Band 2 Preamplifier


Posted on Feb 6, 2014

The circuit uses two 2N3819 FET`s in cascode configuration. The lower FET operates in common source mode, while the upper FET, operates in common gate, realising full high frequency gain. The bottom FET is tunable allowing a peak for a particular station. Coil details follow:


Band 2 Preamplifier
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