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Title: DX-40 Circuit Improvements Post by: DMOD on July 14, 2017, 02:10:40 PM Improvements to the DX-40 results in increased RF stability and CW clarity and can be done by decoupling that series circuit in the 6CL6 stages. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Also included here are power control and audio improvements in the speech amplifier and modulator. Updated 3/2/2018 with tube symbols and Parts List. Phil |