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<!--== See also ==-->
{{From Wikipedia|Synthesizer}}▼
== References ==
▲{{From Wikipedia|Synthesizer}}
{{Reflist}}
== Further reading ==
* ''The Complete Guide to Synthesizers'' by Devarahi, Prentice Hall, 1982, ISBN 0-13-160630-1, pages
== External links ==
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==== Readily available analogue IC and discrete component based ====
* Formant music synthesizer by [[C. Chapman]], Elektor, 1978, p.
* [http://yusynth.net/Modular/EN/ADSR/index.html yusynth ADSR] has a [[555]] core with a few op-amps.
* ''[https://sdiy.info/wiki/File:The_Reprint_Collection_by_Thomas_Henry_CC_BY_NC.pdf ADSR the Easy Way]'' by Thomas Henry, Polyphony, March/Apil 1982, pp.
* [https://www.schmitzbits.de/adsr.html Envelope ADSR schematics on Schmitzbits] - 3 envelope schematics based on readily available components.
==== CEM IC based ====
* Digisound 80 [http://www.digisound80.co.uk/digisound/modules/80-10/80-10.htm 80-10 Voltage Controlled Envelope Generator], uses [[CEM3310]]. ''Electronic Music Circuits'' by [[Barry Klein]],1982, p.
* Digisound 80 [http://www.digisound80.co.uk/digisound/modules/80-8/80-8.htm 80-8 Dual ADSR], uses CEM3310
* Digisound 80 [http://www.digisound80.co.uk/digisound/modules/80-18/80-18.htm 80-18 Dual Multi-Function Envelope Generator], uses CEM3310
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