3-channel preamp (T484E)

This 4-tube circuit was found in an American publication from 1947. It is intended for audio distribution lines using a transformer source.

| Clique na imagem para ampliar |

LM290xAQ Operational Amplifiers (COM011E)
It can be obtained from Mouser Electronics the new LM290xAQ operational amplifiers from Diodes...
Full Comparator (CB6548E)
Applying an operational of the time, this circuit of an old documentation can be elaborated with modern...
Resistive Touch Screen FT Series
June 2017 - The new touch screens with resistive sensors of the FK Series from NKK Switches can...