Many years ago I designed and made this QRP (800mW) CW rig of 15m.
It worked remarkably well and worked some impressive DX.
For several months it was the only rig I used, out of choice. Every QSO was so satisfying. It appeared in GQRP SPRAT. It was in the days before schematic drawing packages, so the schematic was hand-drawn. I used Neosid toroids as these were at hand, although I am sure Amidon ones would be suitable with turns adjusted.
Values are on my webpage. As with all my designs, please use this as a starting point for your own ideas and do not be afraid to change things if this makes the design better! The SBL1 mixer can certainly be replaced by similar double balanced mixers or a homebrew version.
See https://sites.google.com/view/g3xbm4/home/hf-mf-and-lf/homebrew/15m-qrp-cw-pipit .
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