I asked him to build an one tube CW transmitter based on Ameco AC-1, BUT with VFO! Ameco AC-1 using only crystals. The only tube is the Russian made GU-50. KW7T is friend of mine. Very Very Good Ham Radio Technician.
I have a collection of more that 30 different receivers and CW transmitter. This transmitter is the last of his projects. As you can see my QSL card has a picture of one of his projects!