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  1. Aikido vibration issue
  2. Modified Salas Mosfet Shunt Reg
  3. What if O.H. Schade had MOSFETs?
  4. Please Look at my circuit
  5. EL34 tube amp that needs work on
  6. question on differential stage
  7. Need help with my ST70, decrease in one channel
  8. Diff drive
  9. Stereo Aikido GND help
  10. Hashimoto HL-20K-6 Line Output Transformers
  11. What is the RIGHT way to calculate the Value of the cathode resistor?
  12. Kt88 Se
  13. ping Tom Schlangen
  14. Found An Old Transformer, Now What???
  15. Brook 22A restoration, HELP!!
  16. Optimal operating point for 7N7/6SN7?
  17. Loudness Control Calc - Help Please
  18. Kofi Annan in: "Cascodin' with Steve Bench's RIAA!"
  19. New 300B PP amp completed, phase shift questions
  20. One more PSU2 question
  21. 5U4 Darling power TX advice needed
  22. how to optimize this pentode PP (PP1 clone with S11E12)
  23. Can I change the input to a 6SL7?
  24. Outputtransformer to IGA 6550C ULPP
  25. Question on use PSUD2 software
  26. Please add to my confusion re stepup transformers
  27. filament power supply question
  28. Major Hum Problem
  29. FARMER LAMP amp
  30. Valve amp "master class"
  31. Toroid power transformers - are they a good idea?
  32. EL84 SE amplifier
  33. Gain Problems
  34. My SE KT-88 Build thread
  35. Rolling da(rling's) 6j4wa
  36. Phono pre amp
  37. Michealson Audio Da Vinci Preamp
  38. Acrosound PP 6550: Any Advice?
  39. PS idea: isolating transformer from load
  40. K-16LS Help Please
  41. 6N6P-I life-time
  42. Filament Xformer woes...
  43. The Use of 1:1 Input Transformers in Linestages
  44. 12hg7 vs 12hn7a
  45. Anyone familiar with VAC PA 90C1?
  46. voltage reg make heat sink live. Bad idea?
  47. Audio Innovations series 800 reactivation + some mods
  48. Using 2 rectifiers off 1 power supply
  49. Tube power supply
  50. Improving low bass of a Scott 299c
  51. 1939 Radioshack Catalog online...Anyone have a time machine?
  52. VCCS filament supply for 813
  53. Philips AD3800AM and AD9710AM clones
  54. Upgrading output transformers
  55. Cascode RIAA
  56. Volume swinging problem
  57. How to use the almost Group buy Diyaudio CCS circuit
  58. Big voltage swing tube recommendation please
  59. Morgan Jones KT88 PP
  60. Mystery Tube Amplifier -- Help?????
  61. Finding bias point in PP fixed bias
  62. 6V6 Push Pull
  63. Rozenblit 6as7 otl questions
  64. Genesis pre-amplifier schematic wanted
  65. 6H30PI/6922 Preamp Circuit
  66. PFB line amp
  67. 2A3C Mono plate: Shuguang Or Sovtek?
  68. Any kit reccomendation would be helpful
  69. Cleaning tubes...
  70. Anyone recognise these tubes...
  71. big ol' 26lb. output transformer...
  72. ECC88 Help
  73. European Triode Festival ETF08: still some places vacant!
  74. Dynaco MK IV Mystery
  75. 6as7/6080 Se Otl
  76. 6GW8 substitute tube 6BM8?
  77. Choke question
  78. Screen driven output stage
  79. 2a3 parallel driven 6sn7 schem
  80. WMD or Big Freakin Power Supply
  81. Help! May have dropped 12sn7 in place of 6sn7
  82. Got a bucketload of tubes, need identification
  83. Help from Allen Wright SuperReg owner
  84. Moscode 600
  85. Signal caps to keep on hand
  86. pin-compatible EF86 alternative?
  87. Capless Parafeed (with apologies to SY)
  88. T Eaton Viking schematics?
  89. S5 K-16LS mods, tweaks?
  90. 5687 fully balanced line stage
  91. What Do I Have Here?
  92. Bad vacuum?
  93. Th. Lösch Phono Amp: Question about IC used & ECC808 to ECC83
  94. Balanced 24V Aikido question
  95. OT question - will it work?
  96. ID Unknown Tube
  97. Time delay start board for tube amps
  98. Hum reduction ideas (again)
  99. Utc Ls-33
  100. K-16ls
  101. Potential valve damping tweak
  102. Conversion Tube PA and Bass Tone
  103. Wanted. Simple EL34 Push Pull Design
  104. PCB advice
  105. Hybrid voltage quadrupler?
  106. my fu80 amp
  107. Pre-amp for BeoMaster
  108. Question re: chokes
  109. power transformer recommendation
  110. PS decoupling cap placement
  111. #10SE Tested project
  112. schematics help
  113. HF Decoupling Caps questions
  114. 1A7 Heptode (Pentagrid Converter) Audio Preamplifier
  115. Useful power transformer design thread on Analogue
  116. Hewlet Packard transformer
  117. 6BG6 for KT66
  118. new learning
  119. TV-7D/U Tube setting --- 6550
  120. ecc40 LTP
  121. Latest incarnation of music angel kt88
  122. AN Shinri schematic wanted
  123. Found a box of old toobs
  124. Aikido line stage - plus phono line stage
  125. Irritating problem with soft start
  126. OTL with 6AN5
  127. Mono Blocs Completed...
  128. Magic Eye for solid state Tuner?
  129. a question about drive power
  130. converting BAL to UNBAL using tubes and without transformers
  131. Aikiado question
  132. Top cap tubes+ arc welder
  133. Small beginner amplifier and hello :)
  134. Blackburn MicroTech TechTube(TM) Valves update!
  135. Resistor setup for integrated amp & headphones?
  136. Brook 2A3 PP amp ID help
  137. heater voltage
  138. kobayashi 300B push-pull
  139. Triode strapping a tetrode...
  140. Any info on 3572 Half wave Rectier
  141. Question Conrad Johnson reg. psu?
  142. Another 300B SE
  143. 7-pin Low Rp tube
  144. S-5 K-16LS Kit arrived in Germany !!
  145. Transcendar RIP?
  146. 6N6P in an Aikido?
  147. Were can i bay a Telefunken 6ak5 ?
  148. SE 245 driverstage
  149. 12ax7 srpp dac output
  150. How this circuit works (Baby Huey type)
  151. New tubeamp
  152. Snubber caps
  153. Counterpoint sa220
  154. Resistor before tube rectifier
  155. TCJ Push-Pull calculator v2
  156. Sources for James Transformers
  157. High Voltage Soldering (IPC Standards?)
  158. Speakers for Flea Powered Amps <1.5W
  159. wich tube is best for the yaqin cd buffer ?
  160. Mikael Abdellah's SE KT88 bass response + tightness
  161. How best to use the PSU xformer I have
  162. 6L6GC AB2 Amp
  163. Too much gain - help with changing driver tube.
  164. EL95 SE schematic wanted
  165. good value (i.e. cheap) OPT in uk?
  166. Input xfmr, diff stage, CCS questions
  167. Theoretical OPT question
  168. input/driver stage for kt88/6550
  169. thyratron switching
  170. Making component choices (6V6/EL84 PP)
  171. Which socket for a 5Y3??
  172. using #47 in p-p
  173. 6463-12b4a srpp?
  174. Need some help identifying which tubes are suitable
  175. Tube Priceing
  176. edcor output transformer advice
  177. Non top-cap tubes for plasma tweeters
  178. Intermittent Static on ARC REF 3 Preamp
  179. Have you guys seen this yet?
  180. ECC88 heater overvoltage damage?
  181. Recommended designs
  182. Aikido Phono PCB Modifications
  183. Need Power supply advice for Andreas 845
  184. Phonodude question
  185. Power Supply for Aikido Phono Pre
  186. Completed New Combo Amplifier
  187. Want to Build my first Tube Amp
  188. single tube amp ~pspice problem
  189. Modding a tonebone to switch to pentode triode operation?Can this be done??
  190. Relyon KT88/EL34 SE issue, schem attached
  191. Search 35T Schematic
  192. Pete Millett Low-Mu Triode Preamp
  193. thyratron rectifier
  194. Need help making some choices on what to build
  195. A2 curves and curvecaptor.
  196. damper diodes ....
  197. Different Rectifier Warmup Times
  198. stupid question of the day
  199. Fisher 400 Output Transformers
  200. Tube amp repair
  201. Hi-end 845 with only two stage
  202. PL519 Heaters in series blow fuse
  203. Looking for parts to tinker with
  204. KT88 Recommendations?
  205. Anyone Interested in Pete Millett Hybrid Amp PCB's?
  206. Mirror of Steve Bench's site
  207. Quick Question About RCA Input
  208. Built an amp kit!
  209. Holy Smoking Toroid Winder
  210. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  211. why do tubes have a treble lost ???
  212. Low Frequency Mains Noise
  213. Help modifying circuit
  214. Ever heard sth like this?
  215. dual volume control
  216. Need DIY help in Los Angeles area with tube preamp
  217. 6c19p se otl
  218. pt
  219. "Killer" Screen Driven Push-Pull Amp Initial Queries
  220. fixed vs. cathode bias
  221. RH84 Push pull?
  222. Cheapfield project
  223. heater connection problem
  224. What to do with this PP OPT?
  225. Question about Bridging
  226. White Fuzzy furry growth..........TV-2C/U
  227. Tweaks for 845 Power amp
  228. the aardvark grows a spud!
  229. WEST output transformers?
  230. Tube Buffer Success!
  231. Lafayette LA-234 Amplifier
  232. Dealing with Mr. Miller (phono)
  233. Western Electric plant
  234. Pentod PP - too much NFB needed to sound nice?
  235. Lf351 replacement for Curcio Daniel I
  236. How bad is grounding one side of AC filament ?
  237. New matched tubes - where to use them
  238. Glow Tube (0B2) Help
  239. Bose 901 + Tube amps
  240. Tube tape NR
  241. Ming Da MC-34B fuse value?
  242. Volume pot for TubelabSE 300B recommendation ?
  243. Toy amp.
  244. Looking to build a 25-30 WPC Push Pull amp - Need Help
  245. Quicksilver 8417 question
  246. GSM interference
  247. &lt;WTA&gt;Tube biased by LED
  248. Lundahl 4-30 Build
  249. Anyone Have Info On Triode Board For MK IV?
  250. I would like to DIY Marantz model9

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