PDA

View Full Version : Tubes / Valves


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 [75] 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104

  1. Tube rectifier help
  2. KT88 Lifetime estimation
  3. Adjustable distributed load discussion
  4. Thyratron voltage regulation
  5. switch-on, switch-off sequence for preamp/amp
  6. Found Meixing Amp schematic, sorta, would like some feedback
  7. Tube Voltage Regulator Flicker...
  8. Projects...How does one decide ?
  9. Best 6550's for the money....
  10. SMPS and tubes
  11. Looking for Eico 1030 manual/schematic
  12. 6AS7 OTL
  13. Gary Pimm's site down?
  14. 805 + 300b Amplifier Schematic
  15. Music Angel Amplifiers
  16. MM Phono stage (kit?) for tube newbie
  17. Russian tube dealer?
  18. STA1 + amp vs K-12M
  19. cheap ebay KT88 amp
  20. Tubes at low +B...
  21. Converting a yarland amp to drive headphones
  22. Starting a component system
  23. Tube newbie with Scott 299B
  24. 12AV7- 5965 Vs 12AY7
  25. PX25 tubes in a 300B Amp?
  26. help with a choke.
  27. 60Hz buzzing
  28. nuvistor bias with 18V ?
  29. ground bus for inputs on preamp - what's best?
  30. Voltage drop of various regulators in dc regulated power supply for preamp
  31. Does anyone recognise this tube amp?
  32. Entry level tube amp
  33. Anyone build/use 6BG6G?
  34. KT-77 Blues
  35. Dynaco Information MArk II Required
  36. tube test numbers - what do they mean?
  37. foolish notion, 12GN7 model?
  38. First-Timer Doubts: K-12 or Gainclone?
  39. Eico ST70 Rebuild / Upgrade
  40. More power in this
  41. Help modifiying schematic
  42. Simple Variable Tube Power Supply
  43. bias voltage vs bias current
  44. All the Bias options
  45. 6N6G looks like a great audio tube. . .
  46. Variable bias
  47. Tube amp on a budget
  48. tung sol
  49. How cool is tube deep cooling?
  50. 12B4 Equivalents?
  51. KT88 pp triode control grid resistor????
  52. Duncan Amps spice model docs...
  53. Hum in Legend amp
  54. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  55. Mullard high speed tester
  56. Joining two NCT transformers
  57. Stereo Driver PCB for PP Amp (EL34/KT88)?
  58. Tube Integrated Amp Kit Project
  59. 866A transient over-current capability?
  60. 6HS8 tubes for volume control
  61. cathode for plate ccs ?
  62. Broken Tube pin guides
  63. I need a 120v ct transformer... Where to look?
  64. Best production EL34?
  65. 6DJ8 or 12AT7
  66. 6L6 Single Ended Flea Amp?
  67. Se Tranny used on Parafeed!!!
  68. Hammond 270 series power transformer?
  69. 6aq5.......6v6.......
  70. 6N1 substitution with 6922
  71. driving 845 push-pull with a signal from a 300B SE stage
  72. Recommend a schematic for a Moving Coil head amp?
  73. Tube Buffer 6J1 / 5654 (6AK5)
  74. question about 6Av5ga tubes
  75. Toroidal SE transformers
  76. Triode Trick
  77. SE 300B or PP KT88 amps?
  78. perhaps an INSANE query...
  79. Possible to estimate transformer specs?
  80. 9 pin replacement sockets
  81. Bench PSU
  82. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  83. Joke of the day
  84. $300 tube amp budget. Which Amp??
  85. Simple Linestage for 27 or 1H5?
  86. Foreplay III pre amp
  87. Fixing this 100TH
  88. I have some 5654
  89. Amplifer calculation
  90. Auto Bias?
  91. Se KT88 with Quad ESL
  92. Parts from Salvage
  93. power supply question.... too many Volts?
  94. Now wouldn’t this make an awesome monoblock.
  95. Please,help me for schematics!!
  96. Kofi Annan in: "Open for Suggestion"
  97. What connector for 300vDC DOMESTIC environment?
  98. looking for help in transformers.
  99. problems with 805 tubes
  100. Audio Research D-90
  101. Replacing a 12AU7 in a cathode-follower.
  102. Original Dynaco 70 circuit mods/upgrades?
  103. is there a power supply unit for prototyping?
  104. Power Supply Design and Blocking
  105. OTL questions
  106. PP- which input/splitter topology??
  107. Cathode feedback and DHTs
  108. How should Dick Olsher Blue Velvet measure??
  109. Info on Melos MA-111?
  110. Aikido with dual personality
  111. Making a hole for AC socket in a chassis
  112. Liteaudio LS31 preamp pcb
  113. Thoughts on Quad II output topology
  114. HF-85 Rebuild advice
  115. Cheap Williamson amp kit
  116. Mr. Liang audio amplifiers
  117. plate ccs
  118. DC Huuuummmmmm
  119. Hey Gingertube - trying to debug Baby Huey
  120. question about nOrh SE 9 amp for FE207E
  121. Arc D150
  122. help identify this "cleartop 6550"
  123. Cheap emergency gold sockets
  124. Is Western Electric for Real? KT88 Scam?
  125. Russian 635P?
  126. Swinging Choke or Smoothing Choke
  127. Amp de-bugging
  128. SMPS for B+ from PC PS
  129. Placement of tone stacks
  130. Rectify AC to DC for heating
  131. KT88 in class B
  132. 6FE5 Ultralinear?
  133. OPT -the good, the bad or the ugly ??
  134. Switching power supply for tube-pre
  135. Using a zener to drop plate+screen voltages
  136. Will this circuit work?
  137. Ei 6CW5, any users?
  138. Simple tube preamp?
  139. push-pull and primary impedance
  140. DIY : SWR Interstellar OverDrive (bass preamp)
  141. sound valves m-40 schematics
  142. series connection of filament in push pull output stage
  143. Has anybody built this amp?
  144. Red Light District Amp Screen Reg
  145. AEG rectifier
  146. Gm emulator for calibration
  147. Greetings and a couple of questions
  148. Tubes in a chip amp power stage??
  149. Yaqin MC-10L Preamp Tubes
  150. Sound of paralleld EL84
  151. Preamp Question
  152. WTH -- UL back to triode connection
  153. $139 tube amp but cant remember where i saw it...
  154. better 6au6 alternative
  155. type 40 triode curves
  156. Cap size for Hg Rectifiers
  157. Anybody have experience building an OTL amp?
  158. measuring hum
  159. Nytone SA2000
  160. Inter stage iron in High End
  161. very peculiar psu problem
  162. 12A6 Healthkit A7 Amp
  163. testing a 13E1
  164. JE Labs / Arnold Cruz 2A3 amp - Q
  165. 5842 grounded grid
  166. Russian RF Double Tetrodes
  167. Opinions or inputs on Altec 1570B amplifiers
  168. Chinese EL34 amp to modify
  169. GE 97F cap polarity ???
  170. 6C8G phase inverter
  171. Shall I disassemble this ampex for parts?
  172. Power Amp Build from Eico ST70 - Negative Feedback Question
  173. ECC83 cathode grounded = awesome overdrive (?!?!?)
  174. Looking for a Balanced Mic Preamp w 12AX7
  175. Does anyone has a T.A.C.-34 or a T.A.C.-88 schematic?
  176. Conrad Johnson PV10L Phono stage DIY
  177. NEW KT66's
  178. Edcor outputs?
  179. Schematic Comment on 'Principles of Power" book ??
  180. stereo push pull amp one heater supply for power tubes
  181. Building new GU-50 stereo amp...
  182. Tubes and microphonics
  183. 829 or GU-29 audio amplifier schematics?
  184. Consonance t99 schematic/ minimax pre
  185. Useful Supplier of Transformers, Chokes, Chassis and other stuff
  186. Serious case of brain fry. You out there Thorsten?
  187. Upgrading a Beard P100 tubeamp
  188. Tube Amplifier with OT100
  189. bogen m120 schematic
  190. Question about Thorsten's Tube Phono Pre
  191. PP Output Trafo Measurement
  192. push pull balancing
  193. New issue Mullard Tubes
  194. Help on triode
  195. 5 Volt Damper Diodes?
  196. Please help diagnose preamp problem
  197. 6N1/6N3 substitution
  198. Cathode feedback and input impedance
  199. Optimal ripple voltage on b+ supply
  200. Setup suggestion between DAC-AH and ST-70
  201. Simple Low Voltage Tube Preamp?
  202. Anyone built this 100W GEC amp? How is the sound?
  203. Does anyone have VT150 schematic?
  204. Ignition Coil Toobe Amplifier
  205. Voltage swing of Heffa?
  206. All pentode PP amp?
  207. GZ34 anode load resistor calculation - help?
  208. Capacitor choice for attached schematic
  209. The sound of... tubes !
  210. All quiet on the SN front - recommended choice of tubes
  211. Moscode 600 hum/turn off thump
  212. What's the simple killer tube amp? Anyone?
  213. Help - CFB in a KT88 SE amp
  214. Any Russian speakers here?
  215. 6av6 Diode use?
  216. Power Supply
  217. Choke rating for choke input duty
  218. drawing a loadline for a power stage EL34 tube.
  219. Experiencing problems to insert tubes
  220. Preamp signal wiring ideas ?
  221. el34PP circuit evaluation!!
  222. "Re-Forming" Caps on Old Tube Amp
  223. Gary Pimm website?
  224. Haltron (UK), Trigon (UK) and Ultron (germany) ECC83 tubes info request.
  225. Audio Research D150 bias setting
  226. Cathodyne phase splitter with CCS?
  227. Has anyone tried 2 x 6550 100W amp?
  228. modelling PSU for Aikido
  229. 27 head phone amp or.??
  230. New Chassis Fabrication Pics and Capacitor Question
  231. Replacing old caps in the SP8 pre-amp
  232. Tube choice for Class A2
  233. hybrid graetz in PSUDII
  234. 6C45P Spud
  235. Philips ECG 12AX7WA or GE 5751 ?? Opinions, please.
  236. Single Ended EL34 Amp
  237. Rp / Rk on Aikido preamp
  238. hum in amp!
  239. Looking for a 83 rectifier model
  240. Advice wanted on ebay SET amps
  241. Resistors for ultralinear-to-triode conversion
  242. Gary Pimm
  243. resistor values for lifting ground AND LED
  244. output transformer impedance choices
  245. Feedback disc recording amp
  246. 6bm8/ECL82 vs EL84
  247. B+ filter caps
  248. (Newbie) CSS Question
  249. 6P15P Tubes: Push Pull Possible?
  250. Tube X-ref list ??

Content Relevant URLs by vBSEO 3.3.2