Anyone ever build the Boss GE-7 EQ pedal?

[miqbal]

As you know, probably the most well known schematic for BOSS GE-7 EQ schematic it the PDF from Jon Halverson. He also said about the lower noise mod (OPA134 chip). Does any one ever made this mode, I really wonder on how to modify the schematic so I can use the OPA134, I hope you can share your knowledge and opinion..

PS: the original chip is HA12017/HA1457W. Both is SIP, and probably obsolete. Actually I prefer to build the IBANEZ GE9, but the schematic that spread around is somehow in poor scanned quality. The lots of the component value are unreadable.

Thanks for advance..

[Processaurus]

Hi, the danelectro fish n chips is apparently a GE-7 modded for lower noise.  The slots for slide parts are a difficult for the average DIYer to make.  Might be better to buy one, if the goal is just to get a nice 7 band EQ, I got one off ebay for $15...

[notrinos]

HI! Sorry! I just speak a little english, I'm from Viet Nam. I'm building Ge7 too, I can't found AH 12017 or OPA 134=> Remove pre emphasis 3db at 2khz. Input conect to Pin5 of RC4558

[notrinos]

HI! Sorry! I just speak a little english, I'm from Viet Nam. I'm building Ge7 too, I can't found AH 12017 or OPA 134=> Remove pre emphasis 3db at 2khz. Input conect to Pin5 of RC4558