Based on National Semiconductor's LM4130 reference circuit, this circuit was found in Internet documentation. The circuit has an output impedance of 1 Mohm.
Found in a publication from the 60's, this circuit uses the CK722, germanium transistor of the...
From an input signal, and using an unusual current source, this circuit generates a ramp, that is, a...
With this timer we can start between 30 seconds and one and a half seconds, time set in the pot....