Digital tachometer (CB7376E)

Found in Radio Electronics from the 90s, this circuit uses components from that time. However, it can still be elaborated with some ease.

| Clique na imagem para ampliar |

15 V x 1 A Power Supply Using the LM723 (CB862E)
The output voltage is adjusted by the trimpot. The power transistor mist be mounted on a heatsink. The 3.9...
Simple MW Radio (CB4359E)
Originally, this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...
Retriggerable Monostable Using the 4047 (CB136)
The previously mentioned versions of monostable multivibrators in this section are not...