newbie's first VCF design. help please!
Darren.Inwood.1 at uni.massey.ac.nz
Darren.Inwood.1 at uni.massey.ac.nz
Fri Aug 22 01:24:35 CEST 1997
okay, will this do what I want it to? if i'm obnoxious please tell me.
i don't know exactly how a cv could be used here, what kind of voltages
produce what kind of resistances on a FET etc.
if anyone wants to tutor me they're quite welcome!!! (mmm-hmm.)
i think this should provide a path to ground for the higher freq's
(choose better c1&2 value) but won't that change the depth as well as
the frequency?
:)
thanks
---------
darren
follower of the envelope!
o-----------------------*---------------o
+Vcc V C F ? |
======= |
10k |\| TL-071etc...
o--*--\/\/\---------|+\__*____________o
input| ,--||--|-/ | | output
| | 6.8nF|/| < 4k7 |
> | C1 | > |
100k< | | | >
> |---*----||-----" < 10k
o--|-----|---. 6.8nF| >
cv | FET | C2 | |
o----*---------*--------*---------*-----o
0V 2N3819etc
oh yeah, you need a fixed-width font like courier to see ascii art.
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