This type of logic is no longer used today. The circuit is from an old American publication and the integrated circuit is uncommon today. Diodes are general-purpose tpes.
Using a CA3130 and a power transistor, this circuit can deliver a current of up to 500 mA with the...
Rechargeable Nicad batteries type AA, C or D can be recharged with this circuit, which is nothing...
We found this circuit in a 1977 CMOS oscillators documentation. The power can be sourced with...