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

  1. Amp for JBL 2447 driver?
  2. Rare Philips 12ax7 Code Need Help
  3. Two quick questions on 35W4
  4. To convert Novar pins for Magnovale pins
  5. Mingda mc7r late design tweaking
  6. PSU for KT-90 PPP
  7. Noisy amp
  8. Book Recommendation for Newbies
  9. High power GU46 SE amplifier - help with certain issues
  10. BOYUU HIFI EXQUIS A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod
  11. Unknown SE output transformer wiring
  12. Class A output without all the heat cheat
  13. Grid leak bias - Easy to overload?
  14. How about LTP with degenerate resistor?
  15. 1200 vdc capacitor tube amp.
  16. Telefunken OPT
  17. Fixed bias question
  18. Question about loadline in Morgan Jones
  19. Please explain this power supply...
  20. 6SN7 - EL84 SE with interstage?
  21. 211 amp test. Square wave measures
  22. SAC thailand OPT for 211/845
  23. 6P21s
  24. 6L7M, Is there any use in audio?
  25. 958a Line Preamp
  26. What capacitors do i need for this?
  27. Experience of the TentLabs Bias control modules?
  28. Simple Line Stage Topology
  29. compound/hybrid amp
  30. 6CJ3's in full wave rectifier
  31. CCS anode load overcomes 3/2 law non-linearity
  32. EL84 PP OT design for amp project
  33. $3k o/p XFR
  34. Jadis Factory Tour
  35. Considerations for Tubelab Simplse
  36. "budget" headphone amp
  37. Power Pulse Tetrode for Audio
  38. The SE UL 6P41S USSR
  39. buzz from dacmagic on kit st70
  40. WE 350B and WE311B available
  41. How determine p-g1 capacitance in trioded pentode
  42. Why Is My Single Chassis #26 PreAmp So Stable!
  43. Rare tube
  44. Allan's rantings
  45. Tube Amp problem ?
  46. Tube preamp SS PS slight thump like dead wax on an LP
  47. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  48. SET's first ripple in a big wave ? Here it is . . .
  49. Fourier Chassis for the shipping costs
  50. 6P3S/6L6GB Amplifier from scrap parts :)
  51. Choke loaded 6ax4 bridge
  52. Transformer and choke orientation question
  53. Why some people want DC coupling in power amp?
  54. want to diy a tube preamp using only 12 volts help
  55. Russian 6p3s??
  56. Single-ended 8w amp
  57. Hovland HP 100
  58. Simple Line Stage Expanded
  59. Bridge Rectifier with Fullwave Tube
  60. Can anyone help diagnose this SOHA II amp channel?
  61. Schade and the 6C33C
  62. AMC 3030 annoying ripple noise
  63. Question and comments on SE vs PP by Eddie Vaughn
  64. 6080 PSE output Tx?
  65. Difference Between Self-Inverting Push Pull and Anti-Triode?
  66. Is this capacitor required?
  67. Why nowadays tube amplifier should play better than 1960's amplifiers?
  68. Aikido 12vac
  69. iPod to Adcom tube buffer
  70. Referencing a direct coupled output stage
  71. Long lead length to tube socket
  72. 6FH8 a strange tube for audio?
  73. Troubleshooting a µ-follower
  74. unison research unico thump on power on?
  75. CCS Not Working
  76. Allied 333 Hum
  77. EL34 Grid 3 connection
  78. The differential amplifier
  79. low power otl amplifier
  80. Using two stage opamp as first gain stage of power amp.
  81. Standing opts and lying pts?
  82. Tube substitition wanted
  83. Fatman Wi-Tube Hybrid Valve Amplifier with FatDock - No Output
  84. Operating point for 6SN7
  85. Which is the ultimate, perfect negative feedback amount you recommend in UL SE?
  86. Where to buy McIntosh Tube Amplifier Parts?
  87. comments/corrections on 6bg6 pp triode amp
  88. Question about LTP in Morgan Jones' book
  89. Matching 16 ohm loudspeaker into 8 ohm output transformer: can i do any modification?
  90. EL34 SE ultralinear configuration working as a triode: pro and cons
  91. First Build Help Needed - Transformer
  92. dynaco st70 headphone amp
  93. Velleman 4040 rebuild
  94. help needed for heater wiring of a 300B
  95. Best UX4 sockets?
  96. Filson 216 phono rework, advice please
  97. IRFS820B
  98. Help converting integrated amp to preamp
  99. 6N16B triodes: asking advice
  100. D3a IV
  101. stability of bias of KT88 in Xindak V30
  102. half 6SN7 / 6CG7 7pin mini substitute?
  103. Simple Line Stage
  104. 6L6GC redplating - what say you please?
  105. Yaqin MC-10L no bass response
  106. My first phono pre
  107. Fet rectifier?
  108. PSpice simulation
  109. Two-cases amplifier, question about power switch
  110. VTL bias problems compact 100
  111. Assembly Manual heathkit a7-b
  112. Question about CCS used in Morgan Jones' book.
  113. Layout question -- Do PS chokes inject hum into output caps?
  114. Pickering 132e record compensator
  115. Gain in Aikido for F4 + fe208ez?
  116. Audio note kit 1 power transformer
  117. DC Cancellation using Secondary Winding of Gapless OPT
  118. help for power transformer for scott 99d amp
  119. New rack mounted chassis
  120. Altec 342B bridging
  121. Kofi's Uniamp
  122. Please help with vexing grounding issue
  123. 6V6 class A2
  124. Buzzing Preamp
  125. 6922/E88CC in Parallel Mode without Cathode Resistors?
  126. 211 based on iGoliath Amplifier
  127. Art Audio UK dm vps
  128. Power supply conversion.
  129. EL84/6BQ5 tube amp project
  130. Little Bear P8 Amp Questions.
  131. 6k6 gt rca radiotron tube ?????
  132. The Guiguang 300B have good bass ?
  133. Ampex 300 Input Transformer
  134. Recap Heathkit A-7 amplifier.
  135. Testing KT-120
  136. 27GB5/PL504 The Same?
  137. Running Eico ST70 at 90 volts.
  138. TU-8200 with speakers 94db
  139. Magic behind Mentor
  140. dn2540 noise
  141. Rectifier PIV derated for altitude ?
  142. CLC psu for headamp?
  143. Teeco 610d amplifier schematic
  144. Has anyone tried the Aleph CCS in a tube amp?
  145. Question on 6 pin umbilical cord for tube power supply
  146. Transformer Spacing
  147. Can this be done?
  148. Low Voltage (60V) Stereo Tube Amplifier for Dummies (2+2W)
  149. Comparing OPS.
  150. Question on PSUD2 or My Ignorance!
  151. 8BU11 pentode section driving output transformer
  152. Schematic for Cary 300SEI
  153. parallel tubes
  154. 211 grid current
  155. Issues with Mcintosh MC2000
  156. 833a spud amplifier
  157. Klipsch 6.5" Bookshelf Good for 1W SE?
  158. Pete Millett Compactron Triple triode push-pull driver PCB for 6L6GC AB2 amp
  159. Sonic Frontiers Line 3 tubes and cap recommendations
  160. Problem with my Tentlab Transport
  161. Cheap and Cheerful GE 35EH5 SE Amp That Hums
  162. Bench Power Supply Safety
  163. Comments on this preamp?
  164. VoltSecond things that make You say OUCH!
  165. 'Selectron' tubes: From where?
  166. Tony's 6C33 pp amp build progress....
  167. power transformer voltage change
  168. Getting the Urge to Play More
  169. Valve Testing - Help
  170. 10Y/VT-25
  171. GM-70 Socket
  172. Radical Reshape of Magnavox Console Amp
  173. JC Morrison
  174. Daven 3 tube amplifier
  175. ecc82/83 questions
  176. Australian AWV Valve Date Codes
  177. Increasing feedback to Tubelab simple pp
  178. Anyone need a 5U4 ?
  179. Help in identify manufacturer (chicken feet?)
  180. g1 grid stoppers
  181. Lot of tubes needs a new home.....
  182. Differential Bias
  183. British Vacuum Cleaner £ Eng Co Ltd - Goblin
  184. output cap and stepped vol advice. Cary SLP50
  185. Sony TC-500 Gives Its All
  186. Another 211 monobloc
  187. 6N1P-EV Voskhod or Anod manufactured better sounding?
  188. help with long tail pair bandwidth
  189. Anyone have both an Eico HF-81 and Akai M-8?
  190. Sylvania Engineering Sample 12ax7
  191. Diy toroid transformers for 5E3 guitar amp?
  192. Between 5AR4/GZ34, 6CH3/6CJ3 and 6D22S anode resistance
  193. One-tube simple amplifier sound experiment
  194. CK1006 ignition voltage?
  195. First build- dual mono octal linestage
  196. schematic for Baldwin 3 chan organ amp
  197. output transformer inquiry.
  198. 807 triode strapped amp - few questions
  199. HV power supply with filament bias
  200. newbie with oldie! (klemt m40 valve amp)
  201. too high voltage supply HELP
  202. 6Y6G Triode Curves
  203. A Tube buffer question from a Tube newbie
  204. Marantz 7c Question - HELP !
  205. Western Electric 555 receiver (Horn Driver)
  206. Getter heater & B+ sequencing ?
  207. Tube Amplifier with 30P1S SE
  208. Little OTL / Class " A "
  209. ATC SEMITEC DIODE, CURRENT REGULATOR
  210. seperate heater transformer advice please
  211. MQ 420-SL OTs
  212. Frequency Response of Williamson Amplifier in LTspice
  213. Edcor transformer upgrade for K12G tube amp?
  214. Transformers placement under PCB
  215. OT PP Hashimoto HW-100-5 tube amp?
  216. Winding an output transformer for headphones ? Some questions
  217. Push Pull OPT Primary Impedance
  218. Tube compliment substitution question. 6gw8 to ?
  219. Watts or Db/watt ?
  220. A question about the OPT Design Assistant software and Impedance matching
  221. XF86
  222. GM70 OTL ???
  223. Output transformer impedance matching
  224. Distortion in 1 channel
  225. HV Electrolytic Caps Question
  226. need to know operating voltage for 6f6 tube amp
  227. The 2A3 build is in dream state
  228. Alembic F2B clone hum & noise
  229. Spice Question
  230. Are large SE amps like 211/845 viable!
  231. Power transformer & heater wiring questions
  232. Parallel KT88 SET Amp
  233. Why people keep talking about using pentodes in triode mode for power amp?
  234. Mono series attenuators vs. PEC for balance control?
  235. TubeTech e813cc Pair for sale on eBay.
  236. Help with new pp kt77
  237. Is 5 Watts enough?
  238. First amp advice for a Newbie
  239. Tube/valve stuff in Tokyo
  240. Advice for a neophyte
  241. EML300B reliability
  242. User's Manual Golden Tube SEP1
  243. DIY to compete with commercial
  244. Ferrite Core vs. Laminations for 2 watt OPT
  245. generating burst waveform in OrCAD® Capture program
  246. O.T. with Litz wire
  247. Valve upgrade T.A.C. 34MK
  248. Another KT88 SE Abdellah with bias issues
  249. Lowering plate dissipation
  250. A helping hand with a diyed 5687 pre, anyone?

Content Relevant URLs by vBSEO 3.3.2