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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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12th Mar 2019, 12:16 am | #1 |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
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Tester AT 4557
An item of what I suspect is a piece of vintage telephony equipment and possibly ex-military - which is for sale at an auction near me - has caught my eye. It is marked TESTER AT 4557.
An Internet search revealed nothing. Anyone know anything about it, please? Thanks. Al. |
13th Mar 2019, 11:14 pm | #2 |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
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Re: Tester AT 4557
Tester AT4557 - For testing current adj. of relays other than double coil bridge types. See also Tester AT4569 and then the Vocabulary of Engineering Stores goes on to list all its components.
Hope that helps? |
14th Mar 2019, 9:12 am | #3 |
Dekatron
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,127
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Re: Tester AT 4557
If you're a member of THG*, there is a circuit diagram on their (members-only) resource section.
*If you're not a member, I definitely recommend it if you are serious about old telecommunication equipment.
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Mending is better than Ending (cf Brave New World by Aldous Huxley) |
14th Mar 2019, 2:12 pm | #4 |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
|
Re: Tester AT 4557
Thank you for your replies. I did make a remote 'commission bid', but that was unsuccessful in obtaining this item.
Al. |