PDA

View Full Version : Amp Technical Info

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