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 99 100 101 102 103 104 105

  1. A sorry tale which will make you cry !!!
  2. Variac problems
  3. tubeamp project, weekend timekiller
  4. isolated supply grounding
  5. Car preamp with Aikido
  6. Audio Note M1 potentiometer question
  7. Beginner , tube kit suggestions please
  8. anyone ever used metalized polypropylene caps from Digi-key?
  9. Question on OPT
  10. Telefunken S80 Stereo ECL82 Amp- any comment?
  11. Active crossovers using Tubes
  12. 300BSE power amplifier circuit
  13. tube buffer using 12bz7
  14. "Complete" SE KT88
  15. Output Tube biasing for Toroidal Output Transformer
  16. Cardas Golden Capacitors
  17. Tube Buffer for CD-PRO2M (6922)
  18. Troubleshooting fuse blowing
  19. Billington valves and quallity
  20. Regulated PSU, your comments please.
  21. Change coupling cap from .47uf to 2.2uf
  22. RIAA Schematics?
  23. Line out for subwoofer in tube amps
  24. Feedback in IT coupled amps?
  25. Filemant Voltage
  26. DC compensated SE output transformer
  27. Winding an audio transformer
  28. Tube effects Loop Schematics... ?
  29. Scrap Heathkit W-5m for guitar amp?
  30. KT100...what's this ??
  31. Help measuring output impedience
  32. tubes
  33. Need PP KT-88 amp design and KT-88 for triode use?
  34. 7241 tube
  35. Max B+ for 807 UL?
  36. Fender amplifier.. burnt choke ??
  37. Problem with my Darling!
  38. Effect of cross-coupled "local" FB on plate load of previous stage
  39. wickedly awsome guitar amp
  40. DC coupled long tailed pairs
  41. I need an advice for these tubes..
  42. Anode Resistors on PPP Amps
  43. help with modifing a H/K A500 amp
  44. Damper Diode Musings
  45. Heater Question
  46. Push pull designs.
  47. Anybody heard about Tarzian Silicon Rectifier for Tube Rectifier Replacement?
  48. Voice of Music 555 phonograph
  49. Direct driving of GM70 by one ECL86 ???
  50. Bogen amp schematic
  51. 6336a
  52. Power transformer colors & wiring
  53. Stepped Attenuator and Selector Switch
  54. Music without speakers? Need help.
  55. el84 ultra linear datat sheet
  56. 2a3 layout
  57. Matisse Ref per amp
  58. Recommendations for Simple SET Amp Topologies
  59. HV power supply repair
  60. Grundig Model 3265U Restore?
  61. Valve Art EL 156!
  62. Classe A 6550 40W
  63. Lafayette Bypass Option
  64. Plate curves or Op Point for 6KN8?
  65. 12e1 sub for 807 ?
  66. Extremely low power and low loss transformers
  67. looking for power supply diagram SE 813 45 Watt
  68. How to make this 6C33C better??
  69. All octal 6AS7 PP amp is it possible?
  70. Toroids VS EI Transfomers
  71. Bias secrets for a HH Scott 233?!?
  72. new idea of DHT heater supply
  73. Eastern Audio transformers: any good?
  74. UL40-S2 schematic
  75. Tube monster amplifier
  76. Big pentode help!
  77. which one?
  78. system matching
  79. a 5ar4 problem
  80. coupling capacitor intermediate values
  81. Quicksilver Mono 60 upgrades
  82. Can anything be done
  83. OTL ECC88 amp
  84. Bridging Mono Blocks
  85. Cathode-coupled Phase Splitter Formula
  86. Drd 45, 300b
  87. SV572-30: Opinions?
  88. Poor man's transformer volume control?
  89. Output current of this CAT SL-1 schematic ?
  90. Fixed Bias Circuit for 300B
  91. want to build SE450TL
  92. Tubes lifetime and sound
  93. Heater supply problem?
  94. Lowering HV secondary on Power Transformer
  95. Van der Veen 70W tube Amp DIY
  96. 5751 for marantz 7 linestage
  97. To be or not to be, UL or quad?
  98. Tube Failure
  99. 12AX7 Compared!
  100. transformer case grounding
  101. pre/amplifier grounding
  102. First Time Amp
  103. 6ck4 pp amp
  104. JJ electros, any good?
  105. 6AQ5A guitar amp revisited
  106. fun with amps
  107. Newbie needs clarification
  108. looking for powerful Single Ended diagram.
  109. Power amp output newbie question
  110. SE ultralinear amplifier generate a lot of Odd harmonics ?
  111. Grounding Filament CT?
  112. one more 12B4A preamp
  113. 6V6PP -> 6L6 PP with triode connection.
  114. ? about powering a sub with a Fisher 30a mono amp.
  115. Will This Blow Up?
  116. Pin out conversion 6V6-6AQ5A
  117. 211
  118. Nice looking rectifier tubes help
  119. Stepped attenuator inquiry
  120. Designing a Phonostage with the S&B 10K LCR RIAA Module
  121. 211 tube
  122. The T-Rex SET Amplifier DIY project
  123. Strange Wiring in Bogen 6v6 PP
  124. 6AS7 amp schematics
  125. Blue glow confused :(
  126. 6V6 SE and Screen Grid Voltage
  127. 6BQ5 <-> 6V6 without socket job...Any Idea?
  128. Melbourne, Australia valve enthusiasts check in!
  129. HELP! Blown R + HIGH V!
  130. PCB Pad Layout for B9A Noval
  131. DIY tube amps - help??
  132. New home made S.E amps
  133. Amplifier Oscillation
  134. First project, need guidance
  135. Cap max value after 6X5GT/EZ35 rectifier?
  136. Any tube-heads in Scotland?
  137. Care and Feeding of Tube Pins / Sockets
  138. MFA Luminescence--need schematic
  139. Tube technology amplifier
  140. Transformer questions
  141. Siemens C3g headamp problem
  142. rca83 hash?
  143. Skyline SK-10 Amplifier info?
  144. Tube Stereo Consoles from Thrift Stores
  145. Aikido amp theoretical questions
  146. 6V6 Single and 12AT7 SRPP
  147. What 45 SET amp should I build?
  148. Ping. Burnedfingers...
  149. ? problem with www.ampwares.com ?
  150. Pentode spud...?
  151. Type 46 as voltage amplifier
  152. Tube compressor problem!
  153. Using the 83
  154. Organ amp project
  155. Any feedback on these trannies?
  156. 300B PP bias and expected life time
  157. Mono block restoration
  158. Question about cathode bypass capacitor
  159. www.diytube.com Kits
  160. need help!
  161. Need opinion on PS for tube preamp.
  162. Stanley Mullard
  163. 6AK4, Anyone?
  164. interstage transformer
  165. Are matched sets important for this amp?
  166. What to do with ECC88's?
  167. EL38's ?
  168. Cables/tubes for Valve Amp
  169. 8233 / E55L Applications
  170. amplimo budget outputtransformer
  171. Output Transformers for WE-437a WOT Line Preamp
  172. plate resistor, input lead
  173. KT88 PP with Class-A/Class-AB switch
  174. very loud preamp
  175. Pentode current sink
  176. Hammond vs. James?
  177. Tubes for Scott Nixon dac
  178. James SE OPT for 300B & 2A3 on eBay
  179. pre-amp with 6as7??
  180. pre-amp with voltage gain from transformer only
  181. Help! Mystery tube (?) amp (type: HK56)
  182. Regulate the high voltage making better sound? (Preamp)
  183. Power Transformer
  184. Potentiometers UK
  185. AC 120V, neutral, hot, ground
  186. Counterpoint SA-220 Tube section advice needed
  187. 807 Amp
  188. Help me to choose the adequate ferrites
  189. Looking for KT88 circuits.
  190. Building a power amp - help
  191. Sovtek EL34WXT.
  192. Microphonic
  193. preamp gain and output transformer question
  194. Would an s5 K-12M kit suffice?
  195. 6c45 and passive volume control?
  196. Something of Interest to Newbies
  197. Fender Output transformer as an audio amp part
  198. Chinese Tube Amp & DIY .. Pro & Con
  199. Franks Ultimate Preamp....
  200. Interstage Transformer Nomenclature
  201. PP or SE for Horns?
  202. Output transformer in SIMetrix?
  203. seampcad
  204. Looking for an amp project
  205. Unison Research Smart 845 schematics
  206. 8233, 8116 &amp; 6BZ6 valves - what are they good for?
  207. HELP - From the audiophile Heads - Amp Advice
  208. wires of output transformer are too thin!
  209. Reichert Feral Eye
  210. BIG LOUD SCREECH on LEFT channel only
  211. humming from volume
  212. Paia TubeHead and Symmetry Trims
  213. Output trafo for WE-91 L'Audiophile amp?
  214. Transformer voltage too high for 300B amp
  215. More shopping help please - GE Combo 330
  216. Bias filtering
  217. PP pentode screen supply
  218. 6v6 and OPT with 10-12k ohm(primary impedence)
  219. Identity Help - Is it worth working on
  220. Need info about 5G84 tube
  221. RF Noise in Power Supply
  222. My audionote Kit one have problem on 300B cathode terminal
  223. Partial Feedback Amplifiers
  224. filament transformer vs plate transformer
  225. Any subs for 6N1 & 6N2 twin triode valves?
  226. PSU questions
  227. Any designs for 6EJ7 out there?
  228. SRPP headphoneamp with E88CC
  229. newbie to DIY
  230. Just bought a leak stereo 20 (pics!)
  231. Mysterious Output Transformer....
  232. Hum free 5687 AC filament supply, is it possable ?
  233. Will This Preamp Work
  234. help with input pot on el84 PP amp
  235. NOS Philmore Output Transformern or Modern
  236. tube amp
  237. power supply, Help please!!!
  238. Tubes and magnetic fields
  239. Driver tube for 45 interstage 1:1
  240. 89 db is it enough ?
  241. Troubl-shooting heater voltage for filament
  242. arcing in rectifier tube
  243. 1/8" Aluminum for top plate?
  244. Shopping list
  245. 6sn7 valves
  246. Neon flashes with the music
  247. Help in SE 807 amp
  248. naim user defects to valves !
  249. tamura opt need help
  250. Line stage question

Content Relevant URLs by vBSEO 3.3.2