Re: Converting a Telephone 746 for use on a plug and socket system.
Ring trip isn't the same as line seizure, as I discovered doing my schoolboy experiments in the late 1960s. Probably only needed a few hundred μs and there was a line reversal to provide an edge for triggering one. Phone Phreaking discussions are probably verboten here so I'll leave out what my "discovery" led to.
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Graham.
G3ZVT
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