A HIGH-GAIN SINGLE TRIODE 400-MEGACYCLE MIXER OSCILLATOR

摘要

This report describes work being done towards extending the frequency-operating range of a single-type triode mixer oscillator from around 100 mc and below to 400 mc to permit its use us part of a superheterodyne radiosonde receiver. Evaluation tests of breadboard models of the circuit showed satisfactory operation at 400 mc. A power gain of 1.9 db through the unit was obtained. Test procedures used and various problems encountered are explained, and circuit sche¬matics, bridge diagrams, and associated information are included.