From tempest@hyperreal.com Fri Apr 26 07:48:09 1996 Received: from informatics.sunysb.edu by taz.hyperreal.com (8.6.12/8.6.5) with SMTP id HAA20595; Fri, 26 Apr 1996 07:48:08 -0700 Received: from pharm1.pharm.sunysb.edu by salieri.informatics.sunysb.edu with SMTP (931110.SGI/25-eef) id AA17714; Fri, 26 Apr 96 10:48:03 -0400 Resent-Message-Id: <9604261448.AA17714@informatics.sunysb.edu> Received: from PHARM1/SpoolDir by pharm1.pharm.sunysb.edu (Mercury 1.21); 26 Apr 96 10:48:03 +0500 Received: from SpoolDir by PHARM1 (Mercury 1.21); 26 Apr 96 10:47:53 +0500 Resent-From: "Roy Roberts" Resent-To: roy@hyperreal.com Resent-Date: Fri, 26 Apr 1996 10:47:51 EST Received: from SpoolDir by PHARM1 (Mercury 1.21); 25 Apr 96 21:21:24 +0500 Received: from taz.hyperreal.com by pharm1.pharm.sunysb.edu (Mercury 1.21); 25 Apr 96 21:21:16 +0500 Received: by taz.hyperreal.com (8.6.12/8.6.5) id RAA29587; Thu, 25 Apr 1996 17:52:04 -0700 Received: by taz.hyperreal.com (8.6.12/8.6.5) id RAA29574; Thu, 25 Apr 1996 17:52:02 -0700 Received: from mhub0.tc.umn.edu by taz.hyperreal.com (8.6.12/8.6.5) with SMTP id RAA29551; Thu, 25 Apr 1996 17:51:53 -0700 Received: from maroon.tc.umn.edu by mhub0.tc.umn.edu; Thu, 25 Apr 96 19:51:50 -0500 Received: from dialup-18-c-167.gw.umn.edu by maroon.tc.umn.edu; Thu, 25 Apr 96 19:51:48 -0500 Comments: Authenticated sender is From: tempest@hyperreal.com To: analogue@hyperreal.com Date: Thu, 25 Apr 1996 19:53:21 +0000 Subject: (Fwd) some simple but handy Paia FatMan mods Priority: normal X-Mailer: Pegasus Mail for Windows (v2.23) Message-Id: <31801e2612fb002@mhub0.tc.umn.edu> Sender: analogue-owner@hyperreal.com Precedence: bulk Status: OR ------- Forwarded Message Follows ------- Date: Thu, 25 Apr 96 15:50:12 +0200 From: tomho@IKP.LiU.SE (Tomas Hogstrom) To: analogue-owner@hyperreal.com Subject: some simple but handy Paia FatMan mods I have made two mods to my Paia FatMan I thougt I'd share: 1) Added a inverted gate output. (Necessary to control my MS20). Needs just a TTL inverter IC, e.g. the 7404 (or 74LS04,...) 2) Added a inverted velocity control voltage output. 5-0 volts instead of 0-5. The latter is made in the following way: vel CV __/\/\/\____/\/\/\__________ R | R | | | | |\ | | | \ | ---------|- \ | | \___|____ inverted vel CV | / ---------|+ / | | / | |/ | 5V __/\/\/\__|_/\/\/\__ 0V R R Four identical resistors of a couple of kiloohms, and a standard OP amp. +/- 12V, 5V and 0V is taken from the FatMan. I have put the output jacks on the rear panel to not change the look of the blue beauty. cheers, Tomas tEMPESt - AH List Admin http://www.hyperreal.com/~tempest "The patch in fig. 2-23 gives the sound of a cracking whip. (Why don't you try to synthesize some screams to go along with it?)" - Roland Model 104 Sequencer Manual