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State Machine
Janitor
Joined: Apr 17, 2006
Posts: 2810
Location: New York
Audio files: 24
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 Posted: Sat Feb 03, 2007 5:15 pm Post subject:
SN Voice Boards End of Ordering for production RUN #2
Subject description: many thanks ............ it's been fun !! |
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Well, I am shipping all the boards by the end of next week fellas. Total sold= 70 PCB's and lots of connectors and chips ... I have shipped about 30 of those packages today. Thanks to everyone who has bought these SN Voice boards ..... I have two synthesizers built up for myself .... 
I am taking names for anyone who is interested in getting in on a third run of boards later in the spring ... apparently there are lots more SN76477 chips than I expected begging to be used in this TH 1V/Octave circuit!! I have had 8 more e-mails asking about a third run 
Thanks again guys ! Remember to post what you are building. I know you are building them .....
Bill
sMs Electronics |
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andrewF
Joined: Dec 29, 2006
Posts: 1176
Location: australia
Audio files: 4
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Posted: Sat Feb 03, 2007 11:20 pm Post subject:
Re: SN Voice Boards End of Ordering for production RUN #2
Subject description: many thanks ............ it's been fun !! |
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| State Machine wrote: |
Thanks again guys ! Remember to post what you are building. I know you are building them .....
Bill
sMs Electronics |
Thanks to you Bill!
btw - I used TL074 op-amps and a 2SC1583 dual transistor with this circuit = no probs
finished my minisyn, updated the homepage -
http://www.sdiy.org/pinky/MINISYN.html |
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State Machine
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Joined: Apr 17, 2006
Posts: 2810
Location: New York
Audio files: 24
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| Posted: Sun Feb 04, 2007 11:27 am Post subject:
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| Quote: | Thanks to you Bill!
btw - I used TL074 op-amps and a 2SC1583 dual transistor with this circuit = no probs |
Alright !! Nice. I guess a bit of careful lead forming was necessary to get the Japanese 2SC version of the matched transistor package in place. Was it a bitch to get the TEMPCO mated to it's surface? Let me know. I am wondering if I should add footprints for various matched transistor pair types that can be used with this circuit? How many octaves would you say you had good V/Oct tracking?
I did not have any doubts that the TL074 would work as it is also a JFET low noise amplifier like the LF444.
Thanks for posting the pictures of that ZANY synth !!!!
Bill |
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andrewF
Joined: Dec 29, 2006
Posts: 1176
Location: australia
Audio files: 4
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| Posted: Sun Feb 04, 2007 3:32 pm Post subject:
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| State Machine wrote: |
Alright !! Nice. I guess a bit of careful lead forming was necessary to get the Japanese 2SC version of the matched transistor package in place. Was it a bitch to get the TEMPCO mated to it's surface? Let me know. I am wondering if I should add footprints for various matched transistor pair types that can be used with this circuit?
Bill |
its not the 1st time I've persuaded the 2SC1583s to fit in LM394 spacing.
my tempcos come from a friend in Japan and are 1/8W sized, so easy to fit.
check out the CGS64 VCA pcb (not the tubeversion) for an example on how to design for multiple types of dual transistors.
from Ken's article -"The board is designed to take a variety of dual transistors, including 2SC3381, 2SC1583, MAT02, LM394, SSM2210 etc."
http://www.cgs.synth.net/modules/pic/wire_cgs64_vca.gif
| Quote: | | Thanks for posting the pictures of that ZANY synth !!!! |
cheers - i'm glad to finally have something tranportable
The DR110 needs more work though - individual trigger inputs and individual audio outputs for a start |
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CJ Miller
Joined: Jan 07, 2007
Posts: 368
Location: 127.0.0.1
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| Posted: Sun Feb 04, 2007 4:11 pm Post subject:
Now I am too excited |
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I can hardly wait! These boards look and sound amazing, and I've already got most of the parts here waiting for them. Nice to know I can use my 2sc1583 if the 394s take too long to get here.
To my surprise, I found that Allied sells shrink-DIP 28-pin ZIF sockets, so I just had to get a few of those. I used to have a few tubes of 76477s but I sold most off them off because the pin spacing was too much of a bother to experiment with. Happy I kept a few.
I'm likely going to add mix mode switches and see if I can make more of the parameters voltage controllable.
I just woke up, must go do stuff...
Thank you Bill!!! |
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State Machine
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Joined: Apr 17, 2006
Posts: 2810
Location: New York
Audio files: 24
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| Posted: Sun Feb 04, 2007 5:55 pm Post subject:
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| Quote: | its not the 1st time I've persuaded the 2SC1583s to fit in LM394 spacing.
my tempcos come from a friend in Japan and are 1/8W sized, so easy to fit. |
Ah, OK. Yes the TEMPCO's I got from MFOS are a bit large.
| Quote: | check out the CGS64 VCA pcb (not the tubeversion) for an example on how to design for multiple types of dual transistors.
from Ken's article -"The board is designed to take a variety of dual transistors, including 2SC3381, 2SC1583, MAT02, LM394, SSM2210 etc." |
Seems like a good way to go, thanks for that link
Bill |
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Scott Stites
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Joined: Dec 23, 2005
Posts: 4127
Location: Mount Hope, KS USA
Audio files: 96
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| Posted: Sun Feb 04, 2007 10:01 pm Post subject:
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| Quote: | | my tempcos come from a friend in Japan and are 1/8W sized, so easy to fit. |
I have some of those, too (1K's). Betcha from the same guy |
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para
Joined: Oct 16, 2006
Posts: 276
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| Posted: Sun Feb 04, 2007 11:35 pm Post subject:
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thanks Bill, looking forward to it!
and nice video andrewF |
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goodrevdoc
Joined: Sep 11, 2006
Posts: 288
Location: Philadelphia, PA
Audio files: 1
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| Posted: Mon Feb 05, 2007 5:07 pm Post subject:
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Received My board & connectors today. Hooray State Machine!  As a side note, my tempcos were in my postbox also. Hooray timing!
-justin |
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State Machine
Janitor
Joined: Apr 17, 2006
Posts: 2810
Location: New York
Audio files: 24
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| Posted: Mon Feb 05, 2007 5:53 pm Post subject:
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| Quote: | Received My board & connectors today. Hooray State Machine! thumright As a side note, my tempcos were in my postbox also. Hooray timing!
-justin |
Great !!! have fun with it Post how you do with your project.
Thanks,
Bill |
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andrewF
Joined: Dec 29, 2006
Posts: 1176
Location: australia
Audio files: 4
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| Posted: Mon Feb 05, 2007 6:00 pm Post subject:
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| Scott Stites wrote: | | Quote: | | my tempcos come from a friend in Japan and are 1/8W sized, so easy to fit. |
I have some of those, too (1K's). Betcha from the same guy |
..wondered if you had some of the same.
I thought I had a lifetime supply, but no, the bag is emptying at a steady rate. |
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andrewF
Joined: Dec 29, 2006
Posts: 1176
Location: australia
Audio files: 4
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| Posted: Mon Feb 05, 2007 6:20 pm Post subject:
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| State Machine wrote: | How many octaves would you say you had good V/Oct tracking?
Bill |
Just had a simple test with my Korg tuner.
7 octaves range; for me, the middle 5 tracked very well.
now my ears hurt. |
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State Machine
Janitor
Joined: Apr 17, 2006
Posts: 2810
Location: New York
Audio files: 24
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| Posted: Mon Feb 05, 2007 6:35 pm Post subject:
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| Quote: | Just had a simple test with my Korg tuner.
7 octaves range; for me, the middle 5 tracked very well. |
OK, very good. mine tracks well for 5 octaves from 100 Hz to about 3500 Hz. After that, it starts to sound a bit funky. As I have mentioned before on other posts, it makes a real nice bassline synthesizer for jungle and drum and bass stuff!
Thanks.
Bill |
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
G2 patch files: 5
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| Posted: Sat Feb 10, 2007 2:37 am Post subject:
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Big big thanks to you Bill,
very nice work what you made.
I let you know when having it done, but it will take some time.
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CJ Miller
Joined: Jan 07, 2007
Posts: 368
Location: 127.0.0.1
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| Posted: Sun Feb 11, 2007 2:12 am Post subject:
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yawn - must stay awake another few hours... so time to stuff some boards!
The shrink-dip sockets are just a bit too big, I'll need to save them for my own PCBs, if I ever make any. Or maybe they'll fit Blacet's adaptors. Still waiting for my LM394s from Futurelec.
Great news is that I finally have resistors and caps, so I can get started. Going to do my ASM-1 boards first though, as they have been waiting for years. Those will be finished this weekend. And my first two SN Voice boards will be started.
I'm wondering just what I am going to do with these! I have a desktop case, I might put two in there with some other stuff to make for a portable noise box. But feature-creep is rough with something this good! I might need to wait until I bench-test the circuits before I know what else they want me to build in there with them. Here goes!
Bill, you rock, sir! |
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CJ Miller
Joined: Jan 07, 2007
Posts: 368
Location: 127.0.0.1
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| Posted: Sun Feb 11, 2007 2:23 am Post subject:
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Andrew, I love your dub-box synth! Everything is so not uniform and symmetrical as most DIY synths I see out there. The pictures and sounds are a blast.
Also I like how you worked the DR110 into it, this is something I've really wanted to do with mine. I modded the hell out of my 110 about two years ago with a small outboard knob-box, but then I decided to go mad and install a PIC 16F84 MIDI interface and individual outs... the PIC burned for whatever reason and the outs are too much work, already too much wire running through there. Thought I might wait until I get another DR110, but I might not!
SN Voices will be a nice addition to your rig there! |
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