This circuit was found in the November 1974 Radio Electronics magazine. The voltage depends on the supply and the timings of R1 and R2 as well as C1 and C2.
This simple clock can be used to generate signals up to 100 kHz, depending on the crystal. We found...
Found in a Popular Electronics from the 90s, this circuit transforms an ordinary oscilloscope into a...
This circuit is from a 1967 documentation. The circuit uses germanium transistors and has an...