2Meter Converter


Posted on Dec 5, 2012

This converter enables a receiver that tunes 28 to 32 MHz to receive the 144- to 148-MHz amateur band. A BF981 dual-gate


2Meter Converter
Click here to download the full size of the above Circuit.

MOSFET provides RF gain and feeds mixer T2, another BF981. T3 is a 116-MHz crystal oscillator used to provide L.O. injection to T2. Coils are wound on a 6-mm form. LI, L3, and L4 are 8 turns of 1-mm diameter silver-plated copper wire. L2 is 4 turns of 0.2-mm wire through a ferrite lead. L6 has 19 turns on the primary and 3 turns on the secondary.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Circuit Magic
50 Watt Amplifier
Digital Stopwatch 0-60sec
DS Protocol (Data transfer via handshake)
9 V NiCd or NiMH accumulator charger
Z80 clock circuit
digital thermometer with data
12VDC to 230VAC 60W Inverter Circuit
video turret
stepper motor controller schematic
garageshed alarm
STI5211 Low-cost HDTV Satellite Set-top Box Decoder For Microsoft VC-1 H.264 And MPEG-2
Electronic Canary Circuits
Negative Auxiliary Voltage
Atari Punk Stepped Tone Generator
The STA013 MP3 Decoder Chip
Color Sensor from a Reversed LED and Op Amp
XR-8038 precision frequency generator



Top