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  1. A Good New 12AY7?
  2. Fender Twin Preamp Question.
  3. Ampeg VL-503 not working tube arent glowing
  4. Ampeg SVT pro 3
  5. ECF80 / 6bl8 New ( not NOS ) ???
  6. 5881 question
  7. Useful Valve Test Reports
  8. Help identify a National Electronics 6l6 tube
  9. Tubes
  10. Phase Inverter tube capability
  11. Mesa boogie recto preamp tube placement values
  12. 12b4a ge jan
  13. 5AS4A acceptable Sub For 5U4G ?
  14. What NEW 12AX7 is BEST
  15. Anyone have info on A rcp 808aa tubetester?
  16. Variable cathode resistor
  17. The original chinese 12AX7's
  18. Making a solid state rectifier
  19. Tube amp death (auto bias-trouble)
  20. 12ax7 trouble
  21. Boy, do I HATE this (new tube rant)!
  22. Changing tubes on a Gibson Goldtone Ga-15
  23. 5u4 rattles on powerup
  24. NOS Russian 6Pi6c Beam Tetrodes
  25. Hammond-labeled tubes - mfr?
  26. JJ 6V6s sturdiness
  27. KT66 questions
  28. Changing Vibroluxe Reverb Custom tubes
  29. 6v6, 6f6
  30. What do these tubes do and can I use them in a THD amp?
  31. dsl 100 bias problem
  32. 12AX7 testing
  33. Kt100
  34. Just curious...
  35. What can folks tell me about 6EJ7 ?
  36. Making a quad out of 2 matched pairs
  37. Transconductance and tube performance
  38. Anyone ever try 6CW5s?
  39. 6G6G power tubes in a 5F2A ??
  40. Help with a tube substitution
  41. TV Tubes
  42. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual
  43. Tube testing question
  44. Tube rectifier wear
  45. I am new to tubes and have been looking for help!
  46. Noisy power tubes
  47. Tube identification: manufacturer logo/markings database?
  48. Yay I got a Telefunken ECC83 for $10
  49. How much light in Power Tubes?
  50. 5Y4GA Rectifier
  51. Soft/Med/Hard Duet...
  52. 6V6 Tubes in a Fender Blues Deluxe Reissue?
  53. 6P6S - Any one used these?
  54. Non-Reissue Tung Sol 5881/6L6WGB, RCA Blackplate 6l6gc Unmatched Pair
  55. An experiment for gassy tubes
  56. 6gw8 replacement?
  57. What brand is this?
  58. 7868 Power Tubes?
  59. 1950s Genuine RCA Radio Tubes and Parts
  60. Tube Education for Blues Deluxe
  61. solid state
  62. 6CA7
  63. '65 Fender Princeton - Tube Suggestions?
  64. Blues Jr. 1 Hot tube
  65. temporary intense glow/dull flash on filament when heaters are turned on
  66. 12AX7 Voltage Problem(s)
  67. Poor little 8CG7
  68. Last word on Sovtek 5881 plate voltages, pleeeeeease.
  69. Using large value screen resistors w/ bypass caps
  70. 5cg8 triode/pentode amp ?
  71. 6SJ7
  72. New Tung-sol 6v6gt voltage
  73. Tube Rattle
  74. Tube Matching
  75. ECC808?
  76. 12ax7 that can handle 400v on the plate!
  77. 6V6G Specs?
  78. Replacement for 12AU6 Tube?
  79. NOS Recto vs New Recto
  80. 5c3 Biasing question
  81. 5881 tube retainers
  82. NOS Source
  83. Weber copper cap Module
  84. 7189A sub?
  85. 6bl8/ecf80 for gain stages
  86. 6L6 headroom, power, and saturation
  87. 6sl7 phase inverter gain stage
  88. 5879 preamp tube
  89. No more Groove Tubes
  90. 6CA4 (EZ81) questions from a n00b. (ELK Stageman bonus pics)
  91. what about Gold Dragon tube
  92. So I got some 6N1P/ECC88's? what should I do with them?
  93. Are these equivalent to anything you know of?
  94. Question about subbing 6V6s for 6L6s
  95. 6V6GT Questions: Fender Champ 5F1
  96. NOS tube guide
  97. Fender Deville 212 Noisey
  98. Caveat on using 6BQ5's in modern EL84 amps!
  99. torroidal trannies question
  100. 6Y6G ST tubes
  101. national gold line 6l6gc
  102. THD Reactive Rectifier
  103. Matched Tube Question
  104. 12AY7EH a hummer?
  105. 12AX7EH CF Failure
  106. circuit diagram
  107. Tube Primer
  108. Best Tubes for Fender Hot Rod Deluxe
  109. hi Fi tubes for geetar amps?
  110. Revolutionary or just another try?
  111. Techtube
  112. Fender/Groove connection
  113. New Tube & Parts "Burn In" - What ???
  114. 5879 preamp tube substitution
  115. Univox Amp Question
  116. reel to reel recorder tube swap
  117. Bugera 6262 help!!
  118. how do I set my Bias?
  119. 12AT7 for Reverb Driver & PI
  120. 6V6 in Class AB1 push-pull mode
  121. Broken GTEL84S (6BQ5) Tube - Works?
  122. Woohoo KT88s
  123. 6N2P-EV Tubes
  124. I have an 6F1P tube, what can I do with it?
  125. strange amp, questions
  126. Increasing distortioin in PP 6L6
  127. NOS Mullard 12AX7 prices
  128. Tube Diving
  129. crate vc 50 3x10
  130. Preamp tubes problem
  131. 6550 Tube Types
  132. 6N6p
  133. Traynor 40 YVC - 1 of 2 tubes out!
  134. Mullards El34's Vs. Svetlana 34's
  135. Do old guitar tubes have any value?
  136. tube ratings?
  137. marshall 800
  138. marshall 2203 tubes
  139. 5U4G vs 5U4GB
  140. 12ax7 Tung Sol(new) Problem
  141. We 350b?
  142. Jensen C12S Impedance?
  143. How to adjust your tube guitar amp
  144. need help changing from 2 to 3 prong Grounded cable for univox u45b project
  145. This Is Too Funny !
  146. Question about biasing my amp.
  147. sharp cutoff pentodes
  148. who used 6SL7?
  149. New Sensor "Tung-Sol" 6V6GT voltages - FYI
  150. stupid nOOb question
  151. Peavey Heritage VTX
  152. who use chinese tube ?
  153. getter problems
  154. Hello and Biasing question
  155. How long do tubes really last?
  156. Anyone got Data sheet for New Sensor "Tung-Sol 6V6GT"?
  157. How Do You Like The JJ X2 Mica 6L6GC
  158. Crate V16 new tubes and speaker
  159. USA Fender 12ax7
  160. Hand made triode; cool!
  161. best 12ax7 for distortion
  162. What is the best 6L6 for a V4?
  163. Brimar 6X5GT - What uF rating
  164. Tubes in Greece!
  165. New Mullard tubes
  166. how much difference does a matched set make?
  167. Where to find modern tube data sheets
  168. Cathode current meter.....build question
  169. Real Reissue KT66's
  170. frequency low down on smaller output tubes
  171. ...vacuum tube THEORY?
  172. How accurate is a "life test"?
  173. 6BQ6 schematic needed
  174. What about TV horizontal deflection tubes as output? I need some schematic with ...
  175. Getting new tubes for blues amp, neep an opinion
  176. Holy mother of God! auction gone nuts
  177. roll your own vacuum tubes
  178. 6V6s
  179. Pin 6 on octal power tubes?
  180. 6021 and 6112 Submini Tubes
  181. Bad Tubes
  182. NOS???
  183. 6V6: 12W or 13W plate dissipation?
  184. Oddball Tubes I'm Looking For
  185. My tube collection!
  186. JJ or EH 7591A?
  187. Wanted: Composite Loadline Chart for P-P 6550 in Class A
  188. Tube Cad / Spice Questions
  189. Eurotubes Any Problems ?
  190. the secret of NOS tubes...
  191. 6L6 replacements
  192. 6N1P Triode. Anyone Familiar?
  193. Lafayette tubes from England ?
  194. National 12AX8's, who made 'em?
  195. 6SJ7 to 12AX7 ??
  196. El34, 6l6, 6v6
  197. metal can 6v6's
  198. Change of Tubes for Marshall DSL 2000 100W
  199. Tung-sol RI 6550 how much can it take?
  200. KT88 / 6550 Bias Questions
  201. where do i start?
  202. Opinions on New Production EF86?
  203. OK! I need help!!!!
  204. Looking for 12ay7/6072 recommendations.
  205. Will bass damage a valve amp?
  206. Tube Recommendations?
  207. High gain pre-amp tube / valve - Question
  208. CBS Rectifier Identification Help Needed
  209. 5AR4 / GZ34 -- Best New Production Tubes?
  210. Who Made the "Realistic Lifetime" EL84?
  211. Old RCA 12ax7
  212. Weird tube death (see "salvaging" post also)
  213. Salvaging valuable tubes - (see "dead" tube post also)
  214. Old tubes - please advice needed (6SC7, 6J7)
  215. best Traynor YBA1 preamp tubes for early breakup?
  216. Opinions of Sovtek tubes
  217. tungsram THANK YOU !!!!!!!
  218. tungsram HELP!!!!
  219. Wit's end with underbiased super
  220. Tubes for AC30CCH
  221. Ampeg V4 and the ECC 832
  222. New Sensor at it again
  223. A Home-Made Triode!??!
  224. ECC83 vs ECC84
  225. The Brick Project
  226. How to ID 12AX7 manufacturer?
  227. Ck512ax
  228. tung sol 12ax7
  229. Is this too good to be true?
  230. tube ID interchange
  231. choosing tubes help?
  232. Jorenz Tubes?????
  233. I found some NOS tubes
  234. Ampeg B-15-N
  235. Groove tubes "Mullard" 12AX7
  236. Rsd 6l6gc
  237. Experiences with 3DG4s?
  238. Anybody try the TAD short bottle 6L6's?
  239. Reissue Mullard EL-34 ??
  240. Mullard 6L6GT
  241. 12DW7, 7247, ECC832 -- A Cool Tube!
  242. 6v6's in a Plexi?
  243. Tung Sol 6V6 reissue