; 
;
The same
synt, only under the name Kawai.
The Teisco S-100F is a single VCO monophonic analogue synthesizer with
a 3-octave, 37-note, C-C keyboard.
Also made under the badge of Kawai. The S-100F has a single oscillator
with a very wide range, selected via a
7-position knob (2', 4', 8', 16', 32',64' and "low"). A slider controls
tuning within the octave. Available waveforms
are sawtooth and square, which can be mixed with either noise or an
external audio signal. The VCO can be
modulated by either envelopes or the LFO, with a slider controlling
delay. The VCF section has sliders for cutoff
frequency and resonance (called "peak"). The filter can be modulated
by the LFO, Envelope 1, the external input,
or the oscillator (sawtooth or square waveforms). The amplifier can
use its own envelope generator, Envelope 2,
or a simple keyboard gate, and has its own gain slider in addition
to the main volume slider. A simple high-pass filter
is also available at the end of the audio chain, with a slider controlling
filter cutoff. Both of the envelope generators
have a three-position switch for envelope type and a slider for attack
and one for decay. The first switch position
creates a simple AD (attack decay) envelope. The second turns the envelope
into an ADS (attack decay sustain)
where the sustain is set at about 75% and there is no release value.
The third creates an ASR (attack sustain release)
envelope where the sustain is at full value. A switch between both
envelope sections chooses between keyboard and
LFO triggering for both envelopes. There is a three-mode portamento
(not sure what the modes are) with a slider
controlling lag amount. The LFO section has a slider for rate and is
switchable between sawtooth, triangle,
and square waveforms.
[from The A-Z of Analogue Synthesizers, by Peter Forrest,
published by Susurreal
Publishing, Devon, England, copyright 1994 Peter Forrest]
Patchsheets
This image contains three empty patchsheets.
Empty Patchsheets (178KB) Made by Dennis Verschoor.
Manual
Stupid me, I totally forgot about this manual. I have it since 2002 and now 2007
I noticed it was not online. So here it is. Thanks to Jos van Zalm for scanning.
26 pages 3,5 MB. English only. Press here
Schematics
The schematics are available as one gif file from:
http://www.physicsenterprises.andrews.edu/diy_archive/manuals/teisco/index.html
Links
Dedicated 100F site. A lot of info, pictures and mods. Excellent resource!
http://www.cykong.com/Synths/Kawai%20S-100F/KawaiS100F.htm
Huge picture at Electronic Musical Instruments Museum (Japanese)
http://www.denhaku.com/77/syn100f.jpg
http://www.synthmuseum.com/kawai/kaw100f01.html (Big color picture)
Search on Teisco in the Analogue Heaven Archive:
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