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  1. Mooer Elec Lady Flanger - Volume Drop Mod
  2. Reducing Voltage On Laney Supergroup 60 Watt
  3. Looking for the dookie mod
  4. Sano 50 WRT - convert 8417 to 6550 or 6L6
  5. Can I "Raw Control" or Tone Stack bypass pot?
  6. How to test output transformer performance for overperforming amp
  7. Mads Vox ac30c2
  8. 12AY7 PI tube, good, bad or ugly? Your thoughts please.
  9. 5f1 champ w/electronic reverb
  10. reducing reverb effect in deluxe reverb aa763 circuit?
  11. Champ 600 EQ mod balls-up!
  12. More Thomas Vox repair manuals
  13. Negative feedback, and resonance question?
  14. BF Princeton Reverb - wider range for treble pot
  15. Schematic question?
  16. Preamp stage help please.
  17. Modding gain stage on amp
  18. How does this look for a boosted up reverb unit circuit?
  19. Peavey Delta Blues Distorted
  20. Teach me a little something about NFB in a Deluxe Reverb
  21. 65 ReIssue Super Reverb Midrange Pot change
  22. Tweed Deluxe Coupling Cap Changes
  23. Suggested Mods for Peavey Butcher - Negative Feedback Loop Tone control?
  24. Adjustable bias and measuring points Valve King 112
  25. Peavey Artist VT resonance & presence mods
  26. Marshall JTM 60 choke mod
  27. Peavey Valveking Pre PI Master Volume mod Thoughts?
  28. THD picovalve
  29. Marshall dsl 15 h mod help
  30. Watkins Dominator extra stage?
  31. Power supply filtering
  32. Understanding/improving JTM60 FX LOOP
  33. 5E3 cascading inputs MAD FEEDBACK! Need fix
  34. Replace 2 x12" speakers with 1x 15", possible? Worth it?
  35. adding DC heaters to a high gain 100 watt amp
  36. ValveKing 100 mod questions
  37. Orange Dark Terror. Mod for more resonance.?
  38. Elevated AC heaters?
  39. Mods for a B-52 ST100A (can get one dirt cheap)
  40. Hum/Noise vs shielded cable or twisted wires in a Peavey Triumph 60
  41. A bit confused about V1 and V2 in my Mesa F-50
  42. LED activation from 5v winding?
  43. advice on more bass and treble from "Micro Champ"
  44. effects loop idea
  45. question about mods to valve amps
  46. Inexpensive L-Pads...
  47. Change led color and some mod to footswitch
  48. Hammond / Everett AO-50 conversion to Vox AC15
  49. Mesa Boogie F-50.. what is this?
  50. Question about using relays for foot s/w
  51. Bugera V22 Infinium CHOKE mod
  52. Opinions on a relay activated volume boost
  53. Bright Switch/Cap Wiring
  54. would a Master Volume solve my issue?
  55. MOSFET PI, how to Bias?
  56. Fender M80 Overdrive Channel
  57. Ampeg Ba 210 SP High EQ mod?
  58. Can't Turn Volume Completely Off
  59. Solder Both Sides of PCB?
  60. Adding gain stage to Marshall 2203; handling the 10k cold clipped stage
  61. Adding an on/off reverb switch to vintage amp
  62. Fender Twin Reverb
  63. DSL 100: Changing Grid Blockers and Bias Resistors
  64. Mesa Boogie SPAX7 in a Peavey Valve King Head.
  65. Effects loop on a AC15CHWX
  66. New AB763 Blackface Mods Page (includes DRRI & 68 CDR)
  67. Ampeg B-15 Preamp...
  68. Modding Boost Switch on Bugera V22
  69. 65 Blackface Fender Showman PPIMV
  70. Peavey Valve King 112 Dynamics/Attack/Gain fuzz MOD
  71. Final tweaking of a 1959SLP Re-issue..
  72. JTM60/JCM600 important MODS
  73. Adding a choke to Sovtek Mig 60
  74. I wish I had one of these years ago - '71 Traynor YBA-1 gets Plexi modded ** CLIP **
  75. Peavey Triumph 60 Hum
  76. Fender Frontman Mod.
  77. Removing power valves to reduce output
  78. Fender Reverb Mods
  79. Vox DA5 lineout modification - speaker bypass
  80. Princeton 112 Plus - 50k 15A Volume Pot Mod - Part Number And Source Needed, Please
  81. Possible to add NFB to this schematic?
  82. lower wattage in 5E7A tweed pro?
  83. Peavey Classic 50 Blue Guitar Mods
  84. I think it's attenuater time
  85. Pushing V2 harder within older fenders. Pre-amp clipping mod?
  86. Bassman AA568 unused triode applications
  87. Super Reverb '65 RI - Changing Output Transformer to Match Speaker Load
  88. Log/ Lin Bass Pot (DlxRev).
  89. EL34 in a Champ?
  90. Blackstar Artisan 100 circuit PPIMV and FX Loop Mods
  91. 6150+ Mods and a real engineer guitarist!
  92. Adding Filament Transformer to Sovtek Mig-50. How to place it?
  93. Thank you Valvewizard - Ground, hum blocking
  94. Replacement speakers poll
  95. Bias points
  96. 5150 bias mod
  97. Fender Pro Jr More Bass
  98. Trying New Speakers/replacements
  99. Marshall Amp increase Bass/low-mid response
  100. Can y'all help me with a minor mod to a Peavey Rage 158?
  101. Relay wiring for Vox Night Train mod
  102. Adding additional input output to Line6 spider ii amp
  103. Suggestion for moderator - let's spell "Tweeks" correctly!
  104. Looking for more gain mod schematic jcm800 2210
  105. Negative feedback loop mod for Pro Reverb
  106. Using Combo amp Speaker as Cab
  107. Marshall JVM
  108. Are SoZo blue caps the same as Fender blue caps?
  109. Line out help please
  110. I want to reduce the gain in my Peavey Rage 158.
  111. help with some peavey XXX mods
  112. Simplest way to turn a combo amp into both a head and a cab as well?
  113. Amp Mod for some More Gain?
  114. Bogen PA head for guitar? Help with pentode preamp stages.
  115. Another JTM60 1x12 thread/question... (haven't seen this one)
  116. Fender Blues Jnr Mk3 Mod
  117. What's this JCM800 mod do?
  118. What's this JCM800 mod do?
  119. Supro Inspired VVR Question
  120. MASSIVE improvement to Mesa Boogie SOB mod - How to add a real presence control
  121. Adding tube spring reverb to a Mesa Boogie SOB
  122. 5V4 instead of 5Y3 ?
  123. Bypass Digital Board in Super Champ XD (& possibly others)
  124. Epiphone valve standard to increase the treble
  125. Different Speaker Outputs On Marshall DSL 40C
  126. Help needed to upgrade Capacitors in a Marshall DSL 40C
  127. coupling cap to block some bass?
  128. Hicks mender
  129. 2015 VOX Ac30c2 service manual
  130. Drop preamp voltage
  131. Fun new zener tweak!
  132. Convert 5F6A Bassman into 5F8A Twin
  133. Blues Jr, any mods or advice available to convert tube mount pcb to hard wired?
  134. Newest Peavey Classic 30 - Blue Guitar Mods?
  135. Cathode bypass gain boost questions
  136. converting 6sc7 amp to use 6sl7
  137. 6CA7 tubes something different in the place of EL34 ??
  138. Remove ground lift network? JCM900 dual reverb
  139. Gallien Krueger MB150S-III adding Boost circuit ala GK MB150E-III
  140. JCM900 4500 Mod: C27 Jumper or...
  141. cathodyne/LTP switch (for small P-P amp)
  142. Replacing my tone control with an Orange-style shape control
  143. Project! Convert push/pull 'boost pot' to a footswitchable jack?
  144. Fender Twin bias dilema
  145. Fender Ultralinear - KT66, 77 or KT88?
  146. Improved circuit for power tube tremolo in a fixed-bias amp
  147. Bias test points for PCB amp
  148. Fender Frontman 65R volume mod
  149. Peavey Classic VTX 65 watt combo question for Enzo
  150. Eyelet boarding a reissue amp (Fender)
  151. Which switch for high voltage switching?
  152. Carvin Belair - moding one channel
  153. Sound differences from different dual op amps in SS amps
  154. De-biasing a Peavey Classic VT (6L6 output stage)
  155. Tonestack help
  156. add an attenuator to an existing tweeter?
  157. mesa mk IV bias
  158. Conversion to acoustic amp
  159. Taming Fender Blues Deluxe Abrupt Volume Control
  160. Switchable VTM 60/120
  161. SF Twin reverb Ultra linear transformer Blackfacing
  162. Age Old Problem of TOOO Bright Super Reverb
  163. Deeper voicing on EVH5150iii
  164. Different types of power resistors
  165. What cap value for this idea?
  166. Mesa Nomad 55 Reduce the gain
  167. Vox Escort Mains/Battery amp power upgrade?
  168. Possible wrong installation of diodes in place of a 6X4
  169. Taming a Gibson tone stack
  170. "Tighter" Bass on a Tone King.
  171. Peavey xxx upgrades
  172. Cable runs and effect on tone
  173. Help with mod to Crate FW65 Combo
  174. Mesa .50cal EL84 version bias pot mod
  175. Switch ratings for mods with high voltage
  176. Musicman 75 head 2100EX too much overdrive
  177. Marshall DSL mod
  178. Any ideas for a temperature controlled fan for Bass amp
  179. Traynor YBA-3 dummy load to use 8 ohm cabinet?
  180. Slitting speaker cone or knitting needle ? Kinks content
  181. Vox lead escort 50 - integrating valve stage
  182. LTPI on a 6G2?
  183. Adding a footswitch to a Blackstar HT-1
  184. Fender Deluxe 112 Plus Too LOUD
  185. JCM 2000 Marshall TSL 100 mod to DSL 100 Specs
  186. Built-in solid state reverb circuit for tube amp homebrew...
  187. Reduce treble in Fender Frontman 212r clean channel with circuit mod
  188. Silverfacing a Deluxe Reverb
  189. Crate Vintage Club 30 /50 Remove V1 from the dirt channel to reduce gain
  190. ROLAND BOLT 30- 60 cycle hum...
  191. Fender Bassman AA864 variant - mods
  192. Peavey 6505+ 112 mod for channel balance
  193. Peavey Valveking Modifications
  194. tightening up BF Princeton reverb ?
  195. Best way to increase bass response...
  196. E-Wave DG2-30RH head Clean channel too bright
  197. ENGL E320 clean vol mod
  198. Trem and Bias
  199. marshall 1987x hiss reduction possible?
  200. Slope resistor and cap changes when changing a CF side to a 12ay7/12au7
  201. I wish to modify the tone stack in my Ashdown Mag 300 head.
  202. Using 12AT7 instead of 12AX7
  203. Subbing 12AU7 for 12AX7
  204. Any thoughts on how to "soften" attack on a Fender Bassman ?
  205. Fender Blues Junior excessive treble
  206. Looking for less low-cut in Randall RVC (like RD5C)
  207. Marshall JCM 900 mod
  208. Modding reverb
  209. Marshall Split channel again (some interesting information)
  210. Changing rectifier in a Ceriatone 5f6A Bassman
  211. guitar amp ->PA =cabulator
  212. Optocoupler in Fender tremolo
  213. Bugera 1960 infinium Schematic
  214. Epiphone Valve Junior OT upgrade -- help please???
  215. Hall Amplification VVR3 in Selmer Treble & Bass 50 Mk3
  216. modifying the Fender Greta line out
  217. Wanna help with basic mods...
  218. B+ voltage drop via Zener/MOSFET question
  219. Minimum output impedance for Marshall Lead 12.
  220. Hammond drawbars - guitar
  221. Peavey Bravo modifications
  222. Hot Rod Deville upgrade
  223. Twin reverb new speakers
  224. 65 Princeton reverb reissue Power transformer pn# 75165 Where can I get one ??
  225. Converting a PCB Champion 600 to a handwired 5F1
  226. Magnatone M13 - Easy Gain Boost
  227. Marshall DSL 100 - Mod to Switchable (50/100 watts)
  228. Fender Hot Rod Deluxe volume pot replacement
  229. Peavey Classic 50 Blue Mods
  230. 12AU7 failed in Orange AD30
  231. Crate gxt-100 is now a BENGL two more related mods needed
  232. Line-In to Active EQ of Fender Super Twin?
  233. Peavey Bandit 65 mods, anyone have any good mods?
  234. Best SGRs?
  235. Fender Greta Tone Control Mod for Music Playing Purposes
  236. Switchable Cathode Bypass Cap help
  237. Adding another tube to a Crate GXT100
  238. 6V6 bias question
  239. Marshall JCM800 4210 Channel Switcher - modification - advice sought.
  240. My amp needs to be louder, said the novice
  241. Marshall Valvestate - Adding Cooling Fan?
  242. Help with Mesa mark V CH2 mod
  243. JCA22H too bright
  244. Crate Gxt-100 looking for any mods
  245. The beauty of a decade box: ab763 tweaks
  246. non-presence 12ax7 phase inverter
  247. bugera 333xl-212 tone stack mod + more
  248. Silverface to Blackface
  249. Rivera S120 Mods - Please Help!
  250. Orange tiny Terror fx loop mod ?