Heavy Metal Boss & some Boss Products IC value

[j0shua]

Hi guys this info is for new Users , as you can see many BOSS SCHEMATICS don't have IC's Values so this is a short list for reference


BOSS HEAVY METAL ( HM-1 )  IC'S ARE 4558 OR ANY TL07X ( DESCONTINUED )

BOSS HEAVE METAL 2 & 3 SAME AS HM1 BUT I LIKE MORE THE TL072

BOSS DS-1 DISTORTION ( ARE NOT KNOW ) IM TRYING TO MOD A OLD ONE WHIT SOME.

BOSS TURBO DISTORTION ( NOT USE IC'S ) JUST A BUNCH OF TRANSISTORS, BUT ALL OF THEM ARE ON NTE BOOK

BOSS MEGA DISTORTION ( I WISH TO HAVE THE SCHEMATIC ) DISCONTINUED PEDAL

DOD TRASHMASTER USE TL072 , 4558 WORK VERY WELL TO

I MOD THE MXR LM741 OP AMP TO LM308



HAVE FUN!

THE DOD TRASH MASTER USE

[LP Hovercraft]

Though I have seen a variety of JRC IC's mounted in Bosses, I have also noticed some rather exotic part numbers at times when opening up Boss pedals IE:  all numbers and no letters.  Mainly the Delays and Mod effects.  I have yet to do a Boss project due to complexity/cost intimidation.  

I made an MXR Microamp using an NE5534 and it, too, was way less noisy than the 741.  I'll have to try that part # you suggested.  Have you seen that thread detailing the piggybacking of opamps?  I'd love to try that sometime.  4558 soldered directly pin for pin on top of a TL072, etc...