Quote:
Originally Posted by bob91343
Note that there is no variable tuning capacitor. It moves slugs through coils to tune. A spinoff of the Dumont Inductuner or the Collins PTO.
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No, the "slug tuned" components shown in the excellent close-up photo by Robb are actually sleeve variable capacitors... they are indicated as capacitors on the schematic as well. On the photo you can see the two "plates" of each variable cap and the small trimmer cap soldered between them. The "slugs" increase or decrease the capacitance between the two "plates" to tune the radio. The coils in each L-C are located to the sides of each variable capacitor and are fixed in value.
jr