This 9-bit DAC circuit was found in the RCA CMOS integrated circuits manual of the 1970s. The circuit operates at 15 V and consumes between 70 and 200 mW. The currents at each outlet are approximately 400 uA.
Found in an American publication from 1968, this circuit generates pulses at a rate of 2,500 per...
The transistors on this circuit can be the BC548. The circuit is from English documentation from...
In the figure we have a stereo decoder from the 70's with pilot lamp for signal indication. The...