Monday, February 09, 2009
johnson intonation trainer synthesizer tunable keyboard
via this auction
"Johnson Intonation Trainer
Made by the E.F. Johnson Co.
Waseca, Minnesota U.S.A.
* Cool four-voice tunable electronic keyboard (scale selector switch offers choice of standard/tempered tuning or tunable modes)
* Originally used to test the relationship of pitch-matching and pitch-discrimination abilities
Highlights
* Three octave keyboard
* Scale Selector - choose between reference (tempered tuning) or tunable
* Tunable Scale Controls - correspond to notes on keyboard and adjust pitch in tunable mode
* Voicing - choose from four voices - - basic sine wave to reedy / edgy
* Speaker in case (can also connect to external amp, mixer, etc)"
2 comments:
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
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I know someone who has one of these, I spent about an hour with it once. If your music involves alternative tuning systems you might want to check this out. You use the pots that are laid out like a keyboard to change the tuning of the intervals. So you can listen to beats and tune up pure intervals instead of equal tempered ones. Plus, I think the whole thing is tube-based.
ReplyDeleteCheers, JL
Does anyone know what one of these are worth?
ReplyDelete