This Intersil circuit was found in a 1980s documentation. Operational are of the time, but current equivalents can be experienced. The graph with the circuit performance is given next to the diagram.
This type of circuit, even with the same configuration, appears several times on this site. The...
This circuit is a wireless temperature transmitter for RF signals in the range of 0.2 to 2 MHz...
We found this circuit in a 1992 Poptronics. What it does is to activate LEDs sequentially,...