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  1. Tube buffer for electronic keyboards used in a band?
  2. 6922 tube buffer
  3. 300B grid resistance
  4. 6AU6 Aikido in Triode mode?
  5. brown crud?
  6. Steve Bench's tube crossover
  7. Bogen M120 bass guitar amp coversion
  8. Wierd striation on 6L6GC plate
  9. LT1085-based regulated 6.3v heater supply
  10. Are these tubes cooked?
  11. New Build Power Up Advice
  12. Mic pre idea
  13. Choosing the right mullard design to match the Foreplay III and Ariels
  14. Dumb question on Coupling cap ratings...
  15. European Triode Festival 2008 - couple of seats left
  16. Building PRETOR toroid preamp
  17. ACT2 - ConradJohnson by 818design
  18. PS questions?
  19. Frank's Tube Database Down?
  20. Anybody try Euro DHTs like RE134, RE304 etc??
  21. Need help...again :)
  22. idea for a simple bias servo for AB PP
  23. GU-32/GI-30 tube PP amp
  24. Switch-mode PSU for tube heaters?
  25. Hammond Primary Lead color is wrong?
  26. A newbie need helps on the very 1st tube PreAmp
  27. why does 12u7 need certain amount of gain to stop hum 120???
  28. EL34 Pushpull imbalance
  29. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  30. Rozenblit Grounded Grid Cascode Pho Preamp Project
  31. Driving the kt88/6550 in set mode
  32. 6550a question for engineer?
  33. Yl1260
  34. Parts layout diagram for SE amp
  35. Da 42 Triode
  36. Bogen CHB100 Power Supply Question
  37. Testing of russian tubes on B&K 747B
  38. VR150 use
  39. First Valve DIY Project
  40. I'm having grid1 current in EL34
  41. anyone ever built a tube mixer similar to the RCA Living Stereo type??
  42. SEPTOR AT-amp (Anti-Triode) being built
  43. Sophia Electric el34 mods/upgrades
  44. Looking to build....
  45. Bias resistor for source follower driver
  46. PL 519 electrical characteristics
  47. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  48. My 6AS7G Fuse Link Checker
  49. Anyone ever had issues with One Electron?
  50. 35% off sale at RadioDaze
  51. phase splitter with Tr ?
  52. Chasing my Simple SE problem...
  53. Zenith stereo, EL84 SE. What to do...
  54. Free TVA-1 rev.3 schematic
  55. Bat Vk-60
  56. Trouble with amp 6V6
  57. 5-125 UL curves anyone?
  58. Mod it or scrap it?
  59. Bogen M330
  60. 1st Tube Amp - What to build?
  61. 6J5 weird phase inverter
  62. swinging CCS PP output stage
  63. Varying 2 tube amp characteristics: SE treble and richness
  64. Jadis Defy 7 Schematic
  65. microphonic sub-miniature tubes?
  66. Transformer distortion (THD)
  67. Options for replacing EF86? E180F?
  68. changing an integrated tube amp to a power amp
  69. Nice tube test supply
  70. Looking for 300B 2.5V heater vendor
  71. Cap to bypass bias battery
  72. 2A3 SE parafeed with PP-transformer
  73. Preamp Voltages
  74. TVA-1 "Export" circuit/schematic?
  75. 12ax7 series is this correct??
  76. Yet Another Phono Stage Suggestions Thread
  77. 15% off sale at Soniccraft
  78. Bias Mode Switching Question (guitar Amp)
  79. Sizing Coupling Capacitors
  80. budget xformer for 829B pentode mode PP (class AB) ?
  81. preamp layout suggestions please
  82. Capacitors and hype!
  83. Transofrmer secondaries
  84. please help 407a
  85. OPT Grounding / Crosstalk
  86. SE With shared Rk in output
  87. Unsolved problem EL34/12AT7/5AR4
  88. Radford STA25 service UK
  89. My tube DIY Web page, translate into English
  90. suggestion about AIKIDO PRE
  91. jackson tube tester 648s manuals
  92. Hashimoto A-105 - 6S4A
  93. Looking For Counterpoint SA2000 Schematic
  94. Where do you put the standby switch
  95. Simple SE Schematic
  96. Operating point for 6GK5
  97. Audio Research St-70-c3
  98. Help identifying tube amp
  99. Ed8000
  100. power suply for Pre & Phono Use tube 6BM8
  101. ESLDD with "anti-triode"
  102. Schematics border patrol psu
  103. Tubelab PCBs for an 845 - a good idea?
  104. Bias supply idea
  105. dynaco st 70 c3
  106. KT88 and the 6550
  107. crate vintage club problem
  108. GM70/GM70 parafeed SET?
  109. Genalex repro KT88s
  110. Grid - Screen Alignment (X-Rays)
  111. tube matching
  112. DC heaters for 5687 in Aikido?
  113. Connection Jensen 4-pole
  114. Measuring Output Power
  115. Modelling stereo PSU in PSUD ...
  116. Speaker matching transformer.
  117. Sowter's Radford transformer
  118. Cathode bias 6LU8 UL/Triode
  119. Cathode bias 6LU8 UL/Triode
  120. Sourcing ASC 100uf X386S capacitor
  121. Looking for a linear triode for lowish B+ CF (6N6P?)
  122. need spice model 5814a
  123. 420T or 10E/33B ?????????
  124. Decca DMI-73 and EL-84 weirdness
  125. DIY JTM 45/100 Style Guitar Amp
  126. Pentode guys: important to decouple g2 supply between stages?
  127. Ccs
  128. The Friday Chuckle
  129. Need help deciding what to build
  130. Why does red plate spell early death?
  131. Odd transformer with 6X4 tube mounted on top.. smoking more than my uncle Frank
  132. fisher 400 tweaking issues
  133. GM70 an 813 strapped in SE-UL - circuits?
  134. need help on transformer secondaries connection
  135. Partridge audio output transformer value
  136. Low mu Preamp Triodes as Power Output Tubes
  137. 300B Transformer temperature
  138. Standby Switch Problems
  139. Worth repairing?
  140. Measuring current distortion
  141. GM70 sockets?
  142. high AC mains problem
  143. 250 V PSU help
  144. EL34 UL Curves
  145. datasheet for ge 5star and rca command 5814a?
  146. PS choke voltage/current quetsion
  147. push pull power amp design question (a lot of actually :) )
  148. Knight Amplifier Repair Question
  149. Grant G100AS circuit diagram?
  150. Hashimoto A-105 - summary so far
  151. Related Audio Worlds largest
  152. Why do valves go microphonic?
  153. Allen Wright Superreg manual
  154. Need help on resistor values for 5687 aikido kit
  155. Pioneer SM83 PP amps
  156. Techtube valves/tubes
  157. Datasheet for Russian 6p3s-e
  158. Continually Blowing Fuses
  159. I am done with AES -- a short rant.
  160. CineMag CMMI-15/15B
  161. In market for a Capacitor meter - for a tube project!
  162. What amp(s) would you buy under $1500
  163. Etf 2008
  164. All FET Aikido
  165. what 12au7 have different tone ??vintage and modern
  166. Can 3.5W 2A3 amp drive proAc 1SC?
  167. British seven pin sockets
  168. Pentodes, triode mode and grid screen dissipation 101
  169. Yakov Aronov amps
  170. Suitable tube pre-amp for Phase Linear 400?
  171. Goldpoint value?
  172. TubelabSE 300B power transformer ?
  173. 316A socket
  174. Hashimoto A105 - some results (ECC99)
  175. Some uses for old transformers
  176. Power Supply Question
  177. PY82 as rectifier
  178. Jackson 637 Tube tester Info needed
  179. pro-ject tube box
  180. Some dumb Questions on Heater CCS supply
  181. Aikido loses power?
  182. Quicksilver 8417/12FQ7 mods
  183. Calculations for an AIKIDO
  184. Music Angel Empty shells
  185. Enclosure for tube amp/speaker/reverb unit
  186. Need help troubleshooting preamp trouble
  187. Compactrons on the brain!
  188. XSE vs. GSXE Edcors
  189. output transformer
  190. How to simulate OPT in LTspice?
  191. 311-b
  192. PSU Design help !!!
  193. BDT Preamp build
  194. Russian tubes / capacitors purchasing
  195. Bored with Leak ST20 - ideas?
  196. KT-88 Music Angel problems with sound level
  197. Fusion Hybrid 300B
  198. I'm new here..... :(
  199. DIY/Buy/Kit
  200. Ralph from Atma-sphere will be giving a talk 09/16
  201. Modified USB DAC board, DDDAC with triode buffer
  202. LS50/GU50 Both Grid Drive
  203. Aikido filament question
  204. 6l6 Se.
  205. Feedback requested on 7591 PP design
  206. Blackburn Mullard/Philips video
  207. DIY sheilded B+ cable
  208. Experimenters Tube Sockets
  209. Used freebies precipitate questions
  210. Mains toroid as IT with DC balance?
  211. Tubes for Viva Solista 845 SET amp
  212. SE transformer for PP duty?
  213. Warning: new SS relay question / No flame I
  214. Tube Haunts Thread?
  215. Problem with Maida regulator
  216. 2 stage SE IT coupled amps..
  217. BUF420M Current Sink
  218. Direct from the mains?
  219. PSU capacitors: 30uF film ok instead of 100uF electrolytic?
  220. Annealed silicon core opt`s
  221. Designing a "cheap" highish-power PP amp...
  222. Improvements for the Mikael Abdellah KT88???
  223. DC supply on driver tube hums..
  224. Sun Audio SV-2A3
  225. Mullard Blackburn Tube Factory Tour Video
  226. SE amp: Please suggest a better operating point
  227. Paralleling Outputs or Bi-amp
  228. triple triode common cathode - only want to use 2 triodes
  229. Luxman 3045 Mono Block Tube Amp
  230. Eye tube for balancing multi amp system
  231. 12ax7 preamp.
  232. External PSU for Quad 22 pre-amplifier
  233. Keep Blowing Fuses
  234. learning tube rectified psu
  235. 17JB6... guitar amp?
  236. Series of Diode on HT Plate
  237. Quad II power amps......power output transformers!!!
  238. Mullard (factory) making tubes again
  239. CFB and A2 operation
  240. DIY triode
  241. Interesting symmetrical amp from 1955 magazine
  242. 6N23P, 6S19P anybody knows?
  243. Worlds smallest HiFi valve amp
  244. A DIY Interruptus Moment
  245. Noisy EL84 amp needs new front end
  246. Loosening up magnetic "stiction"
  247. The Return Of Blackburn Mullards?
  248. Can I use different value cap?
  249. tubelab SimpleSe power transformer connection question
  250. need output transformer for Fisher

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