I’ve been building shelves for my wife. So I end up with all these nice pieces of pine, just the right size for the base of a breadboard receiver and a very sturdy cabinet to surround it. Then I find in the junk box two nice variable caps and this old pill bottle coil (with tickler!) that I wound in 1998; I figure they will resonate from around 5 – 15 MHz. Then Jeff Murray, K1NSS does that poster about Dave Richards, AA7EE (scroll down) in which he mentions the virtues of a National Velvet Vernier reduction drive — I have one of those too. And then there is the copper-clad board (from AL7RV/W8NSA) that would be perfect for the front panel. You see where this is going, right? My friends, I am once again on the road to shortwave regeneration. It will have an Armstrong detector with throttle cap.
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The regen Gods are smiling down on your Bill. This one is going to work a treat. You have all the right ingredients – a National Velvet Vernier reduction drive, an air-spaced cap with ceramic insulators, a coil wound on a pill bottle. It HAS to work – it’s in the stars! Dave AA7EE