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 34 35 36 37 38 39 40 41 42 43 44
  1. Ready, Set, STOP! Filter caps discharged?
  2. Crazy tone knob question
  3. Question about JTM45 clone quirk
  4. Max clean headroom/12AX7?
  5. TAD 6L6WGC Max Plate Dissipation?
  6. Clear component with silver foil underneath; cap or resistor?
  7. Running 6V6's in my Bassman LTD
  8. Stupid amp question....ground switch
  9. reverb in both channels´s pic. Is that ok?
  10. How does a tube amp work?
  11. Deluxe Reverb tube options
  12. Amp Safety
  13. Lonestar Classic 1X12 Speaker Upgrade.
  14. 16 ohm in 8 ohm box? Resistor?
  15. ohms mismatch in SOLID STATE amps
  16. Victoria Victoriette - ?s about new power tubes and speakers
  17. NF loop question
  18. AA864 schematic?
  19. How do I mod 'Normal' channel into outboard style reverb controls?
  20. Traynor YCV20WR II modifications
  21. So I Droped My Boogie Recto
  22. Hiwatt related power tube question...
  23. Question of power supply
  24. transformer shunt bias for fender concert
  25. Are ceramic speakers louder than AlNiCo ones?
  26. Quick Ohm question
  27. Maybe a dumb question to you guys but I really want to know. Converting old Iron Ques
  28. 6V6's in a Simul 395
  29. minimal tube flashing - OK or not ?
  30. How to bias a Rivera Rake Reverb + tubelayout
  31. How to improving JCM900 tone? Can it be done?
  32. Bleeder resistor - why not?
  33. What schematic software do you use?
  34. Are KT88's Interchangeable with EL34's
  35. 5U4 in place of a GZ34
  36. Power transformer getting hot at low volume...
  37. Wiring cabs..
  38. Tone tubby 10's?
  39. sound but no sound
  40. best new production 12AT7?
  41. Amp Gurus - what will changing these values do?
  42. Diy Amp Kit?????
  43. Svetlana 12AX7s
  44. Variac?
  45. Biasing my Allen amp--settings?
  46. 6v6 and 8" speaker recommendations
  47. Cathode Bias Rules !
  48. Jensen speaker advise needed
  49. converting a deluxe reverb silverface 1979 to a pro reverb
  50. Electronics Parts
  51. Best way to cut speaker holes??
  52. Reverend Kingsnake 20/60 combo Schematic?
  53. Reverb that died... Any thoughts
  54. Need help with Twin Reverb
  55. Help with a Behringer fuse issue
  56. Tubes I can't ID...
  57. 6L6 GC trouble
  58. Ampeg repair reccomendation
  59. Vox AC30CC How far into mod-land?
  60. Two easy ways to beef up tone of Fender blackface amps
  61. Tubes in amps and switching them
  62. Back to the drawing board that did not work????
  63. Cathode bias and swapping power tubes
  64. Biasing-How much difference is ok from one half of power tubes to other half?
  65. trouble with a mesa quad preamp
  66. Pro Junior hum question and possible solution
  67. el34-el34l-kt77 in single ended amp
  68. Running Fender amps at 110v..problems in general?
  69. where to get led's
  70. 400 volt caps in Fender Pro-Reverb (SF blackfaced)
  71. Filter Cap Values
  72. 4ohm out, 8ohm load.
  73. Help with Tube installation
  74. So.. how does one clip thou bright cap?
  75. Simple Line Out Circuit
  76. Matchless amps - fixed or cathode bias
  77. Cool old Jensen Speaker ID?
  78. Can TAD 6V6s be used in a 500 volt amp??
  79. Guitar volume pot on guitar - half or less the volume
  80. Help! New Two Rock Reverb Hum!
  81. Wanting to build my own low-powered (1 watt?) amp head... Resources?
  82. How much is this gonna hurt?
  83. Schematic confusion
  84. Question on Shiva/Hotplate/Guitar Rig2 setup for Ed DeGenaro or others...
  85. 6L6WGB, 6L6GC, 5881 - Differences?
  86. Can I make this FX loop foot switchable?
  87. Thinking Inside The Box – Cab Dampening
  88. Looking for a SF Bay Area amp tech
  89. convert champ to run 6L6 or 2 6v6's
  90. Replacement filter cap values
  91. Tube shields - yes or no?
  92. speaker cab buzz
  93. Speaker gasket
  94. What schematic drawing do you use? & file formats?
  95. crossline MV's?
  96. 18Watt TMB Plexi Build (Complete, Pictures)
  97. Whats going on with my Deluxe Reverb?
  98. My mullard 12ax7 in on fire!!!
  99. Fender Champ speaker upgrade help...
  100. Why Don't Amp Companies Provide Parallel FX Loops? They All seem To Be Series.
  101. Why does a slightly higher cathode bypass cap value sound better?
  102. power conditioners
  103. Peavey Classic 30 combo crackling and popping
  104. Replacing The Output Tranny
  105. NOS 12ax7 recommendations - my thread lost....
  106. Vintage Reverb Part Numbers? Gibbs/Hammond?
  107. Rivera Static Stumper
  108. Adding LED to footswitch?
  109. Using Guitar/Speaker Cable
  110. 5963 tube info
  111. Putting Celestion Blues in an AC30...need help...
  112. What happens if the leads to the speaker are reversed??
  113. Suggested component suppliers?
  114. *noob alert* replacing speaker
  115. 4x12 4ohm parallel wiring diagram wanted!
  116. Question about using a Bias King
  117. twin reverb 65' reissue problems
  118. Power tube compression
  119. Tone Question..........
  120. Potential Project
  121. Checking bias in ÷13 RSA 23
  122. Taming sound - suggest me a 6L6-type tube/ valve, please
  123. Dr. Z Airbrake
  124. Pulling EL-84 tubes for half power
  125. Pop and volume drop in Vibrolux?
  126. Brown tremolo in a BF-type Bandmaster...
  127. Glockenklang Bass Amps
  128. Good online source for tools?
  129. Load Dump - Ideas?
  130. 70 watt pro reverb with KT66 and EF86 pre?
  131. Bassman Hisssssss
  132. How do I Bias my DSL 50?
  133. Capacitor Substitution?
  134. How to tell when power tubes are too hot/failing?
  135. Adding An Effects Loop - Just How Involved Is It?
  136. tone stack mod question
  137. Tech to build allen amp Detroit area
  138. Values for matched power tubes?
  139. Replacing the two prong on vintage amps?
  140. germino lead 55 blowing B+ fuse
  141. Is this even possible? Or just a stupid idea?
  142. Philips JAN 12AX7WA
  143. Can you recommend a 12AT7 for Fender Reverb Unit?
  144. Repair of small hole in speaker??
  145. Different Tube EQ Curves
  146. Class A vs. AB amp
  147. New Allen Accomplice Jr. project
  148. Installing filter caps without variac?
  149. 68' Twin Footswith Issue
  150. Quick question on biasing (need answer quick)
  151. Tube Dampers - help or hype?
  152. bench time rate?
  153. 5E3 build ??
  154. Ampeg SVT CL Question
  155. CT amp techs: HFD/NH counties?
  156. Capacitors on the grid question
  157. w/ NO GLOW on a 12AX7, Can heater power alone explain it?
  158. Smoked my amp?
  159. Bias caps in opposite direction?
  160. When AC and DC collide....
  161. copper cap for 5u4G?
  162. i had a custom 1x12 speaker cab built. now its time to mount the speaker...
  163. Standby switch?
  164. AC-30/Power Scaling
  165. One of the tubes in my matched quartet is redplating
  166. How do they grade tubes? Say if you have a #3 EL84 vs a #5 ....
  167. Crackling noise in a Ceriatone Marshall 18 w clone
  168. Hiwatt volume question, or lack of question...
  169. Speaker polarity question
  170. 2 NOS JAN GE 12AT7WC to be used, where?
  171. Anybody know a good amp tech near Birmingham?
  172. Help replacing tubes in Ampeg SVP Pro
  173. tube socket problem
  174. Tweed Deluxe - Is this normal?
  175. the Tube Store
  176. Super Lead Makes Buzzing Noises -- From Inside Head
  177. RCA Blackplate 12AX7 - '63 Bassman
  178. Quick tube question.
  179. Ampy not worky - I am sad
  180. Do EL84 tubes last as long as the larger EL34 or 6L6 types?
  181. Crossover and speaker Efficiency
  182. 6L6 to kt77: problems?
  183. Screen grid resistors; ground one end?
  184. A Fender Concert (rivera)DUAL RECTIFIED!!!
  185. Nail polish speaker repair?
  186. Scoping line power & ripple? Power conditioners?
  187. Power Tube Bias on a '79 Fender Twin Reverb, 135w, Ultra Linear
  188. What'd I do to my Fender Champ?, Help!
  189. Dust cap is protruding past the cone. Is this ok?
  190. Installed heyboer in C30 but.....
  191. Conversion project
  192. Bias Rite measurement discrepancy
  193. 7027A interchangeability ?
  194. why Princeton Reverb blackface sound so different from other blackface amps
  195. Hey tube dudes, whats up wid dis?
  196. Very strange problem with my SLO...calling all tech wizards!
  197. speaker cabinet wiring 4 ohms vs 8 ohms
  198. Speaker Resonant Frequency ?
  199. How hot are my trannies meant to get?
  200. How to test tubes?
  201. 65 Amps London
  202. Are tone controls worth it?
  203. Alu Power Resistors go short on overload..?
  204. newbie multiple-cab question
  205. Impedance mismatch-which T-fmr does it take out first? Then, are they rebuildable??
  206. Buzzsaw-ish sounding distortion
  207. Annoying rack hum that has me completely puzzled
  208. 5E3 Heater question
  209. Question about values of caps & resistors
  210. Matching speakers and ohms
  211. recto tube swap?
  212. Tube recommendation for Trace Elliot Velocette
  213. Shiva Boost Mod
  214. Amplifier Line-outs: how do they work?
  215. Mike K.- Is it safe to mix 2 brands of 6V6s in a Princeton Reverb?
  216. Brown Bandmaster Head
  217. reverb tanks
  218. Tweed Twin Volume Pot question
  219. Schematic Search: Epiphone EA26RVT "Electra"
  220. I NEED HELP!..Marshall 1959 HT fuse blown, no noise from amp.
  221. Impedence Matching Question
  222. '59 Tweed Champ Capacitors Question (speaker question as well)
  223. What is gain?
  224. Electro Harmonix EL-34 question
  225. AA864 Bassman - Pulsating Blue Glow?
  226. Power Tubes at Lower Volumes
  227. Are my speakers too bright or should I wait and see if they break in?
  228. Fender Tremelo Bypass Mod?
  229. A way to hook up 6 speakers....
  230. Please Help w/ Radio Signal Problem
  231. Explain power tube and pre amp tube Distortion?
  232. New Gibson GA-5 LP Jr. Amp Problem and Question
  233. Spitfire mods - add Standby switch & reduce bias current
  234. Effects Loop Question
  235. Shiva standby/power switch question
  236. Bias: Fixed, Cathode, Grid-Leak...What's the Tonal Diff?
  237. how do I install a PPIMV on a Marshall 1987x?
  238. Boost pedal question....
  239. What's blown speaker look like?
  240. Will different preamp tubes help this?
  241. KT77's in a Marshall SLP ?????
  242. Ceramic Caps vs. Film Caps in a Trem Circuit...
  243. how do i add effects after a tube amp before the cabnet
  244. Preamps
  245. Mesa DC-5 sounds sick (as in not good)
  246. Crackly sound on one note- Princeton
  247. Is it really that hard to build an amp?
  248. I want a cab that is switchable 4ohm to 160hm..is it possible?
  249. My "New" '79 Fender Twin Reverb and Lots of Questions
  250. What's the difference between a P15L and a P15N?