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MMD > Tech > Wur125 > w125spec

W125 spec
Wurlitzer 125 Specification
compiled by Robbie Rhodes

W125kbd1.gif

file:     W125spec

COMPILER:      Robbie Rhodes, July 2001
DATA SOURCE:   Wurlitzer catalog, Dana Johnson, Matthew Caulfield

BUILDER:       Rudolph Wurlitzer Co.
STYLE:         Style No. 125 Rink or Carouselle Organ
POWER:         Electric motor
MUSIC:         Wurlitzer Style 125 music roll

DESCRIPTION:

Case:

Dimensions:

Weight, packed for shipment:

TOTAL PIPES: 100

PLAYER SYSTEM:
   medium:  punched paper roll
   transport: paper is pulled by take-up spool,
              at constant revolutions per minute
   frame:  typically Wurlitzer Long Roll Tracker Frame (10-tune roll)
   initial paper speed: typical 8.3 feet per minute, adjustable
   reader:  pneumatic, suction, rectangular hole, hole height = ?

   width of paper: 6.00 inches
   take-up spool diameter: 3.0 inches
   supply spool core: 2.00 inches inside diam., 2.25 inches outside diam.
   channel spacing:
      per Mike Kitner:  0.1227 inch per key (20 inches per 163 keys)
      symmetrical about centerline.
   total quantity of possible channels: 47
   total quantity of active channels: 45
   divisions and quantity of channels in division:

             Division
    5  chan  bass
    9  chan  accompaniment
   14  chan  melody
   13  chan  trumpet
    2  keys  percussion
    2  chan  controls (rewind & shutoff)
  ---
   45  chan  total

TRACKER BAR channel assignments:

chan    name

1       Shutoff
2       Snare Drum

3       Bass G
4       Bass C
5       Bass D
6       Bass E
7       Bass F

8       Accompaniment G
9       Accompaniment A
10      Accompaniment B
11      Accompaniment C
12      Accompaniment C#
13      Accompaniment D
14      Accompaniment E
15      Accompaniment F
16      Accompaniment F#

17      Melody A#  -- out of order!
18      Melody G
19      Melody A
20      Melody B
21      Melody C
22      Melody C#
23      Melody D
24      Melody E
25      Melody F
26      Melody F#
27      Melody G
28      Melody A
29      Melody B
30      Melody C

31      Trumpet E
32      Trumpet F
33      Trumpet F#
34      Trumpet G
35      Trumpet A
36      Trumpet B
37      Trumpet C
38      Trumpet C#
39      Trumpet D
40      Trumpet E
41      Trumpet F
42      Trumpet F#
43      Trumpet G

44      Bass Drum
45      Rewind

PITCH TRANSPOSED: originally not, but later production is transposing

DESCRIPTION OF RANKS, percussion and controls/stops:
   division name, quantity of keys & total quantity of pipes in division
   quantity of pipes in the rank, range of rank
   rank name, range [..], true sound pitch of longest pipe in the rank
     air column length of longest pipe

BASS (BASS) div, 5 keys (span: 43G1 - 53F2)
 15 pipes--
  5 8' stopped     (always playing)
  5 8' open        (always playing)
  5 8' Wood Trombone (slider stop)

ACCOMPANIMENT (ACC) div, 10 keys (span: 55G2 - 66F#3)
 18 pipes --
  9 8' stopped    (always playing)
  9 8' open       (always playing)

MELODY (MEL) div, 14 keys (span: 67G3 - 894C5)
 14 pipes  --
 14 stopped flute  (always playing)

TRUMPET (TRPT) div, 13 keys (span: 64E3 - 79G4)
 52 pipes --
 13 open            (always playing)
 13 brass trumpet   (slider stop)
 13 brass piccolo   (slider stop)
 13 wood flageolet  (slider stop)

PERCUSSION (PER),  2 keys
    bass drum & cymbal      (#44)
    snare drum, reiterating (#2)

CONTROLS (CTL), 2 keys
    rewind               (#45)   (appears only at the end of roll)
    shutoff (coin trip)  (#1)    (optional motor shut-off, after each song)

TIME DELAYS
    Bass drum:  delay = 85 millisecond (msec) from key "on",
                           duration 106 msec typ.
    Snare drum: delay = 37 msec from key "on",
                           charging duration 50 msec typical.


4 July 2001

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