This is yet another balanced modulator circuit for SSB transmission. This two-diode circuit was found in a 1980s documentation. The diodes are commonly used.
This circuit is from a 1968 Electronic Design. The circuit uses transistors of the time that can...
Found in an 1989 R-E Experimenters Handbook, this circuit produces several sound effects that can...
This circuit was obtained from Radio Electronics from the 90s. The infrared sensor is of an...