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Signal Pad | Passive Attenuator - Electro-Harmonix
Rex and the Bass: Cave Passive Pedals: Grunt Review
Volume Guitar Pedal - Be Quiet! - Passive Attenuator -True Bypass | Reverb UK
Here are a couple more - the simple passive tone control that can be added to any circuit or used as a simple pas… | Diy guitar pedal, Diy guitar amp, Guitar pedals
Electro-Harmonix Signal Pad Passive Attenuator Pedal - YouTube