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  1. New matched tubes - where to use them
  2. Glow Tube (0B2) Help
  3. Bose 901 + Tube amps
  4. Tube tape NR
  5. Ming Da MC-34B fuse value?
  6. Potentiometer with bass boost pin for Simple SE?
  7. Volume pot for TubelabSE 300B recommendation ?
  8. (help) Make a 13.8V 50 Amp continueous current
  9. Toy amp.
  10. Looking to build a 25-30 WPC Push Pull amp - Need Help
  11. Quicksilver 8417 question
  12. GSM interference
  13. <WTA>Tube biased by LED
  14. source for knobs
  15. Lundahl 4-30 Build
  16. Anyone Have Info On Triode Board For MK IV?
  17. I would like to DIY Marantz model9
  18. 813se DIY OPT problems
  19. Got a big output trafo I want to use.
  20. building S5 k-amp
  21. EL84 max power for HiFi Amp
  22. Question about cathode bypass capacitor:
  23. Curcio Daniel II builders?
  24. 13E1 SE design
  25. Booster Amp for low powered SET
  26. Soft starting the rectifier
  27. Tube preamp components help
  28. My own version of the EAR 834P Clone
  29. Eico HF86 modifications
  30. Heaters and centre tap
  31. DHT's, fixed bias, sharred filament supply
  32. Do New JJ GZ34's have less B+ Drop?
  33. Grounded, Floating, or Thermistor-To-Case for Center Tap
  34. Hi, looking for some info on tube amplifier design basics
  35. Nifty little (cheap ) transformer for bias supply
  36. Problems with my ARC VT 130SE
  37. Telefunken V69B - Tube Amp
  38. HV Regulator
  39. EL95 mini SE
  40. NOS vs. Chinese Plate Caps
  41. TL783 regulated B+ 250V PSU schematic
  42. 6922 tube buffer
  43. 300B grid resistance
  44. 6AU6 Aikido in Triode mode?
  45. brown crud?
  46. Steve Bench's tube crossover
  47. Wierd striation on 6L6GC plate
  48. LT1085-based regulated 6.3v heater supply
  49. Are these tubes cooked?
  50. New Build Power Up Advice
  51. Choosing the right mullard design to match the Foreplay III and Ariels
  52. Dumb question on Coupling cap ratings...
  53. European Triode Festival 2008 - couple of seats left
  54. Building PRETOR toroid preamp
  55. ACT2 - ConradJohnson by 818design
  56. PS questions?
  57. Frank's Tube Database Down?
  58. Anybody try Euro DHTs like RE134, RE304 etc??
  59. Need help...again :)
  60. idea for a simple bias servo for AB PP
  61. GU-32/GI-30 tube PP amp
  62. Switch-mode PSU for tube heaters?
  63. Hammond Primary Lead color is wrong?
  64. A newbie need helps on the very 1st tube PreAmp
  65. why does 12u7 need certain amount of gain to stop hum 120???
  66. EL34 Pushpull imbalance
  67. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  68. Rozenblit Grounded Grid Cascode Pho Preamp Project
  69. Driving the kt88/6550 in set mode
  70. 6550a question for engineer?
  71. Yl1260
  72. Parts layout diagram for SE amp
  73. Da 42 Triode
  74. Bogen CHB100 Power Supply Question
  75. Testing of russian tubes on B&K 747B
  76. VR150 use
  77. First Valve DIY Project
  78. I'm having grid1 current in EL34
  79. anyone ever built a tube mixer similar to the RCA Living Stereo type??
  80. SEPTOR AT-amp (Anti-Triode) being built
  81. Sophia Electric el34 mods/upgrades
  82. Looking to build....
  83. Bias resistor for source follower driver
  84. PL 519 electrical characteristics
  85. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  86. My 6AS7G Fuse Link Checker
  87. Anyone ever had issues with One Electron?
  88. 35% off sale at RadioDaze
  89. phase splitter with Tr ?
  90. Chasing my Simple SE problem...
  91. Zenith stereo, EL84 SE. What to do...
  92. Free TVA-1 rev.3 schematic
  93. Bat Vk-60
  94. Trouble with amp 6V6
  95. 5-125 UL curves anyone?
  96. Mod it or scrap it?
  97. Bogen M330
  98. 1st Tube Amp - What to build?
  99. 6J5 weird phase inverter
  100. swinging CCS PP output stage
  101. Varying 2 tube amp characteristics: SE treble and richness
  102. Jadis Defy 7 Schematic
  103. microphonic sub-miniature tubes?
  104. Transformer distortion (THD)
  105. Options for replacing EF86? E180F?
  106. changing an integrated tube amp to a power amp
  107. Nice tube test supply
  108. Looking for 300B 2.5V heater vendor
  109. Cap to bypass bias battery
  110. 2A3 SE parafeed with PP-transformer
  111. Preamp Voltages
  112. TVA-1 "Export" circuit/schematic?
  113. 12ax7 series is this correct??
  114. Yet Another Phono Stage Suggestions Thread
  115. 15% off sale at Soniccraft
  116. Sizing Coupling Capacitors
  117. budget xformer for 829B pentode mode PP (class AB) ?
  118. preamp layout suggestions please
  119. Capacitors and hype!
  120. Transofrmer secondaries
  121. please help 407a
  122. OPT Grounding / Crosstalk
  123. SE With shared Rk in output
  124. Unsolved problem EL34/12AT7/5AR4
  125. Radford STA25 service UK
  126. My tube DIY Web page, translate into English
  127. suggestion about AIKIDO PRE
  128. jackson tube tester 648s manuals
  129. Hashimoto A-105 - 6S4A
  130. Looking For Counterpoint SA2000 Schematic
  131. Where do you put the standby switch
  132. Simple SE Schematic
  133. Operating point for 6GK5
  134. Audio Research St-70-c3
  135. Help identifying tube amp
  136. Ed8000
  137. power suply for Pre & Phono Use tube 6BM8
  138. ESLDD with "anti-triode"
  139. Schematics border patrol psu
  140. Tubelab PCBs for an 845 - a good idea?
  141. Bias supply idea
  142. dynaco st 70 c3
  143. KT88 and the 6550
  144. GM70/GM70 parafeed SET?
  145. Genalex repro KT88s
  146. Grid - Screen Alignment (X-Rays)
  147. tube matching
  148. DC heaters for 5687 in Aikido?
  149. Connection Jensen 4-pole
  150. Measuring Output Power
  151. Modelling stereo PSU in PSUD ...
  152. Speaker matching transformer.
  153. Sowter's Radford transformer
  154. Cathode bias 6LU8 UL/Triode
  155. Cathode bias 6LU8 UL/Triode
  156. Looking for a linear triode for lowish B+ CF (6N6P?)
  157. need spice model 5814a
  158. 420T or 10E/33B ?????????
  159. Decca DMI-73 and EL-84 weirdness
  160. Pentode guys: important to decouple g2 supply between stages?
  161. Ccs
  162. The Friday Chuckle
  163. Need help deciding what to build
  164. Why does red plate spell early death?
  165. Odd transformer with 6X4 tube mounted on top.. smoking more than my uncle Frank
  166. fisher 400 tweaking issues
  167. GM70 an 813 strapped in SE-UL - circuits?
  168. need help on transformer secondaries connection
  169. Partridge audio output transformer value
  170. Low mu Preamp Triodes as Power Output Tubes
  171. 300B Transformer temperature
  172. Standby Switch Problems
  173. Worth repairing?
  174. Measuring current distortion
  175. GM70 sockets?
  176. high AC mains problem
  177. 250 V PSU help
  178. EL34 UL Curves
  179. datasheet for ge 5star and rca command 5814a?
  180. PS choke voltage/current quetsion
  181. push pull power amp design question (a lot of actually :) )
  182. Knight Amplifier Repair Question
  183. Grant G100AS circuit diagram?
  184. Hashimoto A-105 - summary so far
  185. Related Audio Worlds largest
  186. Why do valves go microphonic?
  187. Allen Wright Superreg manual
  188. Need help on resistor values for 5687 aikido kit
  189. Pioneer SM83 PP amps
  190. Techtube valves/tubes
  191. Datasheet for Russian 6p3s-e
  192. Continually Blowing Fuses
  193. I am done with AES -- a short rant.
  194. CineMag CMMI-15/15B
  195. In market for a Capacitor meter - for a tube project!
  196. What amp(s) would you buy under $1500
  197. Etf 2008
  198. All FET Aikido
  199. what 12au7 have different tone ??vintage and modern
  200. Can 3.5W 2A3 amp drive proAc 1SC?
  201. British seven pin sockets
  202. Pentodes, triode mode and grid screen dissipation 101
  203. Yakov Aronov amps
  204. Suitable tube pre-amp for Phase Linear 400?
  205. Goldpoint value?
  206. TubelabSE 300B power transformer ?
  207. 316A socket
  208. Hashimoto A105 - some results (ECC99)
  209. Some uses for old transformers
  210. Power Supply Question
  211. PY82 as rectifier
  212. Jackson 637 Tube tester Info needed
  213. pro-ject tube box
  214. Some dumb Questions on Heater CCS supply
  215. Aikido loses power?
  216. Quicksilver 8417/12FQ7 mods
  217. Calculations for an AIKIDO
  218. Music Angel Empty shells
  219. Need help troubleshooting preamp trouble
  220. Compactrons on the brain!
  221. XSE vs. GSXE Edcors
  222. output transformer
  223. How to simulate OPT in LTspice?
  224. 311-b
  225. PSU Design help !!!
  226. BDT Preamp build
  227. Russian tubes / capacitors purchasing
  228. Bored with Leak ST20 - ideas?
  229. KT-88 Music Angel problems with sound level
  230. Fusion Hybrid 300B
  231. I'm new here..... :(
  232. DIY/Buy/Kit
  233. Ralph from Atma-sphere will be giving a talk 09/16
  234. Modified USB DAC board, DDDAC with triode buffer
  235. LS50/GU50 Both Grid Drive
  236. Aikido filament question
  237. 6l6 Se.
  238. Feedback requested on 7591 PP design
  239. Blackburn Mullard/Philips video
  240. DIY sheilded B+ cable
  241. Experimenters Tube Sockets
  242. Used freebies precipitate questions
  243. Mains toroid as IT with DC balance?
  244. Tubes for Viva Solista 845 SET amp
  245. SE transformer for PP duty?
  246. Warning: new SS relay question / No flame I
  247. Tube Haunts Thread?
  248. Problem with Maida regulator
  249. 2 stage SE IT coupled amps..
  250. BUF420M Current Sink

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