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  1. 2015 VOX Ac30c2 service manual
  2. Drop preamp voltage
  3. Fun new zener tweak!
  4. Convert 5F6A Bassman into 5F8A Twin
  5. Blues Jr, any mods or advice available to convert tube mount pcb to hard wired?
  6. Newest Peavey Classic 30 - Blue Guitar Mods?
  7. Cathode bypass gain boost questions
  8. converting 6sc7 amp to use 6sl7
  9. 6CA7 tubes something different in the place of EL34 ??
  10. Remove ground lift network? JCM900 dual reverb
  11. Gallien Krueger MB150S-III adding Boost circuit ala GK MB150E-III
  12. JCM900 4500 Mod: C27 Jumper or...
  13. cathodyne/LTP switch (for small P-P amp)
  14. Replacing my tone control with an Orange-style shape control
  15. Project! Convert push/pull 'boost pot' to a footswitchable jack?
  16. Fender Twin bias dilema
  17. Fender Ultralinear - KT66, 77 or KT88?
  18. Improved circuit for power tube tremolo in a fixed-bias amp
  19. Bias test points for PCB amp
  20. Fender Frontman 65R volume mod
  21. Peavey Classic VTX 65 watt combo question for Enzo
  22. Eyelet boarding a reissue amp (Fender)
  23. Which switch for high voltage switching?
  24. Carvin Belair - moding one channel
  25. Sound differences from different dual op amps in SS amps
  26. De-biasing a Peavey Classic VT (6L6 output stage)
  27. Tonestack help
  28. add an attenuator to an existing tweeter?
  29. mesa mk IV bias
  30. Conversion to acoustic amp
  31. Taming Fender Blues Deluxe Abrupt Volume Control
  32. Switchable VTM 60/120
  33. SF Twin reverb Ultra linear transformer Blackfacing
  34. Age Old Problem of TOOO Bright Super Reverb
  35. Deeper voicing on EVH5150iii
  36. Different types of power resistors
  37. What cap value for this idea?
  38. Mesa Nomad 55 Reduce the gain
  39. Vox Escort Mains/Battery amp power upgrade?
  40. Possible wrong installation of diodes in place of a 6X4
  41. Taming a Gibson tone stack
  42. "Tighter" Bass on a Tone King.
  43. Peavey xxx upgrades
  44. Cable runs and effect on tone
  45. Help with mod to Crate FW65 Combo
  46. Mesa .50cal EL84 version bias pot mod
  47. Switch ratings for mods with high voltage
  48. Musicman 75 head 2100EX too much overdrive
  49. Marshall DSL mod
  50. Any ideas for a temperature controlled fan for Bass amp
  51. Traynor YBA-3 dummy load to use 8 ohm cabinet?
  52. Slitting speaker cone or knitting needle ? Kinks content
  53. Vox lead escort 50 - integrating valve stage
  54. LTPI on a 6G2?
  55. Adding a footswitch to a Blackstar HT-1
  56. Fender Deluxe 112 Plus Too LOUD
  57. JCM 2000 Marshall TSL 100 mod to DSL 100 Specs
  58. Built-in solid state reverb circuit for tube amp homebrew...
  59. Reduce treble in Fender Frontman 212r clean channel with circuit mod
  60. Silverfacing a Deluxe Reverb
  61. Crate Vintage Club 30 /50 Remove V1 from the dirt channel to reduce gain
  62. ROLAND BOLT 30- 60 cycle hum...
  63. Fender Bassman AA864 variant - mods
  64. Peavey 6505+ 112 mod for channel balance
  65. Peavey Valveking Modifications
  66. tightening up BF Princeton reverb ?
  67. Best way to increase bass response...
  68. E-Wave DG2-30RH head Clean channel too bright
  69. ENGL E320 clean vol mod
  70. Trem and Bias
  71. marshall 1987x hiss reduction possible?
  72. Slope resistor and cap changes when changing a CF side to a 12ay7/12au7
  73. I wish to modify the tone stack in my Ashdown Mag 300 head.
  74. Using 12AT7 instead of 12AX7
  75. Subbing 12AU7 for 12AX7
  76. Any thoughts on how to "soften" attack on a Fender Bassman ?
  77. Fender Blues Junior excessive treble
  78. Looking for less low-cut in Randall RVC (like RD5C)
  79. Marshall JCM 900 mod
  80. Modding reverb
  81. Marshall Split channel again (some interesting information)
  82. Changing rectifier in a Ceriatone 5f6A Bassman
  83. guitar amp ->PA =cabulator
  84. Optocoupler in Fender tremolo
  85. Bugera 1960 infinium Schematic
  86. Epiphone Valve Junior OT upgrade -- help please???
  87. Hall Amplification VVR3 in Selmer Treble & Bass 50 Mk3
  88. modifying the Fender Greta line out
  89. Wanna help with basic mods...
  90. B+ voltage drop via Zener/MOSFET question
  91. Minimum output impedance for Marshall Lead 12.
  92. Hammond drawbars - guitar
  93. Peavey Bravo modifications
  94. Hot Rod Deville upgrade
  95. Twin reverb new speakers
  96. 65 Princeton reverb reissue Power transformer pn# 75165 Where can I get one ??
  97. Converting a PCB Champion 600 to a handwired 5F1
  98. Magnatone M13 - Easy Gain Boost
  99. Marshall DSL 100 - Mod to Switchable (50/100 watts)
  100. Fender Hot Rod Deluxe volume pot replacement
  101. Peavey Classic 50 Blue Mods
  102. 12AU7 failed in Orange AD30
  103. Crate gxt-100 is now a BENGL two more related mods needed
  104. Line-In to Active EQ of Fender Super Twin?
  105. Peavey Bandit 65 mods, anyone have any good mods?
  106. Best SGRs?
  107. Fender Greta Tone Control Mod for Music Playing Purposes
  108. Switchable Cathode Bypass Cap help
  109. Adding another tube to a Crate GXT100
  110. 6V6 bias question
  111. Marshall JCM800 4210 Channel Switcher - modification - advice sought.
  112. My amp needs to be louder, said the novice
  113. Marshall Valvestate - Adding Cooling Fan?
  114. Help with Mesa mark V CH2 mod
  115. JCA22H too bright
  116. Crate Gxt-100 looking for any mods
  117. The beauty of a decade box: ab763 tweaks
  118. non-presence 12ax7 phase inverter
  119. bugera 333xl-212 tone stack mod + more
  120. Silverface to Blackface
  121. Rivera S120 Mods - Please Help!
  122. Orange tiny Terror fx loop mod ?
  123. Help on DIY F2B with mods
  124. Changing Plate resistor question.
  125. Compilation of BF Reverb Fender Mods
  126. Guild Thunderbass 50Watt power supply issues
  127. Dual independent bias for a Windsor
  128. Amp Maker SE5 extra gain stage
  129. large PI tail resistor
  130. Bucking Transformer Built In to Chassis
  131. Univox U45b Tremolo
  132. Jcm 2210 mod help
  133. VHT Special 6 Ultra Mods
  134. Mod/Tweak VHT Special 6 Combo
  135. CRATE VC-3112 4xEL84 to 2xEL84 mod?
  136. "Fender" remote reverb control Badabing ka-pow!
  137. A couple questions about Peavey Butcher mods (should also apply to VTM)
  138. 5F1 Champ Mods - component ratings?
  139. 68 Princeton Reverb Bias Mod Question
  140. Moving clean ch. Tonestack on a 2210. Good idea?
  141. Can I add a Piezo tweeter to Peavey KB100?
  142. L-pad question
  143. Blackstar HT-1 - Add reverb?
  144. Useful Matchless Cluman mods?
  145. Line 100v amp conversion ?
  146. Add choke to blues junior (mexico)
  147. Music Man RD50 112 6l6 to 6v6
  148. LOW Gain !
  149. Looking for Bright options...
  150. DSL 401 mods
  151. prosonic combo weak reverb
  152. Marshall AVT50 cd input too loud
  153. Princeton 112 Plus - Shutdown MOD
  154. Fender Bassman output waveform oscillations
  155. PPIMV in SF Twin 135
  156. Uberschall channel balance
  157. Modifying Princeton 112 plus - Make Dirty Channel Versatile Clean Channel
  158. Fender princeton 112 solid state too loud!!
  159. Converting AA371 Basssman to best sounding circuit for guitar- which one ?
  160. Bugera v22 mod questions from a beginner
  161. Mustang III
  162. Connect a combo amp to a 4x12 cab.. Can it be done?
  163. need to add an Fx loop to valve amp ?
  164. Mesa boogie Nomad 100 new speaker reqd
  165. Marshall 1987X. customer says too loud
  166. Help me please
  167. Anyone know where to get the Fender silverface push/pull master volume pots?
  168. What Have I Done??? Orange Rocker 30 OT Swap
  169. Adding Midrange control to this tone circuit
  170. Effects loop wont work ?????
  171. I know, Valvestate 150 mod to make clean channel worth using?
  172. FX Loop problems
  173. Univox U200B
  174. El 84 fixed bias amp & Paul Ruby zener mod.
  175. Fender Blues jnr Too much treble
  176. Switching jack needed?
  177. Marshall JCM 800 2204 FX loop advice
  178. Question about gain staging
  179. tube saving power up tweaks?
  180. Mark Moyer mods to "Custom" Vibrolux Reverb
  181. Adding a choke to Ampeg V-4 power supply?
  182. Using Kalamazoo Model One as a preamp.
  183. Older Traynor YCV40 Master Mod.....again
  184. triode/pentode high/low power switch
  185. Peavey Classic 30 Cathode Bias / Half wattage mod
  186. BF Fender VibroVerb and Deluxe Reverb double note intermod at 15 Fret
  187. Lowering the Voltage on Traynor YBA-1
  188. 1996 Marshall 1959SLP Reissue
  189. Volume pots with power switches
  190. Factory bulletins on the Fender Princeton 112+? Nope but here are some mods I did
  191. Mods for Fender Champion 30
  192. EL84 NFB
  193. HRD Fromel Mod
  194. Dana Hall's VVR Install: Marshall 50 watt Plexi 1987x
  195. 1968 Bandmaster TFL5005 amp cabinet swap
  196. 5e3 Internal jumpering on an on/off switch
  197. Fender Hot Rod Deville 410
  198. Tone control lift for an 18 watter
  199. adding tweeter to 2x10 bass cabinet
  200. boosting highs/ adding presence control?
  201. fender bright swith help
  202. 5F2-A Build - Help with -NFB and Pull Switch
  203. Marshall 18 watt TMB mods?
  204. Super Champ XD harsh treble--any popular mods?
  205. Vox Lil Night Train Fizzy Overdrive
  206. Fender Dual Showman Tremolo clicking and speed issues
  207. Too Much Compression - Heavy Squish - Parallel 12ay7 Tweed Style
  208. Replacing & interchanging reverb tanks
  209. Mod Troubles !
  210. External bias jack
  211. variable slope mod
  212. Mod fender vibrato circuit???
  213. cathode R value
  214. Cause of distortion pedal fizz on certain amps?
  215. Can two single ended OT's be wired for push pull use?
  216. BITMO mod for Valve Jr
  217. the bright cap (blues jr or any other amp w/one)
  218. Bassman 100 Filter cap help
  219. Fender blues jr - convert to cathode bias?
  220. Fender Champion 600 mod help...
  221. Tweed Deluxe Mods -- HELP!!!
  222. Remote controolled reverb on a Bassman????
  223. CLASSICTONE-50w-OT-Transformer for Marshall?
  224. I thought of using a 12AY7 in my SF Champ homebrew instead of a 12AX7
  225. Cascode/Triode Switch?
  226. Peavey Encore 65 Service, and Upgrade or Mods ?
  227. Orange Drop Caps vs. Ceramic Disk?
  228. Power Tube change questions
  229. Question in regards to treble bleed resistor
  230. Matchless spitfire clone?
  231. Peavey Delta Blues to Hi Gainer
  232. Robert M. Martinelli Vox Pathfinder mods
  233. Laney LC15R - too much heat - should I install a fan ?
  234. Ok to run only 2 KT88s in Fender Twin
  235. Fender Pro Reverb: KT88 mod?
  236. VC508_Line_Out_Without_Speaker_Kill
  237. The carlsbro 100 pa/r amplifier
  238. Sovtek Mig 50 distortion and gain increase mods
  239. OT impedance switch question
  240. Drilling holes for mods in chassis
  241. Building "the perfect Champ"
  242. Add tube rectifier?
  243. Crate GT1200H - Mod rhythm channel for more laid-back distortion
  244. phase inverter question
  245. Split Cathode Bias: Safe to run one tube?
  246. Power Transformer forVox Pathfinder 15R
  247. Filtercaps
  248. Marshall 800 mod question
  249. Modding Randall MTS Plexi module
  250. bright cap adjustment?