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No,they were so cheap it is not worth the hassle.That was the reason why I took a chance.They measure 2.4k resistance between pin 1/5 ,for what i've heard they are probable relabeled 741s. Aharon

Yes,I have to but I have a whole bunch that are fakes for now, when I get my hands on real ones I will. Aharon

Just tried them on my Pandora's box I only had two from way back when, sound similar to the OP07 as expected maybe a tad splashier if I can say that, also a tad less hissy.I will also try hamerfan's favorite TLO71 and also have a couple of Ua71 that will test. Aharon

True,I just wanted some opinions because I've been searching on Google and forums and people hardly ever mention LM307. Thanks for pitching in. Aharon

Thanks everybody Aharon

Are these any good for Expandoras and Rats? Thanks for any info Aharon

I forgot to tell you a few details, used the 07 chips,I have others but decided to go for something sure to work from the get go and experiment later after it's working. For the transistor I only had 2N4403 and it's pretty close to the 3906,so it works fine.The rest is pretty much standard...

Guys I'm pleased to announce that I have just completed successfully a Pandora's Box ,sounds very good to my ears, really meaty distortion. Everything works all switches and pots. I wanna thank you guys for the PCB and help getting this done. Thanks Aharon:)

Also just found the tutorial from Jovi Bon Kenobi, very instructional, thanks also for posting it. Aharon

Awesomely fast response ,thanks a million Robert. Aharon

Hi everybody, my name is Aharon I'm new to the forum and recently I got a Pandora's pcb and Im slowly populating it , just about down to the last few components.I'm not a total noob but I'm having trouble figuring out where do the grounds of the input and output jacks go .The top of the pcb has...