Building the 2720 series modular.

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Building the 2720 series modular.

Post by PAiA-Scott »

Nick wrote:
> Hi, I'm interested in building the synthesizer featured in the attached .pdf. It seems like a great project to gain a foothold in the electronic music field. Does PAiA still sell this 2720 series in kit form?
> Thank you for your time.


Subject:Re: Build a Modular Synthesizer
From:Scott Lee <>
Date:Mon, 09 Feb 2009 10:16:46 -0600

Hello Nick.

Thank you for writing with an interest in building the synthesizer featured in the pdf article. This was a PAiA project from back in 1973. We stopped making this series in the late seventies with the introduction of the 4700 series modular. The 4700 Series was in production through the 80s. Our current offering for modular synthesis is the 9700 series.

We also have a single-board, analog synthesizer, FatMan:

We don't have keyboards anymore as they have become scarce and expensive. Keyboard controllers and instruments with a MIDI output which can be used to operate the P9700S or FatMan and are low-cost and readily-available. Both the P9700S and FatMan are more modern versions of a monophonic synthesizer voice, compared to the 2720 series synthesizer in the article, though the article provides a good basis for understanding the P9700S or FatMan.

Build A Modular Music Synthesizer < ... rticle.pdf>

As an aside, FatMan uses the same exponential (v/hz) cv for control of it's linear-response VCOs as was the type used in the 2720 and 4700 series modulars and sometimes the older PAiA modulars can be found on Ebay or in garage/estate sales to be used to expand FatMan's capability under control of its Pitch CV, Velocity CV, and Gate-trigger outputs. The P9700S uses the opposite type control, linear cv (v/oct) for exponential response vcos.

Thank you.

Sincerely, Scott Lee
Scott Lee