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  1. Amp identification wanted
  2. tubes or not..!
  3. Vitreous Enamel vs Wirewound Resistor
  4. Will Simple 5687 or Etude 12b4A drive headphones?
  5. For Info: We91 Fans
  6. Just finished my new 300B amp
  7. tape alignment hell
  8. caps for RIAA network
  9. tube based CCS
  10. Tube brands.. who is best/most popular..
  11. Vintage Oil Caps
  12. Please critique this 2A3 SE schematic!
  13. KT-88 Ella amplifier, how to lower noise?
  14. PSU2 and power transformer question.
  15. Possible to make a KT88 PP UL schemat OTL ?
  16. Using 12 EL519 for T8
  17. what film capacitors do you use?
  18. 6550, kt88's at 600+ Volts
  19. circuit diagram to build my DIY preamp
  20. The rule to calculate the load impedance of two or more valvces connected in parallel
  21. no capacitors!
  22. SJS SE 300B with Interstage Transformer Mk2
  23. Differential input stage for T8 OTL-OCL from newbie
  24. Scott LK72 output transformer quality ?
  25. Van Scoyoc SRPP Amp - GvT
  26. Newbie/Guitar Amp BOOK recommendation
  27. Hammond PT and KT88 Design costs.
  28. direct coupling
  29. NFB question
  30. ebooks/online literature...
  31. First time tube jitters...
  32. Audio Note Kageki vs. EAR 859 vs. Audio Innovations: The First
  33. Where is the best place to add tubes in this system?
  34. Anyone seen one?
  35. newbie and i mean new
  36. Differential amp, Long tail, Split load - what difference in sonics?
  37. IC geometry
  38. Fully silver hard wired
  39. Possible damage of a 5AS4 full-wave rect...
  40. direct coupling
  41. Good 6L6 schematic needed
  42. I could lose some heat - suggestions?
  43. Svetlana Svetlana EL509-II: Please disregard all my statements about this tube!
  44. help using Tube Tester
  45. @Tanberg owners. help needed..
  46. Electro Harmonix KT90 after 200hrs use
  47. Need suggestions on tube regulator.
  48. EAR 859 questions
  49. First build from scratch.
  50. Tanberg design..
  51. How to use Russian tube 6H6
  52. Are Svet EL509s really EL509s?
  53. Resistors and Capacitors
  54. simple design power amp.. wanted.
  55. SJS SE108Mk2 Amplifier layout.
  56. Free Auctions?
  57. measuring wattage?
  58. Seeking advise on my EL34 amplifier
  59. exchange
  60. CCS in tail of differential phase splitter
  61. Quicksilver 6550A's?
  62. Is this mod worth the effort?
  63. Current sourced heaters
  64. Manual for Tube Technology - Unisis Signature
  65. Valve amp with Dynaudio?
  66. Why can 8W sound as loud as 100W?
  67. Progress of my 813 SE
  68. NOS Tubes
  69. Would it be possible? OTL/OCL KT88?
  70. KT88EH matched quad auction, Fake?!
  71. Interstage attenuation transformer?
  72. HV ON noise
  73. Opinions on Walton Audio 300B Design
  74. Joplin Amp
  75. voltage regulators
  76. CCS for PP Class A output stage?
  77. distortion measurement
  78. Has anybody built the Matthew Reidsma Experimental 45?
  79. Citation II Assembly Manual
  80. what tube preamp DIY kit to match B&W P-5 speakers
  81. heavy duty valve amps.... for PA use....?
  82. Audio Innovation 800 mk2 ? advice?
  83. Tube amps.......AGAIN
  84. driver 6a3
  85. Morgan Jones H/P Amp problems PLEASE HELP
  86. Wad 6550
  87. Ferguson Type: OX170 & Ferguson OP6M Info Needed...
  88. Ebay Stuff - electrolytics for tubies
  89. Pioneer output transformers from the 60's
  90. The future of the Valve.
  91. Trying to understand negative feedback
  92. schematics
  93. Overvolting e-lyts
  94. Bottlehead Paramours done my way
  95. next project: rebuild using fisher 500c trannies
  96. Consonance ELLA
  97. Just a quick Q
  98. Has anyone tried a 6S4A as a 300B driver tube?
  99. Tube Preamp PSU Question
  100. 6N1P for buffer instead of 6DJ8, 6922
  101. quick question about a sovtek 6922
  102. 50.000 $ for a 30W amplifier .
  103. Opinion upon amp life expectancy at 5 hours/day? (theres a catch)
  104. Online Resoucre for Old Tubes?
  105. Comparisons
  106. Conrad Johnson PV10 mod
  107. ETM connected EL/PL509 in T8 OTL-OCL amplifier - how?
  108. good replacement for ECC82
  109. Velleman K4040
  110. $5 SE amp... but is it fried?!
  111. Build with 300B or something else???
  112. Another question
  113. Anybody know these two tubes? DET-9 & Ba
  114. Decent Valve Amp Kit?
  115. distorted hum
  116. Which KT88??
  117. Not connecting grids/anode can hurt tube?
  118. Question for SE Transformer Gurus
  119. Decoupling Paper In Oil capacitor question for KT88 design.
  120. Isabelle Phono Stage
  121. input/driver tube
  122. Best Sounding 6550
  123. toroidal trannies alignment
  124. OTL OCL or Non
  125. How can I use UTC A22 at OPT in pre-amp?
  126. SE Output Transformers
  127. Sq-5
  128. Specs And Curves
  129. Golden Dragon Tube
  130. 2A3 Output Transformer
  131. Powre Transformer for 2A3
  132. Newbie - Is this a good amp?
  133. Reference for DIY AudioCraft in Hong Kong
  134. tubes avalibility
  135. OTL Output Cap Question
  136. Newbie question : Plate CCS
  137. Black Art Single Ended Output Transformers
  138. quick transformer question
  139. CCS for p-p cathode bias ?
  140. Tube output stage for DAC
  141. Reinhöfer Transformers (Germany).
  142. power transformer help !!!
  143. UXCV11 Triode Tube
  144. HVHP shuntreg PCB's available?
  145. Harmon Kardon Ballad Stereo Amplifier
  146. 811A tube internal resistance ?
  147. 8417
  148. Running tubes at lower voltages
  149. EL34-PP building questions
  150. tube 8416 good for audio ???
  151. tube substitution and amp modification guidelines
  152. Real russian tubes anyone??
  153. I'm starting 300B amp
  154. Anyone tried this at home?
  155. push pull bias servo
  156. Sylvania JAN 6L6WGB max plate V?
  157. Repairing valve bases
  158. E55L in triode as driver!
  159. SE Class A with 845or 211. Need a good circuit
  160. st-70 questions... tips?
  161. Biasing a Class A amp information
  162. Holy Grail of Valve Amps
  163. Diff amp driver -> SE output
  164. hipass/lowpass filters
  165. Beginners question(help!)
  166. Capacitor Question /question on cap
  167. Report on 6922 testing
  168. 6ha5
  169. Western electric VT1 tubes
  170. Edge connectors - which to use?
  171. pc mount el34 socket
  172. use MKP capacitor instead of electrolytc for AC filter
  173. 12B4A Linestage
  174. Regulated Heater Supply
  175. Schottky bridge rectifier
  176. 6r-a8???
  177. Plitron Specialist transformer with Unity Coupling
  178. Getting started with tube preamps
  179. Pre-(Line-)Amp with RE074
  180. Interstage Transformer for Experimentation : Hammond 560L
  181. A question regarding Valve fillaments..
  182. Rectified heater voltage problems?
  183. Better than using a resistor as I/O converter
  184. Most responsive tweaker SE9 or 102B
  185. Measurements of tube amps
  186. Nelson Pass-D1-DAC-Output-Stage with tubes ?
  187. High Freq. AC Power for Filaments of 300B SE Power Amp?
  188. Harman Kardon Citation II : love/hate relationships
  189. Happy New Year !
  190. 6c45pi : sonic utopia or sonic hell?
  191. turning a SE 6v6 to a 6bq5 amp
  192. ASL Wave 20
  193. EL32 tube
  194. 50'S GRETSCH tube amp scematics?
  195. "Balanced power"
  196. SE amps opinions for my second amp build needed?
  197. transformer hum
  198. My EAR834 dropped dead! Help!
  199. schmatic for the audio section of A Fisher K-14 chassis
  200. Help me choose a Tube Amp. Project
  201. KT88SE with ECC82
  202. Oscillating Mullard5-20
  203. Distortion in 807 amplifier - please advise
  204. Unity Gain Tube Buffer
  205. Looking for a tweeter amp
  206. Quicksilver?
  207. beginner amp choice question
  208. AC coupling
  209. designing SS power supply
  210. Fender Guitar Amp modifications
  211. Resistors in power supply
  212. Triodes with an extra grid
  213. ECC81 or 83 or 85 or 88 ???
  214. Fisher FM50-B Schematic Needed
  215. Audio Research Database
  216. MJ-Magazine
  217. so i get common tubes free... now i just need a project
  218. current source...
  219. Help with integrated DPP amplifier.
  220. WE old tube question
  221. Looking for a 6550 recommendation...
  222. Counterpoint Manual
  223. Cathode bipass capacitor and transformer impedience
  224. Finally got a tube amp circuit to work!!! (mild debug help needed)
  225. inrush current
  226. Sylvania Chrome top 6SN7 tube
  227. High gain Tube amp problems
  228. 12 volt tube preamp help
  229. Pearl Audio Archives status
  230. Your opinion on 813?
  231. Hi; i am new to tubes
  232. cheapest output transformer for a SE EL84 guitar
  233. Filiment transformer question
  234. Electrolytic Capacitor Insulation
  235. Rca 808
  236. Push pull class A bias question
  237. Twists per inch on filament wiring?
  238. Lynn Olson's web site: AWOL?
  239. Affordable "starter" SE amp
  240. SRPP is....?
  241. guitar amp input jack help
  242. interstage coupling
  243. Where are the 833 amps?
  244. E283cc
  245. OTL design recommendation? (6C33C maybe?)
  246. 6AU4GTA as High voltage rectifier
  247. Question
  248. where can I buy fully assembled tube amplifiers here in the U.S
  249. cryod 6922s
  250. Speaker Impedance

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