2n5457 static protection diode

[italianguy63]

Traces at Q1 are all cramped too...  MC

[antonis]

Pretty small holes and pads for components, there.

And super extra tiny traces...
(risky for toner transfer and waste of etching solution and time...)

@ acehobojoe: You have to "play" a little with your own custom settings...

[acehobojoe]

what is a good pad size and hole size for average components?

[armdnrdy]

what is a good pad size and hole size for average components?

It depends on how component "busy" your board is. Same with trace size.

There are tutorials on the web..and R.G. wrote a book on the subject: PCB Layout For Musical Effects
http://www.goodreads.com/book/show/15747109-pcb-layout-for-musical-effects

http://smallbear-electronics.mybigcommerce.com/pcb-layout-for-musical-effects/

[bloxstompboxes]

I have R. G.'s book and can vouch for its excellence. Really educates or reminds you of the stuff you learned in school and the stuff you didn't. I use .08in outer diameter for my pads and .02in width on traces. I etch though so you could go smaller on the trace width for fabbed boards, and maybe even on the pad diameter. I just use that size diameter so I can drill most pads with a #59 bit and not have worry about whether the leads on a component will fit or not. I hate changing to a lot of drill bits throughout a project.

[acehobojoe]

I'm getting that book! I must have it. 

[acehobojoe]

Where do I find it?

[bloxstompboxes]

Steve should have it at smallbear. http://smallbear-electronics.mybigcommerce.com/pcb-layout-for-musical-effects/

A bit expensive but I guarantee you'll like it and learn a lot. It is a little dated as far as the enclosures it talks about and software available but it's still awesome.