LM13600

[tomg]

Here is a mp3 I made of the vcf8c. Same song off the radio, same res
setting on the filter. I start with it open, close it then open again for
both types.
You can here the song jump where I turn it off and swap the chips. The fist
half is 13600 the second half is 13700.  You can hear the difference. I
could
have added a little more res to the 13700 to make it sound more like the
13600 but the object was to compare the sound.


http://www.xavax.com/efm/diy-pcb/vcf8e/pics/vcf8-3.mp3

-tg



> >Tom G has a VCO which doesn't work with the LM13700... but says the
>LM13700
> >is OK for the MS-20 VCF design...
>
>And I say the 13700's I've tried do *not* work in the (unchanged) Korg
MS-20
>VCF design.
>I have tried, and the 13600's are good, but 13700's no good. The filter
>still works, granted,
>but you get excessive thumping with the 13700.

>JH.