First Transatlantic Transistorized QSO, 1957

1957FebPE3

Sixty years ago this month, the February 1957 issue of Popular Electronics
reported a first in transistor communication, with the first transatlantic amateur contact by W1OGU over a distance of 3800 miles. His transmitter is shown here. It used two Raytheon 2N113/CK761 fusion-alloy transistors.