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

  1. Please Look at my circuit
  2. EL34 tube amp that needs work on
  3. question on differential stage
  4. Need help with my ST70, decrease in one channel
  5. Diff drive
  6. Stereo Aikido GND help
  7. Hashimoto HL-20K-6 Line Output Transformers
  8. What is the RIGHT way to calculate the Value of the cathode resistor?
  9. Kt88 Se
  10. ping Tom Schlangen
  11. Found An Old Transformer, Now What???
  12. Brook 22A restoration, HELP!!
  13. Optimal operating point for 7N7/6SN7?
  14. Loudness Control Calc - Help Please
  15. Kofi Annan in: "Cascodin' with Steve Bench's RIAA!"
  16. New 300B PP amp completed, phase shift questions
  17. One more PSU2 question
  18. 5U4 Darling power TX advice needed
  19. how to optimize this pentode PP (PP1 clone with S11E12)
  20. Can I change the input to a 6SL7?
  21. Outputtransformer to IGA 6550C ULPP
  22. Question on use PSUD2 software
  23. Please add to my confusion re stepup transformers
  24. filament power supply question
  25. Major Hum Problem
  26. FARMER LAMP amp
  27. Valve amp "master class"
  28. Toroid power transformers - are they a good idea?
  29. EL84 SE amplifier
  30. Gain Problems
  31. My SE KT-88 Build thread
  32. Rolling da(rling's) 6j4wa
  33. Phono pre amp
  34. Michealson Audio Da Vinci Preamp
  35. Acrosound PP 6550: Any Advice?
  36. PS idea: isolating transformer from load
  37. K-16LS Help Please
  38. 6N6P-I life-time
  39. Filament Xformer woes...
  40. The Use of 1:1 Input Transformers in Linestages
  41. 12hg7 vs 12hn7a
  42. Anyone familiar with VAC PA 90C1?
  43. Help restore an RCP 413 tube tester
  44. voltage reg make heat sink live. Bad idea?
  45. Audio Innovations series 800 reactivation + some mods
  46. Using 2 rectifiers off 1 power supply
  47. Tube power supply
  48. Improving low bass of a Scott 299c
  49. 1939 Radioshack Catalog online...Anyone have a time machine?
  50. VCCS filament supply for 813
  51. digital volume control
  52. Philips AD3800AM and AD9710AM clones
  53. MTP6N60E replacement
  54. Upgrading output transformers
  55. Cascode RIAA
  56. need a manual for selectron model 40 tube tester??
  57. Volume swinging problem
  58. How to use the almost Group buy Diyaudio CCS circuit
  59. Big voltage swing tube recommendation please
  60. Morgan Jones KT88 PP
  61. Mystery Tube Amplifier -- Help?????
  62. tube tester how can i tell if have match pair?
  63. Photo flash caps for the power supply?
  64. Finding bias point in PP fixed bias
  65. 6V6 Push Pull
  66. Transformer Mounting Braces
  67. Rozenblit 6as7 otl questions
  68. Genesis pre-amplifier schematic wanted
  69. 6H30PI/6922 Preamp Circuit
  70. PFB line amp
  71. 2A3C Mono plate: Shuguang Or Sovtek?
  72. Any kit reccomendation would be helpful
  73. Cleaning tubes...
  74. Anyone recognise these tubes...
  75. big ol' 26lb. output transformer...
  76. ECC88 Help
  77. European Triode Festival ETF08: still some places vacant!
  78. Dynaco MK IV Mystery
  79. 6as7/6080 Se Otl
  80. 6GW8 substitute tube 6BM8?
  81. Choke question
  82. Screen driven output stage
  83. Peavey Delta Blues Reverb Frustration
  84. 2a3 parallel driven 6sn7 schem
  85. WMD or Big Freakin Power Supply
  86. DIY My tube tester
  87. Help! May have dropped 12sn7 in place of 6sn7
  88. Got a bucketload of tubes, need identification
  89. Help from Allen Wright SuperReg owner
  90. Moscode 600
  91. Signal caps to keep on hand
  92. pin-compatible EF86 alternative?
  93. Capless Parafeed (with apologies to SY)
  94. T Eaton Viking schematics?
  95. S5 K-16LS mods, tweaks?
  96. 5687 fully balanced line stage
  97. Subminiature sockets
  98. What Do I Have Here?
  99. Bad vacuum?
  100. Th. Lösch Phono Amp: Question about IC used & ECC808 to ECC83
  101. Balanced 24V Aikido question
  102. How to wire a 'Buck' transformer
  103. OT question - will it work?
  104. ID Unknown Tube
  105. Time delay start board for tube amps
  106. Hum reduction ideas (again)
  107. Utc Ls-33
  108. K-16ls
  109. Potential valve damping tweak
  110. Conversion Tube PA and Bass Tone
  111. Wanted. Simple EL34 Push Pull Design
  112. PCB advice
  113. Hybrid voltage quadrupler?
  114. my fu80 amp
  115. Pre-amp for BeoMaster
  116. Question re: chokes
  117. Inundated Electrolytics
  118. power transformer recommendation
  119. PS decoupling cap placement
  120. USSR Russian Caps. KBG-MN or K75-24?
  121. #10SE Tested project
  122. schematics help
  123. HF Decoupling Caps questions
  124. 1A7 Heptode (Pentagrid Converter) Audio Preamplifier
  125. Useful power transformer design thread on Analogue
  126. Understanding Simple SE design choices
  127. Fender Pro Amp
  128. Hewlet Packard transformer
  129. 6BG6 for KT66
  130. new learning
  131. TV-7D/U Tube setting --- 6550
  132. ecc40 LTP
  133. Latest incarnation of music angel kt88
  134. Tubelab SE oscillation?
  135. 6SL7 5E3 - together at last?
  136. AN Shinri schematic wanted
  137. Found a box of old toobs
  138. Choke input filter LF noise
  139. Aikido line stage - plus phono line stage
  140. Hook up wire?
  141. Irritating problem with soft start
  142. OTL with 6AN5
  143. Mono Blocs Completed...
  144. Magic Eye for solid state Tuner?
  145. a question about drive power
  146. converting BAL to UNBAL using tubes and without transformers
  147. Aikiado question
  148. Top cap tubes+ arc welder
  149. Small beginner amplifier and hello :)
  150. Blackburn MicroTech TechTube(TM) Valves update!
  151. Resistor setup for integrated amp & headphones?
  152. Brook 2A3 PP amp ID help
  153. heater voltage
  154. kobayashi 300B push-pull
  155. Triode strapping a tetrode...
  156. Any info on 3572 Half wave Rectier
  157. Question Conrad Johnson reg. psu?
  158. Another 300B SE
  159. 7-pin Low Rp tube
  160. S-5 K-16LS Kit arrived in Germany !!
  161. Transcendar RIP?
  162. 6N6P in an Aikido?
  163. Were can i bay a Telefunken 6ak5 ?
  164. SE 245 driverstage
  165. 12ax7 srpp dac output
  166. How this circuit works (Baby Huey type)
  167. New tubeamp
  168. Snubber caps
  169. Counterpoint sa220
  170. Resistor before tube rectifier
  171. TCJ Push-Pull calculator v2
  172. Heathkit AG-9A audio generator schematic !!!
  173. Sources for James Transformers
  174. High Voltage Soldering (IPC Standards?)
  175. Speakers for Flea Powered Amps <1.5W
  176. Opinions on Allen & Bradley Carbon Composite resistors
  177. wich tube is best for the yaqin cd buffer ?
  178. Mikael Abdellah's SE KT88 bass response + tightness
  179. How best to use the PSU xformer I have
  180. 6L6GC AB2 Amp
  181. Kofi Annan in: "I'd Like Me a Mic Pre!"
  182. Too much gain - help with changing driver tube.
  183. EL95 SE schematic wanted
  184. test settings hickok i177B for 5ar4/gz34
  185. Gibson Ga-20 rvt reverb problems
  186. good value (i.e. cheap) OPT in uk?
  187. Input xfmr, diff stage, CCS questions
  188. Theoretical OPT question
  189. input/driver stage for kt88/6550
  190. thyratron switching
  191. Making component choices (6V6/EL84 PP)
  192. Which socket for a 5Y3??
  193. using #47 in p-p
  194. 6463-12b4a srpp?
  195. Need some help identifying which tubes are suitable
  196. Tube Priceing
  197. edcor output transformer advice
  198. Non top-cap tubes for plasma tweeters
  199. Intermittent Static on ARC REF 3 Preamp
  200. Have you guys seen this yet?
  201. ECC88 heater overvoltage damage?
  202. Recommended designs
  203. Aikido Phono PCB Modifications
  204. Need Power supply advice for Andreas 845
  205. Phonodude question
  206. Power Supply for Aikido Phono Pre
  207. Completed New Combo Amplifier
  208. Want to Build my first Tube Amp
  209. single tube amp ~pspice problem
  210. Modding a tonebone to switch to pentode triode operation?Can this be done??
  211. Relyon KT88/EL34 SE issue, schem attached
  212. Search 35T Schematic
  213. Hickok 600A, shattered mercury rectifier...
  214. Pete Millett Low-Mu Triode Preamp
  215. First scope/buying oscilloscope probes
  216. thyratron rectifier
  217. Need help making some choices on what to build
  218. A2 curves and curvecaptor.
  219. damper diodes ....
  220. Different Rectifier Warmup Times
  221. stupid question of the day
  222. Fisher 400 Output Transformers
  223. Tube amp repair
  224. Hi-end 845 with only two stage
  225. PL519 Heaters in series blow fuse
  226. Looking for parts to tinker with
  227. KT88 Recommendations?
  228. Anyone Interested in Pete Millett Hybrid Amp PCB's?
  229. Mirror of Steve Bench's site
  230. Quick Question About RCA Input
  231. Built an amp kit!
  232. Holy Smoking Toroid Winder
  233. Group Buy for Experimenter's 9 and 7 pin Tube Socket PCBs
  234. why do tubes have a treble lost ???
  235. Low Frequency Mains Noise
  236. Help modifying circuit
  237. Ever heard sth like this?
  238. dual volume control
  239. Need DIY help in Los Angeles area with tube preamp
  240. 6c19p se otl
  241. pt
  242. "Killer" Screen Driven Push-Pull Amp Initial Queries
  243. fixed vs. cathode bias
  244. RH84 Push pull?
  245. Cheapfield project
  246. heater connection problem
  247. What to do with this PP OPT?
  248. Question about Bridging
  249. White Fuzzy furry growth..........TV-2C/U
  250. Tweaks for 845 Power amp

Content Relevant URLs by vBSEO 3.3.2