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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks for the clarification. In looking at the board for
the SN voice project (in the link you provided), you can clearly see in the picture
the odd spacing of the SN76477 chip compared to the other ICs around the
76477. It even looks like a copy of the BG Micro breakout
board. It must be some sort of .07” or .05” spacing on the
chip pins.<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> dorkbotpdx-blabber-bounces@dorkbot.org
[mailto:dorkbotpdx-blabber-bounces@dorkbot.org] <b>On Behalf Of </b>Jesse Mejia<br>
<b>Sent:</b> Saturday, July 04, 2009 8:46 AM<br>
<b>To:</b> A discussion list for dorkbot-pdx (portland, or)<br>
<b>Subject:</b> Re: [dorkbotpdx-blabber] Synth chip (SN76477) Group Order<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The SN76477 was produced in 2 form factors - standard
dip, and a narrower version. (0.4" row sapcing I believe)<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>The BG micro lady told me the chips they have in stock are
the narrower version - she didn't specify the exact spacing but after doing
some internet hunting it looks like they will likely be 0.4". She
recommended the breakout board to solve this. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>FYI today I found this socket at digikey:<o:p></o:p></p>
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<p class=MsoNormal><a
href="http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=ED22284-ND">http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=ED22284-ND</a><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Which I believe will work. Maybe if enough ppl order them w/
the next normal dorkbot group order they'll be cheap!<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I need to verify the pin spacing - so far all I know for
sure is that the chips BG micro carries fit the little breakout board they also
carry.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>For what it's worth.. if anyone is interested in the
SN voice project.. I *think* these pcbs are still available <a
href="http://mypeoplepc.com/members/scottnoanh/smselectronicssnvoicepcboard/">http://mypeoplepc.com/members/scottnoanh/smselectronicssnvoicepcboard/</a><o:p></o:p></p>
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<p class=MsoNormal>These things accept both versions of the chip.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>-Jesse<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>On Jul 3, 2009, at 3:31 PM, Greg Grunest wrote:<o:p></o:p></p>
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<br>
<o:p></o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>I was wondering if someone could tell me what the breakout board
was for. The chip specs posted on the BGmicro site<a
href="http://docs.bgmicro.com/pdf/ics76477.pdf">http://docs.bgmicro.com/pdf/ics76477.pdf</a><span
class=apple-converted-space> </span>show the IC as having standard 10<sup>th</sup><span
class=apple-converted-space> </span>inch spacing (100mils x 600mils).</span><span
style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Has someone seen the breakout board? Is there something
I’m missing? Do I really need it? </span><span
style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Should I have attended Don’s class and then I could make
whatever boards I wanted and therefore control the universe? (insert maniacal
laughter here)</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Probably.</span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'> </span><span style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:black'>From:</span></b><span class=apple-converted-space><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'><a
href="mailto:dorkbotpdx-blabber-bounces@dorkbot.org">dorkbotpdx-blabber-bounces@dorkbot.org</a><span
class=apple-converted-space> </span>[<a
href="mailto:dorkbotpdx-blabber-bounces@dorkbot.org">mailto:dorkbotpdx-blabber-bounces@dorkbot.org</a>]<span
class=apple-converted-space> </span><b>On Behalf Of<span
class=apple-converted-space> </span></b>dan p<br>
<b>Sent:</b><span class=apple-converted-space> </span>Thursday, July 02,
2009 10:28 PM<br>
<b>To:</b><span class=apple-converted-space> </span>A discussion list for
dorkbot-pdx<span class=apple-converted-space> </span>(portland, or)<br>
<b>Subject:</b><span class=apple-converted-space> </span>Re:
[dorkbotpdx-blabber] Synth chip (SN76477) Group Order</span><span
style='color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>ah, thanks. Now that I have my mad
board etching skills (thanx Don) I'll try to make my own...<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>On Thu, Jul 2, 2009 at 7:41 PM,
Thomas Lockney <<a href="mailto:dorkbotpdx@dorkbot.org">dorkbotpdx@dorkbot.org</a>>
wrote:<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>dan p wrote:<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>I think I missed the part about
break out boards?<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>>From Jesse's earlier email:<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>Sweet! Yeah I'll go ahead and put
together a group order for these little guys. I just called and checked stock -
they have "plenty". Apparently the package is a little odd so there
is also a $3 breakout board they offer for it. Let me know if you want it as
well.<br>
<br>
<a href="http://www.bgmicro.com/index.asp?PageAction=VIEWPROD&ProdID=12925"
target="_blank">http://www.bgmicro.com/index.asp?PageAction=VIEWPROD&ProdID=12925</a><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'>_______________________________________________<br>
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<a href="http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber"
target="_blank">http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber</a><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";
color:black'>_______________________________________________<br>
dorkbotpdx-blabber mailing list<br>
<a href="mailto:dorkbotpdx-blabber@dorkbot.org">dorkbotpdx-blabber@dorkbot.org</a><br>
<a href="http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber">http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber</a><o:p></o:p></span></p>
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