555 Interval (CB20659E)

This simple windscreen wiper interval was found in old American documentation. The relay must have contacts of at least 2 A.

| Clique na imagem para ampliar |

Preselector with JFET (CB9170E)
This circuit was found in a Popular Electronics from the 90s. The circuit uses a general purpose...
100 Hz to 400 kHz oscillator (CB9051E)
This simple oscillator with two general-purpose transistors has its frequency given by capacitor...
PUT neon shutter (CB6686E)
This circuit was found in General Electric documentation from 1964. It makes use of a PUT, called the...