was touted as the most sensitive and selective radio of its time
- 1926, and the base unit sold for $165.00 without tubes... The
tubes were an additional $30.00 if purchased from the Kipp Company.
was revolutionary for its day and boasted two detectors, an oscillator,
four stages of radio frequency amplification, and a power tube followed
by a two tube output stage. The main reason that the circuit used
ten tubes, including a then-unheard-of fourth stage of radio frequency
amplification, was to allow for a series-parallel filament circuit
for the 1.1 volt tubes on a 6 volt source.
The R215A "Peanut"
tube was in its day, acknowledged as the most sensitive of all commercial
type tubes and boasted an exceptionally long operating life (up to 10,000
hours), as well as very low current consumption. The Super Ten's current
demands were 500 ma. on the "A" battery and a maximum of 20
ma. on the "B" battery.
I have yet to fire this set
up. I'm waiting for a stormy night with a prolonged power failure. I
have no doubt that it will operate, since all the tubes are showing
continuity (even all the spares).