| Receivers, Bell, A Outside terminal
type (OST) Bell receiver. This receiver is a double pole type. |
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| Receivers, Bell, B |
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| Receivers, Bell, C |
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| Receivers, Bell No. 1A For general
use. The coil is of 60ohms
resistance. Mark B includes:-
1 x Earpiece No. 1.
1 x Diaphragm No. 9. Marks C, D and 4001 includes:-
1 x Earpiece No. 2.
1 x Diaphragm No. 12. Mark NT10 includes:-
1 x earpiece No. 1.
1 x Diaphragm No. 19. Click here for more
information
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| Receivers, Bell No. 2 Used on
primary battery telephones. The coil is of 120ohms resistance.
Click here for further information
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| Receivers, Bell No. 3G This receiver
has no permanent magnet and the coil is of 25ohm resistance. Used
mainly on fire alarm circuits with
Telephone No's 53 and 67.
Normally fitted with a Cord, Instrument No. 222.
Includes:-
1 x Diaphragm No. 12.
1 x Earpiece No. 2. |
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| Receivers, Bell No. 4A This Receiver
has no permanent magnet and the coil is of 60ohms resistance. It
is also
called an Electro-magnetic receiver.
Used on Telephones No's 55, 55B, 72, 72A and 98.
American make includes:-
1 x Diaphragm No. 9.
1 x Earpiece No. 4.
Mark 234 includes:-
1 x Diaphragm No. 12.
1 x Earpiece No. 2. Click here for further information
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