GEC Loudspeaking telephone
I have one of these, but little infomation on it:-
https://www.britishtelephones.com/gec/tel1l.htm Ideally I would like a circuit diagram or a connection diagram - but any infomation would be useful - especially about the jumpers inside. Thank you. I am sure someone somewhere has diagrams for this. Thanks. |
Re: GEC Loudspeaking telephone
More info about the GPO version (produced by GEC) at https://britishtelephones.com/lst2.htm
Circuit diagrams of GPO version available to Telecoms Heritage Group members via BT Archives |
Re: GEC Loudspeaking telephone
Looking at the circuit diagrams of the LST2a and LST2b tells an interesting
story - the optimisation of the line circuit for single line working including the change from using relays to using contacts on the ans switch. Very interesting. |
Re: GEC Loudspeaking telephone
Still not found the required circuit diagram, but LST2 is helpful as I think the amplifier section is similar or maybe even the same.
Anyone out there that can post the correct diagram would be nice. Thanks. |
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