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  1. Tube Question, what the....?
  2. DIY Tube Preamp
  3. EL509/519 -> 6LF6 Adapter
  4. What is this?
  5. Tube rectifiers
  6. Jolida tube amp grounding???
  7. Biasing Push Pull Triode amp into Class A
  8. Tube compressors/limiters
  9. 7 ch Amp kits?
  10. Can I use 4 pr 65 a for audio amp?
  11. Picture of my first project 300B
  12. Hammond 850Q Interstage?
  13. Need help finding simple part for project
  14. 6SN7 troubles!! Help.
  15. Scott LK-72 kit tube amp
  16. Converting AMPEX PR-10
  17. Do I have this CCS configured correctly? Tube preamp..
  18. My current 71a amp
  19. Where to by a tube amp chasis?
  20. JE Labs 300b round 2! layout
  21. OTL Help
  22. Picture of my first tube amp
  23. Your thoughts please
  24. Mcintosh Output Transformers
  25. signal wire
  26. Using 866A Mercury Vapour Rectifiers?
  27. Progress on my JE Labs 300B
  28. Marantz T-1
  29. SE 6c41c/6s41s amp
  30. the unstable sound from tube pre-amp !
  31. Info on Croft Integrated Amp
  32. My first amp: Grounding
  33. how do I increase the bass in 12B4 pre-amp?
  34. DIY curve tester
  35. Anyone has a copy of the superreg of Allan Wright's design
  36. Is this a C core OPT?
  37. Tube Makers
  38. Je labs 300b round 1 : Ding! Ding!
  39. Can someone help me with DIY hybrid preamp? 2sk170 - 6dj8 - cascode
  40. neophyte - transformer potting
  41. Tube CAD Question
  42. Pioneer TX-5A Tuner
  43. Testing Tubes
  44. my first amp: the PSU
  45. Tube Amp Questions
  46. Check my first design, 6900/2A3 IT
  47. EL84 BIAS - how much ??
  48. Best 300B SE OPT?
  49. About tube tape recorder heads
  50. KronZilla
  51. hows this for linear?
  52. What do you think of this circuit?
  53. What are the Most helpful tube websites
  54. Je labs 300b DIY project for NG?
  55. Foreplay pre with Solid State amp? Really?!
  56. Feedback wanted on PSU design
  57. Blue glowing tube
  58. I need a schematic.
  59. vt-25 single-ended
  60. Caps...what the...
  61. Is the KEL-84 a good Starting Point?
  62. Modifications for HK Citation II Power Amplifier
  63. What tube to use?
  64. DC Filament power supply
  65. el34 electroharmonix fat bulb break-in?
  66. MQ-100 Project close to completion!
  67. 6N30P for high voltage
  68. Sweet! Just bought two 1950s PA amps, 300B questions
  69. Comments on a preamp design
  70. Phillps Tube Data
  71. my first valve amp
  72. schematic telequipment D 52
  73. sowter 9050 or Lundahl LL1660 line out transformer?
  74. Can someone explain parafeed & direct coupled & a.c. coupled?
  75. Tube Bias question
  76. Learning PSpice
  77. manley mic pre
  78. GK1 Images
  79. Is this top of bottom view of 12AX7 / 6N30P?
  80. Whatever happend to Svetlana?
  81. R-Core Output Trans from ICL
  82. 26/45 Choice help needed
  83. learning, building and testing tube amp
  84. Where is John Broskie ?
  85. Double push-pull versus single push-pull
  86. Differential SE Amp
  87. Help with homebrew mic preamp please!!!
  88. Chokes.. Importance of and function?
  89. The best of both worlds?
  90. Tango XE Output Iron (merged)
  91. Triode Festival 2002 pictures
  92. Starwars Tubes?
  93. 300B mesh plate, 2,5 Volt Heater
  94. EL84 and EL34 sound
  95. Pcb software for tube designs
  96. Heathkit AA-151 for starting my first DIY build???
  97. Necessary equipment/tools for building
  98. Transcendent T16otl
  99. Gabe's PP EL84 amp kit, anyone?
  100. Russian tubes.
  101. Power Transformers
  102. Using PP output transformers for single ended amp
  103. 6bq5/el84
  104. distortion in one channel of tube amp
  105. Otl
  106. Discoloration inside a tube?
  107. PEARL audio archives
  108. Vademecum nomenclature
  109. 2A3 amp part 1,2,3 (merged)
  110. Luxman MQ360
  111. Paralleling Tubes and SRPP
  112. need amp fast-- found this one, but need schematics
  113. 6922
  114. Thought I better say hello,
  115. 8 watt, 11MSB8 tube amp
  116. Tube amp design parameters (distortion)
  117. help on power supply issues and more!
  118. EL-84 substitute for 7189A
  119. SE OTL amp - What do you think?
  120. Help with tube preamp for solid-state setup
  121. need help/schematics for a tube amp project
  122. SE with the KR300BXL from KR Enterprice
  123. 60Hz/220V??
  124. Regulator for Tube Power Amp
  125. Loose glass envelope
  126. Speaker impedances and output transformers
  127. Dyna Pas 3X?
  128. 12b4a
  129. Good Looking Chassis's
  130. Good Looking Chassis's
  131. 12b4a
  132. Speakers for tubeamp?
  133. SRPP question
  134. 5687 push-pull amp
  135. active plate load v.s. constant current...
  136. 300B Push-Pull and PSE
  137. Tube vs solid state amps
  138. mic preamp help
  139. Newbie question on cheap amp kits
  140. Tube Dampers
  141. Opinions: best current production tubes
  142. line operated design.
  143. Romulus
  144. Hello from Italy & First Question :)
  145. Initial experiences with a common mode choke
  146. Cleaning oxidised tube pins.
  147. 6DJ8/ECC88 IEC 10M Master Series
  148. Electrostatic Shields
  149. E = m x c^2 .... Energy = mass x lightspeed squared
  150. Question about Preamps
  151. Tube Amp Help?
  152. Tube subwoofer amp
  153. Tomb Raider
  154. Anyone make a VU with a magic eye ?
  155. Sovtek datasheets...
  156. 300B pepsi challenge
  157. Templetone AM Raidio ??
  158. Russian EL509 / 6KG6 quality question??
  159. problems after rebuild
  160. Tubes and Solid State Overview
  161. does anyone know this amp?
  162. A-openís new motherboard with vacuum tube preamp
  163. freaky new phonostage
  164. Cathode bypass caps?
  165. 6x5 rectifier substitutes
  166. Found 2000 tubes and gear
  167. Soundcraftsmen 220
  168. Pops and Hisses from garage sale...
  169. Line Output Transformer needs schema
  170. What happens when tube fails
  171. "Aperture" Preamp Chassis
  172. My DIY amp (some pics)
  173. DIY Hi-fi Stereo Tube Amplifier
  174. Blue Tubes the glow
  175. Fisher 80c - knob missing...
  176. .22uf cap in place of .25uf coupling cap, OK?
  177. Balancing PP output - which?
  178. Bias procedure + Schematics cta 501
  179. Magnetic Interactions
  180. Looking for Data/Information on E182CC and 6SN7 tubes
  181. ARC Classic 60 circuit
  182. How to make balanced outputs in a pre amplifier
  183. Audio Research Phono Reference
  184. Copland 501 no sound, NEWBIE
  185. looking for a tube - help!
  186. 6H30 vs 5687 vs 12AU7 vs ?
  187. Output transformer makes odd whining noise
  188. 807 pp amp - help
  189. MFA MC Reference
  190. output xformer comparison
  191. Need GU-81m data
  192. Audio Research Ls 2
  193. Focusing radiated cathode heat back on itself
  194. Audio Research New 12AX7
  195. Old amp-rebuild or dismantle?
  196. Very old tube-amp!
  197. 6bq5
  198. Pro's&con's of PCB's
  199. Tubeamp for tube-newbie
  200. Preamp with 6sn7 & 6sl7 SRPP ???
  201. Any new computer designed tubes?
  202. torroidal x-former suppliers?
  203. torroidal x-former suppliers?
  204. Bridging question
  205. Motherboard w/ integrated tube line stage
  206. Amp idea - your commend pls
  207. 6L6's with low voltage
  208. Jensen Caps!!??
  209. Class of operation measuring
  210. Consonance Amps.
  211. Class AB vs. Class A
  212. Fisher 800C phase inverter adjustment
  213. VT-229s
  214. Fisher Stereo Separation question.
  215. Inverting mode ?
  216. What tubes are best for preamp?
  217. balanced stereo tube preamp for a recording studio
  218. Line preamp for 2A3 amp
  219. 6C33C/6H6P amp - which one?
  220. EC8020: Where I could buy some samples ?
  221. Hi guys, What tube amp projects are there for around $100 or less?
  222. Low-pass filter and driver stage (...only experts !!!)
  223. looking for ultralinear push-pull project
  224. ..my little ecc82 preamp-project
  225. Magnavox 15wp-p
  226. 6c45
  227. Jadis
  228. Cathode bypass cap ?
  229. 6c33c Question
  230. Hi guys. i just got some tubes, and im wondering...
  231. 5687 long tail pair
  232. PSU capacitance and Toobe Rectifiers
  233. Isolation of mains xformers from circuit for headamp
  234. Tube buffer
  235. PSU transformer-tappings
  236. Trouble biasing Copland CTA-501
  237. Where can i find information about diy output transformers?
  238. Input signals and my amp
  239. Looking for a partnering poweramp
  240. Need some help here,please - 3V only amp!
  241. 211 power amp
  242. Hickok 600/605/800 settings?
  243. Power rating for push pull configuration question
  244. Beginners Project: Need a schematics for a small simple EL84 SE (or PSE) amp
  245. tuner
  246. All triode no feedback direct drive for ESL
  247. 5842 or EC8010 with OPT!
  248. Anode choke question
  249. Info about cross coupled phase inverter
  250. I once saw....(looking for a tube amp)

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