We found this parking light circuit for automotive use in a Texas Instruments optoelectronics documentation. The Darlington transistor can be replaced by others in the TIP line.
This wideband circuit with the 4046 PLL was found in the December 1989 Radio Electronics magazine. The...
This 1 kHz circuit was found in American documentation from the 90s. The original operational...
This circuit measures temperatures from +5 to + 300º F using a sensor from National Semiconductor not very...