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Sharkfin opamp substitution

Started by aballen, September 13, 2013, 02:13:38 AM

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aballen

Is it safe to replace the lm741 opamps with lm741 op amps?


jimilee

Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

das234


hammerheadmusicman

I play Guitar, and Build Stuff..

RobA

Affiliations: Music Unfolding (musicunfolding.com), software based effects and Rockā€¢it Frog (rock.it-frog.com), DIY effects (coming soon).

Haberdasher

haha he probably meant ua741 or njm741, both of which should work afaik.

fwiw, i read once that OP07 was made to replace/upgrade the 741, and tayda has them cheap.  I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Looking for a discontinued madbean board?  Check out my THREAD

FABBED PCB's FOR SALE:
Now carrying Matched JFETS

billstein

Definitely go with the lm741 op amp. Whatever you do, don't use the lm741 opamp!

jimilee

Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
haha he probably meant ua741 or njm741, both of which should work afaik.

fwiw, i read once that OP07 was made to replace/upgrade the 741, and tayda has them cheap.  I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Small bear gots the 2mb pots. Someone should head up a group buy...
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

Haberdasher

Quote from: jimilee on September 13, 2013, 08:21:58 PM
Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
haha he probably meant ua741 or njm741, both of which should work afaik.

fwiw, i read once that OP07 was made to replace/upgrade the 741, and tayda has them cheap.  I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Small bear gots the 2mb pots. Someone should head up a group buy...
Yeah, even a small group buy cooperative would be cool in this case, because that's about the only thing I'd need from smallbear atm.  that pot would cost me about $7.25 if I just order one.  that's over half of what I paid for the pcb, lol.
Looking for a discontinued madbean board?  Check out my THREAD

FABBED PCB's FOR SALE:
Now carrying Matched JFETS

jimilee


Quote from: Haberdasher on September 13, 2013, 09:45:12 PM
Quote from: jimilee on September 13, 2013, 08:21:58 PM
Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
haha he probably meant ua741 or njm741, both of which should work afaik.

fwiw, i read once that OP07 was made to replace/upgrade the 741, and tayda has them cheap.  I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Small bear gots the 2mb pots. Someone should head up a group buy...
Yeah, even a small group buy cooperative would be cool in this case, because that's about the only thing I'd need from smallbear atm.  that pot would cost me about $7.25 if I just order one.  that's over half of what I paid for the pcb, lol.
eeeeexactly
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

Haberdasher

Quote from: jimilee on September 13, 2013, 10:17:41 PM

Quote from: Haberdasher on September 13, 2013, 09:45:12 PM
Quote from: jimilee on September 13, 2013, 08:21:58 PM
Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
haha he probably meant ua741 or njm741, both of which should work afaik.

fwiw, i read once that OP07 was made to replace/upgrade the 741, and tayda has them cheap.  I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Small bear gots the 2mb pots. Someone should head up a group buy...
Yeah, even a small group buy cooperative would be cool in this case, because that's about the only thing I'd need from smallbear atm.  that pot would cost me about $7.25 if I just order one.  that's over half of what I paid for the pcb, lol.
eeeeexactly
Looking for a discontinued madbean board?  Check out my THREAD

FABBED PCB's FOR SALE:
Now carrying Matched JFETS

Guitarmageddon

Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Grab a dual gang 1M from tayda and run both in series. ;)
Spud knows tone!

Captain Cod at
www.codtone.com

jimilee


Quote from: Guitarmageddon on September 14, 2013, 03:22:07 AM
Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Grab a dual gang 1M from tayda and run both in series. ;)
would that be pin 1 to pin 1 , pin2 to pin 2 and pin 3 to pin 3 on each gang?
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

jimilee


Quote from: Haberdasher on September 13, 2013, 11:06:27 PM
Quote from: jimilee on September 13, 2013, 10:17:41 PM

Quote from: Haberdasher on September 13, 2013, 09:45:12 PM
Quote from: jimilee on September 13, 2013, 08:21:58 PM
Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
haha he probably meant ua741 or njm741, both of which should work afaik.

fwiw, i read once that OP07 was made to replace/upgrade the 741, and tayda has them cheap.  I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Small bear gots the 2mb pots. Someone should head up a group buy...
Yeah, even a small group buy cooperative would be cool in this case, because that's about the only thing I'd need from smallbear atm.  that pot would cost me about $7.25 if I just order one.  that's over half of what I paid for the pcb, lol.
eeeeexactly

What do you figure it would cost a guy to ship a 2mb in a small envelope?
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

Guitarmageddon

Quote from: jimilee on September 14, 2013, 04:06:48 AM

Quote from: Guitarmageddon on September 14, 2013, 03:22:07 AM
Quote from: Haberdasher on September 13, 2013, 05:56:23 PM
I'm going to try them in my sharkfin pcb if i ever locate a 2mb pot.
Grab a dual gang 1M from tayda and run both in series. ;)
would that be pin 1 to pin 1 , pin2 to pin 2 and pin 3 to pin 3 on each gang?
No. Wire to lug 1A, jumper lug, 2A to lug 1B, wire to lug 2B. 3rd lugs are unused. It puts the two halves in series. Fully ccw 0ohms, fully cw 2M.
Spud knows tone!

Captain Cod at
www.codtone.com