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  1. European Triode Festival ETF08: still some places vacant!
  2. Dynaco MK IV Mystery
  3. 6as7/6080 Se Otl
  4. 6GW8 substitute tube 6BM8?
  5. Choke question
  6. Screen driven output stage
  7. 2a3 parallel driven 6sn7 schem
  8. WMD or Big Freakin Power Supply
  9. DIY My tube tester
  10. Help! May have dropped 12sn7 in place of 6sn7
  11. Got a bucketload of tubes, need identification
  12. Help from Allen Wright SuperReg owner
  13. Moscode 600
  14. Signal caps to keep on hand
  15. pin-compatible EF86 alternative?
  16. Capless Parafeed (with apologies to SY)
  17. T Eaton Viking schematics?
  18. S5 K-16LS mods, tweaks?
  19. 5687 fully balanced line stage
  20. Subminiature sockets
  21. What Do I Have Here?
  22. Bad vacuum?
  23. Th. Lösch Phono Amp: Question about IC used & ECC808 to ECC83
  24. Balanced 24V Aikido question
  25. OT question - will it work?
  26. ID Unknown Tube
  27. Time delay start board for tube amps
  28. Hum reduction ideas (again)
  29. Utc Ls-33
  30. K-16ls
  31. Potential valve damping tweak
  32. Conversion Tube PA and Bass Tone
  33. Wanted. Simple EL34 Push Pull Design
  34. PCB advice
  35. Hybrid voltage quadrupler?
  36. my fu80 amp
  37. Pre-amp for BeoMaster
  38. Question re: chokes
  39. Inundated Electrolytics
  40. power transformer recommendation
  41. PS decoupling cap placement
  42. USSR Russian Caps. KBG-MN or K75-24?
  43. #10SE Tested project
  44. schematics help
  45. HF Decoupling Caps questions
  46. 1A7 Heptode (Pentagrid Converter) Audio Preamplifier
  47. Useful power transformer design thread on Analogue
  48. Understanding Simple SE design choices
  49. Hewlet Packard transformer
  50. 6BG6 for KT66
  51. new learning
  52. TV-7D/U Tube setting --- 6550
  53. ecc40 LTP
  54. Latest incarnation of music angel kt88
  55. Tubelab SE oscillation?
  56. AN Shinri schematic wanted
  57. Found a box of old toobs
  58. Aikido line stage - plus phono line stage
  59. Hook up wire?
  60. Irritating problem with soft start
  61. OTL with 6AN5
  62. Mono Blocs Completed...
  63. Magic Eye for solid state Tuner?
  64. a question about drive power
  65. converting BAL to UNBAL using tubes and without transformers
  66. Aikiado question
  67. Top cap tubes+ arc welder
  68. Small beginner amplifier and hello :)
  69. Blackburn MicroTech TechTube(TM) Valves update!
  70. Resistor setup for integrated amp & headphones?
  71. Brook 2A3 PP amp ID help
  72. heater voltage
  73. kobayashi 300B push-pull
  74. Triode strapping a tetrode...
  75. Any info on 3572 Half wave Rectier
  76. Question Conrad Johnson reg. psu?
  77. Another 300B SE
  78. 7-pin Low Rp tube
  79. S-5 K-16LS Kit arrived in Germany !!
  80. Transcendar RIP?
  81. 6N6P in an Aikido?
  82. Were can i bay a Telefunken 6ak5 ?
  83. SE 245 driverstage
  84. 12ax7 srpp dac output
  85. How this circuit works (Baby Huey type)
  86. New tubeamp
  87. Snubber caps
  88. Counterpoint sa220
  89. Resistor before tube rectifier
  90. TCJ Push-Pull calculator v2
  91. Heathkit AG-9A audio generator schematic !!!
  92. Sources for James Transformers
  93. High Voltage Soldering (IPC Standards?)
  94. Speakers for Flea Powered Amps <1.5W
  95. Opinions on Allen & Bradley Carbon Composite resistors
  96. wich tube is best for the yaqin cd buffer ?
  97. Mikael Abdellah's SE KT88 bass response + tightness
  98. How best to use the PSU xformer I have
  99. 6L6GC AB2 Amp
  100. Kofi Annan in: "I'd Like Me a Mic Pre!"
  101. Too much gain - help with changing driver tube.
  102. EL95 SE schematic wanted
  103. test settings hickok i177B for 5ar4/gz34
  104. good value (i.e. cheap) OPT in uk?
  105. Input xfmr, diff stage, CCS questions
  106. Theoretical OPT question
  107. input/driver stage for kt88/6550
  108. thyratron switching
  109. Making component choices (6V6/EL84 PP)
  110. Which socket for a 5Y3??
  111. using #47 in p-p
  112. 6463-12b4a srpp?
  113. Need some help identifying which tubes are suitable
  114. Tube Priceing
  115. edcor output transformer advice
  116. Non top-cap tubes for plasma tweeters
  117. Intermittent Static on ARC REF 3 Preamp
  118. Have you guys seen this yet?
  119. ECC88 heater overvoltage damage?
  120. Recommended designs
  121. Aikido Phono PCB Modifications
  122. Need Power supply advice for Andreas 845
  123. Phonodude question
  124. Power Supply for Aikido Phono Pre
  125. Completed New Combo Amplifier
  126. Want to Build my first Tube Amp
  127. single tube amp ~pspice problem
  128. Modding a tonebone to switch to pentode triode operation?Can this be done??
  129. Relyon KT88/EL34 SE issue, schem attached
  130. Search 35T Schematic
  131. Hickok 600A, shattered mercury rectifier...
  132. Pete Millett Low-Mu Triode Preamp
  133. First scope/buying oscilloscope probes
  134. thyratron rectifier
  135. Need help making some choices on what to build
  136. A2 curves and curvecaptor.
  137. damper diodes ....
  138. Different Rectifier Warmup Times
  139. stupid question of the day
  140. Fisher 400 Output Transformers
  141. Tube amp repair
  142. Hi-end 845 with only two stage
  143. PL519 Heaters in series blow fuse
  144. Looking for parts to tinker with
  145. KT88 Recommendations?
  146. Anyone Interested in Pete Millett Hybrid Amp PCB's?
  147. Mirror of Steve Bench's site
  148. Quick Question About RCA Input
  149. Built an amp kit!
  150. Holy Smoking Toroid Winder
  151. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  152. why do tubes have a treble lost ???
  153. Low Frequency Mains Noise
  154. Help modifying circuit
  155. Ever heard sth like this?
  156. dual volume control
  157. Need DIY help in Los Angeles area with tube preamp
  158. 6c19p se otl
  159. pt
  160. "Killer" Screen Driven Push-Pull Amp Initial Queries
  161. fixed vs. cathode bias
  162. RH84 Push pull?
  163. Cheapfield project
  164. heater connection problem
  165. What to do with this PP OPT?
  166. Question about Bridging
  167. White Fuzzy furry growth..........TV-2C/U
  168. Tweaks for 845 Power amp
  169. the aardvark grows a spud!
  170. WEST output transformers?
  171. Tube Buffer Success!
  172. Lafayette LA-234 Amplifier
  173. filter choke voltage rating
  174. Dealing with Mr. Miller (phono)
  175. Western Electric plant
  176. Pentod PP - too much NFB needed to sound nice?
  177. Lf351 replacement for Curcio Daniel I
  178. How bad is grounding one side of AC filament ?
  179. New matched tubes - where to use them
  180. Glow Tube (0B2) Help
  181. Bose 901 + Tube amps
  182. Tube tape NR
  183. Ming Da MC-34B fuse value?
  184. Potentiometer with bass boost pin for Simple SE?
  185. Volume pot for TubelabSE 300B recommendation ?
  186. (help) Make a 13.8V 50 Amp continueous current
  187. Toy amp.
  188. Looking to build a 25-30 WPC Push Pull amp - Need Help
  189. Quicksilver 8417 question
  190. GSM interference
  191. &lt;WTA&gt;Tube biased by LED
  192. source for knobs
  193. Lundahl 4-30 Build
  194. Anyone Have Info On Triode Board For MK IV?
  195. I would like to DIY Marantz model9
  196. 813se DIY OPT problems
  197. Got a big output trafo I want to use.
  198. building S5 k-amp
  199. EL84 max power for HiFi Amp
  200. Question about cathode bypass capacitor:
  201. Curcio Daniel II builders?
  202. 13E1 SE design
  203. Booster Amp for low powered SET
  204. Soft starting the rectifier
  205. Tube preamp components help
  206. My own version of the EAR 834P Clone
  207. Eico HF86 modifications
  208. Heaters and centre tap
  209. DHT's, fixed bias, sharred filament supply
  210. Do New JJ GZ34's have less B+ Drop?
  211. Grounded, Floating, or Thermistor-To-Case for Center Tap
  212. Hi, looking for some info on tube amplifier design basics
  213. Nifty little (cheap ) transformer for bias supply
  214. Problems with my ARC VT 130SE
  215. Telefunken V69B - Tube Amp
  216. HV Regulator
  217. EL95 mini SE
  218. NOS vs. Chinese Plate Caps
  219. TL783 regulated B+ 250V PSU schematic
  220. 6922 tube buffer
  221. 300B grid resistance
  222. 6AU6 Aikido in Triode mode?
  223. brown crud?
  224. Steve Bench's tube crossover
  225. Wierd striation on 6L6GC plate
  226. LT1085-based regulated 6.3v heater supply
  227. Are these tubes cooked?
  228. New Build Power Up Advice
  229. Choosing the right mullard design to match the Foreplay III and Ariels
  230. Dumb question on Coupling cap ratings...
  231. European Triode Festival 2008 - couple of seats left
  232. Building PRETOR toroid preamp
  233. ACT2 - ConradJohnson by 818design
  234. PS questions?
  235. Frank's Tube Database Down?
  236. Anybody try Euro DHTs like RE134, RE304 etc??
  237. Need help...again :)
  238. idea for a simple bias servo for AB PP
  239. GU-32/GI-30 tube PP amp
  240. Switch-mode PSU for tube heaters?
  241. Hammond Primary Lead color is wrong?
  242. A newbie need helps on the very 1st tube PreAmp
  243. why does 12u7 need certain amount of gain to stop hum 120???
  244. EL34 Pushpull imbalance
  245. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  246. Rozenblit Grounded Grid Cascode Pho Preamp Project
  247. Driving the kt88/6550 in set mode
  248. 6550a question for engineer?
  249. Yl1260
  250. Parts layout diagram for SE amp

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