[sdiy] Thermal contact of exponential convertor components

[allenre at umich.edu]

What I'm assuming is that, if I intend to use microtonal scaling to any degree
of accuracy then I will want very accurate compensation, right?  I'd also
prefer not to have to calibrate the VCOs _ever_ (maybe that's asking for alot).
=)

Ryan

> Actually, getting the epoxy off isn't that hard....although, never had an
> expo transistor fail (must have made hundreds by now....), I do on occasion
> salvage the Q81K's for reuse.
>
> At 09:01 PM 5/16/2004 -0400, you wrote:
> >While the "quick and dirty" approach seems to be teh most popular, I think I
> >will try the more professional looking heatsink compound with shrink
> >tubing.  I
> >may need to replace the 2SC1583 at some point and wouldn't want to damage
> the
> >tempco.
> >
> >Ryan
> >
> > > Same here....
> > >
> > > At 06:52 PM 5/16/2004 -0400, harrybissell wrote:
> > > >I just use epoxy...
> > > >
> > > >H^) harry
> > > >
> > > >allenre at umich.edu wrote:
> > > >
> > > > > I'm gathering parts for the Rene Schmitz's VCO3, and I am wondering
> if
> > > > I need to
> > > > > use heat sink compound on the transistor array and tempcos, or if I
> can
> > > > epoxy
> > > > > them together.  I'm not sure of the method of applying the heat sink
> > > > compound.
> > > > > The ASM-1 page mentions that "The transistor ans the tempco resistors
> > > > (if used)
> > > > > should be gooped up with heatsink compound... and tie-wrapped
> together,
> > > for
> > > > > best thermal result."  So, should I cover the components with the
> > > compound,
> > > > > then use a plastic tie-wrap to hold them close?  My understanding is
> > > > that the
> > > > > heat sink compound helps to transfer heat, so I only need to apply it
> > > > between
> > > > > the two components (in this case, a tempco and a 2SC1583), and the
> > > tie-wrap
> > > > > holds them together (since the compound is non-adhesive).  Is this
> > > correct?
> > > > > Thanks,
> > > > >
> > > > > Ryan Allen
> > >
> > >          -Jim
> > > ***************************************************************
> > > http://www.oldcrows.net/~patchell
> > >
> > > ***************************************************************
> > >
> > >
> > >
>
>          -Jim
> ***************************************************************
> http://www.oldcrows.net/~patchell
>
> ***************************************************************
>
>
>