Blue Guitar amp mods
Bogner
Fender
Groove Tubes
Marshall
Mesa Boogie
Misc Amp Schematics
Misc Amp Mods
Peavey
Rivera
Soldano
Sovtek
Sundown
Trainwreck
Vox
IMPORTANT NOTICE!The schematics on this page are provided strictly for educational purposes. If anyone intends to use these designs for profit, they are required by law to obtain permission from the legal owner(s) of the design and comply with any and all laws pertaining to copyrights, patents, and proprietary information. If anyone holding legal claims to any of these files wishes that they be removed or edited, please contact me via the email link at the bottom of this page. Once your identity and legal claims have been established, your request will be honored in a timely manner. Thanks in advance for your cooperation in following these guidelines. Note on PDF files: Whenever applicable this site will be using the Adobe Acrobat PDF files instead of GIF files because of the higher resolution and lower filesize. There is a link to the Adobe site on the index frame to the left where you can download the appropriate Acrobat reader files for your computer. For computers that do not support Adobe Acrobat you might look into the shareware program GhostScript. If you are still unable to load and print PDF files please send me an e-mail. Thank you.
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File Description Guitar Amps and Mods Blue Guitar amp mods c30scmod.gif [143k] Peavy Classic 30 schematic (with 1998 mods drawn in) c30schmd.pdf [171k] Peavy Classic 30 schematic (with 1999 mods drawn in) c50twdbm_sch.pdf [299k] Annotated schematic for Tweed Bassman mod for Peavy Classic 50 blxprsch.pdf [194k] Trainwreck "Blues Express" mod for Electar Tube 30 (schematics) hrt_bm_s.pdf [78k] Hot Rod Tweed mod for SF Bassman (schematic) hrt_bm_l.pdf [94k] Hot Rod Tweed mod for SF Bassman (layout) hrt_bml2.pdf [38k] Hot Rod Tweed mod for SF Bassman: Details for wiring up option switches hrtp_sch.pdf [138k] Hot Rod Tweed PLUS mod (with Electrolex Rocket 50 option) hybrid_a.pdf [44k] Hybrid amp version A: Schematic [1977 architecture w/ 1997 values] layoutrb.jpg [282k] Hybrid amp version A: Layout [1977 architecture w/ 1997 values] relay_bd.zip [282k] Hybrid amp version A: Relay board pix pro_man7.pdf [69k] Pro Maniac amp mod for Fender BF/SF reverb amps (design revised 9/19/99) sopm_1.pdf [48k] Son of... Pro Maniac! (design revised 10/31/99) ** Click here for FTP listings! ** More Blue Guitar Schematics in the Archives! Bogner triple_giant.jpg [233k] Bogner Triple Giant (preamp section) triple_giant.gif [50k] Bogner Triple Giant (preamp section) triple_giant.txt Notes on Bogner Triple Giant circuit xt_cod.gif Bogner Ectasy ** Click here for FTP listings! ** More Bogner Schematics in the Archives! Fender http://www.ampwares.com/ffg/ Check the Fender Field Guide for Tweed and BF/SF schematics http://www.mrgearhead.com/faq/schematics/fender/ Check Mr. Gearhead for modern schematics http://www1.korksoft.com/~schem/fenderheaven.htm Check Fender Heaven, too! blues_deluxe.gif [212k] Fender Blues Deluxe (factory schem) blues_deville.gif [225k] Fender Blues DeVille (factory schem) blues_dlx-dvl_lay.gif [159k] Fender Blues Deluxe/DeVille (factory layout) blues_jr.gif [229k] Fender Blues Jr schematic blues_jr.txt [3k] Quick'n'Dirty mods for Blues Jr from Dave Stork bldvlmod.txt [6k] Mods for Fender Blues DeVille from AMPAGE BBS concert.jpg [5k] '83 Concert amp (with corrections) drri_mod.txt [6k] Mods for Fender Deluxe Reverb RI (from AMPAGE BBS) 5a3_sch.pdf [18k] Fender Deluxe 5A3 schematic 5b3_sch.jpg [74k] Fender Deluxe 5B3 schematic 5b3_lay.jpg [146k] Fender Deluxe 5B3 layout dualprof.zip [281k] Dual Professional amp designed by Zinky concert_ftsw.gif [5k] Footswitch for '83 Concert and Twin Reverb II hotrod_deluxe_pre.gif [14k] Fender Hot Rod Deluxe (preamp section/redrawn) hotrod_deluxe.pdf [369k] Fender Hot Rod Deluxe (factory schem) hotrod_deville.pdf [385k] Fender Hot Rod DeVille (factory schem) hrd_mod.htm [32k] AMPAGE BBS thread on mods for Hot Rod Deluxe prtweak.pdf Notes on PI power supply mod for Princeton Reverb pro_jr.zip [184k] Fender Pro Jr schematic pro_jr.htm [25k] AMPAGE BBS thread on mods for Pro Jr prosonic.zip [221k] Fender Prosonic schematic prosontn.zip [638k] Factory tech notes for Fender Prosonic (ch sw noise, etc.) protube.zip [820k] Fender Pro-Tubes schematic/layout (Concert/Pro/Twin) the_twin.gif [224k] "The Twin" amp from Fender tonemstr.jpg [609k] Fender Tone Master schematic vk_schem.gif [121k] Fender Vibro King schematic vk_mods.txt [2k] Mods for the Vibro King from Tim C. ** Click here for FTP listings! ** More Fender Schematics in the Archives! Groove Tubes gt_trio.jpg [274k] Groove Tubes Trio preamp (original JPG drawing) gt_trio.gif [130k] Groove Tubes Trio preamp (redrawn!) gtsoul-o.zip [380k] Groove Tubes Soul-O 75 Marshall http://www1.korksoft.com/~schem/marshallheaven.htm Check Marshall Heaven for a very comprehensive collection of Marshall schematics http://marstran.8k.com/Schematics%20Page.htm Great redrawn schematics for some of the classic Marshall amps http://www.marshallschematics.com Marshall Schematics from the Schematic Guy 2550orig.gif [82k] Marshall Silver Jubilee 2550 amp (lousy factory drawing) 2550.gif [82k] Marshall Silver Jubilee 2550 amp (redrawn!) 6100.zip [808k] Marshall 6100 jcm900mod.gif [22k] Mods for JCM900 jcm2000.zip [1450k] Marshall JCM2000 amp jmp1.zip [647k] Marshall JMP-1 jtm30.zip [585k] Marshall JTM30 amp jtm60_1.zip [731k] Marshall JTM60/600 amp (Issue 1) jtm60_2.zip [709k] Marshall JTM60/600 amp (Issue 2/3) plexi_rev.gif [94k] Hoffman reverb mod for Marshall or 5F6A (as drawn by Chris W.) ** Click here for FTP listings! ** More Marshall Schematics in the Archives! Mesa Boogie http://www1.korksoft.com/~schem/boogieheaven.htm Check Schematic Heaven for schematics of Mesa Boogie products not currently in production (dead link 06/18/02) http://www.mif.pg.gda.pl/homepages/tom/schematics.htm Lots of cool schematics here, too! Misc Amp Schematics 20wamp.pdf [18k] Custom 20 watt amp from Dave Harris ac30_2.pdf [34k] Custom variation on AC-30 from Dave Harris http://www.adadepot.com/ ADA Depot [website] MP-1 MP-2 MB-1 etc. crate_vc3112pre.gif [105k] Schematic for Crate VC3112 amp (preamp) crate_vc3112pow.gif [132k] Schematic for Crate VC3112 amp (power supply/output) electroplex_rocket50.zip [323k] Schematics for Electroplex Rocket 50 (zipped) engl_rb100.pdf [23k] Schematic for ENGL RB100 (preamp) kittyhawk_quattro.gif [68k] Kittyhawk Quattro Preamp laney_gc30v.gif [168k] Laney GC30V schematic magnatone_260a.gif [97k] Magnatone M-260A amp schematic pignose_g40v.gif [101k] Pignose G40V tube amp schematic roland_jazz-chorus1.gif[240k] Schematic for Roland Jazz Chorus amp (part 1) roland_jazz-chorus2.gif[224k] Schematic for Roland Jazz Chorus amp (part 2) selmer_treble-n-bass50.gif [40k] Selmer Treble'N'Bass Fifty amp sjb_ant.zip [189k] SJB Ant 30W Reverb amp trace-elliot_velocett.gif [127k] Trace Elliott Velocette amp trace-elliot_velocett.jpg [99k] Trace Elliott Velocette amp (redrawn) yamaha_t100.zip [158k] Yamaha T100 ** Click here for FTP listings! ** More Miscellaneous Amp Schematics in the Archives! ** Click here for FTP listings! ** Homebrew Amp Schematics in the Archives! Misc Amp Mods 3988009a.zip [784k] Ideas for adding relays to an amp design ac_to_dc.gif [38k] DC tap from 6.3vac filament supply bfhotrod.pdf [187k] Hotrodding the Normal Channel (for SR AB763 et al) bluesmaker.zip [250k] John McIntyre's Bluesmaker mod for BF/SF Bassman head (full article) bluesmaker_sch.gif [64k] John McIntyre's Bluesmaker mod (schematic only) bluesmaker_layout.gif [135k] Hand drawn layout drawing signed by John McIntyre himself both_rev.gif [186k] How to add reverb to the Normal channel fishpapr.zip [303k] Spec sheets on "fishpaper" gasket material used to make eyelet boards hi_v_ss.pdf [18k] Using IRF820 MOSFETs instead of 12A_7 tubes (Drawn up by Mike Donovan) input.gif [2k] Custom input jack circuit drawn up by Bruce Collins of Mission Amps triodesw.gif [10k] Pentode/Triode switch from Lord Valve pi-m-vol.pdf [15k] Post-PI Master Volume circuit from Bruce Collins of Mission Amps pow.zip [263k] John McIntyre's Prince'O'Wails mod for BF/SFPR fx_loop.gif [66k] Tube buffered FX Loop for Marshall amps from Kurt's Amps fxloop2a.gif [5k] Kurt's FX Loop redesigned by Dietmar Stein fxloop2b.gif [24k] Kurt's FX Loop redesigned by Dietmar Stein ss_loop.gif [6k] SS FX loop for Marshall Valvestate amps tut_loop.gif [25k] Tube buffered FX loop from King TUT [REMOVED] volreduc.gif [31k] Custom design from Bruce Collins for box to reduce volume from amp ** Click here for FTP listings! ** More Miscellaneous Amp Mods in the Archives! Peavey evh_5150.gif [202k] Peavey 5150 factory schematic (tabloid) 5150evh.pdf [335k] Peavey 5150 factory schematics evh_5150.zip [383k] Peavey 5150 schematics redrawn c20laygr.jpg [401k] Peavy Classic 20 layout drawing c20schem.gif [43k] Peavy Classic 20 schematic c30layg1.jpg [707k] Peavy Classic 30 layout drawing c30schem.gif [115k] Peavy Classic 30 schematic c50schem.pdf [626k] Peavy Classic 50 schematic (preamp and main boards) valverb.gif [296k] Peavy Valverb (tube reverb and tremelo) ** Click here for FTP listings! ** More Peavey Schematics in the Archives! Rivera r_series.zip [449k] Rivera R Series amps rivera.zip [437k] Rivera Knucklehead and S-120/M60/M100 amps ** Click here for FTP listings! ** More Rivera Schematics in the Archives! Soldano atom16.gif [65k] Soldano Atomic 16 amp (2 EL84's) slo100.zip [75k] Soldano SLO 100 slo_notz.txt [5k] Notes on mods for the Soldano SLO 100 yam_t100.zip [158k] Yamaha T100 (designed by Mike Soldano) ** Click here for FTP listings! ** More Soldano Schematics in the Archives! Sovtek mig-50.pdf [40k] Sovtek MIG-50 amp as drawn by Bruce Collins of Mission Amps mig-50h.gif [56k] Sovtek MIG-50H Tube Midget amp mig-100h.gif [98k] Sovtek MIG-100H amp ** Click here for FTP listings! ** More Sovtek Schematics in the Archives! Sundown sd1000h.gif [131k] Sundown SD1012C/SD1000H sndn_a50.gif [153k] Sundown A50 (A36) sundown.gif [60k] Sundown Rebel 50/100 Lead (SDR100H) ** Click here for FTP listings! ** More Sundown Schematics in the Archives! Trainwreck wreknotz.txt [19k] Various notes on the Trainwrecked Expresso design wreckxpr.pdf [189k] Several interpretations of the Trainwreck Express ** Click here for FTP listings! ** More Trainwreck Schematics in the Archives! Vox http://www1.korksoft.com/~schem/voxheaven.htm Check Vox Heaven for more schematics http://www.voxamps.co.uk/support/vdlmenu.htm Check the Vox UK site for more schematics ac_4.gif [14k] AC4 schem from AMPAGE library ac_4.jpg [106k] AC4 schem from Vox-UK site ac15fact.jpg [140k] AC15 factory schem (JPG) ac301960.jpg [203k] AC30 schem from Vox-UK site (1960) ac30bass.jpg [197k] AC30 Bass amp schem from Vox-UK site ac30fact.jpg [158k] AC30 factory schem ac30volt.jpg [167k] AC30 factory schem with voltages added ac30elek.pdf [33k] AC30 schem from Elektor Electronics [4/89 p.29] ac30_pre.gif [9k] AC30 preamp from AMPAGE library ac30_pwr.gif [14k] AC30 power amp from AMPAGE library ac30hoff.gif [18k] AC30 schem/layout drawing from Hoffman site ac30tbmd.jpg [111k] AC30 Top Boost mod from Vox-UK site ac30ripr.jpg [96k] AC30 Reissue (preamp) from Vox-UK site ac30ripw.jpg [88k] AC30 Reissue (power amp) from Vox-UK site ac30vrev.jpg [158k] AC30 Vintage Reverb amp from Vox-UK site ac30ptot.txt [1k] Notes from AMPAGE BBS on AC30 trannies ac34colr.jpg [290k] AC30/4 factory schem (scanned in color) ac34ef86.pdf [33k] AC30/4 schem redrawn (EF86 ch. & power amp) ac50_joe.gif [17k] AC50 amp from Joe Piazza's site ac50_pwr.gif [14k] AC50 power amp from AMPAGE library ac100.jpg [156k] AC100 amp from Vox-UK site ac100pwr.gif [14k] AC100 power amp from AMPAGE library ac120.jpg [167k] AC120 amp from Vox-UK site berk_pre.gif [9k] Berkeley preamp from AMPAGE library berk_pwr.gif [14k] Berkeley power amp from AMPAGE library camb_rev.gif [31k] Cambridge Reverb amp factory schematic pacemakr.gif [20k] Pacemaker amp schem from AMPAGE library ** Click here for FTP listings! ** More Vox Schematics in the Archives! Guitars and Effects Blue Guitar harnesses franken1.gif [179k] FrankenStrat wiring harness for 2 humbuckers and 1 single coil pickup prstrat9.gif [10k] PRStrat wiring harness for 2 humbuckers sprstr_2.gif [11k] Sup'rStrat wiring harness for 3 single coil pickups ** Click here for FTP listings! ** More Guitar Wiring Diagrams from Blue Guitar in the Archives! Misc Effects dod_fx30.zip [104k] DOD FX-30 Noise Gate: Mod to use external trigger for tremelo effects, etc. jfet_preamp.gif [16k] FET preamps from Stars Guitars and Dwarf amp ss_preamp.gif [11k] Another ss guitar preamp with Vol, Gain, Bass, Treble tubewah.jpg [230k] Tube Wah tubewah1.gif [36k] Tube Wah (redrawn) vox_treboost.gif [45k] Vox Treble Booster (FX) from Leper's site ** Click here for FTP listings! ** More FX Schematics in the Archives! Misc Guitar Wiring stratoblaster.jpg [78k] Alembic Stratoblaster preamp ec_midbst_all.zip [1240k] Active mid boost on EC Strat guitwire.zip [832k] GP's Four Fabulous D.I.Y Pickup Tricks (from 2/93) guitdiagram.zip [286k] Higher-res diagrams only from above jag_jazz.gif [90k] Wiring harnesses for Fender Jaguar, Jazzmaster and Tele Custom jpage_lp.gif [25k] Jimmy Page model Les Paul wiring harness (w/ 4 p-p pots) kahler_fr.zip [247k] Kahler instruction sheet for Floyd Rose licensed trem strat_blend1.pdf [11k] Strat harness with custom blend pot from David Harris strat_da.jpg [80k] Dan Armstrong custom harness for strat using 3 DPDT mini-toggle sw superck1.pdf [21k] Schector Superock wiring harness updated for modern p-p pots superck2.pdf [21k] Superock (as above but allows for hum-cancelling s.c. linkages) tele4way.jpg [130k] Tele 4-way switch from Fender Custom Shop tele5way.gif [6k] Tele harness with 5-way Yamaha selector switch from Gus Smalley varitone_edit.gif [42k] Thinline wiring harness (edited) toneczar.zip [834k] Tone Czar® wiring harnesses from Ed Rembold ** Click here for FTP listings! ** More Guitar Wiring Diagrams in the Archives! Other Files http://www.acdsystems.com/ [link] ACDSee32 v2.4 (link to site) coa32.zip [296k] PCMag's Change of Address utility (32 bit) hw32v22.zip [893k] Hex Workshop version 2.2 jic200.zip [1970k] JASC Image Commander version 2.00 regsvr.zip [92k] Registry backup utility http://www.xs4all.nl/~theroge/ RogSoft homepage to download Notepad+ (nnplus.zip [206k]) template.pdx [44k] Tube amp template for Mayura Draw from Bruce Collins of Mission Amps tonelite.zip [25k] Dave Cigna's ToneLite program (tone stack simulator). Temporarily uploaded here until his site is back up. http://www.duncanamps.com/tsc/ Webpage for Duncan's Tone Stack Calculator twinfind.zip [221k] PCMag's TwinFind utility wc2guide.pdf [86k] Warcraft ][ Guide (keyboard shortcuts and unit stats)
Links to Other User Sites http://acplink.com/ ACPlink- pix and schems of MANY amps http://www.adadepot.com/ ADA Depot- One stop resource for everything ADA! http://www.aikenamps.com/ Aiken Amplification (Best site on tube amp theory out there!) http://www.firebottle.com/ampage/ AMPAGE ("best resource for tube amps on the Web") http://www.amptone.com/amplinks.htm Amptone.com guitar amps links page http://www.muzique.com/ AMZ- schematics for guitar effects http://hail-eris.com/~stompbox/pedals/ Aron Nelson's stompbox Page [old link] http://www.ax84.com/ AX84 Project Home Page http://www03.u-page.so-net.ne.jp/wa2/wmorgan/index.html Bill's World (Bill Morgan's site- much Dumble info!) [dead link] http://hem.passagen.se/ekabjan/ Björn Anger's Site (Gibson amps galore!) http://www.mif.pg.gda.pl/homepages/tom/schematics.htm Cool Schematics http://duncanamps.com/ Duncan's Amp Pages http://www.j.philpott.com/effectronics/ Effectronics' site http://surf.to/electroharmonix Electro-Harmonix user site (The EH Man!) http://www.faradnet.com/ FaradNet, The Capacitor Resource http://www.ampwares.com/ffg/ The Fender Amp Field Guide http://www.gaganbros.com Tim and Joe Gagan's site [bad link] http://www.lynx.bc.ca/~jc/garnet.html Garnet Amp schematics http://www.geocities.com/dowardhumble/ Generic Amp site [dead link] http://www.geofex.com/ GEO FEX (R.G. Keen's great site) http://home.earthlink.net/~ayan/ Gil Ayan's site http://mysite.verizon.net/jazz.guitar/guitarsetup.htm Guitar setup tips http://pg.photos.yahoo.com/ph/guns_r_us/my_photos Joe Lemoine's Briefcase (lots of Soldano pix!) http://hem.passagen.se/lako63/ Lars Kohkoinen's site http://www.lazyfinger.com/ Lazyfinger's FX schematic swap site [bad link?] http://www.wcug.wwu.edu/~jamie/schems.html Leper's Effects Schematics [bad link] http://www.freeyellow.com/members2/lord-valve/ Lord Valve's site (AKA Fat Willie) [bad link] http://www.freeshell.org/~acruhl/mga/ Machine Gun Amps by Andy Ruhl [bad link] http://www.marshallschematics.com Marshall Amp Schematics from the Schematic Guy http://lifeingeneral.com/tubes/ Nothing Shocking Electronics' site (Andy Turner) [bad link] http://www.obsoleteelectronics.com/ Obsolete Electronics (Joe Pampel's site) http://www.nanaimo.ark.com/~pat/ Pat's Schematics (¢ommer¢ial $ite!) [bad link] http://www.geocities.com/SunsetStrip/Studio/2987/ Plate to Plate (GFR's site) http://vintageamps.com/index.html Plexi Palace site http://www.tone-lizard.com/ Randy Jamz' site (much info on Garnet amps!) http://www.ma.umist.ac.uk/rl/ Rob Livesey's site http://www.sound.au.com/ Rod Elliott's Audio Pages http://www.schematicheaven.com/ Schematic Heaven (Deltabluesman) http://www.shinrock.com/Schaltplane/schaltplanegitar.html Shinrock amp schematics page (German) http://members.tripod.com/~roymal/ Spring Reverb Info (Roy Mallory's site) http://www.fortunecity.com/tinpan/humperdinck/223/ Stellan's Schematics: Guitar & Audio http://homepages.strath.ac.uk/~cnbp111/ Stephen Conner's site [bad link] http://www.geocities.com/vintage325/ The Vintage 325 Connection (great info on Rickenbacker and Vox) http://www.hut.fi/~then/ Tomi Engdahl's home page http://www.geocities.com/SunsetStrip/Birdland/5297/schematics.html Torchio's Guitar site [bad link] http://www.lynx.bc.ca/~jc/traynorSchmArchive.html Traynor Amp schematics http://www.triodeel.com/schindex.htm Comprehensive page of amp schematic links from Triode Electronics! http://www.waltzingbear.com/ Waltzingbear's Pro Audio schematics Vendor Sites http://www.alliedelec.com/ Allied Electronics http://www.analogman.com// aNaLoG.MaN Vintage Guitar Effects Index http://www.tubesandmore.com/ Antique Electronic Supply http://www.deaf-eddie.net/ Deaf Eddie guitar harnesses & mods [5 stars!] http://www.digikey.com/ Digi-Key Electronics http://www.dimarzio.com/ DiMarzio Guitar Pickups http://www.fender.com/ Fender (and Mr. Gearhead!) http://www.fralinpickups.com/ Fralin Pickups homepage http://www.fuchsaudiotechnology.com/ Fuchs Audio Technology http://www.gibson.com/ Gibson http://www.hatcheramps.com/ Hatcher Amps- vintage amps with a twist! http://www.hoffmanamps.com/ Hoffman Amps (great layouts for classic amps!) http://www.jensen-transformers.com/ Jensen Transformers http://www.KangarooAmpCovers.com Kangaroo Amp Covers http://www.londonpower.com/ London Power (Kevin O'Connor's company) http://www.mandgamplification.com/ M & G Amplification (Mike Kach's company) [dead link] http://www.missionamps.com/ Mission Amps (Bruce Collins) Great amps & kits! http://www.mouser.com/ Mouser Electronics (great source for many parts!) http://www.obsoleteelectronics.com/ Obsolete Electronics (Great transformers!) http://www.paia.com/ PAiA Electronics http://www.rickenbacker.com/ Rickenbacker Guitars http://www.seymourduncan.com/ Seymour Duncan http://www.shinrock.com/ Shinrock Transformers http://www.stewmac.com/ Stewart-MacDonald's Guitar Shop Supply http://store.triodestore.com/ Triode Electronics (Uncle Ned!) http://www.geocities.com/c30guard TubeGuard for Peavey Classic 30! http://www.voodooamps.com Voodoo Amps (Trace's company) http://www.voxamps.co.uk/support/vdlmenu.htm Vox schematics from Vox-UK [bad link] http://www.tedweber.com/ Weber Vintage Sound Technology http://www.zinky.com/ Zinky Amps from Bruce Zinky (Smokey, MOFO, True Grit)
Thanks to all of you who have contributed schematics to this site!
If there are other schematics you are looking for, I suggest that you first start a thread under the appropriate forum at the AMPAGE Tech-Talk BBS:
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