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  1. Vacuum Tube factory: For Sale!
  2. Does anybody know anything about this German console
  3. Heater dillema for multi chassis phono stage.
  4. Q: lifespan of JJ ECC99 tubes
  5. Cold solder joint?
  6. Input Impedance/Buffers
  7. Old capacitors..Comments..
  8. Shizuki capacitors?
  9. Spectrum Analyzer: What to get ? What to look for in a spectrum analyzer ?
  10. Amperex Orange Globe 12ax7 ,Brimar cv4004
  11. Question about transformer lamination stacking techniques
  12. line preamplifier with 6c10
  13. Homebrew Toroidal Output Transformer
  14. Line output tube
  15. MJK's SSSchadeode
  16. Any one know were to buy the fu-80 tube?
  17. Maida Regulator PCB
  18. Suggestions for 7k output transformers.
  19. Help: Fluke 87V Meter Calibration
  20. Searching for Primaluna Prologue Three schematic
  21. JCM Build - Hum and Crackle
  22. Silvertone radio to Guitar Amp conversion question.
  23. Pentode Regulation Question
  24. pentodes with CCS load?
  25. Are these tube PCBs any good ?
  26. china 6L6 SEdiy
  27. What are your opinions of the ST-70 and St-120
  28. Baffle Step Compensation Tube Circuit
  29. 6L6 to 7027 cathode resistor value
  30. PCB to mount snapmout electrolytic capacitors
  31. Dared MC-7P Upgrades
  32. adapter to go from 6L6 to 807
  33. My Experience with a Jolida 202s (SoFar..)
  34. Cathodyne gain calculator link
  35. Dynakit ST-35?
  36. PSUD modeling old amp PS fails.
  37. Fisher 800 push-pull output stage not symmetrical. Why?
  38. Question of D3a driving 300B
  39. old console amp
  40. st35 vs millett DCPP vs tubelab simple SE
  41. New Tim Mellows OTL project
  42. Melted my mains transformer - Where to find replacement ?
  43. Strange.................
  44. Effect of high mains voltage?
  45. Kent SL 21 Tube head need help!!
  46. Hexfred or SIC rectifiers in choke supplies
  47. 'Strange' bass boost with impedance transformer
  48. Did my tubes go south ?
  49. Use of Tango NN-600-600 Transformers ?
  50. Anyone have an explanation for break(burn)in
  51. The Right Tube & TRannie
  52. 6SL7 / 6SN7 Phono
  53. Tube integrated amp in China.
  54. Power supply issues with Borbely style 12AU7/MOSFET hybrid
  55. heater elevation ground point
  56. Edison 12, can anyone help?
  57. Delay B+ using relay?
  58. New Schematic Linestage Tube Preamp using EF86 & 12AX7
  59. Phonostage (WAD clone) and 12B4A Preamp Build
  60. Interstage coupling feedback
  61. Just received a Yaqin MC-10T and have a couple of questions.
  62. Amplifier Troubleshooting
  63. Audio Preamplifier with PCC88
  64. Need Help With These TriodeDick Preamp Scematics
  65. I need help with my amp project
  66. Looking for unbalanced to balanced transformer
  67. Power Transformer Question
  68. My First Tube Amp Project S5 K-12G
  69. 6E2 vacuum tube compatibility
  70. Tube condenser microphone help!
  71. Audio transformer feedback loop
  72. yaqin vk amp without the loudness button uk version
  73. PP driver stage with local feedback
  74. Leader LAG-120B Audio Generator Manual Wanted
  75. Transformer brand question
  76. Single ended at 24Vcc 1+1W @ 8 ohm - three tubes
  77. EL41 PP power supply questions
  78. Reduce output on a ECC88CC class A pre-amp !
  79. SE OT impedance question
  80. DIY Tube amp book?
  81. 6P6P tubes?? will 6V6's work?
  82. RH84 amplifier build, but very weak distorted output
  83. Paralleling filament transformers
  84. 6ak5 triode mode disipation
  85. Equalize or Not Equilize when driving a tube amp ?
  86. How to retire from DIY and sell off all your workshop contents?
  87. New to tubes and diyaudio here, question about torrids and tube amps...
  88. PC Based Oscilliscope for Tube Curcuits
  89. Lamp in HV Centre Tap - why?
  90. EL156 PP
  91. 300B resistor
  92. Has anyone here bought from ussr-tubes.com ?
  93. Which cathode bypass capacitor?
  94. RIAA Schematic for-6SL7,7308 or?
  95. Chassis' for Tube Gear
  96. Convergent Audio Tech SL1 preamp
  97. Buy Them While You Can Not When You...
  98. Does anyone know of Thomas Martens?
  99. OTL for 40-80ohm speakers
  100. Morrison Dinosaur
  101. pcl86=14gw8 ??
  102. My little SE with GU50
  103. Source follower in a DC-coupled pp amp?
  104. Tube chassis for retail sale.
  105. Poor man's power supply
  106. High voltage driver for AB2 operation GU81m tubes
  107. 5AR4 rectified power supply question
  108. Direct Coupled Amp
  109. Is this EL84 kit from Germany worth fooling with?
  110. 6v6 PP Pentode mode
  111. 5 pin octal tube socket
  112. RCA Manual Typo?
  113. pete millet low mu preamp
  114. Capability to drive the 211 PP
  115. 6BG6G SE advice needed.
  116. Signal Generator: Which one to buy ? What to look for in a signal generator ?
  117. Power booster
  118. I've just build this steroe amplifier
  119. What amp to build? Push Pull, SE? thoughts?
  120. amp sounds bad- fatman itube 252
  121. 6C33 single ended class A2 (cathode network question)
  122. Sweet Peach EL34b Amp - Distortion?
  123. 6C33C socket types, where to buy?
  124. haedphone amp. using 6418< NEED HELP
  125. finished my 6au6/807 amplifier
  126. Thinking about building an S5 16LS 16W amp I've got some questions for the forum./
  127. Broskie "Unbalancer" - transformer specifications
  128. Tube chess.
  129. How Its Made - Vacuum Tubes
  130. Please help me understand power supply load
  131. 12AU7 - How absolute are maximum ratings?
  132. Tube rejuvination
  133. Article: Samsung brings back tubes in audio dock
  134. 1st build suggestions
  135. Parallel SE output
  136. Fixed Bias question
  137. vintage ua 610 schematic
  138. Which KT88 PP and which Transformers?
  139. Some more special small-signal tv tubes
  140. MR 67 Coupling Caps
  141. Help - YAQIN MS-20L schematic
  142. Power and Speaker cables
  143. v1 tube keeps going microphonic help! 5e3 build
  144. Leak TL12+ with triode mode EF86
  145. diy tube dampers
  146. VTVM troubleshooting help
  147. PP amp crossover distortion
  148. Sanity check please? ST-70(-ish) power supply
  149. Thoughts of apparent noise on ground - due to power tx?
  150. hybride circlotron
  151. Clone
  152. 8156 Beam Pentode Compactron
  153. DOUBLE TRIODE (6N16B)
  154. looking for Tube I/V analog for dac schematic ?
  155. NewBee PPEL84
  156. Whooaa! Now we're talking.
  157. Cinema Engineering AT-18
  158. Back from school
  159. Amp ideas for my spare 3.3k output transformers.
  160. HEllo and a few suggestions please
  161. 1SH24B Pre-Amp (or buffer?)
  162. Anode cap for GU 29 / QQE06/40
  163. Back to back autotransformers for B+?
  164. Sound Valves M60 schematics
  165. Volume Pot for RH84
  166. Mengyue mini el34b
  167. Which Chinese integrated tube amp have the power for Rock Song ?
  168. Help on transformers please
  169. 300B alternatives
  170. Anybody using a tube amp in their car?
  171. What is a KT88-98?
  172. 6au6 line stage a bad idea?
  173. Making a Kron tube
  174. AY Symphonies preamp
  175. Need to Upgrade Tube Preamp Volume Pot
  176. Tubelab Simple SE low B+
  177. Filament AC or DC?
  178. rasping sound from Dared VP-16
  179. Anyone have any "small signal" pentode models?
  180. Power amp distortion for modern amps
  181. Help with EL504-based amplifier
  182. Tubes: Are they worth it?
  183. Radio Shack Boston Monobloc (fuse question)
  184. 829B 3E29 Pentode PPP?
  185. Fixed Autobias?
  186. Best wishes
  187. Radiotron A504 amplifier schematic
  188. Blown power tube - a short story
  189. Hickok 752A calibration?
  190. replace EL34 with EL37 !?
  191. Mono push-pull driver PCB
  192. Magnavox 139AA schematics, info?
  193. Anyone knows what driver tube on DowdyLama's GM-70......
  194. Building an amp around the QB5/1750 transmitter tube
  195. Instrument amp from '59 Lowrey donor chassis.
  196. cascoded gyrator loaded 6H9C to low idle.
  197. vacuum tube DAC and connection
  198. Dynaco ST70 II Right Channel Out
  199. ST70 Inrush Issue
  200. ECC88 OTL heaphone amp
  201. Help with deciding to build or buy Tube amp.
  202. Luxman LV-105 static on on channel
  203. equivlent of FU-50
  204. placing the volume control
  205. PP 300B ''transformer coupled''
  206. My First Tube Preamp
  207. Tube amp kit and speaker recommendations?
  208. First design GU81M SE triode
  209. Instruments & Amps forum - where is it?
  210. Power supply capacitor question for tubelab simple ss
  211. EL300 = 6FN5 / PL300 = 35FN5 tube
  212. 6U8 driving 45
  213. very low impedance white follower with 6H13C
  214. EL86 Any idea helps.
  215. 6112 and 6111 Mini-preamp
  216. Expert advice on what preamp to chose
  217. Harman Kardon DPR-7, Commander series pre/mixer
  218. input transformer - mumetal casing etc.
  219. Oil-filled caps: ASC versus Panasonic
  220. SOHA headphone amp
  221. Using a single triode as a .......
  222. Sonic Frontiers SFP-1 Phono Stage
  223. Help!! with attenuation.
  224. power up inrush current limiter - anyone using?
  225. Audioromy FU-29, Latest Model 828A Mini Review
  226. Vertical-deflection
  227. Drilling a hole
  228. Edcor CXPP25-MS-8K V Triode Z-565
  229. bad opt measured values
  230. Mu Follower Driver for Push-Pull
  231. Hickok 539 question...
  232. need datasheets for a phillips transformer if anyone has any
  233. Chicago power XFMR question.
  234. Coupling Capacitor - Pls Help
  235. Help please on Christmas gift
  236. Audio Note P-zero
  237. SE EL34 Schematic - What do you think?
  238. Playing with hybrid amp: SRPP + MOSFET
  239. 300B filament supply question
  240. KT88 Parallel Push Pull
  241. cheating life out of old tubes?
  242. dBu transformer ratings
  243. Dared MP-2a3c mods
  244. Output transformers (Wolpert)
  245. Using Mains Transformers as Outputs
  246. Tube just for show...
  247. first project - first post - poddwatt
  248. High power CCS
  249. Analog Summing
  250. My new el34 + 12ax7 VCT amp. (Need Ideas For my first headphone vacuum tube amp Too~)

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