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72H3A dial

Started by poplar1, January 19, 2023, 10:11:04 PM

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The 72H3A  Touch-Tone dial is often found on WE 2500 DMG, 2554 BMPG, and others manufactured or remanufactured starting in 1983. The connections are slightly different from those of the 35-type dials. When replacing a 35-type dial, if there is a polarity guard in the telephone set, it should be removed. The 72-type dial has a built-in polarity guard.

See attached table from TCI Library.

"D" is the screw terminal on the back of the dial.

"C'est pas une restauration, c'est une rénovation."--François Martin.