High Speed Digital to Analog Converter (CB5170E)

This 8-bit converter was found in an American 1980s documentation. Motorola components are uncommon today. The circuit serves as a reference.

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Electronic Micro Organ (CB4440E)
This circuit, which uses only common transistors, was obtained from a 1988 publication, but can be...
Multi-Pass Filter with Multiple Feedback MC1776 (CB4499E)
The integrated circuit used in this filter is not very common today, but the configuration can be implemented...
Two-Channel Mixer (CB23869E)
Published in Radio Electronics magazine in March 1963, this circuit uses 4 transistors of the...