•  
  •  

Simple IF Signal Generator

Here is a versatile circuit of IF signal generator which may be of interest to radio hobbyists and professionals alike.Transistors T1 and T2 form an astable multivibrator oscillating in the audio frequency range of 1 to 2 kHz. RF oscillator is built around transistor T3. Here again a 455kHz ceramic filter/resonator is employed for obtaining stable IF. The AF from multivibrator is coupled from collector of transistor T2 to emitter of transistor T3 through capacitor C3. The tank circuit at collector of transistor T3 is formed using medium wave oscillator coil of transistor radio, a fixed 100pF capacitor C5 and half section of a gang capacitor (C6).

The oscillator section may be easily modified for any other intermediate frequency by using ceramic filter or resonator of that frequency and by making appropriate changes in the tank circuit at collector of transistor T3. Slight adjustment of bias can be affected by varying values of resistors R6 and R7, if required

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

Hurco MAX32 Ultimax 3 Intel Multibus CPU Board AA 510104-008 PBA 511832-007
$750.0 Hurco MAX32 Ultimax 3 Intel Multibus CPU Board AA 510104-008 PBA 511832-007 picture
Sonics & Materials Microsonic Processor Plastic Welder EO 1500 MC1090
$750.0  Sonics & Materials Microsonic Processor Plastic Welder EO 1500 MC1090  picture
Allen-Bradley SLC 500 1747-L552 series D processor unit
$3500.0 Allen-Bradley SLC 500 1747-L552 series D processor unit picture
USED WORKING ALLEN BRADLEY 1785-L60B PLC-5/60 PROCESSOR MODULE REV C SER C
$285.0 USED WORKING ALLEN BRADLEY 1785-L60B PLC-5/60 PROCESSOR MODULE REV C SER C picture
Karl Storz 202020 20 Digivideo Endoscopy Video Processor control unit
$395.0 Karl Storz 202020 20 Digivideo Endoscopy Video Processor control unit picture