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

  1. system matching
  2. a 5ar4 problem
  3. coupling capacitor intermediate values
  4. Quicksilver Mono 60 upgrades
  5. Can anything be done
  6. OTL ECC88 amp
  7. Bridging Mono Blocks
  8. Cathode-coupled Phase Splitter Formula
  9. Drd 45, 300b
  10. SV572-30: Opinions?
  11. Poor man's transformer volume control?
  12. Output current of this CAT SL-1 schematic ?
  13. Fixed Bias Circuit for 300B
  14. want to build SE450TL
  15. Tubes lifetime and sound
  16. Heater supply problem?
  17. Lowering HV secondary on Power Transformer
  18. Van der Veen 70W tube Amp DIY
  19. 5751 for marantz 7 linestage
  20. To be or not to be, UL or quad?
  21. Tube Failure
  22. 12AX7 Compared!
  23. transformer case grounding
  24. pre/amplifier grounding
  25. First Time Amp
  26. 6ck4 pp amp
  27. JJ electros, any good?
  28. 6AQ5A guitar amp revisited
  29. fun with amps
  30. Newbie needs clarification
  31. looking for powerful Single Ended diagram.
  32. Power amp output newbie question
  33. SE ultralinear amplifier generate a lot of Odd harmonics ?
  34. Grounding Filament CT?
  35. one more 12B4A preamp
  36. 6V6PP -> 6L6 PP with triode connection.
  37. ? about powering a sub with a Fisher 30a mono amp.
  38. Will This Blow Up?
  39. Pin out conversion 6V6-6AQ5A
  40. 211
  41. Nice looking rectifier tubes help
  42. Stepped attenuator inquiry
  43. Designing a Phonostage with the S&B 10K LCR RIAA Module
  44. 211 tube
  45. The T-Rex SET Amplifier DIY project
  46. Strange Wiring in Bogen 6v6 PP
  47. 6AS7 amp schematics
  48. Blue glow confused :(
  49. 6V6 SE and Screen Grid Voltage
  50. 6BQ5 <-> 6V6 without socket job...Any Idea?
  51. Melbourne, Australia valve enthusiasts check in!
  52. HELP! Blown R + HIGH V!
  53. PCB Pad Layout for B9A Noval
  54. DIY tube amps - help??
  55. New home made S.E amps
  56. Amplifier Oscillation
  57. First project, need guidance
  58. Cap max value after 6X5GT/EZ35 rectifier?
  59. Any tube-heads in Scotland?
  60. Care and Feeding of Tube Pins / Sockets
  61. MFA Luminescence--need schematic
  62. Tube technology amplifier
  63. Transformer questions
  64. Siemens C3g headamp problem
  65. rca83 hash?
  66. Skyline SK-10 Amplifier info?
  67. Tube Stereo Consoles from Thrift Stores
  68. Aikido amp theoretical questions
  69. 6V6 Single and 12AT7 SRPP
  70. What 45 SET amp should I build?
  71. Ping. Burnedfingers...
  72. ? problem with www.ampwares.com ?
  73. Pentode spud...?
  74. Type 46 as voltage amplifier
  75. Tube compressor problem!
  76. Using the 83
  77. Organ amp project
  78. Any feedback on these trannies?
  79. 300B PP bias and expected life time
  80. Mono block restoration
  81. Question about cathode bypass capacitor
  82. www.diytube.com Kits
  83. need help!
  84. Need opinion on PS for tube preamp.
  85. Stanley Mullard
  86. 6AK4, Anyone?
  87. interstage transformer
  88. Are matched sets important for this amp?
  89. What to do with ECC88's?
  90. EL38's ?
  91. Cables/tubes for Valve Amp
  92. 8233 / E55L Applications
  93. amplimo budget outputtransformer
  94. Output Transformers for WE-437a WOT Line Preamp
  95. plate resistor, input lead
  96. KT88 PP with Class-A/Class-AB switch
  97. very loud preamp
  98. Pentode current sink
  99. Hammond vs. James?
  100. Tubes for Scott Nixon dac
  101. James SE OPT for 300B & 2A3 on eBay
  102. pre-amp with 6as7??
  103. pre-amp with voltage gain from transformer only
  104. Help! Mystery tube (?) amp (type: HK56)
  105. Regulate the high voltage making better sound? (Preamp)
  106. Power Transformer
  107. Potentiometers UK
  108. AC 120V, neutral, hot, ground
  109. Counterpoint SA-220 Tube section advice needed
  110. 807 Amp
  111. Help me to choose the adequate ferrites
  112. Looking for KT88 circuits.
  113. Building a power amp - help
  114. Sovtek EL34WXT.
  115. Microphonic
  116. preamp gain and output transformer question
  117. Would an s5 K-12M kit suffice?
  118. 6c45 and passive volume control?
  119. Something of Interest to Newbies
  120. Fender Output transformer as an audio amp part
  121. Chinese Tube Amp & DIY .. Pro & Con
  122. Franks Ultimate Preamp....
  123. Interstage Transformer Nomenclature
  124. PP or SE for Horns?
  125. Output transformer in SIMetrix?
  126. seampcad
  127. Looking for an amp project
  128. Unison Research Smart 845 schematics
  129. HELP - From the audiophile Heads - Amp Advice
  130. 8233, 8116 &amp; 6BZ6 valves - what are they good for?
  131. wires of output transformer are too thin!
  132. Reichert Feral Eye
  133. BIG LOUD SCREECH on LEFT channel only
  134. humming from volume
  135. Paia TubeHead and Symmetry Trims
  136. Output trafo for WE-91 L'Audiophile amp?
  137. Transformer voltage too high for 300B amp
  138. More shopping help please - GE Combo 330
  139. Bias filtering
  140. PP pentode screen supply
  141. 6v6 and OPT with 10-12k ohm(primary impedence)
  142. Identity Help - Is it worth working on
  143. Need info about 5G84 tube
  144. RF Noise in Power Supply
  145. My audionote Kit one have problem on 300B cathode terminal
  146. Partial Feedback Amplifiers
  147. filament transformer vs plate transformer
  148. Any subs for 6N1 & 6N2 twin triode valves?
  149. PSU questions
  150. Any designs for 6EJ7 out there?
  151. SRPP headphoneamp with E88CC
  152. newbie to DIY
  153. Just bought a leak stereo 20 (pics!)
  154. Mysterious Output Transformer....
  155. Hum free 5687 AC filament supply, is it possable ?
  156. Will This Preamp Work
  157. help with input pot on el84 PP amp
  158. NOS Philmore Output Transformern or Modern
  159. tube amp
  160. power supply, Help please!!!
  161. Tubes and magnetic fields
  162. Driver tube for 45 interstage 1:1
  163. 89 db is it enough ?
  164. Troubl-shooting heater voltage for filament
  165. arcing in rectifier tube
  166. 1/8" Aluminum for top plate?
  167. Shopping list
  168. 6sn7 valves
  169. Neon flashes with the music
  170. Help in SE 807 amp
  171. naim user defects to valves !
  172. tamura opt need help
  173. Line stage question
  174. Tube question, how to read the difference.
  175. What Tube amp for Biginner?
  176. Leak Stereo 20 rebuild/restore question
  177. Is there any advantage in using preamp tubes in output stages ??
  178. 12b4 as PP output tubes
  179. Valves stripped bare….
  180. Anybody know this TUBE?
  181. Noob Q: are the efficiency figures for valve amps the same as with transistors?
  182. Need help understanding something about UL stages
  183. I'd like to make a simple 50 amplifier
  184. gates tube pre-amp info??
  185. OT - To those who correspond with me....
  186. Could use info on Grommes + knight.
  187. Single Ended Ultra linear, anyone built one?
  188. Audio Innovations 800 Anniversary problem
  189. Transformer coupled 6SN7 push-pull DAC output stage?
  190. Vkh max voltage
  191. Mosfet differences with valves
  192. Need schematic - Audio Research LS2B MKII
  193. EL84M specs.
  194. What to do with these?
  195. Dyna Mk IV Driver Boards
  196. OTL driving series arrays
  197. Voltage problem
  198. Amp intermittently blowing fuse at power up
  199. Worlds Best Preamp
  200. Heathkit TT-1A Calibration
  201. surplus 12ax7a
  202. Phase Splitter as input stage
  203. DHT DC heater question
  204. Wanted-Assembly manual for Scott LK-150
  205. Happy new year, sophielove.
  206. Need UTC PVM-3 primary ?
  207. power amp for small studio
  208. Preamp
  209. Problems with EICO HF-12 amp.
  210. Technics SU-30A's schema???
  211. Tube PWM driver
  212. Tungsram tube data
  213. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  214. sharp cutoff pentode
  215. JJ E34L failure(s)
  216. Valve effects loop
  217. Bruce Moore "Companion" - Schematic
  218. CT impedence mismatch?
  219. Tube multiplex adapter parts replacement
  220. SY gets jiggy (5692 measurements)
  221. Tube Drag Racing!
  222. OTL, quick `n dirty
  223. 6V6 stereo amp
  224. humming from amplifier
  225. Mesa boogie
  226. Any tube audiophile in New Dephli, India
  227. What are terminal 1 & 4 of 300B tube
  228. Tube Nube - need advice on Scott LK150
  229. Pentode AB1 or AB2?
  230. #56 tube line stage
  231. **** another unusual hum problem !!
  232. Any comments on Eico HF-14 and HF-85
  233. sensitivities of amplifier configurations
  234. Building a Sun Audio sv 300b Mk II clone
  235. wanted information! vellman vaa-70 tube amp
  236. old tubes, what to do?
  237. Knowledge needed. Need answer to basic yet puzzling question.
  238. tubes 5965A and 5814A
  239. 6s4a as driver for 6as7 in SEAmp
  240. Tube Manufactures Cross references
  241. KT88 vs. KT90 bench test
  242. Variable Voltage Technology(uk) iron
  243. Tutorial: building techniques
  244. Anyone tried UL or Triode connecting the $140 kit ?
  245. Using microphone transformers as phase splitters .
  246. Tube Cooling Recommendations
  247. WE 300B Vs &amp;&amp;&amp;&amp;
  248. Line stage board off from overseas. problems
  249. Volume control for tube amplifier ??
  250. Mro Pt8

Content Relevant URLs by vBSEO 3.3.2