Note
QST, Dec 1946, p. 91. (Designed for use with the 30K)
QST, Feb 1947, p. 127. (310A-1)
310A-3: 1948
Collins developed the 310A as an exciter for their 30K transmitter or home brew high-power rigs. The band-switched exciter covered 80-10 meters and frequency was controlled by a 70E-8 PTO. Its output tube was an 807 and it had an internal power supply.