|Receiver, Inset No. 1L
Used in most early Bakelite handsets. 80 ohms
Superseded by the Receiver, Inset No. 2P.
Always used with an Earpiece No. 18 and Diaphragm No. 12 (Stalloy
- 52mm diameter).
Note the exposed coils in the centre of the
Ensure that spring washers are fitted to the fixing
See picture below for Pole Grinding in the factory.
Drawing - 62390 (Mark 3).