H Bridge Current Monitor (CB5393E)

We found this circuit in a 2005 Linear Technology manual. Observe the component values and operating current range.

4-Quadrant Digital Multiplier (CB24749E)
We found this circuit in the May 1983 issue of Radio Electronics magazine. The integrated circuits are...
2.5 W Transistorized Amplifier (CB1316E)
This amplifier with complementary symmetry output and good sound quality was found in...
Elementary Amplifying Stage (CB12912E)
Any general purpose PNP transistor such as the BC558 can be used on this circuit from an old...