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 Forum index » DIY Hardware and Software » fonik's place
SSM2044 PCBs - 2nd run.
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EdisonRex
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Joined: Mar 07, 2007
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Location: London, UK
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PostPosted: Wed Sep 26, 2007 2:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

b-funk wrote:
yeah, the 2040 are rare indeed Sad

but i need one to repair my emulator 2...

or i just rip the 7 working units out of it and redesign the emu for ssm2044, of which i also have a bunch of sitting on the shelf...
maybe not the baddest idea as the emu uses the 2040 just as lpf...
hmm...
worth thinking about...

but: i maybe would be interested in 1 or 2 envelope chips. those are the ssm2056, right? maybe they are cheaper than the cem3310 envelopes?

best wishes,

tobias


yeah, 2056. PM me. I have a few more than I need. I'd trade, if you have anything interesting. I'm looking for CA3080s and matched transistors, mostly, but let me know what you have that you have too many of, except the 2044s since I already have too many. Smile

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Sound



Joined: Jun 06, 2006
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PostPosted: Fri Sep 28, 2007 10:29 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks B/Funk!

Edison I Pmed you.



About the resistors 1k PT146 (3500) , I found them here >

http://www.precisionresistor.com/ordera.asp

But the minium order is for 25 USD, so I must buy 9 or more, and I only need 2.

Is anyone interested in? I can buy it and after I can send tou you , of course, for the same price + shipment from Barcelona Spain. Paypal.

Anyone?
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huck



Joined: Aug 08, 2007
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PostPosted: Sun Sep 30, 2007 12:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

hey is there going to be another run of these ?
i need more for another project
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fonik



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PostPosted: Sun Sep 30, 2007 12:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

huck wrote:
hey is there going to be another run of these ?
i need more for another project

i still have some PCBs. just send me a PM...

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bugbrand



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PostPosted: Sun Sep 30, 2007 5:14 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hey I finally got mine built. Great great sounds. Compact power! And I've got another SSM2044 chip free for later use..

There were a couple of little mods I did which maybe have/have-not been mentioned before.

-- Inverting or non-inverting -- I chose to go for the inverting input due to the inverting buffer afterwards. Popped up a resistor and flew a wire across. I'm not sure what other people would think on this subject??

-- the other thing was the Freq pot -- I just noticed the comments above from Mathias - yeah, I found that I couldn't get a decent range originally (though I did wonder whether my 12v supply was the issue) so I cut the Freq pot's trace to ground and jumped in another 47k resistor down to v-. This definitely seems to have made things better.

Aceness! I want to do a souped up version for the 2nd SSM chip.


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fonik



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PostPosted: Thu Oct 25, 2007 6:04 am    Post subject: Reply with quote  Mark this post and the followings unread

i just ammended the documentation to reflect the latest enhancement (R23 now 75 for wider CV2 range). for the cutoff freq potentiometer i recommend the alternate wiring as shown on the schematic.
documentation rev3.2 PCB

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synthnut



Joined: Aug 15, 2007
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PostPosted: Thu Nov 29, 2007 10:47 am    Post subject: Reply with quote  Mark this post and the followings unread

Hi,

I'd like to place an order for 4 boards if they are still available
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fonik



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PostPosted: Thu Nov 29, 2007 12:00 pm    Post subject: Reply with quote  Mark this post and the followings unread

synthnut wrote:
Hi,

I'd like to place an order for 4 boards if they are still available


check your PMs Wink

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fonik



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PostPosted: Fri Nov 30, 2007 4:34 am    Post subject: Reply with quote  Mark this post and the followings unread

SOLD OUT

thanks everyone.

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Luka



Joined: Jun 29, 2007
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PostPosted: Fri Nov 30, 2007 5:10 am    Post subject: Reply with quote  Mark this post and the followings unread

just got mine in the mail
thanks matthias

if anyone has a spare ssm2044 drop me a PM
i would rather buy from you lots instead of heading to ebay so let me know
(only after 1 chip)

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Junk Rhythm



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PostPosted: Thu Nov 26, 2009 6:21 am    Post subject: Reply with quote  Mark this post and the followings unread

Any chance of another run on these PCBS? I'm sitting on a few ICs that need a new modular home. Smile
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fonik



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PostPosted: Thu Nov 26, 2009 6:30 am    Post subject: Reply with quote  Mark this post and the followings unread

actually not. however, it is a low part count circuit, you could easily build it on perf board, i believe.
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Junk Rhythm



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PostPosted: Thu Nov 26, 2009 6:34 am    Post subject: Reply with quote  Mark this post and the followings unread

Perf board it may have to be.
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toppobrillo



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PostPosted: Fri Nov 27, 2009 2:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

etch it!!! Cool
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Junk Rhythm



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PostPosted: Fri Nov 27, 2009 3:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

topp wrote:
etch it!!! Cool


Even better idea! cheers

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haxster



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PostPosted: Fri Nov 27, 2009 3:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

I have an SSM2044 vcf pcb layed out. I am willing to do a run of this if enough interest is generated.

Here's a picture of it:
ssm version EuroRack PCN Rev3

It has (2) overdriven Audio inputs, an Fm bi polar input and regular CV input.
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fonik



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PostPosted: Fri Nov 27, 2009 3:52 pm    Post subject: Reply with quote  Mark this post and the followings unread

haxster wrote:
... an Fm bi polar input and regular CV input.

that's quite nice!

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tommi



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PostPosted: Fri Nov 27, 2009 5:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

I 've made a quick search for ssm2044 and it seems that the only place where i can find it it's ebay. The price it's around ten euros Confused
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fonik



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PostPosted: Sat Nov 28, 2009 12:40 am    Post subject: Reply with quote  Mark this post and the followings unread

tommi wrote:
I 've made a quick search for ssm2044 and it seems that the only place where i can find it it's ebay. The price it's around ten euros Confused

that's the way it is. however, the price will drop as soon as you decide to buy 10+, i believe.

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TekniK



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PostPosted: Sat Nov 28, 2009 3:12 am    Post subject: Reply with quote  Mark this post and the followings unread

utsource have plenty of them and am sure they r cheap

note the haxter board is for 2x 2044,i guess its a stereo filter.

If someone has ssm2040 for sale plz PM me.


Fonik,if u made another run am interested into 6-8 boards or something
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EdisonRex
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PostPosted: Sat Nov 28, 2009 12:25 pm    Post subject: Reply with quote  Mark this post and the followings unread

I still have quite a few 2044s in my collection, along with 6 boards in mostly complete condition. PM me, I am more interested in a trade than a sale, but will sell too.
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scriptstyle



Joined: Jan 22, 2008
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Location: nj

PostPosted: Sun Nov 29, 2009 1:42 am    Post subject: Reply with quote  Mark this post and the followings unread

just finished one of these.(the self etch pcb) nice quick project, and a quality filter. thanks fonik
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haxster



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PostPosted: Wed Dec 02, 2009 1:21 am    Post subject: Reply with quote  Mark this post and the followings unread

note the haxter board is for 2x 2044,i guess its a stereo filter....

No, it is actually just one chip(MONO), I just silkscreened twice because once the chip is stuffed you can't see what chip is what on the pcb.

This has an Onboard PWR supply also (optional)

The IC's are:

SSM2044
TL074
(2)TL072
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fonik



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PostPosted: Thu Sep 09, 2010 7:17 am    Post subject: Reply with quote  Mark this post and the followings unread

i think this thread should now be moved into the fonik's place, just for completeness. janitors?
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Scott Stites
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PostPosted: Tue Sep 14, 2010 1:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

Roger Wilco Very Happy
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