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  1. 6L6--- which brand best keeps the fenders sound
  2. More Bass/Less Mid mod for a Sovtek Mig 50h
  3. EL84 tubes
  4. Source for 9-pin (preamp) tube bases???
  5. Just used a 16 years old new tubes.
  6. Shuguang 6L6WGC - any info
  7. hardware for blackface fender fix
  8. Model t tubes
  9. Anybody looked at tube perveance values?
  10. Tube Storage
  11. When did the American Tung Sol factory cease production?
  12. New production 12AX7
  13. CE Distribution - policy change coming for defective tubes
  14. Sinorussotubeaphobia
  15. Triplett 3444 testing of a 12AX7
  16. Variations in Filament intensity
  17. Used power tubes
  18. New production Mullard El34's
  19. Origin of the 6L6GC?
  20. Sovtek 6CA7 fat bottle 90s era
  21. ID tubes from 1968 Traynor YVM-1
  22. Thoughts on Tung Sol reissue 12AX7 and reliability?
  23. Plate voltage of NOS RCA and NOS Tung Sol??
  24. Old Sovtek EL34G, similar tube?
  25. Current production Sovtek EL84M
  26. 12AX7 tube for overdriven analog organ
  27. ECC83 clipping
  28. Can KT88's be used in my amp?
  29. JJ 6L6GCs... WTF?
  30. Please suggest KT88 tubes
  31. wurlitzer branded general electric grey plate 12ax7
  32. Power Tube Swap Extravaganza!
  33. need a source for 6KG6A/ EL509 tubes
  34. how long do these last?
  35. What is this tube ID?
  36. Avo valve tester questions.
  37. winged C vs Svetlana el34s?
  38. Mercury Rectifier Tubes
  39. boutique/back yard tube maker in Japan [Youtube]
  40. cathode by-pass in push pull six tube hifi amp
  41. Nuvistors - what do you think?
  42. Bias question - 6L6
  43. Adhesive for Repairing 6V6GT Base?
  44. 5763 Tetrode - what do you think?
  45. NOS Metal Can 6V6 Tube Quesiton
  46. Franks Electron Tube Data Sheets site down?
  47. Tube amps
  48. rf/audio screen voltage ratings
  49. Help with value vintage Line Transformer Altec 2282
  50. Suggest preamp tube (12AX7)
  51. Anyone used Sovtek 12ax7wa - Had one crack
  52. ID this Tube?
  53. what power amp is this and who made it ????need schmatic
  54. Recommendations for EL34 for 520V on the plate
  55. Anyone else having issues with Winged C EL34's?
  56. JJ 5Y3?
  57. Retrovalves
  58. Question For Other NOS Tube Junkies
  59. mismatched 6v6 pairs; cathode bias
  60. Article - Return of the Vacuum Tube
  61. Tube-Based Boiler Controller / Thermostat?
  62. Any experience with this tube vendor?
  63. Blackface Deluxe Reverb No bias current reading
  64. Fender Bassman 10 Bias adjust conversion
  65. Proper Tube Removal Process?
  66. dead output transformer
  67. Shuguang data sheets
  68. Ordered JJ's for my Bugera 333XL
  69. The Tube Shop - anyone shopped there?
  70. Which 12AX7 for my 18 watt plexi build ?
  71. 12AH7A info
  72. Changing tubes in a Crate vc5310
  73. Winged C 6L6GC + TubeDepot
  74. WANTED: 2 6N6 "metal can" vacuum tubes
  75. 50Watt Vintage tube PA Tubes?
  76. Northern Electric Tubes
  77. Fooprints (symbols) for tubes for Orcad PCB designer
  78. Sovtek 12AX7s
  79. Octal tubes and microphonics?
  80. Tube amplifier for headphones
  81. Any Opinions on Octal Preamp Tubes?
  82. Cryo treatment of metal things with music coming out of them
  83. JJ EL84 failure
  84. Anybody Know About Ballast Tubes?
  85. 21.5 watts from a Pair of EL84's?
  86. Strange 5AR4 "Problem"
  87. Is cathode bias the same thing as "self" bias?
  88. Rectifier tube question
  89. Who made the Groove Tube KT-66HP?
  90. Bugera 333XL 212 Combo Tube Questions
  91. Senior TC130 tube tester chart
  92. Difference between 5AR$ and 5Y3 as Tweed Deluxe rectifier
  93. What to do with one of a pair of matched tubes
  94. Most reliable current production 5AR4/GZ34?
  95. Please recommend me tubes for my Bassman
  96. Peavey classic 30
  97. EF86 too weak. is it true what they say?
  98. JJ 6L6GC
  99. Will changing from a 5U4GB to ? lower my DC voltages?
  100. New 6Sl7
  101. Best New Issue EL34
  102. Upgrading Epiphone Valve Junior to a 7591 SE design?
  103. 6Y6s.....any good for audio?
  104. My Handsome Devil head
  105. 6AR6WA v. 6L6GC?
  106. EF86-type Sonic Differences.....
  107. New Issue 6L6
  108. 12AX7 HUM
  109. 6U8/ECF82 shielding question
  110. 7581a in Fender amps?
  111. 12AY7 as a DC-coupled cathode follower
  112. Vox AC 100 Mk2
  113. Tung-Sol 6L6STR fragile bottle top
  114. ECF80 or ECF82 for AF?
  115. SED Winged C Prices Way Up
  116. Tube Lineage?
  117. 12ax7LP substitute
  118. Chinese tubes
  119. KT66 Pin 1 variations - which one is accurate?
  120. Tung-Sol RI 6V6 - opinions/experience?
  121. Presently manufactured power tubes
  122. Very elementary question/Sovtek etc.
  123. 807s?
  124. Miniwatt, yes or no?
  125. RCA - customers advice wanted
  126. Chinese and Russian tubes
  127. SS Tube replacements...
  128. Telefunken in Fender amps?
  129. 7868-EH tubes any good? (New Electro Harmonix)
  130. What are the best 6550/KT88 tubes for 2011?
  131. Gold Lions (English)____Anyone familiar?
  132. Bench-testing vintage power tubes?
  133. 6v6 and 6v6GT
  134. cleaning old dirty tubes?
  135. Tube labeling: Paint? Etched?
  136. help plz: identifying old tubes
  137. Baldwin 12AX7 Made in USA AMY 31 13 29
  138. tube test just for 12Ax7?
  139. Sovtek 5Y3GT--good tube?
  140. Are you kidding me!? Really!?
  141. 6SQ7 vs. 6SF5
  142. Anybody have a legible TC-142 schematic?
  143. Woolly guitar sound
  144. 12AX7 Mullard/Philips/Amperex NOS
  145. New JJ 5U4GB whines on warm up.
  146. 7591 vs 6V6
  147. Help me identify some 12ax7 tubes, please?
  148. What does it take to break a tube pin?
  149. EZ81, 6CA4, EL84 Question.
  150. Russian 6P3S
  151. 7868 tube
  152. Screens Still weak in EH6V6?
  153. ken-rad 6l6g and 6v6gc from 1948?
  154. Groove Tubes Marshall distortion Confusion!! lol.
  155. New 12AY7 vs 5751, can't hear the difference...!
  156. B&K 707 Tube Tester - Problem with emmissions test
  157. 6550,6L6,12AX7 and distortion question
  158. Tube question
  159. Any reason I shouldn't...
  160. Teonex
  161. Eurotubes=Bad News
  162. Svetlana factory seconds
  163. Free tube datasheets
  164. RCA 6L6's ?
  165. "Soot" Inside EL84/6BQ5
  166. JCM800 Preamp Clone - Wierd Distortion (oscilloscope pic)
  167. "Shield" brand 6BQ5 Torched Screen Resistors
  168. Preamp tubes
  169. Jan Philips 6L6WGB
  170. Mesa Boogie tubes
  171. R.I.P. CV4004.....Any tube sob stories?
  172. 5Y3 EZ81?
  173. Tube Slag
  174. my NOS 5y3 is not working. bad tube?
  175. Old Hammond Tubes??
  176. Cabs suited for Vox AC50
  177. legacy vl100
  178. I need Help with this tube "8CW5/XL86
  179. Amp should be 100 watts but low on power, why?
  180. 6sl7/12sl7 experimentation ?s'
  181. Question about Tube Output Power
  182. I have some general Q's about tubes!
  183. Question about tube glow.
  184. Hiwatt hi-gain 50 head biasing review
  185. Do different make 12AX7 tubes sound different? and why?
  186. 12at7 labeled as 12ax7
  187. Good Sounding Tubes
  188. New Tubes and disaster
  189. ECC 807 Brimar
  190. In at the deep end....
  191. Hiwatt hi-gain 50 head
  192. 6Y6GT in a Champ ?
  193. Bias probe
  194. No Sound on Fender Twin Pro All tube
  195. hammond tubes question
  196. Crate blue voodoo 60 watt 2-12 combo problems need advise
  197. Ampeg V4, maximizing headroom, needing real answers...
  198. Yellow Jacket Power Tube Adapter
  199. Hammond 7247
  200. The difference a tube can make
  201. What to do
  202. Laney AOR
  203. Tube Tests and Specs
  204. Duende Criatura?
  205. A Good New 12AY7?
  206. Fender Twin Preamp Question.
  207. Ampeg VL-503 not working tube arent glowing
  208. Ampeg SVT pro 3
  209. ECF80 / 6bl8 New ( not NOS ) ???
  210. 5881 question
  211. Useful Valve Test Reports
  212. Help identify a National Electronics 6l6 tube
  213. Tubes
  214. Phase Inverter tube capability
  215. Mesa boogie recto preamp tube placement values
  216. 12b4a ge jan
  217. 5AS4A acceptable Sub For 5U4G ?
  218. What NEW 12AX7 is BEST
  219. Anyone have info on A rcp 808aa tubetester?
  220. Variable cathode resistor
  221. The original chinese 12AX7's
  222. Making a solid state rectifier
  223. Tube amp death (auto bias-trouble)
  224. 12ax7 trouble
  225. Boy, do I HATE this (new tube rant)!
  226. Changing tubes on a Gibson Goldtone Ga-15
  227. 5u4 rattles on powerup
  228. NOS Russian 6Pi6c Beam Tetrodes
  229. Hammond-labeled tubes - mfr?
  230. JJ 6V6s sturdiness
  231. KT66 questions
  232. Changing Vibroluxe Reverb Custom tubes
  233. 6v6, 6f6
  234. What do these tubes do and can I use them in a THD amp?
  235. dsl 100 bias problem
  236. 12AX7 testing
  237. Kt100
  238. Just curious...
  239. What can folks tell me about 6EJ7 ?
  240. Making a quad out of 2 matched pairs
  241. Transconductance and tube performance
  242. Anyone ever try 6CW5s?
  243. 6G6G power tubes in a 5F2A ??
  244. Help with a tube substitution
  245. TV Tubes
  246. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual
  247. Tube testing question
  248. Tube rectifier wear
  249. I am new to tubes and have been looking for help!
  250. Noisy power tubes