Re: Kalliope Specs
By Terry Smythe
From: rrhodes@foxtail.com (Robbie Rhodes, Etiwanda, Calif.)
> Terry Smythe's idea of microfilm (16mm) camera recording
Nope...... use a 35 mm microfilm camera, 16mm image far too small. 70mm would be even better, but not routinely available. Hmmmnnnnnnn........ what about an old 8 x 10 view camera loaded with fine grain high contract film? Most every city has a photo studio somewhere with a large format view camera hidden in a back storage room.
> Terry Smythe: Your 28-inch Kalliope seems like a representative "big"
> instrument. What is the channel spacing at the star-wheels? What is
> the normal rotational speed (seconds per revolution)?
Here's the specs you asked for. Hopefully, a 'mask' can be developed from these dimensions. Let me know if further data needed.
KALLIOPE DISK MUSIC BOX
Coin-Op Upright Model 200 w/saucer bells
As per pages 110/111 of Bowers' Encyclopedia
Refer to illustration on page 111 for data below.
Uses 64.5 cm diameter disks (25 1/8")
The music combs are in 6 segments, 3 opposing sets
- bass - 36 notes each side = 72 notes
- treble - 36 notes each side = 72 notes
- bells - 6 each side = 12 bells
Music scale ascends from center lowest bass.
Bass comb segments close to center, bells on perimeter
The opposing segments span a total of 11", bottom of bass through top of bells.
The opposing bass segments are 6 9/16" each
The opposing treble segments are 3 5/16" each
The opposing bell segments are 17/16" each
Note the spacing in the treble segments are exactly half that of the bass segments.
The total span includes 3 idler wheels on which the disks ride, located between the segments. The 2 treble sections have 2 silent notes at top and bottom opposite the 2 lower idler wheels, for a total of 4 silent notes.
The disks have a 12 1/2" radius, from center point to outer rim.
The disks are rim driven, and the drive perforations are each 1/4" and located 12 1/8" from center point.
1st bass note is 1" from center point.
Last bell note is 12" from center point.
Each note is driven by an individual star wheel
+++++++++++++++++++++++++++++++++++++++++++++
Terry Smythe (204) 832-3982 (voice/fax)
55 Rowand Avenue smythe@mts.net
Winnipeg, MB, Canada R3J 2n6 smythe@freenet.mb.ca
Home page: http://www.mts.net/~smythe |
(Message sent Wed 7 Aug 1996, 16:27:11 GMT, from time zone GMT-0500.) |
|
|
Mechanical
Music Digest™ Archives
