This schematic was sent in to the September 1948 issue of Radio Craft (the last issue published under that name) by one Robert Fink of Cleveland, Ohio.  The circuit was probably a bit on the chirpy side, and the output filtering probably isn’t adequate by modern spectral purity standards, but it probably got the job done.  It put out about 20 watts on 80 or 40 using a single 1614 beam power pentode (plus a type 80 full wave rectifier.)

Tuning was accomplished by plugging an ammeter into the key socket and tuning for maximum current of 80-90 mA.