jörg piringer - [digital sound visual interactive poetry music robotics etc.] - Comments

jp: opto organ

nospam@example.com (jp) — Sun, 21 Mar 2010 20:11:16 +0100

you should be able to use a 9v power supply but you might need to adjust the resistors of the LEDs. it works through the rotation of the transparent and printed disc. search for "optigan" in the web...

Peppe: opto organ

nospam@example.com (Peppe) — Sun, 21 Mar 2010 20:04:50 +0100

..the circuit progect is so easy. is it possible.? ther isn't an IC in the circuit... how can it works? And can i usa a 9v power ...

Thiago: drummer

nospam@example.com (Thiago) — Sat, 10 Oct 2009 00:33:58 +0200

Man, thats great. I´m trying to make a similar, but i just can´t understand ableton. Do you have the live project for download?

Anonymous: opto organ

nospam@example.com () — Thu, 03 Sep 2009 16:23:22 +0200

sir, this design is brilliant

sebastian: my midi controlled cmos synth

nospam@example.com (sebastian) — Sun, 09 Aug 2009 16:30:37 +0200

wooww this is totally awesome. I want to build one for my 40106 based oscillators, but i have no adr programming thingi. Is it possible for you to send me a ic (programmed)?? What is the ISP Thing in the schematic? Is it an IC? Sorry i never used microcontrollers. btw i live in germany, so we can talk in german. my english is not sooo good... Thank you so much Sebastian

mhc: opto organ

nospam@example.com (mhc) — Sat, 13 Jun 2009 16:13:26 +0200

So you use photocell like that http://www.futurlec.com/Pictures/Photocell.jpg ? I ask you that because I tried your circuit and got no sound at all...

jp: opto organ

nospam@example.com (jp) — Sat, 13 Jun 2009 08:57:40 +0200

you are right: LDRs are photocells.

mhc: opto organ

nospam@example.com (mhc) — Sat, 13 Jun 2009 03:02:31 +0200

but... light depended resistors are not photocells?

jp: opto organ

nospam@example.com (jp) — Fri, 12 Jun 2009 22:01:32 +0200

no i used light depended resistors but actually photodiodes or photocells might be better. there's no op-amp involved. the signal is only amplifyed by the amps of the mixing desk.

mhc: opto organ

nospam@example.com (mhc) — Thu, 11 Jun 2009 19:53:57 +0200

Hi! This is a great instrument! When you say LDR do you mean Photocell or Photodiode? You amplified the sound with an audio ampli or you built a Op Amp? Thanks!

celibacyclub: opto organ

nospam@example.com (celibacyclub) — Tue, 12 May 2009 18:12:35 +0200

like like the fanbladeness! also, id like to see this blogs feed on emfeeds:http://emfeeds.com/

lotan: relay organ

nospam@example.com (lotan) — Fri, 13 Mar 2009 16:19:15 +0100

I'm dreaming everyday for a schematic!!!

jp: opto organ

nospam@example.com (jp) — Wed, 18 Feb 2009 17:11:28 +0100

ah no it's just a simple push button that closes when you push the button and lights the led.

Rik: opto organ

nospam@example.com (Rik) — Wed, 18 Feb 2009 17:09:19 +0100

is the 5501 in the schematic a HCPL-5501 - Hermetically Sealed, Transistor Output Optocouplers for Analog and Digital Applications - Agilent(Hewlett-Packard)????

cybercharles: relay organ

nospam@example.com (cybercharles) — Thu, 12 Feb 2009 12:36:23 +0100

Hi Just to inform you that I’m not a beginner in electronics. So I can easily understand an abstract schematic rapidly draw by hand and translate it on the electronic board… About the pager motor I don’t know if you can obtain has finest sound has I can heard in your example. You can define the sound in both parts: the contact clic (clic clic clic …) and the buzz (clic buzz clic buzzzzzzzzz clic buzz clic clic …) whith pitch variation. Up to me with pager motor you can’t obtain clic, only buzz. Are this various frequency vibrations have a relation with the MIDI note pitch in the sequencer? Charles