Battery, Secondary
| Battery, Secondary No. 16 Two of
these were fitted to each PMBX No. 4 Switchboard position.
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| Battery, Secondary No. 21 Used in
WB900.
9 volts - 200ma/H
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| Battery, Secondary No.
22 First used in Telephone No. 1/764.
4.8 volts - 150ma/H.
Coloured red.
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| Battery, Secondary No.
23 First used in Telephone No. 2/764
7.2 volts - 150ma/H
Coloured Blue.
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| Battery, Secondary No. 36 Used in
Subscriber Unit WB900 adaptor No. 1.
5 volts - 250ma/H.
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