TV Modulator (CB20773E)

This circuit for the VHF band of analog TV was found in Motorola documentation from the 70s. The integrated circuit used is uncommon today.

| Clique na imagem para ampliar |

Two Power Loads by One Cable Control (CB19044E)
This interesting control circuit was found in an Electronics Now from 1988. Through it we can...
Random Neon Flasher (CB13583E)
This circuit causes neon lamps to flash randomly from a low voltage supply (1.5 to 3 V). The...
Relaxation with Operational (CB15020E)
Any operational amplifier, like the 741, can be used on this oscillator whose frequency depends on R1...