Sequential without integrated (CB6768E)

This circuit is from a 1967 publication and applies to incandescent lamps up to 600 W. Triacs must be fitted with heat sinks.

| Clique na imagem para ampliar |

40 to 60 MHz divider by 2, 3 and 4 (CB13730E)
This circuit is from an old American publication. It divides a 40 to 60 MHz TTL signal by integer...
TTL Optical Receiver For Data Link (CB918E)
The SN72741 integrated circuit is nothing more than the version of Texas Instruments of the known...
Two frequency oscillator (CB8059E)
Found elsewhere in this section, but from other sources, this circuit is from a 1964 Electronic...