Super Regeneration - As described in 1933
Posted: Fri Apr 19, 2024 8:39 pm
Regenerative receivers have never really gone away; the superhet dealt less than a death blow. WiFi, SatCom, IoT all have made sure that the regenerative receiver and the super-regen are alive and well. Just vacuum is now solid silicon.
This post is about the two pages describing super-regen from John Scott-Taggart's "The Manual of Modern Radio", Amalgamated Press, London, 1933. Take a look first at:
Ok, here's a kinda challenge: how about converting Fig 505 to single-gate FET? Could we make it work for 6m (or 4m)? The chapter describes 5m as the target wavelength for the tube design. There's no mention of inductor construction details, but there are plenty of modern 6m examples as a guide.
How would super-regen perform with SSB? Would it give an intelligible audio if tuned to the side of FM? Would the periods before quenching give a CW tone? Still, it's tempting to wonder what might be done with just one FET!
This post is about the two pages describing super-regen from John Scott-Taggart's "The Manual of Modern Radio", Amalgamated Press, London, 1933. Take a look first at:
The principle seems just the same, now 90 years later. Our forebears had brains!
Ok, here's a kinda challenge: how about converting Fig 505 to single-gate FET? Could we make it work for 6m (or 4m)? The chapter describes 5m as the target wavelength for the tube design. There's no mention of inductor construction details, but there are plenty of modern 6m examples as a guide.
How would super-regen perform with SSB? Would it give an intelligible audio if tuned to the side of FM? Would the periods before quenching give a CW tone? Still, it's tempting to wonder what might be done with just one FET!