Assertion: electric organ | /r/CapableOf | use vacuum tubes
Facets:
Source sentences:
text: Unlike all the earlier Hammond organs, which used vacuum tubes for preamplification, amplification, percussion and chorus-vibrato control, the T series used all-solid-state, transistor circuitry, though, unlike the L-100, it did include the scanner-vibrato as seen on the B-3.
text: Electronic organs before the mid-1950s had used vacuum tubes which tended to be bulky and unstable.
text: Unlike all the earlier Hammond organs, which used vacuum tubes for preamplification, amplification, percussion and chorus-vibrato control, the T series used all-solid-state, transistor circuitry, though, unlike the L-100, it did include the scanner-vibrato as seen on the B-3.
text: Electronic organs before the mid-1950s had used vacuum tubes which tended to be bulky and unstable.