This variable 1 A power supply with voltages up to 30 V was found in an article in June 1986 Radio Electronics magazine. The 723 IC is well known to magazine readers of the time and even today.
Using the On Semiconductor NCS2200 voltage comparator this 2019 circuit was obtained from the...
A solution for using more than 6 channels in a tone-modulated system that uses LM567 as decoders, is to...
This circuit has a programmable alarm that can be triggered with different water levels. The...