Key Systems (Electronic, 1A2 etc)

Child Boards

[-] Electro-Mehanical Key Systems (1A1, 1A2 etc)

[-] Electronic Key Systems

[-] Panasonic (PBX) Key Systems

[-] Other Telephone POTS type Simulators


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[1] Seriss 1A2 KTU board build

[2] 4A speakerphone 680A Transmitter / 108A speaker schematics?

[3] Spent this evening interfacing my 1A2 Shoebox KSU with my Avaya Definity G3

[4] Western Electric Home Interphone Restoration

[5] 730A Interpone speaker on ebay

[6] Mounting Cord wire Color coding for older keysets

[7] Tone Commander DP 1900 on ebay

[8] Key systems: Supply, Demand and Discussion . . . if there is still any?

[9] 1A2 over VOIP


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