[sdiy] percusion synth design and problems.

[John L Marshall]

The downside of wide bandwidth amplifiers. Solutions: proper shielding,
proper grounding, ground all unused inputs, additional power supply
bypassing, and low pass filtering.

How close is the AM station to you?


Take care,
John
www.sound-photo.com
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----- Original Message -----
From: "Arun Bohm" <arun_bohm at hotmail.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, April 13, 2003 2:23 PM
Subject: [sdiy] percusion synth design and problems.


>
> Hi, Was working on this here percusion synth idea and was wondering why,
> instead of damped oscillations, I was getting so much noise. Because I am
a
> novice, I am used to making the mixing stage from manuals I got from radio
> shack(don't laugh, please) the amp I use is a utility amp using a 386
chip.
> The end result is all this RF transmission (I actually get some AM
station)
> and a bunch of noise. What can I do to eliminate this problem? Any
> suggestions would be appreciated.
> arun_bohm at hotmail.com
>
>
> _________________________________________________________________
>
>