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Radio Voltmeters

                

Manufactured: by D.R.P, c 1930's Manufactured: by J.T. c 1930's
Serial Nos. DRP 467602 and DRP 492126 Serial Nos. None
Voltage range: 6 Volt (200 ohm), 120 Volt (4000 ohm) Voltage range: 12 Volt and 120 Volt
Size: 55mm diameter Size: 55mm diameter
Comments: Glass fronted, chrome plated body.  375mm earth cable with point contact probe. Comments: Glass fronted, chrome plated rounded body, much more like a pocket watch. 240mm earth cable with point contact probe.