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shimshon
Joined: Sep 03, 2008 Posts: 9 Location: bergen county, nj
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Posted: Thu Jan 22, 2009 10:01 pm Post subject:
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thanks |
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mosc
Site Admin
Joined: Jan 31, 2003 Posts: 18197 Location: Durham, NC
Audio files: 212
G2 patch files: 60
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Posted: Fri Jan 23, 2009 2:57 pm Post subject:
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shimshon wrote: | stolenfat wrote: | jameco sells them for 9 bucks a pop, is there a cheaper place to find them? 9 bux! I think thats whacky! |
they're on "sale" for 7.75 now
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Considering there is no need for trimpots and it is much more stable, this is a pretty reasonable price, IMHO. _________________ --Howard
my music and other stuff |
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LektroiD
Joined: Aug 23, 2008 Posts: 1018 Location: Scottish Borders
Audio files: 2
G2 patch files: 2
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alieneYe
Joined: Jul 25, 2008 Posts: 38 Location: Phoenix, Az
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Posted: Mon Mar 30, 2009 5:34 pm Post subject:
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hello
it looks like that 33K is going to +voltage
here is the pinout of the National Semiconductor LM13700 from the datasheet. i believe this is the usual pinout for this chip.
hope that helps |
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Dego
Joined: Apr 22, 2008 Posts: 139 Location: Sweden
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Posted: Mon Jun 15, 2009 12:13 am Post subject:
Re: super simple ring modulator |
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The link is gone again... |
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optigrab929
Joined: Nov 19, 2009 Posts: 4 Location: New York, NY
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Posted: Thu Nov 19, 2009 6:02 pm Post subject:
AD633 Ring Mod Subject description: HELP! |
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Hey,
I am trying to build this circuit>
http://www.musicfromouterspace.com/analogsynth/RingModulator/RingModulator.html
I'm new at this stuff, and it's for a project for school...I was told that I could use two 9V batteries linked together with battery snaps to create the +9V and -9V. Is this ok?
Also, how does this all translate to the breadboard (is -9V going to the ground rail, or are the things going to ground separate)?
I bet you can tell that I'm a novice.
Please help!
Thanks,
Brandon |
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v-un-v
Janitor
Joined: May 16, 2005 Posts: 8933 Location: Birmingham, England, UK
Audio files: 11
G2 patch files: 1
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Posted: Fri Nov 20, 2009 4:40 am Post subject:
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Hey Brandon, to electro-music.com
Yes- two 9v batts will be fine. You need to read off the spec sheet how much of less the chip will take, voltage and current wise. But yes, you should be fine. _________________ ACHTUNG!
ALLES TURISTEN UND NONTEKNISCHEN LOOKENPEEPERS!
DAS KOMPUTERMASCHINE IST NICHT FÜR DER GEFINGERPOKEN UND MITTENGRABEN! ODERWISE IST EASY TO SCHNAPPEN DER SPRINGENWERK, BLOWENFUSEN UND POPPENCORKEN MIT SPITZENSPARKSEN.
IST NICHT FÜR GEWERKEN BEI DUMMKOPFEN. DER RUBBERNECKEN SIGHTSEEREN KEEPEN DAS COTTONPICKEN HÄNDER IN DAS POCKETS MUSS.
ZO RELAXEN UND WATSCHEN DER BLINKENLICHTEN. |
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optigrab929
Joined: Nov 19, 2009 Posts: 4 Location: New York, NY
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Posted: Fri Nov 20, 2009 6:54 am Post subject:
Ring Mod |
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Thanks!
But I am confused -- should the things in my schematic going to "ground" be going to the same rail as the things going to -12V? (i.e. things going to +12V to the red rail and ground and -12V going to the blue rail)
I am very new to all of these procedures--if you have a tutorial or a detailed description of how to do this properly, it would be extremely helpful!
Thanks again,
Brandon |
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blue hell
Site Admin
Joined: Apr 03, 2004 Posts: 24079 Location: The Netherlands, Enschede
Audio files: 278
G2 patch files: 320
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Posted: Fri Nov 20, 2009 9:57 am Post subject:
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You'll need the + of one battery to go to the - of another, that junction will be your ground (and you could make the connection between the batteries on the ground terminal of your circuit).
Then you'll have another two battery terminals, one labeled - which will go to the -12V connection on your circuit and another labeled + going to the +12V on the circuit.
like this :
Code: |
+---------------> to +12V on circuit
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-----
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----- 9 Volt battery 1
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+---------------> to Ground on circuit
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-----
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----- 9 Volt battery 2
---
-----
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+---------------> to -12V on circuit
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_________________ Jan
also .. could someone please turn down the thermostat a bit.
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optigrab929
Joined: Nov 19, 2009 Posts: 4 Location: New York, NY
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Posted: Fri Nov 20, 2009 1:47 pm Post subject:
Power Supply |
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Thanks!
I have two 9V battery snaps (each with a red and a black wire). So I snapped the positive of one battery to the negative of another. So both the red and black wire from this side go to the ground rail on my breadboard? If yes, then do I put the battery snap on the other side also and connect the red (pos.) and black (neg.) to their respective places within the circuit?
AND..since the positive and negative voltages need to be applied to both the Analog Multiplier and the Op Amp, how do I bus the power (especially the negative voltage).
Am I missing something? Is the negative voltage also part of the red (power) rail?
Sorry I'm so slow, but you guys are really helpful!!
Thanks a lot,
Brandon |
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optigrab929
Joined: Nov 19, 2009 Posts: 4 Location: New York, NY
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MirlitronOne
Joined: Nov 07, 2009 Posts: 78 Location: Surrey, UK
Audio files: 2
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Posted: Thu Nov 26, 2009 4:40 pm Post subject:
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1. Look carefully at Blue Hell's diagram above. It explains all your connection questions.
2. Do not use your polarity-reversal switch circuit, as this is not what you want to do (unless you want to let the smoke out). Treat your DPDT switch as a DPST double on-off switch. Use one half to switch the +V supply line, and the other half to simultaneously switch the -V supply. The joint ground connection can stay connected all the time. _________________ Life is like an analogue sequencer. Twiddle the knobs to avoid boredom. |
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skylab76
Joined: Dec 30, 2007 Posts: 38 Location: Austin
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MirlitronOne
Joined: Nov 07, 2009 Posts: 78 Location: Surrey, UK
Audio files: 2
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Posted: Sun Dec 20, 2009 5:22 am Post subject:
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Thanks for that contribution!
A suggestion: cutting all the traces across the board will significantly weaken the board. Just cut the traces where you need to - i.e. between the pins on the ICs - and then you won't need those extra link wires, either. _________________ Life is like an analogue sequencer. Twiddle the knobs to avoid boredom. |
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skylab76
Joined: Dec 30, 2007 Posts: 38 Location: Austin
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Posted: Sun Dec 20, 2009 4:40 pm Post subject:
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MirlitronOne wrote: | Thanks for that contribution!
A suggestion: cutting all the traces across the board will significantly weaken the board. Just cut the traces where you need to - i.e. between the pins on the ICs - and then you won't need those extra link wires, either. |
Thanks for the tip. Yes, in the end, the board seemed a bit "flimsier." That was my first one. I'm working on a layout for René Schmitz's "VCA-2" and I'll definitely follow that advice. That one is tricky since there are numerous cuts for the transistors ,etc.
Regards, |
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MirlitronOne
Joined: Nov 07, 2009 Posts: 78 Location: Surrey, UK
Audio files: 2
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Posted: Sun Dec 20, 2009 5:40 pm Post subject:
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It comes with practice, but it's worth the effort. Once you've had a bit of experience, it's way easier than making PCBs. Rock on! _________________ Life is like an analogue sequencer. Twiddle the knobs to avoid boredom. |
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Antimon
Joined: Jan 18, 2005 Posts: 4145 Location: Sweden
Audio files: 371
G2 patch files: 100
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Posted: Mon Dec 21, 2009 4:44 am Post subject:
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skylab76 wrote: | If anyone is interested in building a stripboard version of the AD633 based ring modulator, here's my diagram: (...)
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Wow, cool! Thanks for this! I've been waiting to try out a stripboard design, and this looks like a great, simple project.
/Stefan _________________ Antimon's Window
@soundcloud @Flattr home - you can't explain music |
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skylab76
Joined: Dec 30, 2007 Posts: 38 Location: Austin
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Posted: Mon Dec 21, 2009 9:26 am Post subject:
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Thanks Stefan. I'm glad to share.
MirlitronOne, yes, I'm really enjoying the strip board method. I've rebuilt a few of my modules I constructed on peg board which were horrendous ( I found another module still on breadboard ). That was worth the time and now I'm looking forward on finishing a couple of new stripboard-based modules. If they're up to par, I'll post them somewhere central in the forum. |
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sync24
Joined: Aug 08, 2009 Posts: 19 Location: UK
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Posted: Fri Dec 17, 2010 7:39 am Post subject:
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skylab76 wrote: | If anyone is interested in building a stripboard version of the AD633 based ring modulator, here's my... |
i know this i from a year ago, but thanks!
it's just what i was looking for _________________ http://sync24.wordpress.com/
http://soundcloud.com/sync24 |
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knutolai
Joined: May 06, 2012 Posts: 5 Location: norway
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Posted: Sun Feb 22, 2015 1:01 pm Post subject:
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Quote: | If anyone is interested in building a stripboard version of the AD633 based ring modulator, here's my diagram: |
I know this thread is very old, but do you still have that project pdf? I think the link is dead |
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