Product detector (CB9684E)

Found in Motorola documentation from the 1980s, this circuit employs an integrated device from that time, which is unusual today.

| Clique na imagem para ampliar |

Digital Voltage Reference (CB24682E)
The reference voltage for this circuit can be selected digitally. The circuit is from Radio...
RC coupling stage (CB21791E)
This basic circuit for a germanium transistor at the time was taken from a Mullard Manual from...
Square Root Extractor (CB25585E)
Found in the July 1993 Electronics Now magazine, this circuit provides an output voltage whose...