BELL No. 61A & 61B
Mains operated bell with a single 6" gong. Operating mechanism was a single coil.
Bell No. 61A - 200/250v A.C. (7000 turns of 38swg wire with a resistance
of 630-660 ohms).
12" high by 5½" across.
Coloured Grey (BSS 381C, Colour 631).
Drawing CD710 (dated 1949).
Last revised: July 11, 2021