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Old 29th Aug 2019, 11:52 pm   #186
ronbryan
Octode
 
Join Date: Jan 2003
Location: Guildford, Surrey, UK.
Posts: 1,686
Default Re: Baird T5 restoration project.

The Wartime Civilian Radio has to employ a small forward bias on the WX6 to make it conduct in a more linear manner. The bias is obtained across the 180 ohm cathode resistor. The most positive voltage is applied to the black end via the 330k and 47k and the most negative voltage to the red end via the IFT secondary. In order to make the diode conduct under these conditions, the black end has to be the anode and the red end the cathode.

Ron
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