This TTL time base for 60 Hz or 50 Hz can be used in instrumentation circuits or even with microcontrollers, serving as a precision shield. The circuit is based on 7400 NAND ports and two transistors.
This low hysteresis circuit was obtained from old documentation. The circuit must be powered by a...
This transmitter has a few watts of output power, having been found in a 1997 documentation. L1...
The integrator in the figure is characterized by low input current and is based on an LM101A. C1...