This is the transmitter for a remote-control system published in the August 1986 issue of Radio Electronics magazine. The circuit uses two 555 CMOS transistors to drive two series LEDs.
May 2017 - Mouser Electronics is already in stock with the new BCP1395 transistors from Nexperia....
Figure bellow shows how the 4088 or 4018 can be used as a touch switch. Two metal plates separated by 1 mm...
This conventional configuration for TL series amplifiers is from Motorola's 1993 Linear Interface ICs....