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Looking for schematic and board layout for Radio Shack Model 21-543 DSP 40 Noise Reduction System

I'm wanting to change the switches that select bandwidth and filtering type to pots, if this is possible. Any help is appreciated. Thanks in advance. B.

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Brian O
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--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money"  ;-P
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**THE-RFI-EMI-GUY**

All you ever wanted to know about a DSP-40,

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Let me know if you make any changes. RM~

Reply to
Rob Mills

Reply to
Rob Mills

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