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  1. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  2. why do tubes have a treble lost ???
  3. Low Frequency Mains Noise
  4. Help modifying circuit
  5. Ever heard sth like this?
  6. dual volume control
  7. Need DIY help in Los Angeles area with tube preamp
  8. 6c19p se otl
  9. pt
  10. "Killer" Screen Driven Push-Pull Amp Initial Queries
  11. fixed vs. cathode bias
  12. RH84 Push pull?
  13. Cheapfield project
  14. heater connection problem
  15. What to do with this PP OPT?
  16. Question about Bridging
  17. White Fuzzy furry growth..........TV-2C/U
  18. Tweaks for 845 Power amp
  19. the aardvark grows a spud!
  20. WEST output transformers?
  21. Tube Buffer Success!
  22. Lafayette LA-234 Amplifier
  23. filter choke voltage rating
  24. Dealing with Mr. Miller (phono)
  25. Western Electric plant
  26. Pentod PP - too much NFB needed to sound nice?
  27. Lf351 replacement for Curcio Daniel I
  28. How bad is grounding one side of AC filament ?
  29. New matched tubes - where to use them
  30. Glow Tube (0B2) Help
  31. Bose 901 + Tube amps
  32. Tube tape NR
  33. Ming Da MC-34B fuse value?
  34. Potentiometer with bass boost pin for Simple SE?
  35. Volume pot for TubelabSE 300B recommendation ?
  36. (help) Make a 13.8V 50 Amp continueous current
  37. Toy amp.
  38. Looking to build a 25-30 WPC Push Pull amp - Need Help
  39. Quicksilver 8417 question
  40. GSM interference
  41. <WTA>Tube biased by LED
  42. source for knobs
  43. Lundahl 4-30 Build
  44. Anyone Have Info On Triode Board For MK IV?
  45. I would like to DIY Marantz model9
  46. 813se DIY OPT problems
  47. Got a big output trafo I want to use.
  48. building S5 k-amp
  49. EL84 max power for HiFi Amp
  50. Question about cathode bypass capacitor:
  51. Curcio Daniel II builders?
  52. 13E1 SE design
  53. Booster Amp for low powered SET
  54. Soft starting the rectifier
  55. Tube preamp components help
  56. My own version of the EAR 834P Clone
  57. Eico HF86 modifications
  58. Heaters and centre tap
  59. DHT's, fixed bias, sharred filament supply
  60. Do New JJ GZ34's have less B+ Drop?
  61. Grounded, Floating, or Thermistor-To-Case for Center Tap
  62. Hi, looking for some info on tube amplifier design basics
  63. Nifty little (cheap ) transformer for bias supply
  64. Problems with my ARC VT 130SE
  65. Telefunken V69B - Tube Amp
  66. HV Regulator
  67. EL95 mini SE
  68. NOS vs. Chinese Plate Caps
  69. TL783 regulated B+ 250V PSU schematic
  70. Tube buffer for electronic keyboards used in a band?
  71. 6922 tube buffer
  72. 300B grid resistance
  73. 6AU6 Aikido in Triode mode?
  74. brown crud?
  75. Steve Bench's tube crossover
  76. Bogen M120 bass guitar amp coversion
  77. Wierd striation on 6L6GC plate
  78. LT1085-based regulated 6.3v heater supply
  79. Are these tubes cooked?
  80. New Build Power Up Advice
  81. Mic pre idea
  82. Choosing the right mullard design to match the Foreplay III and Ariels
  83. Dumb question on Coupling cap ratings...
  84. European Triode Festival 2008 - couple of seats left
  85. Building PRETOR toroid preamp
  86. ACT2 - ConradJohnson by 818design
  87. PS questions?
  88. Frank's Tube Database Down?
  89. Anybody try Euro DHTs like RE134, RE304 etc??
  90. Need help...again :)
  91. idea for a simple bias servo for AB PP
  92. GU-32/GI-30 tube PP amp
  93. Switch-mode PSU for tube heaters?
  94. Hammond Primary Lead color is wrong?
  95. A newbie need helps on the very 1st tube PreAmp
  96. why does 12u7 need certain amount of gain to stop hum 120???
  97. EL34 Pushpull imbalance
  98. Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps
  99. Rozenblit Grounded Grid Cascode Pho Preamp Project
  100. Driving the kt88/6550 in set mode
  101. 6550a question for engineer?
  102. Yl1260
  103. Parts layout diagram for SE amp
  104. Da 42 Triode
  105. Bogen CHB100 Power Supply Question
  106. Testing of russian tubes on B&K 747B
  107. VR150 use
  108. First Valve DIY Project
  109. I'm having grid1 current in EL34
  110. anyone ever built a tube mixer similar to the RCA Living Stereo type??
  111. SEPTOR AT-amp (Anti-Triode) being built
  112. Sophia Electric el34 mods/upgrades
  113. Looking to build....
  114. Bias resistor for source follower driver
  115. PL 519 electrical characteristics
  116. Settings for testing 2C51/5670/396A on B&K Model 600 Dyna Quik
  117. My 6AS7G Fuse Link Checker
  118. Anyone ever had issues with One Electron?
  119. 35% off sale at RadioDaze
  120. phase splitter with Tr ?
  121. Chasing my Simple SE problem...
  122. Zenith stereo, EL84 SE. What to do...
  123. Free TVA-1 rev.3 schematic
  124. Bat Vk-60
  125. Trouble with amp 6V6
  126. 5-125 UL curves anyone?
  127. Mod it or scrap it?
  128. Bogen M330
  129. 1st Tube Amp - What to build?
  130. 6J5 weird phase inverter
  131. swinging CCS PP output stage
  132. Varying 2 tube amp characteristics: SE treble and richness
  133. Jadis Defy 7 Schematic
  134. microphonic sub-miniature tubes?
  135. Transformer distortion (THD)
  136. Options for replacing EF86? E180F?
  137. changing an integrated tube amp to a power amp
  138. Nice tube test supply
  139. Looking for 300B 2.5V heater vendor
  140. Cap to bypass bias battery
  141. 2A3 SE parafeed with PP-transformer
  142. Preamp Voltages
  143. TVA-1 "Export" circuit/schematic?
  144. 12ax7 series is this correct??
  145. Yet Another Phono Stage Suggestions Thread
  146. 15% off sale at Soniccraft
  147. Bias Mode Switching Question (guitar Amp)
  148. Sizing Coupling Capacitors
  149. budget xformer for 829B pentode mode PP (class AB) ?
  150. preamp layout suggestions please
  151. Capacitors and hype!
  152. Transofrmer secondaries
  153. please help 407a
  154. OPT Grounding / Crosstalk
  155. SE With shared Rk in output
  156. Unsolved problem EL34/12AT7/5AR4
  157. Radford STA25 service UK
  158. My tube DIY Web page, translate into English
  159. suggestion about AIKIDO PRE
  160. jackson tube tester 648s manuals
  161. Hashimoto A-105 - 6S4A
  162. Looking For Counterpoint SA2000 Schematic
  163. Where do you put the standby switch
  164. Simple SE Schematic
  165. Operating point for 6GK5
  166. Audio Research St-70-c3
  167. Help identifying tube amp
  168. Ed8000
  169. power suply for Pre & Phono Use tube 6BM8
  170. ESLDD with "anti-triode"
  171. Schematics border patrol psu
  172. Tubelab PCBs for an 845 - a good idea?
  173. Bias supply idea
  174. dynaco st 70 c3
  175. KT88 and the 6550
  176. crate vintage club problem
  177. GM70/GM70 parafeed SET?
  178. Genalex repro KT88s
  179. Grid - Screen Alignment (X-Rays)
  180. tube matching
  181. DC heaters for 5687 in Aikido?
  182. Connection Jensen 4-pole
  183. Measuring Output Power
  184. Modelling stereo PSU in PSUD ...
  185. Speaker matching transformer.
  186. Sowter's Radford transformer
  187. Cathode bias 6LU8 UL/Triode
  188. Cathode bias 6LU8 UL/Triode
  189. Sourcing ASC 100uf X386S capacitor
  190. Looking for a linear triode for lowish B+ CF (6N6P?)
  191. need spice model 5814a
  192. 420T or 10E/33B ?????????
  193. Decca DMI-73 and EL-84 weirdness
  194. DIY JTM 45/100 Style Guitar Amp
  195. Pentode guys: important to decouple g2 supply between stages?
  196. Ccs
  197. The Friday Chuckle
  198. Need help deciding what to build
  199. Why does red plate spell early death?
  200. Odd transformer with 6X4 tube mounted on top.. smoking more than my uncle Frank
  201. fisher 400 tweaking issues
  202. GM70 an 813 strapped in SE-UL - circuits?
  203. need help on transformer secondaries connection
  204. Partridge audio output transformer value
  205. Low mu Preamp Triodes as Power Output Tubes
  206. 300B Transformer temperature
  207. Standby Switch Problems
  208. Worth repairing?
  209. Measuring current distortion
  210. GM70 sockets?
  211. high AC mains problem
  212. 250 V PSU help
  213. EL34 UL Curves
  214. datasheet for ge 5star and rca command 5814a?
  215. PS choke voltage/current quetsion
  216. push pull power amp design question (a lot of actually :) )
  217. Knight Amplifier Repair Question
  218. Grant G100AS circuit diagram?
  219. Hashimoto A-105 - summary so far
  220. Related Audio Worlds largest
  221. Why do valves go microphonic?
  222. Allen Wright Superreg manual
  223. Need help on resistor values for 5687 aikido kit
  224. Pioneer SM83 PP amps
  225. Techtube valves/tubes
  226. Datasheet for Russian 6p3s-e
  227. Continually Blowing Fuses
  228. I am done with AES -- a short rant.
  229. CineMag CMMI-15/15B
  230. In market for a Capacitor meter - for a tube project!
  231. What amp(s) would you buy under $1500
  232. Etf 2008
  233. All FET Aikido
  234. what 12au7 have different tone ??vintage and modern
  235. Can 3.5W 2A3 amp drive proAc 1SC?
  236. British seven pin sockets
  237. Pentodes, triode mode and grid screen dissipation 101
  238. Yakov Aronov amps
  239. Suitable tube pre-amp for Phase Linear 400?
  240. Goldpoint value?
  241. TubelabSE 300B power transformer ?
  242. 316A socket
  243. Hashimoto A105 - some results (ECC99)
  244. Some uses for old transformers
  245. Power Supply Question
  246. PY82 as rectifier
  247. Jackson 637 Tube tester Info needed
  248. pro-ject tube box
  249. Some dumb Questions on Heater CCS supply
  250. Aikido loses power?

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