This is a simple tubed mixer from the 50's. The circuit does not include the power supply and has 3 inputs with independent controls. The tubes are double and the inputs are high impedance.
This remote control for resistive loads using a triac appears elsewhere on this site. The circuit...
Although it was found in a British magazine 1976, this circuit can be easily upgraded with the...
March 2017 - Texas Instruments is already making available through Mouser Electronics the LP5907 an...