TV Modulator (CB20773E)

This circuit for the VHF band of analog TV was found in Motorola documentation from the 70s. The integrated circuit used is uncommon today.

| Clique na imagem para ampliar |

Triac Control Shield (CB4247E)
We found this circuit in the semiconductor ON manual using couplers of the time. These components...
Simple LED VU (CB18060E)
VU or Volume Units is a sound intensity indicator that can be installed on any stereo. The...
10 Hz Low Pass Filter (CB1465E)
This circuit was originally designed for medical applications and biological experiments. The...