We found this circuit in an Electronics Now magazine from June 1995. The transformer has a primary according to the network and a secondary of 6 to 9 V with 100 mA.
We found this circuit in an old documentation. The integrated circuits used are specific to...
The integrated circuit used in this application is uncommon today and specific to the application, as it...
This 3-transistor buzzer or buzzer is a classic type found in the July 1998 issue of Electronics Now...