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  1. Fender Ultralinear - KT66, 77 or KT88?
  2. Improved circuit for power tube tremolo in a fixed-bias amp
  3. Bias test points for PCB amp
  4. Fender Frontman 65R volume mod
  5. Peavey Classic VTX 65 watt combo question for Enzo
  6. Eyelet boarding a reissue amp (Fender)
  7. Which switch for high voltage switching?
  8. Carvin Belair - moding one channel
  9. Sound differences from different dual op amps in SS amps
  10. De-biasing a Peavey Classic VT (6L6 output stage)
  11. Tonestack help
  12. add an attenuator to an existing tweeter?
  13. mesa mk IV bias
  14. Conversion to acoustic amp
  15. Taming Fender Blues Deluxe Abrupt Volume Control
  16. Switchable VTM 60/120
  17. SF Twin reverb Ultra linear transformer Blackfacing
  18. Age Old Problem of TOOO Bright Super Reverb
  19. Deeper voicing on EVH5150iii
  20. Different types of power resistors
  21. What cap value for this idea?
  22. Mesa Nomad 55 Reduce the gain
  23. Vox Escort Mains/Battery amp power upgrade?
  24. Possible wrong installation of diodes in place of a 6X4
  25. Taming a Gibson tone stack
  26. "Tighter" Bass on a Tone King.
  27. Peavey xxx upgrades
  28. Cable runs and effect on tone
  29. Help with mod to Crate FW65 Combo
  30. Mesa .50cal EL84 version bias pot mod
  31. Switch ratings for mods with high voltage
  32. Musicman 75 head 2100EX too much overdrive
  33. Marshall DSL mod
  34. Any ideas for a temperature controlled fan for Bass amp
  35. Traynor YBA-3 dummy load to use 8 ohm cabinet?
  36. Slitting speaker cone or knitting needle ? Kinks content
  37. Vox lead escort 50 - integrating valve stage
  38. LTPI on a 6G2?
  39. Adding a footswitch to a Blackstar HT-1
  40. Fender Deluxe 112 Plus Too LOUD
  41. JCM 2000 Marshall TSL 100 mod to DSL 100 Specs
  42. Built-in solid state reverb circuit for tube amp homebrew...
  43. Reduce treble in Fender Frontman 212r clean channel with circuit mod
  44. Silverfacing a Deluxe Reverb
  45. Crate Vintage Club 30 /50 Remove V1 from the dirt channel to reduce gain
  46. ROLAND BOLT 30- 60 cycle hum...
  47. Fender Bassman AA864 variant - mods
  48. Peavey 6505+ 112 mod for channel balance
  49. Peavey Valveking Modifications
  50. tightening up BF Princeton reverb ?
  51. Best way to increase bass response...
  52. E-Wave DG2-30RH head Clean channel too bright
  53. ENGL E320 clean vol mod
  54. Trem and Bias
  55. marshall 1987x hiss reduction possible?
  56. Slope resistor and cap changes when changing a CF side to a 12ay7/12au7
  57. I wish to modify the tone stack in my Ashdown Mag 300 head.
  58. Using 12AT7 instead of 12AX7
  59. Subbing 12AU7 for 12AX7
  60. Any thoughts on how to "soften" attack on a Fender Bassman ?
  61. Fender Blues Junior excessive treble
  62. Looking for less low-cut in Randall RVC (like RD5C)
  63. Marshall JCM 900 mod
  64. Modding reverb
  65. Marshall Split channel again (some interesting information)
  66. Changing rectifier in a Ceriatone 5f6A Bassman
  67. guitar amp ->PA =cabulator
  68. Optocoupler in Fender tremolo
  69. Bugera 1960 infinium Schematic
  70. Epiphone Valve Junior OT upgrade -- help please???
  71. Hall Amplification VVR3 in Selmer Treble & Bass 50 Mk3
  72. modifying the Fender Greta line out
  73. Wanna help with basic mods...
  74. B+ voltage drop via Zener/MOSFET question
  75. Minimum output impedance for Marshall Lead 12.
  76. Hammond drawbars - guitar
  77. Peavey Bravo modifications
  78. Hot Rod Deville upgrade
  79. Twin reverb new speakers
  80. 65 Princeton reverb reissue Power transformer pn# 75165 Where can I get one ??
  81. Converting a PCB Champion 600 to a handwired 5F1
  82. Magnatone M13 - Easy Gain Boost
  83. Marshall DSL 100 - Mod to Switchable (50/100 watts)
  84. Fender Hot Rod Deluxe volume pot replacement
  85. Peavey Classic 50 Blue Mods
  86. 12AU7 failed in Orange AD30
  87. Crate gxt-100 is now a BENGL two more related mods needed
  88. Line-In to Active EQ of Fender Super Twin?
  89. Peavey Bandit 65 mods, anyone have any good mods?
  90. Best SGRs?
  91. Fender Greta Tone Control Mod for Music Playing Purposes
  92. Switchable Cathode Bypass Cap help
  93. Adding another tube to a Crate GXT100
  94. 6V6 bias question
  95. Marshall JCM800 4210 Channel Switcher - modification - advice sought.
  96. My amp needs to be louder, said the novice
  97. Marshall Valvestate - Adding Cooling Fan?
  98. Help with Mesa mark V CH2 mod
  99. JCA22H too bright
  100. Crate Gxt-100 looking for any mods
  101. The beauty of a decade box: ab763 tweaks
  102. non-presence 12ax7 phase inverter
  103. bugera 333xl-212 tone stack mod + more
  104. Silverface to Blackface
  105. Rivera S120 Mods - Please Help!
  106. Orange tiny Terror fx loop mod ?
  107. Help on DIY F2B with mods
  108. Changing Plate resistor question.
  109. Compilation of BF Reverb Fender Mods
  110. Guild Thunderbass 50Watt power supply issues
  111. Dual independent bias for a Windsor
  112. Amp Maker SE5 extra gain stage
  113. large PI tail resistor
  114. Bucking Transformer Built In to Chassis
  115. Univox U45b Tremolo
  116. Jcm 2210 mod help
  117. VHT Special 6 Ultra Mods
  118. Mod/Tweak VHT Special 6 Combo
  119. CRATE VC-3112 4xEL84 to 2xEL84 mod?
  120. "Fender" remote reverb control Badabing ka-pow!
  121. A couple questions about Peavey Butcher mods (should also apply to VTM)
  122. 5F1 Champ Mods - component ratings?
  123. 68 Princeton Reverb Bias Mod Question
  124. Moving clean ch. Tonestack on a 2210. Good idea?
  125. Can I add a Piezo tweeter to Peavey KB100?
  126. L-pad question
  127. Blackstar HT-1 - Add reverb?
  128. Useful Matchless Cluman mods?
  129. Line 100v amp conversion ?
  130. Add choke to blues junior (mexico)
  131. Music Man RD50 112 6l6 to 6v6
  132. LOW Gain !
  133. Looking for Bright options...
  134. DSL 401 mods
  135. prosonic combo weak reverb
  136. Marshall AVT50 cd input too loud
  137. Princeton 112 Plus - Shutdown MOD
  138. Fender Bassman output waveform oscillations
  139. PPIMV in SF Twin 135
  140. Uberschall channel balance
  141. Modifying Princeton 112 plus - Make Dirty Channel Versatile Clean Channel
  142. Fender princeton 112 solid state too loud!!
  143. Converting AA371 Basssman to best sounding circuit for guitar- which one ?
  144. Bugera v22 mod questions from a beginner
  145. Mustang III
  146. Connect a combo amp to a 4x12 cab.. Can it be done?
  147. need to add an Fx loop to valve amp ?
  148. Mesa boogie Nomad 100 new speaker reqd
  149. Marshall 1987X. customer says too loud
  150. Help me please
  151. Anyone know where to get the Fender silverface push/pull master volume pots?
  152. What Have I Done??? Orange Rocker 30 OT Swap
  153. Adding Midrange control to this tone circuit
  154. Effects loop wont work ?????
  155. I know, Valvestate 150 mod to make clean channel worth using?
  156. FX Loop problems
  157. Univox U200B
  158. El 84 fixed bias amp & Paul Ruby zener mod.
  159. Fender Blues jnr Too much treble
  160. Switching jack needed?
  161. Marshall JCM 800 2204 FX loop advice
  162. Question about gain staging
  163. tube saving power up tweaks?
  164. Mark Moyer mods to "Custom" Vibrolux Reverb
  165. Adding a choke to Ampeg V-4 power supply?
  166. Using Kalamazoo Model One as a preamp.
  167. Older Traynor YCV40 Master Mod.....again
  168. triode/pentode high/low power switch
  169. Peavey Classic 30 Cathode Bias / Half wattage mod
  170. BF Fender VibroVerb and Deluxe Reverb double note intermod at 15 Fret
  171. Lowering the Voltage on Traynor YBA-1
  172. 1996 Marshall 1959SLP Reissue
  173. Volume pots with power switches
  174. Factory bulletins on the Fender Princeton 112+? Nope but here are some mods I did
  175. Mods for Fender Champion 30
  176. EL84 NFB
  177. HRD Fromel Mod
  178. Dana Hall's VVR Install: Marshall 50 watt Plexi 1987x
  179. 1968 Bandmaster TFL5005 amp cabinet swap
  180. 5e3 Internal jumpering on an on/off switch
  181. Fender Hot Rod Deville 410
  182. Tone control lift for an 18 watter
  183. adding tweeter to 2x10 bass cabinet
  184. boosting highs/ adding presence control?
  185. fender bright swith help
  186. 5F2-A Build - Help with -NFB and Pull Switch
  187. Marshall 18 watt TMB mods?
  188. Super Champ XD harsh treble--any popular mods?
  189. Vox Lil Night Train Fizzy Overdrive
  190. Fender Dual Showman Tremolo clicking and speed issues
  191. Too Much Compression - Heavy Squish - Parallel 12ay7 Tweed Style
  192. Replacing & interchanging reverb tanks
  193. Mod Troubles !
  194. External bias jack
  195. variable slope mod
  196. Mod fender vibrato circuit???
  197. cathode R value
  198. Cause of distortion pedal fizz on certain amps?
  199. Can two single ended OT's be wired for push pull use?
  200. BITMO mod for Valve Jr
  201. the bright cap (blues jr or any other amp w/one)
  202. Bassman 100 Filter cap help
  203. Fender blues jr - convert to cathode bias?
  204. Fender Champion 600 mod help...
  205. Tweed Deluxe Mods -- HELP!!!
  206. Remote controolled reverb on a Bassman????
  207. CLASSICTONE-50w-OT-Transformer for Marshall?
  208. I thought of using a 12AY7 in my SF Champ homebrew instead of a 12AX7
  209. Cascode/Triode Switch?
  210. Peavey Encore 65 Service, and Upgrade or Mods ?
  211. Orange Drop Caps vs. Ceramic Disk?
  212. Power Tube change questions
  213. Question in regards to treble bleed resistor
  214. Matchless spitfire clone?
  215. Peavey Delta Blues to Hi Gainer
  216. Robert M. Martinelli Vox Pathfinder mods
  217. Laney LC15R - too much heat - should I install a fan ?
  218. Ok to run only 2 KT88s in Fender Twin
  219. Fender Pro Reverb: KT88 mod?
  220. VC508_Line_Out_Without_Speaker_Kill
  221. The carlsbro 100 pa/r amplifier
  222. Sovtek Mig 50 distortion and gain increase mods
  223. OT impedance switch question
  224. Drilling holes for mods in chassis
  225. Building "the perfect Champ"
  226. Add tube rectifier?
  227. Crate GT1200H - Mod rhythm channel for more laid-back distortion
  228. phase inverter question
  229. Split Cathode Bias: Safe to run one tube?
  230. Power Transformer forVox Pathfinder 15R
  231. Filtercaps
  232. Marshall 800 mod question
  233. Modding Randall MTS Plexi module
  234. bright cap adjustment?
  235. Peavey Vypyr 15 Noise Gate
  236. JFET Switching and Isolation, question
  237. Tremolo mod on 1960s Ampeg Rocket 2 amp
  238. Adding MIDI CC Support to the Diezel Herbert, VH4, and Hagen
  239. JCM800 4211 mods?
  240. Bias Mod For Peavey Mace VT
  241. Dummy Load
  242. Input-level on Fender Frontman 212R
  243. 6973EH tubes for little Valco amps
  244. 15" speaker?
  245. AC30CC2 Reverb mod question....
  246. Soft start for tubes
  247. Silvertone after a few minor mods
  248. advice on a simple mod, just for the experience.
  249. laney VC30 drive channel mod
  250. "adaptor boxes"