راديو با ترانزيستور 2n2222

سلام اين راديو تماما با ترانزيستورهاي 2n2222 كار مي كند اين هم تنوعي است

This is the schematic diagram of the receive strip. Note that in two locations, you can use an additional trimmer

capacitor to replace a fixed capacitor. This change will enhance performance by a few dB, especially of the fixed inductors are off a bit due to normal tolerances. Transformer T5 is part of the single balanced receiver mixer, and is balanced for the LO signal, minimizing feedthrough of this component. The desired 7 MHz output signal is filtered by the series resonance of L3 and C16. LO schematic The schematic of the local oscillator section. TC1 is adjusted so that the crystal oscillates at 14 .333 MHz.

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