This circuit was found in an Electronic Design from the 90s. The circuit uses a type J thermocouple that can measure from -50 to + 100º C. Power is provided by a 3 V lithium battery.
This circuit was found in a publication by Gernsback from 1960. The circuit generates signals from...
This oscillator has the output sine waveforms stabilized by a MOSFET. Equivalent types can be...
This circuit that uses components that are still very common on the market was obtained in a 1997...