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

  1. Question about popping Noise
  2. tube preamp...opinions
  3. Help! I need TRW(UTC) O35 DATA
  4. Is this a good tube DIY kit to get?
  5. Best AC Heater Practices
  6. new hybrid amp turn on circuit
  7. dc phono
  8. screen-plate resistor and grid leak resistor
  9. Kr842vhd
  10. DRD 300b amplifier sound quality?
  11. Pre-amp selection
  12. tube buffer for TDA1543 based dac
  13. Does anybody know if a WE404 (5847) would be able...
  14. Transformer Question
  15. New preamp
  16. Fisher 800c neg bias problem
  17. Seek your comments on 71a tube amp
  18. Single-Ended 6V6 Questions
  19. El509 Plate current question
  20. Building a Pre-Amplifier
  21. cathode bias in OTL??
  22. 10y-IT-10Y SE amp
  23. Any schematics for balanced line driver using 6922?
  24. Would you buy EI EL509/EL519 in an Octal Package?
  25. A Noisey CAT SL1 Reference
  26. Plate color and getter
  27. Learning to interpret the performance curves for KT88
  28. 811A in P.S.E or P/P
  29. Quick help needed! LOTs of noise in BBMCCCS loaded /0A2 regulated preamp!
  30. power output calculations, rated power and required power output
  31. Please help with Stancor A-4416
  32. transformers, read me!!!!
  33. Source for archive cd of Sound Practices Magazine
  34. PSE with 6C41C
  35. cathode follower
  36. Orientation and Horizontal Mounting
  37. Newbie on cathode curves
  38. transformers, regulation, triode-connection...
  39. 1st tube project - newbie tranny question
  40. NOS supply
  41. AN7 prototype- variation?
  42. Help needed with 805 sets
  43. controlling heat in tube amps.
  44. Suround Tube Amp?
  45. PSUD Model Hack
  46. advice about project wanted (newbie)
  47. Newly CCS circuit from Pimm
  48. simple matching philosophy on tubes..
  49. A good source for PIO & HV Resistors??
  50. ARC SP8 schematic
  51. some questions...
  52. 6KD6 For OTL??
  53. Rogers Cadet III PU Adapter
  54. G2-driven 6BM8
  55. Appropiate cabling quality & Regulators
  56. Tubes.Ru
  57. Buy 6C33 in Canada, where?
  58. A simple OTL??
  59. Allan Kimmel OTL
  60. sansui au111 output transformer
  61. JJ capacitors
  62. How many rectifiers?
  63. Can I use LT1083 as a CCS load?
  64. What front end for PP - triode, pentode, mu-stage or differential triodes?
  65. Electro-Harmonix 6SN7EH
  66. hehe
  67. Any DHT PX25 DIY user here???
  68. 6216 beam pentode question
  69. comments on this design..
  70. Parallel single ended or push-pull?
  71. amp measurements
  72. Extremely low power first amp problem
  73. Are these Caps any good?
  74. ...in SE mode !
  75. Simple 6BM8 at Evolve Power Amps?
  76. Newbie needs help. Basic PSU design and choke question.
  77. Audio Innovations 800 (series 2)
  78. 12B4A PP schematic
  79. Breakdown between solder tags?
  80. Caps topology
  81. questions about tubeamp building
  82. Antonio Tucci
  83. Choke Load or WOT
  84. Amp identification wanted
  85. tubes or not..!
  86. Vitreous Enamel vs Wirewound Resistor
  87. Will Simple 5687 or Etude 12b4A drive headphones?
  88. For Info: We91 Fans
  89. Just finished my new 300B amp
  90. tape alignment hell
  91. caps for RIAA network
  92. tube based CCS
  93. Tube brands.. who is best/most popular..
  94. Vintage Oil Caps
  95. Please critique this 2A3 SE schematic!
  96. KT-88 Ella amplifier, how to lower noise?
  97. PSU2 and power transformer question.
  98. Possible to make a KT88 PP UL schemat OTL ?
  99. Using 12 EL519 for T8
  100. what film capacitors do you use?
  101. 6550, kt88's at 600+ Volts
  102. circuit diagram to build my DIY preamp
  103. The rule to calculate the load impedance of two or more valvces connected in parallel
  104. no capacitors!
  105. SJS SE 300B with Interstage Transformer Mk2
  106. Differential input stage for T8 OTL-OCL from newbie
  107. Scott LK72 output transformer quality ?
  108. Van Scoyoc SRPP Amp - GvT
  109. Newbie/Guitar Amp BOOK recommendation
  110. Hammond PT and KT88 Design costs.
  111. direct coupling
  112. NFB question
  113. ebooks/online literature...
  114. First time tube jitters...
  115. Audio Note Kageki vs. EAR 859 vs. Audio Innovations: The First
  116. Where is the best place to add tubes in this system?
  117. Anyone seen one?
  118. newbie and i mean new
  119. Differential amp, Long tail, Split load - what difference in sonics?
  120. IC geometry
  121. Fully silver hard wired
  122. Possible damage of a 5AS4 full-wave rect...
  123. direct coupling
  124. Good 6L6 schematic needed
  125. I could lose some heat - suggestions?
  126. Svetlana Svetlana EL509-II: Please disregard all my statements about this tube!
  127. help using Tube Tester
  128. @Tanberg owners. help needed..
  129. Electro Harmonix KT90 after 200hrs use
  130. Need suggestions on tube regulator.
  131. EAR 859 questions
  132. First build from scratch.
  133. Tanberg design..
  134. How to use Russian tube 6H6
  135. Are Svet EL509s really EL509s?
  136. Resistors and Capacitors
  137. simple design power amp.. wanted.
  138. SJS SE108Mk2 Amplifier layout.
  139. Free Auctions?
  140. measuring wattage?
  141. Seeking advise on my EL34 amplifier
  142. exchange
  143. CCS in tail of differential phase splitter
  144. Quicksilver 6550A's?
  145. Is this mod worth the effort?
  146. Current sourced heaters
  147. Manual for Tube Technology - Unisis Signature
  148. Valve amp with Dynaudio?
  149. Why can 8W sound as loud as 100W?
  150. Progress of my 813 SE
  151. NOS Tubes
  152. Would it be possible? OTL/OCL KT88?
  153. KT88EH matched quad auction, Fake?!
  154. Interstage attenuation transformer?
  155. HV ON noise
  156. Opinions on Walton Audio 300B Design
  157. Joplin Amp
  158. voltage regulators
  159. CCS for PP Class A output stage?
  160. distortion measurement
  161. Has anybody built the Matthew Reidsma Experimental 45?
  162. Citation II Assembly Manual
  163. what tube preamp DIY kit to match B&W P-5 speakers
  164. heavy duty valve amps.... for PA use....?
  165. Audio Innovation 800 mk2 ? advice?
  166. Tube amps.......AGAIN
  167. driver 6a3
  168. Morgan Jones H/P Amp problems PLEASE HELP
  169. Wad 6550
  170. Ferguson Type: OX170 & Ferguson OP6M Info Needed...
  171. Ebay Stuff - electrolytics for tubies
  172. Pioneer output transformers from the 60's
  173. The future of the Valve.
  174. Trying to understand negative feedback
  175. schematics
  176. Overvolting e-lyts
  177. Bottlehead Paramours done my way
  178. next project: rebuild using fisher 500c trannies
  179. Consonance ELLA
  180. Just a quick Q
  181. Has anyone tried a 6S4A as a 300B driver tube?
  182. Tube Preamp PSU Question
  183. 6N1P for buffer instead of 6DJ8, 6922
  184. quick question about a sovtek 6922
  185. 50.000 $ for a 30W amplifier .
  186. Opinion upon amp life expectancy at 5 hours/day? (theres a catch)
  187. Online Resoucre for Old Tubes?
  188. Comparisons
  189. Conrad Johnson PV10 mod
  190. ETM connected EL/PL509 in T8 OTL-OCL amplifier - how?
  191. good replacement for ECC82
  192. Velleman K4040
  193. $5 SE amp... but is it fried?!
  194. Build with 300B or something else???
  195. Another question
  196. Anybody know these two tubes? DET-9 & Ba
  197. Decent Valve Amp Kit?
  198. distorted hum
  199. Which KT88??
  200. Not connecting grids/anode can hurt tube?
  201. Question for SE Transformer Gurus
  202. Decoupling Paper In Oil capacitor question for KT88 design.
  203. Isabelle Phono Stage
  204. input/driver tube
  205. Best Sounding 6550
  206. toroidal trannies alignment
  207. OTL OCL or Non
  208. How can I use UTC A22 at OPT in pre-amp?
  209. SE Output Transformers
  210. Sq-5
  211. Specs And Curves
  212. Golden Dragon Tube
  213. 2A3 Output Transformer
  214. Powre Transformer for 2A3
  215. Newbie - Is this a good amp?
  216. Reference for DIY AudioCraft in Hong Kong
  217. tubes avalibility
  218. OTL Output Cap Question
  219. Newbie question : Plate CCS
  220. Black Art Single Ended Output Transformers
  221. quick transformer question
  222. CCS for p-p cathode bias ?
  223. Tube output stage for DAC
  224. Reinhöfer Transformers (Germany).
  225. power transformer help !!!
  226. UXCV11 Triode Tube
  227. HVHP shuntreg PCB's available?
  228. Harmon Kardon Ballad Stereo Amplifier
  229. 811A tube internal resistance ?
  230. 8417
  231. Running tubes at lower voltages
  232. EL34-PP building questions
  233. tube 8416 good for audio ???
  234. tube substitution and amp modification guidelines
  235. Real russian tubes anyone??
  236. I'm starting 300B amp
  237. Anyone tried this at home?
  238. push pull bias servo
  239. Sylvania JAN 6L6WGB max plate V?
  240. Repairing valve bases
  241. E55L in triode as driver!
  242. SE Class A with 845or 211. Need a good circuit
  243. st-70 questions... tips?
  244. Biasing a Class A amp information
  245. Holy Grail of Valve Amps
  246. Diff amp driver -> SE output
  247. hipass/lowpass filters
  248. Beginners question(help!)
  249. Capacitor Question /question on cap
  250. Report on 6922 testing

Content Relevant URLs by vBSEO 3.3.2