Who is the fast (CB9809E)

This simple TTL circuit indicates which was the first to press one of the four pressure switches. The circuit must be powered with a voltage of 5 V.

| Clique na imagem para ampliar |

Magnetic field meter (CB7067E)
Found in an EDN from the 80's, this circuit makes use of an operational one of the time. The...
Pulsed Siren 4093 (CB11475E)
This circuit can either directly supply a piezoelectric transducer (BZ) or a stage with a...
Commercial Reflex Receiver (CB958E)
Only for reference this is a circuito f a commercial receiver of the year 1958. The circuit uses...