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  1. tube x-over noise redux
  2. JE Labs 300b round 4. Wiring, HELP!!!
  3. simple, cheap, great sounding tube amp?
  4. dist on clean tone
  5. mic preamp DIY online
  6. JE Labs 300b round 3. Chassis are Done
  7. Question about using RCA jacks.
  8. Tube Test Power Supply
  9. #19 biased class A
  10. Damping factor? High or low?
  11. This is incredible!--An audio epiphany!!
  12. Triode sound in my car :-) -> How to?
  13. Adding Treb and Bass adjustment?!
  14. Steve Bench cap "tests"
  15. Time Delay Relay Tubes
  16. My Setup and skillset
  17. High dollar power cords ...Myth or magic
  18. Completely new to building amplifiers
  19. Solid or stranded wire for hookup?
  20. The sound of parts
  21. Anyone play with Glow Tubes?
  22. basic e88cc line stage ?
  23. DIY Preamp for Transcendent 150w
  24. Need help with circuit operation. Please.
  25. Which amp for Jordan JX92S Tline ?
  26. Toroid OPTs
  27. Choke Snubber
  28. I met unreasonable unbalanced status!!
  29. schematics for a EL509/ EL519 PP amp needed
  30. Want Tubes - Check this out!!!!
  31. NFB volume control
  32. Tube amp for my Speakers
  33. Quicksilver KT88 mono 60watt amp schematic
  34. Help needed for Marantz 7 clone
  35. SE amp with EL509/6KG6A (help)
  36. a 71A monoblock
  37. DIY and SONY SUPER GRAPHICS
  38. Tube preamp similar to Foreplay
  39. Bass Guitar Tube Amp
  40. Using common mode chokes in filament supply.
  41. Very early tube opamp - Philbrick
  42. JE Labs 300b round 2 1/2 Copper Plates
  43. AC filament supply tweaks?
  44. LL1663 -> 4,6K instead of 5K?
  45. tantalum
  46. SE Tube Preamp circuit using 6922/6dj8 at low voltage(24volt) needed! anyone?
  47. Using a Preamp and no central amp.
  48. Metal film resistors or carbon film in a tube amp?
  49. Audion Sliver Knight Circuit Diagram
  50. WE91 ps caps
  51. Schematic help
  52. TUBE AMP Kenwood KW-40??
  53. screened cable and shielded E88CC
  54. JCM800 as a poweramp, the signal level
  55. Time for low Zout preamp
  56. Ppp 6cg7/6sn7
  57. My first tube preamp
  58. 64 bits and 3 valves
  59. First time Tube Amp
  60. DHT triode push pull amplifier design
  61. russian 6d22c tube
  62. Convergent Audio Technology SL-1 MK3 SCH
  63. Tubecad is back up and running
  64. change to grid choke?
  65. The tube x-over DOES work, but....
  66. Biasing heater supply above ground.
  67. More situation description
  68. 6c9 ??
  69. help! power supply voltage issue
  70. regulated 5V DC supply
  71. Any suggestions to 6aw8a (GE) application?
  72. EL84 BIAS problem - again....
  73. Any other sub for KT 88 output tubes?
  74. Philips HF10 amp not working
  75. Model 91 schematic?
  76. Ability of a PP 2A3 amp to drive 90db speakers?
  77. Potting transformers
  78. ECL 82 low power end tube
  79. Can you adapt a computer power supply for the 5v and 6.3 volt needs?
  80. Single-ended: Triodes or pentodes?
  81. A preamp using a number 26 tube?
  82. PSRR For 6SN7 Buffer?
  83. comment on this design, please.
  84. why not E88C
  85. Another Aopen mother board with tubes
  86. 5894 United Electron 1973
  87. Original Lectron EL34 tubes?
  88. Interstage - is it pointless?
  89. Good tube DIY for EL34's?
  90. 8068
  91. CAT SL-1 Sig MkII
  92. Altec 1570B amps
  93. old power supply tip
  94. The complete 6SN7 preamp
  95. Bottlehead Paramour vs Decware Zen Triode?
  96. 6080/6AS7/6H13C/6H5C in SE?
  97. Emperors new clothes and the sound of tubes
  98. Advantage of Tube Output stage on Preamp?
  99. i want to replace my wima caps in my valve amp is there better out there
  100. power supply for tube preamp
  101. Newbie's 1st Amp, comments please.
  102. 6C33C and GM-70
  103. Totally baffled
  104. Cathode follower driver stage
  105. ASL Wave amp on the Fritz
  106. Tube Question, what the....?
  107. DIY Tube Preamp
  108. EL509/519 -> 6LF6 Adapter
  109. What is this?
  110. Tube rectifiers
  111. Jolida tube amp grounding???
  112. Biasing Push Pull Triode amp into Class A
  113. Tube compressors/limiters
  114. 7 ch Amp kits?
  115. Can I use 4 pr 65 a for audio amp?
  116. Picture of my first project 300B
  117. Hammond 850Q Interstage?
  118. Need help finding simple part for project
  119. 6SN7 troubles!! Help.
  120. Scott LK-72 kit tube amp
  121. Converting AMPEX PR-10
  122. Do I have this CCS configured correctly? Tube preamp..
  123. My current 71a amp
  124. Where to by a tube amp chasis?
  125. JE Labs 300b round 2! layout
  126. OTL Help
  127. Picture of my first tube amp
  128. Your thoughts please
  129. Mcintosh Output Transformers
  130. signal wire
  131. Using 866A Mercury Vapour Rectifiers?
  132. Progress on my JE Labs 300B
  133. Marantz T-1
  134. SE 6c41c/6s41s amp
  135. the unstable sound from tube pre-amp !
  136. Info on Croft Integrated Amp
  137. My first amp: Grounding
  138. how do I increase the bass in 12B4 pre-amp?
  139. DIY curve tester
  140. Anyone has a copy of the superreg of Allan Wright's design
  141. Is this a C core OPT?
  142. Tube Makers
  143. Je labs 300b round 1 : Ding! Ding!
  144. Can someone help me with DIY hybrid preamp? 2sk170 - 6dj8 - cascode
  145. neophyte - transformer potting
  146. Tube CAD Question
  147. Pioneer TX-5A Tuner
  148. Testing Tubes
  149. my first amp: the PSU
  150. Tube Amp Questions
  151. Check my first design, 6900/2A3 IT
  152. EL84 BIAS - how much ??
  153. Best 300B SE OPT?
  154. About tube tape recorder heads
  155. KronZilla
  156. hows this for linear?
  157. What do you think of this circuit?
  158. What are the Most helpful tube websites
  159. Je labs 300b DIY project for NG?
  160. Foreplay pre with Solid State amp? Really?!
  161. Feedback wanted on PSU design
  162. Blue glowing tube
  163. I need a schematic.
  164. vt-25 single-ended
  165. Caps...what the...
  166. Is the KEL-84 a good Starting Point?
  167. Modifications for HK Citation II Power Amplifier
  168. What tube to use?
  169. DC Filament power supply
  170. el34 electroharmonix fat bulb break-in?
  171. MQ-100 Project close to completion!
  172. 6N30P for high voltage
  173. Sweet! Just bought two 1950s PA amps, 300B questions
  174. Comments on a preamp design
  175. Phillps Tube Data
  176. my first valve amp
  177. schematic telequipment D 52
  178. sowter 9050 or Lundahl LL1660 line out transformer?
  179. Can someone explain parafeed & direct coupled & a.c. coupled?
  180. Tube Bias question
  181. Learning PSpice
  182. manley mic pre
  183. GK1 Images
  184. Is this top of bottom view of 12AX7 / 6N30P?
  185. Whatever happend to Svetlana?
  186. R-Core Output Trans from ICL
  187. 26/45 Choice help needed
  188. learning, building and testing tube amp
  189. Where is John Broskie ?
  190. Double push-pull versus single push-pull
  191. Differential SE Amp
  192. Help with homebrew mic preamp please!!!
  193. Chokes.. Importance of and function?
  194. The best of both worlds?
  195. Tango XE Output Iron (merged)
  196. Triode Festival 2002 pictures
  197. Starwars Tubes?
  198. 300B mesh plate, 2,5 Volt Heater
  199. EL84 and EL34 sound
  200. Pcb software for tube designs
  201. Heathkit AA-151 for starting my first DIY build???
  202. Necessary equipment/tools for building
  203. Transcendent T16otl
  204. Gabe's PP EL84 amp kit, anyone?
  205. Russian tubes.
  206. Power Transformers
  207. Using PP output transformers for single ended amp
  208. 6bq5/el84
  209. distortion in one channel of tube amp
  210. Otl
  211. Discoloration inside a tube?
  212. PEARL audio archives
  213. Vademecum nomenclature
  214. 2A3 amp part 1,2,3 (merged)
  215. Luxman MQ360
  216. Paralleling Tubes and SRPP
  217. need amp fast-- found this one, but need schematics
  218. 6922
  219. Thought I better say hello,
  220. 8 watt, 11MSB8 tube amp
  221. Tube amp design parameters (distortion)
  222. help on power supply issues and more!
  223. EL-84 substitute for 7189A
  224. SE OTL amp - What do you think?
  225. Help with tube preamp for solid-state setup
  226. need help/schematics for a tube amp project
  227. SE with the KR300BXL from KR Enterprice
  228. 60Hz/220V??
  229. Regulator for Tube Power Amp
  230. Loose glass envelope
  231. Speaker impedances and output transformers
  232. Dyna Pas 3X?
  233. 12b4a
  234. Good Looking Chassis's
  235. Good Looking Chassis's
  236. 12b4a
  237. Speakers for tubeamp?
  238. SRPP question
  239. 5687 push-pull amp
  240. active plate load v.s. constant current...
  241. 300B Push-Pull and PSE
  242. Tube vs solid state amps
  243. mic preamp help
  244. Newbie question on cheap amp kits
  245. Tube Dampers
  246. Opinions: best current production tubes
  247. line operated design.
  248. Romulus
  249. Hello from Italy & First Question :)
  250. Initial experiences with a common mode choke

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