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  1. Are these Caps any good?
  2. ...in SE mode !
  3. Simple 6BM8 at Evolve Power Amps?
  4. Newbie needs help. Basic PSU design and choke question.
  5. Audio Innovations 800 (series 2)
  6. 12B4A PP schematic
  7. Breakdown between solder tags?
  8. Caps topology
  9. questions about tubeamp building
  10. Antonio Tucci
  11. Choke Load or WOT
  12. Amp identification wanted
  13. tubes or not..!
  14. Vitreous Enamel vs Wirewound Resistor
  15. Will Simple 5687 or Etude 12b4A drive headphones?
  16. For Info: We91 Fans
  17. Just finished my new 300B amp
  18. tape alignment hell
  19. caps for RIAA network
  20. tube based CCS
  21. Tube brands.. who is best/most popular..
  22. Vintage Oil Caps
  23. Please critique this 2A3 SE schematic!
  24. KT-88 Ella amplifier, how to lower noise?
  25. PSU2 and power transformer question.
  26. Possible to make a KT88 PP UL schemat OTL ?
  27. Using 12 EL519 for T8
  28. what film capacitors do you use?
  29. 6550, kt88's at 600+ Volts
  30. circuit diagram to build my DIY preamp
  31. The rule to calculate the load impedance of two or more valvces connected in parallel
  32. no capacitors!
  33. SJS SE 300B with Interstage Transformer Mk2
  34. Differential input stage for T8 OTL-OCL from newbie
  35. Scott LK72 output transformer quality ?
  36. Van Scoyoc SRPP Amp - GvT
  37. Newbie/Guitar Amp BOOK recommendation
  38. Hammond PT and KT88 Design costs.
  39. direct coupling
  40. NFB question
  41. ebooks/online literature...
  42. First time tube jitters...
  43. Audio Note Kageki vs. EAR 859 vs. Audio Innovations: The First
  44. Where is the best place to add tubes in this system?
  45. Anyone seen one?
  46. newbie and i mean new
  47. Differential amp, Long tail, Split load - what difference in sonics?
  48. IC geometry
  49. Fully silver hard wired
  50. Possible damage of a 5AS4 full-wave rect...
  51. direct coupling
  52. Good 6L6 schematic needed
  53. I could lose some heat - suggestions?
  54. Svetlana Svetlana EL509-II: Please disregard all my statements about this tube!
  55. help using Tube Tester
  56. @Tanberg owners. help needed..
  57. Electro Harmonix KT90 after 200hrs use
  58. Need suggestions on tube regulator.
  59. EAR 859 questions
  60. First build from scratch.
  61. Tanberg design..
  62. How to use Russian tube 6H6
  63. Are Svet EL509s really EL509s?
  64. Resistors and Capacitors
  65. simple design power amp.. wanted.
  66. SJS SE108Mk2 Amplifier layout.
  67. Free Auctions?
  68. measuring wattage?
  69. Seeking advise on my EL34 amplifier
  70. exchange
  71. CCS in tail of differential phase splitter
  72. Quicksilver 6550A's?
  73. Is this mod worth the effort?
  74. Current sourced heaters
  75. Manual for Tube Technology - Unisis Signature
  76. Valve amp with Dynaudio?
  77. Why can 8W sound as loud as 100W?
  78. Progress of my 813 SE
  79. NOS Tubes
  80. Would it be possible? OTL/OCL KT88?
  81. KT88EH matched quad auction, Fake?!
  82. Interstage attenuation transformer?
  83. HV ON noise
  84. Opinions on Walton Audio 300B Design
  85. Joplin Amp
  86. voltage regulators
  87. CCS for PP Class A output stage?
  88. distortion measurement
  89. Has anybody built the Matthew Reidsma Experimental 45?
  90. Citation II Assembly Manual
  91. what tube preamp DIY kit to match B&W P-5 speakers
  92. heavy duty valve amps.... for PA use....?
  93. Audio Innovation 800 mk2 ? advice?
  94. Tube amps.......AGAIN
  95. driver 6a3
  96. Morgan Jones H/P Amp problems PLEASE HELP
  97. Wad 6550
  98. Ferguson Type: OX170 & Ferguson OP6M Info Needed...
  99. Ebay Stuff - electrolytics for tubies
  100. Pioneer output transformers from the 60's
  101. The future of the Valve.
  102. Trying to understand negative feedback
  103. schematics
  104. Overvolting e-lyts
  105. Bottlehead Paramours done my way
  106. next project: rebuild using fisher 500c trannies
  107. Consonance ELLA
  108. Just a quick Q
  109. Has anyone tried a 6S4A as a 300B driver tube?
  110. Tube Preamp PSU Question
  111. 6N1P for buffer instead of 6DJ8, 6922
  112. quick question about a sovtek 6922
  113. 50.000 $ for a 30W amplifier .
  114. Opinion upon amp life expectancy at 5 hours/day? (theres a catch)
  115. Online Resoucre for Old Tubes?
  116. Comparisons
  117. Conrad Johnson PV10 mod
  118. ETM connected EL/PL509 in T8 OTL-OCL amplifier - how?
  119. good replacement for ECC82
  120. Velleman K4040
  121. $5 SE amp... but is it fried?!
  122. Build with 300B or something else???
  123. Another question
  124. Anybody know these two tubes? DET-9 & Ba
  125. Decent Valve Amp Kit?
  126. distorted hum
  127. Which KT88??
  128. Not connecting grids/anode can hurt tube?
  129. Question for SE Transformer Gurus
  130. Decoupling Paper In Oil capacitor question for KT88 design.
  131. Isabelle Phono Stage
  132. input/driver tube
  133. Best Sounding 6550
  134. toroidal trannies alignment
  135. OTL OCL or Non
  136. How can I use UTC A22 at OPT in pre-amp?
  137. SE Output Transformers
  138. Sq-5
  139. Specs And Curves
  140. Golden Dragon Tube
  141. 2A3 Output Transformer
  142. Powre Transformer for 2A3
  143. Newbie - Is this a good amp?
  144. Reference for DIY AudioCraft in Hong Kong
  145. tubes avalibility
  146. OTL Output Cap Question
  147. Newbie question : Plate CCS
  148. Black Art Single Ended Output Transformers
  149. quick transformer question
  150. CCS for p-p cathode bias ?
  151. Tube output stage for DAC
  152. Reinhöfer Transformers (Germany).
  153. power transformer help !!!
  154. UXCV11 Triode Tube
  155. HVHP shuntreg PCB's available?
  156. Harmon Kardon Ballad Stereo Amplifier
  157. 811A tube internal resistance ?
  158. 8417
  159. Running tubes at lower voltages
  160. EL34-PP building questions
  161. tube 8416 good for audio ???
  162. tube substitution and amp modification guidelines
  163. Real russian tubes anyone??
  164. I'm starting 300B amp
  165. Anyone tried this at home?
  166. push pull bias servo
  167. Sylvania JAN 6L6WGB max plate V?
  168. Repairing valve bases
  169. E55L in triode as driver!
  170. SE Class A with 845or 211. Need a good circuit
  171. st-70 questions... tips?
  172. Biasing a Class A amp information
  173. Holy Grail of Valve Amps
  174. Diff amp driver -> SE output
  175. hipass/lowpass filters
  176. Beginners question(help!)
  177. Capacitor Question /question on cap
  178. Report on 6922 testing
  179. 6ha5
  180. Western electric VT1 tubes
  181. Edge connectors - which to use?
  182. pc mount el34 socket
  183. use MKP capacitor instead of electrolytc for AC filter
  184. 12B4A Linestage
  185. Regulated Heater Supply
  186. Schottky bridge rectifier
  187. 6r-a8???
  188. Plitron Specialist transformer with Unity Coupling
  189. Getting started with tube preamps
  190. Pre-(Line-)Amp with RE074
  191. Interstage Transformer for Experimentation : Hammond 560L
  192. A question regarding Valve fillaments..
  193. Rectified heater voltage problems?
  194. Better than using a resistor as I/O converter
  195. Most responsive tweaker SE9 or 102B
  196. Measurements of tube amps
  197. Nelson Pass-D1-DAC-Output-Stage with tubes ?
  198. High Freq. AC Power for Filaments of 300B SE Power Amp?
  199. Harman Kardon Citation II : love/hate relationships
  200. Happy New Year !
  201. 6c45pi : sonic utopia or sonic hell?
  202. turning a SE 6v6 to a 6bq5 amp
  203. ASL Wave 20
  204. EL32 tube
  205. 50'S GRETSCH tube amp scematics?
  206. "Balanced power"
  207. SE amps opinions for my second amp build needed?
  208. transformer hum
  209. My EAR834 dropped dead! Help!
  210. schmatic for the audio section of A Fisher K-14 chassis
  211. Help me choose a Tube Amp. Project
  212. KT88SE with ECC82
  213. Oscillating Mullard5-20
  214. Distortion in 807 amplifier - please advise
  215. Unity Gain Tube Buffer
  216. Looking for a tweeter amp
  217. Quicksilver?
  218. beginner amp choice question
  219. AC coupling
  220. designing SS power supply
  221. Fender Guitar Amp modifications
  222. Resistors in power supply
  223. Triodes with an extra grid
  224. ECC81 or 83 or 85 or 88 ???
  225. Fisher FM50-B Schematic Needed
  226. Audio Research Database
  227. MJ-Magazine
  228. so i get common tubes free... now i just need a project
  229. current source...
  230. Help with integrated DPP amplifier.
  231. WE old tube question
  232. Looking for a 6550 recommendation...
  233. Counterpoint Manual
  234. Cathode bipass capacitor and transformer impedience
  235. Finally got a tube amp circuit to work!!! (mild debug help needed)
  236. inrush current
  237. Sylvania Chrome top 6SN7 tube
  238. High gain Tube amp problems
  239. 12 volt tube preamp help
  240. Pearl Audio Archives status
  241. Your opinion on 813?
  242. Hi; i am new to tubes
  243. cheapest output transformer for a SE EL84 guitar
  244. Filiment transformer question
  245. Electrolytic Capacitor Insulation
  246. Rca 808
  247. Push pull class A bias question
  248. Twists per inch on filament wiring?
  249. Lynn Olson's web site: AWOL?
  250. Affordable "starter" SE amp

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