This design is now very old. It dates from way before the end of the last century. It appeared in GQRP SPRAT magazine. This was way before digital schematics, so the schematic was hand drawn. It worked some impressive DX.
See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/15m-qrp-cw-pipit .
That’s pretty neat! I love the hand drawn schematics indeed
ReplyDeleteLove the handrawn schematics
ReplyDeleteOh… I see content moderation is on.