Found in the August 1994 issue of Electronics Now, this CMOS circuit uses the 4046, which is uncommon today.
This circuit is from a Radio Electronics magazine from August 1990. The circuit uses components from the...
The circuit we show is part of an article that taught its complete assembly. The article is from...
This ultra-simple polarity indicator uses common green and red LEDs and can work with 3 to 9 V...