Re: Telephone exchange jackfield help
I wondered about the GPO/POT PMBX4, but when looking for that I found this which looks much more likely:-
https://switchboard-uk.tumblr.com/po...-manual-branch
Quote:
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The cords are mounted in spring-loaded cassettes rather than hanging on weighted pulleys.
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Graham. Forum Moderator
Reach for your meter before you reach for your soldering iron.
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