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  1. Any good places to shop for diy in beijing?
  2. White CF with 6SN7
  3. Cheapo Guitar Amp
  4. Power Amp
  5. is there any sound in a 30A5 / HL94 ?
  6. the hybrid one
  7. 4-1000a se subwoofer amp
  8. ear 834p output resistance
  9. Output transformer push pull
  10. Cheap Lunch?
  11. Source for Alps RK18 pot's..?
  12. Triode strapped tetrode
  13. ok, help me out here......
  14. Homebrew Toroid O/P Tranny
  15. GIBSON GA-79RVT Stereo Cab plans or dims
  16. strange noises from ECL86 amp
  17. Retouching knicks and scratches on chassis
  18. MingDa MC-7R noise and gain
  19. start-up sequence of Aikido preamp / SS power amp
  20. Driving a 6B4G with a single 5687/7044/E182CC?
  21. phono stage with different replay equalization?
  22. Lprimary variation in pair old opts
  23. 8417 triode connected tube data
  24. 5763 = El84?
  25. 5687 to 6L6 SE ?
  26. TubeCad Feedforward Shunt Regulator
  27. "12EA6" Pentode !
  28. Marshall EL34-100/100
  29. short-circuit rectifier EZ80 !
  30. Good radio tube:6AQ5/6005
  31. Replaced pulled tubes with a resistor?
  32. Choke input PSU, drawbacks?
  33. Heater PS alternative / Redux
  34. Gold or silver dress-up rings for tube amps.
  35. 50C5 conversion
  36. Sa-5.1 blow fuse
  37. Hum problem of preamp
  38. Chassis ground blows fuse
  39. 7193 (2c22) preamp buzz/hum
  40. Se Opt
  41. Does anhone use those switching power supply for the heaters?
  42. Tube Minidoc, featuring New York Noise
  43. Help Choosing A Sowter Trans For My DAC?
  44. fisher 800c clipping at ultra low volume
  45. "audiodigit" tubalizer & tubepre original schematic
  46. Dht Guitar Amps
  47. rating of series caps
  48. F704
  49. tube socket PCB library or dimensions
  50. motorboating
  51. 6AN8 Triode connection + EL 84 PP
  52. Please help amend 6AS7PP circuit
  53. El84 Pp
  54. 6V6 Ultralinear
  55. Dear Moderators
  56. 845 se
  57. Bell 2122-B integrated amp - tube suggestions
  58. Wirewound pot for Rk
  59. KT88/90 F2011 Schematic
  60. United Electric 967
  61. Scott 222c mods...?
  62. Switching supply for 300B filaments
  63. ECF80/6BL8
  64. 24v tube buffer & line stage schematic
  65. Vintage gear hunting
  66. Seperate PSU Transformers? Filament Supplys?
  67. 828 is better
  68. Hum on a choke loaded stage
  69. SE Transformer question
  70. Design question - How to make amp porn visible?
  71. Leak Stereo 20 - Johan's Square Wave Theory
  72. K-12G First Time Build
  73. Vishay vt52-55 resistors in a tube amp
  74. EL84 Push-Pull ccs bias
  75. Eight 807's in Push Pull?
  76. Working with Current O/P DAC Chips
  77. Unison research Preludio schematic
  78. Rewinding Power transformer
  79. Information needed on RCA SPECIAL RED TUBES
  80. Score?
  81. Herron phono
  82. tube preamp + SS power amp.
  83. Puzzler
  84. HI-Fi 6p13p
  85. Resistor values
  86. To chassies SE amp,PSU question
  87. Grounding & board Layout questions
  88. Look for a beefy driver tube.
  89. ECC81
  90. 5687 v.s. 6922 preamp/xover
  91. amorphous iron core good or not
  92. Pre-Amp
  93. submini tube preamp is a success
  94. Roll off frequency.
  95. Materials Technology for Electron Tubes by Walter H. Kohl
  96. Grundig TK 46 manual
  97. I'm anti-expensive audio parts but man, a good capacitor can make a difference
  98. How to determine a tube is shorted?
  99. Power supply problem
  100. SS power trans for tube experiments
  101. how to set output current on G Pimm's CCS circuit?
  102. Tube testing questions
  103. Push Pull Output Transformer wiring problem
  104. shunt regulator using VR tubes (with ccs like g pimm) and circuit load
  105. Stepped attenuators vs. Carbon pots
  106. hum/buzz with pot all the way up
  107. Cap and resistor types in guitar tube amp
  108. VacuTrace ... In Chicago?
  109. Lifesaver question on earthing
  110. Affordable, but good attenuators?
  111. Gu50 Set ?
  112. mounting an EL34 upside-down
  113. Direct coupled PP 2a3 amp - maths needed!!
  114. My 1st scratch build complete......
  115. Very Basic EL84 or EL34 DIY Amp
  116. Curcio Daniel Preamp Mods?
  117. Tube designs: 45 driving 45/2a3/300b?
  118. Adding secondary of output transformer into cathodes of output stage ? Eico ST-70
  119. Marantz 8 B : Output Transformer
  120. has anyone used a fan on their project?
  121. Audio Research SP12 heater arrangement
  122. tv damper diodes
  123. volume pot quite close to a tube - is this okay?
  124. UTC s42 special series
  125. 6H30P preamp schematics
  126. Digital potentiometer corrupt tube amps
  127. Alternative filament supply for 01A line stage
  128. Lamination Size
  129. Yaqin MC10L and KT88
  130. Help me read tube data sheets
  131. Quick Question (Driving 6L6GC's)
  132. Cause for concern -- scorch mark in tube
  133. why not 10k pot
  134. Dynaco Stereo 70 Output Transformer
  135. 6CJ3 rectifier or 6D22S rectifier
  136. Back-to-Back trannies
  137. Spring Reverb transformer
  138. Hamfest in Toronto area next weekend
  139. st70 bass response
  140. Triode "Champ" transformer v Edcor
  141. Low vs High aka Series vs Parallel Filaments
  142. Bogen monster MO200A schematic
  143. The Great Tempe Audio Shootout
  144. opinions on this p-p kt88
  145. Any XLR Tube Buffer Plans?
  146. Mystery transformers
  147. I need help with my next project
  148. A thought on Cathode feedback
  149. EL34 SE, direct coupled
  150. Ccs
  151. Hybrid amp: ECH83 + TDA2030A
  152. Leaving tube preamp always powered on.
  153. Variable 6922 heater to cathode voltage limit...?
  154. Is this risky?
  155. What to do with some WE tubes and others
  156. 6B4G SRPP
  157. pentode in triode mode SE vs a DHT SE like 2a3/300b
  158. dynakit decware bottlehead ... which to pick
  159. 6JC6 triode strapped?
  160. Searching for Raw Turrets
  161. Help.. EZ81 power supply diagram
  162. Ear 8l6
  163. Bogen H-30 guitar mod
  164. Voltage measurements from a blown 5AR4 vs. good 5Y3
  165. Sanity check on a 2A3 ultrapath with Pentode driver
  166. Star ground with dissimilar metals: concern?
  167. 5AR4 marked as 5V4GA?
  168. Calculating cathode bypass cap.
  169. Please need help! TUBE BIAS PROBE
  170. Aikido Phono Stage
  171. Using an El84 as a driver
  172. Transfromer value of this 300B circuit
  173. Chassis Layout & PS questions
  174. help needed for 1st DIY tube amp - Sakuma 845 SE
  175. Ideas for 4v filament triodes/pentodes
  176. Comments on Power Amp Viability
  177. Balanced active crossover advice
  178. The Tube Center
  179. Help1 with a 3 channel 2a3 amplifier
  180. volume control hum/noise
  181. PS choke magnetic induction
  182. Circlotron power supply question
  183. Autoformer as choke?
  184. E182CC
  185. Fender Hotrod Deville 212
  186. Grundig Fine Arts OTL Amplifier
  187. Damper diodes, 6ax4 and or 6w4?
  188. Knight 333 / Pioneer SX 34B info needed.
  189. Gargantuan Linestage Output Capacitors
  190. Quad II Restoration
  191. Help identifying a tube.
  192. Tube filaments in series?
  193. Design of Resonant Input Choke PSU
  194. Dissimilar triode
  195. How important is the quality of a triode used as a cathode follower
  196. EL34B tubes
  197. Why not so common to split dual triodes between channels?
  198. In search of power supply schematic for phono preamp
  199. General Electric vs Toshiba 6L6's
  200. Audio Research Dual 75 Capacitor Source?
  201. Choosing A Cathode bypass capacitor
  202. 12AU7 SRPP buffer suggestions
  203. Pentode/triode switch question
  204. Lundahll 1669A Secondary voltage???
  205. Substituting tube rectifiers by silicon
  206. newbie question: is the connection to the output xformer somewhat odd?
  207. All quiet on the SN front - about darned time!
  208. Estimating power output
  209. Looking for KT88 Amplifier Schematic by Mikael Abdellah
  210. Comments on passive pre and cables
  211. curvecaptor
  212. 6b4g pushpull build!newbie
  213. Need help; I have "dog leg" shaped waveform on my amp
  214. Output Transformer Question?
  215. Urgent OT HELP needed ASAP please
  216. Questions on Triode Strapping
  217. Morgan Jones BALANCED?
  218. What are your RFI precautions?
  219. Pentodes without cathodes?
  220. help me
  221. Good quality 6600 CT OT
  222. Local Hamfest score!!!
  223. Unknown Transformer
  224. S5 11g help
  225. 6SN7 pre-amp
  226. These tube can be use for amplifier
  227. Any pitfalls to choke derived CT?
  228. Audio Research D76A bias adjustment
  229. I meet Mr. Morgan Jones
  230. st70 electrolytic caps
  231. Thank you SY
  232. el84 1 channel stopped working help
  233. Help! Weak Bass!
  234. never say never - 300B amps...
  235. 6aq5 Screen resistor?
  236. L. Tatro farm radios from 1930's.
  237. Published/DIY ultra-low THD designs?
  238. EL84 SE auto bias
  239. Kofi Annan in: "Oscillatin' in the Bevois Valley'"
  240. Subwoofer connections
  241. 6/30L2 - What to do with them ?
  242. PIONEER SA-810 Tube Amp Schematics
  243. EF86 Gm
  244. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  245. Aria 6P14 makeover.
  246. switch for paralelled tube
  247. Curvecaptor with pentodes??
  248. Ground point for HF decoupling cap?
  249. Cancelling Harmonics
  250. Quiet Tube

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