Hey scott,
Here are all of the part substitutions. I think these should all work
no prob.
LF356 > TL071s,
LM394>ssm2010 (Ray Wilson lists this as a good replacement for the
LM394)
1Ktempco>standard 1K resistor
1N4148>1N914
input "beads">10ohm resistors
I used a 2N4091 for my FET (which is what he says he uses in the
circuit description).
I checked all of the polarities, jumpers and other connections...no
prob. Before I wrote I noticed that my diode was in backwards. I was
excited thinking
that this must be the source of the problem,,,, I flipped it around
and their was absolutely no noticeable change in performance :(
How do you switch between filter and osc. when this is working
correctly?
-pete
On Apr 3, 2007, at 9:14 AM, <contact@...>
<contact@...> wrote:
Here are all of the part substitutions. I think these should all work
no prob.
LF356 > TL071s,
LM394>ssm2010 (Ray Wilson lists this as a good replacement for the
LM394)
1Ktempco>standard 1K resistor
1N4148>1N914
input "beads">10ohm resistors
I used a 2N4091 for my FET (which is what he says he uses in the
circuit description).
I checked all of the polarities, jumpers and other connections...no
prob. Before I wrote I noticed that my diode was in backwards. I was
excited thinking
that this must be the source of the problem,,,, I flipped it around
and their was absolutely no noticeable change in performance :(
How do you switch between filter and osc. when this is working
correctly?
-pete
On Apr 3, 2007, at 9:14 AM, <contact@...>
<contact@...> wrote:
> Any component substitutions?[Non-text portions of this message have been removed]
> 99% of the time it's a polarity, wiring or trace problem, at least
> with me :)
>
> Cheers,
> Scott
>
> ----- Original Message -----
> From: casperelectronics
> To: cgs_synth@yahoogroups.com
> Sent: Tuesday, April 03, 2007 12:54 AM
> Subject: [cgs_synth] bi-n-tic filter...help!
>
> I just finished building the bi-n-tic filter and I don't seem to be
> getting any osc. output. The filter works great, bandwidth and damper
> do what they are supposed to do but the frequency controls don't do
> anything. Anyone have much experience with this circuit?
>
> [Non-text portions of this message have been removed]
>
>
>