New year means new projects right? I finished a 5F2A, AB763, and 5E3 last year so I'm brimming with hubris to press forward into amplifier diy glory. I recently picked up a few organ chassi (that's the plural for chassis right?) on a whim and want to convert this first one into a 6V6 Plexi style amp. The organ was originally an AO-29 with two 6V6 output tubes. My goal is to take the chassis and transformers as a baseline, and build a brand new amp from there. I'd also love to use some of the old tubes that came with the amp as well. The Mighty AO-29 Here is the AO-29 ready to be decimated $44 shipped to my door. It had a tube compliment that I removed. The 6V6's in particular may be useful. The rest perhaps not so much. According to the schematic: http://www.stefanv.com/electronics/hammond_ao29_overhaul/schematic.gif The tube compliment is as follows: v1 - 6AU6 v2 - 6AU6 v3 - 12AU7 v4 - 12AX7 V5 - 6V6 V6 - 6V6 V7 - 6C4 V8 - 6C4 V9 - 12AU7 V10 - 68A6 V11 - 5U4 So here's to hoping the 12AX7, 6V6's, and 5U4 may be functional and useful in a 6V6 plexi circuit. Resources Here are some links (partially for my own reference) where I am taking inspiration and direction for the final results. Hoffman's 6V6 Plexi - http://el34world.com/Hoffman/files/Hoffman_Plexi_6V6-V2.pdf A similar conversion thread - http://el34world.com/Forum/index.php?topic=20482.0 AX84 'October' Project (Club Version) - http://www.ax84.com/october.html Layout drawing - http://el34world.com/Forum/index.php?action=dlattach;topic=20482.0;attach=59143;image Step 1 - Tear Down This chassis was pretty dirty. Lots of dust and grime everywhere. Most of the wires have a gunk on them. But I tried to disassemble it in a somewhat orderly fashion. Pretty funky amp with all these little transformers. I'm pretty impressed with Hammond for some good build quality. I decided not to try and use the individual components beyond transformers and tubes. From what research I performed I gathered that the old carbon comp resistors are a 'maybe' but with potential noise concerns. The larger capacitors definitely not. Here is the main filter cap, just for kicks. i don't see any leaking or bulging, but I'm not going to use it anyways. I paid particularly close attention to the power transformer and output transformer and which wires went where. I used masking tape and a sharpie to help me remember later down the line. Everything else is coming out though. Was pretty time consuming going through it all. Especially the little doohickey's that hold the tube sockets to the chassis. Are these rivets? Sorry, I have not really seen this kind of thing before. I have been using my drill to drive a hole through the heart of the rivet and then use a screwdriver to finnagle it out. Is there a better process to get these out more effectively? Going to keep disassembling. At some point I will do a thorough cleaning of the chassis and transformers. Then we'll talk layout and get cracking! Any input would be much appreciated. I'm pretty much just an enthusiastic noob who has yet to shock himself.