DIY Prototyping Board nearly completed

[AniML]

Now that I have gotten back into some pedal builds, here is a prototyping board I just put together. The black box has a 9V battery inside and external switched 9V jack. Switch is a 3PDT, but a toggle instead of a footswitch since it is tabletop. Unlike most effects pedals, power to the board also goes through the switch to power down the breadboard and/or any circuit connected to the orange quick connects.

The SAG control (Beavis dying battery sim) allows DC power drop down to ~3V. The GAIN control is simply a variable 50K resistor to reduce the input signal.

I still have a few minor items to finish (wire strain relief, mount the box etc) but it is working..

(sorry for the shadows)

 

[playas]

Nice. Very organised.

 

[jeremy]

why 50k for the volume control?

 

[AniML]

why 50k for the volume control?

It's not a volume control like on a guitar. It just uses the wiper and 1 lug as a variable resistor to attenuate signal - i.e. 3rd lug does not go to ground That said, I may try other values and may add a switch to opt between a grounded vol pot, or variable resistor. I am not how useful it may be, but it is there to try . If it is not useful enough, I will move it to the end of the circuit and try it there - more as a true volume (loudness) control.