This is a power stage that we found in a publication from 1942. It is just an output step serving as a boost, for example, for smaller radios or other signal sources. The circuit needs power supply with the indicated voltage.

This is a power stage that we found in a publication from 1942. It is just an output step serving as a boost, for example, for smaller radios or other signal sources. The circuit needs power supply with the indicated voltage.