Wet/dry Parallel Processor

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mediatechnology
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Re: Wet/dry Parallel Processor

Post by mediatechnology »

Wet Dry Mix Add Parallel Processor PC Board Preview]

I had to take a long break from this project while I assembled some PC boards to replace sold inventory. With that mostly done I've begun the layout.

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Wet Dry Mix Add Parallel Processor PC Board Layout

The board is the same size as the MS Mini which is 3.7 x 2.75".

Wet and Dry inputs are on the left.
IC5 and IC6 buffer the Mix/Add pot or stepped switch.
IC7 and IC8 is the summing amp with optional variable make-up gain.
IC9 and IC10 buffer the Mixed output.
RY1 selects Mix/Add.
RY2 provides soft bypass functionality.
J1 and J2 select the bypass input source which can be either the Dry or Wet input.
J3 and J4 when open allow a gain trim pot or switch to control make-up gain.

I need to tweak the layout and check it a bazillion times and conform the schematic to the layout but the hard work is done.
It pays to get away from it for a few hours and then look at it over and over.
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mediatechnology
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Re: Wet/dry Parallel Processor

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Updated schematic for the Wet Dry Mix Add Parallel Processor

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Wet Dry Mix Add Parallel Processor Updated Schematic
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In order to conserve PC board real estate I removed the passive loop-through connectors for the Dry signal and simplified the gain trim stage.

I'll now check the PC board layout comparing it to the updated schematic.
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mediatechnology
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Re: Wet/dry Parallel Processor

Post by mediatechnology »

First run of boards for the Wet Dry Mix Add are on order.
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mediatechnology
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Re: Wet/dry Parallel Processor

Post by mediatechnology »

Well the boards came in let's see if they run...

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mediatechnology
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Re: Wet/dry Parallel Processor

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And it runs...

Image

I'll have several of these for sale as bare boards. PM or email me if you're interested.
Fragletrollet
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Re: Wet/dry Parallel Processor

Post by Fragletrollet »

This is so cool! I'm up for a couple of boards 8-)
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mediatechnology
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Re: Wet/dry Parallel Processor

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