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