Rat Based (LM308N) Options?

Jovi Bon Kenobi

Jovi Bon Kenobi

Well-known member
I have a few metal can and dip LM308N's as well as some alternates (CA3130EZ/TL071) and wanted to build a Rat. What Rat-based PedalPCB options are out there that call for em? I know of the Muroidea but are there any others on the site that specify that chip? I'll be ordering the Muroidea but just wanted to see if any of you have a preference leaning towards something else in the same vein. Thanks!
 
The Parentheses is pretty awesome, I like the mini version as I don’t use the octave section enough to justify the extra switch and larger enclosure. I wired an expression jack to it once, works well!

edit: the Dingo distortion as well, haven’t built it but it’s a VFE so it’s probably great.
 
Nostradoomus said:
The Parentheses is pretty awesome, I like the mini version as I don’t use the octave section enough to justify the extra switch and larger enclosure. I wired an expression jack to it once, works well!

edit: the Dingo distortion as well, haven’t built it but it’s a VFE so it’s probably great.
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Nice! I didn't know about the Dingo. I actually have a couple of Parentheses boards from last year. One is the Mini and the other is, I'm pretty sure, the first version of the big one. I also have a Pandora's Box board here. haha. I guess I put thought into this before but must've forgotten.

Thanks!
 
HamishR said:
Pandora's box is a wonderful pedal, especially with Chuck's bass pot mod. It's be on here somewhere. For me the bass pot mod is a must. Ad I used CA3130s for mine.
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Ok, I guess I'll gussy up the Pandora's Box board! Man, searching through the forum produces a lot of useful info. IDK why but the Parentheses intimidates me, haha. Time to put on my thinking cap and try to make sense of all these modification options. Thanks so much!
 
The informant overdrive is also a nice sounding rat-based design. Where the bixonic is like a MORE RAT sort of scenario, the informant is kind of like a rat with the edges smoothed off. It doesn't have quite the same mid/high boost as a traditional rat either, so it sounds a bit fuller. I still like the plain ol' original rat and turbo rat the best though. Also, FWIW, I've swapped out a bunch of different ICs (308, mosfet, OP07, etc) in the muroidea and a/b'd them with my 80s LM308N rat and they all sound almost exactly the same to my ears. Even if there is some small difference, I would never be able to pick one from the other in a blind A/B nor would I be able to hear any difference in a band setting.

Also, sick Hausu pic.
 
mdc said:
The informant overdrive is also a nice sounding rat-based design. Where the bixonic is like a MORE RAT sort of scenario, the informant is kind of like a rat with the edges smoothed off. It doesn't have quite the same mid/high boost as a traditional rat either, so it sounds a bit fuller. I still like the plain ol' original rat and turbo rat the best though. Also, FWIW, I've swapped out a bunch of different ICs (308, mosfet, OP07, etc) in the muroidea and a/b'd them with my 80s LM308N rat and they all sound almost exactly the same to my ears. Even if there is some small difference, I would never be able to pick one from the other in a blind A/B nor would I be able to hear any difference in a band setting.

Also, sick Hausu pic
Click to expand...
Those are very accurate descriptions. I built the informant last year and found it to be too creamy for me. ?

Appreciate it!
 
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