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vinrads · 6th Mar 2018, 10:37 am

Strange readings on the rf amp valve on my beloved supersonic , there is only about two volts on the anode ,this is due to it being connected via the filter tx to the heater cct .

The valve is amplifying in fact there is loads of gain , I need to use an attenuate the input on strong stations. Has anyone come across the type of thing before. Mick.

6th Mar 2018, 10:37 am	#9
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,754	Re: Supersonic Heterodyne radio 1920's. Strange readings on the rf amp valve on my beloved supersonic , there is only about two volts on the anode ,this is due to it being connected via the filter tx to the heater cct . The valve is amplifying in fact there is loads of gain , I need to use an attenuate the input on strong stations. Has anyone come across the type of thing before. Mick.