madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: warriorpoet on March 03, 2013, 12:51:19 AM

Title: Opamp equivalency for Kingslayer
Post by: warriorpoet on March 03, 2013, 12:51:19 AM
I've built a few different Klon-ish PCB projects, and have found I tend to prefer the BB OPA2134PA for its more transparent full-range response over the other, more commonly recommended, alternatives.  Is there a quad opamp that is similar, or is the recommended TLC274 the be-and-end-all?
Title: Re: Opamp equivalency for Kingslayer
Post by: RobA on March 03, 2013, 12:59:43 AM
TI used to make the OPA134 series in a four op amp PDIP package. But, I think the OPA4134 is only available as an SOIC now. You might be able to find the PDIP version still somewhere.

There is this one,
http://www.ti.com/lit/ds/symlink/lme49740.pdf

But, I have no idea how it would sound in an overdrive setting.
Title: Re: Opamp equivalency for Kingslayer
Post by: warriorpoet on March 03, 2013, 01:59:34 AM
Quote from: RobA on March 03, 2013, 12:59:43 AM
TI used to make the OPA134 series in a four op amp PDIP package. But, I think the OPA4134 is only available as an SOIC now. You might be able to find the PDIP version still somewhere.

There is this one,
http://www.ti.com/lit/ds/symlink/lme49740.pdf

But, I have no idea how it would sound in an overdrive setting.
That's good info, thanks.  I found some BB OPA4134PAs available on eBay.  Don't know why I didn't check there first :p