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Kind of a MILF

#telephones #telephone switch #step-by-step switch #Ma Bell

Just arrived in the mail: A rare glimpse of the Bell Labs panel installation. This was a custom build of the panel switch used in the Laboratories to test ideas before they were released into the wild. So cool!

#photograph #1920s #bell labs #bell laboratories #panel switch #telephone switch #telephony

These sequence switches are part of a test frame that I suspect is the oldest part of our panel office. They have been not working for soooo long but tonight I finally got them to go. Now I can move on to troubleshooting the next part of the circuit 😊

#made with tumblr #gif #bell system #telephone switch #museum of communications

Closeup of a Stromberg-Carlson XY telephone switch.

#xy switch #stromberg-carlson #telephone switch #telephone system #gif

#telephone switch

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