Passive Ring Modulator sample

v-un-v · Posted: Tue Jul 26, 2005 3:11 pm Post subject: Passive Ring Modulator sample

Since the thread on the passive ring mod seems to be half way into another thread somewhere else, here it is in the SoundLab pages- just incase you need one. (Zebra, this one's specially for you btw)

Using 2 sinewave oscillators- each with its own envelope generator I controlled these with a sequencer while messing with the tape delay plug in in Logic Audio- for a bit of 50's sci-fi.

You will notice the high frequency alising which is typical of the passive ring modulator circuit. I left it in just to demonstrate the sound.

Also the first few bars of the sample is straight sinewave- which sounds more like a square- because of the distortion in the circuit- then the ring mod kicks in. I like this sound- warm and fuzzy and very metallic sounding. Definately usable but sounds best with sinewaves and squarewaves. sawtooth waves (prominent on the soundlab) are a bit harsh for my liking :)

passive ring mod.mp3

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kobresia · Joined: Jul 14, 2005 Posts: 10 Location: Norway

sounds great! i was also thinking of adding a ring modulator, maybe have to redesign the panel to make room (maybe lose the fine tune for osc1), there's a few designs based on the MC1496 around the net, and others even simpler. do you have (perhaps a link to) the schematics you used for this one?

v-un-v · Posted: Tue Jul 26, 2005 5:09 pm Post subject:

Thanks kobresia!

I don't have the schematic for my ring mod anymore, but I may try and make a stripboard layout for it so you can copy it.

You can find Ken Stone's site here;

http://www.cgs.synth.net/

His stuff will blow your mind :) I especially like the idea of a module that ONLY sounds like a V8 engine!!!

Tom

ladislaobiro · Joined: Mar 24, 2005 Posts: 105 Location: Italy

hey v-un-v, really great sounds... as soon as I get my sound lab finished I will definitely build a ringmod too...
I love these clock-bells like sounds...
bye
ladislao

Wild Zebra · Posted: Wed Jul 27, 2005 7:21 am Post subject:

Hey thanks v-un-v.
sounds nice. Nice tweaking on the delay. I already have my panel space
all layed out for the ring mod. So I reckon I'm gonna buy Ken Stones
unless you get a stripboard layout first Wink

. Thanks for posting that.
So how close are you on the old Soundlab, I'm eager to see it.

Hello ladislaobiro been a while

v-un-v · Posted: Wed Jul 27, 2005 7:50 am Post subject: frequency mongulations

yeah- very FM sounding. I can't quite get that same sound from a modern 4-quad multiplier. But I think they have their uses too.

My soundlab? Well I'm still waiting for parts to arrive. The box has been a total nightmare- but its getting there. I'm also completely brassic- having to put lots of stuff on ebay right now. I'm gonna be selling some homemade theremin PCB's (pre drilled too) soon. I'll give you people first refusal if yr interested?

Tom

Wild Zebra · Posted: Wed Jul 27, 2005 8:10 am Post subject:

Selling anything cool? Whats your seller name maybe some of us
can help finance your project Smile

? Theremin PCBs sounds nice. Whats the story on them.

v-un-v · Posted: Wed Jul 27, 2005 9:01 am Post subject:

I'll post some info later. Right now I've got to go pick my girlfriend up from work.

I hear it's very hot right now in Ohio? It's been mad here to- especially after all recent the terrorist attacks. Only a mile away or so one of the would-be bombers has just been arrested by tazer gun, a lots of people are standing out in the streets!

At least its cooled down here now. Actually its almost cold!

Tom

Wild Zebra · Posted: Wed Jul 27, 2005 9:12 am Post subject:

Its hot as hell. It was 105 yesterday. Its the humidity thats the killer.
My thoughts go out to you and yours. Take care. Hey while I got you in here. I don't know if you saw my ques. about the sample and hold, but do you know if you can just hook it right up to the soundlab board for power or does it need its own power supply?
I'd be interested in one of them there theremin boards. My friend was going to by a Theremax kit and have me build it for him, but I'd sure like one too.

ladislaobiro · Joined: Mar 24, 2005 Posts: 105 Location: Italy

Wild Zebra · Posted: Thu Jul 28, 2005 7:33 am Post subject:

Yeh f'ing work hear you there, but if it wasn't for my work right now
I wouldn't be able to participate in this forum. Don't have a computer at home right now, its broke. Well August isn't that far away. That Theremin boards got my interest peaked too.

Well, take care

dnny · Posted: Thu Jul 28, 2005 12:38 pm Post subject:

can´t wait to hear more of those theremin boards -

the ring mod sounds really nice.

just noticed that on SL there is half LM13700 unused on IC3.
Posted Image

if you just cut the vials of pins 3 and 4 to ground (red line) and its good as new.

so i will try this Aaron Crams ring modulator schematic that uses half LM13700 .
Posted Image

(the PDF of the ring mod schematic is here Apache project)

on the LM13700 datasheet there are some interesting schematics - i just can´t sleep if there is half of IC unused Smile

hope to get soon some samples of my SL (still some wiring to do)

daniel

v-un-v · Posted: Thu Jul 28, 2005 3:59 pm Post subject: afternoon of the twisters

Alright chaps, It's been a f**kin crazy week- Today we had a T4 tornado today (yeah don't laugh- it was fucking scary and it just missed this house!). Okay no way as bad as tornado valley but pretty bad!!

http://www.bbc.co.uk/birmingham/content/image_galleries/tornado_gallery_Copy.shtml

I'll sort the theremin boards out to post tomorrow (plus some of the pix I took today :) Must sleep now- what an intense day

Tom

Wild Zebra · Posted: Fri Jul 29, 2005 7:13 am Post subject:

Holy sh@t thats nuts. Its Tornado season bad here in the states
right now. One passed through when I lived in Florida for a summer
and it was very scary. Get some rest.

v-un-v · Posted: Sun Jul 31, 2005 3:14 am Post subject:

Alright noise dudes.......

heres the link (I've put it in the DIY section- so people can find it easier)

http://electro-music.com/forum/post-47336.html#47336

Tom :-)

mosc · Posted: Sun Jul 31, 2005 2:05 pm Post subject: Re: afternoon of the twisters

v-un-v · Posted: Mon Aug 01, 2005 1:43 am Post subject: Re: afternoon of the twisters

Alfredo · Posted: Thu Nov 20, 2008 6:01 am Post subject:

Hello, this is my fist post!
I´m just finished my soundlab minisynth plus and I want to add the Aaron Cram ring modulator, I have this schematic but my knowledge in electronic it´s not enough to stripboard the circuit.
Please, if somebody can help to stripboard this I will be very happy and very grateful.
http://www.desordenado.googlepages.com/ringmod.jpg
Sorry for my basic English.

AaronCramringmod.jpg

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mosc · Posted: Thu Nov 20, 2008 1:24 pm Post subject:

Great to have you here.

ericcoleridge · Joined: Jan 16, 2007 Posts: 889 Location: NYC