Photo courtesy WØGFQ
Leo Meyerson's W9GFQ station looked like this in 1938. His receiver, on the left side of the desk, is a Hammarlund HQ-120. To its right is a Meissner Signal Shifter. Leo is tuning his WRL "custom built" transmitter, which ran a pair of 203As in the final amplifier and used Heising modulation.