This simple 3-tube circuit is typical of the era. We found it in a 1945 publication. The power is around 2 W being used in low-cost portable record players. Power comes directly from the power grid.

This simple 3-tube circuit is typical of the era. We found it in a 1945 publication. The power is around 2 W being used in low-cost portable record players. Power comes directly from the power grid.