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 |

Direct shield for triac (CB5185E)
This shield circuit was found in an American publication from the 80's. The triac is of low...
Variable Frequency Oscillator (VFO) (CB13087E)
The Variable Frequency Oscillator (VFO) shown in the figure can generate signals in a frequency range...
Sinusoidal descrambler (CB6198E)
This circuit was obtained from an 80's Radio Electronics. The circuit decodes “scrambled” or...