Used on Direct Exchange Lines with Telephone No's 156LB,
196LB or 246 in LB areas. Also used on CBS
Exchanges No's 1, 2 &
3.Came complete with twin bell gongs, 1000 ohm ringer, Capacitor and a Coil Induction No. 21.
Used on Direct Exchange Lines with Telephone No's 156LB,
196LB or 246 in LB areas. Also used on CBS
Exchanges No's 1, 2 &
3.
Came complete with twin bell gongs, 1000 ohm ringer, Capacitor and a Coil Induction No. 21.
A Bakelite cover was provided. Diagram N531.
Click here for the circuit diagram - Web users - CD users
Click here for the difference between a Bell and a Bellset
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