double-pole

Also, it does not need a diode matrix keypad but used double-pole switches instead.

The Official Phreaker's Manual Version 1.1 by The Jammer and Jack the Ripper 1991

Also, it does not need a diode matrix keypad but used double-pole switches instead.

The Official Phreaker's Manual V1.1 by The Jammer and Jack the Ripper Part II 1991

In connection with single-pole, double-pole or three-pole overcurrent and undervoltage relays they are suitable for establishing protective facilities with delay effect.

4. Relays and control devices Ernst-Otto Balding 1991

In fact, you can eliminate the hassle and matching of diodes altogether by using double-pole push-buttons.

Tap Issue #27 Retyped by The Lineman 1974

-- A double-pole switch or a switch for a double line is shown in Fig. 44.

Electricity for Boys J. S. Zerbe

The receivers consisted of the latest form of double-pole Bell telephones with some Ader and D'Arsonval receivers for comparison.

Scientific American Supplement No. 822, October 3, 1891 Various

D'Arsonval, Gower-Bell (with double-pole receivers instead of tubes),

Scientific American Supplement No. 822, October 3, 1891 Various

Since the bridge W_ {1} is used for measuring the temperature of both the wall and the air, a fourth double-pole switch,

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

S_ , double-pole double-throw switches for changing from chair to bed calorimeter; S_ , double-pole double-throw switch for changing from wall to air thermometers; G, galvanometer; R_ , rheostat.

Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man Francis Gano Benedict 1913

A double-pole entrance switch must be provided, opening downward, with a double-pole fuse.

Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine Frederick Irving Anderson 1912