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  1. Aikido line stage - plus phono line stage
  2. Irritating problem with soft start
  3. OTL with 6AN5
  4. Mono Blocs Completed...
  5. Magic Eye for solid state Tuner?
  6. a question about drive power
  7. converting BAL to UNBAL using tubes and without transformers
  8. Aikiado question
  9. Top cap tubes+ arc welder
  10. Small beginner amplifier and hello :)
  11. Blackburn MicroTech TechTube(TM) Valves update!
  12. Resistor setup for integrated amp & headphones?
  13. Brook 2A3 PP amp ID help
  14. heater voltage
  15. kobayashi 300B push-pull
  16. Triode strapping a tetrode...
  17. Any info on 3572 Half wave Rectier
  18. Question Conrad Johnson reg. psu?
  19. Another 300B SE
  20. 7-pin Low Rp tube
  21. S-5 K-16LS Kit arrived in Germany !!
  22. Transcendar RIP?
  23. 6N6P in an Aikido?
  24. Were can i bay a Telefunken 6ak5 ?
  25. SE 245 driverstage
  26. 12ax7 srpp dac output
  27. How this circuit works (Baby Huey type)
  28. New tubeamp
  29. Snubber caps
  30. Counterpoint sa220
  31. Resistor before tube rectifier
  32. TCJ Push-Pull calculator v2
  33. Sources for James Transformers
  34. High Voltage Soldering (IPC Standards?)
  35. Speakers for Flea Powered Amps <1.5W
  36. wich tube is best for the yaqin cd buffer ?
  37. Mikael Abdellah's SE KT88 bass response + tightness
  38. How best to use the PSU xformer I have
  39. 6L6GC AB2 Amp
  40. Too much gain - help with changing driver tube.
  41. EL95 SE schematic wanted
  42. good value (i.e. cheap) OPT in uk?
  43. Input xfmr, diff stage, CCS questions
  44. Theoretical OPT question
  45. input/driver stage for kt88/6550
  46. thyratron switching
  47. Making component choices (6V6/EL84 PP)
  48. Which socket for a 5Y3??
  49. using #47 in p-p
  50. 6463-12b4a srpp?
  51. Need some help identifying which tubes are suitable
  52. Tube Priceing
  53. edcor output transformer advice
  54. Non top-cap tubes for plasma tweeters
  55. Intermittent Static on ARC REF 3 Preamp
  56. Have you guys seen this yet?
  57. ECC88 heater overvoltage damage?
  58. Recommended designs
  59. Aikido Phono PCB Modifications
  60. Need Power supply advice for Andreas 845
  61. Phonodude question
  62. Power Supply for Aikido Phono Pre
  63. Completed New Combo Amplifier
  64. Want to Build my first Tube Amp
  65. single tube amp ~pspice problem
  66. Modding a tonebone to switch to pentode triode operation?Can this be done??
  67. Relyon KT88/EL34 SE issue, schem attached
  68. Search 35T Schematic
  69. Pete Millett Low-Mu Triode Preamp
  70. thyratron rectifier
  71. Need help making some choices on what to build
  72. A2 curves and curvecaptor.
  73. damper diodes ....
  74. Different Rectifier Warmup Times
  75. stupid question of the day
  76. Fisher 400 Output Transformers
  77. Tube amp repair
  78. Hi-end 845 with only two stage
  79. PL519 Heaters in series blow fuse
  80. Looking for parts to tinker with
  81. KT88 Recommendations?
  82. Anyone Interested in Pete Millett Hybrid Amp PCB's?
  83. Mirror of Steve Bench's site
  84. Quick Question About RCA Input
  85. Built an amp kit!
  86. Holy Smoking Toroid Winder
  87. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  88. why do tubes have a treble lost ???
  89. Low Frequency Mains Noise
  90. Help modifying circuit
  91. Ever heard sth like this?
  92. dual volume control
  93. Need DIY help in Los Angeles area with tube preamp
  94. 6c19p se otl
  95. pt
  96. "Killer" Screen Driven Push-Pull Amp Initial Queries
  97. fixed vs. cathode bias
  98. RH84 Push pull?
  99. Cheapfield project
  100. heater connection problem
  101. What to do with this PP OPT?
  102. Question about Bridging
  103. White Fuzzy furry growth..........TV-2C/U
  104. Tweaks for 845 Power amp
  105. the aardvark grows a spud!
  106. WEST output transformers?
  107. Tube Buffer Success!
  108. Lafayette LA-234 Amplifier
  109. filter choke voltage rating
  110. Dealing with Mr. Miller (phono)
  111. Western Electric plant
  112. Pentod PP - too much NFB needed to sound nice?
  113. Lf351 replacement for Curcio Daniel I
  114. How bad is grounding one side of AC filament ?
  115. New matched tubes - where to use them
  116. Glow Tube (0B2) Help
  117. Bose 901 + Tube amps
  118. Tube tape NR
  119. Ming Da MC-34B fuse value?
  120. Volume pot for TubelabSE 300B recommendation ?
  121. (help) Make a 13.8V 50 Amp continueous current
  122. Toy amp.
  123. Looking to build a 25-30 WPC Push Pull amp - Need Help
  124. Quicksilver 8417 question
  125. GSM interference
  126. &lt;WTA&gt;Tube biased by LED
  127. source for knobs
  128. Lundahl 4-30 Build
  129. Anyone Have Info On Triode Board For MK IV?
  130. I would like to DIY Marantz model9
  131. 813se DIY OPT problems
  132. Got a big output trafo I want to use.
  133. building S5 k-amp
  134. EL84 max power for HiFi Amp
  135. Question about cathode bypass capacitor:
  136. Curcio Daniel II builders?
  137. 13E1 SE design
  138. Booster Amp for low powered SET
  139. Soft starting the rectifier
  140. Tube preamp components help
  141. My own version of the EAR 834P Clone
  142. Eico HF86 modifications
  143. Heaters and centre tap
  144. DHT's, fixed bias, sharred filament supply
  145. Do New JJ GZ34's have less B+ Drop?
  146. Grounded, Floating, or Thermistor-To-Case for Center Tap
  147. Hi, looking for some info on tube amplifier design basics
  148. Nifty little (cheap ) transformer for bias supply
  149. Problems with my ARC VT 130SE
  150. Telefunken V69B - Tube Amp
  151. HV Regulator
  152. EL95 mini SE
  153. NOS vs. Chinese Plate Caps
  154. TL783 regulated B+ 250V PSU schematic
  155. 6922 tube buffer
  156. 300B grid resistance
  157. 6AU6 Aikido in Triode mode?
  158. brown crud?
  159. Steve Bench's tube crossover
  160. Wierd striation on 6L6GC plate
  161. LT1085-based regulated 6.3v heater supply
  162. Are these tubes cooked?
  163. New Build Power Up Advice
  164. Choosing the right mullard design to match the Foreplay III and Ariels
  165. Dumb question on Coupling cap ratings...
  166. European Triode Festival 2008 - couple of seats left
  167. Building PRETOR toroid preamp
  168. ACT2 - ConradJohnson by 818design
  169. PS questions?
  170. Frank's Tube Database Down?
  171. Anybody try Euro DHTs like RE134, RE304 etc??
  172. Need help...again :)
  173. idea for a simple bias servo for AB PP
  174. GU-32/GI-30 tube PP amp
  175. Switch-mode PSU for tube heaters?
  176. Hammond Primary Lead color is wrong?
  177. A newbie need helps on the very 1st tube PreAmp
  178. why does 12u7 need certain amount of gain to stop hum 120???
  179. EL34 Pushpull imbalance
  180. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  181. Rozenblit Grounded Grid Cascode Pho Preamp Project
  182. Driving the kt88/6550 in set mode
  183. 6550a question for engineer?
  184. Yl1260
  185. Parts layout diagram for SE amp
  186. Da 42 Triode
  187. Bogen CHB100 Power Supply Question
  188. Testing of russian tubes on B&K 747B
  189. VR150 use
  190. First Valve DIY Project
  191. I'm having grid1 current in EL34
  192. anyone ever built a tube mixer similar to the RCA Living Stereo type??
  193. SEPTOR AT-amp (Anti-Triode) being built
  194. Sophia Electric el34 mods/upgrades
  195. Looking to build....
  196. Bias resistor for source follower driver
  197. PL 519 electrical characteristics
  198. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  199. My 6AS7G Fuse Link Checker
  200. Anyone ever had issues with One Electron?
  201. 35% off sale at RadioDaze
  202. phase splitter with Tr ?
  203. Zenith stereo, EL84 SE. What to do...
  204. Free TVA-1 rev.3 schematic
  205. Bat Vk-60
  206. Trouble with amp 6V6
  207. 5-125 UL curves anyone?
  208. Mod it or scrap it?
  209. Bogen M330
  210. 1st Tube Amp - What to build?
  211. 6J5 weird phase inverter
  212. swinging CCS PP output stage
  213. Varying 2 tube amp characteristics: SE treble and richness
  214. Jadis Defy 7 Schematic
  215. microphonic sub-miniature tubes?
  216. Transformer distortion (THD)
  217. Options for replacing EF86? E180F?
  218. changing an integrated tube amp to a power amp
  219. Nice tube test supply
  220. Looking for 300B 2.5V heater vendor
  221. Cap to bypass bias battery
  222. 2A3 SE parafeed with PP-transformer
  223. Preamp Voltages
  224. TVA-1 "Export" circuit/schematic?
  225. 12ax7 series is this correct??
  226. Yet Another Phono Stage Suggestions Thread
  227. 15% off sale at Soniccraft
  228. Sizing Coupling Capacitors
  229. budget xformer for 829B pentode mode PP (class AB) ?
  230. preamp layout suggestions please
  231. Transofrmer secondaries
  232. please help 407a
  233. OPT Grounding / Crosstalk
  234. SE With shared Rk in output
  235. Unsolved problem EL34/12AT7/5AR4
  236. Radford STA25 service UK
  237. My tube DIY Web page, translate into English
  238. suggestion about AIKIDO PRE
  239. Hashimoto A-105 - 6S4A
  240. Looking For Counterpoint SA2000 Schematic
  241. Where do you put the standby switch
  242. Operating point for 6GK5
  243. Audio Research St-70-c3
  244. Help identifying tube amp
  245. Ed8000
  246. power suply for Pre &amp; Phono Use tube 6BM8
  247. ESLDD with "anti-triode"
  248. Schematics border patrol psu
  249. Bias supply idea
  250. dynaco st 70 c3

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