• Amplifier

    From bob klahn@1:124/311 to ALL on Tuesday, March 16, 2010 22:12:00

    This is the schematic for the old ICM SAX-1 RF amplifier.
    Don't ask me why, I was just playing around with it and decided
    to turn it into a text file. Reverse Engineered by me.
    I accept no responsibility for anyway the user may screw things
    up.


    +
    _______________|
    | | o
    = .01 | Link Output
    __|__ | o
    / / / | |
    ________ | |
    | ( | |
    | L1 ( R10K |
    = C1 ( | |
    | _ ( | |----|
    | ) (---------||---|---| PN5130 (2N5130)
    | _) (____ .001 | |--->|
    | Input | | |________
    | Link | R3.3K | |
    | |_________| R470K = .01
    | | | |_______|
    __|__ __|__ __|__ __|__
    / / / / / / / / / / / /


    All wire crossings are connections.
    F mhz - C1pf - Link Turns
    White 2.3-3.4 220 4
    Coil 3.2-4.8 100 4
    4.5-6.8 47 4

    Yellow 4.2-6.1 220 3
    Coil 5.4-8.5 100 3
    8.5-13 47 3
    13-20 18 2
    20-27 10 2

    Aprox Inductace
    White Coil 11-77 uH
    Yellow Coil 3-8.5 uH

    Freq tuned by adjusting coil.
    High L at low Freq for each Cap.
    Low L at high Freq for each Cap.




    BOB KLAHN bob.klahn@sev.org http://home.toltbbs.com/bobklahn

    ... Cats have fur coats since they look positively stupid in windbreakers.
    * Silver Xpress V4.5/P [Reg]
    --- Platinum Xpress/Win/WINServer v3.0pr5a
    * Origin: FidoTel & QWK on the Web! www.fidotel.com (1:124/311)