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  1. Anyone have info on A rcp 808aa tubetester?
  2. Variable cathode resistor
  3. The original chinese 12AX7's
  4. Making a solid state rectifier
  5. Tube amp death (auto bias-trouble)
  6. 12ax7 trouble
  7. Boy, do I HATE this (new tube rant)!
  8. Changing tubes on a Gibson Goldtone Ga-15
  9. 5u4 rattles on powerup
  10. NOS Russian 6Pi6c Beam Tetrodes
  11. Hammond-labeled tubes - mfr?
  12. JJ 6V6s sturdiness
  13. KT66 questions
  14. Changing Vibroluxe Reverb Custom tubes
  15. 6v6, 6f6
  16. What do these tubes do and can I use them in a THD amp?
  17. dsl 100 bias problem
  18. 12AX7 testing
  19. Kt100
  20. Just curious...
  21. What can folks tell me about 6EJ7 ?
  22. Making a quad out of 2 matched pairs
  23. Transconductance and tube performance
  24. Anyone ever try 6CW5s?
  25. 6G6G power tubes in a 5F2A ??
  26. Help with a tube substitution
  27. TV Tubes
  28. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual
  29. Tube testing question
  30. Tube rectifier wear
  31. I am new to tubes and have been looking for help!
  32. Noisy power tubes
  33. Tube identification: manufacturer logo/markings database?
  34. Yay I got a Telefunken ECC83 for $10
  35. How much light in Power Tubes?
  36. 5Y4GA Rectifier
  37. Soft/Med/Hard Duet...
  38. 6V6 Tubes in a Fender Blues Deluxe Reissue?
  39. 6P6S - Any one used these?
  40. Non-Reissue Tung Sol 5881/6L6WGB, RCA Blackplate 6l6gc Unmatched Pair
  41. An experiment for gassy tubes
  42. 6gw8 replacement?
  43. What brand is this?
  44. 7868 Power Tubes?
  45. 1950s Genuine RCA Radio Tubes and Parts
  46. Tube Education for Blues Deluxe
  47. solid state
  48. 6CA7
  49. '65 Fender Princeton - Tube Suggestions?
  50. Blues Jr. 1 Hot tube
  51. temporary intense glow/dull flash on filament when heaters are turned on
  52. 12AX7 Voltage Problem(s)
  53. Poor little 8CG7
  54. Last word on Sovtek 5881 plate voltages, pleeeeeease.
  55. Using large value screen resistors w/ bypass caps
  56. 5cg8 triode/pentode amp ?
  57. 6SJ7
  58. New Tung-sol 6v6gt voltage
  59. Tube Rattle
  60. Tube Matching
  61. ECC808?
  62. 12ax7 that can handle 400v on the plate!
  63. 6V6G Specs?
  64. Replacement for 12AU6 Tube?
  65. NOS Recto vs New Recto
  66. 5c3 Biasing question
  67. 5881 tube retainers
  68. NOS Source
  69. Weber copper cap Module
  70. 7189A sub?
  71. 6bl8/ecf80 for gain stages
  72. 6L6 headroom, power, and saturation
  73. 6sl7 phase inverter gain stage
  74. 5879 preamp tube
  75. No more Groove Tubes
  76. 6CA4 (EZ81) questions from a n00b. (ELK Stageman bonus pics)
  77. what about Gold Dragon tube
  78. So I got some 6N1P/ECC88's? what should I do with them?
  79. Are these equivalent to anything you know of?
  80. Question about subbing 6V6s for 6L6s
  81. 6V6GT Questions: Fender Champ 5F1
  82. NOS tube guide
  83. Fender Deville 212 Noisey
  84. Caveat on using 6BQ5's in modern EL84 amps!
  85. torroidal trannies question
  86. 6Y6G ST tubes
  87. national gold line 6l6gc
  88. THD Reactive Rectifier
  89. Matched Tube Question
  90. 12AY7EH a hummer?
  91. 12AX7EH CF Failure
  92. circuit diagram
  93. Tube Primer
  94. Best Tubes for Fender Hot Rod Deluxe
  95. hi Fi tubes for geetar amps?
  96. Revolutionary or just another try?
  97. Techtube
  98. Fender/Groove connection
  99. New Tube & Parts "Burn In" - What ???
  100. 5879 preamp tube substitution
  101. Univox Amp Question
  102. reel to reel recorder tube swap
  103. Bugera 6262 help!!
  104. how do I set my Bias?
  105. 12AT7 for Reverb Driver & PI
  106. 6V6 in Class AB1 push-pull mode
  107. Broken GTEL84S (6BQ5) Tube - Works?
  108. Woohoo KT88s
  109. 6N2P-EV Tubes
  110. I have an 6F1P tube, what can I do with it?
  111. strange amp, questions
  112. Increasing distortioin in PP 6L6
  113. NOS Mullard 12AX7 prices
  114. Tube Diving
  115. crate vc 50 3x10
  116. Preamp tubes problem
  117. 6550 Tube Types
  118. 6N6p
  119. Traynor 40 YVC - 1 of 2 tubes out!
  120. Mullards El34's Vs. Svetlana 34's
  121. Do old guitar tubes have any value?
  122. tube ratings?
  123. marshall 800
  124. marshall 2203 tubes
  125. 5U4G vs 5U4GB
  126. 12ax7 Tung Sol(new) Problem
  127. We 350b?
  128. Jensen C12S Impedance?
  129. How to adjust your tube guitar amp
  130. need help changing from 2 to 3 prong Grounded cable for univox u45b project
  131. This Is Too Funny !
  132. Question about biasing my amp.
  133. sharp cutoff pentodes
  134. who used 6SL7?
  135. New Sensor "Tung-Sol" 6V6GT voltages - FYI
  136. stupid nOOb question
  137. Peavey Heritage VTX
  138. who use chinese tube ?
  139. getter problems
  140. Hello and Biasing question
  141. How long do tubes really last?
  142. Anyone got Data sheet for New Sensor "Tung-Sol 6V6GT"?
  143. How Do You Like The JJ X2 Mica 6L6GC
  144. Crate V16 new tubes and speaker
  145. USA Fender 12ax7
  146. Hand made triode; cool!
  147. best 12ax7 for distortion
  148. What is the best 6L6 for a V4?
  149. Brimar 6X5GT - What uF rating
  150. Tubes in Greece!
  151. New Mullard tubes
  152. how much difference does a matched set make?
  153. Where to find modern tube data sheets
  154. Cathode current meter.....build question
  155. Real Reissue KT66's
  156. frequency low down on smaller output tubes
  157. ...vacuum tube THEORY?
  158. How accurate is a "life test"?
  159. 6BQ6 schematic needed
  160. What about TV horizontal deflection tubes as output? I need some schematic with ...
  161. Getting new tubes for blues amp, neep an opinion
  162. Holy mother of God! auction gone nuts
  163. roll your own vacuum tubes
  164. 6V6s
  165. Pin 6 on octal power tubes?
  166. 6021 and 6112 Submini Tubes
  167. Bad Tubes
  168. NOS???
  169. 6V6: 12W or 13W plate dissipation?
  170. Oddball Tubes I'm Looking For
  171. My tube collection!
  172. JJ or EH 7591A?
  173. Wanted: Composite Loadline Chart for P-P 6550 in Class A
  174. Tube Cad / Spice Questions
  175. Eurotubes Any Problems ?
  176. the secret of NOS tubes...
  177. 6L6 replacements
  178. 6N1P Triode. Anyone Familiar?
  179. Lafayette tubes from England ?
  180. National 12AX8's, who made 'em?
  181. 6SJ7 to 12AX7 ??
  182. El34, 6l6, 6v6
  183. metal can 6v6's
  184. Change of Tubes for Marshall DSL 2000 100W
  185. Tung-sol RI 6550 how much can it take?
  186. KT88 / 6550 Bias Questions
  187. where do i start?
  188. Opinions on New Production EF86?
  189. OK! I need help!!!!
  190. Looking for 12ay7/6072 recommendations.
  191. Will bass damage a valve amp?
  192. Tube Recommendations?
  193. High gain pre-amp tube / valve - Question
  194. CBS Rectifier Identification Help Needed
  195. 5AR4 / GZ34 -- Best New Production Tubes?
  196. Who Made the "Realistic Lifetime" EL84?
  197. Old RCA 12ax7
  198. Weird tube death (see "salvaging" post also)
  199. Salvaging valuable tubes - (see "dead" tube post also)
  200. Old tubes - please advice needed (6SC7, 6J7)
  201. best Traynor YBA1 preamp tubes for early breakup?
  202. Opinions of Sovtek tubes
  203. tungsram THANK YOU !!!!!!!
  204. tungsram HELP!!!!
  205. Wit's end with underbiased super
  206. Tubes for AC30CCH
  207. Ampeg V4 and the ECC 832
  208. New Sensor at it again
  209. A Home-Made Triode!??!
  210. ECC83 vs ECC84
  211. The Brick Project
  212. How to ID 12AX7 manufacturer?
  213. Ck512ax
  214. tung sol 12ax7
  215. Is this too good to be true?
  216. tube ID interchange
  217. choosing tubes help?
  218. Jorenz Tubes?????
  219. I found some NOS tubes
  220. Ampeg B-15-N
  221. Groove tubes "Mullard" 12AX7
  222. Rsd 6l6gc
  223. Experiences with 3DG4s?
  224. Anybody try the TAD short bottle 6L6's?
  225. Reissue Mullard EL-34 ??
  226. Mullard 6L6GT
  227. 12DW7, 7247, ECC832 -- A Cool Tube!
  228. 6v6's in a Plexi?
  229. Tung Sol 6V6 reissue