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  1. In at the deep end....
  2. Hiwatt hi-gain 50 head
  3. 6Y6GT in a Champ ?
  4. Bias probe
  5. No Sound on Fender Twin Pro All tube
  6. hammond tubes question
  7. Crate blue voodoo 60 watt 2-12 combo problems need advise
  8. Ampeg V4, maximizing headroom, needing real answers...
  9. Yellow Jacket Power Tube Adapter
  10. Hammond 7247
  11. The difference a tube can make
  12. What to do
  13. Laney AOR
  14. Tube Tests and Specs
  15. Duende Criatura?
  16. A Good New 12AY7?
  17. Fender Twin Preamp Question.
  18. Ampeg VL-503 not working tube arent glowing
  19. Ampeg SVT pro 3
  20. ECF80 / 6bl8 New ( not NOS ) ???
  21. 5881 question
  22. Useful Valve Test Reports
  23. Help identify a National Electronics 6l6 tube
  24. Tubes
  25. Phase Inverter tube capability
  26. Mesa boogie recto preamp tube placement values
  27. 12b4a ge jan
  28. 5AS4A acceptable Sub For 5U4G ?
  29. What NEW 12AX7 is BEST
  30. Anyone have info on A rcp 808aa tubetester?
  31. Variable cathode resistor
  32. The original chinese 12AX7's
  33. Making a solid state rectifier
  34. Tube amp death (auto bias-trouble)
  35. 12ax7 trouble
  36. Boy, do I HATE this (new tube rant)!
  37. Changing tubes on a Gibson Goldtone Ga-15
  38. 5u4 rattles on powerup
  39. NOS Russian 6Pi6c Beam Tetrodes
  40. Hammond-labeled tubes - mfr?
  41. JJ 6V6s sturdiness
  42. KT66 questions
  43. Changing Vibroluxe Reverb Custom tubes
  44. 6v6, 6f6
  45. What do these tubes do and can I use them in a THD amp?
  46. dsl 100 bias problem
  47. 12AX7 testing
  48. Kt100
  49. Just curious...
  50. What can folks tell me about 6EJ7 ?
  51. Making a quad out of 2 matched pairs
  52. Transconductance and tube performance
  53. Anyone ever try 6CW5s?
  54. 6G6G power tubes in a 5F2A ??
  55. Help with a tube substitution
  56. TV Tubes
  57. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual
  58. Tube testing question
  59. Tube rectifier wear
  60. I am new to tubes and have been looking for help!
  61. Noisy power tubes
  62. Tube identification: manufacturer logo/markings database?
  63. Yay I got a Telefunken ECC83 for $10
  64. How much light in Power Tubes?
  65. 5Y4GA Rectifier
  66. Soft/Med/Hard Duet...
  67. 6V6 Tubes in a Fender Blues Deluxe Reissue?
  68. 6P6S - Any one used these?
  69. Non-Reissue Tung Sol 5881/6L6WGB, RCA Blackplate 6l6gc Unmatched Pair
  70. An experiment for gassy tubes
  71. 6gw8 replacement?
  72. What brand is this?
  73. 7868 Power Tubes?
  74. 1950s Genuine RCA Radio Tubes and Parts
  75. Tube Education for Blues Deluxe
  76. solid state
  77. 6CA7
  78. '65 Fender Princeton - Tube Suggestions?
  79. Blues Jr. 1 Hot tube
  80. temporary intense glow/dull flash on filament when heaters are turned on
  81. 12AX7 Voltage Problem(s)
  82. Poor little 8CG7
  83. Last word on Sovtek 5881 plate voltages, pleeeeeease.
  84. Using large value screen resistors w/ bypass caps
  85. 5cg8 triode/pentode amp ?
  86. 6SJ7
  87. New Tung-sol 6v6gt voltage
  88. Tube Rattle
  89. Tube Matching
  90. ECC808?
  91. 12ax7 that can handle 400v on the plate!
  92. 6V6G Specs?
  93. Replacement for 12AU6 Tube?
  94. NOS Recto vs New Recto
  95. 5c3 Biasing question
  96. 5881 tube retainers
  97. NOS Source
  98. Weber copper cap Module
  99. 7189A sub?
  100. 6bl8/ecf80 for gain stages
  101. 6L6 headroom, power, and saturation
  102. 6sl7 phase inverter gain stage
  103. 5879 preamp tube
  104. No more Groove Tubes
  105. 6CA4 (EZ81) questions from a n00b. (ELK Stageman bonus pics)
  106. what about Gold Dragon tube
  107. So I got some 6N1P/ECC88's? what should I do with them?
  108. Are these equivalent to anything you know of?
  109. Question about subbing 6V6s for 6L6s
  110. 6V6GT Questions: Fender Champ 5F1
  111. NOS tube guide
  112. Fender Deville 212 Noisey
  113. Caveat on using 6BQ5's in modern EL84 amps!
  114. torroidal trannies question
  115. 6Y6G ST tubes
  116. national gold line 6l6gc
  117. THD Reactive Rectifier
  118. Matched Tube Question
  119. 12AY7EH a hummer?
  120. 12AX7EH CF Failure
  121. circuit diagram
  122. Tube Primer
  123. Best Tubes for Fender Hot Rod Deluxe
  124. hi Fi tubes for geetar amps?
  125. Revolutionary or just another try?
  126. Techtube
  127. Fender/Groove connection
  128. New Tube & Parts "Burn In" - What ???
  129. 5879 preamp tube substitution
  130. Univox Amp Question
  131. reel to reel recorder tube swap
  132. Bugera 6262 help!!
  133. how do I set my Bias?
  134. 12AT7 for Reverb Driver & PI
  135. 6V6 in Class AB1 push-pull mode
  136. Broken GTEL84S (6BQ5) Tube - Works?
  137. Woohoo KT88s
  138. 6N2P-EV Tubes
  139. I have an 6F1P tube, what can I do with it?
  140. strange amp, questions
  141. Increasing distortioin in PP 6L6
  142. NOS Mullard 12AX7 prices
  143. Tube Diving
  144. crate vc 50 3x10
  145. Preamp tubes problem
  146. 6550 Tube Types
  147. 6N6p
  148. Traynor 40 YVC - 1 of 2 tubes out!
  149. Mullards El34's Vs. Svetlana 34's
  150. Do old guitar tubes have any value?
  151. tube ratings?
  152. marshall 800
  153. marshall 2203 tubes
  154. 5U4G vs 5U4GB
  155. 12ax7 Tung Sol(new) Problem
  156. We 350b?
  157. Jensen C12S Impedance?
  158. How to adjust your tube guitar amp
  159. need help changing from 2 to 3 prong Grounded cable for univox u45b project
  160. This Is Too Funny !
  161. Question about biasing my amp.
  162. sharp cutoff pentodes
  163. who used 6SL7?
  164. New Sensor "Tung-Sol" 6V6GT voltages - FYI
  165. stupid nOOb question
  166. Peavey Heritage VTX
  167. who use chinese tube ?
  168. getter problems
  169. Hello and Biasing question
  170. How long do tubes really last?
  171. Anyone got Data sheet for New Sensor "Tung-Sol 6V6GT"?
  172. How Do You Like The JJ X2 Mica 6L6GC
  173. Crate V16 new tubes and speaker
  174. USA Fender 12ax7
  175. Hand made triode; cool!
  176. best 12ax7 for distortion
  177. What is the best 6L6 for a V4?
  178. Brimar 6X5GT - What uF rating
  179. Tubes in Greece!
  180. New Mullard tubes
  181. how much difference does a matched set make?
  182. Where to find modern tube data sheets
  183. Cathode current meter.....build question
  184. Real Reissue KT66's
  185. frequency low down on smaller output tubes
  186. ...vacuum tube THEORY?
  187. How accurate is a "life test"?
  188. 6BQ6 schematic needed
  189. What about TV horizontal deflection tubes as output? I need some schematic with ...
  190. Getting new tubes for blues amp, neep an opinion
  191. Holy mother of God! auction gone nuts
  192. roll your own vacuum tubes
  193. 6V6s
  194. Pin 6 on octal power tubes?
  195. 6021 and 6112 Submini Tubes
  196. Bad Tubes
  197. NOS???
  198. 6V6: 12W or 13W plate dissipation?
  199. Oddball Tubes I'm Looking For
  200. My tube collection!
  201. JJ or EH 7591A?
  202. Wanted: Composite Loadline Chart for P-P 6550 in Class A
  203. Tube Cad / Spice Questions
  204. Eurotubes Any Problems ?
  205. the secret of NOS tubes...
  206. 6L6 replacements
  207. 6N1P Triode. Anyone Familiar?
  208. Lafayette tubes from England ?
  209. National 12AX8's, who made 'em?
  210. 6SJ7 to 12AX7 ??
  211. El34, 6l6, 6v6
  212. metal can 6v6's
  213. Change of Tubes for Marshall DSL 2000 100W
  214. Tung-sol RI 6550 how much can it take?
  215. KT88 / 6550 Bias Questions
  216. where do i start?
  217. Opinions on New Production EF86?
  218. OK! I need help!!!!
  219. Looking for 12ay7/6072 recommendations.
  220. Will bass damage a valve amp?
  221. Tube Recommendations?
  222. High gain pre-amp tube / valve - Question
  223. CBS Rectifier Identification Help Needed
  224. 5AR4 / GZ34 -- Best New Production Tubes?
  225. Who Made the "Realistic Lifetime" EL84?
  226. Old RCA 12ax7
  227. Weird tube death (see "salvaging" post also)
  228. Salvaging valuable tubes - (see "dead" tube post also)
  229. Old tubes - please advice needed (6SC7, 6J7)
  230. best Traynor YBA1 preamp tubes for early breakup?
  231. Opinions of Sovtek tubes
  232. tungsram THANK YOU !!!!!!!
  233. tungsram HELP!!!!
  234. Wit's end with underbiased super
  235. Tubes for AC30CCH
  236. Ampeg V4 and the ECC 832
  237. New Sensor at it again
  238. A Home-Made Triode!??!
  239. ECC83 vs ECC84
  240. The Brick Project
  241. How to ID 12AX7 manufacturer?
  242. Ck512ax
  243. tung sol 12ax7
  244. Is this too good to be true?
  245. tube ID interchange
  246. choosing tubes help?
  247. Jorenz Tubes?????
  248. I found some NOS tubes
  249. Ampeg B-15-N
  250. Groove tubes "Mullard" 12AX7