Jan 1955 to 1973
Same as RT-2 (ie 3 chorus/vibrato settings and a volume soft/normal tab)
but with Hammond percussion feature as well (as per C3/B3).
Swell and great, 61 playing keys each.
32-note detachable pedal keyboard.
9 preset keys and 2 sets of 9 adjustable harmonic drawbars for each
manual. For pedals, two adjustable drawbars (16' and 8'). One expression
pedal controlling swell, great and pedals.
Pedal solo system has separate volume control, providing the following
solo effects: 32-foot bourdon, 32-foot bombarde, 16 foot solo, 8-foot solo,
4-foot solo, 2- and 1-foot solo, also tablets for mute control and pedal
"ON". Weighs 525lbs.