Sparton rebuild

[mashaffer]

Thanks for the interest. Do you know any good sites where I could get a little history of Sparton gear?

I think this one has been heavily modified as the manual refers to the controls in terms of left and right as if front mounted and this one is on top and has no markings for the controls.

It has a very interesting and clever self inverting strategy which seems to take the signal impressed on the screen supply of one output tube to drive the grid of the second one.

mike