This is a Preselector for SW receivers (diy hf preselector) circuit. The entry low capacitance of MOSFET modern, with two gates, will create negative inverse reaction through a uncoupled source ...
Most shortwave receivers for use ‘in the shack’ have a 50-coaxial input (usually a SO239 socket) which is not directly suitable for the high impedance of a typical long-wire antenna. The problem is ...
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