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. Attenuator for passive pre (LEAK ST 20)
  2. Help ID tubes Plz
  3. Data sheet and load line question
  4. Trouble with Silver to Black face twin mod.
  5. Grommes S35 booster amp output?
  6. dc filament heater - high impedance const. voltage
  7. Schematic for Modwright SWL 9.0se Preamp
  8. GZ37 substitutes
  9. output attenuation
  10. My humming home made tube amp
  11. Shared Cathodes 300b
  12. Bogen CHB-35 for Music...
  13. correctly connecting PT for 110/220 volts
  14. voltage divider
  15. "Bypass caps" and their effect on perceived sound
  16. Repair of Cayin HA-2 Tube Headphone Amp
  17. Best Drive for EL34
  18. Needing Schematic for Grommes LJ7 please.
  19. 6550C v. KT88
  20. ECC81 MU-Follower consumption
  21. Locating hum source
  22. c3g self oscillation problem - a newbie needs help!
  23. Voice of music console help
  24. One tube radio
  25. Triodes with better "look&feel"
  26. HV Supply
  27. Will this arrangement impact the input impedence of the cathode follower?
  28. Measuring preamp output impedance
  29. Capacitor from 120VAC to ground
  30. I have power but no sound???
  31. Using a function generator with a tube amp?
  32. What resistors to use on KT88s tubes?
  33. Opinions on Raysonic sp-200 + Raysonic 168 CD
  34. Lab power supply for testing tubes
  35. Could really use some help here!
  36. Help~ GU50 ?
  37. Some Power Supply Help
  38. newbies beware of lampizator srpp pdf
  39. Headphone output
  40. Has anyone played around with this as an amp front end?
  41. Help for Dynavox VR-70E
  42. Heathkit TT-1 (testing a 199, 99 tube)
  43. Tube And Transformer I/V Converter For Differential Current DAC
  44. Volume increases as amp warms up
  45. New 6V6 Build - Suggestions Needed
  46. Tubes Numbers
  47. VTL
  48. Visit to KR audio Prague 20120921
  49. Where did he posted it?
  50. Problems with PT325.2i
  51. What phono preamp with Dynaco MKIII
  52. opinions on supporting a past sale/trade deal
  53. Series connection of regulator tubes
  54. Preamp buzzes when volume is at zero?
  55. Hrrrrmphhhff. PSU design error and how to cope with it
  56. 300B fixed bias specs
  57. Battery filament for 4P1L
  58. Need pro help with this tube amp.
  59. Guitar Amps Output Transformer specs
  60. Need help with UTC transformer
  61. Very interesting 300b design
  62. How to understand the power output in this case?
  63. K12G Help
  64. all dht se PX4
  65. multiple output transformers per channel
  66. What would you change in this schematic? (PP amp)
  67. Anyone know where to get this type of breadboard?
  68. moscode 600 tube recommendations
  69. Should I use two separate OPTs for parallel output tubes?
  70. custom Tube chassis vendor
  71. VLS631 Thermal Delay
  72. 6au6 preamp stage
  73. Recognize this tubes...
  74. need help for my new amp: 6G6G driver & 807 SE
  75. Anyone heard of radiometal for transformer core?
  76. BCF-2
  77. Glowing Plates of Doom
  78. Modding Aikido to non-Aikido such as SRPP?
  79. DN2540 plate load.
  80. Help! Did my power cable blow his tubes?
  81. 211 amp SRPP driver
  82. Tubelab SE problem
  83. tube to replace opamps in cd player
  84. Jolida 302b started to crack/pop once a minute
  85. why it doesn't work - 300B SE power amp
  86. Trio KW-70 schematic also known as WX-400 under kenwood name
  87. New DC to AC to high voltage AC idea?
  88. LED bias for 6N1P driver
  89. DIY tube amp general inquiry
  90. 6as7 Aikido headphone amplifier
  91. Cold tubes in warm amp = smoke?
  92. Keroes: Direct-Coupled amplifier
  93. Tube ID help please.
  94. exactly HOW does a tube amp work? or a vacuum tube?
  95. David Berning's zh-230 - whats going on here?
  96. EICO HF86 scratch build question please
  97. what to do with a 12W 600ohm to 4/8 ohm output transformer?
  98. Telewatt VS71M
  99. Yamamoto 09S 300B SE Amp Problem
  100. Marantz-9
  101. 6V6 amp question
  102. Wood chassis
  103. My first project SE(T) into high end audio.
  104. Supermalloy for the Power transformer?
  105. Can I build a screen reg. with IXYS 10M45?
  106. Modified DynacoMkIV
  107. Refurbising Conrad Johnson Premier One
  108. Would using a 16ohm speaker damage my SE output transformers?
  109. Grommes/PE S-35 questions
  110. Concertina phase inverter with LED bias - is this completely wrong?
  111. Parafeed turn-on delay
  112. I'm looking for 6an8 (as V1) schematics
  113. New Project - EL84 PP and preamp - suggestions welcome
  114. The sound of modern transformers compared with vintage gear
  115. Determining the core cross sectional area, Afe, for SE OPT
  116. HT power supply high?
  117. under-run push pull
  118. 12B4 Linestage Woes
  119. Transcendent Sound Mini-Beast
  120. A Question About Positive Feedback
  121. Help with opera consonance M100plus
  122. Just received 2x PT Choke OT. best implementation ?
  123. Just received 2x PT Choke OT. best implementation ?
  124. Mystery Valve ID
  125. Oddball OT with extra secondary winding
  126. Help with Multi Section Can Cap replacement
  127. 600V bench variable supply to test transmitting valves
  128. Heater-cathode voltage spec interpretation
  129. Tell me why this wont work.
  130. headphone amp for Senns HD600
  131. Transformer orientation and suggestions.
  132. 12AU7 stereo SE mini-amp build!
  133. allen type 20a schematic
  134. 2010 lemon year for EH 6922 tubes
  135. Chinese GU50 PP
  136. Gain, Vpp and attenuation at each stage
  137. 6n14p headphone amp
  138. Heater Lifter
  139. KT88 & 6550 Pentode power output?
  140. Biasing Improved Williamson
  141. Vox V941 active FX Loop - I'm looking for schematics
  142. Lowering the Volume Control on Tube Amps
  143. Got the Hum out!! Thanks All
  144. How hot KT88 get? Anybody take a reading?
  145. Broskie Unbalancer
  146. Phase splitting transformer design
  147. Red plate KT88
  148. 6N16B preamp
  149. Eimac 450th nos
  150. how much clearance above tubes for KT88 enclosure
  151. Cathode preheating???
  152. RIAA Question - Power
  153. Linearity of Red RCA 5692
  154. What gauge enclosure for KT88 AMP?
  155. Output Transformer Issue???
  156. Maggie 8802 placement issue
  157. Can you recommend a tube tester?
  158. 6550 tube protection socket
  159. PT laminations are usable as OT laminations ?
  160. Are These Authentic Russian Military 1578 Vacuum Tubes?
  161. Amp ID Please
  162. Help for Main Transformer Spec for CCDA
  163. Switching SE and balanced inputs/outputs
  164. kt88 PP rectifier.
  165. How much Blue glow is ok?
  166. Recommendations on How To mono a pre amplifier?
  167. 6H6pi curves available?
  168. 1p24b
  169. help, Built from scratch Kalamazoo 2 noise
  170. 5CZ5/5BQ7A single ended amp
  171. Hopefully a simple question.
  172. 211 tube recommendations
  173. Need HELP with TUBE IMP
  174. Another unknown tube
  175. Triode Bias 101
  176. Bogen MO-200A transplant /conversion
  177. 5U4 o bridge rectifier
  178. Choosing the right transformer
  179. V-Cap Help
  180. Older tubes sound better
  181. 6J7 preamp
  182. Menygue mini/music angel amp
  183. Driving a Behringer INuke Nu1000
  184. cathode follower ecc88 on 60volt
  185. Docs for Heathkit AA-23?
  186. 45 tube amp schematic
  187. Old TO-R s15u, Should i fix it?
  188. Tube ID
  189. VTL driver tube question
  190. Fun with junk EL84 SE
  191. Enclosure ideas
  192. Burn in procedure for NOS necessary?
  193. Strange Lorenz ECC81 12AT7
  194. Amplifier first start up; Plays tone of signal generator with no speakers!
  195. Reports of the death of Audiophool have been greatly exaggerated
  196. help me identify some vintage tubes // need suggestions for possible applications!
  197. Lowering cost of audio output transformer
  198. Source for transformers in Europe
  199. morgan Jones HT caps & Anode Loads
  200. Tuning Negative feedback
  201. Hickok reference 6L6 for calibration..
  202. SET-NO FEEDBACK amplifier performance
  203. Stereo class A 6+6W - 2x 6L6G 1 x 6N2P
  204. Console Amplifier Pull:Voltages over Spec
  205. Help! My EL34B based amp arced at full volume.
  206. MUZAK 50's tube amp
  207. Tube break-in?
  208. Custom power tranny specs recommendations for 300B pse monoblocs
  209. mosfet source follower output stage.
  210. Winter upgrade project - new heating unit
  211. 6KM8 amp
  212. Power and output transformers to ground.
  213. Help with this schematic? B+? B++?
  214. What to do with this old amp? suggestions please.
  215. DIY CAT SL1 preamp
  216. Phase inverter, your comments welcomed!
  217. Basic Bias Question for PP Amp
  218. Oddwatt 5751/6550
  219. Please help me to identify Telefunken PCC ...
  220. Modification of 300B SE Amplifier
  221. 300B Tube and Amp Questions
  222. ST70 "Imposter"
  223. cathode follower question
  224. marconi tubes....can someone idntify these
  225. DeathTrap400 : : A Pretty Damn Good 300B Amp
  226. SOS: First Build, Lots of Hum
  227. 1959 Silvertone Syntronic Can Capacitor question
  228. KR Audio Marconi R valve amp?
  229. Distortion
  230. Tung-Sol 6098/6AR6 Substitution
  231. Dropout in RTP3 phono stage
  232. Audio Research EC-3 modification
  233. 300b all-DHT SET
  234. My first tube project !
  235. Trouble with homebuilt amp
  236. Music angel el34b problem
  237. Elecrolytic capacitor reforming
  238. The end of tubes?
  239. Two stages EL34 power amplifier
  240. 7199 replacement in AMPEX 6973
  241. IT coupled tube-SS hybrid amp suggestion- needs development
  242. Original Cary CAD-300se upgrades?
  243. Convert Integrated Tube Preamp to an amplifier
  244. McCurdy AM405 Schematics
  245. Looking for Neumann N149 power supply schematic
  246. B&K model 747 tube tester for EL34
  247. Behringer DEQ2496 for testing amplifiers and preamps frequency response ???
  248. I need datasheet of 8753 tube, help me!
  249. New 6L6GC Project. DC -> LTP
  250. EL84 in UL

Content Relevant URLs by vBSEO 3.3.2