I never get tired of building Rat clones and the Slow Loris is one of the best sounding yet. I tried both an LM308N and a OP07. The OP07 sounded better to me so I left it in, go figure
(http://img.photobucket.com/albums/v685/LookingforLarri/Rat%20Pedal/Rat001.jpg)(http://img.photobucket.com/albums/v685/LookingforLarri/Rat%20Pedal/Rat007.jpg)(http://img.photobucket.com/albums/v685/LookingforLarri/Rat%20Pedal/Rat009.jpg)
Beautiful build! What do you usE software wise?
Quote from: sprayfe on April 10, 2011, 03:24:47 AM
Beautiful build! What do you usE software wise?
I use Photoshop Elements 9. I've only been at it a few months and it is still a struggle at times, but I love the results.
Nice! Graphics are very well done.
I tried out a TL061 in my Slow Loris the other day and decided to keep it in over the LM308n..
Wow! It looks awesome. I love the red knobs with the red switch. Where did you get the switch? The contrast is nice against the white. The graphics are cool. Where did you ge the 3n3 yellow cap at C8 an the 22n green box cap at C1? I see lots of colorful box caps at freestompboxes, but I only know where to get these grey box caps. Pot condoms and very cleanly wired.
Thank for the kind words. Not sure where the green cap came from, I think it came in a grab bag from Caps n' Such. The yellow 3n3, knobs, switch and switch cap came from https://www.mammothelectronics.com/ (https://www.mammothelectronics.com/)
Can a burr brown OPA2134A be used in this circuit ? Anyone ever try one ?
No, the 2134 is a dual op amp. The rat uses a single op amp. I think there is a OPA21 series that is a single, but I forget the number. Smallbear has it.
Nice build. What do the characters mean?
Jacob
Thanks for clearing that up. I'm still trying to learn the different components
The characters are chinese for Rat. ( According to Google anyway )
Graphics are awesome. Especially the stick figure guy. Is that you? :D
Good work dude ! :)
That stick guy is me.....
Maybe 20 years ago... ;D
Really awesome! It looks super smooth!
I really like to hear that you found a suitable substitute for the LM308N. I'm gonna go ahead and give that chip a try in my rat and also the TL061 petesz mentioned he used.
What other rat clones have you built?
I've built the General Guitar Gadget and GuitarPCB versions. Of the three I like this one the best. I think the tone is a little less dark and the clipping options provide more versatility. I am still new at this so I do not have the experience of many here, but so far this is my favorite.
I have a rat board from guitarpcb fully built just waiting for the LM308 chip to arrive. Can't wait to finish it and have my first rat build! But now I wanna hear this one to compare :)
I like rats ;D
So did you leave off the LED clipping option?
Quote from: tenwatt on April 11, 2011, 01:53:09 PM
So did you leave off the LED clipping option?
Not sure what you mean ? I hooked up the switch the enables LED, Diode, or none clipping. I connected the wires from the bottom of the board.
Is there another mod ?
Quote from: Comfort Player on April 11, 2011, 04:19:44 PM
Quote from: tenwatt on April 11, 2011, 01:53:09 PM
So did you leave off the LED clipping option?
Not sure what you mean ? I hooked up the switch the enables LED, Diode, or none clipping. I connected the wires from the bottom of the board.
Is there another mod ?
I only seen the one LED on the enclosure so I was curious.
LED clipping is installed on the PCB. It's rarely used as an indicator light, because it rarely lights up very brightly at all. Usually it's hidden, as it is in this case.
Jacob
There are 2 3mm LEDs on the pcb (D1 and D2) to provide the LED clipping. Would these be the ones you are referring to ?
Quote from: Comfort Player on April 11, 2011, 05:12:23 PM
There are 2 3mm LEDs on the pcb (D1 and D2) to provide the LED clipping. Would these be the ones you are referring to ?
Yeah...Jacob nailed my question.
So I guess my answer would be no I did not "leave off the LED clipping option" , since I soldered the two LEDs on the PCB, which light up pretty nicely when selected with the clip switch selector.
Quote from: Comfort Player on April 10, 2011, 04:48:39 PM
I've built the General Guitar Gadget and GuitarPCB versions. Of the three I like this one the best. I think the tone is a little less dark and the clipping options provide more versatility. I am still new at this so I do not have the experience of many here, but so far this is my favorite.
Good job on the loris !
Do you plan on uploading any sound clips?
I have no way to record clips, sorry :'(
Just finished my guitarpcb/gauss markov rat board last night right before I had to go to bed. It sounds really great! I found it cool that w/ the distortion knob at 0 I got such a clean signal. Then it goes from dirty boost->distortion-->almost gobbing fuzz! The Madbean board must sound really great cause I'm totally satisfied w/ mine. And I haven't experimented w/ the IC yet. ;D
Quote from: bigmufffuzzwizz on April 12, 2011, 05:46:01 PM
Just finished my guitarpcb/gauss markov rat board last night right before I had to go to bed. It sounds really great! I found it cool that w/ the distortion knob at 0 I got such a clean signal. Then it goes from dirty boost->distortion-->almost gobbing fuzz! The Madbean board must sound really great cause I'm totally satisfied w/ mine. And I haven't experimented w/ the IC yet. ;D
Congrats on the build. I never met a Rat I didn't like...
Just got home and finally got to fool around with it for a little. It was too trebly for me with my strat and I'm not a huge fan of completely cutting all the highs out. With a les paul its a whole different story. Super thick fuzz to grainy distortion and I'm still trippin out on how clean it gets with the gain knob all the way down. It would be even cooler with a bunch of diode clipping mods 8)