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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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15th Jul 2018, 2:01 pm | #21 |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
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Re: Info. on 'phone requested
Appropriate use of 'Servisol' on switches plus a clean of the pins at the BT431 plug: they were tarnished. Left for a couple of days.
Today, the test result: the 'intermittent' is now a 'permanent'. Time for an assessment. This 'phone does not have a microphone built in; there is no battery backup for the memory; a manual will never come my way; this 'phone has a fault; this 'phone cost me nothing. Time to part company with it. Second-hand 'phones are cheaply available in charity shops and, moreover, I do not have a pressing need for such - yet. Al. |
15th Jul 2018, 2:19 pm | #22 | |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,944
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Re: Info. on 'phone requested
Quote:
Of course, if you find a phone in a skip then it may well have come out of an office and require a 4 wire connection. |
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15th Jul 2018, 11:47 pm | #23 |
Rest in Peace
Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
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Re: Info. on 'phone requested
I cannot speak for others, but for myself, I have nothing to add to this thread; I have now disposed of this 'phone.
My thanks to everyone who tried to help. Al. |
16th Jul 2018, 12:00 am | #24 |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
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Re: Info. on 'phone requested
Panasonic did two types of phones. "System phones", which were 4w phones. Those for the older "A" series were designed to use a data pair and a speech pair, and the data pair was polarity sensitive. A later system ( from memory -SBS) also used system phones, which would work on A series, but were not polarity sensitive. Then there were the system phones designed to work on the KXT ( 4 W) and KXTD( 2 w ,with a combined speech port . Therewas also the DBS system ( I remember them as 4w ).
Then there was at least one POT- KX-T7310 ,a simple telephone, with sixteen memories on phone and designed as a superior POT extension on those systems that would accept SLT. My post is only designed to illustrate the differing types of Panasonic system /office system phone, that need a data connection to a system to work and highlight the problems of buying any old phone. I spotted a pair of old "A" series 4w phones at a car boot one day, with a notice- "tested and working". I asked whre they had been tested- "At home " and on further enquiries was told on a BT line. Bloke ( IMHO)had no idea of what he was selling. |