In this oscillator circuit using 3 TTL inverters we have all the conditions for the frequency calculation. Power must be supplied with 5 V. The circuit is from an American TTL documentation.
This circuit was found in an Elektor from the 90s. The integrated circuits are not very common...
This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be...
This negative resistance circuit was obtained from a 1969’s American documentation. It can be made...