NLC1025 Double Penetration Filter

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NLC1025 Double Penetration Filter

 

NLC1025 Double Penetration Filter

Everybody loves the Moog ladder filter, right? TB-303 etc..... 
And everyone loves the EMS diode ladder, the Pink Floyd characteristic synth sound, yeh? 

So what happens when we mate these two filters? 
No, I don't mean what are the offspring like 
Lets just see them in coitus! 

This circuit replaces the diodes and transistors of the ladders with opto-isolators. 
The interesting effect is that the transistor filter does not need an audio input, 
The audio from the diode ladder is sent across as infra-red light and turns on the transistors. 

There are outputs for each filter, plus summed output and a difference output. 
The difference output is quite unique, never heard anything like it. 

more documentation: nlc dp filter documents

There is a switch to swap the resonance feedback paths between the filters 
which tends to make thing go a bit nuts. 

Module Parameters
FormatEurorack

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  • Ex Tax: $40.00

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panel
Out of Stock - $20.00
 
 
pcb
In stock / $18.00
Available : 4
 
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Out of Stock - $40.00
 
 
synthCube kit
Out of Stock - $79.00
 
 

Tags: nlc, nonlinearcircuits, eurorack pcbs, (nlc)