Forum The PHILCO Phorum

Just finished restoring my Philco 37-670 and the Rider service data mentions something called a "Philco High-Efficiency Aerial". It appears to be some kind of balanced line antenna, like a dipole or loop antenna. I searched online for what it might have been but came up empty. Does anyone know what kind of antenna they are referring to?

i Hi everyone, This is a bit of a long shot but Google has not provided an answer - and perhaps it will be clear why. I have come across a New Zealand newspaper article from 1911 which describes a demonstration here in Wellington , our capital city , of a piece of apparatus called a "Phonofor " . This equipment allowed voice transmission along a morse telegraph line of over 100 miles long apparently as clear as a bell with none of the buzzing which apparently characterised attempts at trying to send voice messages along a telegraph line usually dedicated to morse transmission. The reason I am interested is because this demonstration , to a small group of interested railway personel back in 1911 was conducted by my great grandfather who was at that time the second in charge electrical engineer for the New Zealand Government Railways. Another newspaper cutting describes him overseeing the installation of electric lighting in the Invercargill locomotive roundhouse, current being provided by a gas engine and generator installed nearby. If anyone can throw any light on what the Phonofor was and /or how it worked I would be very grateful. The reason I have tried here on the Phorum is because New Zealand Railways did source much of its equipment from the United States, Baldwin locomotives being one such . Thanks everyone.

i Hi everyone, This is a bit of a long shot but Google has not provided an answer - and perhaps it will be clear why. I have come across a New Zealand newspaper article from 1911 which describes a demonstration here in Wellington , our capital city , of a piece of apparatus called a "Phonofor " . This equipment allowed voice transmission along a morse telegraph line of over 100 miles long apparently as clear as a bell with none of the buzzing which apparently characterised attempts at trying to send voice messages along a telegraph line usually dedicated to morse transmission. The reason I am interested is because this demonstration , to a small group of interested railway personel back in 1911 was conducted by my great grandfather who was at that time the second in charge electrical engineer for the New Zealand Government Railways. Another newspaper cutting describes him overseeing the installation of electric lighting in the Invercargill locomotive roundhouse, current being provided by a gas engine and generator installed nearby. If anyone can throw any light on what the Phonofor was and /or how it worked I would be very grateful. The reason I have tried here on the Phorum is because New Zealand Railways did source much of its equipment from the United States, Baldwin locomotives being one such . Thanks everyone.

i Hi everyone, This is a bit of a long shot but Google has not provided an answer - and perhaps it will be clear why. I have come across a New Zealand newspaper article from 1911 which describes a demonstration here in Wellington , our capital city , of a piece of apparatus called a "Phonofor " . This equipment allowed voice transmission along a morse telegraph line of over 100 miles long apparently as clear as a bell with none of the buzzing which apparently characterised attempts at trying to send voice messages along a telegraph line usually dedicated to morse transmission. The reason I am interested is because this demonstration , to a small group of interested railway personel back in 1911 was conducted by my great grandfather who was at that time the second in charge electrical engineer for the New Zealand Government Railways. Another newspaper cutting describes him overseeing the installation of electric lighting in the Invercargill locomotive roundhouse, current being provided by a gas engine and generator installed nearby. If anyone can throw any light on what the Phonofor was and /or how it worked I would be very grateful. The reason I have tried here on the Phorum is because New Zealand Railways did source much of its equipment from the United States, Baldwin locomotives being one such . Thanks everyone.

https://philcoradio.com/library/download...8-1949.pdf Hello, I have been working on my Philco 48-1266. I am NO expert but have brought my other radios back to life. Four consoles: 36 and 37 Philco, 38 Zenith and 49 Westinghouse. Three tabletops: 2- 48 Westinghouse and a 48 Philco. Even wound coils for the first time on the 36 Philco. First the audio section is working great! The push pull 6V6 will blow you out of the room playing a record. I can get the 3 local stations at a very low volume. The volume seems to be even lower in the lower freq. like 570kHz. Tuning it on the dial or the pushbuttons sound quality is exactly the same. Trying to align the IF starting on the audio side first 2 trimmers work fine but the third and fourth don't do anything. The other AM trimmers all work. All electrolytics and paper caps were replaced. Out of spec resistors replaced. All coils checked for resistance. Tubes changed and tested. Voltages all seem good. Should I start testing the small caps out of circuit? My main worry is having to open the IF can with the 2 non-working trimmers. Looks like a headache to get the 1/4" nuts under the band selector. I did check the fixed caps in the other 2 IF cans. Any help narrowing down what to look at would be greatly appreciated.

https://philcoradio.com/library/download...8-1949.pdf Hello, I have been working on my Philco 48-1266. I am NO expert but have brought my other radios back to life. Four consoles: 36 and 37 Philco, 38 Zenith and 49 Westinghouse. Three tabletops: 2- 48 Westinghouse and a 48 Philco. Even wound coils for the first time on the 36 Philco. First the audio section is working great! The push pull 6V6 will blow you out of the room playing a record. I can get the 3 local stations at a very low volume. The volume seems to be even lower in the lower freq. like 570kHz. Tuning it on the dial or the pushbuttons sound quality is exactly the same. Trying to align the IF starting on the audio side first 2 trimmers work fine but the third and fourth don't do anything. The other AM trimmers all work. All electrolytics and paper caps were replaced. Out of spec resistors replaced. All coils checked for resistance. Tubes changed and tested. Voltages all seem good. Should I start testing the small caps out of circuit? My main worry is having to open the IF can with the 2 non-working trimmers. Looks like a headache to get the 1/4" nuts under the band selector. I did check the fixed caps in the other 2 IF cans. Any help narrowing down what to look at would be greatly appreciated.

https://philcoradio.com/library/download...8-1949.pdf Hello, I have been working on my Philco 48-1266. I am NO expert but have brought my other radios back to life. Four consoles: 36 and 37 Philco, 38 Zenith and 49 Westinghouse. Three tabletops: 2- 48 Westinghouse and a 48 Philco. Even wound coils for the first time on the 36 Philco. First the audio section is working great! The push pull 6V6 will blow you out of the room playing a record. I can get the 3 local stations at a very low volume. The volume seems to be even lower in the lower freq. like 570kHz. Tuning it on the dial or the pushbuttons sound quality is exactly the same. Trying to align the IF starting on the audio side first 2 trimmers work fine but the third and fourth don't do anything. The other AM trimmers all work. All electrolytics and paper caps were replaced. Out of spec resistors replaced. All coils checked for resistance. Tubes changed and tested. Voltages all seem good. Should I start testing the small caps out of circuit? My main worry is having to open the IF can with the 2 non-working trimmers. Looks like a headache to get the 1/4" nuts under the band selector. I did check the fixed caps in the other 2 IF cans. Any help narrowing down what to look at would be greatly appreciated.

Finishing up a restore on a nice 42-355. For the dial cord the diagram shows that both ends tie off on the spring. Is that correct ? Thank you

Finishing up a restore on a nice 42-355. For the dial cord the diagram shows that both ends tie off on the spring. Is that correct ? Thank you

Finishing up a restore on a nice 42-355. For the dial cord the diagram shows that both ends tie off on the spring. Is that correct ? Thank you

This speaker worked before but when I plugged in this morning I saw a puff of smoke. Immediately unplugged it then took the tape off carefully, noticed a slight burn mark, and found three loose small wires marked 1, 2 and 3 on the pic. The larger wire in the middle with the piece of heat shrink is where the correct wire needs to be attached. I get continuity between wires 1 and 2. Does that mean that I should solder them together and attach #3 to the larger wire with the heat shrink. I’ve never worked on a speaker field coil before. Or should I just remove all the tape from surrounding the rest of the field coil and then try to determine where these wires go? I do have some #38 wire but never used it before. What is the best way to solder these wires together? IMG_3111.jpeg Size: 1.17 MB Downloads: 55

This speaker worked before but when I plugged in this morning I saw a puff of smoke. Immediately unplugged it then took the tape off carefully, noticed a slight burn mark, and found three loose small wires marked 1, 2 and 3 on the pic. The larger wire in the middle with the piece of heat shrink is where the correct wire needs to be attached. I get continuity between wires 1 and 2. Does that mean that I should solder them together and attach #3 to the larger wire with the heat shrink. I’ve never worked on a speaker field coil before. Or should I just remove all the tape from surrounding the rest of the field coil and then try to determine where these wires go? I do have some #38 wire but never used it before. What is the best way to solder these wires together? IMG_3111.jpeg Size: 1.17 MB Downloads: 103