4 sequence pulses generator (CB9254E)

Found in American documentation from 1969, this circuit uses logic inverters to obtain sequences of 4 pulses. The circuit can be used as a shield.

| Clique na imagem para ampliar |

60 kHz 60 MHz sweep generator (CB3953E)
This simple sweep generator circuit has been found in older documentation, but can still be easily...
30 to 45 MHz Receiver (CB20514E)
Used by the police this receiver tuned to the low VHF band. The circuit is from a documentation from the...
LDR dark switch (CB8255E)
This circuit was found in a 1967 Ferranti documentation. It takes the transistor to the conduction...