====== Test box ======
Found a big aluminum enclosure at the [[https://www.baco-army-goods.nl/|Baco]] perfect for a test box. Based it on this [[https://tagboardeffects.blogspot.com/2014/09/test-box-20.html|article]] and some bits from this [[http://guitar-fx-layouts.42897.x6.nabble.com/Stripboard-Breadboard-Interface-for-beginners-td5260.html|forum thread]]. And had a big DPDT lying around I could finally make use of. But since it's a DPDT and I've used it as a true bypass switch I've added a [[https://tagboardeffects.blogspot.com/2014/01/millennium-bypass-2.html|Millenium Bypass]] so it also switches a LED.

===== Millenium Bypass =====
For switching a LED with a DPDT switch I added a Millenium Bypass circuit.
{{gallery> :builds:vero:millenium_bypass_2.png?lightbox&600x400 }}

===== Probe/oscillator =====
I'm planning to add a switch to enable probing with guitar input or with a simple oscillator based on a 555 timer chip.
{{gallery> :builds:vero:simple_555_oscillator.png?lightbox&600x400 }}