5V Calibrator (CB20759E)

This circuit generates a 5V rectangular signal. The circuit is suitable for calibrating TTL circuits. We found it in an old American documentation.

| Clique na imagem para ampliar |

Receiver without Power Supply (CB3838E)
The signal itself captured by the (long) antenna serves to feed this simple experimental circuit....
Voltage Level Switch (CB21463E)
This voltage level-triggered circuit was found in a 1969 Ferranti English documentation. Modern...
10 W amplifier TDA2006 2 (CB15243E)
This amplifier makes use of a simple 12 to 30 W source, having been found in the SGS manual of...