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  1. Irritating problem with soft start
  2. OTL with 6AN5
  3. Mono Blocs Completed...
  4. Magic Eye for solid state Tuner?
  5. a question about drive power
  6. converting BAL to UNBAL using tubes and without transformers
  7. Aikiado question
  8. Top cap tubes+ arc welder
  9. Small beginner amplifier and hello :)
  10. Blackburn MicroTech TechTube(TM) Valves update!
  11. Resistor setup for integrated amp & headphones?
  12. Brook 2A3 PP amp ID help
  13. heater voltage
  14. kobayashi 300B push-pull
  15. Triode strapping a tetrode...
  16. Any info on 3572 Half wave Rectier
  17. Question Conrad Johnson reg. psu?
  18. Another 300B SE
  19. 7-pin Low Rp tube
  20. S-5 K-16LS Kit arrived in Germany !!
  21. Transcendar RIP?
  22. 6N6P in an Aikido?
  23. Were can i bay a Telefunken 6ak5 ?
  24. SE 245 driverstage
  25. 12ax7 srpp dac output
  26. How this circuit works (Baby Huey type)
  27. New tubeamp
  28. Snubber caps
  29. Counterpoint sa220
  30. Resistor before tube rectifier
  31. TCJ Push-Pull calculator v2
  32. Heathkit AG-9A audio generator schematic !!!
  33. Sources for James Transformers
  34. High Voltage Soldering (IPC Standards?)
  35. Speakers for Flea Powered Amps <1.5W
  36. Opinions on Allen & Bradley Carbon Composite resistors
  37. wich tube is best for the yaqin cd buffer ?
  38. Mikael Abdellah's SE KT88 bass response + tightness
  39. How best to use the PSU xformer I have
  40. 6L6GC AB2 Amp
  41. Kofi Annan in: "I'd Like Me a Mic Pre!"
  42. Too much gain - help with changing driver tube.
  43. EL95 SE schematic wanted
  44. test settings hickok i177B for 5ar4/gz34
  45. Gibson Ga-20 rvt reverb problems
  46. good value (i.e. cheap) OPT in uk?
  47. Input xfmr, diff stage, CCS questions
  48. Theoretical OPT question
  49. input/driver stage for kt88/6550
  50. thyratron switching
  51. Making component choices (6V6/EL84 PP)
  52. Which socket for a 5Y3??
  53. using #47 in p-p
  54. 6463-12b4a srpp?
  55. Need some help identifying which tubes are suitable
  56. Tube Priceing
  57. edcor output transformer advice
  58. Non top-cap tubes for plasma tweeters
  59. Intermittent Static on ARC REF 3 Preamp
  60. Have you guys seen this yet?
  61. ECC88 heater overvoltage damage?
  62. Recommended designs
  63. Aikido Phono PCB Modifications
  64. Need Power supply advice for Andreas 845
  65. Phonodude question
  66. Power Supply for Aikido Phono Pre
  67. Completed New Combo Amplifier
  68. Want to Build my first Tube Amp
  69. single tube amp ~pspice problem
  70. Modding a tonebone to switch to pentode triode operation?Can this be done??
  71. Relyon KT88/EL34 SE issue, schem attached
  72. Search 35T Schematic
  73. Hickok 600A, shattered mercury rectifier...
  74. Pete Millett Low-Mu Triode Preamp
  75. First scope/buying oscilloscope probes
  76. thyratron rectifier
  77. Need help making some choices on what to build
  78. A2 curves and curvecaptor.
  79. damper diodes ....
  80. Different Rectifier Warmup Times
  81. stupid question of the day
  82. Fisher 400 Output Transformers
  83. Tube amp repair
  84. Hi-end 845 with only two stage
  85. PL519 Heaters in series blow fuse
  86. Looking for parts to tinker with
  87. KT88 Recommendations?
  88. Anyone Interested in Pete Millett Hybrid Amp PCB's?
  89. Mirror of Steve Bench's site
  90. Quick Question About RCA Input
  91. Built an amp kit!
  92. Holy Smoking Toroid Winder
  93. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  94. why do tubes have a treble lost ???
  95. Low Frequency Mains Noise
  96. Help modifying circuit
  97. Ever heard sth like this?
  98. dual volume control
  99. Need DIY help in Los Angeles area with tube preamp
  100. 6c19p se otl
  101. pt
  102. "Killer" Screen Driven Push-Pull Amp Initial Queries
  103. fixed vs. cathode bias
  104. RH84 Push pull?
  105. Cheapfield project
  106. heater connection problem
  107. What to do with this PP OPT?
  108. Question about Bridging
  109. White Fuzzy furry growth..........TV-2C/U
  110. Tweaks for 845 Power amp
  111. the aardvark grows a spud!
  112. WEST output transformers?
  113. Tube Buffer Success!
  114. Lafayette LA-234 Amplifier
  115. filter choke voltage rating
  116. Dealing with Mr. Miller (phono)
  117. Western Electric plant
  118. Pentod PP - too much NFB needed to sound nice?
  119. Lf351 replacement for Curcio Daniel I
  120. How bad is grounding one side of AC filament ?
  121. New matched tubes - where to use them
  122. Glow Tube (0B2) Help
  123. Bose 901 + Tube amps
  124. Tube tape NR
  125. Ming Da MC-34B fuse value?
  126. Potentiometer with bass boost pin for Simple SE?
  127. Volume pot for TubelabSE 300B recommendation ?
  128. (help) Make a 13.8V 50 Amp continueous current
  129. Toy amp.
  130. Looking to build a 25-30 WPC Push Pull amp - Need Help
  131. Quicksilver 8417 question
  132. GSM interference
  133. &lt;WTA&gt;Tube biased by LED
  134. source for knobs
  135. Lundahl 4-30 Build
  136. Anyone Have Info On Triode Board For MK IV?
  137. I would like to DIY Marantz model9
  138. 813se DIY OPT problems
  139. Got a big output trafo I want to use.
  140. building S5 k-amp
  141. EL84 max power for HiFi Amp
  142. Question about cathode bypass capacitor:
  143. Curcio Daniel II builders?
  144. 13E1 SE design
  145. Booster Amp for low powered SET
  146. Soft starting the rectifier
  147. Tube preamp components help
  148. My own version of the EAR 834P Clone
  149. Eico HF86 modifications
  150. Heaters and centre tap
  151. DHT's, fixed bias, sharred filament supply
  152. Do New JJ GZ34's have less B+ Drop?
  153. Grounded, Floating, or Thermistor-To-Case for Center Tap
  154. Hi, looking for some info on tube amplifier design basics
  155. Nifty little (cheap ) transformer for bias supply
  156. Problems with my ARC VT 130SE
  157. Telefunken V69B - Tube Amp
  158. HV Regulator
  159. EL95 mini SE
  160. NOS vs. Chinese Plate Caps
  161. TL783 regulated B+ 250V PSU schematic
  162. Tube buffer for electronic keyboards used in a band?
  163. 6922 tube buffer
  164. 300B grid resistance
  165. 6AU6 Aikido in Triode mode?
  166. brown crud?
  167. Steve Bench's tube crossover
  168. Bogen M120 bass guitar amp coversion
  169. Wierd striation on 6L6GC plate
  170. LT1085-based regulated 6.3v heater supply
  171. Are these tubes cooked?
  172. New Build Power Up Advice
  173. Mic pre idea
  174. Choosing the right mullard design to match the Foreplay III and Ariels
  175. Dumb question on Coupling cap ratings...
  176. European Triode Festival 2008 - couple of seats left
  177. Building PRETOR toroid preamp
  178. ACT2 - ConradJohnson by 818design
  179. PS questions?
  180. Frank's Tube Database Down?
  181. Anybody try Euro DHTs like RE134, RE304 etc??
  182. Need help...again :)
  183. idea for a simple bias servo for AB PP
  184. GU-32/GI-30 tube PP amp
  185. Switch-mode PSU for tube heaters?
  186. Hammond Primary Lead color is wrong?
  187. A newbie need helps on the very 1st tube PreAmp
  188. why does 12u7 need certain amount of gain to stop hum 120???
  189. EL34 Pushpull imbalance
  190. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  191. Rozenblit Grounded Grid Cascode Pho Preamp Project
  192. Driving the kt88/6550 in set mode
  193. 6550a question for engineer?
  194. Yl1260
  195. Parts layout diagram for SE amp
  196. Da 42 Triode
  197. Bogen CHB100 Power Supply Question
  198. Testing of russian tubes on B&K 747B
  199. VR150 use
  200. First Valve DIY Project
  201. I'm having grid1 current in EL34
  202. anyone ever built a tube mixer similar to the RCA Living Stereo type??
  203. SEPTOR AT-amp (Anti-Triode) being built
  204. Sophia Electric el34 mods/upgrades
  205. Looking to build....
  206. Bias resistor for source follower driver
  207. PL 519 electrical characteristics
  208. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  209. My 6AS7G Fuse Link Checker
  210. Anyone ever had issues with One Electron?
  211. 35% off sale at RadioDaze
  212. phase splitter with Tr ?
  213. Chasing my Simple SE problem...
  214. Zenith stereo, EL84 SE. What to do...
  215. Free TVA-1 rev.3 schematic
  216. Bat Vk-60
  217. Trouble with amp 6V6
  218. 5-125 UL curves anyone?
  219. Mod it or scrap it?
  220. Bogen M330
  221. 1st Tube Amp - What to build?
  222. 6J5 weird phase inverter
  223. swinging CCS PP output stage
  224. Varying 2 tube amp characteristics: SE treble and richness
  225. Jadis Defy 7 Schematic
  226. microphonic sub-miniature tubes?
  227. Transformer distortion (THD)
  228. Options for replacing EF86? E180F?
  229. changing an integrated tube amp to a power amp
  230. Nice tube test supply
  231. Looking for 300B 2.5V heater vendor
  232. Cap to bypass bias battery
  233. 2A3 SE parafeed with PP-transformer
  234. Preamp Voltages
  235. TVA-1 "Export" circuit/schematic?
  236. 12ax7 series is this correct??
  237. Yet Another Phono Stage Suggestions Thread
  238. 15% off sale at Soniccraft
  239. Bias Mode Switching Question (guitar Amp)
  240. Sizing Coupling Capacitors
  241. budget xformer for 829B pentode mode PP (class AB) ?
  242. preamp layout suggestions please
  243. Capacitors and hype!
  244. Transofrmer secondaries
  245. please help 407a
  246. OPT Grounding / Crosstalk
  247. SE With shared Rk in output
  248. Unsolved problem EL34/12AT7/5AR4
  249. Radford STA25 service UK
  250. My tube DIY Web page, translate into English

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