AEI 800 Telephone
AEI 800 series telephones
The 800 series was the name given by AEI to their version of the BPO Telephone 706.
Due to the usual politics within the P.O., it was not accepted and a poorer Ericsson design was taken up. However, even to the P.O., the idea of using a P.C.B. seemed a good one (instead of the appalling hard-wired cat's cradle on pillars in the Ericsson prototype) and Siemens found themselves in the position of having to make another company's design (the P.O. always had three suppliers for their equipment).
Siemens Brothers engineers also studied a Siemens of Germany (no connection except historically) telephone where, cleverly, everything had been crammed into a canister just behind the dial (i.e., the case was virtually empty) but this was probably too advanced for the UK.
Last revised: March 19, 2018