126 MHz Logic Probe (CB21195E)

This logic probe was found in a Popular Electronics from the 90s. The circuit is TTL and must be powered with 5V.

| Clique na imagem para ampliar |

Modulated light receiver (CB7846E)
This circuit is indicated to function as a receiver of the previous circuit. The circuit is from...
Modulated ultrasound transmitter (CB22128E)
We found this circuit in an old English publication. Transistors are general purpose and the block...
Transistor Bargraph (CB4577E)
This circuit is from a 1995 publication. The components are all common and the number of LEDs may...