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Started by Zappacat, August 19, 2009, 03:02:00 PM
Quote from: Zappacat on August 19, 2009, 03:02:00 PMLM3886 stereo guitar amp + Phatt passive tone stack + stereo effects loop. I'm wondering if this is a practical goal. I need a stereo guitar amp with basic tone controls. The stereo effects loop is for plugging in my POD XT when needed. Could I integrate Phatt's passive tone stack in an amp based off of this Non-Inverting LM3886 Stereo PCB Set http://www.chipamp.com/orders.shtml and add a stereo effects loop in the signal path somewhere?Also, does anyone have transformer recommendations for this build?Thanks in advance.
Quote from: Zappacat on October 22, 2009, 05:17:00 PMI've been doing a LOT of research on this topic. Mostly because I'm a complete newbie and I need to learn. Recently I got around to purchasing the chipamp.com boards and I've started to assemble the.My first question is:There's a lot of talk on the internet about using the LM3886 as a guitar amp but none of the posts/discussions ever really get to the point of someone actually posting finished projects with information on how they took the guitar signal and fed it to the LM3886 inputs. Does anyone have a SIMPLE schematic(even without tone stack) explaining how to do a simple preamp stage from the guitar output to the LM3886 input. I'd like to either use Phatt's passive tone stack or the eighteen watt DIY pedal at GGG for a preamp. I'm missing the part about attenuating the signal exiting the preamp(Phatt or eighteen) and getting it to the amp input.Second question:What would I need to implement a switchable tonestack/preamp. Ultimately I would like to have the Phat passive and Marshall eighteen on the same amp with a switch to toggle between them.Any help greatly appreciated !