Re: Another RT-2 question

[ddillon@renaissance.cray.com (David Dillon)]

On Thu, 1 Aug 1996 06:14:36, plev@ix.netcom.com (Pete Levin) wrote:

> I should have been more expansive in my first question posting; sorry.
> 
> I had asked for an RT-2 description.  I'm not familiar with the RT-3, 
> so the comparison didn't help much.
> 
> I take it now that the RT-2 lacks the 3's percussion.  Do they both 
> have full manuals like the B-3?  Chorus & Vibrato?  The full drawbar 
> array like a B-3?
> 
> One more time, please ... and thanks.

The "Concert Model" RT-series (RT, RT-2, RT-3) of Hammond organs all have:

Two 61-note manuals
12 control keys for each manual (9 preset, 2 drawbar adjust, cancel)
Vibrato and vibrato chorus
38 drawbars (two sets of 9 for each manual; two pedal drawbars)
91-tone rotating wheel tone generator
32-note concave radiating pedalboard
Pedal solo unit, vacuum-tube tone generator, 32/16/8/4/2&1-foot pitch tones

In short, the RT-series has every feature found on a B- or C-series organ,
plus the larger pedalboard and the pedal solo unit.  Think of it as a B-
or C-series on steroids, if you like.

The pedalboard is not only larger (32 notes vs. 25), but curves upward at
both ends ("concave"), unlike the flat pedalboard of the B- and C-series.

Electrically, the RT-series is identical to the B- or C-series, except
for the added pedals and pedal solo unit.  (The service manual has one
set of schematic diagrams for all three series.)

Physically, the RT-series console is about nine inches wider than the
B- or C-series, to accommodate the extra pedals and the controls for the
pedal solo unit.  The RT-series weighs 525 pounds; the C, 450 pounds;
the B, 425 pounds.

How did the RT-series differ from one another?

RT:    The original Model RT

RT-2:  Same as model RT but with controls which provide Vibrato on either
       or both manuals ("split" Vibrato).  Also has additional control
       for Normal or Soft overall volume.

RT-3:  Same as model RT-2 but with added Hammond Percussion feature.

--
Dave Dillon
San Jose, CA