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  1. Loudness Control Calc - Help Please
  2. Kofi Annan in: "Cascodin' with Steve Bench's RIAA!"
  3. New 300B PP amp completed, phase shift questions
  4. One more PSU2 question
  5. 5U4 Darling power TX advice needed
  6. how to optimize this pentode PP (PP1 clone with S11E12)
  7. Can I change the input to a 6SL7?
  8. Outputtransformer to IGA 6550C ULPP
  9. Question on use PSUD2 software
  10. Please add to my confusion re stepup transformers
  11. filament power supply question
  12. Major Hum Problem
  13. FARMER LAMP amp
  14. Valve amp "master class"
  15. Toroid power transformers - are they a good idea?
  16. EL84 SE amplifier
  17. Gain Problems
  18. My SE KT-88 Build thread
  19. Rolling da(rling's) 6j4wa
  20. Phono pre amp
  21. Michealson Audio Da Vinci Preamp
  22. Acrosound PP 6550: Any Advice?
  23. PS idea: isolating transformer from load
  24. K-16LS Help Please
  25. 6N6P-I life-time
  26. Filament Xformer woes...
  27. The Use of 1:1 Input Transformers in Linestages
  28. 12hg7 vs 12hn7a
  29. Anyone familiar with VAC PA 90C1?
  30. Help restore an RCP 413 tube tester
  31. voltage reg make heat sink live. Bad idea?
  32. Audio Innovations series 800 reactivation + some mods
  33. Using 2 rectifiers off 1 power supply
  34. Tube power supply
  35. Improving low bass of a Scott 299c
  36. 1939 Radioshack Catalog online...Anyone have a time machine?
  37. VCCS filament supply for 813
  38. digital volume control
  39. Philips AD3800AM and AD9710AM clones
  40. MTP6N60E replacement
  41. Upgrading output transformers
  42. Cascode RIAA
  43. need a manual for selectron model 40 tube tester??
  44. Volume swinging problem
  45. How to use the almost Group buy Diyaudio CCS circuit
  46. Big voltage swing tube recommendation please
  47. Morgan Jones KT88 PP
  48. Mystery Tube Amplifier -- Help?????
  49. tube tester how can i tell if have match pair?
  50. Finding bias point in PP fixed bias
  51. 6V6 Push Pull
  52. Transformer Mounting Braces
  53. Rozenblit 6as7 otl questions
  54. Genesis pre-amplifier schematic wanted
  55. 6H30PI/6922 Preamp Circuit
  56. PFB line amp
  57. 2A3C Mono plate: Shuguang Or Sovtek?
  58. Any kit reccomendation would be helpful
  59. Cleaning tubes...
  60. Anyone recognise these tubes...
  61. big ol' 26lb. output transformer...
  62. ECC88 Help
  63. European Triode Festival ETF08: still some places vacant!
  64. Dynaco MK IV Mystery
  65. 6as7/6080 Se Otl
  66. 6GW8 substitute tube 6BM8?
  67. Choke question
  68. Screen driven output stage
  69. 2a3 parallel driven 6sn7 schem
  70. WMD or Big Freakin Power Supply
  71. DIY My tube tester
  72. Help! May have dropped 12sn7 in place of 6sn7
  73. Got a bucketload of tubes, need identification
  74. Help from Allen Wright SuperReg owner
  75. Moscode 600
  76. Signal caps to keep on hand
  77. pin-compatible EF86 alternative?
  78. Capless Parafeed (with apologies to SY)
  79. T Eaton Viking schematics?
  80. S5 K-16LS mods, tweaks?
  81. 5687 fully balanced line stage
  82. Subminiature sockets
  83. What Do I Have Here?
  84. Bad vacuum?
  85. Th. Lösch Phono Amp: Question about IC used & ECC808 to ECC83
  86. Balanced 24V Aikido question
  87. OT question - will it work?
  88. ID Unknown Tube
  89. Time delay start board for tube amps
  90. Hum reduction ideas (again)
  91. Utc Ls-33
  92. K-16ls
  93. Potential valve damping tweak
  94. Conversion Tube PA and Bass Tone
  95. Wanted. Simple EL34 Push Pull Design
  96. PCB advice
  97. Hybrid voltage quadrupler?
  98. my fu80 amp
  99. Pre-amp for BeoMaster
  100. Question re: chokes
  101. Inundated Electrolytics
  102. power transformer recommendation
  103. PS decoupling cap placement
  104. USSR Russian Caps. KBG-MN or K75-24?
  105. #10SE Tested project
  106. schematics help
  107. HF Decoupling Caps questions
  108. 1A7 Heptode (Pentagrid Converter) Audio Preamplifier
  109. Useful power transformer design thread on Analogue
  110. Understanding Simple SE design choices
  111. Hewlet Packard transformer
  112. 6BG6 for KT66
  113. new learning
  114. TV-7D/U Tube setting --- 6550
  115. ecc40 LTP
  116. Latest incarnation of music angel kt88
  117. Tubelab SE oscillation?
  118. AN Shinri schematic wanted
  119. Found a box of old toobs
  120. Aikido line stage - plus phono line stage
  121. Hook up wire?
  122. Irritating problem with soft start
  123. OTL with 6AN5
  124. Mono Blocs Completed...
  125. Magic Eye for solid state Tuner?
  126. a question about drive power
  127. converting BAL to UNBAL using tubes and without transformers
  128. Aikiado question
  129. Top cap tubes+ arc welder
  130. Small beginner amplifier and hello :)
  131. Blackburn MicroTech TechTube(TM) Valves update!
  132. Resistor setup for integrated amp & headphones?
  133. Brook 2A3 PP amp ID help
  134. heater voltage
  135. kobayashi 300B push-pull
  136. Triode strapping a tetrode...
  137. Any info on 3572 Half wave Rectier
  138. Question Conrad Johnson reg. psu?
  139. Another 300B SE
  140. 7-pin Low Rp tube
  141. S-5 K-16LS Kit arrived in Germany !!
  142. Transcendar RIP?
  143. 6N6P in an Aikido?
  144. Were can i bay a Telefunken 6ak5 ?
  145. SE 245 driverstage
  146. 12ax7 srpp dac output
  147. How this circuit works (Baby Huey type)
  148. New tubeamp
  149. Snubber caps
  150. Counterpoint sa220
  151. Resistor before tube rectifier
  152. TCJ Push-Pull calculator v2
  153. Heathkit AG-9A audio generator schematic !!!
  154. Sources for James Transformers
  155. High Voltage Soldering (IPC Standards?)
  156. Speakers for Flea Powered Amps <1.5W
  157. Opinions on Allen & Bradley Carbon Composite resistors
  158. wich tube is best for the yaqin cd buffer ?
  159. Mikael Abdellah's SE KT88 bass response + tightness
  160. How best to use the PSU xformer I have
  161. 6L6GC AB2 Amp
  162. Kofi Annan in: "I'd Like Me a Mic Pre!"
  163. Too much gain - help with changing driver tube.
  164. EL95 SE schematic wanted
  165. test settings hickok i177B for 5ar4/gz34
  166. good value (i.e. cheap) OPT in uk?
  167. Input xfmr, diff stage, CCS questions
  168. Theoretical OPT question
  169. input/driver stage for kt88/6550
  170. thyratron switching
  171. Making component choices (6V6/EL84 PP)
  172. Which socket for a 5Y3??
  173. using #47 in p-p
  174. 6463-12b4a srpp?
  175. Need some help identifying which tubes are suitable
  176. Tube Priceing
  177. edcor output transformer advice
  178. Non top-cap tubes for plasma tweeters
  179. Intermittent Static on ARC REF 3 Preamp
  180. Have you guys seen this yet?
  181. ECC88 heater overvoltage damage?
  182. Recommended designs
  183. Aikido Phono PCB Modifications
  184. Need Power supply advice for Andreas 845
  185. Phonodude question
  186. Power Supply for Aikido Phono Pre
  187. Completed New Combo Amplifier
  188. Want to Build my first Tube Amp
  189. single tube amp ~pspice problem
  190. Modding a tonebone to switch to pentode triode operation?Can this be done??
  191. Relyon KT88/EL34 SE issue, schem attached
  192. Search 35T Schematic
  193. Hickok 600A, shattered mercury rectifier...
  194. Pete Millett Low-Mu Triode Preamp
  195. First scope/buying oscilloscope probes
  196. thyratron rectifier
  197. Need help making some choices on what to build
  198. A2 curves and curvecaptor.
  199. damper diodes ....
  200. Different Rectifier Warmup Times
  201. stupid question of the day
  202. Fisher 400 Output Transformers
  203. Tube amp repair
  204. Hi-end 845 with only two stage
  205. PL519 Heaters in series blow fuse
  206. Looking for parts to tinker with
  207. KT88 Recommendations?
  208. Anyone Interested in Pete Millett Hybrid Amp PCB's?
  209. Mirror of Steve Bench's site
  210. Quick Question About RCA Input
  211. Built an amp kit!
  212. Holy Smoking Toroid Winder
  213. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  214. why do tubes have a treble lost ???
  215. Low Frequency Mains Noise
  216. Help modifying circuit
  217. Ever heard sth like this?
  218. dual volume control
  219. Need DIY help in Los Angeles area with tube preamp
  220. 6c19p se otl
  221. pt
  222. "Killer" Screen Driven Push-Pull Amp Initial Queries
  223. fixed vs. cathode bias
  224. RH84 Push pull?
  225. Cheapfield project
  226. heater connection problem
  227. What to do with this PP OPT?
  228. Question about Bridging
  229. White Fuzzy furry growth..........TV-2C/U
  230. Tweaks for 845 Power amp
  231. the aardvark grows a spud!
  232. WEST output transformers?
  233. Tube Buffer Success!
  234. Lafayette LA-234 Amplifier
  235. filter choke voltage rating
  236. Dealing with Mr. Miller (phono)
  237. Western Electric plant
  238. Pentod PP - too much NFB needed to sound nice?
  239. Lf351 replacement for Curcio Daniel I
  240. How bad is grounding one side of AC filament ?
  241. New matched tubes - where to use them
  242. Glow Tube (0B2) Help
  243. Bose 901 + Tube amps
  244. Tube tape NR
  245. Ming Da MC-34B fuse value?
  246. Potentiometer with bass boost pin for Simple SE?
  247. Volume pot for TubelabSE 300B recommendation ?
  248. (help) Make a 13.8V 50 Amp continueous current
  249. Toy amp.
  250. Looking to build a 25-30 WPC Push Pull amp - Need Help

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