This circuit for photography uses was found in the Electronics Experimenter Handbook Special projects magazine from 1983. The bargraph circuit powers 8 LEDs.
Similar to other circuits found in this section, this circuit is from a 1996 Electronics World;...
This circuit is an improvement of the previous one, with the use of two transistors produces a...
This small receiver for the medium wave range was found in a Japanese documentation from 1961. The...