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Old 3rd May 2020, 5:57 pm   #1
EF80TVVALVE
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Join Date: Feb 2010
Location: Leicester, UK.
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Default GPO 232 Pyramid phone with attached bell box

Hi all,

I picked up this rather battered 232 phone today with the attached bell box, I believe they're known as the King pyramid.

First inspection was that it looked complete but has obviously taken a hard drop at some point. The bottom section has faced damage. The main phone body is okay other than the screw moulding that holds the dial mechanism in place. I filed down some bakelite and mixed the powder with epoxy to rebuild this part which is currently curing.

The dial mechanism was loose and looks to have been pulled out as the three wires that connect to terminals 4, 5 and 6 in the phone body are all detached. In the bottom circuitry there is a loose wire from the capacitor, I presume this goes to the coil for the ringer?

If anyone can help with the initial wiring problems then that would be great. I'm not sure which colours should go to 4 5 and 6 from the dial mechanism. Only 5 and 6 actually go to the lower phone circuitry, 6 goes to the coil and red cable on the handset. 5 is blue and goes straight to the coil. Also the dial mechanism itself has two wires loose but I presume that these go blue, grey, brown, pink and orange from left to right.

I've tried looking for a schematic but I can't find one for this type, only the stand alone 232 which looks to be different.

Hopefully this will make a nice example, I have a few bakelite phones but have never done anything with them before so this is something new to me really.
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