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AUTOMATIC TELEPHONE
Gecophone automatic telephone, used on P.A.X. 5000 and 5100. This phone is fitted with a D.C. Trembler bell in place of the A.C. Ringer which is fitted in the No. 75. Introduced circa mid 1932. This telephone connects via three wires. See also the GEC K8389 and ST1501 The No. 90 and the ST 1501 used different internal components from the K8389. Known by GEC as the Gecophone. Taken from GEC Current Comments, Volume 2, Number 4,
April 1932 Click here
on how to identity different models and circuit diagrams
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Last revised: March 08, 2022FM2 |