This TTL delay circuit has long delay times which can be determined by R1 and C1. The base is in common TTL and Maxim's MAX907.
This sensitive touch key appears on this website from other sources. This version was taken from a...
This nonlinear gain circuit was found in a 1965 Electronic Design. The configuration can be used...
CMOS 4046 (PLL) is not very common. In this circuit it generates short pulses to excite a high...