This circuit was found in a Texas Instruments documentation from the 1980s. The circuit monitors engine temperature by warning of engine warm-up and warning when the fan is on.
This more sophisticated version compared to the previous one in this section was also found in 90s...
This counter was found in the November 19983 issue of Radio Electronics magazine. The power supply...
This transistor amplifier from the 1950s had gain of 10. The circuit is from Radio Electronics, from the...