Perforated tape reader (CB7417E)

Found in General Electric documentation from the 1980s, this high speed perforated tape reader circuit has a maximum speed of 2000 bits per second.

| Clique na imagem para ampliar |

Two conventional 78xx power supplies (CB25958E)
This circuit appeared in the June 1990 issue of Radio Electronics magazine. Integrated circuits must...
SCR Photosensor (CB16109E)
Lockout shooting, due to the incidence of light, can be achieved with the circuit in the figure. In...
Galena with FET Preamplifier (CB10212E)
This circuit can function either as a crystal or galena receiver with a pre-amplifier using a FET...