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3225 50M crystal Crystal oscillator 
This transistor can be modernized by replacing the transistor for the old BC-221 BC-221 frequency meter with three now scarce conduits and four 2N3819N channel FETs and changing the power supply to make the power supply a single-section 9V battery. . The VT167 (6K8) mixing oscillator is replaced by two FETs and R2, R3.