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<DIV><SPAN class=250344322-16122004><FONT face=Arial color=#0000ff>If the
transistors you are compensating are from an ic package (i.e. 'MAT04' CD3046)
you can just mount the SMT tempco under the chip with intimate
contact.</FONT></SPAN></DIV>
<DIV><SPAN class=250344322-16122004><FONT face=Arial
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=250344322-16122004><FONT face=Arial
color=#0000ff>regards,</FONT></SPAN></DIV>
<DIV><SPAN class=250344322-16122004><FONT face=Arial
color=#0000ff>p</FONT></SPAN></DIV>
<DIV><SPAN class=250344322-16122004></SPAN> </DIV>
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
owner-synth-diy@dropmix.xs4all.nl [mailto:owner-synth-diy@dropmix.xs4all.nl]
<B>On Behalf Of </B>damion@poweracoustics.org<BR><B>Sent:</B> Thursday, December
16, 2004 2:06 PM<BR><B>To:</B> Laxt57@aol.com<BR><B>Cc:</B>
synth-diy@dropmix.xs4all.nl<BR><B>Subject:</B> Re: [sdiy]
Tempcos<BR><BR></FONT></DIV>If you go to digikey.com and type CDCT-ND into the
search box, you'll get a bunch of values that they have available.<BR>They're
all about 55 cents each with a minimum order of 10.<BR><BR>They're very small,
so I wouldn't recommend using them unless you're comfortable with your soldering
skills.<BR>You want them in physical contact with the transistors, so I
carefully soldered very thin & VERY flexible leads to each side of the
tempco.<BR>Depending on your application, you then solder the ends of the leads
to wherever they go in your circuit and carefully arrange them in contact with
the appropriate transistors. I used a little gob of heatsink compound and held
it all together with a very small ty-wrap. <BR><BR>I actually wasn't too
thrilled with this method, but it seemed to work ok.<BR><BR>This has all gotten
me to think about having a batch of miniature pcbs made.- with pads to mount one
or two of these tiny tempcos and holes for wire leads. These could be so small,
that I think they'd be cost effective, and maybe solve this tempco problem for a
lot of us...<BR><BR>Does any of this make sense?<BR><BR>Damion<BR><BR><BR>On Dec
16, 2004, at 1:44 PM, Laxt57@aol.com wrote:<BR><BR>
<BLOCKQUOTE><?fontfamily><?param Arial><?x-tad-bigger>Hi Damion<?/x-tad-bigger><?/fontfamily><BR><?fontfamily><?param Arial><?x-tad-bigger> Hey
tell me about the surface mount tempcos. By
that<?/x-tad-bigger><?/fontfamily><BR><?fontfamily><?param Arial><?x-tad-bigger>I
mean where do you get them from and how to
mount<?/x-tad-bigger><?/fontfamily><BR><?fontfamily><?param Arial><?x-tad-bigger>them?<?/x-tad-bigger><?/fontfamily><BR><?fontfamily><?param Arial><?x-tad-bigger> I
hope to hear from Ray/Jay/Jason,but have not yet.<?/x-tad-bigger><?/fontfamily><BR><?fontfamily><?param Arial><?x-tad-bigger>Jeri<?/x-tad-bigger><?/fontfamily><BR><?fontfamily><?param Arial><?x-tad-bigger> <?/x-tad-bigger><?/fontfamily><BR><BR></BLOCKQUOTE>damion
romero<BR>damion@poweracoustics.org<BR>http://poweracoustics.org<BR>http://p-tapes.com<BR><BR>
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