We found this circuit in the 1989 Radio Electronics Experimenter. The circuit uses common components, and the thermistor is supposed to determine the value of the trim potentiometer.
This echo or reverb chamber circuit uses a delay line well known at the time it was published...
This ouput push-pull stage using bipolar transistors was found in a publication of the year 1968....
September 2106 - Mouser Electronics already has in stock the new LDOs (Low Drop) from Infineon for...