| Press Button, A 2 Terminal
type - one make.
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| Press Button, B 3 terminal
type - one changeover.
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| Press Button, C 3 terminal
type - one change over - short action.
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| Press Button, D 6 terminal
type - two changeovers.
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| Press Button, E Used on
silencers and has two buttons.
3 terminals - two break and one make.
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| Press Button, F Used on
extension circuits.
2 terminals - one make.
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| Press Button, G 2 terminal
type - one make.
Produced in a number of varieties as follows:-
Press Button G, Black.
Press Button G, Brass.
Press Button G, Brass with waterproof barrel.
Press Button G, Brown.
Press Button G, Cocus.
Press Button G, Ebony.
Press Button G, Rosewood.
Click here for additional
information
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| Press Button, H Used on
Telegraph Concentrators (Lamp Signalling).
2 terminal - one break.
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| Press Button, P, Black
Used in connection with calling in facilities on
through clearing-calls, etc., on P.B.X. Switchboards.
To be requisitioned separately if required:-
1 Cord, Instrument No. 3/86B, Brown ...
1 Label No. 268, White
3 terminal - make before break.
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| Press Button, R 2 terminal
- one make.
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| Press Button, S Quick make
delayed break with adjustment between 5 seconds to 5 minutes.
250v, 5amp.
Single pole.
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| Press Button, T Rubber
clad, pear shaped press button used in automatic exchanges as a
routiner reset switch.
2 terminal - one make.
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| Press Button, U
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| Press Button, V Used with
Telephone No. 149 to provide "Enquiry" facilities.
2 terminal - one make
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| Press Button, W
Non-locking
switch first used on the Telephone No. 280 Mark 1.
Comprises of Parts 1/DBO/24 and 1/DBU/14.
Drawing - 90742.
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| Press Button, X Used use
with Switch No. 21A on the Ohmmeter No. 18A.
Drawing - CD2461.
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| Press Button,
Y Comprises of a Switch No. 25A and Part No. 2/DBU/14.
Lockable switch first used on the
Telephone No. 280 Mark 2.
Drawing - 93196.
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