Selector Dial settings, Radiola 26. Tracking between them is not perfect, but pretty darned close!
Battery compartment before repairs
Measured current draw: +A-4.5V approx 330ma, depending on battery and volume +B-45V 2ma +B-90V 10ma -C-4.5V <1ma
Click on the image at left to download my pencil notes about internal wiring. While not a complete pictograph by any means, they provide an accurate guide to connect catacomb whiskers to a Model 26's terminal block and other parts.