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  1. Recommend a Digital Meter for Bias
  2. How much gain from a Marshall plexi preamp?
  3. Weak Tremolo SF Vibrolux Reverb
  4. What Are The Tube Manufacturer Codes?
  5. What controls the voltage here... (pic inside)
  6. Another odd Voltage reading...
  7. Advice on how to get rid of fizz
  8. Looking for Bassman schematic/chasis layout
  9. Where can I get a 240 volt Soldano power transformer?
  10. Power tube matching
  11. Too much power filtering....
  12. static coming from my deluxe reverb amp
  13. Marshall Footswitch Problems
  14. Advice needed: '63 Vibroverb reissue
  15. Fender Twin Reverb extension speaker question
  16. Can you drive a reverb circuit with 1/2 a tube?
  17. Marshall 1987x woes.. STILL!
  18. Reducing trainwreck clone gain?
  19. New Tubes for a Mesa Mark III... opinions?
  20. Yikes! Can this be good for you?
  21. Fender Feedback Resistor Question.
  22. When is it OK to sub power tube types?
  23. Vishay Dale RN65 resistor max voltage @ 350v? Any Danger to use in plate loads?
  24. lower wattage, simplified Super Reverb: DR's power section?
  25. 6v6 touching speaker magnet?
  26. How do I raise the overal B+ voltage in a Fender?
  27. Can a "high" gain TR Emerald pro be modded to a "low" gain model?
  28. Tube ID Clarification
  29. Anyone here heard of "too much B+ voltage to use a SS rectifier"?
  30. power scaling for Laney vc15?
  31. Ampeg Gemini II Bias Question
  32. champ style build problem
  33. Plexi bright cap
  34. Moving a handle on a speaker cabinet?
  35. Tube Question
  36. What is the best filter cap for a recap on a Hiwatt DR103 ?
  37. DRRI Retrofit
  38. Never Trust a Cheap Multimeter
  39. rectifer question , after installing allen transformer
  40. Caps need replacing? (photo)
  41. Latest 5E8-A build and a cool simple mod for it
  42. Budda+New Tubes =Heat Help Please
  43. recycle old tubes?
  44. Looking for amp tech NW Indiana/Chicago
  45. Problem with my Avatar 4x12 cabinet
  46. 'Cap Job' Help
  47. JBL D120F - How to identify recones?
  48. 65 BF Bandmaster Ohm? Speakers?
  49. Caps Questions?
  50. 250-500pf coupling caps: Best sounding
  51. any recommended channel switchers for CAE 3+ preamp?
  52. Recap Time For Tweed Champ?
  53. TAD 6L6: Difference between big and short bottles?
  54. Best current production tubes?
  55. Please explain about transformer size
  56. Does Ruby make the best sounding reverb tanks?
  57. 2 Practically Identical Supers... one sounds different.
  58. think i blew my output transformer
  59. Best Multi Cap Can for BFPR ?
  60. clean chording at low volume and my Chieftain is making crackly sounds....
  61. Late 70's Vibrolux Bias Resistor Value
  62. ID a Vox re-issue please
  63. Cermet bias pot
  64. Amp Tech in Atlanta
  65. Why is it?
  66. Anyone recommend a good (But cheap) oscilloscope for internal amp readings?
  67. Marshall ???
  68. Combo amp suitable for harp player?
  69. Problem w/ my JMP, microphonic power tubes?
  70. Tube driven effects loop???????
  71. What do you make of this?
  72. Caps in trem section of fender...
  73. What tubes can I run in a YSR-1?
  74. Proper AC signal strength on input.
  75. How do you know when you're tubes need replacing?
  76. Oscope w/400VDC max input: Enough?
  77. Can Someone Critique a Layout (Tweed Pro) For Me?
  78. power tubes
  79. Spec'ing a Power Supply
  80. Is this box fan mod o.k?
  81. Choke tranny has slight vibration? Huh?
  82. replacement screw size for speaker
  83. Need info on running my 63 AC-30 at 240v
  84. Marshall...noise from input tube
  85. need plastic or insulated screw driver
  86. Headroom
  87. Biasing an amp w/o a "bias meter"
  88. Vibrolux Filter Caps
  89. SFDR: Signal clips only in the power tubes.
  90. Where to get this cap?
  91. Micro cube issues
  92. Another "How to bias" thread! This time the Bassman LTD
  93. Cathode Resistors for 6L6 Tweed Deluxe
  94. NFB Resistor Value
  95. Weber Natalie Amp Head?
  96. Amp Sounds Like Broken Glass
  97. Vox AC30 Top Boost Mod
  98. Changing to EL34s in a JCM900 4100?
  99. audio taper vs. linear taper volume pot Fender amps?
  100. Tweed Champ Rectifier
  101. Reverb Issue on Custom Vibrolux.....
  102. What's your favorite circuit type?
  103. Amp tech in kansas city, mo?
  104. Can I get more range of bias in a bassman head?
  105. Okay, fine...So What *Is* Your Favorite Circuit Type?
  106. EL-84's in a Super Sonic?
  107. Weird signal loss through pedal board
  108. Cap can Mallory type FP???
  109. Mesa Express 5:50 began smoking and died...
  110. Heritage Colonial EL-34?
  111. What's your favorite Transformer?
  112. Is there a technical explanation for this? Vox CC and Fulltone 69
  113. Kt 88?
  114. What causes 'radio thru amp' effect?
  115. Blew up my Marshall today, tubes? Attenuator?
  116. Bias Question
  117. Need unique PT
  118. 100 Watt Amp Bias:Way Low
  119. Question on biasing (scoping for X-over distortion)
  120. Fender Limited Edition Twin Reverb
  121. Double checking speaker impedance
  122. Which bias Meter ?? bias Probe, biasrite, biasking
  123. 6V6G coke bottle usable in a BF Vibrochamp?
  124. Marshall JMP impedance selector - 6550's
  125. Tweed Bandmaster OT, Bias, Tubes?
  126. Princeton Reverb Problem
  127. 71 SF vibrolux is smoking (literally!)
  128. Cabinet buzz Pro Reverb
  129. G12T-75: Chinese or British?
  130. Anybody mod Rivera's?
  131. John Phillips (or anyone): What preamp tubes in your T-Verb?
  132. When is biasing needed?
  133. What is the best and safest method to bias an amp?
  134. More newbie bias questions....
  135. tube question for modded 5E3
  136. Help with a Peavey C30 will you???
  137. Troubleshooting a rattling 1X12 combo
  138. Marshall AVT150 problem
  139. Fender Pro Speaker Question?
  140. Amp has ring modulation effect
  141. Power Xformer Vintage Fender Question
  142. HELP! MM Tranny install (choke & OT) and now theres horrible distortion!
  143. Photos of transformer and pickup dissection?
  144. Wow! 5E3 with fatstack tranny!
  145. Upping An Amp's Power From 5W To 15W
  146. Reducing Hissssssss
  147. from Celestion: British or Chinese?
  148. 1.5k resistor on power tubes... 1/2 watt ok?
  149. New Genalex KT66 Valves
  150. mic pre technical question
  151. Bad Cat bias
  152. English Voltage to US Voltage
  153. Stupid question on changing amp channel - Rivera
  154. removing the bright cap on marshall volume pot
  155. Mallory VS Orange Drops whats the difference?
  156. What should I do with this vintage Fender BandMaster???
  157. DIY BlackFace Hi Power Twin?
  158. Q: Reverb tanks, RCA ins and outs... crazy idea.
  159. bias question (probably naive)
  160. Is a "reconed" greenback really something to worry about?
  161. Tone Stack Lift Question
  162. Cab failing pleaes help!
  163. Jewel light for my SF Fender?
  164. Trannie Config
  165. 5 E 3 for a Gibson 335 -- what mods ?
  166. Variac Volume Control ?
  167. Where to get amp knobs?
  168. Channel Mixing Resistor Values
  169. how do i rewire a badcat from 110v to 240v ?
  170. 5E3 line out mod
  171. Bogner XTC 101b noise issue
  172. Any Hot Cat players find it too gainy? May have a mod to help...
  173. KT66s in a 1987 plexi anyone?
  174. MKIII Woes
  175. Fender Clone volume pot value
  176. Multimeter quality
  177. old preamp tube #$'s?
  178. Vox AC15 Conversion?
  179. DR. Z Airbrake owners unite!
  180. Super-sonic (head) tube function/location?
  181. Fender 57 Deluxe Class question
  182. Honky mids, bad preamp tube?
  183. Designing for Impedance in a Gain Stage
  184. Divided By 13 Bias Pot
  185. Just bought some re-cone Greenbacks...can someone tell me about the cones?
  186. Turning off Amp it......
  187. Mercury Upgrades
  188. super reverb
  189. Software Oscope
  190. Tube Tester Help in Dallas
  191. 5e3 6v6 to el84???
  192. One power tube glowing red, please help!
  193. KT88 SE Amp Question
  194. Want to build my first amp - advice for a newbie!
  195. Need some "cage nuts" - clip in nuts that hold a chassis in a head shell
  196. What mods have you done to your 18w amps??
  197. 5ar4 rectifier tube, replaced with a 5u4gb FRY a PT
  198. Looking for an AA864 Fiberboard
  199. Dumb question...please help
  200. kt66 vs 6l6
  201. Cathode vs. Adjustable Fixed Bias
  202. Output Watts?
  203. Bias after replacing 5AR4?
  204. Buzz In Audio Signal
  205. Traynor YBA-1A mkii Output Transformer Suggestions
  206. Super-sonic schematic?
  207. What's a fair price for a cap job...
  208. Bassman mod question for a newby -
  209. So I got this new multimeter, help?
  210. What's usually involved in a 3-prong upgrade?
  211. I need a Boogie DC5 modded in London uk
  212. Vox AC15CC1 static?
  213. which tube does what?
  214. can a deluxe reverb use a 2x10 speaker baffel?
  215. I Need A Schematic
  216. Rant Mod for Valve Jr
  217. Supersonic biasing info?
  218. Amp/Cab Ohms Question
  219. What is the effect of changing these resistors...
  220. What does an authentic 60' Jensen C10Q Speaker look like?
  221. Volume Level Sensitivity
  222. Safety question
  223. all of a sudden volume jump - help?
  224. Ohmage Question number 3307, Hot Plate +?
  225. Wiring a variable impedance switch?
  226. How to bias a TSL-100 with multimeter?
  227. Old greenback pics...someone help identify them please.
  228. OT Primary Impedance Ouestion
  229. Grillcloth for SF > BF conversion?
  230. What Do Blown (Or Failing) Speakers Sound Like?
  231. Whopping Ampeg V2 just in...cap replacement?
  232. Super Sonic "Cold as Ice" no more!
  233. 16 ohm Speakers Amp set to 4 Ohms?
  234. Where to find schematics for Reissue Ampeg J-12R and J-12T ?
  235. Celestion G12-65 repair question:
  236. Step down transformer quick!!!
  237. Transformer replacement and tone
  238. Tube Gurus...is the getter in this Ratheon 12AX7 bad?
  239. Standby switch for newer Fender Blues Deluxe
  240. Adding line out to Hiwatt clone.....
  241. "Ticking" vibrato problem
  242. Why are my Filaments not getting to 6.3 volts?
  243. Master Volumes and their variations...
  244. tips on how to retighten tube sockets ?
  245. quality of resistors question
  246. Vox AC15cc Mods?
  247. Can blown speakers be visually un-damaged?
  248. What EL-34's for my 1986 clone?
  249. Diagnose An AC30 Problem?
  250. Marshall 3203 Artist