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I did find that when I had initially all set them to 4.5v it sounded pretty good. Sometimes I wasn't sure if I was making it sound any better by messing with them

Yeah, thanks. I think I need to spend a little more time with that one

Ok, I have taken the old transisotrs out and put in the new ones. I have been able to get it working, it has quite an open amp like sound however its not particularly high gain, boosts really nicely but I would describe it as moderate gain maybe, is that true to what everyone else has got from...

Thanks, I'll look it up, I've got one of those TC1 things, however I'm really enjoying the building process and will definitely be building more, it's pretty addictive. Might be time to get serious.

Red Dot was the Collector, I should use that little tester more often!

Thank you, I do have a little tester, I'll put it in, can work it out from the schematic from there I guess

Thanks guys, I didnt realise that these pedals were that close to the originals. Good pedal, this one, nice transparent boosty overdrive.

Ok, so the collector lines up with the notch/key thingy on the silk screen on the pcb?

Hi all, Just working on a duocast, I have sourced a transistor for the OC-71 position, accept I've never used on of these before and I don't know which way around it goes. There is a red dot on the side of it that looks like it's been drawn on. Photos attached, please help me! Also I'm having...

Great! Really appreciate all the time you have put in to this and all the help you've given! Hopefully I'll have the new transistors in a week. Most likely ill be back here when they do. I've got a Stockade and a Duocast to get into in the meantime, possibly being ambitious.

That's a brilliant idea! I was dreading having to pull them out because I'd have to get rid of the pots too. So theoretically they can be soldered to the little surface mount PCB?

yep, plastic dust covers, learnt that lesson on the first build!!!

Ok, had a play around with it and no amount of tweaking to the trimpots gives me any more than the faintest almost in audible signal, do you think I have another problem or am i wasting my time till I replace all the transistors?

No not yet, away today, won't be home till very late tonight, might not get time till tomorrow, but looking forward to giving it a go. Stay posted!

Legend! Apreciate all the help. I will definitely put new transistors in it when the SMD ones arrive. I had just finished building a cobalt drive which has 4 J201's in it. I doesn't sound too bad, do you think it would sound better with new transistors in it too?

Ok, I will give it a shot, I'ts not in the enclosure at the moment, as I've been messing with it, and I'll probably change over the transistors when the new ones arrive, that won't make a difference to me tuning it up will it?

Ok, got the transistor out, socketed the holes and put in the only J201 I have right now, I was able to bias it down pretty close to 4.5V. The others are almost smack on 4.5V apart from bottom right tone pot. I have pass through when off, but only the faintest sounds when all pots are dimed to...

Yes, I have continuity in all of these spots

I need to check it out, I'm getting a little better with kowing what I need. Does it work out to be cheaper in the end?

Thanks guys, we do happen to have some quality psych rock! Mouser and digikey intimidate me a bit, never sure what I'm buying, I have just been using mostly tayda, but I think it's probably time to man up and just go with it.