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  1. humming issue, and grounding schemes...help..
  2. marshall jubilee 2554 combo, no choke.
  3. Laney AOR Series II mod, fx loop, AOR gain
  4. Independent Concentric Pots???
  5. Dr. Z 6545 Presence Control
  6. That 500k Grid Bias Mod [5e3]
  7. Which post-PI MV to use?
  8. Relays and hum
  9. Mesa Boogie F50
  10. Finished my amp.....................finally!!!
  11. Marshall 2204 channel switcher mod?
  12. Adding Reverb to a 5E3????
  13. Musicman RD-50 112 mod
  14. More gain - 5e3?
  15. More gain from a 5G15 reverb unit
  16. Class AB2: $5, .5 hr
  17. Possible mods for Mk1 Boogie?
  18. Reverb mods for '70's Super Reverb
  19. REmoting panel controls
  20. Transformer help
  21. Any good mod for a 2550 Marshall?
  22. Pulling 2 tubes in a V32 Palomino
  23. Updates on the Classic 30 mods?
  24. Anybody up to mod a Crate VC2110 (non-reverb)?
  25. 72 Princeton overhaul?
  26. will this kill my power amp/OT?
  27. Add a headphone jack
  28. mods for a LC30
  29. Let there be mods....
  30. Marshall Lead 12 5005 combo
  31. jmp superbass kt66's substitution
  32. Home made Attenuator questions
  33. Crate BV60 mod
  34. Solen, Black Gate, etc for Power Supply
  35. Bright Caps on Volume Pot
  36. Regulators
  37. volume pot mods - smoother
  38. mesa tremoverb tremolo mod
  39. Help with some Marshall questions, please?
  40. What are some mods to get a little more gain from a Fender?
  41. Mesa Mark III triode/pentode question
  42. NFB / PPIMV question
  43. any help would be appreciated
  44. Reducing Vs to 1/2 B+
  45. need help - mini marshall ms-2
  46. Filtering in Silverface Deluxe Reverb
  47. Super Twin Reverb Mods
  48. Toast Rack SE
  49. Matchless Style Cut Control on SE amp
  50. Fender Bassman 10 project
  51. New owner of a Peavey Classic 50 4X10
  52. Matchless EF86 Channel from DC30 (for Spitfire)
  53. 'Zener Mod' on 12AX7 Gain Stage
  54. Bias doubler circuit
  55. Groove Tubes amp
  56. torres engineering tube rec. kit
  57. installing a reverb tank
  58. EF86 Preamp - ala Route 66: more grind??
  59. Can I replace 8417 with 6550 tubes?
  60. A possible twist on the power attenuator?
  61. tube dampers
  62. AA270 Twin Reverb, bias & phase inverter
  63. Make a SF Bassman louder!
  64. What's the diff. in filament voltage between a 6L6/KT66?
  65. Anyone subbed KT66's in a BF Bassman?
  66. Vox AC30 8 OHM & 16 Ohm?
  67. Presence control mod
  68. Move Fender tone stack to back of pots?
  69. Presence Control in Fender Princeton
  70. Adding 'verb to a Tweed Bassman
  71. Matchless Varitone Switch: Wiring diagrams??
  72. Ghost in the (Matchless) machine – a call to armchair quarterbacks
  73. up close and personal...
  74. "Soul Control" for Fenders: Craptacular Mod?
  75. Blackfacing a SF Bandmaster. Zener diode for B+ drop?
  76. Simple master vol mod for Valve Junior Q.
  77. Modding a Fender style 'bright' input.
  78. blackfacing a silverface bassman 50
  79. Fender bassman Ten mods
  80. Peavey Valveking 112 Mod ?
  81. JCM 900 frying speakers
  82. 6SJ7 gain set up?
  83. CK switch on first stage
  84. Egnater amp build seminar Feb'07
  85. modding SS amps?
  86. Soul control
  87. "Cut" control
  88. Single Ended SLO project
  89. Modding a Fender Hot rod Deluxe R78 & R79 offboard
  90. Looking for opinions on transformers....
  91. Fender Super Reverb
  92. 5E3 Gain mod questions
  93. Marshall 2204?
  94. SVT Voltage Mod/Dropping Resistor
  95. Bridging the inputs on Marshall
  96. 66 blackface fender bassman
  97. Cross-line master volume problem
  98. univox u-1000 with a suspicious mod?
  99. Newbie with a bias mod question
  100. How far can you go?
  101. Laney AOR 100 Mods to AOR Channel
  102. BF Twin Reverb mod suggestions
  103. BF Twin Reverb mod suggestions
  104. Hee... Check out my coffee can attenuator!
  105. I have a strange amp.
  106. post-PI Cut and/or Tone controls
  107. Hey Enzo.....
  108. Blues Deville overdrive mod oddity
  109. Using hifi-amp
  110. Post PI master
  111. silicon diodes as 'failsafe' feature on tube rectified amp?
  112. mods on a jcm 2000 tsl 100?
  113. bias mod for the mesa boogie subway rocket
  114. PI mod help...
  115. Badmaster gain mod, hey Bob P :o)
  116. Fender Pro Jr MODS
  117. How close should tubes get to Speaker Magnets?
  118. To add a standby switch or not?
  119. modding the PV 50Watt rack amp
  120. C30 "Presence" and resonance mods R56 & R57
  121. ufd?
  122. Got any good mods for the normal channel in a Fender?
  123. Adding a PIgnose G40V standby switch
  124. Replacement Tubes for Marshall JCM2000-TSL100?
  125. Depth or Resonance mod
  126. Fender Tone stack mod
  127. How to change an amp's output impedance
  128. 5E3 Gain Question - Mod Questions
  129. Electric mistress regulation mod ?
  130. Adding an effects loop to a Classic 20
  131. JTM45 cascading gain "one-wire" mod
  132. Help eliminating pop in variable nfb switching circuit
  133. Valve Junior Triode / Pentode switch
  134. Output Transformer wiring - Secondary
  135. Bassman/Marshall switch in a Fender
  136. Ampeg rewire 7591 to accept 6L6's
  137. Champ25 Mods??
  138. Bruce /Mission Amps 5E3 Q's
  139. princton tweed tone
  140. Marshall mods documented with audio
  141. Looking for info on Blue Voodoo BV120H Mods?
  142. Sovtek Mig60 EQ mods needed
  143. 5E3x2 - EL84s in place of 6V6s?
  144. Mods performed on Peavey Valve King 112
  145. Decisions, decisions
  146. Installing a fan
  147. John Mayer/SRV [Two Rock & Fender]
  148. 5E3, want to add a reverb
  149. converting Bandmaster to Tweed
  150. Diode in series w power supply
  151. Silverface Champ mods?
  152. uncontroversial? floating of the filiment...
  153. Getting a good sound out of Marshall Amp
  154. 12ax7 tubes on a Mesa v-Twin
  155. Peavey VTM 60/120 'Dual Channel' MOD
  156. zener diode
  157. Peavey VTM 60/120 'Dual Tone Stack' MOD
  158. Tone Stack Tweaks
  159. '66 Bassman triode/pentode switch?
  160. Can u use 6L6's in place of 6V's to get more power
  161. 65 Deluxe Reverb RI mod to Mesa Mk I
  162. Speaker load for Peavey Classic 30
  163. What value NFB resistor for 4 ohm spkr load?
  164. Mercury Magnetics Mod for Epi Valve Junior?
  165. Mods on a 5150 head
  166. Celestion G12H for valve junior
  167. Couple of Questions on Peavey C30 Tweed Bassman mod
  168. Grounded caps in pin 8 of V1-V2 Fender
  169. Changing a Blackface tonestack to Bassman
  170. Vox AC-30 Mod: Tremolo Speed Pot
  171. Old Roland Jazz Chorus JC-120: Adding Stereo FX Loop
  172. Need a new cabinet for a TSL100
  173. Slowing trem speed in Ampeg Reverberocket 2
  174. Overdrive in Fenderīs reverb
  175. a little Power Brake and PI gain reduction EXP
  176. Peavey DB210 OT
  177. Power amp defeat switch?
  178. Input to V1 mods in C30
  179. valveking 112
  180. Adjusting cap value in the Classic 30 Feedback loop
  181. plexi cap tweaks...
  182. KT66 in SF Bassman?
  183. New Fender Champion 600
  184. Cathode capacitror / resistor frequency cutoff
  185. Noval / Octal Adapter
  186. Cathode Resistor values for OD channel
  187. MV mod on 74 JMP50?
  188. Taking apart/re-winding an OT
  189. FRED for '63 Vibroverb RI
  190. Pulling out the "evil" distortion circuit on a 1976 V-Ampeg
  191. Clean Channel Tone Stack
  192. Cathode Bias Amp Bypass Cap Value
  193. 5150 mods? - Enzo?
  194. SF Bassman Gain Mods
  195. Pre-amp distortion, which gives more 'grainy' sound?
  196. Help me choose a speaker for my Champ...
  197. Good Fender Twin Output Tranny Replacements?
  198. Blackfacing a silverface fender tube amp?
  199. Smokin' tubes
  200. How to add tone control to my VOM Champ?
  201. mixing channels in Fender Pro Reverb amp
  202. fender pa 100 info?
  203. Instant Chainsaw
  204. Gain Control in Amps
  205. P.I input cap in Fenders
  206. power transformer: okay to use as center tap?
  207. Bandmaster to Bassman - B+ Questions
  208. Lowering power in the 5150 II
  209. disconnecting NFB in Fender amp
  210. Basic modifications for a Princton 65?
  211. Traynor YGM-3 Add Adjustable Bias
  212. Blues Deville conversion
  213. FET as cathode follower...Sorry. Not for valve fanatics...
  214. Ampeg Gemini OT primary impedance
  215. 7199 substitution in Ampegs
  216. Replacing Transformers?
  217. Bias mod for 5150II
  218. Champclone, add a gainstage?
  219. Unknow mod in a Marshall 1959 Super Lead
  220. Idle Power For Vibrochamp
  221. Mod Sovtek/Marshall EL34 to EL84???
  222. Epiphone Galaxie 10 amp mods
  223. Dynacord Eminant II T - for guitar / bass ?
  224. Is there a way to use an 8 ohm speaker with a Bassman
  225. Carvin Legacy Pentode to Triode Mod
  226. newb push pull output transformer question
  227. Getting a cleaner, louder Blues Junior
  228. Clip from my moded 5E3
  229. verb tank connections subbed for fx loop?
  230. Preamp Suggestions For Marshall JCM 2000 Dual Super Lead
  231. marshall mg100hdfx with little bass
  232. Sprague vs. Mallory caps
  233. Champ 600 Point-to Point Rewire! The first One?
  234. AC15 Tranny Upgrade ?
  235. Fender Pro Junior, adding another speaker
  236. Fender Dual Professional reverb help
  237. Anyone doing mods on these yet?
  238. More Pwr and Headroom for SF Champ
  239. More Pwr and Headroom for SF Champ
  240. FX Loop from TUT - Kevin O'Connor
  241. Power Tubes cathode biased w/ shared vs individual R/C?
  242. Matchless DC30 EF86 Channel - too gainy
  243. Reduce Power
  244. Simple Footswitch Question for Classic 30
  245. Installing MM Irons in RI AC15CCI...
  246. pentode/triode switch, is this how it's done?
  247. anybody got a M60A schematic??
  248. Peavey Mace power amp modification
  249. What is the difference between these caps
  250. please check for me