Found in a 90s Elektor, this circuit makes use of general-purpose transistors, except T4 that can be replaced by an equivalent.
This circuit is from Mullard documentation from 1969. Transistors support current equivalents. Output...
This circuit or practical idea comes from a time when cheap solar cells were not available (1992). What is...
From an input signal, and using an unusual current source, this circuit generates a ramp, that is, a...