This circuit was found in an article in Electronics Now magazine from March 1997. The transistors are general purpose, and the indicator is a 1 mA full scale analog type.
Found in a 90s Electronic Design, this circuit operates with Maxim components of the time. The...
This circuit can be used both as a power source and as a battery charger. The resistor R1 serves as...
This circuit uses a unijunction transistor in a different configuration to generate rectangular pulses at...