PROM CW IDENTIFIER


Posted on Feb 6, 2014

Call letters stored in 8223 PR0M U3 drive 74151 multiplexer/data selector U4 for keying NE555 audio oscillator U5 which feeds transmitter mike input through RA. Timed holdoff keeps identifier from being rekeyed within spedfied time period, with reiden. tifying at end of period. Article covers operation of circuit and gives construction and programmi


PROM CW IDENTIFIER
Click here to download the full size of the above Circuit.

ng details, ID with a PROM, 73 Magazine, Nov, 1976, p 90 92.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Stamp9G20
    remote control circuit
    Positive Voltage Reference Circuit
    lm1881 video sync for tv and lcd monitor separator
    temperature sensor relay switch circuit
    SOLID STATE TESLA COIL
    A typical DVD switching power supply circuit



    Top