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  1. Allen amp-loud hum
  2. 6l6 tubes, whats the difference?
  3. Fender '57 Twin-Amp
  4. 6L6 to el-34 conversion?
  5. V1, V2, V3
  6. Marshall JMP 79' Master Lead
  7. Fixed vs. Cathode bias
  8. Jammed Ohm Selector . . . Help please
  9. you think marshall caps are big???/
  10. power transformer output voltage
  11. Have you ever used a vintage.....
  12. Vibro Champ Mods?
  13. Class A amp questions
  14. Development of sound waves
  15. technical questions - tube vs. solid state, etc
  16. pulling power tubes to lower headroom
  17. Best KT88?
  18. Can I run a 16 ohm and a 4 ohm cab together?
  19. Blowing fuses on startup?
  20. Power Tubes for JCM 800
  21. What is "JAN" in tube names?
  22. What's a "getter"?
  23. Cripes! .. The ol' blackfacing a silverface question again.
  24. Telefunken 12AX7....without diamond
  25. Is This Problem With My Amp?
  26. Tube look like stop lights: HELP
  27. new tubes[smell?] questions/help
  28. tubes or something ringing on the Metro!
  29. LEDs for amp footswitch
  30. Marshall 2061x Preamp Questions...V1 vs V2
  31. SFDR Amp Hum
  32. How long can I expect the el84 powertubes to last?
  33. Silverface Vibro Champ - Sounds like Do Do!
  34. Can you use 7189 tubes in place of EL84's all the time?
  35. two rock phasing??
  36. Tube ID help Please
  37. Tube Biasing...HELP!?
  38. Plexi Reissue Bias Problem
  39. Champ problems
  40. Silver solder: Tone difference???
  41. amp messed up?
  42. Is the Amp Kit market oversaturated?
  43. Need amp tech in NYC
  44. Pulling power tubes on a Twin Reverb
  45. Bad solder joint noise? Or to much bass
  46. Princeton questions and NorCal amp tech
  47. Bassman/Bandmaster speaker impedence
  48. Svetlana 6L6GC vs. GT6L6GE
  49. Low plate voltage and BIAS
  50. '75 JMP 50 questions
  51. Traynor reverb question
  52. Marshall Cabinet Corner Question
  53. Marshall TSL 122 Combo - Need Help Please!
  54. Unsteady bias in Rivera . . .
  55. How Do Power Transformers Affect The Sound Of An Amp?
  56. '71 Marshall 50W HT fuse question?
  57. 12AU7 in V1?
  58. Pilot light dims.
  59. 6L6 makes crackling noise
  60. Two Speakers on an old Fender Princeton Reverb? (ohm question)
  61. What would cause low plate voltage?
  62. Help determining what to do
  63. Fender BF trem mod in Guitar Player
  64. Cabinet wiring ? - mono AND stereo 2X12?
  65. EL 34 identification
  66. amplifier input impedance
  67. trouble with a mint brown super
  68. Need a little help with a 61 Deluxe -
  69. Anyway to reduce amp compression?
  70. VHT speakers and ohm question....
  71. HT fuse problem
  72. Anyone who understands about MESA MARK III, please help me please!!!
  73. soldano astorverb problem
  74. Ohm Problem
  75. Global Negative Feeback
  76. Matchless DC30 half power switch question
  77. Super reverb wiring question
  78. Superlead help
  79. Can power tubes make Hiss?
  80. 1974 mod #1987 50 watt lead
  81. speaker out of phase ?'s
  82. Basic tube/valve amp questions...
  83. replace power switch on 2204.
  84. cleaning pots
  85. AB763 Bandmaster Intrigue
  86. come on then.... what's cascading?
  87. ac30 problems :(
  88. amp input sensitivity
  89. do I really need these things?
  90. Old Park Valve amps
  91. how bad is this...?
  92. Raezer style cabs for blues/rock?
  93. my marshall has way to much treble.
  94. What is a "slave out"??
  95. My Marshall is now a Theremin..parascitic oscillation
  96. You've ever opened/dissembled a pot?
  97. basic power supply question
  98. Looking for some silver mica caps........
  99. Mb Mk Iv Problem
  100. Best clean headroom: 12AT7 or 5751?
  101. Mesa Triple Rect problems
  102. ONLY 12au7 EH's , no other 12au7's, work in Rickenbacker M-11
  103. How do I tell if my caps are bad?
  104. static like noise in a Deluxe
  105. metal base el34's mullard
  106. Ghia comparisons
  107. Anybody know where to get some new caps for my laney?
  108. Marshall Superlead Resto
  109. Basic Guitar Amp Electronics
  110. tube questions....
  111. Are these Mullards?
  112. Are these 6V6s any good . . .?
  113. The Other Marshall Tranny Company
  114. Location of tone stack in signal chain
  115. Biasing 1969 Metal Panel 50 watt
  116. Please Help--Replacing Cap Can (RIC M-11)
  117. Converting Traynor YCV40 to YCV50BLUE?
  118. Marshall techs...need diagnosis after amp accident please
  119. Basic troubleshooting question: metallic hiss/hum
  120. Pre-amp tube recommendations for 18 Watter?
  121. Difference between tweed 5C5 and 5E5A?
  122. impedence of a blackface twin reverb
  123. Buzzing
  124. opinions, do tube shields really matter?
  125. traynor ycv20wr eating tubes?
  126. white noise when switched from standby
  127. SLO-100 Bias Adjustment
  128. Yet more thoughts on coupling caps
  129. Wood for building a 2x12 cab?
  130. Need NYC amp tech recommendation
  131. VHT PB 45 tube question.
  132. amp powerdown
  133. Odd Ball Happenings from Miswired Mains
  134. huge volume decrease with JCM 800
  135. Where to get Power Transformer for Red Knob Twin?
  136. Another D-style amp question (sorry)
  137. Take a look at a schematic for me, please.
  138. Bassman speaker bypass?
  139. Excessive filament glow on GT 7025 tubes
  140. Mesa 12AX7'S vs GT12AX7M's
  141. 2 amps with an A/B switch.
  142. Please help: Rivera, Soldano out of phase?
  143. Mismatched impendance between cabs
  144. 6V6s in Fender Pro Junior?
  145. bias dilemma
  146. Help with a bogen schematic
  147. Magical 6
  148. New Tung Sol 5881?
  149. Attenuator for Orange AD30 TC
  150. Bias help!
  151. Using a greenback 2x12
  152. what's the best 15" speaker?
  153. "Absolute Max" Plate Dissipation?
  154. Amp Building or FX Pedal Intern Opportunity Wanted
  155. preamp tube questions.....
  156. paging John Phillips
  157. Changing Tubes and Speaker in a Deluxe Reverb
  158. Bandmaster Reverb output impedance ???
  159. Amp Problems (Funny Noises)
  160. Pro Reverb / Super Reverb differences?
  161. How much tone comes from the cab?
  162. Help please...possible earthing issue
  163. Do any of these tubes have any use/application?
  164. Transformer Heat?
  165. Causes for a speaker to go open circuit??
  166. newb question - cap voltage rating?
  167. I want to replace my screen resistor in my xxx can anyone tell me about this?
  168. Budda Dual Stage 30
  169. phonograph tube amp help
  170. Tube Spring Reverb - Good resources
  171. Holland amp schematic and help needed
  172. 5881 tubes
  173. How to Spec a Replacement PT?
  174. B&K 600 Dyna-quik Tube Tester?
  175. Fix for a fuzzy sounding amp?
  176. I'm blackfacing a SF Pro Reverb...
  177. AB763 Board noise problem
  178. Amp vibration noise?
  179. *umble Chassis Pics...
  180. Replacing volume pots on a Fender
  181. Why the "*" ?
  182. Tweed 5C3...6SC7's? Metal or glass?
  183. Tubes question in my VHT Pitbull........
  184. What should I check before powering up my amp?
  185. Some Advise, Please...
  186. Anybody know of any good mods for a laney aor 100?
  187. a good attenuator?
  188. Any experience w/ Eminence 15" Big Ben?
  189. Cascading Marshalls inputs ??
  190. can you I.D these tubes?
  191. "Ghost" notes in my Silverface Twin..??..
  192. Unusual schematics
  193. Would a gaphic EQ work as a simple clean preamp into a power amp?
  194. need 100VAC, 1000pf capacitor
  195. Best New Production 12AX7?
  196. Stupid question: "What is Gain?"
  197. The Humble Pig Project - some photos
  198. Fargen Bright Cap
  199. biasing 6v6 with bias rite question
  200. howling tube amp??
  201. Mesa tube question: Can I use tubes other than Mesa brand? I was told no by saleman.
  202. 12ax7 question
  203. Hiwatt DR504 - Effect of lower gain preamp tubes?
  204. Fender Champ 12 buggy.
  205. Voltage Conversion 110 to 220
  206. Can smoneone guide me how to remove the treble cap on a DRRI?
  207. Tricky impedance question
  208. How difficult is amp maintenance/modification?
  209. Zinky Blue Velvet Mods?
  210. noice in amp...
  211. Cause of Ghost Notes?
  212. My Amp Tech
  213. quality mods for a 59 reissue fender bassman amp
  214. Humming Twin Reverb - Help!
  215. Blown PT on Silvertone 1482
  216. Marshall Trem Reverb 20
  217. How many ohm's?
  218. What kind of wire to hook up my EV?
  219. Soldano Avenger problem
  220. Fender '65 Twin Reverb Reissue - Noise Issues
  221. Blown fuse?
  222. What happens IF!!...??
  223. EL34 Tube Question-Need Experienced Feedback
  224. Switching cabinet Ohmage via resistors
  225. Trimmer capacitors - anyone use them?
  226. Question For The Ever Helpful John Phillips
  227. changing 6550's to EL34's in a YBA-1
  228. What does a Phase Splitter do?
  229. 4,8,16 ohm speakers?
  230. Need PIC of Cap Can installed with clamp, please
  231. Multimeter reccomendation?
  232. 12AX7 ID Site?
  233. How can I tell if my battery is OK?
  234. Question on 70's Fender Pro Reverb
  235. marshall knobs
  236. Found old tubes
  237. Books on reading amp schematics?
  238. Combo to Head / wiring
  239. Blown Speaker
  240. Power light on JCM800 2204 50W MV
  241. Desoldering
  242. Alessandro vs. Weber...
  243. Naylor Electraverb schematic?
  244. Amp issue (Tube gurus, help!)
  245. reverb tube
  246. Can someone double check my wireing?
  247. Plate voltage? Low plate voltage?
  248. Help! Tube Amp cuts out after 2.5 hours
  249. Is speaker blown if it is "scratchy" when you push on cone?
  250. Accutronics Reverb Pan Question