We found this powerful transmitter for radio amateurs at Radio Craft in May 1947. Power was 500 W and frequency controlled by crystal selection. The valve was the familiar 811 with a board supply of 1500 V.

We found this powerful transmitter for radio amateurs at Radio Craft in May 1947. Power was 500 W and frequency controlled by crystal selection. The valve was the familiar 811 with a board supply of 1500 V.