Clocked Flip Flop 7400 (CB22413E)

This TTL circuit uses 5 NAND gates of 7400 integrated circuits. It must be powered with 5 V.

Fast Photosensor (CB15907E)
The configuration shown in the figure is suggested by Texas Instruments and supports equivalent...
Voltmeter LM4250 (CB14177E)
We found this circuit in the Linear Applications Handbook of the National Semiconductor of 1994....
Hall sensor oscillator (CB7811E)
This circuit uses a Hall sensor in the feedback of signals that produce oscillations. The circuit is...