Electronic manipulator (CB8981E)

This circuit was obtained in a 80s American documentation for radio amateurs. The circuit produces a pulse of constant duration for dots and dashes.

| Clique na imagem para ampliar |

Symmetric Power Supply (CB16761E)
This power supply was originally created for the CB16760E (Loudness System) but can be used in any...
Unidirectional motion sensor (CB7281E)
Found in 1980s Electronic Engineering, this circuit uses common phototransistors as sensors. The...
Simple Symmetrical 6 V Power Supply (CB20207E)
This simple, unregulated power supply with an approximate 6 V output voltage can supply currents up to...