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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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10th Sep 2011, 9:38 pm | #1 |
Pentode
Join Date: Aug 2005
Location: Northwich, Cheshire, UK.
Posts: 206
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Old telephone trouble
Hi,
My 60's/70's style rotary dial phone has stopped dialling out! As you spin the dial, the dialling tone just persists. Dodgy contact somewhere or bad wire ? Advice appreciated. Thanks, J. |
10th Sep 2011, 11:13 pm | #2 |
Dekatron
Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
Posts: 3,684
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Re: Old telephone trouble
Might be related to this thread here: https://www.vintage-radio.net/forum/...ad.php?t=73681
Has your telephone provider ceased loop-disconnect? Do other LD telephones work on your line? Does your LD telephone work elsewhere? Can you hear faint pulse-clicking as you dial? Can you maintain a loop by clicking on the cradle switch (but don't tap out 1-1-2 or you'll get the emergency services if LD does indeed still work on your line)?
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16th Sep 2011, 11:17 pm | #3 |
Pentode
Join Date: Aug 2005
Location: Northwich, Cheshire, UK.
Posts: 206
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Re: Old telephone trouble
Hi,
Because it seemed inconsistent I doused the dialler mechanism with Servisol, which did the trick! Cheers, jm. |
5th Nov 2011, 1:32 am | #4 |
Retired Dormant Member
Join Date: Nov 2010
Location: Dover
Posts: 12
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Re: Old telephone trouble
That dial won't last long then!
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5th Nov 2011, 8:59 am | #5 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 640
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Re: Old telephone trouble
Now you know, it is mechanical. Servisol, CRC.... does the job fine short term basis. It cleans, and oils temporarily. To do this it contains a mix that may harm some parts.
Clean with spirits; (rinse with some meths). Dry off, let dry, and use the most thin oil you have in bearings and where the gears are in touch with each other. "Sewing machine oil" is OK. Don't use too much. dsk |
5th Nov 2011, 6:24 pm | #6 |
Retired Dormant Member
Join Date: Nov 2010
Location: Dover
Posts: 12
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Re: Old telephone trouble
You may find this page of interest. GPO's 'Maintenance of No.12 dials' With full instructions what to wash (and with what) and what to oil (and how much, *little)
http://www.britishtelephones.com/tel%20auto%20b5125.htm |
6th Nov 2011, 10:43 am | #7 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,528
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Re: Old telephone trouble
Good luck finding some 23SWG wire
I suppose the GPO used odd gauge wire along with odd BA size screws
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6th Nov 2011, 7:00 pm | #8 |
Dekatron
Join Date: May 2008
Location: Derby, UK.
Posts: 7,735
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Re: Old telephone trouble
23 SWG is equivalent to 0.6 mm. diameter, or 20 amp fuse wire.
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If I have seen further than others, it is because I was standing on a pile of failed experiments. |
17th Nov 2011, 9:31 pm | #9 | |
Retired Dormant Member
Join Date: Jan 2010
Location: Coventry, Warwickshire, UK.
Posts: 339
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Re: Old telephone trouble
Quote:
Rings a bell - isn't 0.6mm = 6lb/mile, yep, certainly is - that's why the GPO specified it, it's the stripped core of internal cable (8w/6w/4w) just miced a bit. Probably way back in the distant past some GPO engineer needed something fine and what came to hand was that. |
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