Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!ncar!asuvax!ukma!usenet.ins.cwru.edu!ysub!psuvm!cunyvm!ndsuvm1!mtus5!ldshaner From: LDSHANER@MTUS5.BITNET (Leon D. Shaner) Newsgroups: comp.sys.amiga.audio Subject: Re: MIDI Survey question... Message-ID: <91121.212326LDSHANER@MTUS5.BITNET> Date: 2 May 91 02:23:26 GMT References: <1991Apr23.153930.7013@dialogic.com> <12718@uhccux.uhcc.Hawaii.Edu> Distribution: na Organization: Computing Technology Services, Michigan Technological Univ. Lines: 27 The one I built a couple of years ago has 1-in, 1-thru, and 3-outs and only cost about $10.00... That includes the 5, 5-Pin DIN's, several resistors, a hex invertor buffer, opto-coupler, 12 down to 5V voltage transistor(convertor), an excellent aluminum box to house it all, a piece of perf-board, a length of four conductor shielded wire, plus 25-pin DB connector... This is no "hack" job, it not only performs superbly, but it even looks professional... It was based on the readily (amicus) available pd schematics, and I think a newer version has been posted to ab20 with the Amiga2000 mods... The shematics I used were for the Amiga1000, and just required a different gender for the DB25, plus the voltage drop transitor (since the 2000 has only a 12 volt output, unlike the A1000's 5 and 12 volt outputs...) Both shematics are also available for file request from my BBS at 1:139/950 or you can call direct, but validation is necesary, so you might want to leave me e-mail so I can set the account up ahead of time... The files are MIDI.LZH for the A1000 and NEWMIDISCHEM.LZH for the A2000/500 Hope this helps... --Leon ---------------------------------------------------------------------- | Leon D. Shaner - EE Undergrad / Amiga Bitswap Central Dispatch / | / (906)482-8248 - DLG PRO! BETA / | / HST DS [FIDO 1:139/950] 2 LINES!/ ------------------------------------------------------------------