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  1. Steve Bench's tube crossover
  2. Wierd striation on 6L6GC plate
  3. LT1085-based regulated 6.3v heater supply
  4. Are these tubes cooked?
  5. New Build Power Up Advice
  6. Choosing the right mullard design to match the Foreplay III and Ariels
  7. Dumb question on Coupling cap ratings...
  8. European Triode Festival 2008 - couple of seats left
  9. Building PRETOR toroid preamp
  10. ACT2 - ConradJohnson by 818design
  11. PS questions?
  12. Frank's Tube Database Down?
  13. Anybody try Euro DHTs like RE134, RE304 etc??
  14. Need help...again :)
  15. idea for a simple bias servo for AB PP
  16. GU-32/GI-30 tube PP amp
  17. Switch-mode PSU for tube heaters?
  18. Hammond Primary Lead color is wrong?
  19. A newbie need helps on the very 1st tube PreAmp
  20. why does 12u7 need certain amount of gain to stop hum 120???
  21. EL34 Pushpull imbalance
  22. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  23. Rozenblit Grounded Grid Cascode Pho Preamp Project
  24. Driving the kt88/6550 in set mode
  25. 6550a question for engineer?
  26. Yl1260
  27. Parts layout diagram for SE amp
  28. Da 42 Triode
  29. Bogen CHB100 Power Supply Question
  30. Testing of russian tubes on B&K 747B
  31. VR150 use
  32. First Valve DIY Project
  33. I'm having grid1 current in EL34
  34. anyone ever built a tube mixer similar to the RCA Living Stereo type??
  35. SEPTOR AT-amp (Anti-Triode) being built
  36. Sophia Electric el34 mods/upgrades
  37. Looking to build....
  38. Bias resistor for source follower driver
  39. PL 519 electrical characteristics
  40. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  41. My 6AS7G Fuse Link Checker
  42. Anyone ever had issues with One Electron?
  43. 35% off sale at RadioDaze
  44. phase splitter with Tr ?
  45. Chasing my Simple SE problem...
  46. Zenith stereo, EL84 SE. What to do...
  47. Free TVA-1 rev.3 schematic
  48. Bat Vk-60
  49. Trouble with amp 6V6
  50. 5-125 UL curves anyone?
  51. Mod it or scrap it?
  52. Bogen M330
  53. 1st Tube Amp - What to build?
  54. 6J5 weird phase inverter
  55. swinging CCS PP output stage
  56. Varying 2 tube amp characteristics: SE treble and richness
  57. Jadis Defy 7 Schematic
  58. microphonic sub-miniature tubes?
  59. Transformer distortion (THD)
  60. Options for replacing EF86? E180F?
  61. changing an integrated tube amp to a power amp
  62. Nice tube test supply
  63. Looking for 300B 2.5V heater vendor
  64. Cap to bypass bias battery
  65. 2A3 SE parafeed with PP-transformer
  66. Preamp Voltages
  67. TVA-1 "Export" circuit/schematic?
  68. 12ax7 series is this correct??
  69. Yet Another Phono Stage Suggestions Thread
  70. 15% off sale at Soniccraft
  71. Sizing Coupling Capacitors
  72. budget xformer for 829B pentode mode PP (class AB) ?
  73. preamp layout suggestions please
  74. Capacitors and hype!
  75. Transofrmer secondaries
  76. please help 407a
  77. OPT Grounding / Crosstalk
  78. SE With shared Rk in output
  79. Unsolved problem EL34/12AT7/5AR4
  80. Radford STA25 service UK
  81. My tube DIY Web page, translate into English
  82. suggestion about AIKIDO PRE
  83. jackson tube tester 648s manuals
  84. Hashimoto A-105 - 6S4A
  85. Looking For Counterpoint SA2000 Schematic
  86. Where do you put the standby switch
  87. Simple SE Schematic
  88. Operating point for 6GK5
  89. Audio Research St-70-c3
  90. Help identifying tube amp
  91. Ed8000
  92. power suply for Pre & Phono Use tube 6BM8
  93. ESLDD with "anti-triode"
  94. Schematics border patrol psu
  95. Tubelab PCBs for an 845 - a good idea?
  96. Bias supply idea
  97. dynaco st 70 c3
  98. KT88 and the 6550
  99. GM70/GM70 parafeed SET?
  100. Genalex repro KT88s
  101. Grid - Screen Alignment (X-Rays)
  102. tube matching
  103. DC heaters for 5687 in Aikido?
  104. Connection Jensen 4-pole
  105. Measuring Output Power
  106. Modelling stereo PSU in PSUD ...
  107. Speaker matching transformer.
  108. Sowter's Radford transformer
  109. Cathode bias 6LU8 UL/Triode
  110. Cathode bias 6LU8 UL/Triode
  111. Looking for a linear triode for lowish B+ CF (6N6P?)
  112. need spice model 5814a
  113. 420T or 10E/33B ?????????
  114. Decca DMI-73 and EL-84 weirdness
  115. Pentode guys: important to decouple g2 supply between stages?
  116. Ccs
  117. The Friday Chuckle
  118. Need help deciding what to build
  119. Why does red plate spell early death?
  120. Odd transformer with 6X4 tube mounted on top.. smoking more than my uncle Frank
  121. fisher 400 tweaking issues
  122. GM70 an 813 strapped in SE-UL - circuits?
  123. need help on transformer secondaries connection
  124. Partridge audio output transformer value
  125. Low mu Preamp Triodes as Power Output Tubes
  126. 300B Transformer temperature
  127. Standby Switch Problems
  128. Worth repairing?
  129. Measuring current distortion
  130. GM70 sockets?
  131. high AC mains problem
  132. 250 V PSU help
  133. EL34 UL Curves
  134. datasheet for ge 5star and rca command 5814a?
  135. PS choke voltage/current quetsion
  136. push pull power amp design question (a lot of actually :) )
  137. Knight Amplifier Repair Question
  138. Grant G100AS circuit diagram?
  139. Hashimoto A-105 - summary so far
  140. Related Audio Worlds largest
  141. Why do valves go microphonic?
  142. Allen Wright Superreg manual
  143. Need help on resistor values for 5687 aikido kit
  144. Pioneer SM83 PP amps
  145. Techtube valves/tubes
  146. Datasheet for Russian 6p3s-e
  147. Continually Blowing Fuses
  148. I am done with AES -- a short rant.
  149. CineMag CMMI-15/15B
  150. In market for a Capacitor meter - for a tube project!
  151. What amp(s) would you buy under $1500
  152. Etf 2008
  153. All FET Aikido
  154. what 12au7 have different tone ??vintage and modern
  155. Can 3.5W 2A3 amp drive proAc 1SC?
  156. British seven pin sockets
  157. Pentodes, triode mode and grid screen dissipation 101
  158. Yakov Aronov amps
  159. Suitable tube pre-amp for Phase Linear 400?
  160. Goldpoint value?
  161. TubelabSE 300B power transformer ?
  162. 316A socket
  163. Hashimoto A105 - some results (ECC99)
  164. Some uses for old transformers
  165. Power Supply Question
  166. PY82 as rectifier
  167. Jackson 637 Tube tester Info needed
  168. pro-ject tube box
  169. Some dumb Questions on Heater CCS supply
  170. Aikido loses power?
  171. Quicksilver 8417/12FQ7 mods
  172. Calculations for an AIKIDO
  173. Music Angel Empty shells
  174. Need help troubleshooting preamp trouble
  175. Compactrons on the brain!
  176. XSE vs. GSXE Edcors
  177. output transformer
  178. How to simulate OPT in LTspice?
  179. 311-b
  180. PSU Design help !!!
  181. BDT Preamp build
  182. Russian tubes / capacitors purchasing
  183. Bored with Leak ST20 - ideas?
  184. KT-88 Music Angel problems with sound level
  185. Fusion Hybrid 300B
  186. I'm new here..... :(
  187. DIY/Buy/Kit
  188. Ralph from Atma-sphere will be giving a talk 09/16
  189. Modified USB DAC board, DDDAC with triode buffer
  190. LS50/GU50 Both Grid Drive
  191. Aikido filament question
  192. 6l6 Se.
  193. Feedback requested on 7591 PP design
  194. Blackburn Mullard/Philips video
  195. DIY sheilded B+ cable
  196. Experimenters Tube Sockets
  197. Used freebies precipitate questions
  198. Mains toroid as IT with DC balance?
  199. Tubes for Viva Solista 845 SET amp
  200. SE transformer for PP duty?
  201. Warning: new SS relay question / No flame I
  202. Tube Haunts Thread?
  203. Problem with Maida regulator
  204. 2 stage SE IT coupled amps..
  205. BUF420M Current Sink
  206. Direct from the mains?
  207. Annealed silicon core opt`s
  208. Designing a "cheap" highish-power PP amp...
  209. Improvements for the Mikael Abdellah KT88???
  210. DC supply on driver tube hums..
  211. Sun Audio SV-2A3
  212. Mullard Blackburn Tube Factory Tour Video
  213. SE amp: Please suggest a better operating point
  214. Paralleling Outputs or Bi-amp
  215. triple triode common cathode - only want to use 2 triodes
  216. Luxman 3045 Mono Block Tube Amp
  217. Eye tube for balancing multi amp system
  218. 12ax7 preamp.
  219. External PSU for Quad 22 pre-amplifier
  220. Keep Blowing Fuses
  221. learning tube rectified psu
  222. Series of Diode on HT Plate
  223. Quad II power amps......power output transformers!!!
  224. Mullard (factory) making tubes again
  225. CFB and A2 operation
  226. DIY triode
  227. Interesting symmetrical amp from 1955 magazine
  228. 6N23P, 6S19P anybody knows?
  229. Worlds smallest HiFi valve amp
  230. A DIY Interruptus Moment
  231. Noisy EL84 amp needs new front end
  232. Loosening up magnetic "stiction"
  233. The Return Of Blackburn Mullards?
  234. Can I use different value cap?
  235. tubelab SimpleSe power transformer connection question
  236. need output transformer for Fisher
  237. help for E182CC linestage/driver
  238. User Beware: A Report On Jj Tubes
  239. Depletion mode mosfets for 2mA CCS ?
  240. New tube stash question
  241. Stepped attenuator recommendation...
  242. Pros and cons of Cascoded front ends
  243. EF86 as a volume pot, line pre 2008
  244. RCA voltage regulator
  245. Input voltage attenuation
  246. Valve Buffer amp
  247. 6y6ga
  248. Filmosound L-1 6V6 Volume pot issue
  249. 3C24 in a SE output stage - output transformer impedance recommendation !!!
  250. Another 3f4 spice triode model: 5718 submini triode

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