Found in a 90s ARRL Handbook, this circuit is intended for the production of signals in the side bands for transmission in SSB.
Found in an October 1992 Radio Electronics magazine article, this circuit generates a low-power tone in...
Found in a 1980s documentation, this amplifier features high common mode rejection. The operating...
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...