AMPLIFIER No. 100
This is a three stage valve amplifier used for cable track location and cable pair identification.

The amplifier is used in conjunction with Oscillator No. 23A for location of buried cables and location/identification of cable pairs.

It can also be used with an Oscillator No. 59A for cable pair locating in open joints.

The amplifier can be contained in a Satchel No. 3.

Powered by one Battery, Dry No. 20 and one Battery, Dry No. 22.

Uses two Valve Electronics CV2260 and one CV2259.

Drawing - 90587 (No. 100A) and 91131 (No. 100B).

Circuit diagram - SA9118.

Specification - D1974.
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Last revised: December 04, 2025
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