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  1. 3 Electrode gas regulators
  2. Mod to an old radio
  3. Replacing a driver tube in an existing EL84 SE Amp
  4. 813 valves
  5. Acro TO-300 output transformer
  6. Anyone have a picture of the Silver Seven?
  7. good sound with cheapo chokes
  8. Questions about a choke
  9. max DC-current for an unknown PS- Choke?
  10. Availability of 6C33C tubes? I need some for OTL amps
  11. 7805 regulated 5V supply
  12. Setting Pentode Screen Grid Voltage
  13. More 6158/13D3
  14. Best PSU.
  15. Low power tube amp for headphones
  16. Basic question on 6922
  17. LM317 current regulator
  18. DHT Triode Amp Project
  19. tube preamp for Zen?
  20. online tube equivalent chart
  21. Help!! Right Channel Freq distorted.
  22. first design by me! need feedback
  23. ECL86 preamp?
  24. Regulator/Choke/Cap
  25. Request for valve pics...
  26. SS PSU without choke
  27. Double EL84 Push-Pull supply
  28. 12AU7 vs 12BH7 vs 6CG7
  29. What should i look for
  30. Quicksilver Tranny Question
  31. Using my O-scope on Tube amp
  32. Solid State DC filament supply
  33. hybrid common cathode amplifier?
  34. St-70
  35. Best 300B project
  36. modifications to compact EL84 amp
  37. I need a few good (tube) men
  38. can i substitute 12ax7 for 12ax7a
  39. Kailin CMPDH300 Tube Power Amplifier
  40. Opinions and ideas on my new amp
  41. Some trouble reading schematics
  42. 6C33C-B Valve Preamplifier
  43. Filament wiring question
  44. What to do with these tubes?
  45. OTL, continued...
  46. Gas tube cathode load?
  47. I really would like your help on my 300B project
  48. How to cut holes for tubes
  49. Push Pull DHT triode
  50. Building tube stage with PCB, why?
  51. What language is this web page on?
  52. WE308B Production
  53. RCA Tube Factory Tour
  54. Ultralinear vs SE
  55. suparatek syrah
  56. triode => I.T. =>el84 good idea ?
  57. EL34 based amp... Eico HF-87 maybe?
  58. schematics from pre-amp stage to implement in cd-player with E88CC in stead of OPAMPS
  59. Parallel PP EL84 and ouput transformer question
  60. Question about transformer positioning.
  61. JE Labs 300b round 5. MUSIC!! MUSIC!!
  62. Need help with caps for my 1960 fisher
  63. Lundahl vs. One Electron
  64. Push pull dht triode with diode bias
  65. My next project (maybe).
  66. arc ls 5 sch
  67. I'm so glad I found this place!
  68. What does coupling mean?
  69. GU-19-1 Russian tube
  70. Power Amplifier Sensitivity
  71. The Bias Forum
  72. RCA LMI-32219 amp
  73. Solid state guy found some tubes...
  74. Simple Plans for Newbies...
  75. Tentative EL84 SE Design.
  76. bridge mono tube amp
  77. next project
  78. A wiring question.
  79. Several reports of Black Gates failing
  80. How to get good Fuzz from a Guitar-amp project.
  81. Is PSE is a poor relation?
  82. Current requirements of 6SN7 and 5692 tubes
  83. S5 Amp kit Power supply for UK
  84. Diy Ankoru Help
  85. My 300b SE amp
  86. ecl86&ecc85 scheme
  87. 5687 filament question
  88. EL34 Blue GLow
  89. 811a Class A2
  90. 6SN7 - SuperPreamp AE-3 - what is
  91. Building 8x2 tube line mixer
  92. Building 8x2 tube line mixer
  93. tube amp
  94. The sound of chassis?
  95. tube x-over noise redux
  96. JE Labs 300b round 4. Wiring, HELP!!!
  97. simple, cheap, great sounding tube amp?
  98. dist on clean tone
  99. mic preamp DIY online
  100. JE Labs 300b round 3. Chassis are Done
  101. Question about using RCA jacks.
  102. Tube Test Power Supply
  103. #19 biased class A
  104. Damping factor? High or low?
  105. This is incredible!--An audio epiphany!!
  106. Triode sound in my car :-) -> How to?
  107. Adding Treb and Bass adjustment?!
  108. Steve Bench cap "tests"
  109. Time Delay Relay Tubes
  110. My Setup and skillset
  111. High dollar power cords ...Myth or magic
  112. Completely new to building amplifiers
  113. Solid or stranded wire for hookup?
  114. The sound of parts
  115. Anyone play with Glow Tubes?
  116. basic e88cc line stage ?
  117. DIY Preamp for Transcendent 150w
  118. Need help with circuit operation. Please.
  119. Which amp for Jordan JX92S Tline ?
  120. Toroid OPTs
  121. Choke Snubber
  122. I met unreasonable unbalanced status!!
  123. schematics for a EL509/ EL519 PP amp needed
  124. Want Tubes - Check this out!!!!
  125. NFB volume control
  126. Tube amp for my Speakers
  127. Quicksilver KT88 mono 60watt amp schematic
  128. Help needed for Marantz 7 clone
  129. SE amp with EL509/6KG6A (help)
  130. a 71A monoblock
  131. DIY and SONY SUPER GRAPHICS
  132. Tube preamp similar to Foreplay
  133. Bass Guitar Tube Amp
  134. Using common mode chokes in filament supply.
  135. Very early tube opamp - Philbrick
  136. JE Labs 300b round 2 1/2 Copper Plates
  137. AC filament supply tweaks?
  138. LL1663 -> 4,6K instead of 5K?
  139. tantalum
  140. SE Tube Preamp circuit using 6922/6dj8 at low voltage(24volt) needed! anyone?
  141. Using a Preamp and no central amp.
  142. Metal film resistors or carbon film in a tube amp?
  143. Audion Sliver Knight Circuit Diagram
  144. WE91 ps caps
  145. Schematic help
  146. TUBE AMP Kenwood KW-40??
  147. screened cable and shielded E88CC
  148. JCM800 as a poweramp, the signal level
  149. Time for low Zout preamp
  150. Ppp 6cg7/6sn7
  151. My first tube preamp
  152. 64 bits and 3 valves
  153. First time Tube Amp
  154. DHT triode push pull amplifier design
  155. russian 6d22c tube
  156. Convergent Audio Technology SL-1 MK3 SCH
  157. Tubecad is back up and running
  158. change to grid choke?
  159. The tube x-over DOES work, but....
  160. Biasing heater supply above ground.
  161. More situation description
  162. 6c9 ??
  163. help! power supply voltage issue
  164. regulated 5V DC supply
  165. Any suggestions to 6aw8a (GE) application?
  166. EL84 BIAS problem - again....
  167. Any other sub for KT 88 output tubes?
  168. Philips HF10 amp not working
  169. Model 91 schematic?
  170. Ability of a PP 2A3 amp to drive 90db speakers?
  171. Potting transformers
  172. ECL 82 low power end tube
  173. Can you adapt a computer power supply for the 5v and 6.3 volt needs?
  174. Single-ended: Triodes or pentodes?
  175. A preamp using a number 26 tube?
  176. PSRR For 6SN7 Buffer?
  177. comment on this design, please.
  178. why not E88C
  179. Another Aopen mother board with tubes
  180. 5894 United Electron 1973
  181. Original Lectron EL34 tubes?
  182. Interstage - is it pointless?
  183. Good tube DIY for EL34's?
  184. 8068
  185. CAT SL-1 Sig MkII
  186. Altec 1570B amps
  187. old power supply tip
  188. The complete 6SN7 preamp
  189. Bottlehead Paramour vs Decware Zen Triode?
  190. 6080/6AS7/6H13C/6H5C in SE?
  191. Emperors new clothes and the sound of tubes
  192. Advantage of Tube Output stage on Preamp?
  193. i want to replace my wima caps in my valve amp is there better out there
  194. power supply for tube preamp
  195. Newbie's 1st Amp, comments please.
  196. 6C33C and GM-70
  197. Totally baffled
  198. Cathode follower driver stage
  199. ASL Wave amp on the Fritz
  200. Tube Question, what the....?
  201. DIY Tube Preamp
  202. EL509/519 -> 6LF6 Adapter
  203. What is this?
  204. Tube rectifiers
  205. Jolida tube amp grounding???
  206. Biasing Push Pull Triode amp into Class A
  207. Tube compressors/limiters
  208. 7 ch Amp kits?
  209. Can I use 4 pr 65 a for audio amp?
  210. Picture of my first project 300B
  211. Hammond 850Q Interstage?
  212. Need help finding simple part for project
  213. 6SN7 troubles!! Help.
  214. Scott LK-72 kit tube amp
  215. Converting AMPEX PR-10
  216. Do I have this CCS configured correctly? Tube preamp..
  217. My current 71a amp
  218. Where to by a tube amp chasis?
  219. JE Labs 300b round 2! layout
  220. OTL Help
  221. Picture of my first tube amp
  222. Your thoughts please
  223. Mcintosh Output Transformers
  224. signal wire
  225. Using 866A Mercury Vapour Rectifiers?
  226. Progress on my JE Labs 300B
  227. Marantz T-1
  228. SE 6c41c/6s41s amp
  229. the unstable sound from tube pre-amp !
  230. Info on Croft Integrated Amp
  231. My first amp: Grounding
  232. how do I increase the bass in 12B4 pre-amp?
  233. DIY curve tester
  234. Anyone has a copy of the superreg of Allan Wright's design
  235. Is this a C core OPT?
  236. Tube Makers
  237. Je labs 300b round 1 : Ding! Ding!
  238. Can someone help me with DIY hybrid preamp? 2sk170 - 6dj8 - cascode
  239. neophyte - transformer potting
  240. Tube CAD Question
  241. Pioneer TX-5A Tuner
  242. Testing Tubes
  243. my first amp: the PSU
  244. Tube Amp Questions
  245. Check my first design, 6900/2A3 IT
  246. EL84 BIAS - how much ??
  247. Best 300B SE OPT?
  248. About tube tape recorder heads
  249. KronZilla
  250. hows this for linear?