12AX7 MODULATOR UNIT UTILIZING PRINTED CIRCUIT TECHNIQUES
A.D. Middleton, J.M. Stueber · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1958
A low-power modulator for mobile work or for modulating a small transmitter of any type is described. It can modulate r-f plate inputs up to nearly 20 w, depending on the plate voltage available. (auth)