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. Single Transformer, two valve rectifiers
  2. Capacitors for Radio Frequency Amlifier and Converter Oscillator Tubes
  3. Tube Screening Cans
  4. PSU grounding
  5. 6AX4GT TV damper
  6. plate on chinese 6L6 red on one side
  7. FM stereo decoder
  8. Under the Christmas Tree - Valve Amplifiers 4th Ed.
  9. Using those dern 1625 tubes: a simple SEP amplifier
  10. Pairs of resistors in opposite directions
  11. 45 spice model
  12. APEX 460 Tube mic modification
  13. EL84 and 6BQ5 are Same?
  14. Simple hybrid amplifier (35W/8Ohm)
  15. Yaqin mc 10l or qinpu 6000 mkii
  16. Reported attack site?
  17. LCR RIAA Phono with DHTs
  18. New Here -Would Like to Build
  19. 12E1 push pull poweramp
  20. marantz model 9
  21. I would appreciate some helpfull advice from Aikido builders
  22. Dynaco ST70 big Snorting noise.
  23. Good Soft Distortion
  24. magnavox 8301 revamp, need's a second look
  25. Circuit or schematic for current source of 7.5mA
  26. Sakuma's bleeder tubes and series connected transfomers
  27. Tube measurement
  28. adding tone control to SE 6v6 amp
  29. Easy Little 6L6 SE
  30. knight KA-55
  31. Hum in tube amp
  32. Lundahl LL1660 10 mA Alt V
  33. 12au7 valve preamp (again?)
  34. Simple DC heating question
  35. 6146B?
  36. Reduce gain on power amp?
  37. ES9023 DAC(subbu) + Tube Preamp with Remote and R2R volume control(Danzup)
  38. AC heaters question
  39. Anyone tried this Mcintosh c22 knock off.
  40. Help me to find pins for tube socket
  41. HT delay pcb...
  42. Power supply, heater questions...
  43. Heathkit AA-151, to separate pre-amp advise needed?
  44. grounding
  45. 2 Stage GM-70 amp in A2... possible?
  46. GlassWare Janus Shunt Rectifier Tube Swap
  47. Schematics
  48. SE 6B4G driver tube options?
  49. seeking datasheet of 6J2B-V in english
  50. Nailing Hum in my Phono Stage
  51. Shaving voltage off HV supply?
  52. LEAK T12 and POINT ONE - worth having ?
  53. Quicksilvers Mid Mono Schematic?
  54. Russian & East European Tube Factory Logos
  55. Lampizator Channel
  56. RIAA triode or pentode
  57. Cute Little Tube Oscilloscope, Thought I'd share.
  58. Is it really possible to deliver 2W into 40 ohms with an SET ?
  59. se
  60. Connecting Two Amps to Common Input
  61. Wiring Aikido using LSA/HPA switch
  62. Most exotic SET power amplifier
  63. Help with rogers cadet 3 integrated
  64. Opamps for servos in tube amps - Christmas gift from LT, 12-12-12!
  65. tube amp hum........normal or suggested fix?
  66. Building a beast: Stereo EL84 auto bias PP tube amp
  67. Becker Brescia auto radio
  68. Double feedback pentode Power Stage
  69. Anyone Using Guiguang 300b tubes?
  70. Where to get Audio Note Gaku-On service manual?
  71. Sanity Check - Input Transformer Overshoot
  72. TOA HA-355 vintage tube PA amp schematic
  73. EL34 PushPull UL Amp
  74. 6L6G emission too high
  75. Need help designing BIAS circuit for old Bell amp
  76. Heathkit A-5A 6L6 PP Integrated Amp
  77. Where to put the meter
  78. Radii GS-40pp
  79. Concept dilemma (pre/pwr/spud content)
  80. What to do with these Eimac tubes?
  81. Driving 211 with VT25 or EL34?
  82. DIY AMP start project - Help choosing one
  83. Pilot 248B Amp with weak channel
  84. 6H30 VA stage?
  85. What is the best way to connect DC filaments?
  86. suggestions for a parallel feed 45 amp?
  87. Counterpoint SA 5.1 repairs
  88. The Morgan Jones mini tube headphone Amplifier
  89. Borbely headphone amp
  90. Found An Amplifier In My Basement I'd Forgotten About & Learn It's Sought After
  91. Floating OPT oscilloscope measuraments
  92. I Wasn't Away That Long, What's WIth The Price Hikes On All My Old Toys?
  93. Channel voltage mismatch
  94. OS70/1750 datasheets
  95. Beautiful Chassis
  96. 6A4, 46 and 47...excellent sound tubes !!!!
  97. Is it Overkill to use Duelund Caps in Power Stage (Counterpoint SA-5.1)
  98. Quicksilver M135 Schematic?
  99. recognize this old amp?
  100. grey fogging inside 6sn7
  101. Point to point or pcb?
  102. Quad query
  103. Fixing a Velleman K4040 - Buzz HIss Crackle Blown Tubes
  104. Found Original Genalex 12AX7..Need Advice..
  105. OPT power rating and amplifier power
  106. 6BG6-GA
  107. EL84 driving EL84 SET with fixed bias
  108. P2P 6CG7 Input Buffer
  109. 865 in triode mode...anyone ever tried it?
  110. PP KT88 Amp Low frequency Ringing
  111. World audio designs kel34
  112. Glassware Audio Design
  113. 2A3 mounted horizontally
  114. from tube amp to fm reciever
  115. diy tube amp
  116. Cary 805ae xlr option
  117. ST-70 mono makeover
  118. breaking in audio capacitors
  119. Question about 6V6GT amp schematic
  120. Sherwood Schematic
  121. Ever hear of a D7L1 or D7L3 YR7 tube?
  122. Psvane Replica RCA 2A3 tube - WR2A3
  123. 845 Driver Circuit
  124. ADJUSTABLE BIAS MOD KIT
  125. Gold Lion B749 12au7 Thoughts?
  126. Siliconray SRK 09 tube amp kit help
  127. Quantum minstrel
  128. Does anyone know how John Lee Hooker recorded this? (1949)
  129. Please Identify these black capacitors.
  130. New Tubes too silent (6P15P)
  131. best sounding & value amp kits/designs?
  132. Custom Woodwork For Tube Amp
  133. Tube 2E22 in triode mode
  134. Has anyone built an OTL amp with switch mode power supplies.
  135. Altec 15067 transformers
  136. Some interesting findings with transformers
  137. Bogen KO-60 Output Iron
  138. What would you do with Scott 222D IRON?
  139. Aikido vs CCDA
  140. wiring color code
  141. Maverick Audio TubeMagic D1 DAC
  142. Is one gz34 enough
  143. Edcor OPT opinions
  144. mengyue mini/ming da el34b
  145. I need a tube buffer circuit using a 12au7
  146. Stereo Amplifier Wood Enclosure
  147. What is the theoretical advantage of direct heated triodes?
  148. 6AS6 is useful for audio ?
  149. GM-70 design approach
  150. Ultimate emotion core material ( types of silicon steel , Permalloy or Amorphous etc)
  151. Looking to build my first tube amplifier
  152. Tube/SS opamp
  153. Biasing 6CA7/EL34 in Luxman LX33
  154. John Broskie MIA again?
  155. combine filament winding for rectifier
  156. HYBRID TUBE CFP
  157. 9302 Maggie Rebuild
  158. Pyramid-IX monoblock, 200W from 4x GU-50
  159. Suggestions of phono stage to build
  160. Do power transformers affect sound quality?
  161. Help with a Velleman K4040 ...
  162. RCA PA Amplifer, Input Transformers
  163. Channel imbalance Xiang Sheng DAC-01
  164. ARC M100s
  165. pros & cons of current mirror to balance a push-pull ?
  166. Wright Audio WLA10 help needed
  167. The Best tube/valve sound!?
  168. Mcintosh MC1000 and Ming Da MC300-PRE
  169. Operating Modern 845s
  170. The Transcendent Sound Son of Beast OTL Master/Mod Thread.
  171. Neutralizing An Amplifier
  172. Stacked speakers driven by an SEP amp?
  173. Tube buffer suggestion for LM4702 amplifier?
  174. FWB Voltage Doubler with -Bias supply
  175. 500V SE pentode design
  176. single ended transformer driving 32ohm speaker
  177. 250K Attenuator
  178. Possible to drive PP EL34-triodes with a cathodyne phase-splitter?
  179. Daughters POD amp 13EM7 Pics
  180. Calculating Ripple Current with PSUD2
  181. Channel problem on 45 converted amp
  182. Want to make a tube preamp
  183. Marantz TC-5 choke value
  184. diference between schematics and pcb layout
  185. Would this work?
  186. Can old resistors go bad?
  187. Strange output tube behaviour
  188. Practical question: toroidal transformer / heater current / kt120
  189. Morgan Jones Power supply cap values
  190. Can use a ballast for a PSU??
  191. Looking for a OTL tube headphone amp design
  192. Relative Humidity Attenuating HF
  193. Parallel Output transformer question
  194. Need help to ID a tube...
  195. Modifications to Sennheiser VKS 203
  196. Onix SP3 integrated amp latest schematic
  197. Omit sp3 integrated amp latest schematic
  198. Help: Western Electric 102A Tube Datasheet and Test Settings
  199. Power and output transformer separated from amplifier
  200. discrete and simple VCCS
  201. heater wiring question
  202. What is the deal with Welborne Labs?
  203. Center Channel
  204. input stage problem help please!
  205. Tube Tips/Tricks for beginners
  206. Any skilled custom tube amplifier builders out there?
  207. Are these tubes really matched?
  208. Single Ended Amp
  209. Mighty Midget Problems
  210. Run the tube stuff in your car
  211. Jackson 648 test for 6973
  212. Space-charge tetrodes in Inverted Mode
  213. choosing input valve
  214. Rectifier characteristics
  215. Glass-ware?
  216. 5751 Mil spec tubes vrs 12AX7
  217. 47 pentode...fabulous sound !!!!
  218. Aikido preamp transformer question
  219. 40's tube receiver question
  220. W5m transformer
  221. Dual voltage PS filtering.
  222. OD3 150V tube regulator
  223. Fisher 500c
  224. Help with quad cap upgrade
  225. low voltage hybrid power amplifier
  226. Which IR LED?
  227. Tube Frequency Response
  228. Big B+ voltage drop using diode rectifier.
  229. Triode ST70 kit schematic?
  230. 6AU6 replacement
  231. IT in cathode for driver class A2 tube
  232. Bogen MX30 Output Transformers
  233. Worlds Most Expensive Tube Amp !!!
  234. Blown screen resistor
  235. To ground plane or not?
  236. 5Z4PA Alternative?
  237. Question about chassis ground
  238. 6337- wtf is it?
  239. need ideers for a 6 channel amp
  240. sv572 transformer headache
  241. 6C33C / 6EM7
  242. 6146 TUBES ?
  243. Impedance matching
  244. QRP03 - Tube Buffered Gainclone
  245. Amp Cage Fababricators?
  246. PP KT88, Need help!
  247. Question regarding rectifier tube replacement
  248. Harmon Kardon A500
  249. Double triode 6SN7
  250. Tank's DIY tube preamp

Content Relevant URLs by vBSEO 3.3.2