Warning: n00b alert!

Since you electronics types seem to love water analogies... For years, I've been standing on the bank of the River Electronics, wanting to stick a toe in the water and finally start to really learn about circuit design. I have decided, the time is nigh. So, I am jumping in. My main goal is to eventually design and create my own vacuum-tube based guitar amplifier circuit. For now, though, I will just be focusing on the basics, and building some simpler and MUCH safer, low DC voltage guitar pedals. I have bought a breadboard, some jumper wires, and using the parts list and schematics of some of my favorite guitar pedals, I've placed a descent sized order with Jameco, Digi-key, and Stewart McDonald for all the passive electronic components I will need to start bread-boarding.
The biggest challenge I've faced so far is the nebulous conventions and size variations of everything. I know that I want to be able to hook up potentiometer to my guitar pedal circuits without having to solder and unsolder them. I do not know, nor can I find what size push-on spade connectors I'd need to do that. The company that makes the pots is called CTS Corp, and they have great technical drawings of their pots online, but do no give the lug dimensions. Do any of you guys know?

 

I know that I want to be able to hook up potentiometer to my guitar pedal circuits without having to solder and unsolder them. I do not know, nor can I find what size push-on spade connectors I'd need to do that.

Forget it. Learn to solder. You're wasting your time trying to find push-on connectors, as I doubt that any exist.

If you want to make some pots "breadboard compatible" the best thing to do would be to sacrifice some breadboard jumper wires and solder them to the pot's terminals. Then you'll be able to plug and unplug the pots from your circuit at will, with no further soldering.

 

They don't give dimensions because those connection points are not designed for push on and off connections. They're too weak to withstand the connecting and disconnecting of spade lugs. As @OBW0549 suggests, you're going to have to either solder some wires on or, or as I have done, solder a connector scrapped from some other board and make your own plug in modules. I'd shoot a picture but the photography stuff is upstairs and I'm comfortable where I am.

 

You may be able to use an 1/8" push on female connector. They can be a bit tight, and you run the risk of bending the male lug. Measure the outside dimension of the loop and that will give you the push on size. A slightly larger connector will fit better than one that is too small. The curled lips on the female connector can be sprung open with anything that is tapered (e.g, a scribe or awl) so they push on more easily.

 

Termination style is specified as "Solder lug"