AD converter with LCD display (CB9025E)

This circuit was obtained in Teledyne documentation from the 70s. The converter component is uncommon today.

| Clique na imagem para ampliar |

JFET Tone Control (CB20011E)
The use of field effect transistors in this circuit improves its performance. This configuration is from a...
Photo Relay with the 2N3055 (CB12035E)
Carefully removing (and a lot of work) the cover of a metallic 2N3055 to expose its joints it...
Bicycle Horn (CB6488E)
We find this power oscillator circuit in a 90's Popular Electronics. The circuit can be powered by...