TELEPHONE No. 786 & 8786


Basic network, low send level, push button push button Trimphone for use on MF signalling systems. Similar to the Telephone No.766.

The Telephone No. 8786 was a 786 modified for Plug and Socket working.  The 8786RR was fitted with a Timed Break Recall button (Register Recall).

Note the front of the casing is much higher than an ordinary Trimphone, because of the size of the circuit board fro the keypad.

Introduced around 1978.

 



Additional Information
Model Mark Blue Grey Green PBU Introduced Remarks
Tele 786 Mk 1 y y y 52A/1 8/76 STC - was 1/766
  Mk 2 y y y 52B/1 1/80 STC - was 1/766 (cost reduced)
  Mk 3 y y y 52A/2 10/78 GEC - was 2/766
  Mk 4 y y y 52A/3 1/79 PYE - was 3/766
  Mk 5 y y y 52C/1 8/79 STC - was 4/766
  Mk 6 y y y 52B/2   GEC
  Mk 7 y y y 52B/3   PYE/TMC
  Mk 8 y y y 52A/4   PLESSEY
  Mk 9 y y y 52A/5   BTF
Tele 8786 Mk 1 y y y 7A   GEC
  Mk 2 y y y 54A/1   STC
  Mk 3 y y y 54A/4   PTL
  Mk 4 y y y 12A   PYE-TMC
  Mk 5 y y y 54A/1   GEC
  Mk 6 y y y 54A/3   TMC
Tele 8786RR Mk 1 y y y 7A   GEC
  Mk 2 y y y 54A/1   STC
  Mk 3 y y y 54A/4   PTL
  Mk 4 y y y 12A   PYE-TMC
  Mk 5 y y y 54A/1   GEC
  Mk 6 y y y 54A/3   TMC

How to wire your Telephone No. 786 to make it work on Plug and Socket

 

 
 
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Last revised: May 30, 2010

FM