7MHz Transmitter with AVR Soft-keyer
In my last post, I went over the design of a Colpitts crystal oscillator design that put out a moderately clean 7 MHz signal. In order to match the output
Tag: cw
7MHz Crystal Oscillator Design
After constructing a 40m wire dipole that works with my SDR setup, I needed to start working on a transmission system. At the heart of virtually any RF system lies
Pixie: 40m QRP CW transceiver
first post of 2015. it’s a small pocket size 40m CW transceiver that i got off of eBay for a mere $8. i’ve mainly used this while i’m at school
simple phase shift oscillator…
a practice in designing an oscillator. this particular circuit employs a 2N2222A transistor on 6 volts. i used this Electronic-Tutorials.ws page to design the circuit. there were many reasons for