3-Bit A-D Converter (CB14253E)

This circuit was found in the Linear Applications Handbook by National Semiconductor. It uses common comparators to provide 3-bit TTL output.

Noise generator (CB8226E)
Found in a 90s Elektor, this circuit makes use of general-purpose transistors, except T4 that can...
Comparator with Hysteresis LM139 (CB4007E)
This circuit, from the 1990 Motorola Dataar Databook, can use any LM139 series comparator. The circuit...
Test Circuit for FETs (MSB065E)
The circuit in figure 1 is a dynamic test for FETs. The characteristic of a FET is displayed in...