Original 2N2/40 Schematic Diagrams

Posted on Feb 6, 2014

This is the remainder of the receiver, including the post mixer amplifier, variable crystal filter, i. f. amplifier, product detector, local oscillator, receiver muting, and audio amplifier. The transmit section, showing the local oscillator, Tx single balanced mixer, transmit r. f. amplifier, driver, final amplifier, and output lowpass filter. The f

Original 2N2/40 Schematic Diagrams
Click here to download the full size of the above Circuit.

inal uses 3 parallel connected 2N2222As in metal cans. Good heatsinks are required. Additional small, but important, pieces of the transceiver design, which include the Rx/Tx driver, the receive T/R switch, power input circuitry, and the receive r. f. amplifier gain switch.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Motor Speed control with optocoupler
    de amst wiskar: robot line folower
    Crystal Oscillator Circuit
    H bridge switch for small motors
    Soft Musical Telephone Ringer by UM66T
    Doorbell with IC555
    Frost Alarm
    52W SMPS AC-DC Adapter
    6 static display circuit