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.
This circuit of a 1991 PE Hobbyst Handbook allows the brightness of the incandescent lamp to be...
This circuit is from the old RCA transistors manual of 1964. The transistor can be the BC558 and...
Originally this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...