R.A.F. Henlow Signals Museum Exhibits for disposal

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Resistor Variable	Responser IFF	Rheostat GPO Type F	Signal Generator Type SG-34-GPM-15	Signal Generator Type TF1066B (Marconi)

GPO Rheostat Type F

Uses three sets of resistors using manganin wire wound on ceramic bobbins.

The first set of resistors goes from 40 to 400 ohms in 40 ohm steps, the second set goes from 400 to 4000 ohms in 400 ohm steps.

The third set of resistors of uses 4000 20 10 4 3 2 and 1 ohm switched in and out by use of shorting plugs giving a total resistance of 8440 ohms.

Rheostat GPO Type F (Photograph Number 0099)

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