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  1. So what are some good 7-pin, hi mu, low noise/microphonic tubes??
  2. Audio meet pics from this past weekend
  3. Audio Note M7 Line Preamp??
  4. PP 7591 amp
  5. Tube op amps
  6. Please tell me how to upgrade Music Angel KT88 amplifier?
  7. Do I want a fan?
  8. 3rd Aikido?
  9. More Questions about A.Wrights PP1C
  10. 7591s flashing on start-up?
  11. first amp build... wiring questions
  12. pentode aikido driver for 300b
  13. Question about single NOS triodes in cascode for fun
  14. oscillating PP EL84 amplifier
  15. 6H30P based cathode-follower schema kindly requested
  16. Cathode follower question
  17. Bunch of old parts, worth anything?
  18. 6922 vs. 6N1P Bass Response
  19. Behringer reaches a new high in tube "transparency"
  20. Input stage tube
  21. Using transformers as choke?
  22. Resistors
  23. melos gk1 preamps anybody?
  24. Looking for a thread...
  25. DG7-32 based oscillograph schematic needed
  26. Try!!! Ef37a + 6c33c
  27. qustion on tube grade wiring
  28. Balanced pre-amp attempt
  29. GRRR.. sanity check on PTx current please
  30. How do you measure ripple on the B+?
  31. Aikido + EL34 Integrated
  32. heater voltage: why ac, and not dc?
  33. Ideas for using one ECL82 in a preamp
  34. Question about 12AU7
  35. 6AU6, 6U8, 6CL6, plus UTC A-10 make Mic Pre?
  36. WIMA FKP1 1000V as coupling cap ??
  37. Ping amperex re: Hammond organs
  38. schematic needen variable power supply
  39. Distributed Load/Balanced Bridge Connection
  40. CCS, feedback and grid leak questions.
  41. Vdd
  42. Help with 6GW8/ECL86 tubes??
  43. Best amplifier (recomendations) for Fostex FE108ez?
  44. Quick valve construction question
  45. Poindexter's 6v6 PP amp
  46. need some help with Ohm's law-fast!
  47. hybrid rectifier question
  48. I really, really wish I hadn't done that...
  49. Quicksilver 8417 conversion
  50. Supratek
  51. remote OPT, stupid idea ?
  52. Autoformer output stage
  53. Remote Power Supply: A Stupid Idea?
  54. Rjm simple tube phono pre
  55. Voltage controlled filter with tubes ??
  56. Does this look right to you?
  57. PWM amplifier hooked onto a tube preamp
  58. Zenith Console Opt Question, Odd Secondary
  59. Marchand LN108 Tube Phono Preamp
  60. Anyone care to express an opinion on this output Transformer
  61. 6L6 Triode strapped amp suggestions
  62. 6F1 and 6P2 Equivalents
  63. in memoriam Fred N. AKA 807
  64. Perplexed by 5AR4 Tube Socket? Picture Included
  65. Push pull 300B and more than a few questions...
  66. First tube project.
  67. DHT learning
  68. how do i add adjustable bias on amp?
  69. Tube tester: Accurate Instruments Model 157
  70. "El Cheapo Valve Phono" using 6ER5=>12AT7WC?
  71. Design Questions
  72. SRPP + Gainclone
  73. dht p-p filament question
  74. Report - 2005 London HiFi Show
  75. Want to build hi - power amp
  76. Gibson Skylark Grouding Questions
  77. Can I mod this circuit to use 6922 tubes?
  78. tube preamp kit question (again?)
  79. 3f4 spice models needed
  80. Back to Back transformers to get +B of 200V ??
  81. New amp project-some ideas of my own and looking for input from others...
  82. Emphasising the transients, but making the mediocre listenable
  83. Looking For a PP 6Y6GA Design
  84. Industrial vs Commercial amps and OPT's
  85. ECC99 operating points?
  86. Preamp suggestions for a tube newbie
  87. very odd thing happening in my amp... help
  88. 47 Penthode in triode mode.
  89. Capacitor value
  90. PSE bias how?
  91. GM70 Power supply
  92. interstage convert to phase splitter
  93. EL84 SE advice'n'schematics needed
  94. world's heaviest 2A3 amp?
  95. How To Tell What Tubes To Keep
  96. PX4 Trauma
  97. An amplifier project I'm looking for...
  98. Your 100volt plus moment
  99. Dynaco rectifier replacement?
  100. SET on a budget
  101. PSU Design Learning Links
  102. Expensive Commercial Amps
  103. Tube modified CD player with TDA1543
  104. Types of polypropylene capacitor....
  105. Fluorescent lamp choke - use in tube amp?
  106. Tube Overdrive
  107. Mains Transformer for EL34PP
  108. Please review schematic
  109. Wire size for projects?
  110. super simple tube amp needed...
  111. Modifing A Fender Bassman Scheme
  112. Matlab-based triode modelling software
  113. 12AT7 Pre-amp schematic, where to find?
  114. Test settings for Hickok 539A for 183/483 tube?
  115. choke input ripple level?
  116. 120 Hz Buzz Unplugged
  117. 300B like 845
  118. Guitar amp picks up radio??
  119. DC filament ground and high voltage ground
  120. Roll CALL: How many guitar amp guys are here
  121. DIY Club remote volume help?
  122. Aesthetix Rhea and I/O diagrams?
  123. Electrolytic vs polyprop capacitors
  124. Cathode Bypass Cap questions
  125. rectification and xfmr stress
  126. Audio Research
  127. Anybody got Melos MA-111 Schematic?
  128. Problem locating power supply
  129. Timer Relay
  130. Help With Jukebox Amp
  131. Help the Idiot: Simple, Great-Sounding Integrated Amp Designs
  132. Help Please Guitar Project Mess
  133. Help - tube driver for spring reverb...
  134. 6W6 as a driver
  135. Choosing the best EL34 pp opt
  136. Your opinion, please
  137. Tube surround sound
  138. Could you guys check this cascode article for me
  139. what would happen if...
  140. A Heretical Unity Gain Line Stage part III
  141. Which ECC83 tube and caps question
  142. Paralle Push Pull Simulclass
  143. organ amp question
  144. Stereo build- Mikael Abdellah's KT88 SE amp
  145. Audio Research AC21 cross over
  146. First DIY amp pics-as promised!
  147. emission-lab info
  148. Simple EL84 PP design needed
  149. 6C33 Circlotron
  150. Valves glow fierce
  151. Kirung's GM70 SE-Amps from Korea
  152. Digital Pots
  153. Troubleshooting First Tube Project
  154. Millett Low mu Preamp help
  155. thoughts about a 'universal' preamp
  156. Morgan Jones's Bevois Valley amp...
  157. Aikido line stage results? share yours
  158. Fender power transformer help
  159. HELP with breadboard layout!!!
  160. balanced line stage schematic needed
  161. Its Alive!! First Diy Amp Works!!
  162. Duncan Munro Psud primer please?
  163. Preamp volume control??
  164. Welborne 300b DRD plate current
  165. Active compensation...
  166. Calculating expected output power.
  167. Hybrid X line amp
  168. any way to fix a end cap on a 807 power tube
  169. power tube question
  170. MJ head-amp- how does it sound?
  171. Quick Aikido question
  172. What kind of amp?
  173. Problem with cathode resistor
  174. 2A3 DRD schematic wanted
  175. reduce before amplifying?
  176. 6AS7-G RCA application considerations
  177. Matisse Fantasy waveform output test
  178. El84/6bq5/ecc83 + Ef86 = Dc Pp
  179. Searching for simple circuit
  180. McIntosh MC60 Screens
  181. Improve this Pilot 240 (EL84/6BQ5)
  182. Eimac 35TG
  183. power supply issues
  184. Which Amperex ECC88 is the best?
  185. laney PA amp questions
  186. Grid battery bias on phono....
  187. EL34 identification
  188. UL vs SE
  189. 6sn7 operating points
  190. HELP! B+ voltage problem/burning power resistor
  191. are these tubes any good ?????
  192. Free Lunch/Monkey/DRD inspired 2A3
  193. E280F Triode mode operating point
  194. EL84 Guitar amp questions (long, sorry)
  195. 2nd Aikido PCB and PSU groupbuy
  196. Newbie question...
  197. Help in getting more gain out of 300B SE
  198. ECC808 what to do
  199. Microphonics When Hot, Raytheon CK5842
  200. MOSCODE hybrid DIY
  201. transformer question
  202. help, my amp humz
  203. Le tube preamp
  204. Ideal operating point of 6sj7
  205. Convert a non-valve amp to a Valve (tube) Amp
  206. Anyone tried the Hammond 1642SE in a BIG SE amp?
  207. MOSFET current source as triode load
  208. C-core transformers
  209. choke and choke
  210. High Voltage Power Supply Caps
  211. suggestions for 300B tubes
  212. Differential input stage
  213. rca conversion
  214. heating
  215. Russian 6N8S/1578
  216. DIY tube amp squeals when turned up
  217. ECL80-Amp from Andreas Kirschner
  218. HSS preamp, anyone care to comment
  219. help me design an input stage for 6b4G PP
  220. Instrument/Microphone Tube Pre-amp
  221. first-time tube DIY project...phono preamp
  222. A question regarding schematics
  223. My first creation
  224. Your opinion on this VCCS heater supply please.
  225. Looking for ORIGINAL GE 6L6GC
  226. Need help - O/T trannies for future project
  227. ECL82 (6BM8) PP Stereo
  228. first DIY amp start up-yowza HELP!
  229. Ronette Info
  230. GE 5687 (5 stars)
  231. vox ac4
  232. Help: Toroid choke for a preamp
  233. Who makes a 1962 Bassman head chassis?
  234. does meter degrade sound ?
  235. Eye Tube (1629) controller help
  236. Scott 99B & 99C Public Auction Find
  237. tube id book
  238. radio , tv station and radar stations still use the best single end class a amplifier
  239. Stupid question?
  240. looking for ideas on a small tube amp stand?
  241. Cascode gain stage info?????
  242. hi gain preamp
  243. Tube flashing
  244. Bogen tube amp with variable Damping Factor
  245. Question re Allen Wright PP-1cs
  246. What is a good Tube tester to get?
  247. High Gain Preamp
  248. SACThailand
  249. You know you're a tube junky when...
  250. 6AU6 to do EF86 duty?

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