This circuit for the 40 MHz band was published in Radio Electronics magazine in December 1957. Its purpose was to monitor the signals of the Russian satellite launched at the time.
Twin-T oscillator are designed to produce sine low frequency signals. These oscillator are...
Found in na 1970 EDN this circuit has a parallel regulation providing a symmetrical output of 15 V....
This circuit was found in an Electronic Design. It makes use of a relaxation oscillator to trigger...