Category Archives: Knowledgebase

Switching: Relay True-Bypass – Circuits not using a microcontroller

There is one drawback in using microcontrollers: They need to be programmed. If you dont know how to do this or if you dont want to use them at all. What are the options?  I had to dig very deep into electronics history to bring up the following circuits. They have been verifyed working and […]

Switching: Relay True-Bypass – Circuits using a microcontroller

  What is a microcontroller? A microcontroller is a device that can be programmed using a programming language (like C) and has a wide variety of input/output ports (pins). Those ports can be input and detect the state of switches (On/Off), read analog voltage or they can be output and set ports to On/Off, give out […]

Switching: Relay True-Bypass – avoiding mechanical issues

Pro’s and Con’s of using mechanical switches What is wrong with using mechanical switches? There is nothing bad about using mechanical switches as a True-Bypass in effects as long as you are aware of the drawbacks: Drawbacks of using a mechanical switch: there is mechanical noise when pressing the switch (especially with some 3PDT models) […]

Switching: A Buffered Bypass – the historic original

The history of Buffered-Bypass Most pedals that exist for a long time have Buffered-Bypass switches. Just because 3PDT switches were unknown or unaffordable at that time and no one knew how to do effect switching and switching an indicator (LED) with just a 2PDT switch. Tech people and circuit developers used what they had at […]

Switching: Mechanical switches & standard wiring diagrams

The mechanical switch (2PDT, 3PDT): The easiest way to switch your effect On and Off is to use a mechanical switch. Usually a 2PDT (two pole double throw) switch is sufficient to do the job but usually a 3PDT (three pole double throw) switch is used to allow switching the LED indicator directly as well. […]