I just finished up my first Veroboard build for my son, we were talking about classic effects awhile back and I mentioned the Distortion + and the DOD 250 overdrive. I got him a Rat (Chicago Stompworks) and an Ibanez Tube Screamer awhile back, but he was curious about the DOD 250 as he knew I had a Stompworks clone. I have been getting more into building lately, the latest being a BYOC FA-1 preamp, so I took the plunge into the Veroboard world, thanks to the DIY forums and Tagboard Effects. I figured I'd make him his own DOD 250 clone, so I used one of the Tagboard Effects layouts. It sounds great, maybe even better than the pedal I already have. Both have uA741 opamps and "gray spec" layouts. A couple of surprises, I socketed the clippers so we could try out a bunch. I have a stash of all kinds of diodes, so I started with the classic 1N4148s, tried a bunch of other 1N4xxx, some 1N34a's I have had stashed since the early 80s, Soviet D9's (K I think), and some cheapo 3mm LEDs. He liked the classic diodes, but loved the sound of LED clippers better. Smooth and 'glassy', not too harsh which I figured they would be. There was enough of a difference between red and green that he chose green. Another mod was a 120pF cap that wasn't in the original pedal, a 25pF was installed later in the reissues but the early schematics I've seen (and reflected in the Tagboard layout) had 120pF. I didn't have a 120 ceramic, but I did have a silver mica stashed from who knows what. Maybe that's why the LEDs sounded so good. I also tried a linear Level pot and liked it a little better than the audio taper. I finally got it boxed up in a 125B last week, and tore it back down to paint. He asked for blue, so I used a Testors lacquer. The decal is just clear Avery address label with Krylon clear. Came out OK, and he's got it plugged in now doing some recording so he's happy. I've just dug a hole that I will be in a long time now that I can build just about anything I can find a layout/schematic for! Here's the final result with my gray box Chicago Stompworks version: You can see underneath what I'm building next, a Fuzz Dog "Llamatron"