Found in an Elektor from the 90s, this TTL circuit can be used as a shield without any bouncing problems. The circuit must be powered with 5 V.
This circuit allows you to read temperatures with a common digital voltmeter. We found it in the...
Found in American documentation, this amplifier stage has unit gain and a high input impedance. It...
This circuit is from an old American publication, using transistors of the time and operating with a 48...