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  1. Should I try adding a small Tube Preamp to a DTA-100?
  2. IS 6N6P A DIRECT REPLACEMENT FOR ECC88CC ?
  3. Dynaco stereo 70 look alike
  4. Vacuum Tube factory: For Sale!
  5. Does anybody know anything about this German console
  6. Heater dillema for multi chassis phono stage.
  7. Q: lifespan of JJ ECC99 tubes
  8. Cold solder joint?
  9. Input Impedance/Buffers
  10. Old capacitors..Comments..
  11. Shizuki capacitors?
  12. Spectrum Analyzer: What to get ? What to look for in a spectrum analyzer ?
  13. Amperex Orange Globe 12ax7 ,Brimar cv4004
  14. Question about transformer lamination stacking techniques
  15. line preamplifier with 6c10
  16. Homebrew Toroidal Output Transformer
  17. Line output tube
  18. MJK's SSSchadeode
  19. Any one know were to buy the fu-80 tube?
  20. Maida Regulator PCB
  21. Suggestions for 7k output transformers.
  22. Help: Fluke 87V Meter Calibration
  23. Searching for Primaluna Prologue Three schematic
  24. Pentode Regulation Question
  25. pentodes with CCS load?
  26. Are these tube PCBs any good ?
  27. china 6L6 SEdiy
  28. What are your opinions of the ST-70 and St-120
  29. Baffle Step Compensation Tube Circuit
  30. 6L6 to 7027 cathode resistor value
  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. New Tim Mellows OTL project
  41. Melted my mains transformer - Where to find replacement ?
  42. Strange.................
  43. Effect of high mains voltage?
  44. Kent SL 21 Tube head need help!!
  45. Hexfred or SIC rectifiers in choke supplies
  46. 'Strange' bass boost with impedance transformer
  47. Did my tubes go south ?
  48. Use of Tango NN-600-600 Transformers ?
  49. Anyone have an explanation for break(burn)in
  50. The Right Tube & TRannie
  51. 6SL7 / 6SN7 Phono
  52. Tube integrated amp in China.
  53. Power supply issues with Borbely style 12AU7/MOSFET hybrid
  54. heater elevation ground point
  55. Edison 12, can anyone help?
  56. Delay B+ using relay?
  57. New Schematic Linestage Tube Preamp using EF86 & 12AX7
  58. Phonostage (WAD clone) and 12B4A Preamp Build
  59. Interstage coupling feedback
  60. Just received a Yaqin MC-10T and have a couple of questions.
  61. Amplifier Troubleshooting
  62. Audio Preamplifier with PCC88
  63. Need Help With These TriodeDick Preamp Scematics
  64. I need help with my amp project
  65. Looking for unbalanced to balanced transformer
  66. Power Transformer Question
  67. My First Tube Amp Project S5 K-12G
  68. 6E2 vacuum tube compatibility
  69. Tube condenser microphone help!
  70. Audio transformer feedback loop
  71. yaqin vk amp without the loudness button uk version
  72. PP driver stage with local feedback
  73. Transformer brand question
  74. Single ended at 24Vcc 1+1W @ 8 ohm - three tubes
  75. EL41 PP power supply questions
  76. Reduce output on a ECC88CC class A pre-amp !
  77. SE OT impedance question
  78. DIY Tube amp book?
  79. 6P6P tubes?? will 6V6's work?
  80. RH84 amplifier build, but very weak distorted output
  81. Paralleling filament transformers
  82. 6ak5 triode mode disipation
  83. Equalize or Not Equilize when driving a tube amp ?
  84. How to retire from DIY and sell off all your workshop contents?
  85. New to tubes and diyaudio here, question about torrids and tube amps...
  86. PC Based Oscilliscope for Tube Curcuits
  87. Lamp in HV Centre Tap - why?
  88. EL156 PP
  89. Has anyone here bought from ussr-tubes.com ?
  90. Which cathode bypass capacitor?
  91. RIAA Schematic for-6SL7,7308 or?
  92. Chassis' for Tube Gear
  93. Convergent Audio Tech SL1 preamp
  94. Buy Them While You Can Not When You...
  95. Does anyone know of Thomas Martens?
  96. OTL for 40-80ohm speakers
  97. Morrison Dinosaur
  98. pcl86=14gw8 ??
  99. My little SE with GU50
  100. Source follower in a DC-coupled pp amp?
  101. Tube chassis for retail sale.
  102. Poor man's power supply
  103. High voltage driver for AB2 operation GU81m tubes
  104. 5AR4 rectified power supply question
  105. Direct Coupled Amp
  106. Is this EL84 kit from Germany worth fooling with?
  107. 6v6 PP Pentode mode
  108. 5 pin octal tube socket
  109. RCA Manual Typo?
  110. pete millet low mu preamp
  111. Capability to drive the 211 PP
  112. 6BG6G SE advice needed.
  113. Signal Generator: Which one to buy ? What to look for in a signal generator ?
  114. Power booster
  115. I've just build this steroe amplifier
  116. What amp to build? Push Pull, SE? thoughts?
  117. amp sounds bad- fatman itube 252
  118. 6C33 single ended class A2 (cathode network question)
  119. Sweet Peach EL34b Amp - Distortion?
  120. 6C33C socket types, where to buy?
  121. haedphone amp. using 6418< NEED HELP
  122. finished my 6au6/807 amplifier
  123. Thinking about building an S5 16LS 16W amp I've got some questions for the forum./
  124. Broskie "Unbalancer" - transformer specifications
  125. Tube chess.
  126. How Its Made - Vacuum Tubes
  127. Please help me understand power supply load
  128. 12AU7 - How absolute are maximum ratings?
  129. Tube rejuvination
  130. Article: Samsung brings back tubes in audio dock
  131. 1st build suggestions
  132. Parallel SE output
  133. Fixed Bias question
  134. vintage ua 610 schematic
  135. Which KT88 PP and which Transformers?
  136. Some more special small-signal tv tubes
  137. Help - YAQIN MS-20L schematic
  138. Power and Speaker cables
  139. Leak TL12+ with triode mode EF86
  140. diy tube dampers
  141. VTVM troubleshooting help
  142. PP amp crossover distortion
  143. Sanity check please? ST-70(-ish) power supply
  144. Thoughts of apparent noise on ground - due to power tx?
  145. hybride circlotron
  146. Clone
  147. 8156 Beam Pentode Compactron
  148. DOUBLE TRIODE (6N16B)
  149. looking for Tube I/V analog for dac schematic ?
  150. NewBee PPEL84
  151. Whooaa! Now we're talking.
  152. Cinema Engineering AT-18
  153. Back from school
  154. Amp ideas for my spare 3.3k output transformers.
  155. HEllo and a few suggestions please
  156. 1SH24B Pre-Amp (or buffer?)
  157. Anode cap for GU 29 / QQE06/40
  158. Back to back autotransformers for B+?
  159. Sound Valves M60 schematics
  160. Volume Pot for RH84
  161. Mengyue mini el34b
  162. Which Chinese integrated tube amp have the power for Rock Song ?
  163. Help on transformers please
  164. 300B alternatives
  165. Anybody using a tube amp in their car?
  166. What is a KT88-98?
  167. 6au6 line stage a bad idea?
  168. Making a Kron tube
  169. AY Symphonies preamp
  170. Need to Upgrade Tube Preamp Volume Pot
  171. Filament AC or DC?
  172. rasping sound from Dared VP-16
  173. Anyone have any "small signal" pentode models?
  174. Power amp distortion for modern amps
  175. Help with EL504-based amplifier
  176. Tubes: Are they worth it?
  177. Radio Shack Boston Monobloc (fuse question)
  178. 829B 3E29 Pentode PPP?
  179. Fixed Autobias?
  180. Best wishes
  181. Radiotron A504 amplifier schematic
  182. Blown power tube - a short story
  183. replace EL34 with EL37 !?
  184. Mono push-pull driver PCB
  185. Magnavox 139AA schematics, info?
  186. Anyone knows what driver tube on DowdyLama's GM-70......
  187. Building an amp around the QB5/1750 transmitter tube
  188. Instrument amp from '59 Lowrey donor chassis.
  189. cascoded gyrator loaded 6H9C to low idle.
  190. vacuum tube DAC and connection
  191. Dynaco ST70 II Right Channel Out
  192. ST70 Inrush Issue
  193. ECC88 OTL heaphone amp
  194. Help with deciding to build or buy Tube amp.
  195. Luxman LV-105 static on on channel
  196. equivlent of FU-50
  197. placing the volume control
  198. PP 300B ''transformer coupled''
  199. My First Tube Preamp
  200. Tube amp kit and speaker recommendations?
  201. First design GU81M SE triode
  202. Instruments & Amps forum - where is it?
  203. EL300 = 6FN5 / PL300 = 35FN5 tube
  204. 6U8 driving 45
  205. very low impedance white follower with 6H13C
  206. EL86 Any idea helps.
  207. 6112 and 6111 Mini-preamp
  208. Expert advice on what preamp to chose
  209. Harman Kardon DPR-7, Commander series pre/mixer
  210. input transformer - mumetal casing etc.
  211. SOHA headphone amp
  212. Using a single triode as a .......
  213. Sonic Frontiers SFP-1 Phono Stage
  214. Help!! with attenuation.
  215. power up inrush current limiter - anyone using?
  216. Audioromy FU-29, Latest Model 828A Mini Review
  217. Vertical-deflection
  218. Drilling a hole
  219. Edcor CXPP25-MS-8K V Triode Z-565
  220. bad opt measured values
  221. Mu Follower Driver for Push-Pull
  222. need datasheets for a phillips transformer if anyone has any
  223. Chicago power XFMR question.
  224. Help please on Christmas gift
  225. Audio Note P-zero
  226. SE EL34 Schematic - What do you think?
  227. Playing with hybrid amp: SRPP + MOSFET
  228. 300B filament supply question
  229. KT88 Parallel Push Pull
  230. cheating life out of old tubes?
  231. dBu transformer ratings
  232. Dared MP-2a3c mods
  233. Output transformers (Wolpert)
  234. Using Mains Transformers as Outputs
  235. Tube just for show...
  236. first project - first post - poddwatt
  237. High power CCS
  238. Analog Summing
  239. My new el34 + 12ax7 VCT amp. (Need Ideas For my first headphone vacuum tube amp Too~)
  240. cascode tubes
  241. High Fidelity by Pilot (circa 1953)
  242. Hardware help please
  243. integrated amps 100 per channel
  244. KT88 mounting question
  245. Output Transformer question
  246. Angstrom Thermionic
  247. ECC88 tube buffer NEEDED !
  248. Paralell SE 807 Amp design
  249. Putting together a tweaker friendly amplifier!
  250. Tube chassis

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