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Wiring Western Electric Model 500 with CNET 425B Network

Started by Dan/Panther, April 30, 2010, 01:07:52 AM

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What is the difference between the 425B network and the 425E network?


425E has a screw terminal designated "C" to accommodate the spade-tipped hookswitch lead. On sets with 425B networks, most of the hookswitch leads are soldered, so there was no need for a "C" screw terminal.
"C'est pas une restauration, c'est une rénovation."--François Martin.

Greg G.

Quote from: Dan/Panther on April 30, 2010, 01:07:52 AM
I drew up this diagram for the above mentioned phone.
Please let me know if you find any errors.

Awesome! I just used it to resurrect a DOA 500.
The idea that a four-year degree is the only path to worthwhile knowledge is insane.
- Mike Row