An effects novice building a blender/TB pedal

[FoHBass]

I've decided to redo my pedalboard, and build four separate TB loops with blend knobs on each. I somewhat understand how to work the 3PDT switch into the circuit, but get kinda confused looking at the schematic for seanm's B. Blender. I also, if possible, would like to wire an indicator light for each loop, powered by AC power (would have a daisy chained PSA-120S for this, separate from the power to the pedals). I do have experience with an iron, from rewiring guitars and basses, just am a little rusty on reading schematics.

Does anyone have a legend for the different symbols in seanm's schematic? Also, is a PCB necessary for this? I'd want the whole unit to be as compact as possible to save as much board space as possible.

edit: I forgot to ask, what's the best place to buy the supplies?

[Hookus]

All of the symbols on that schematic are pretty standard. Wikipedia will give you all the info you need.

Pretty much any opamp will work, Radio Shack sells a TL082 dual opamp that will work in that circuit. Even on a perfboard, that circuit will be about 1.5 x 1.5 inches, so, pretty big. There is a perfboard layout floating around online somewhere. I may have it. If I find it later, I'll send it to you. That circuit is pretty straightforward, but will take a decent sized enclosure. You can do it with, without, or with both an AC adapter and battery, since the power supply for the opamps and LED's are both 9 volts. Radio Shack has everything you need for it besides the pot. I buy pots, enclosures, and switches from pedalpartsplus.com

[i2k]

Originally Posted by FoHBass

Does anyone have a legend for the different symbols in seanm's schematic? Also, is a PCB necessary for this? I'd want the whole unit to be as compact as possible to save as much board space as possible.

Is this compact enough : http://gaussmarkov.net/wordpress/circuits/b-blender/