Universal speed control (CB20783E)

This control, which may appear in other versions on this site, was found in documentation from the 1970s. SUS is an uncommon component today.

| Clique na imagem para ampliar |

Bipolar Digital Amplifier (CB25627E)
This high-gain digital amplifier uses general-purpose transistors. The supply voltage is logic...
Alternative RIAA Equalizer (CB25698E)
We found this circuit in the March 1993 issue of Electronis Now magazine. The circuit uses common...
Precision Light Activated Alarm (CB26240E)
Using an LDR as a sensor and an operational amplifier this circuit was found in the Encyclopedia of...