We found this circuit in an 80's manual. The same configuration can be adapted to make use of modern operational amplifiers. The power supply is symmetrical.
This circuit uses a general-purpose transistor and has waveform adjustment. We found it in an...
This 1 kW circuit was found in documentation from the 90s. The sensor is a thermistor, and the...
The purpose of this modified astable is to make the initial pulses have the same duration as the...