|
|
Post by hawklord2112 on Dec 30, 2019 10:25:59 GMT
So 3.30am this morning I get the idea / what if
Ring mods are 4x diodes, iirc
So what if
Ring mod circuit
But
LEDs?
Is this even a thing?
|
|
|
|
Post by NightMachines on Dec 30, 2019 10:59:47 GMT
I think that it can be done, but I assume that one might have to modify typical diode ring mod circuits in a way to play nicely with the AE Modulars strictly positive voltage range of 0-5V.
|
|
|
|
Post by MikMo on Dec 30, 2019 14:28:53 GMT
|
|
|
|
Post by slowscape on Dec 31, 2019 1:43:40 GMT
I have a thread here for a simpler ring mod but like night machines said, the signal needs to be centered on zero before it will work properly.
I never succeeded
|
|
|
|
Post by Morn Valley on Jan 19, 2020 15:28:40 GMT
If anyones interested here's a link to a paper by experimental musician Hugh Davies, he was Stockhausen's assistant and his own work was centred around DIY instruments and electronics. lt has some theory at the beginning and then detailed instructions on building a Passive Ring Modulator with suggestions for component changes. I think you can get away with any diode but it will have a different character, just breadboard it up to test it. electro-music.com/forum/phpbb-files/hughdaviesringmod_140.pdf |
|
|
|
Post by rodney on Mar 10, 2020 0:04:37 GMT
I am thinking of braving it and going down the ring mod DIY rabbit hole ...
Once you have the signal inverted, I'm not sure where to go from there. I plan to do some googling to figure it out and learn something myself before I inevitably give in and just ask him to draw me a circuit.
I assume that the output can get back to 0-5v using an op-amp plus resistor and capacitor?
LEDs would be fun if they do what is needed and light up while they do it, but I suspect germanium ones will be the thing (then, buy one more and make a crystal radio to enjoy before AM radio is gone from the world and you can go on and on about it to your grandchildren).
|
|
Lugia
Wiki Editors
Ridiculously busy...ish.
Posts: 556 
|
Post by Lugia on Mar 10, 2020 3:05:33 GMT
Basically, anything that passes current in only one direction is suitable for building a ring modulator. Diodes get used because they're simple and cheap...but you can use similar things, or even "diodes" you'd not expect. There's a bit in the full version of "I Dream of Wires" where Ramon Sender and Bill Maginnis are at Mills' studio, and they show off a ring mod that's still in use that Don Buchla slapped together out of scrap transformers and silicon rectifiers...which, yes, are diodes, but you'd more typically find them in high-current power supply situations. Nevertheless, they do the job.
|
|
