Using the MC3335P low power narrow band FM receiver can be designed a very simple 80m SSB receiver circuit using few electronic parts.
The 80m SSB receiver circuit is very simple, requiring few external components and it includes a simple audio power amplifier based on a LM386 audio IC .
This long range FM transmitter electronic project is a very simple and powerful transmitter circuit with a range up to 1 kilometer in open air.
This long range FM transmitter uses an RF transistor in its output stage and two BC547’s for the first two stages.
The circuit is basically a radio frequency oscillator that operates around 100 MHz.
This antenna amplifier is very useful for 35kHz-150Mhz frequency band . This antenna amplifier circuit is based on transistors and has a low 3dB non-linearity and a high gain of 43 dB .
The input and output impedance for this rf amplifier circuit is 75 ohms.