ve7gc popcorn rf preamplifier circuit


Posted on Feb 4, 2014

Right here is definitely an simple VE7GC Popcorn RF preamplifier by Dick Pattinson. The circuit utilizes a single tuned circuit at the front end and can connect straight to a mixer or product detector in a simple receiver project. Note how Dick provided adjustable RF gain control for this circuit in his Wee Willy project on this web page. In case


ve7gc popcorn rf preamplifier circuit
Click here to download the full size of the above Circuit.

you can not get Tak Lee green 10. 7 MHz IF coils, most likely any other brand of 10. 7 MHz slug tuned IF transformer would do the job. The Mouser catalog number is 421F123. In case your 10. 7 MHz IF coil has a built in capacitor at the base, take it out. A fixed inductor may also be wound applying a powdered iron torroid core and then all or a portion of the C1 capacity would be designed variable. The input impedance is 50 ohms and the output impedance is low because of the Q2 emitter follower stage. The power supply with voltage of 12V is needed to operate this circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Voltage Controlled Panner
    High power control for sensitive contacts
    Reaction Timer
    DIY IRF610 MOSFET Class-A Headphone Amplifier Project
    24V Battery Charger Schematic
    Low Battery Indicator II
    Two-channel Analog-to-Digital converter board with USB interface
    455 kHz IF WITH AF COMPRESSOR
    Car Alarm Simulator
    Two Simple Thermistor-Controlled Relay Circuits
    Low drift integrator



    Top