UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Phil G4SPZ · 18th Feb 2018, 4:39 pm

Very interesting, Dave. It seems that you have pinpointed the date when rectifier biasing was introduced, to somewhere between 1939 and 1943.

Does the "add half a division..." instruction date from 1939 or earlier, or was it continued post-1943? The quest for improved AC accuracy was probably driven by the radio trade.

18th Feb 2018, 4:39 pm	#1583
Phil G4SPZ Dekatron Join Date: Apr 2005 Location: Bewdley, Worcestershire, UK. Posts: 4,748	Re: AVO Multimeter survey Very interesting, Dave. It seems that you have pinpointed the date when rectifier biasing was introduced, to somewhere between 1939 and 1943. Does the "add half a division..." instruction date from 1939 or earlier, or was it continued post-1943? The quest for improved AC accuracy was probably driven by the radio trade. __________________ Phil Optimist [n]: One who is not in possession of the full facts