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  1. Octal Hagerman Cornet Experiences
  2. Zenith AM/FM C835 tube Radio schematic
  3. Oh man, my telefunken stoops...
  4. 42 single ended
  5. EL34 Feedback circuit
  6. Spice model for EL86/6CW5
  7. Ditching some High Voltage
  8. Newbie want to build simple tube preamp&psu!need help!
  9. Phono Pre-Design Input
  10. HV Direct Drive tube amp.
  11. A question about Cathodyne/split load/concertina PI's
  12. Kofi Annan in: "Hummin' Trafo Blues"
  13. Rattling Tube
  14. Berning output buffer
  15. Tube PSU Question
  16. JoLida Envoy PreAmp or DIY?
  17. Looking for Audio Note P1SE schematics.
  18. Which SE-ECL82 amp to build?
  19. PSU Help
  20. Help for stabilisator Data
  21. How much ripple on B+ is allowed?
  22. Typical 2A3 hum?
  23. PV10 PS transformer
  24. 300B Filament Voltage Range
  25. Mullard EL34-Authenticity Verification
  26. Philips V30M amplifier
  27. PWM power supply???
  28. Regulated psu for tube preamp
  29. About to start a new project: PP 6CK4s...
  30. Komuro DC 300B crct w/ 50dht?
  31. DIY speaker attenuator?
  32. So what are some good 7-pin, hi mu, low noise/microphonic tubes??
  33. Audio meet pics from this past weekend
  34. Audio Note M7 Line Preamp??
  35. PP 7591 amp
  36. Tube op amps
  37. Please tell me how to upgrade Music Angel KT88 amplifier?
  38. Do I want a fan?
  39. 3rd Aikido?
  40. More Questions about A.Wrights PP1C
  41. 7591s flashing on start-up?
  42. first amp build... wiring questions
  43. pentode aikido driver for 300b
  44. Question about single NOS triodes in cascode for fun
  45. oscillating PP EL84 amplifier
  46. 6H30P based cathode-follower schema kindly requested
  47. Cathode follower question
  48. Bunch of old parts, worth anything?
  49. 6922 vs. 6N1P Bass Response
  50. Behringer reaches a new high in tube "transparency"
  51. Input stage tube
  52. Using transformers as choke?
  53. Resistors
  54. melos gk1 preamps anybody?
  55. Looking for a thread...
  56. DG7-32 based oscillograph schematic needed
  57. Try!!! Ef37a + 6c33c
  58. qustion on tube grade wiring
  59. Balanced pre-amp attempt
  60. GRRR.. sanity check on PTx current please
  61. How do you measure ripple on the B+?
  62. Aikido + EL34 Integrated
  63. heater voltage: why ac, and not dc?
  64. Ideas for using one ECL82 in a preamp
  65. Question about 12AU7
  66. 6AU6, 6U8, 6CL6, plus UTC A-10 make Mic Pre?
  67. WIMA FKP1 1000V as coupling cap ??
  68. Ping amperex re: Hammond organs
  69. schematic needen variable power supply
  70. Distributed Load/Balanced Bridge Connection
  71. CCS, feedback and grid leak questions.
  72. Vdd
  73. Help with 6GW8/ECL86 tubes??
  74. Best amplifier (recomendations) for Fostex FE108ez?
  75. Quick valve construction question
  76. Poindexter's 6v6 PP amp
  77. need some help with Ohm's law-fast!
  78. hybrid rectifier question
  79. I really, really wish I hadn't done that...
  80. Quicksilver 8417 conversion
  81. Supratek
  82. remote OPT, stupid idea ?
  83. Autoformer output stage
  84. Remote Power Supply: A Stupid Idea?
  85. Rjm simple tube phono pre
  86. Voltage controlled filter with tubes ??
  87. Does this look right to you?
  88. PWM amplifier hooked onto a tube preamp
  89. Zenith Console Opt Question, Odd Secondary
  90. Marchand LN108 Tube Phono Preamp
  91. Anyone care to express an opinion on this output Transformer
  92. 6L6 Triode strapped amp suggestions
  93. 6F1 and 6P2 Equivalents
  94. in memoriam Fred N. AKA 807
  95. Perplexed by 5AR4 Tube Socket? Picture Included
  96. Push pull 300B and more than a few questions...
  97. First tube project.
  98. DHT learning
  99. how do i add adjustable bias on amp?
  100. "El Cheapo Valve Phono" using 6ER5=>12AT7WC?
  101. Design Questions
  102. SRPP + Gainclone
  103. dht p-p filament question
  104. Report - 2005 London HiFi Show
  105. Want to build hi - power amp
  106. Can I mod this circuit to use 6922 tubes?
  107. tube preamp kit question (again?)
  108. 3f4 spice models needed
  109. Back to Back transformers to get +B of 200V ??
  110. New amp project-some ideas of my own and looking for input from others...
  111. Emphasising the transients, but making the mediocre listenable
  112. Looking For a PP 6Y6GA Design
  113. Industrial vs Commercial amps and OPT's
  114. ECC99 operating points?
  115. Preamp suggestions for a tube newbie
  116. very odd thing happening in my amp... help
  117. 47 Penthode in triode mode.
  118. Capacitor value
  119. PSE bias how?
  120. GM70 Power supply
  121. interstage convert to phase splitter
  122. EL84 SE advice'n'schematics needed
  123. world's heaviest 2A3 amp?
  124. How To Tell What Tubes To Keep
  125. PX4 Trauma
  126. An amplifier project I'm looking for...
  127. Your 100volt plus moment
  128. Dynaco rectifier replacement?
  129. SET on a budget
  130. PSU Design Learning Links
  131. Expensive Commercial Amps
  132. Tube modified CD player with TDA1543
  133. Fluorescent lamp choke - use in tube amp?
  134. Tube Overdrive
  135. Mains Transformer for EL34PP
  136. Please review schematic
  137. Wire size for projects?
  138. super simple tube amp needed...
  139. Matlab-based triode modelling software
  140. 12AT7 Pre-amp schematic, where to find?
  141. choke input ripple level?
  142. 120 Hz Buzz Unplugged
  143. 300B like 845
  144. DC filament ground and high voltage ground
  145. DIY Club remote volume help?
  146. Aesthetix Rhea and I/O diagrams?
  147. Cathode Bypass Cap questions
  148. rectification and xfmr stress
  149. Audio Research
  150. Anybody got Melos MA-111 Schematic?
  151. Problem locating power supply
  152. Timer Relay
  153. Help With Jukebox Amp
  154. Help the Idiot: Simple, Great-Sounding Integrated Amp Designs
  155. 6W6 as a driver
  156. Choosing the best EL34 pp opt
  157. Your opinion, please
  158. Tube surround sound
  159. Could you guys check this cascode article for me
  160. what would happen if...
  161. A Heretical Unity Gain Line Stage part III
  162. Which ECC83 tube and caps question
  163. Paralle Push Pull Simulclass
  164. organ amp question
  165. Stereo build- Mikael Abdellah's KT88 SE amp
  166. Audio Research AC21 cross over
  167. First DIY amp pics-as promised!
  168. emission-lab info
  169. Simple EL84 PP design needed
  170. 6C33 Circlotron
  171. Valves glow fierce
  172. Kirung's GM70 SE-Amps from Korea
  173. Digital Pots
  174. Troubleshooting First Tube Project
  175. Millett Low mu Preamp help
  176. thoughts about a 'universal' preamp
  177. Morgan Jones's Bevois Valley amp...
  178. Aikido line stage results? share yours
  179. HELP with breadboard layout!!!
  180. balanced line stage schematic needed
  181. Its Alive!! First Diy Amp Works!!
  182. Duncan Munro Psud primer please?
  183. Preamp volume control??
  184. Welborne 300b DRD plate current
  185. Active compensation...
  186. Calculating expected output power.
  187. Hybrid X line amp
  188. any way to fix a end cap on a 807 power tube
  189. power tube question
  190. MJ head-amp- how does it sound?
  191. Quick Aikido question
  192. What kind of amp?
  193. Problem with cathode resistor
  194. 2A3 DRD schematic wanted
  195. reduce before amplifying?
  196. 6AS7-G RCA application considerations
  197. Matisse Fantasy waveform output test
  198. El84/6bq5/ecc83 + Ef86 = Dc Pp
  199. Searching for simple circuit
  200. McIntosh MC60 Screens
  201. Improve this Pilot 240 (EL84/6BQ5)
  202. Eimac 35TG
  203. power supply issues
  204. Which Amperex ECC88 is the best?
  205. Grid battery bias on phono....
  206. EL34 identification
  207. UL vs SE
  208. 6sn7 operating points
  209. HELP! B+ voltage problem/burning power resistor
  210. are these tubes any good ?????
  211. Free Lunch/Monkey/DRD inspired 2A3
  212. E280F Triode mode operating point
  213. 2nd Aikido PCB and PSU groupbuy
  214. Newbie question...
  215. Help in getting more gain out of 300B SE
  216. ECC808 what to do
  217. Microphonics When Hot, Raytheon CK5842
  218. MOSCODE hybrid DIY
  219. transformer question
  220. help, my amp humz
  221. Le tube preamp
  222. Ideal operating point of 6sj7
  223. Anyone tried the Hammond 1642SE in a BIG SE amp?
  224. MOSFET current source as triode load
  225. C-core transformers
  226. choke and choke
  227. suggestions for 300B tubes
  228. Differential input stage
  229. rca conversion
  230. heating
  231. Russian 6N8S/1578
  232. DIY tube amp squeals when turned up
  233. ECL80-Amp from Andreas Kirschner
  234. HSS preamp, anyone care to comment
  235. help me design an input stage for 6b4G PP
  236. Instrument/Microphone Tube Pre-amp
  237. first-time tube DIY project...phono preamp
  238. A question regarding schematics
  239. My first creation
  240. Your opinion on this VCCS heater supply please.
  241. Looking for ORIGINAL GE 6L6GC
  242. Need help - O/T trannies for future project
  243. ECL82 (6BM8) PP Stereo
  244. first DIY amp start up-yowza HELP!
  245. Ronette Info
  246. GE 5687 (5 stars)
  247. Help: Toroid choke for a preamp
  248. does meter degrade sound ?
  249. Eye Tube (1629) controller help
  250. Scott 99B & 99C Public Auction Find

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