PDA

View Full Version : Tubes (Valves)



Pages : 1 [2] 3

  1. Do different make 12AX7 tubes sound different? and why?
  2. 12at7 labeled as 12ax7
  3. Good Sounding Tubes
  4. New Tubes and disaster
  5. ECC 807 Brimar
  6. In at the deep end....
  7. Hiwatt hi-gain 50 head
  8. 6Y6GT in a Champ ?
  9. Bias probe
  10. No Sound on Fender Twin Pro All tube
  11. hammond tubes question
  12. Crate blue voodoo 60 watt 2-12 combo problems need advise
  13. Ampeg V4, maximizing headroom, needing real answers...
  14. Yellow Jacket Power Tube Adapter
  15. Hammond 7247
  16. The difference a tube can make
  17. What to do
  18. Laney AOR
  19. Tube Tests and Specs
  20. Duende Criatura?
  21. A Good New 12AY7?
  22. Fender Twin Preamp Question.
  23. Ampeg VL-503 not working tube arent glowing
  24. Ampeg SVT pro 3
  25. ECF80 / 6bl8 New ( not NOS ) ???
  26. 5881 question
  27. Useful Valve Test Reports
  28. Help identify a National Electronics 6l6 tube
  29. Tubes
  30. Phase Inverter tube capability
  31. Mesa boogie recto preamp tube placement values
  32. 12b4a ge jan
  33. 5AS4A acceptable Sub For 5U4G ?
  34. What NEW 12AX7 is BEST
  35. Anyone have info on A rcp 808aa tubetester?
  36. Variable cathode resistor
  37. The original chinese 12AX7's
  38. Making a solid state rectifier
  39. Tube amp death (auto bias-trouble)
  40. 12ax7 trouble
  41. Boy, do I HATE this (new tube rant)!
  42. Changing tubes on a Gibson Goldtone Ga-15
  43. 5u4 rattles on powerup
  44. NOS Russian 6Pi6c Beam Tetrodes
  45. Hammond-labeled tubes - mfr?
  46. JJ 6V6s sturdiness
  47. KT66 questions
  48. Changing Vibroluxe Reverb Custom tubes
  49. 6v6, 6f6
  50. What do these tubes do and can I use them in a THD amp?
  51. dsl 100 bias problem
  52. 12AX7 testing
  53. Kt100
  54. Just curious...
  55. What can folks tell me about 6EJ7 ?
  56. Making a quad out of 2 matched pairs
  57. Transconductance and tube performance
  58. Anyone ever try 6CW5s?
  59. 6G6G power tubes in a 5F2A ??
  60. Help with a tube substitution
  61. TV Tubes
  62. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual
  63. Tube testing question
  64. Tube rectifier wear
  65. I am new to tubes and have been looking for help!
  66. Noisy power tubes
  67. Tube identification: manufacturer logo/markings database?
  68. Yay I got a Telefunken ECC83 for $10
  69. How much light in Power Tubes?
  70. 5Y4GA Rectifier
  71. Soft/Med/Hard Duet...
  72. 6V6 Tubes in a Fender Blues Deluxe Reissue?
  73. 6P6S - Any one used these?
  74. Non-Reissue Tung Sol 5881/6L6WGB, RCA Blackplate 6l6gc Unmatched Pair
  75. An experiment for gassy tubes
  76. 6gw8 replacement?
  77. What brand is this?
  78. 7868 Power Tubes?
  79. 1950s Genuine RCA Radio Tubes and Parts
  80. Tube Education for Blues Deluxe
  81. solid state
  82. 6CA7
  83. '65 Fender Princeton - Tube Suggestions?
  84. Blues Jr. 1 Hot tube
  85. temporary intense glow/dull flash on filament when heaters are turned on
  86. 12AX7 Voltage Problem(s)
  87. Poor little 8CG7
  88. Last word on Sovtek 5881 plate voltages, pleeeeeease.
  89. Using large value screen resistors w/ bypass caps
  90. 5cg8 triode/pentode amp ?
  91. 6SJ7
  92. New Tung-sol 6v6gt voltage
  93. Tube Rattle
  94. Tube Matching
  95. ECC808?
  96. 12ax7 that can handle 400v on the plate!
  97. 6V6G Specs?
  98. Replacement for 12AU6 Tube?
  99. NOS Recto vs New Recto
  100. 5c3 Biasing question
  101. 5881 tube retainers
  102. NOS Source
  103. Weber copper cap Module
  104. 7189A sub?
  105. 6bl8/ecf80 for gain stages
  106. 6L6 headroom, power, and saturation
  107. 6sl7 phase inverter gain stage
  108. 5879 preamp tube
  109. No more Groove Tubes
  110. 6CA4 (EZ81) questions from a n00b. (ELK Stageman bonus pics)
  111. what about Gold Dragon tube
  112. So I got some 6N1P/ECC88's? what should I do with them?
  113. Are these equivalent to anything you know of?
  114. Question about subbing 6V6s for 6L6s
  115. 6V6GT Questions: Fender Champ 5F1
  116. NOS tube guide
  117. Fender Deville 212 Noisey
  118. Caveat on using 6BQ5's in modern EL84 amps!
  119. torroidal trannies question
  120. 6Y6G ST tubes
  121. national gold line 6l6gc
  122. THD Reactive Rectifier
  123. Matched Tube Question
  124. 12AY7EH a hummer?
  125. 12AX7EH CF Failure
  126. circuit diagram
  127. Tube Primer
  128. Best Tubes for Fender Hot Rod Deluxe
  129. hi Fi tubes for geetar amps?
  130. Revolutionary or just another try?
  131. Techtube
  132. Fender/Groove connection
  133. New Tube & Parts "Burn In" - What ???
  134. 5879 preamp tube substitution
  135. Univox Amp Question
  136. reel to reel recorder tube swap
  137. Bugera 6262 help!!
  138. how do I set my Bias?
  139. 12AT7 for Reverb Driver & PI
  140. 6V6 in Class AB1 push-pull mode
  141. Broken GTEL84S (6BQ5) Tube - Works?
  142. Woohoo KT88s
  143. 6N2P-EV Tubes
  144. I have an 6F1P tube, what can I do with it?
  145. strange amp, questions
  146. Increasing distortioin in PP 6L6
  147. NOS Mullard 12AX7 prices
  148. Tube Diving
  149. crate vc 50 3x10
  150. Preamp tubes problem
  151. 6550 Tube Types
  152. 6N6p
  153. Traynor 40 YVC - 1 of 2 tubes out!
  154. Mullards El34's Vs. Svetlana 34's
  155. Do old guitar tubes have any value?
  156. tube ratings?
  157. marshall 800
  158. marshall 2203 tubes
  159. 5U4G vs 5U4GB
  160. 12ax7 Tung Sol(new) Problem
  161. We 350b?
  162. Jensen C12S Impedance?
  163. How to adjust your tube guitar amp
  164. need help changing from 2 to 3 prong Grounded cable for univox u45b project
  165. This Is Too Funny !
  166. Question about biasing my amp.
  167. sharp cutoff pentodes
  168. who used 6SL7?
  169. New Sensor "Tung-Sol" 6V6GT voltages - FYI
  170. stupid nOOb question
  171. Peavey Heritage VTX
  172. who use chinese tube ?
  173. getter problems
  174. Hello and Biasing question
  175. How long do tubes really last?
  176. Anyone got Data sheet for New Sensor "Tung-Sol 6V6GT"?
  177. How Do You Like The JJ X2 Mica 6L6GC
  178. Crate V16 new tubes and speaker
  179. USA Fender 12ax7
  180. Hand made triode; cool!
  181. best 12ax7 for distortion
  182. What is the best 6L6 for a V4?
  183. Brimar 6X5GT - What uF rating
  184. Tubes in Greece!
  185. New Mullard tubes
  186. how much difference does a matched set make?
  187. Where to find modern tube data sheets
  188. Cathode current meter.....build question
  189. Real Reissue KT66's
  190. frequency low down on smaller output tubes
  191. ...vacuum tube THEORY?
  192. How accurate is a "life test"?
  193. 6BQ6 schematic needed
  194. What about TV horizontal deflection tubes as output? I need some schematic with ...
  195. Getting new tubes for blues amp, neep an opinion
  196. Holy mother of God! auction gone nuts
  197. roll your own vacuum tubes
  198. 6V6s
  199. Pin 6 on octal power tubes?
  200. 6021 and 6112 Submini Tubes
  201. Bad Tubes
  202. NOS???
  203. 6V6: 12W or 13W plate dissipation?
  204. Oddball Tubes I'm Looking For
  205. My tube collection!
  206. JJ or EH 7591A?
  207. Wanted: Composite Loadline Chart for P-P 6550 in Class A
  208. Tube Cad / Spice Questions
  209. Eurotubes Any Problems ?
  210. the secret of NOS tubes...
  211. 6L6 replacements
  212. 6N1P Triode. Anyone Familiar?
  213. Lafayette tubes from England ?
  214. National 12AX8's, who made 'em?
  215. 6SJ7 to 12AX7 ??
  216. El34, 6l6, 6v6
  217. metal can 6v6's
  218. Change of Tubes for Marshall DSL 2000 100W
  219. Tung-sol RI 6550 how much can it take?
  220. KT88 / 6550 Bias Questions
  221. where do i start?
  222. Opinions on New Production EF86?
  223. OK! I need help!!!!
  224. Looking for 12ay7/6072 recommendations.
  225. Will bass damage a valve amp?
  226. Tube Recommendations?
  227. High gain pre-amp tube / valve - Question
  228. CBS Rectifier Identification Help Needed
  229. 5AR4 / GZ34 -- Best New Production Tubes?
  230. Who Made the "Realistic Lifetime" EL84?
  231. Old RCA 12ax7
  232. Weird tube death (see "salvaging" post also)
  233. Salvaging valuable tubes - (see "dead" tube post also)
  234. Old tubes - please advice needed (6SC7, 6J7)
  235. best Traynor YBA1 preamp tubes for early breakup?
  236. Opinions of Sovtek tubes
  237. tungsram THANK YOU !!!!!!!
  238. tungsram HELP!!!!
  239. Wit's end with underbiased super
  240. Tubes for AC30CCH
  241. Ampeg V4 and the ECC 832
  242. New Sensor at it again
  243. A Home-Made Triode!??!
  244. ECC83 vs ECC84
  245. The Brick Project
  246. How to ID 12AX7 manufacturer?
  247. Ck512ax
  248. tung sol 12ax7
  249. Is this too good to be true?
  250. tube ID interchange