1976 6-Digit Clock (CB24419E)

This commercial 6-digit clock circuit was found in August 1976 Radio Electronics magazine. Note the supply voltages and the use of a period module.

| Clique na imagem para ampliar |

Simple field strength meter (CB4114E)
The more sensitive the instrument used the better the sensitivity of the indicated meter. We...
Telephone dialing simulator (CB8658E)
Based on the 4017 integrated circuit, this circuit of a European 303 Circuits from the 90s,...
White Noise Generator (CB19614E)
The integrated circuit used in this project is unusual and it includes internal transistors that...