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  1. Output transformer issues...
  2. Tube sockets with the same pin spacing as the tube
  3. Help needed with preamp.
  4. VSE RTP5 linestage comments
  5. VSE RTP5 linestage comments
  6. Futterman OTL ferrite bead specification
  7. common anode capacitor for both sections
  8. How good are cheap tranny-interstages
  9. Favorite bias measuring and metering methods?
  10. Suitable regulated/filtered 4volt battery-valve power supply suitable for 6+ valves?
  11. Newbie Transformer Secondary Combination Qs--Plitron Example
  12. Zenith Wavemagnet Help Please !!!
  13. Audio research vs55/VT50/VT100
  14. quad 6bm8 per channel
  15. Tubes from St.Petersburg, Russia?
  16. Tube preamplifier
  17. Seeking suggestions on slowing B+ turn on
  18. Help on Brute force
  19. 6SL7 or 12AX7 in Kimmel OTL
  20. What´s wrong with Hammond 1628SE?
  21. Input stages - to decouple B+ or not?
  22. valve info? NEC 30M-P25
  23. Recommended sources for SED EL 34s
  24. Golden Middle output transformers
  25. Help needed on tube rectification.
  26. NWWA DIY Audio Meet 2004
  27. Audio Research V70
  28. PSU choke value
  29. 4 Ohm on 25v Tap?
  30. The MDF amp chassis discusion reminds me...
  31. Tubed-out guitar affects
  32. SE used as step down OT
  33. Siemens E83f
  34. Enclosures in MDF.
  35. Tube tester and noise test
  36. Sovtek KT88 specifications not found :(
  37. Fisher 800C FM Stereo problem
  38. Soliciting Enthusiastic Recommendations for 50+WPC Kit or Design
  39. EL519/KT90 The old debate
  40. Plasma/ionic
  41. Another Fender on the bench.
  42. How much voltage won't kill me?
  43. Pcl84 / 15dq8
  44. Alliance Audio
  45. Opinions of Menno Vanderveen ( van der Veen ) PP Amps, Esp. Super-Triode
  46. Supertotem
  47. neon bulbs as grid voltage clamps
  48. Large caps in PSU without choke?
  49. Tube rectifier ?s
  50. resistors, capacitors, etc. NEED MORE INFO!
  51. Recitifaction is a pain in the butt? A few lame questions
  52. Hook-up Wire?
  53. Using Telefunken "Tank" transfomers for a single ended el84 amp?
  54. cathode follower with gain
  55. Got sparks in my GZ34!
  56. Duncans PSU designer and tube rectifier.
  57. I want to make a simple UL PP amp
  58. Phase splitter questions
  59. I want dizzy, why can't my speech show?
  60. I come from China, giving the same friends in a fondness for
  61. I come from China, giving the same friends in a fondness for
  62. Choke value?
  63. line voltage level
  64. SRPP & DACs
  65. Tube ageing ?
  66. Changing caps for preamp
  67. 845 PP and Lundahl 1620
  68. schematic for a push pull EL 509
  69. 6N1P preamp too much gain...
  70. Looking for a great DIY-Preamp for MICs (48v)
  71. Miniature 8pin socket
  72. Mesa Boogie Dual Caliber DC-3 schematic?
  73. Please help my MC240
  74. Hammond 125ese cheap in Europe?
  75. Critique for circuit of great value 805 SET?
  76. SE OPT's & Biasing
  77. Compact All-In-One Chassis Design with good ventilation. And low noise, Not a Schemat
  78. Newbie First Amp
  79. Audio Note P-2
  80. 300b?
  81. Power Supply and VR tube help!
  82. Tubes for direct-driving ESL
  83. Question about popping Noise
  84. tube preamp...opinions
  85. Help! I need TRW(UTC) O35 DATA
  86. Is this a good tube DIY kit to get?
  87. Best AC Heater Practices
  88. new hybrid amp turn on circuit
  89. dc phono
  90. screen-plate resistor and grid leak resistor
  91. Kr842vhd
  92. DRD 300b amplifier sound quality?
  93. Pre-amp selection
  94. tube buffer for TDA1543 based dac
  95. Does anybody know if a WE404 (5847) would be able...
  96. Transformer Question
  97. New preamp
  98. Fisher 800c neg bias problem
  99. Seek your comments on 71a tube amp
  100. Single-Ended 6V6 Questions
  101. El509 Plate current question
  102. Building a Pre-Amplifier
  103. cathode bias in OTL??
  104. 10y-IT-10Y SE amp
  105. Any schematics for balanced line driver using 6922?
  106. Would you buy EI EL509/EL519 in an Octal Package?
  107. A Noisey CAT SL1 Reference
  108. Plate color and getter
  109. Learning to interpret the performance curves for KT88
  110. 811A in P.S.E or P/P
  111. Quick help needed! LOTs of noise in BBMCCCS loaded /0A2 regulated preamp!
  112. power output calculations, rated power and required power output
  113. Please help with Stancor A-4416
  114. transformers, read me!!!!
  115. Source for archive cd of Sound Practices Magazine
  116. PSE with 6C41C
  117. cathode follower
  118. Orientation and Horizontal Mounting
  119. Newbie on cathode curves
  120. transformers, regulation, triode-connection...
  121. 1st tube project - newbie tranny question
  122. NOS supply
  123. AN7 prototype- variation?
  124. Help needed with 805 sets
  125. controlling heat in tube amps.
  126. Suround Tube Amp?
  127. PSUD Model Hack
  128. advice about project wanted (newbie)
  129. Newly CCS circuit from Pimm
  130. simple matching philosophy on tubes..
  131. A good source for PIO & HV Resistors??
  132. ARC SP8 schematic
  133. some questions...
  134. 6KD6 For OTL??
  135. Rogers Cadet III PU Adapter
  136. G2-driven 6BM8
  137. Appropiate cabling quality & Regulators
  138. Tubes.Ru
  139. Buy 6C33 in Canada, where?
  140. A simple OTL??
  141. Allan Kimmel OTL
  142. sansui au111 output transformer
  143. JJ capacitors
  144. How many rectifiers?
  145. Can I use LT1083 as a CCS load?
  146. What front end for PP - triode, pentode, mu-stage or differential triodes?
  147. Electro-Harmonix 6SN7EH
  148. hehe
  149. Any DHT PX25 DIY user here???
  150. 6216 beam pentode question
  151. comments on this design..
  152. Parallel single ended or push-pull?
  153. amp measurements
  154. Extremely low power first amp problem
  155. Are these Caps any good?
  156. ...in SE mode !
  157. Simple 6BM8 at Evolve Power Amps?
  158. Newbie needs help. Basic PSU design and choke question.
  159. Audio Innovations 800 (series 2)
  160. 12B4A PP schematic
  161. Breakdown between solder tags?
  162. Caps topology
  163. questions about tubeamp building
  164. Antonio Tucci
  165. Choke Load or WOT
  166. Amp identification wanted
  167. tubes or not..!
  168. Vitreous Enamel vs Wirewound Resistor
  169. Will Simple 5687 or Etude 12b4A drive headphones?
  170. For Info: We91 Fans
  171. Just finished my new 300B amp
  172. tape alignment hell
  173. caps for RIAA network
  174. tube based CCS
  175. Tube brands.. who is best/most popular..
  176. Vintage Oil Caps
  177. Please critique this 2A3 SE schematic!
  178. KT-88 Ella amplifier, how to lower noise?
  179. PSU2 and power transformer question.
  180. Possible to make a KT88 PP UL schemat OTL ?
  181. Using 12 EL519 for T8
  182. what film capacitors do you use?
  183. 6550, kt88's at 600+ Volts
  184. circuit diagram to build my DIY preamp
  185. The rule to calculate the load impedance of two or more valvces connected in parallel
  186. no capacitors!
  187. SJS SE 300B with Interstage Transformer Mk2
  188. Differential input stage for T8 OTL-OCL from newbie
  189. Scott LK72 output transformer quality ?
  190. Van Scoyoc SRPP Amp - GvT
  191. Newbie/Guitar Amp BOOK recommendation
  192. Hammond PT and KT88 Design costs.
  193. direct coupling
  194. NFB question
  195. ebooks/online literature...
  196. First time tube jitters...
  197. Audio Note Kageki vs. EAR 859 vs. Audio Innovations: The First
  198. Where is the best place to add tubes in this system?
  199. Anyone seen one?
  200. newbie and i mean new
  201. Differential amp, Long tail, Split load - what difference in sonics?
  202. IC geometry
  203. Fully silver hard wired
  204. Possible damage of a 5AS4 full-wave rect...
  205. direct coupling
  206. Good 6L6 schematic needed
  207. I could lose some heat - suggestions?
  208. Svetlana Svetlana EL509-II: Please disregard all my statements about this tube!
  209. help using Tube Tester
  210. @Tanberg owners. help needed..
  211. Electro Harmonix KT90 after 200hrs use
  212. Need suggestions on tube regulator.
  213. EAR 859 questions
  214. First build from scratch.
  215. Tanberg design..
  216. How to use Russian tube 6H6
  217. Are Svet EL509s really EL509s?
  218. Resistors and Capacitors
  219. simple design power amp.. wanted.
  220. SJS SE108Mk2 Amplifier layout.
  221. Free Auctions?
  222. measuring wattage?
  223. Seeking advise on my EL34 amplifier
  224. exchange
  225. CCS in tail of differential phase splitter
  226. Quicksilver 6550A's?
  227. Is this mod worth the effort?
  228. Current sourced heaters
  229. Manual for Tube Technology - Unisis Signature
  230. Valve amp with Dynaudio?
  231. Why can 8W sound as loud as 100W?
  232. Progress of my 813 SE
  233. NOS Tubes
  234. Would it be possible? OTL/OCL KT88?
  235. KT88EH matched quad auction, Fake?!
  236. Interstage attenuation transformer?
  237. HV ON noise
  238. Opinions on Walton Audio 300B Design
  239. Joplin Amp
  240. voltage regulators
  241. CCS for PP Class A output stage?
  242. distortion measurement
  243. Has anybody built the Matthew Reidsma Experimental 45?
  244. Citation II Assembly Manual
  245. what tube preamp DIY kit to match B&W P-5 speakers
  246. heavy duty valve amps.... for PA use....?
  247. Audio Innovation 800 mk2 ? advice?
  248. Tube amps.......AGAIN
  249. driver 6a3
  250. Morgan Jones H/P Amp problems PLEASE HELP

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