This circuit is from a 1975 RCA tube manual. It appears elsewhere on the site. R5 depends on the voltage of the amplifier with which it is used and can be changed.
Found in Motorola documentation from the 1980s, this circuit employs an integrated device from...
This circuit, from a 2001 documentation, appears elsewhere on this site. Its purpose is to obtain a...
This 9-bit DAC circuit was found in the RCA CMOS integrated circuits manual of the 1970s. The...