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  1. Would it be possible? OTL/OCL KT88?
  2. KT88EH matched quad auction, Fake?!
  3. Interstage attenuation transformer?
  4. HV ON noise
  5. Opinions on Walton Audio 300B Design
  6. Joplin Amp
  7. voltage regulators
  8. CCS for PP Class A output stage?
  9. distortion measurement
  10. Has anybody built the Matthew Reidsma Experimental 45?
  11. Citation II Assembly Manual
  12. what tube preamp DIY kit to match B&W P-5 speakers
  13. heavy duty valve amps.... for PA use....?
  14. Audio Innovation 800 mk2 ? advice?
  15. Tube amps.......AGAIN
  16. driver 6a3
  17. Morgan Jones H/P Amp problems PLEASE HELP
  18. Wad 6550
  19. Ferguson Type: OX170 & Ferguson OP6M Info Needed...
  20. Ebay Stuff - electrolytics for tubies
  21. Pioneer output transformers from the 60's
  22. The future of the Valve.
  23. Trying to understand negative feedback
  24. schematics
  25. Overvolting e-lyts
  26. Bottlehead Paramours done my way
  27. next project: rebuild using fisher 500c trannies
  28. Consonance ELLA
  29. Just a quick Q
  30. Has anyone tried a 6S4A as a 300B driver tube?
  31. Tube Preamp PSU Question
  32. 6N1P for buffer instead of 6DJ8, 6922
  33. quick question about a sovtek 6922
  34. 50.000 $ for a 30W amplifier .
  35. Opinion upon amp life expectancy at 5 hours/day? (theres a catch)
  36. Online Resoucre for Old Tubes?
  37. Comparisons
  38. Conrad Johnson PV10 mod
  39. ETM connected EL/PL509 in T8 OTL-OCL amplifier - how?
  40. good replacement for ECC82
  41. Velleman K4040
  42. $5 SE amp... but is it fried?!
  43. Build with 300B or something else???
  44. Another question
  45. Anybody know these two tubes? DET-9 & Ba
  46. Decent Valve Amp Kit?
  47. distorted hum
  48. Which KT88??
  49. Not connecting grids/anode can hurt tube?
  50. Question for SE Transformer Gurus
  51. Decoupling Paper In Oil capacitor question for KT88 design.
  52. Isabelle Phono Stage
  53. input/driver tube
  54. Best Sounding 6550
  55. toroidal trannies alignment
  56. OTL OCL or Non
  57. How can I use UTC A22 at OPT in pre-amp?
  58. SE Output Transformers
  59. Sq-5
  60. Specs And Curves
  61. Golden Dragon Tube
  62. 2A3 Output Transformer
  63. Powre Transformer for 2A3
  64. Newbie - Is this a good amp?
  65. Reference for DIY AudioCraft in Hong Kong
  66. tubes avalibility
  67. OTL Output Cap Question
  68. Newbie question : Plate CCS
  69. Black Art Single Ended Output Transformers
  70. quick transformer question
  71. CCS for p-p cathode bias ?
  72. Tube output stage for DAC
  73. Reinhöfer Transformers (Germany).
  74. power transformer help !!!
  75. UXCV11 Triode Tube
  76. HVHP shuntreg PCB's available?
  77. Harmon Kardon Ballad Stereo Amplifier
  78. 811A tube internal resistance ?
  79. 8417
  80. Running tubes at lower voltages
  81. EL34-PP building questions
  82. tube 8416 good for audio ???
  83. tube substitution and amp modification guidelines
  84. Real russian tubes anyone??
  85. I'm starting 300B amp
  86. Anyone tried this at home?
  87. push pull bias servo
  88. Sylvania JAN 6L6WGB max plate V?
  89. Repairing valve bases
  90. E55L in triode as driver!
  91. SE Class A with 845or 211. Need a good circuit
  92. st-70 questions... tips?
  93. Biasing a Class A amp information
  94. Holy Grail of Valve Amps
  95. Diff amp driver -> SE output
  96. hipass/lowpass filters
  97. Beginners question(help!)
  98. Capacitor Question /question on cap
  99. Report on 6922 testing
  100. 6ha5
  101. Western electric VT1 tubes
  102. Edge connectors - which to use?
  103. pc mount el34 socket
  104. use MKP capacitor instead of electrolytc for AC filter
  105. 12B4A Linestage
  106. Regulated Heater Supply
  107. Schottky bridge rectifier
  108. 6r-a8???
  109. Plitron Specialist transformer with Unity Coupling
  110. Getting started with tube preamps
  111. Pre-(Line-)Amp with RE074
  112. Interstage Transformer for Experimentation : Hammond 560L
  113. A question regarding Valve fillaments..
  114. Rectified heater voltage problems?
  115. Better than using a resistor as I/O converter
  116. Most responsive tweaker SE9 or 102B
  117. Measurements of tube amps
  118. Nelson Pass-D1-DAC-Output-Stage with tubes ?
  119. High Freq. AC Power for Filaments of 300B SE Power Amp?
  120. Harman Kardon Citation II : love/hate relationships
  121. Happy New Year !
  122. 6c45pi : sonic utopia or sonic hell?
  123. turning a SE 6v6 to a 6bq5 amp
  124. ASL Wave 20
  125. EL32 tube
  126. 50'S GRETSCH tube amp scematics?
  127. "Balanced power"
  128. SE amps opinions for my second amp build needed?
  129. transformer hum
  130. My EAR834 dropped dead! Help!
  131. schmatic for the audio section of A Fisher K-14 chassis
  132. Help me choose a Tube Amp. Project
  133. KT88SE with ECC82
  134. Oscillating Mullard5-20
  135. Distortion in 807 amplifier - please advise
  136. Unity Gain Tube Buffer
  137. Looking for a tweeter amp
  138. Quicksilver?
  139. beginner amp choice question
  140. AC coupling
  141. designing SS power supply
  142. Fender Guitar Amp modifications
  143. Resistors in power supply
  144. Triodes with an extra grid
  145. ECC81 or 83 or 85 or 88 ???
  146. Fisher FM50-B Schematic Needed
  147. Audio Research Database
  148. MJ-Magazine
  149. so i get common tubes free... now i just need a project
  150. current source...
  151. Help with integrated DPP amplifier.
  152. WE old tube question
  153. Looking for a 6550 recommendation...
  154. Counterpoint Manual
  155. Cathode bipass capacitor and transformer impedience
  156. Finally got a tube amp circuit to work!!! (mild debug help needed)
  157. inrush current
  158. Sylvania Chrome top 6SN7 tube
  159. High gain Tube amp problems
  160. 12 volt tube preamp help
  161. Pearl Audio Archives status
  162. Your opinion on 813?
  163. Hi; i am new to tubes
  164. cheapest output transformer for a SE EL84 guitar
  165. Filiment transformer question
  166. Electrolytic Capacitor Insulation
  167. Rca 808
  168. Push pull class A bias question
  169. Twists per inch on filament wiring?
  170. Lynn Olson's web site: AWOL?
  171. Affordable "starter" SE amp
  172. SRPP is....?
  173. guitar amp input jack help
  174. interstage coupling
  175. Where are the 833 amps?
  176. E283cc
  177. OTL design recommendation? (6C33C maybe?)
  178. 6AU4GTA as High voltage rectifier
  179. Question
  180. where can I buy fully assembled tube amplifiers here in the U.S
  181. cryod 6922s
  182. Speaker Impedance
  183. Parallel, single-ended Pentode. How?
  184. Electro Harmonix KT90?
  185. I have 1 pair of 1J6GT
  186. Mullard 5-20 again
  187. B+ power supply
  188. datasheet request
  189. Good tubes for Luxman pre-amp
  190. What is PTT216?
  191. E810F filter buffert in dac Q
  192. ECL82/6BM8 as rectifier?
  193. Mesa Boogie Mark IV
  194. Replacement for 5R4
  195. Replacement capacitors?
  196. 6AS7 Svetlana schematics?
  197. 10/10y/801
  198. Double checking my PSU and filter question.
  199. 12B4A tube amplifier with output transformers
  200. Learned a lesson today
  201. What is a Hickok 533 worth?
  202. Kailin El34
  203. Substitute for 5842/417A
  204. Air travel with DIY tube gear.
  205. 6C45 211 Amp
  206. Lowering gain in 12AX7 SRPP preamp
  207. tube amp/speaker match
  208. bifilar output trans in single ended amp
  209. Just to introduce myself
  210. i finished my first amp
  211. Citation II output transformers
  212. type 27 pre
  213. 6072 replacement, pls help
  214. Zen SE84cs transfomer upgrade? Plitron Toroidal?
  215. Has anyone on this forum heard a gainclone?
  216. EL 34 parallel push pull (quad)
  217. K&K Audio Balanced Linestage
  218. Room resonances
  219. EL-84 Integrated amp Project
  220. more newbie questions
  221. copland CVA 306
  222. Mullard 5-20 schematics
  223. Tube crossover for sub?
  224. Simple tube EQ?
  225. Just a few questions
  226. Tube Preamp for Apox Volume Control
  227. Hammond M3 Tube Amp Project
  228. Ultra linear g2-anode suppress
  229. Vacuum State Electronics FVP5A
  230. Mercury model 2000 tube tester
  231. Schematic of ID of this 6V6/6U8 stereo amp
  232. Operating points for #37 triode
  233. simple line buffer
  234. preamplifier with output transformers
  235. Preamp for guitar - low distortion
  236. F.S:unused tube measurer
  237. Nina Mu Stage Preamp - Circuit and Details
  238. Why are 6V6G(T)'s always black inside?
  239. Please clear this up 805 or pcl805
  240. What happend to svetlana tubes?
  241. penta
  242. 6V6 guitar amp...
  243. Phase splitters: Constant current sources
  244. What do you think bout that???
  245. tube amp recommendation
  246. Want a tube amp. Tell me what should get...
  247. The lego-technics transformer winding setup
  248. Toroid transformers
  249. Hempel
  250. Help on SRPP line amp!

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