire wound antenna on the back was covered with paper and had the part number 38-9978 on it. What was the purpose of this paper. There was a wire connected to the paper on it was all still intact. Also on the top of the radio there seems to be another antenna that has a snap on button to connect to the wood frame. It also has a part number of 38-9893 on it. Is this common is is this an add on. It also says it was built to recieve TV sound. How was this accomplished?

Thanks in advance,
Chris
#2

I do not know why Philco covered their loop antennas with paper in their 1940 models, but they did, for whatever reason. Thinking as I type...probably to help protect the semi-fine wire (around 24-26 gauge or so) used in the 1940 loops.

The antenna mounted under the top of the cabinet must surely be the SW loop. All of the larger 1940 Philcos had a single turn loop mounted in the top of the cabinet to pick up shortwave.

"Built To Receive Television Sound" - It was planned for Philco's early (prewar) TV sets to broadcast the sound via AM on a low frequency (between 540 and 600 kc) to a nearby AM radio, in the same manner as their "RP" series of wireless phonographs with built-in flea-power AM transmitter.

--
Ron Ramirez
Ferdinand IN
#3

Ron,
Thanks for the infomation. How good of a performer was this radio on the shortwave end?
Chris
#4

Honestly, I can't tell you...I've never owned one, nor have I ever worked on one.

--
Ron Ramirez
Ferdinand IN




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1930s Stewart-Warner Tombstone Radio need help identifying model number
UPDATE: I was able to pick up a signal generator on the cheap (amazingly enough) on feebay and I did an IF alignment fol...captainclock1988 — 09:53 AM
Philco 91 Schematic
Hi Rod, The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of ...dconant — 09:34 AM
Just got a 49-1613 need to know...everything!
I just found your post. I have this exact same model, and have had it since 1985 when I was 15 years old! I performed a ...MuzzcoVW — 09:11 AM
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM

[-]
Who's Online
There are currently 9773 online users. [Complete List]
» 1 Member(s) | 9772 Guest(s)
Avatar

>