30 MHz Amplifier (CB5939E)

This low noise circuit was obtained from a 1980s US RF publication. Transistors used are uncommon today and the gain is 19 dB..

| Clique na imagem para ampliar |

Non-Inverting Amplifier (CB20172E)
This amplifier circuit for instrumentation was found in the manual of the used integrated circuit...
Headphone amplifier (CB23605E)
We can use this amplifier with low impedance headphones with good performance. Possible...
Stepper Motor Control 4204B (CB25245E)
This circuit was obtained from the November 1989 issue of Radio Electronics magazine. The circuit is...