05-18-2011, 08:04 PM
Your pic doesn't show the speaker, just the bottom. The thing on top of the speaker is the output transformer. The field coil is at the back of the speaker where the magnet would be on a PM speaker.
Terry
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry