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  1. should power tubes glow orange while playing the amp?
  2. Explanation of Self-Biasing/Cathode Biasing
  3. Mesa Studio .22 Rebuild?
  4. looking for nos mullard tubes
  5. Victoriette el84s to 6L6s
  6. Carr Mercury boost switch
  7. I dropped my amp....
  8. Heat Dissipation?
  9. Amp Kit
  10. Guitar POD digital distortion
  11. Who Knows a good Amp Tech in Los Angeles?
  12. Rebiasing a Marshall JTM 60
  13. How does Bogner get 80 watts out of a SHIVA?
  14. Bad Cat Effects Loop ?
  15. Fuchs headroom.
  16. Marshall 2203 bias balance help sought
  17. Nightmare on Marshall Street
  18. Variac help
  19. KT88's?
  20. Changing EL84 amp to 6V6 or ?
  21. capacitor question
  22. Removing tolex?
  23. Voltage help
  24. Noise!?@#$&*$
  25. pentode mode / triode mode? please explain
  26. Biasing EL84 Based Amps
  27. 18 Watt clone speaker suggestion
  28. 5Y3 in Maz Jr.
  29. Alen Old Flame Problem...
  30. Changing combo> head
  31. Help! My amp is sick..
  32. rectifier tube swap question
  33. What are some ways to tell if you have a Telefunken ECC83?
  34. Schematic for Duncan 60 watt
  35. problem with SOLO function on Mesa RectoVerb
  36. Bad Cat Hot Cat speaker replacement?
  37. Tube problem or not?? my amp is more broken.
  38. New (but used) amp problem, can I really have a bunch of bad tubes or is it the amp?
  39. Bassman AA864 vs. AB165 gain stage question
  40. Broken Amp (Busted Fuse?)
  41. Combo amp resonance noise
  42. Different Sovtek 6L6's
  43. making a cheap amp better
  44. Identification of a Potentiometer
  45. Proper way to retrofit 3-prong to BF Bandmaster.
  46. Amp Biasing: How to support the chassis?
  47. Blowing fuses
  48. Just picked up 10 nos mesa 12ax7's from the 80's
  49. 6L6 Recomendations
  50. Princeton Reverb Toubleshooting Help
  51. SLO 100 V1 tube
  52. Amp running without cab...
  53. Can I do this?
  54. For those who dig this stuff: my YGM-3 chassis, before & after
  55. Power transformer is Hot!
  56. Rectifiers question
  57. Capacitor type question - help please
  58. What Multimeter?
  59. Using 6V6's in place of 6L6's
  60. Help with Mesa F-30
  61. Marshall 2204 question?
  62. 5U4 question...
  63. getting new speakers. ohm question
  64. Traynor EU mods?
  65. Resistor question
  66. Power Tube Dampeners?
  67. Fender Bandmaster
  68. 1978 Princeton Reverb.
  69. Treble Trouble
  70. new power tubes/same ol' farting amp
  71. Can this harm an amp? (speaker-related)
  72. Pearl Tube Coolers
  73. Safety when working on an amp?
  74. HELP with tube change!
  75. How can I get power sag without using a tube rectifier?
  76. Loss of volume
  77. Ac Dc
  78. EL-84--Sovtek vs. J.J ??
  79. I have a good FX loop but Can't I skip it?
  80. How to...
  81. John Phillips, other amp experts... URGENT!!!!
  82. Blues Jr vs Pro Jr
  83. Bias drift or runaway Help needed!
  84. Effects Loop Problem
  85. fender bronco
  86. using US 9V power transformer in UK
  87. Problem with Aluminum chassis
  88. Need Help - Need to Revese the Phase in Effects Loop
  89. Amp Protection question
  90. HELP!!! - AC30RI Output Tube Socket Replacement Question
  91. GT Soul-O 45: What makes is "pedal friendly"?
  92. 69 Deluxe Reverb question
  93. custom poweramp - would this work?
  94. Where to buy the best/cheapest variac on the net?
  95. running without load?? help
  96. Dancing impedance reading from cab? Help needed!
  97. Phase Inverter
  98. What makes an amp sing?
  99. Diode In Bias Supply
  100. 1U blank rack chassis
  101. new custom poweramp idea!
  102. adjustable bias pot???
  103. Deluxe Mod?
  104. 6CA7 vs. el34
  105. TUT Vol. 3
  106. Does impedance always have to match?
  107. Ballance and bias for each output tube
  108. Amp Speaker Outputs: Which to use? Why?
  109. Pre-Amp tube suggestions?
  110. Feedback destroyers?
  111. Need Speaker Cable Suggestions...
  112. Speaker choice for 64 Bassman head combo cab?
  113. bias diode
  114. Would a bad tub effect the LED on the footswitch of my Two Rock?
  115. Where is the best place to buy tubes?
  116. Attenuators
  117. Dropped my power cord in calcium chloride, should I toss it?
  118. 1972 Ampeg Svt Head
  119. Bias setting question
  120. Does lower wattage speaker = faster breakup
  121. Mesa Studio .22 Tech help needed...
  122. DIY Attenuator
  123. motorboating JCM800...
  124. Preamp tube layout for VHT 50 CL?
  125. Amp gurus! Intermittent crackling question..
  126. Lower mains voltage: What to do??
  127. "Dummy Load" Question???
  128. anybody use 2 1x12 cabs in series/parallel?
  129. working safely on an amp... discharging caps and such
  130. GIve me your input on different el34's
  131. Help ID which amps are Class A
  132. Tubes for Mesa's
  133. Impact of a 6.6k primary
  134. Technical tube question...
  135. Sound "disappeared"
  136. Standby Switch Usage
  137. Mesa Lonestar
  138. 5U4GB rectifier tube
  139. Speaker Area and Volume
  140. Speaker cabinet question
  141. Tube duties in a Maverick
  142. 3 prong install, problem now.... please help if possible.
  143. tremoverb power reduction question..
  144. My Amp plays all by itself! No kidding
  145. Feedback/oscillation problem... where do I look?
  146. Question for cabinet/amp builders
  147. Preamp tube with lowest mids-to-gain ratio
  148. Amp sound loss
  149. Sad about my Carman Ghia
  150. transformer for a 12AX7+50L6+35Z5 amp?
  151. .015uf good caps @least600V -where?
  152. EV Speakers
  153. I see dead people - Working on My Amp
  154. Torres overhaul kits, any good?
  155. fender tube replacements
  156. Bad Phase Inverter
  157. Balanced PI tube
  158. Location of Bias Pot on Fender Super Reverb?
  159. Koch Reverb Puzzle
  160. Canadian parts sources for DIY amp/cab builders?
  161. 66 Bandmaster Ohms?
  162. Train Wreck Mod?? Or other master volume mods??
  163. Hoffman Board Kit
  164. Help me bias my Two Rock Ruby...
  165. Before and After pics of my Fender amp - shellac'n/relic'n.
  166. EVs- much louder than the average speaker?
  167. Ei EL84s in a Matchless???
  168. Shallow Vibrato on '70 SFDR
  169. tropical fish caps
  170. Fargen Mini Plex + Mighty Plex gain & tone mods
  171. 6V6s in a Twin Reverb/Dual Showman ????
  172. Any one done the Tim C vibro-king mod?..need help
  173. Problems with my cab. Help please!
  174. Ohm help please
  175. Can you tell me about these tubes?
  176. Last Vibro King question..I promise
  177. how to tell when power tubes need replacing?
  178. anybody ever convert a BF/SF twin to tweed specs?
  179. PPIMV's and effects loops...
  180. no output from power amp?
  181. rectifier questions
  182. Re-biasing my Cornford Amp
  183. pot values
  184. Replacing the Vibrato Bug in a 64 Deluxe??
  185. SS rectifier & 6L6's in a 64 Deluxe
  186. Are there "bias test point" kits?
  187. Re-wiring old PA amps for guitar
  188. loud hum in amp--like ground hum(?)
  189. safest place to buy NOS or USED TUBES?
  190. Blues..........
  191. problem w/ 67' Deluxe Reverb
  192. Class A Deluxe ?
  193. Understanding EL84 "current" ratings?
  194. Fender blues Jr
  195. Setting the bias on an Alessandro Working Dog amp?
  196. Two filter caps 500% off spec!! WTF?
  197. Will this hurt my amp?
  198. Can I use a 5U4GB in a tweed Bassman
  199. Recap a BF Super Reverb?
  200. More speakers, less speakers
  201. Is switching between 6L6 and EL34 just matter of re-biasing?
  202. Stop, hey, what's that (60 Hz) sound?
  203. Head Shell vendors?
  204. AB868 - Q re. cap on V3
  205. Tim C Vibroking Mod...Review
  206. Speaker Power Handling Question
  207. vintage tube experts,i have a question?
  208. Hot Deluxe Reverb
  209. Mismatched tubes=bad, right.....?
  210. The Amp Bias spreadsheet and more...
  211. Custom Chassis???
  212. speaker wattage & amp's power
  213. What tubes in my AC30?
  214. converting a guitar amp to a Hifi amp...
  215. 6C10 tubes for Fender Super Champ
  216. Biasing my Alessandro Working Dog w/ Weber Bias Rite
  217. Where to find EF86 ultra-linear schematics for inspiration?
  218. 5u4gb for 5u4g?
  219. Multiple amps again.
  220. Dating an SF Bassman head
  221. Fender Bassman RI Tube Question
  222. Help needed with a Victoria Champ Problem
  223. Great site for Mullard and Telefunken`s cheap
  224. Questions on using a speaker load to bias an amp...
  225. Bad readings using Weber bias rite kit. Help!
  226. Standby Switch
  227. ptp board or Mercury Magnetics OT for 59 Bassman RI
  228. marshall jcm 900 cab w/ 1972 50w head?
  229. Silvertone repairman?
  230. What tubes have the sickest gain?
  231. vox ac30 noise issue problems
  232. Hoffman 5F6A board for 59 Bassman RI
  233. Is there any way to compensate for the "drawbacks" of 6v6s?
  234. anybody have a schematic for a fender super 60
  235. GT "substitiube" rectifiers
  236. how much do you need to know to build an amp?
  237. Which amps can you bridge channels on?
  238. What Preamp Tubes to use
  239. HELP!!! My amp is messed up!!!
  240. 12AT7 vs 5751
  241. Just blew my Polytone...
  242. Power tubes don't light up, but preamp tubes DO!!
  243. Impedance matching
  244. Just Got My Weber Bias Rite ...
  245. Tonal effects of OT upgrade?
  246. 5AR4 in a tweed deluxe?
  247. No Standby and Tube Longevity
  248. Odd amp noise question
  249. Replacing Speaker Wire
  250. good master volume circuit for a Vibro-Champ?