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

  1. Low Profile Power Transformer Help
  2. Lowering Gain on an Aikido Preamp
  3. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  4. Tube vs. SS CCS...
  5. Another "I need an amp recommendation" thread
  6. i am a new one here
  7. i am new ! can you help me
  8. Pentode CCS: Would somebody check my work?
  9. PSU for 12V DC heaters
  10. 50C5 Triode strapped?
  11. homemade faceplates
  12. Can I build this?
  13. Heptode audio preamp? ECH83
  14. E130L in Triode mode
  15. class AB2 who's using it for hifi?
  16. Obscure radio tube
  17. another mingda
  18. tube hum in Aikido
  19. equivalent input impedance
  20. 6DG6GT "Magic Amp"
  21. Solen Fast Cap vs ASC film/oils in PS
  22. Tektronix transformers
  23. *very* basic plate resistance Q
  24. Yaqin MC-5881A amplifier improvements
  25. Tube design software
  26. More wasted space
  27. Radio tube guitar preamp
  28. PC Mount Novar Socket Suppliers
  29. Planning my first project
  30. Power Transformer leakage
  31. current sensing in series with anode resistors
  32. Please recommend a 9-pin dual triode = 417A
  33. Dynaco Pas 2
  34. Anyone have accurate charts for a KT90?
  35. Calling all Phono Preamp gurus, I'm looking for some plans
  36. Measuring Unknown Transformers
  37. Swinging choke vs std. choke in PS
  38. scope tests on a Heathkit A7E
  39. tube hum in a 6SN7 Aikido - is this weird?
  40. ECC807 preamp
  41. Ode to the 8416
  42. CCS 10M45 in Cathode of CF Driver
  43. Audionics help
  44. what 8-pin tubes would you suggest for an aikido preamp?
  45. KT88 tubes
  46. Any one tried these transformers?
  47. Williamson 6L6 Monoblocks (Finally)
  48. Master Volume preamp.. simple?
  49. ~2 watt SET decision
  50. retube order
  51. MC Riaa preamp help/opinions please
  52. WTB Fairchild 260 transformers
  53. Peter Millet amp
  54. 1946 Gibson BR-4 Amplifier tube question
  55. Power Regulator PCB's and Aikido parts
  56. A heater wiring DOH! moment??
  57. hum in fisher 800c phono section
  58. Aikido warm-up hum, resistor types, etc.
  59. Any of these tubes good for amps?
  60. Mini 98 El84 PP amplifier
  61. 1X6S33S=6X6S19P which one gives less impedance?
  62. schematic for 12.6 VDC heaters
  63. PP transformer for SE?? Help!
  64. 7-pin miniature tubes for audio?
  65. Tube Preamp as a Guitar Effect
  66. 6L6GT vs. EL34/6CA7 and WHY?
  67. Tube rectifier help
  68. Fender push pull amp... using one tube only.. is it dangerous?
  69. KT88 Lifetime estimation
  70. Adjustable distributed load discussion
  71. Thyratron voltage regulation
  72. switch-on, switch-off sequence for preamp/amp
  73. Found Meixing Amp schematic, sorta, would like some feedback
  74. Tube Voltage Regulator Flicker...
  75. Projects...How does one decide ?
  76. Best 6550's for the money....
  77. SMPS and tubes
  78. Looking for Eico 1030 manual/schematic
  79. 6AS7 OTL
  80. Gary Pimm's site down?
  81. 805 + 300b Amplifier Schematic
  82. Music Angel Amplifiers
  83. MM Phono stage (kit?) for tube newbie
  84. Russian tube dealer?
  85. STA1 + amp vs K-12M
  86. cheap ebay KT88 amp
  87. Tubes at low +B...
  88. Converting a yarland amp to drive headphones
  89. Starting a component system
  90. Really elementary question about caps.
  91. Tube newbie with Scott 299B
  92. 12AV7- 5965 Vs 12AY7
  93. PX25 tubes in a 300B Amp?
  94. help with a choke.
  95. 60Hz buzzing
  96. nuvistor bias with 18V ?
  97. ground bus for inputs on preamp - what's best?
  98. Voltage drop of various regulators in dc regulated power supply for preamp
  99. Does anyone recognise this tube amp?
  100. Entry level tube amp
  101. Anyone build/use 6BG6G?
  102. KT-77 Blues
  103. Dynaco Information MArk II Required
  104. tube test numbers - what do they mean?
  105. foolish notion, 12GN7 model?
  106. First-Timer Doubts: K-12 or Gainclone?
  107. Eico ST70 Rebuild / Upgrade
  108. More power in this
  109. Help modifiying schematic
  110. Simple Variable Tube Power Supply
  111. bias voltage vs bias current
  112. All the Bias options
  113. 6N6G looks like a great audio tube. . .
  114. Variable bias
  115. Tube amp on a budget
  116. tung sol
  117. How cool is tube deep cooling?
  118. Modified Fender Deluxe - Constant Current Phase Splitter
  119. 12B4 Equivalents?
  120. KT88 pp triode control grid resistor????
  121. Duncan Amps spice model docs...
  122. Hum in Legend amp
  123. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  124. Mullard high speed tester
  125. Joining two NCT transformers
  126. Stereo Driver PCB for PP Amp (EL34/KT88)?
  127. Tube Integrated Amp Kit Project
  128. 866A transient over-current capability?
  129. 6HS8 tubes for volume control
  130. cathode for plate ccs ?
  131. Broken Tube pin guides
  132. I need a 120v ct transformer... Where to look?
  133. Best production EL34?
  134. 6DJ8 or 12AT7
  135. 6L6 Single Ended Flea Amp?
  136. Se Tranny used on Parafeed!!!
  137. Hammond 270 series power transformer?
  138. 6aq5.......6v6.......
  139. 6N1 substitution with 6922
  140. driving 845 push-pull with a signal from a 300B SE stage
  141. Recommend a schematic for a Moving Coil head amp?
  142. Tube Buffer 6J1 / 5654 (6AK5)
  143. question about 6Av5ga tubes
  144. Toroidal SE transformers
  145. Calling MR. Tubelab! 6W6GT?
  146. Triode Trick
  147. SE 300B or PP KT88 amps?
  148. perhaps an INSANE query...
  149. Possible to estimate transformer specs?
  150. 9 pin replacement sockets
  151. Bench PSU
  152. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  153. Joke of the day
  154. $300 tube amp budget. Which Amp??
  155. Simple Linestage for 27 or 1H5?
  156. Foreplay III pre amp
  157. Fixing this 100TH
  158. I have some 5654
  159. Multisegment capacitor replacement help.
  160. Amplifer calculation
  161. Auto Bias?
  162. Se KT88 with Quad ESL
  163. Parts from Salvage
  164. power supply question.... too many Volts?
  165. Heathkit A7E Conversion to Guitar
  166. Now wouldn’t this make an awesome monoblock.
  167. Please,help me for schematics!!
  168. Kofi Annan in: "Open for Suggestion"
  169. What connector for 300vDC DOMESTIC environment?
  170. looking for help in transformers.
  171. problems with 805 tubes
  172. Audio Research D-90
  173. Replacing a 12AU7 in a cathode-follower.
  174. Original Dynaco 70 circuit mods/upgrades?
  175. is there a power supply unit for prototyping?
  176. Power Supply Design and Blocking
  177. OTL questions
  178. PP- which input/splitter topology??
  179. Cathode feedback and DHTs
  180. How should Dick Olsher Blue Velvet measure??
  181. Info on Melos MA-111?
  182. Aikido with dual personality
  183. Making a hole for AC socket in a chassis
  184. Liteaudio LS31 preamp pcb
  185. Thoughts on Quad II output topology
  186. HF-85 Rebuild advice
  187. Cheap Williamson amp kit
  188. Mr'Liang audio amplifiers
  189. plate ccs
  190. DC Huuuummmmmm
  191. Hey Gingertube - trying to debug Baby Huey
  192. question about nOrh SE 9 amp for FE207E
  193. 6N1P or EF86 for bass guitar preamp?
  194. Arc D150
  195. help identify this "cleartop 6550"
  196. Cheap emergency gold sockets
  197. Is Western Electric for Real? KT88 Scam?
  198. Russian 635P?
  199. Swinging Choke or Smoothing Choke
  200. Amp de-bugging
  201. SMPS for B+ from PC PS
  202. Placement of tone stacks
  203. Rectify AC to DC for heating
  204. KT88 in class B
  205. 6FE5 Ultralinear?
  206. OPT -the good, the bad or the ugly ??
  207. Switching power supply for tube-pre
  208. Using a zener to drop plate+screen voltages
  209. Will this circuit work?
  210. Ei 6CW5, any users?
  211. Simple tube preamp?
  212. push-pull and primary impedance
  213. DIY : SWR Interstellar OverDrive (bass preamp)
  214. sound valves m-40 schematics
  215. series connection of filament in push pull output stage
  216. Has anybody built this amp?
  217. Red Light District Amp Screen Reg
  218. AEG rectifier
  219. Gm emulator for calibration
  220. Greetings and a couple of questions
  221. Tubes in a chip amp power stage??
  222. Yaqin MC-10L Preamp Tubes
  223. Sound of paralleld EL84
  224. Preamp Question
  225. WTH -- UL back to triode connection
  226. $139 tube amp but cant remember where i saw it...
  227. better 6au6 alternative
  228. type 40 triode curves
  229. Cap size for Hg Rectifiers
  230. Anybody have experience building an OTL amp?
  231. measuring hum
  232. Nytone SA2000
  233. Inter stage iron in High End
  234. very peculiar psu problem
  235. 12A6 Healthkit A7 Amp
  236. testing a 13E1
  237. JE Labs / Arnold Cruz 2A3 amp - Q
  238. 5842 grounded grid
  239. Russian RF Double Tetrodes
  240. Opinions or inputs on Altec 1570B amplifiers
  241. Chinese EL34 amp to modify
  242. GE 97F cap polarity ???
  243. 6C8G phase inverter
  244. Shall I disassemble this ampex for parts?
  245. Power Amp Build from Eico ST70 - Negative Feedback Question
  246. ECC83 cathode grounded = awesome overdrive (?!?!?)
  247. Looking for a Balanced Mic Preamp w 12AX7
  248. Does anyone has a T.A.C.-34 or a T.A.C.-88 schematic?
  249. Conrad Johnson PV10L Phono stage DIY
  250. NEW KT66's

Content Relevant URLs by vBSEO 3.3.2