Vermes
Advanced Member level 4
This device is a prototype of a potentiometer on relays and CMOS integrated circuits.
6 relays adjusts the intensification between 0 an -64dB (64 positions). By adding a counter, decoder, display and 2 relays, the range can be enlarged to 7 or 8 bits.
Usage:
Link to original thread (some useful attachments) - Potencjometr cyfrowy R-2R na przekaźnikach bez PIC