[sdiy] Star Instruments Synare 3 pot tapers?

Neil Johnson neil.johnson71 at gmail.com
Fri Oct 23 10:36:44 CEST 2020


Hi John,

> http://www.synfo.nl/servicemanuals/Star/SYNARE-S3_REPAIR_MANUAL.pdf
>
> there is mention of "C1M" pots in the oscillator section (CD4093
configured as Schmitt Trigger inverter RC oscillator), and "D1M" pots in
the EG section.
> The BOM at the end of the document vaguely mentions "two different
tapers".
> Does anyone have any experience with this model? (a center position pot
reading would be real handy for the tune and decay pots)

Those look like 1M pots with C and D tapers.  You can google around for the
info, here's a handy chart:

[image: image.png]
(from http://part.freelab.jp/image/VRcave.gif)

C is reverse-log, typical for EQ circuits, while D is a more extreme audio
log taper.

Cheers,
Neil
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20201023/aad862d0/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 18050 bytes
Desc: not available
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20201023/aad862d0/attachment.png>


More information about the Synth-diy mailing list