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. Noisy amp
  2. Book Recommendation for Newbies
  3. High power GU46 SE amplifier - help with certain issues
  4. Boyuu hifi Equis A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod
  5. Unknown SE output transformer wiring
  6. Class A output without all the heat cheat
  7. Grid leak bias - Easy to overload?
  8. How about LTP with degenerate resistor?
  9. 1200 vdc capacitor tube amp.
  10. Telefunken OPT
  11. Fixed bias question
  12. Question about loadline in Morgan Jones
  13. Please explain this power supply...
  14. 6SN7 - EL84 SE with interstage?
  15. 211 amp test. Square wave measures
  16. SAC thailand OPT for 211/845
  17. 6P21s
  18. 6L7M, Is there any use in audio?
  19. 958a Line Preamp
  20. Experience of the TentLabs Bias control modules?
  21. Simple Line Stage Topology
  22. compound/hybrid amp
  23. 6CJ3's in full wave rectifier
  24. CCS anode load overcomes 3/2 law non-linearity
  25. EL84 PP OT design for amp project
  26. $3k o/p XFR
  27. Jadis Factory Tour
  28. "budget" headphone amp
  29. Power Pulse Tetrode for Audio
  30. The SE UL 6P41S USSR
  31. buzz from dacmagic on kit st70
  32. WE 350B and WE311B available
  33. How determine p-g1 capacitance in trioded pentode
  34. Why Is My Single Chassis #26 PreAmp So Stable!
  35. Rare tube
  36. Alan's rantings
  37. Tube Amp problem ?
  38. Tube preamp SS PS slight thump like dead wax on an LP
  39. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  40. SET's first ripple in a big wave ? Here it is . . .
  41. 6P3S/6L6GB Amplifier from scrap parts :)
  42. Choke loaded 6ax4 bridge
  43. Transformer and choke orientation question
  44. Why some people want DC coupling in power amp?
  45. want to diy a tube preamp using only 12 volts help
  46. Russian 6p3s??
  47. Single-ended 8w amp
  48. Hovland HP 100
  49. Simple Line Stage Expanded
  50. Bridge Rectifier with Fullwave Tube
  51. Can anyone help diagnose this SOHA II amp channel?
  52. Schade and the 6C33C
  53. AMC 3030 annoying ripple noise
  54. Question and comments on SE vs PP by Eddie Vaughn
  55. 6080 PSE output Tx?
  56. Difference Between Self-Inverting Push Pull and Anti-Triode?
  57. Is this capacitor required?
  58. Why nowadays tube amplifier should play better than 1960's amplifiers?
  59. Aikido 12vac
  60. iPod to Adcom tube buffer
  61. Referencing a direct coupled output stage
  62. Long lead length to tube socket
  63. 6FH8 a strange tube for audio?
  64. Troubleshooting a µ-follower
  65. unison research unico thump on power on?
  66. CCS Not Working
  67. Allied 333 Hum
  68. EL34 Grid 3 connection
  69. The differential amplifier
  70. low power otl amplifier
  71. Using two stage opamp as first gain stage of power amp.
  72. Standing opts and lying pts?
  73. Tube substitition wanted
  74. Fatman Wi-Tube Hybrid Valve Amplifier with FatDock - No Output
  75. Operating point for 6SN7
  76. Which is the ultimate, perfect negative feedback amount you recommend in UL SE?
  77. Where to buy McIntosh Tube Amplifier Parts?
  78. comments/corrections on 6bg6 pp triode amp
  79. Question about LTP in Morgan Jones' book
  80. Matching 16 ohm loudspeaker into 8 ohm output transformer: can i do any modification?
  81. EL34 SE ultralinear configuration working as a triode: pro and cons
  82. First Build Help Needed - Transformer
  83. dynaco st70 headphone amp
  84. Velleman 4040 rebuild
  85. help needed for heater wiring of a 300B
  86. Best UX4 sockets?
  87. Filson 216 phono rework, advice please
  88. IRFS820B
  89. Help converting integrated amp to preamp
  90. 6N16B triodes: asking advice
  91. D3a IV
  92. stability of bias of KT88 in Xindak V30
  93. half 6SN7 / 6CG7 7pin mini substitute?
  94. Simple Line Stage
  95. 6L6GC redplating - what say you please?
  96. Yaqin MC-10L no bass response
  97. My first phono pre
  98. Fet rectifier?
  99. Two-cases amplifier, question about power switch
  100. VTL bias problems compact 100
  101. Assembly Manual heathkit a7-b
  102. Question about CCS used in Morgan Jones' book.
  103. Layout question -- Do PS chokes inject hum into output caps?
  104. Pickering 132e record compensator
  105. Gain in Aikido for F4 + fe208ez?
  106. Audio note kit 1 power transformer
  107. DC Cancellation using Secondary Winding of Gapless OPT
  108. help for power transformer for scott 99d amp
  109. Altec 342B bridging
  110. Kofi's Uniamp
  111. Please help with vexing grounding issue
  112. 6V6 class A2
  113. Buzzing Preamp
  114. 6922/E88CC in Parallel Mode without Cathode Resistors?
  115. 211 based on iGoliath Amplifier
  116. Art Audio UK dm vps
  117. Power supply conversion.
  118. EL84/6BQ5 tube amp project
  119. Little Bear P8 Amp Questions.
  120. 6k6 gt rca radiotron tube ?????
  121. The Guiguang 300B have good bass ?
  122. Ampex 300 Input Transformer
  123. Recap Heathkit A-7 amplifier.
  124. Testing KT-120
  125. 27GB5/PL504 The Same?
  126. Running Eico ST70 at 90 volts.
  127. TU-8200 with speakers 94db
  128. Magic behind Mentor
  129. dn2540 noise
  130. Rectifier PIV derated for altitude ?
  131. CLC psu for headamp?
  132. Teeco 610d amplifier schematic
  133. Has anyone tried the Aleph CCS in a tube amp?
  134. Question on 6 pin umbilical cord for tube power supply
  135. Transformer Spacing
  136. Can this be done?
  137. Low Voltage (60V) Stereo Tube Amplifier for Dummies (2+2W)
  138. Comparing OPS.
  139. Question on PSUD2 or My Ignorance!
  140. 8BU11 pentode section driving output transformer
  141. Schematic for Cary 300SEI
  142. parallel tubes
  143. 211 grid current
  144. Issues with Mcintosh MC2000
  145. 833a spud amplifier
  146. Klipsch 6.5" Bookshelf Good for 1W SE?
  147. Pete Millett Compactron Triple triode push-pull driver PCB for 6L6GC AB2 amp
  148. Sonic Frontiers Line 3 tubes and cap recommendations
  149. Problem with my Tentlab Transport
  150. Cheap and Cheerful GE 35EH5 SE Amp That Hums
  151. Bench Power Supply Safety
  152. Comments on this preamp?
  153. VoltSecond things that make You say OUCH!
  154. 'Selectron' tubes: From where?
  155. Tony's 6C33 pp amp build progress....
  156. power transformer voltage change
  157. Getting the Urge to Play More
  158. Valve Testing - Help
  159. 10Y/VT-25
  160. GM-70 Socket
  161. Radical Reshape of Magnavox Console Amp
  162. JC Morrison
  163. Daven 3 tube amplifier
  164. ecc82/83 questions
  165. Australian AWV Valve Date Codes
  166. Anyone need a 5U4 ?
  167. Help in identify manufacturer (chicken feet?)
  168. g1 grid stoppers
  169. Lot of tubes needs a new home.....
  170. Differential Bias
  171. British Vacuum Cleaner £ Eng Co Ltd - Goblin
  172. output cap and stepped vol advice. Cary SLP50
  173. Sony TC-500 Gives Its All
  174. Another 211 monobloc
  175. 6N1P-EV Voskhod or Anod manufactured better sounding?
  176. help with long tail pair bandwidth
  177. Anyone have both an Eico HF-81 and Akai M-8?
  178. Sylvania Engineering Sample 12ax7
  179. Between 5AR4/GZ34, 6CH3/6CJ3 and 6D22S anode resistance
  180. One-tube simple amplifier sound experiment
  181. CK1006 ignition voltage?
  182. First build- dual mono octal linestage
  183. schematic for Baldwin 3 chan organ amp
  184. output transformer inquiry.
  185. 807 triode strapped amp - few questions
  186. HV power supply with filament bias
  187. newbie with oldie! (klemt m40 valve amp)
  188. too high voltage supply HELP
  189. 6Y6G Triode Curves
  190. A Tube buffer question from a Tube newbie
  191. Marantz 7c Question - HELP !
  192. Western Electric 555 receiver (Horn Driver)
  193. Getter heater & B+ sequencing ?
  194. Tube Amplifier with 30P1S SE
  195. Little OTL / Class " A "
  196. ATC SEMITEC DIODE, CURRENT REGULATOR
  197. seperate heater transformer advice please
  198. MQ 420-SL OTs
  199. Frequency Response of Williamson Amplifier in LTspice
  200. Edcor transformer upgrade for K12G tube amp?
  201. Transformers placement under PCB
  202. OT PP Hashimoto HW-100-5 tube amp?
  203. Winding an output transformer for headphones ? Some questions
  204. Push Pull OPT Primary Impedance
  205. Tube compliment substitution question. 6gw8 to ?
  206. Watts or Db/watt ?
  207. A question about the OPT Design Assistant software and Impedance matching
  208. XF86
  209. GM70 OTL ???
  210. Output transformer impedance matching
  211. Distortion in 1 channel
  212. need to know operating voltage for 6f6 tube amp
  213. The 2A3 build is in dream state
  214. Alembic F2B clone hum & noise
  215. Spice Question
  216. Are large SE amps like 211/845 viable!
  217. Power transformer & heater wiring questions
  218. Parallel KT88 SET Amp
  219. Why people keep talking about using pentodes in triode mode for power amp?
  220. Mono series attenuators vs. PEC for balance control?
  221. TubeTech e813cc Pair for sale on eBay.
  222. Help with new pp kt77
  223. Is 5 Watts enough?
  224. First amp advice for a Newbie
  225. Tube/valve stuff in Tokyo
  226. Advice for a neophyte
  227. EML300B reliability
  228. User's Manual Golden Tube SEP1
  229. DIY to compete with commercial
  230. Ferrite Core vs. Laminations for 2 watt OPT
  231. generating burst waveform in OrCAD® Capture program
  232. O.T. with Litz wire
  233. Valve upgrade T.A.C. 34MK
  234. Another KT88 SE Abdellah with bias issues
  235. Lowering plate dissipation
  236. A helping hand with a diyed 5687 pre, anyone?
  237. Curtis Mathes Royal Dane
  238. Buzzing decreasing with volume
  239. Fluro Ballast as DIY choke?
  240. 5R4GA ws 5R4WGB
  241. Vintage Webcor Reel to Reel Cap Value Replacement
  242. Coupling Capacitor question
  243. Aikido preamp: 12AU7 or 6CF7/6FQ7 ???
  244. Help needed to identify this Knight Mono Integrated Amp
  245. Winding my own OT
  246. Need a scope screenshot/photo of a Tube clipping
  247. isolating tube sockets
  248. tube cathode bias question: resistor / diode
  249. Silicon Chip mag "Currawong" amp
  250. Vibration spec of 6L6GC ?

Content Relevant URLs by vBSEO 3.3.2