We found this circuit in a Maxim documentation from the 90s. The 4-channel circuit uses a component of the time and has a supply current of only 6 uA.
The CK722 transistor used in this circuit is one of the first commercial types in the world. The...
This automatic dimmer for incandescent lamps was found in a European publication from the 1980s. The...
This traditional doubler configuration with the 555 can be found in other articles on the author’s site....