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