Solar charger MC34064 (CB14537E)

The integrated circuit used in this charger is not very common today. The circuit is from Motorola's 1990 Linear Databook.

Instrumentation Amplifier (CB13412E)
This circuit has a very high input resistance to excite a 0-1 mA indicator instrument. The FET...
100 MHz frequency meter ICM7216 (CB15370E)
The integrated circuits used in this configuration are not common today. The circuit is from the...
Guitar Preamplifier using the 741 (CB4429E)
The circuit shown uses the 741 operational amplifier, but lower noise and higher gain equivalents...