Finally finished my tremolo - with pics

[Hal]

The tremolo uses the dual op-amp LFO, for a triangle wave to a high resistance LDR in the gain stage of an inverting op-amp.  The gain op-amp is a burr brown (thanks, TI!) I think it sounds pretty awesome.  The depth control is a 5k pot across the LED and the other pot is speed.  It has already left the building, in its not quite finished stage, but I might ask for it back to finish it.  It was a birthday present for my friend, but I think I wanna make one for myself soon...I bought doubles of everything. here we go!


The soldering isnt as bad as it looks, its a terrible picture.  Yes, I love those boards.

totally stole that idea, but its awesome.  The end caps are fence caps.  I got the pipe for like $3 from home depot, and cut it in half - that piece (of _really_ heavy iron pipe) was under $2.  Score.  The rest of the parts totalled under $20, I think.  Good stuff :-D

[MartyMart]

That looks very cool !!
Er, how do you keep it from "rolling away"  ??

Marty

[guitarhacknoise]

 forget about taking that on the plane!
not to mention you could really shake up the post office with that thing!
-matthias

[Hal]

as of now, it rolls.  I was gunna put 4 screws as "feet" but I had enough troube trying to get the switch and pots semi-straight, that I realized tahts impossible.  I think im gunan screw on a wood block at some point.