W0BVT's Hartley Oscilator QRP Transmitter. This is the 807 Hartley oscillator, 6L6 Heising modulated AM transmitter W0BVT used on the net Monday, pix attached. His friend Bob Raid, W2ZM has been very active with the AWA for many years. He talked to him during the 1929 QSO party years past. He builds similar, but more authentic looking transmitters, and many in their group operate "amplitude modulated" power oscillator on the air.