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  1. Newbie with Tannoy grfs, helpme to choice a good amp to them.
  2. Mullard CV 4109 tube
  3. Pre PS Improvements?
  4. 6n7gt+300b
  5. Calculating DC coupled Single Ended Valve Amplifiers - Part #1
  6. 12ax7 preamp,need help.
  7. tube datasheets and amp sch
  8. How to check output transformers ?
  9. Filament of a 6AS7G
  10. triode=>pentode
  11. noob PSUD question...
  12. Detailed and Dry.
  13. Audion sterling phono stage - a good base for future upgrades?
  14. First Try on Tube Preamp
  15. EL34 in class AB2 triode mode push-pull?
  16. Heater Voltage Range, Hi or Low
  17. Donor H/K A224 Amp
  18. market for used tubes?
  19. Voltage Doubler Problem
  20. 6922 as a CCS, a question ?
  21. ALPS Pot
  22. Tube parameter ?
  23. tube life
  24. 7591A Tubes for sale?
  25. Restoring tired tubes
  26. My Bottlehead Tube Rig is done...for now
  27. Hammond Transformers
  28. Kenwood KW-70 Receiver
  29. Tube output buffer for DAC....needs advice!
  30. The Crackerbox Amp
  31. Antique Sound Lab MG-SPM25 Output Transformers
  32. el84 quad schematic..something is wrong...?
  33. really dumb question about SE 6bq5 operating point (triode)
  34. 6n7gt
  35. EE-Zee & Chee-Zee bias and offset adjustment idea
  36. Preamp Selection
  37. High frecuency oscillation when moving volume pot
  38. Choke load - how to plot loadline?
  39. Audio Research LS2
  40. Any Tube DIYers in Bay Area
  41. 6DJ8 preamp voltage?
  42. Diodes in Grid-Cathode Circuit
  43. To regulate or not?
  44. Odd tube behavior
  45. output txfr on cathode?
  46. tube preamp w/ XLR?
  47. ECC88 and PCC88 filament voltages
  48. Best tube choice for 1st SET project?
  49. Croft Vitale
  50. at last, amp finnished
  51. Silver micas as coupling caps?
  52. Valve-Heart Recording Studio
  53. Prototyping ( Breadboard ) Chassis Ideas and Suggestions
  54. old tubes
  55. where to place extra filter cap
  56. Troubleshooting a 6n1p linestage.
  57. 300BSE series
  58. Which triode is the best for preamp?
  59. AV8 and AV15 Vaic tubes
  60. Refridgerator trying to kill my Valve Amp
  61. When is capacitance making AC ripple a non-issue in B+ PS's?
  62. Quicksilver Bias Problem
  63. Looking for good book about phase split
  64. speaker protection fuse in Transcendent T8
  65. Shuguang Tube Factory(pics)
  66. "Pentodes for Dummies" needed.
  67. schematic for audio research classic 120 amps?
  68. Bouncing Ground
  69. Testing response....
  70. Impedance selection
  71. Heater To Cathode Potential
  72. uneven wound 50w OT 2 ideas...?
  73. 6B4G Amplifier Questions
  74. grounding heater/filament center
  75. Do I lose power when parafeeding?
  76. no ground problem
  77. Tube amp project
  78. bi-amping with gainclone + tubeamp
  79. Plitron/Vanderveen/KT88 Tube rectifier recommendation for 230mA?
  80. proposed 833 design
  81. Thyratron Circuit
  82. different phase invertors
  83. Tetrode or Pentode? / Tube info
  84. RECTIFIERLESS, is that possible?
  85. About high voltage regulated power supplies
  86. Stupid question about capacitors
  87. Time advanced error feedback correction
  88. My first tube amp
  89. copland 504
  90. 6D22S Damper Tubes
  91. resuscitating 60+ year old radio
  92. 6C45 in a phono amp? looks like this might be hot.
  93. quality of power supply
  94. Gassy Tube
  95. transformer coupling, magnetic amplifiers, grid leak current
  96. How low 6922/ECC88 can go?
  97. Question about PP EL34 power supply behaviour
  98. Tube amps and electric safety
  99. Transformer for a tube amp question
  100. Need some info on E88CC/6922
  101. strange "thing"
  102. Extra gain stage Marshall plexi 50watt
  103. Help with Hickok 539A tube tester repair..
  104. Micing tube amps
  105. Tube preamp huge DC thump!
  106. New speaker for transcendent T8
  107. choke winding
  108. MC phono preamp
  109. KYW's linestage (split from RIAA for life time)
  110. output transformer spice model
  111. cathode connection in directly heated triodes
  112. 50watt Plexi Again
  113. Anyone use ICs as input phase splitters for tube equipment
  114. Tube Sockets
  115. RIAA and Linestage for life time
  116. 211 Preamp
  117. Building a Marshall Plexi
  118. PL504 circuits.
  119. Tube Recommendation
  120. 6.3v 30A!?
  121. Simplest 6080 or 6AS7 OTL Project?
  122. Is 6N1P = 6N7 = ECC31
  123. EL34 in Pentode Class A?
  124. Wiring a 12au7
  125. BLue hue
  126. Choosing a suitable 50W cathode resistor
  127. 5687
  128. heathkit Schematic
  129. Precision S100 schematics?
  130. my RIAA stage. Any comment
  131. buffer circuits
  132. switchable 2.5k/5k primary ot
  133. Old grundig 3095 radio
  134. DIY Single Ended Triode Designs
  135. dog whistle
  136. Volume pot question
  137. Oil PP Cap
  138. commercial tube preamps
  139. Transformer Cover
  140. Harman-Kardon A-300 Amplifier
  141. Phono preamp- how to modify to get deeper LF?
  142. Thyratron heater supply?
  143. amp conversions
  144. Looking for Scott 200 photofacts or service manual
  145. 6ag7 metal pentodes
  146. EL84 Push-Pull Vieta A-225 opinion
  147. 5998 power amp question
  148. Which rectifier tube?
  149. tube preamp
  150. 6GT5 distortion problem
  151. tube preamps and gain
  152. Cathode Follower? Yay or nay?
  153. what the crap is this!?
  154. Safety Practices, General and Ultra-High Voltage
  155. Output transformer issues...
  156. Tube sockets with the same pin spacing as the tube
  157. Help needed with preamp.
  158. VSE RTP5 linestage comments
  159. VSE RTP5 linestage comments
  160. Futterman OTL ferrite bead specification
  161. common anode capacitor for both sections
  162. How good are cheap tranny-interstages
  163. Favorite bias measuring and metering methods?
  164. Suitable regulated/filtered 4volt battery-valve power supply suitable for 6+ valves?
  165. Newbie Transformer Secondary Combination Qs--Plitron Example
  166. Zenith Wavemagnet Help Please !!!
  167. Audio research vs55/VT50/VT100
  168. quad 6bm8 per channel
  169. Tubes from St.Petersburg, Russia?
  170. Tube preamplifier
  171. Seeking suggestions on slowing B+ turn on
  172. Help on Brute force
  173. 6SL7 or 12AX7 in Kimmel OTL
  174. What´s wrong with Hammond 1628SE?
  175. Input stages - to decouple B+ or not?
  176. valve info? NEC 30M-P25
  177. Recommended sources for SED EL 34s
  178. Golden Middle output transformers
  179. Help needed on tube rectification.
  180. NWWA DIY Audio Meet 2004
  181. Audio Research V70
  182. PSU choke value
  183. 4 Ohm on 25v Tap?
  184. The MDF amp chassis discusion reminds me...
  185. Tubed-out guitar affects
  186. SE used as step down OT
  187. Siemens E83f
  188. Enclosures in MDF.
  189. Tube tester and noise test
  190. Sovtek KT88 specifications not found :(
  191. Fisher 800C FM Stereo problem
  192. Soliciting Enthusiastic Recommendations for 50+WPC Kit or Design
  193. EL519/KT90 The old debate
  194. Plasma/ionic
  195. Another Fender on the bench.
  196. How much voltage won't kill me?
  197. Pcl84 / 15dq8
  198. Alliance Audio
  199. Opinions of Menno Vanderveen ( van der Veen ) PP Amps, Esp. Super-Triode
  200. Supertotem
  201. neon bulbs as grid voltage clamps
  202. Large caps in PSU without choke?
  203. Tube rectifier ?s
  204. resistors, capacitors, etc. NEED MORE INFO!
  205. Recitifaction is a pain in the butt? A few lame questions
  206. Hook-up Wire?
  207. Using Telefunken "Tank" transfomers for a single ended el84 amp?
  208. cathode follower with gain
  209. Got sparks in my GZ34!
  210. Duncans PSU designer and tube rectifier.
  211. I want to make a simple UL PP amp
  212. Phase splitter questions
  213. I want dizzy, why can't my speech show?
  214. I come from China, giving the same friends in a fondness for
  215. I come from China, giving the same friends in a fondness for
  216. Choke value?
  217. line voltage level
  218. SRPP & DACs
  219. Tube ageing ?
  220. Changing caps for preamp
  221. 845 PP and Lundahl 1620
  222. schematic for a push pull EL 509
  223. 6N1P preamp too much gain...
  224. Looking for a great DIY-Preamp for MICs (48v)
  225. Miniature 8pin socket
  226. Mesa Boogie Dual Caliber DC-3 schematic?
  227. Please help my MC240
  228. Hammond 125ese cheap in Europe?
  229. Critique for circuit of great value 805 SET?
  230. SE OPT's & Biasing
  231. Compact All-In-One Chassis Design with good ventilation. And low noise, Not a Schemat
  232. Newbie First Amp
  233. Audio Note P-2
  234. 300b?
  235. Power Supply and VR tube help!
  236. Tubes for direct-driving ESL
  237. Question about popping Noise
  238. tube preamp...opinions
  239. Help! I need TRW(UTC) O35 DATA
  240. Is this a good tube DIY kit to get?
  241. Best AC Heater Practices
  242. new hybrid amp turn on circuit
  243. dc phono
  244. screen-plate resistor and grid leak resistor
  245. Kr842vhd
  246. DRD 300b amplifier sound quality?
  247. Pre-amp selection
  248. tube buffer for TDA1543 based dac
  249. Does anybody know if a WE404 (5847) would be able...
  250. Transformer Question

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