10W Amplifier with 6 tuber (T492E)

We found this 6-tube amplifier in a 1947 publication. It is a Public Address amplifier with excellent performance using triodes on the output.

| Clique na imagem para ampliar |

5 W Stereo FM Transmitter (CB16870E)
This circuit was obtained in a 1994 documentation. The assembly is very critical, and the circuit...
5 W TDA1905 Amplifier with Simple Tone Control (CB15224E)
This circuit has a two-position tone control providing a power that reaches 5 W. The supply...
Variable High Q Filter with the 741 (CB13604E)
This circuit was found in a 1973 publication. With the components indicated, the range can be from...