3 Channel Splitter
Posted by Padster39 on Mar 18, 2025; 12:39am
URL: http://guitar-fx-layouts.238.s1.nabble.com/3-Channel-Splitter-tp51203.html
This is a modified layout based on the 3 Channel Splitter/Mixer layout created by IvIark found here
This layout just splits a single input audio signal into 3 buffered output signals and omits the mixer circuit from the original layout.
Volume controls can be added to each output using a standard potentiometer as shown (Note that in the layout the pot shaft is facing you, and with that pinout turning it clockwise increases volume). The original circuit calls for linear taper pots, but logarithmic pots may be more suitable for volume controls.
The value of the 100nF capacitor may require adjustment depending on the type of instrument or audio signal input. Lower capacitances will filter out bass frequencies further, while higher capacitances will let more bass through. As rough values I'd say avoid going go below 22nF or above 470nF but if I get a chance I may experiment and runs some tests.
As the remaining op-amp is not used, this layout could be further adapted to a 4 Channel Splitter. There is also scope to create a layout for a 2 Channel Splitter using an 8 Pin Op Amp. If either of these would be of interest, leave me a comment.
Please note this layout is unverified and as this is my first upload here, I anticipate issues. If I find the time, I will build one myself to verify and run some tests.
Layout:
Reverse board (for the Cuts):
Schematic: (is the least I could produce given it's modifying an existing layout)
URL: http://guitar-fx-layouts.238.s1.nabble.com/3-Channel-Splitter-tp51203.html
This is a modified layout based on the 3 Channel Splitter/Mixer layout created by IvIark found here
This layout just splits a single input audio signal into 3 buffered output signals and omits the mixer circuit from the original layout.
Volume controls can be added to each output using a standard potentiometer as shown (Note that in the layout the pot shaft is facing you, and with that pinout turning it clockwise increases volume). The original circuit calls for linear taper pots, but logarithmic pots may be more suitable for volume controls.
The value of the 100nF capacitor may require adjustment depending on the type of instrument or audio signal input. Lower capacitances will filter out bass frequencies further, while higher capacitances will let more bass through. As rough values I'd say avoid going go below 22nF or above 470nF but if I get a chance I may experiment and runs some tests.
As the remaining op-amp is not used, this layout could be further adapted to a 4 Channel Splitter. There is also scope to create a layout for a 2 Channel Splitter using an 8 Pin Op Amp. If either of these would be of interest, leave me a comment.
Please note this layout is unverified and as this is my first upload here, I anticipate issues. If I find the time, I will build one myself to verify and run some tests.
Layout:
Reverse board (for the Cuts):
Schematic: (is the least I could produce given it's modifying an existing layout)
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