The ZN416E integrated circuit is uncommon today. It consists of a complete radio, like the one found in a 90s Popular Electronics. The power is from a single battery.
The TBA810 integrated circuit used in this 1982 project is not very common today, but if found it...
Following the American FCC rules, this 90s Radio Electronics circuit shows how to use a...
Este circuito oscilador TTL intermitente simples produz um tom quando acionado. O circuito deve...