In round bakelite case with terminals, any value 0.1 to 100 ohms.

In haxagonal bakelite case with lock type socket terminals, precision quality, manganin coils.

In transparent plastic tube, accuracy 0.2% any value 0.1 to 100 ohms.

Provided with plug type short circuit key.
Value: 1k, 2k, 5k, 10k, 15k
(k stands for 1000 ohms)

Fitted in aluminium or steel turn bakelite case with 2 terminals, any value 0.01 to 100 ohms, manganin coils.

Same as above, but with 4 terminals, suitable for Kelvin Bridges.

In round bakelite case with terminals, any value 0.1 to 100 ohms

In haxagonal bakelite case with lock type socket terminals, precision quality, manganin coils

In transparent plastic tube, accuracy +- 0.2% any value 0.1 to 100 ohms

Provided with plug type short circuit key
vallue: A. 1K
B. 2K
C. 5K
D. 10K
E. 15K