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  1. Replacing my tone control with an Orange-style shape control
  2. Project! Convert push/pull 'boost pot' to a footswitchable jack?
  3. Fender Twin bias dilema
  4. Fender Ultralinear - KT66, 77 or KT88?
  5. Improved circuit for power tube tremolo in a fixed-bias amp
  6. Bias test points for PCB amp
  7. Fender Frontman 65R volume mod
  8. Peavey Classic VTX 65 watt combo question for Enzo
  9. Eyelet boarding a reissue amp (Fender)
  10. Which switch for high voltage switching?
  11. Carvin Belair - moding one channel
  12. Sound differences from different dual op amps in SS amps
  13. De-biasing a Peavey Classic VT (6L6 output stage)
  14. Tonestack help
  15. add an attenuator to an existing tweeter?
  16. mesa mk IV bias
  17. Conversion to acoustic amp
  18. Taming Fender Blues Deluxe Abrupt Volume Control
  19. Switchable VTM 60/120
  20. SF Twin reverb Ultra linear transformer Blackfacing
  21. Age Old Problem of TOOO Bright Super Reverb
  22. Deeper voicing on EVH5150iii
  23. Different types of power resistors
  24. What cap value for this idea?
  25. Mesa Nomad 55 Reduce the gain
  26. Vox Escort Mains/Battery amp power upgrade?
  27. Possible wrong installation of diodes in place of a 6X4
  28. Taming a Gibson tone stack
  29. "Tighter" Bass on a Tone King.
  30. Peavey xxx upgrades
  31. Cable runs and effect on tone
  32. Help with mod to Crate FW65 Combo
  33. Mesa .50cal EL84 version bias pot mod
  34. Switch ratings for mods with high voltage
  35. Musicman 75 head 2100EX too much overdrive
  36. Marshall DSL mod
  37. Any ideas for a temperature controlled fan for Bass amp
  38. Traynor YBA-3 dummy load to use 8 ohm cabinet?
  39. Slitting speaker cone or knitting needle ? Kinks content
  40. Vox lead escort 50 - integrating valve stage
  41. LTPI on a 6G2?
  42. Adding a footswitch to a Blackstar HT-1
  43. Fender Deluxe 112 Plus Too LOUD
  44. JCM 2000 Marshall TSL 100 mod to DSL 100 Specs
  45. Built-in solid state reverb circuit for tube amp homebrew...
  46. Reduce treble in Fender Frontman 212r clean channel with circuit mod
  47. Silverfacing a Deluxe Reverb
  48. Crate Vintage Club 30 /50 Remove V1 from the dirt channel to reduce gain
  49. ROLAND BOLT 30- 60 cycle hum...
  50. Fender Bassman AA864 variant - mods
  51. Peavey 6505+ 112 mod for channel balance
  52. Peavey Valveking Modifications
  53. tightening up BF Princeton reverb ?
  54. Best way to increase bass response...
  55. E-Wave DG2-30RH head Clean channel too bright
  56. ENGL E320 clean vol mod
  57. Trem and Bias
  58. marshall 1987x hiss reduction possible?
  59. Slope resistor and cap changes when changing a CF side to a 12ay7/12au7
  60. I wish to modify the tone stack in my Ashdown Mag 300 head.
  61. Using 12AT7 instead of 12AX7
  62. Subbing 12AU7 for 12AX7
  63. Any thoughts on how to "soften" attack on a Fender Bassman ?
  64. Fender Blues Junior excessive treble
  65. Looking for less low-cut in Randall RVC (like RD5C)
  66. Marshall JCM 900 mod
  67. Modding reverb
  68. Marshall Split channel again (some interesting information)
  69. Changing rectifier in a Ceriatone 5f6A Bassman
  70. guitar amp ->PA =cabulator
  71. Optocoupler in Fender tremolo
  72. Bugera 1960 infinium Schematic
  73. Epiphone Valve Junior OT upgrade -- help please???
  74. Hall Amplification VVR3 in Selmer Treble & Bass 50 Mk3
  75. modifying the Fender Greta line out
  76. Wanna help with basic mods...
  77. B+ voltage drop via Zener/MOSFET question
  78. Minimum output impedance for Marshall Lead 12.
  79. Hammond drawbars - guitar
  80. Peavey Bravo modifications
  81. Hot Rod Deville upgrade
  82. Twin reverb new speakers
  83. 65 Princeton reverb reissue Power transformer pn# 75165 Where can I get one ??
  84. Converting a PCB Champion 600 to a handwired 5F1
  85. Magnatone M13 - Easy Gain Boost
  86. Marshall DSL 100 - Mod to Switchable (50/100 watts)
  87. Fender Hot Rod Deluxe volume pot replacement
  88. Peavey Classic 50 Blue Mods
  89. 12AU7 failed in Orange AD30
  90. Crate gxt-100 is now a BENGL two more related mods needed
  91. Line-In to Active EQ of Fender Super Twin?
  92. Peavey Bandit 65 mods, anyone have any good mods?
  93. Best SGRs?
  94. Fender Greta Tone Control Mod for Music Playing Purposes
  95. Switchable Cathode Bypass Cap help
  96. Adding another tube to a Crate GXT100
  97. 6V6 bias question
  98. Marshall JCM800 4210 Channel Switcher - modification - advice sought.
  99. My amp needs to be louder, said the novice
  100. Marshall Valvestate - Adding Cooling Fan?
  101. Help with Mesa mark V CH2 mod
  102. JCA22H too bright
  103. Crate Gxt-100 looking for any mods
  104. The beauty of a decade box: ab763 tweaks
  105. non-presence 12ax7 phase inverter
  106. bugera 333xl-212 tone stack mod + more
  107. Silverface to Blackface
  108. Rivera S120 Mods - Please Help!
  109. Orange tiny Terror fx loop mod ?
  110. Help on DIY F2B with mods
  111. Changing Plate resistor question.
  112. Compilation of BF Reverb Fender Mods
  113. Guild Thunderbass 50Watt power supply issues
  114. Dual independent bias for a Windsor
  115. Amp Maker SE5 extra gain stage
  116. large PI tail resistor
  117. Bucking Transformer Built In to Chassis
  118. Univox U45b Tremolo
  119. Jcm 2210 mod help
  120. VHT Special 6 Ultra Mods
  121. Mod/Tweak VHT Special 6 Combo
  122. CRATE VC-3112 4xEL84 to 2xEL84 mod?
  123. "Fender" remote reverb control Badabing ka-pow!
  124. A couple questions about Peavey Butcher mods (should also apply to VTM)
  125. 5F1 Champ Mods - component ratings?
  126. 68 Princeton Reverb Bias Mod Question
  127. Moving clean ch. Tonestack on a 2210. Good idea?
  128. Can I add a Piezo tweeter to Peavey KB100?
  129. L-pad question
  130. Blackstar HT-1 - Add reverb?
  131. Useful Matchless Cluman mods?
  132. Line 100v amp conversion ?
  133. Add choke to blues junior (mexico)
  134. Music Man RD50 112 6l6 to 6v6
  135. LOW Gain !
  136. Looking for Bright options...
  137. DSL 401 mods
  138. prosonic combo weak reverb
  139. Marshall AVT50 cd input too loud
  140. Princeton 112 Plus - Shutdown MOD
  141. Fender Bassman output waveform oscillations
  142. PPIMV in SF Twin 135
  143. Uberschall channel balance
  144. Modifying Princeton 112 plus - Make Dirty Channel Versatile Clean Channel
  145. Fender princeton 112 solid state too loud!!
  146. Converting AA371 Basssman to best sounding circuit for guitar- which one ?
  147. Bugera v22 mod questions from a beginner
  148. Mustang III
  149. Connect a combo amp to a 4x12 cab.. Can it be done?
  150. need to add an Fx loop to valve amp ?
  151. Mesa boogie Nomad 100 new speaker reqd
  152. Marshall 1987X. customer says too loud
  153. Help me please
  154. Anyone know where to get the Fender silverface push/pull master volume pots?
  155. What Have I Done??? Orange Rocker 30 OT Swap
  156. Adding Midrange control to this tone circuit
  157. Effects loop wont work ?????
  158. I know, Valvestate 150 mod to make clean channel worth using?
  159. FX Loop problems
  160. Univox U200B
  161. El 84 fixed bias amp & Paul Ruby zener mod.
  162. Fender Blues jnr Too much treble
  163. Switching jack needed?
  164. Marshall JCM 800 2204 FX loop advice
  165. Question about gain staging
  166. tube saving power up tweaks?
  167. Mark Moyer mods to "Custom" Vibrolux Reverb
  168. Adding a choke to Ampeg V-4 power supply?
  169. Using Kalamazoo Model One as a preamp.
  170. Older Traynor YCV40 Master Mod.....again
  171. triode/pentode high/low power switch
  172. Peavey Classic 30 Cathode Bias / Half wattage mod
  173. BF Fender VibroVerb and Deluxe Reverb double note intermod at 15 Fret
  174. Lowering the Voltage on Traynor YBA-1
  175. 1996 Marshall 1959SLP Reissue
  176. Volume pots with power switches
  177. Factory bulletins on the Fender Princeton 112+? Nope but here are some mods I did
  178. Mods for Fender Champion 30
  179. EL84 NFB
  180. HRD Fromel Mod
  181. Dana Hall's VVR Install: Marshall 50 watt Plexi 1987x
  182. 1968 Bandmaster TFL5005 amp cabinet swap
  183. 5e3 Internal jumpering on an on/off switch
  184. Fender Hot Rod Deville 410
  185. Tone control lift for an 18 watter
  186. adding tweeter to 2x10 bass cabinet
  187. boosting highs/ adding presence control?
  188. fender bright swith help
  189. 5F2-A Build - Help with -NFB and Pull Switch
  190. Marshall 18 watt TMB mods?
  191. Super Champ XD harsh treble--any popular mods?
  192. Vox Lil Night Train Fizzy Overdrive
  193. Fender Dual Showman Tremolo clicking and speed issues
  194. Too Much Compression - Heavy Squish - Parallel 12ay7 Tweed Style
  195. Replacing & interchanging reverb tanks
  196. Mod Troubles !
  197. External bias jack
  198. variable slope mod
  199. Mod fender vibrato circuit???
  200. cathode R value
  201. Cause of distortion pedal fizz on certain amps?
  202. Can two single ended OT's be wired for push pull use?
  203. BITMO mod for Valve Jr
  204. the bright cap (blues jr or any other amp w/one)
  205. Bassman 100 Filter cap help
  206. Fender blues jr - convert to cathode bias?
  207. Fender Champion 600 mod help...
  208. Tweed Deluxe Mods -- HELP!!!
  209. Remote controolled reverb on a Bassman????
  210. CLASSICTONE-50w-OT-Transformer for Marshall?
  211. I thought of using a 12AY7 in my SF Champ homebrew instead of a 12AX7
  212. Cascode/Triode Switch?
  213. Peavey Encore 65 Service, and Upgrade or Mods ?
  214. Orange Drop Caps vs. Ceramic Disk?
  215. Power Tube change questions
  216. Question in regards to treble bleed resistor
  217. Matchless spitfire clone?
  218. Peavey Delta Blues to Hi Gainer
  219. Robert M. Martinelli Vox Pathfinder mods
  220. Laney LC15R - too much heat - should I install a fan ?
  221. Ok to run only 2 KT88s in Fender Twin
  222. Fender Pro Reverb: KT88 mod?
  223. VC508_Line_Out_Without_Speaker_Kill
  224. The carlsbro 100 pa/r amplifier
  225. Sovtek Mig 50 distortion and gain increase mods
  226. OT impedance switch question
  227. Drilling holes for mods in chassis
  228. Building "the perfect Champ"
  229. Add tube rectifier?
  230. Crate GT1200H - Mod rhythm channel for more laid-back distortion
  231. phase inverter question
  232. Split Cathode Bias: Safe to run one tube?
  233. Power Transformer forVox Pathfinder 15R
  234. Filtercaps
  235. Marshall 800 mod question
  236. Modding Randall MTS Plexi module
  237. bright cap adjustment?
  238. Peavey Vypyr 15 Noise Gate
  239. JFET Switching and Isolation, question
  240. Tremolo mod on 1960s Ampeg Rocket 2 amp
  241. Adding MIDI CC Support to the Diezel Herbert, VH4, and Hagen
  242. JCM800 4211 mods?
  243. Bias Mod For Peavey Mace VT
  244. Dummy Load
  245. Input-level on Fender Frontman 212R
  246. 6973EH tubes for little Valco amps
  247. 15" speaker?
  248. AC30CC2 Reverb mod question....
  249. Soft start for tubes
  250. Silvertone after a few minor mods