| Battery, Secondary No. 14 This is a
portable manhole lighting set which used two Batteries, Secondary No. 25
and a Boxes, Battery No.11.
Drawing - BC36.
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| Battery, Secondary No. 15 This is a
12v, six-cell, pasted-plate, lead-acid battery having a rated capacity of
not less than 8 ampere hours to an end voltage of 10.8 at the 20 hour rate
of discharge.
Dimensions - 9.75" length x 2.8" wide x 4.3" high.
Specification - BC48.
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| Battery, Secondary No. 16 Two of
these were fitted to each PMBX No. 4 switchboard position.
Capacity - 24v - 225mA/H.
Sealed Alkaline.
Drawing - BC50.
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| Battery, Secondary No. 17 A battery
of two enclosed lead-acid cells in a wooden crate generally in accordance
with B.S. 2550.
The battery supplies a current of 0.46 amps for 14 days to an end point
of 1.8 volts per cell.
The battery is suitable for stationary duty on floating trickle charge
at 2.3 volts per cell.
Dimensions - 6.6" long x 7.9" wide x 17.6" height.
Specification - BC56.
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| Battery, Secondary No. 19 This is a
Battery of 24 enclosed lead-acid, traction type, cells in accordance with
BS2550.
The battery shall have a capacity of not less than 100aH. when
discharged at a rate of 10amps.
Specification - BC63.
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| Battery, Secondary No. 20 This is a
12.4 volt sealed alkaline secondary battery
of 10 cells.
Dimensions - Length 108mm x Diameter 52mm.
Specification - BC66.
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| Battery, Secondary No. 21 Used on
the WB900 subscriber unit. Ten batteries could be charged on a
Power Unit No. 137A.
Rated at
9 volts - 200ma/H
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| Battery, Secondary No.
22 Used in the Telephone No. 1/764, LST SA10174 and LST No. 4E.
Capacity -
4.8 volts - 150mA/H.
Nickel-Cadmium.
Coloured red.
Drawing - BC71.
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| Battery, Secondary No.
23 First used in Telephone No. 2/764.
Capacity -
7.2 volts - 150mA/H.
Nickel-Cadmium.
Coloured Blue.
Drawing - BC72.
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| Battery, Secondary No. 24 A 24v,
25Ah lead-acid battery of the portable type.
Used by single-man working parties.
Supersedes Battery, Portable Lightweight, Green.
Drawing - BC73.
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| Battery, Secondary No. 25 A12v, 44Ah
lead-acid battery, which forms part of the Battery, Secondary No. 14.
Drawing - BC76.
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| Battery, Secondary No. 27 A 16 cell
Nickel-Cadmium battery with an output of . 19v, rated at 100m/AH capacity.
First use on solid state sub's private meter.
Drawing - BC80.
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| Battery, Secondary No. 28 An 11 cell
nickel-cadmium Battery rated at 1Ah.
Used for volatile memory in Register Translator 13 equipment.
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| Battery, Secondary No. 31 This
battery consists of 12 Cells Secondary in a container complete with
connectors.
Used on the Fireman's Call-out Systems, engine starting, small PBX and
other customer standby equipment.
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| Battery, Secondary No. 32 A 12v
rated at 1Ah. DK type Nickel-Cadmium Battery.
Used on Equipment,. Carrier, WB 1400 and Receiver, Speech WB 1400.
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| Battery, Secondary No. 34 For use in
Coin Telephones CT29 and CT 31.
Contains 6 x Varta 1.2v cells, enclosed in a yellow plastic casing
Capacity - 7.2v - 250mA/H.
Nickel-Cadmium.
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| Battery, Secondary No. 35 Used in
Coin Telephones CT24A, CT25A.
Contains 5 x 1.2v Varta Cells, enclosed in a green plastic casing.
Capacity - 6v - 250mA/H.
Nickel-Cadmium.
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| Battery, Secondary No. 36 Used in
Subscriber Unit WB900 Adaptor No. 1.
Capacity - 5 volts - 250mA/H.
Nickel-Cadmium.
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