Shown here on the cover of the April 1937 issue of Radio News is E.M. Walker, W2MW, at the mike of his 5 meter transmitter, the construction details of which are found in the magazine. The set was billed as ideal for the ham who couldn’t afford a crystal controlled rig for the super highs, since he reported many reports of the signal being comparable to crystal control. The transmitter itself for CW consisted of two 6L6 tubes. The accompanying modulator used four tubes, two push-pull 6L6’s along with a 6F6 and 6CF serving as audio preamplifiers.
The transmitter was very compact, with the RF portion and modulator each mounted in 14x7x8 cabinets.
The author stressed the importance of care in winding the oscillator coils, and noted that some experimentation might be necessary to get them right on frequency.