Found in an 80's Electronic Design, this circuit is based on the ICL7107 which is not an easy component to obtain today. The circuit is compatible with TTL and CMOS.
The advantages of using Schmitt Inverters (74108) or Schmitt NAND gates (4093) in oscillators lie...
We found this circuit in an old American manual. The formulas allow the gain to be calculated as a...
With this circuit, from an Argentine publication from 1973, 12 V continuous output can be obtained...