The rat2 is the classic distortion pedal in the pro co rat family. The pro co rat is a distortion pedal by pro co sound designed by scott burnham and steve kiraly in kalamazoo, michigan 1978. The rat i had previously was built well, and sounded great. Do you have a powerful amp with too much headroom for the gig. The rat has been the pedal of choice of a number of guitarists including at some stage jeff beck.
Interested in the rat 2 classic distortion pedal by proco. Jul 16, 2012 the rat 2 nails that sweet spot where a tube amp goes from sparkly clean to warm overdrive. Nov 01, 2005 do you have a powerful amp with too much headroom for the gig. I had mine modified but ive decided i like it better as it was so i want to bring it back and maybe try to do my own mods to it but i cant find any schematics that are clearly labeled for the rat ii. Proco rat 2 synth demo gearslutz pro audio community. Mosfet transistor booster not the amz mosfet booster. None of the schematics i could find on the net matched my unit ags is close and the one on tonepad is close, so i decided to trace the whole thing out and share it. This turbo rat indicates 1n34a germanium diodes which diagrees with the belief that red leds are used for clipping. Unknown rat schematic the 1nf cap never looked right to me.
Fixing a xbox one power supply orange light goes out, wont power on converting digital multimeter to rechargeable 9v. The proco rat 2 or how to make your strat or tele sound. My intention was to play through the clean channel of my amplifier and achieve whatever distortion i wanted using pedals, so that my tone would remain reasonably consistent at any volume. The rat is a fairly simple single opamp circuit similar in design to the boss ds1 i recently covered. I mod your pedal i dont sell pedals i am selling my service. The original rat was developed in the basement of pro cos kalamazoo, michigan facility in 1978. For those of you who are unfamiliar with it, let me take a moment to introduce you to the truly legendary proco rat.
Since 1978 the quirks of the proco rat have earned it a title of a true classic pedal. First off, sorry for not recording the audio than muting the phone audio track, and placing the recordings under. Nov 01, 2005 20120801 zvex box of rock vs vintage pro co rat by shnobel tone 20120810 ibanez tube screamer ts808 reissue vs vintage 1986 proco rat by shnobel tone 201208 ibanez tube screamer ts808hw vs vintage proco rat by shnobel tone 20120830 timmy vs vintage pro co rat by shnobel tone 20120903 t rex spindocor 2 vs vintage pro co rat. Turn it to the right to roll off brittle highend frequencies.
The deucetone rat features the legendary rat filter control. Pro co rat 2 distortion fuzz overdrive pedal sweetwater. The proco sound rat 2 is a distortion pedal that is designed for use with electric guitar. The proco rat was my first serious fx pedal i bought. Both the rat 2 and turbo rat circuits show 220k input impedances, this disagrees with the procos 1m input impedance spec. The proco rat 2 is another one of the most popular distortion pedals on our list for both guitarists and bassists. According to robert keeley who knows a thing or two. It has level, distortion, and filter knobs just like the original, and a 4th presence knob. I dont know where this circuit fit in to the chronology. The next change in the rat 2 was a 220k or 100k biasr instead of the 1m2,2m for an even softer sound with way more mids. The pedal is an analog one and has the standard make up of two 14 connections for input and output and has an easy pull off battery compartment for powering it with a nine volt battery. The rat 2 is the granddaughter of the rat, released at the end of the 70s and whose 1985 reissue model has just been announced by proco. Due to the pedal success there are several versions designed by pro co like the juggernaut 1979. The cat king has two separate sets of controls for the rat circuit.
The basic rat has changed in appearance over the years, but its tone has remained largely the same. Nov 11, 2010 older vero layout for the proco rat with a few mods. Proco the rat 2 usa overdrive distortion fuzz guitar effects foot pedal. Pro co rat schematic, power supply stage, clipper amplifier, voltage gain. Vero layout for the proco rat with a few more mods based on a schematic from beavisaudio. Proco rat is an indepth look at the circuit in one of the classic effects pedals of all time. The rat 2, which came out in 1988, replaced original 1n914 with 1n4148 diodes. The proco rat the pro co rat is a distortion pedal for electric guitar designed at the end of the 70s that became very popular at the beginning of the 80s 1. Sorting through the many new and vintage rat distortion circuits from proco and other makes.
The proco rat has become a classic pedal that has a legion of fans among guitar players. Proco rat distortion modifications griffin effects. Also, im not quite sure if his mods are for a standard rat or rat 2 because the schematics in the book look different than what my rat looks like. Proco rat replica complete kit kits distortion kits. It seems that they wanted to duplicate the anthraxstyle or metalstyle distortion tone. A classic 80s distortion pedal, this one needs no introduction. Shop at andertons and enjoy our awardwinning service, free nextday uk delivery and 0% finance. My version can be built with either 3 or 4 knobs adding the wellknown sweep mod, with the filter knob having two possible orientations to keep things symmetrical. The rat 2 features the legendary rat filter control. Unveiled in 1988, this pedal has been used by a whole range of players from stephen malkmus to john scofield to kurt cobain. The clean rat is a clean boost, a tone only available in the deucetone rat. The seller said it was an early 90s rat with the lm308 chip, and although im not versed i. The main reason for the use of the 10k was that proco wanted to sound their rats softer, smoother and less harsh compared to the rat 1.
It is provided asis without warranty or guarantee of any kind, so use at your own risk. Nov 26, 2014 the rat is a fairly simple single opamp circuit similar in design to the boss ds1 i recently covered. Diy rat clone distortion guitar effect pedal the dead rat. Use the rat 2 as a boost for solos and get the extra kick you need. In 2008 production moved to china and is now manufactured by neutrik for pro co sound. There are fuzzbox schematics, signal booster projects, audio mixers and much more available free.
Hi all, just looking for some advice on an issue ive encountered on my proco rat 2 pedal. Used as a primary distortion, it excels at arena rock rhythm tones and soaring leads. In the end, the proco rat 2s filter range goes from too bassy to too scooped and fizzy. The rat is designed to have a large amount of gain and a significant treble boost. Includes all the parts and materials you need to build a proco rat replica, including the pcb. A few errors in the schematic was corrected, and the mods have been modified to accommodate a 5way rotary switch. Available in three different lengths rat tail10, 18 and 25 foot, this is essentially a distortion pedal loaded into a guitar cable, using the same clipping diodes using in vintage rat distortion. The next change in the rat 2 was a 220k or 100k biasr instead of the 1m 2,2m for an even softer sound with way more mids. Its circuitry is quite simple, we can divide it in four blocks. It has a unique tone structure that other effect devices are measured against.
The input jack for the 9v power supply is a lot smaller tha. Led clipping diodes, louder with more gain on tap, more open sounding and best low end retention of current production proco rats. Proco has managed to condense down a whole pedal into the jack plug no mean feat but it might be missing a few controls. Dec 12, 2007 yup, but the vintage rat has only 1m for biasing the opamp. Older vero layout for the proco rat with a few mods. Proco guitar effects pedals for sale in stock ebay. This ducetone model provides the broadest palette of rat distortion textures, capable of slightly crunchy through to absolute filth. Proco rat distortion service manual download, schematics. Yup, but the vintage rat has only 1m for biasing the opamp. This pedal began life as a custom order unit back in 1978 but, due to its popularity, proco began massproducing it only a year later. I found that i ended up fighting its aggressive mids too much, and i exchanged it for the keeleymodified blues driver. The tone is too squarewave for me, and not a patch on the classicsounding midheavy grunt of the joyo crunch distortion or even the lighter, natural bark of the electroharmonix east river drive. Because you didnt read the manual the rat first came on my radar after i saw it being used by jesse lacey of brand new. The byoc mouse is a modified version of the original proco rat.
Various rat2 circuit board layouts and wiring configurations have surfaced in the last few years, including the noted rat3 version a and b all. Proco rat, proco turbo rat, and proco rat 2 differences. Has glow in the dark controls for distortion amount, filter cutoff and volume level. The proco rat 2 delivers what i want almost exactly. Its modeled against a schematic of the unit and tuned against clips of the real unit for improved accuracy. The rat 2 nails that sweet spot where a tube amp goes from sparkly clean to warm overdrive.
Its a great time to upgrade your home music studio gear with the largest selection at. The information contained within this site is provided for diy and personal use only. Sep 17, 2016 why did i take the proco rat 2 from my pedalboard. Im looking to do some mods to it and i wanted to have a stock schematic for reference. Advertisement autoplay when autoplay is enabled, a suggested video will automatically play next.
Proco rat 2 classic distortion pedal andertons music co. After deciding to rerecord some tracks i had done about 10 years ago i needed a rat to duplicate the sound i had on the original tracks. Kikapcsolva nem merheto ellenallas a 2 kimenet kozott. Buying guide for the proco rat distortion pedal reverb. Im looking to buy a distortion pedal and im trying to decide between the rat2 and the ds1. Proco rat ii distortion schematic beavis audio research. There are numerous links to rat schematics online, most of them dead. For more information on the proco rat, click the link below or give us a call on 01202 597180. The distortion can be adjusted from a relatively mild overdrive to a snarling crunch to fuzz. Does anyone know where i can find a schematic for a proco rat ii pedal. Imho proco changes the circuit layout in the mid 80ties for better low end response and to make it more usable for that death metal anthrax style low string riffing that was quite poular at that time.
The pro co the rat is a guitar effects pedal produced by pro co sound. Proco rat 2 power supply jack issue ultimate guitar. Purchases ayrton diablotc fixtures for broadcast lighting inventory 1102020 brigham young universityidaho invests. Used separately or cascaded, you have fifteen rat tones at your feet. A proco rat can dish the dirt when plugged into the clean channel of any guitar amplifier, including transistor amps. Numerous variations of the original rat pedal are still being produced today. Its always sounded pretty good, but ive always wanted to try the rat due to its history in rock. Fulltone ocd vs proco rat ive long had an ocd on my pedal board for heavier overdrive. I had to return it though because of their stupid dc jack style power socket i got the polarity wrong with an adapter which basically fried it. Helios pro co rat distortion diy project pcb aion electronics.
Click here for more general information about the kits. Seems like pretty simple stuff, and in principle it is, but there is plenty of black magic and mystery associated with a good sounding fuzz circuit, and it takes a lot of effort to get the things sounding just right. The original circuit and appearance suffered some changes over the different revisions but the tone remained the same. Although it only features three knobs distortion, filter, and volume the pedal is quite versatile, capable of everything from a touch of. The proco sound vintage rat is an analog distortion pedal designed for use with electric guitar. For instance, only 1 transistor and 3 diodes are shown. Thanks to scott swartz for his contribution to this project. Two diodes shunt to ground the opposite way around will cut away the peaks of the signal and thus, create distortion. Basically, by cutting one of the filter resistors out of the circuit you can give the. Service manuals, schematics, eproms for electrical technicians. I just got a proco rat off ebay, and i think ive been had. My intention was to play through the clean channel of my amplifier and achieve whatever distortion i wanted using pedals, so that,y tone would remain reasonably consistent at any volume.
Some modifications on the pro co rat distortion pedal. Proco rat 2 more infobuy if youre interested in buying and you have seen it cheaper elsewhere, please call us or use our. It has both a 14 inch input and a 14 inch output and can be powered by either a battery or a power supply. Use the rat 2 as a boost for solos and get the extra kick. This is part of what gives it a characteristic sound, but. Have a new rat 2 and wish you could afford the vintage rat with the lm308n chip. Justin lang welcomes the new year with grandma3 running the nye pops gala at mgm national harbor 2020 act lighting named north american distribution partner for zactrack automated follow systems 2020 india inc. I had a proco rat about 15 years ago and it was an awesome distortion pedal. Im leaning towards the rat, but some people call it a fuzz pedal and i already have a fuzz face, so i wouldnt want to be redundant.
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