Heck, swapping out the diodes will have a greater impact as Matt stated.Ītwood the man from mars pdf free. The other components around it influence the sound a lot more. In a circuit like the Rat, the op amp makes very little difference. Changing the clipping diodes makes quite a difference as well.Ī lot of people like to put red LED's in their Rats for clipping instead of the stock diodes, but there are hundreds of possibilities there. If you want to change the tone, swapping capacitors is the most effective thing. I've never heard an op amp swap that changed the fundamental tone of a pedal. For example, with one op amp you might be able to clean up the sound by picking lightly, but a different op amp might distort regardless of pick attack. They do more for changing the dynamic response of the pedal. Op amp changes are subtle, and usually don't change the tone of the pedal per se. I've got a couple of actual fuzzes on the board, but that DS-1 is seeing a lot more use for the noisy bits than they are. BTW Erik, that DS-1 I bought off of you a couple of months ago has become the pedal I use to goose the Rat into fuzzier territory. That's running straight out of the pedals into the preamps on my recording interface (playback through Event TR-8s). By nudging the distortion knob just a bit (maybe 1 hour's worth) and the volume knob a bit more (between 2 and three hours) it sounds so much like my other Rat that when I switch between them without looking, I can't tell a difference, much less begin to guess which one I'm hearing. I should add, perhaps, that both of these pedals are USA-made, so I don't know what differences might be heard in the newest, Chinese-made Rats.Īt identical settings, I hear a little less agression out of the LM308 pedal: Thinner sound, lower volume, less distortion.
I cannot find a sound on one that I can't match with the other. Something in the neighborhood of 10 years separates their manufacture, and people seem to LOOOOVE the old ones and deride the newer ones, but I'm telling you: to my ears, they are absolutely interchangeable. While they sound different with identical settings, the overall flavor is very much the same and they can be very easily made to sound identical with a little knob tweaking on one or the other. I've spent a little over a week now playing with my new (older-made) LM308-equipped Rat2 and comparing it to my old (newer-made) non-LM308 Rat2. Tech experts from Seymour Duncan are regularly on this forum, and are clearly labeled as employees of Seymour Duncan. To start viewing messages, select the forum that you want to visit from the selection below. You may have to before you can post: click the register link above to proceed. If this is your first visit, be sure to check out the by clicking the link above. All are welcome, from seasoned pros to absolute beginners. Talk with your fellow tone freaks on the web's liveliest (and friendliest!) tone forum.The white RAT logo was silk-screened on black, painted metal. To give the RAT a unique look, a custom 20 gauge wrap-around enclosure was designed. The Rat This was the first RAT pedal manufactured in large numbers. I've also an 80's Rat nuumber there's the LM308 text on the chip. Originally posted by flow There's an LM308 op amp chip in original RAT2.
Proco rat serial number - with other Meh, thanks but I aint that concerned about it.