[sdiy] Debugging Hammond filter circuit
cheater cheater
cheater00 at gmail.com
Sun Apr 25 02:03:00 CEST 2010
Hi Aaron!
My simple guess: take a working, well-known, run of the mill high
pass, and try putting *that* in the general topology you got there.
Try getting that to work correctly. Then substitute the esoteric
highpass.
Cheers,
D.
On Sat, Apr 24, 2010 at 21:08, Aaron Lanterman <lanterma at ece.gatech.edu> wrote:
>
> On Apr 24, 2010, at 3:04 PM, Aaron Lanterman wrote:
>
>>
>> On Apr 24, 2010, at 9:20 AM, Paul Schreiber wrote:
>>
>>> b) I would replace the TL072 (too high a BW) with a LM358 or other "bad" (low gain-bandwidth) dual op ap. The *last* thing you need here is a fast, wide-band op amp.
>>
>> Kaylah, give this a try... I recall you were using TL072s, so you can (doublecheck pin out) probably swap a couple of 741s in their place.
>
> Sorry, I meant TL071s.
>
> - Aaron
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