OHMMETER No's 7A and 7B
This is a teak cased, rack mounted, Bridge type Ohmmeter for operation from the output of a Rectifier No. 39A (No. 7A) or Rectifier No. 39B (No. 7B).

Ranges:-
0-20 M ohms as ohmmeter.
0.01-999.9k ohms as bridge.

This Ohmmeter operates at 250 volts.

Ohmmeter No. 7A
This is a metal cased Ohmmeter for rack mounting.  For operation from the output of a Rectifier No. 39A.

It can be mounted by means of two Brackets, Mounting BW.

Dimensions
11.1" x 10" x 6.25".

Ohmmeter No. 7B
This is a wooden cased, portable, Ohmmeter operating on 250 volts AC mains.

Includes:-
12ft. Cord, Flexible E.L., 250V., Class D3, 0·001 sq. in.
4ft. Cord, Flexible E.L., 250V., Class D2, 0·001 sq. in.
1 x Ohmmeter No. 7A-250V.
1 x Plug, for Socket-outlet No. 2.
1 x Rectifier No. 39B.

Dimensions
24" x 11/5" x 8.5".

Operation - TI E3F0039

Drawings - CD226 (No. 7A) and 63233 (No. 7B).

Specification - D1395.
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Last revised: December 04, 2025
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