LASER Driver (CB21008E)

We found this circuit in an American publication from the 1990s. The circuit has a Darlington stage to drive a high-power LASER diode.

| Clique na imagem para ampliar |

Light change detector (CB22058E)
This circuit only detects variations in light falling on the sensor. The circuit uses an LM380 as a...
Locking circuit with the LM3909 (CB14294E)
This latched switch configuration was obtained from National Semiconductor documentation on the...
Wheel of Fortune (CB20962E)
This electronic roulette circuit with 10 numbers was found in a Popular Electronics from the 80s....