Products > Test Equipment
HP ET0004 Variable AC Power supply
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jseefried:
Does anyone have a manual for this vintage variac? It looks similar to a 431b power meter case style with the knob mounted on the top case. So around 1970s vintage. However I cannot locate in in the hparchive catalogs. Thank you.
srb1954:

--- Quote from: jseefried on September 09, 2022, 09:35:59 pm ---Does anyone have a manual for this vintage variac? It looks similar to a 431b power meter case style with the knob mounted on the top case. So around 1970s vintage. However I cannot locate in in the hparchive catalogs. Thank you.

--- End quote ---
The ET model number prefix indicates that it is an HP internal production test gear item. You will be very lucky if you ever find any published information on it.
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