1.  All questions are important, none are stupid
2.  No flaming allowed (this applies to the rest of the forum anyway)

That's basically it.  Other than the obvious; read and post often  :tu:

Awesome!  Do you have any sound clips/pics?  Sounds like you've made yourself quite the amp.  It's good to know that those LM1875 kits are going to good use.   

How did you use a LED/LDR setup in a wah?  Can we have some pics of the inside?  And maybe a schematic?  This thing is cool!

Quote from: martyfriedman86 on October 19, 2006, 12:08:25 PM
thanks!
I'll post later when y try it

Thanks a lot

btw, i got the apollo booster to work (the pot wasn't working, please don't hit me)

You'd be surprised how often it is a crappy pot causing problems.  No worries, we won't hit you 

That makes more sense (about the caps).  And as far as being indecisive, no problem, I think it's great that you are designing these.  There isn't really any sort of good SS amp to build right now that isn't a chipamp.

The chip lists a max of 96v, which would be +/-48v, with the tranny you are have you would get +/-56v, too much.  Sorry.

What are you using for a preamp?  And are you using this for guitar as I would assume?

Quote from: Joe on October 17, 2006, 11:23:03 PM
http://www.diystompboxes.com/analogalchemy/tmp/

Pix of inside and front panel, and dirty socks. It's a recycled Fender combo.

This is not how to build an amp, it's a rough test built from junk. I'm not particularly thrilled with the power amp, it works alright but seems it could be better.

I think it looks good, except the large caps sitting on the chassis on the right.  That looks sketchy.  So whats the matter with the power amp?  Doesn't sound good?  That's the part I'm really interested in as I already own a preamp box (marshall DRP-1) and I'm working on a TL071 preamp.

What I mean is, as far as I can tell there is no LED in the schematic.  So where is it located?  Is it just connected to the stomp switch so that it lights when the effect is "on" and is off when the effect is bypassed?  Wiring the switch can be confusing.  If you can't get it right the first time, take out the switch and see if you can get the circuit working properly, then worry about adding in the stomp switch.

How do you guys like your LM1875 kits?  We spread out quite a few kits, it would be nice to know how well they are working.

What LED is this?  I see you have a 3PDT switch, is this the "effect on" LED?  If so, it seems maybe you have your switch wiring improperly.

Well, with that many pots, there is a good chance of one or more of them not being in the "right" position so it wouldn't work.  I would play with those first.  Also, make sure you are plugging your guitar into the right jack, when you have it backwards sometimes pedals will do what you are describing.

Just noticed that looks like a lot of pots to me.  I would try substituting some of them for different value resistors, or even better, go off a proven schematic like this one:



That's the one I used, it has two knobs and works well.

I still wanna see pics :-)