Posts: 103
Threads: 48
Joined: Nov 2005
City: Freehold, NY
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
Posts: 13,776
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City: Ferdinand
State, Province, Country: Indiana
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.
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Ron Ramirez
Ferdinand IN
Posts: 103
Threads: 48
Joined: Nov 2005
City: Freehold, NY
Ron,
Thanks for the infomation. How good of a performer was this radio on the shortwave end?
Chris
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Honestly, I can't tell you...I've never owned one, nor have I ever worked on one.
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Ron Ramirez
Ferdinand IN
