Joined the club, Rod pentode superhet radio.

[AdrianPH]

If I get chance I will do some basic tests with Mixers of various types, I have two synth signal generators I can use for signal and osc sources, if I wind a 10.7 Mhz coil for the anode load I could possibly use a SDR receiver stick to measure 10.7 MHz output, or perhaps do a several stage 10.7 IF with a simple detector. All valve mixers of course, and simple types that I can follow.

Adrian