[sdiy] VCF caps in modern synths
electrocontinuo at gmail.com
Wed Mar 24 16:14:42 CET 2021
Volume discounts from the fab? I think Behringer is the fab, no? Last I
checked they own a whole city in China:
On Tue, Mar 23, 2021 at 10:07 PM Michael E Caloroso <
mec.forumreader at gmail.com> wrote:
> "I'm going to guess that these PCB were made to handle both so that
> volume discounts on the board fab could be obtained."
> Another guess is to resolve supply issues. If one is out of stock,
> the other can be substituted without halting production.
> On 3/23/21, Brian Willoughby <brianw at audiobanshee.com> wrote:
> > On Mar 23, 2021, at 16:28, Gordonjcp wrote:
> >> On Tue, Mar 23, 2021 at 03:15:53PM -0400, ColinMuirDorward wrote:
> >>> Here is a little update to this topic.
> >>> Some good people at GS have photographed the VCF section on two behri
> >>> 2600
> >>> versions: orange/black and grey.
> >>> You can see that in orange, they used SMD ceramics, and on grey, yellow
> >>> box
> >>> film.
> >>> Lucky for us, the orange version has empty through-hole footprints!
> >> Interesting. So are they selling a special version for the coke-addled
> >> audiophools who reckon that they can hear the difference between
> >> through-hole and SMD components?
> > Not every capacitor formulation is available in all package variations.
> > I happen to prefer SMD - not for sound but for convenience of
> > However, certain kinds of capacitors that are ideal for Sample and Hold
> > simply aren't available in SMD, so my PCB designs include placements for
> > both through-hole and SMD. This way, I can try out the cheaper C0G to
> see if
> > they hold as good as I need for the S&H refresh timing that I can
> > I'm going to guess that these PCB were made to handle both so that volume
> > discounts on the board fab could be obtained. Then, if a particular
> > needs through-hole it's available.
> > Brian
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