9 V to 5 V converter LT1175 (CB14616E)

We found this circuit in the 1997 Linear Technology Applications. The components used were common at the time.

Giro Counter (CB19870E)
This circuit makes use of an integrated LM2907. The circuit is from an old documentation being...
Signal Follower with the LM386 (CB12344E)
This sensitive signal follower with an LM386 integrated circuit can be used in both audio and RF...
Short Range CW AM Transmitter (CB14737E)
This transmitter, found in Raytheon documentation from 1957, has a range of a few meters. L1 can...