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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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6th Dec 2019, 8:20 pm | #1 |
Tetrode
Join Date: Sep 2015
Location: Margate, Kent, UK.
Posts: 56
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Problem with vintage dial 24c on Bakelite 332 phone
Hi everyone
I am having a problem trying to get a type 24c AEG dial to work with a 332 Bakelite phone. The symptoms I get when I wire the dial in are: There is no dial tone, and if you ring into the phone the bells ring but if you pick up the receiver the bell doesn't stop ringing. I have tried this on a working phone so know it must be the dial that is the problem. Everything mechanically seems OK, I have cleaned all the points and they seem to be working OK and the dial is quick enough returning. I am wondering whether it is wired up correctly, as it is set out differently to a type 10 or 12. I have tried to wire it according to a standard wiring diagram but without success. I am attaching a picture of the way it is wired now and just wondered if anyone knows whether this is correct. Many thanks for reading. |
7th Dec 2019, 12:53 am | #2 |
Nonode
Join Date: May 2004
Location: Halifax, West Yorkshire, UK.
Posts: 2,587
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Re: Problem with vintage dial 24c on Bakelite 332 phone
This is the dial commonly fitted to ITI (Indian Telephone Industries) phones. Have a look at this link:
https://www.britishtelephones.com/iti.htm There is a photo of the circuit diagram half way down the page which might help. Alan |
7th Dec 2019, 6:27 am | #3 |
Dekatron
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,225
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Re: Problem with vintage dial 24c on Bakelite 332 phone
I am pretty sure your wiring is wrong. The Blue and Slate (grey) wires should go to one of the off-normal contacts (to short the earpiece), they seem to be going to the impulse contats.
Silly suggestion. Try mirror-reversing the wires. |
7th Dec 2019, 9:47 pm | #4 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 643
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Re: Problem with vintage dial 24c on Bakelite 332 phone
The diagram here: https://www.britishtelephones.com/gp...t322paster.jpg
indicates that the dial is wired wrong. Tony has spotted it, that will make it work! dsk |
7th Dec 2019, 9:51 pm | #5 |
Tetrode
Join Date: Sep 2015
Location: Margate, Kent, UK.
Posts: 56
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Re: Problem with vintage dial 24c on Bakelite 332 phone
Yes the wires were in the reverse order. Re-did them and it worked perfectly.
Seems like quite a nicely engineered dial. Made in Liverpool back in the days that we used to make things in the UK. I attach a photo of the dial wired in the correct order. Thanks all for the advice. |
8th Dec 2019, 6:59 pm | #6 | |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
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Re: Problem with vintage dial 24c on Bakelite 332 phone
Quote:
Note that terminals are numbered in the opposite direction on the AT&E dial to the GPO ones. GPO number clockwise and the AT&E dial anti-clockwise for the relevant contacts. |
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