UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

PJL · 18th Aug 2016, 7:17 pm

You will find my exploits converting a Bell 1A to a Bellset using an induction coil from an early 700 series phone here: https://www.vintage-radio.net/forum/...d.php?t=119966

The induction coil is largely to cancel out the sound from the microphone which would otherwise be heard on the earpiece. The main problem with these old phones is the carbon microphones which are pretty useless.

Does your dial need servicing? It is important that the contacts are clean and the timing is correct.

18th Aug 2016, 7:17 pm	#4
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Candlestick 150 problems You will find my exploits converting a Bell 1A to a Bellset using an induction coil from an early 700 series phone here: https://www.vintage-radio.net/forum/...d.php?t=119966 The induction coil is largely to cancel out the sound from the microphone which would otherwise be heard on the earpiece. The main problem with these old phones is the carbon microphones which are pretty useless. Does your dial need servicing? It is important that the contacts are clean and the timing is correct.