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. Wire size for projects?
  2. super simple tube amp needed...
  3. Modifing A Fender Bassman Scheme
  4. Matlab-based triode modelling software
  5. 12AT7 Pre-amp schematic, where to find?
  6. Test settings for Hickok 539A for 183/483 tube?
  7. choke input ripple level?
  8. 120 Hz Buzz Unplugged
  9. 300B like 845
  10. Guitar amp picks up radio??
  11. DC filament ground and high voltage ground
  12. Roll CALL: How many guitar amp guys are here
  13. DIY Club remote volume help?
  14. Aesthetix Rhea and I/O diagrams?
  15. Electrolytic vs polyprop capacitors
  16. Cathode Bypass Cap questions
  17. rectification and xfmr stress
  18. Audio Research
  19. Anybody got Melos MA-111 Schematic?
  20. Problem locating power supply
  21. Timer Relay
  22. Help With Jukebox Amp
  23. Help the Idiot: Simple, Great-Sounding Integrated Amp Designs
  24. Help Please Guitar Project Mess
  25. Help - tube driver for spring reverb...
  26. 6W6 as a driver
  27. Choosing the best EL34 pp opt
  28. Your opinion, please
  29. Tube surround sound
  30. Could you guys check this cascode article for me
  31. what would happen if...
  32. A Heretical Unity Gain Line Stage part III
  33. Which ECC83 tube and caps question
  34. Paralle Push Pull Simulclass
  35. organ amp question
  36. Stereo build- Mikael Abdellah's KT88 SE amp
  37. Audio Research AC21 cross over
  38. First DIY amp pics-as promised!
  39. emission-lab info
  40. Simple EL84 PP design needed
  41. 6C33 Circlotron
  42. Valves glow fierce
  43. Kirung's GM70 SE-Amps from Korea
  44. Digital Pots
  45. Troubleshooting First Tube Project
  46. Millett Low mu Preamp help
  47. thoughts about a 'universal' preamp
  48. Morgan Jones's Bevois Valley amp...
  49. Aikido line stage results? share yours
  50. Fender power transformer help
  51. HELP with breadboard layout!!!
  52. balanced line stage schematic needed
  53. Its Alive!! First Diy Amp Works!!
  54. Duncan Munro Psud primer please?
  55. Preamp volume control??
  56. Welborne 300b DRD plate current
  57. Active compensation...
  58. Calculating expected output power.
  59. Hybrid X line amp
  60. any way to fix a end cap on a 807 power tube
  61. power tube question
  62. MJ head-amp- how does it sound?
  63. Quick Aikido question
  64. What kind of amp?
  65. Problem with cathode resistor
  66. 2A3 DRD schematic wanted
  67. reduce before amplifying?
  68. 6AS7-G RCA application considerations
  69. Matisse Fantasy waveform output test
  70. El84/6bq5/ecc83 + Ef86 = Dc Pp
  71. Searching for simple circuit
  72. McIntosh MC60 Screens
  73. Improve this Pilot 240 (EL84/6BQ5)
  74. Eimac 35TG
  75. power supply issues
  76. Which Amperex ECC88 is the best?
  77. laney PA amp questions
  78. Grid battery bias on phono....
  79. EL34 identification
  80. UL vs SE
  81. 6sn7 operating points
  82. HELP! B+ voltage problem/burning power resistor
  83. are these tubes any good ?????
  84. Free Lunch/Monkey/DRD inspired 2A3
  85. E280F Triode mode operating point
  86. EL84 Guitar amp questions (long, sorry)
  87. 2nd Aikido PCB and PSU groupbuy
  88. Newbie question...
  89. Help in getting more gain out of 300B SE
  90. ECC808 what to do
  91. Microphonics When Hot, Raytheon CK5842
  92. MOSCODE hybrid DIY
  93. transformer question
  94. help, my amp humz
  95. Le tube preamp
  96. Ideal operating point of 6sj7
  97. Convert a non-valve amp to a Valve (tube) Amp
  98. Anyone tried the Hammond 1642SE in a BIG SE amp?
  99. MOSFET current source as triode load
  100. C-core transformers
  101. choke and choke
  102. High Voltage Power Supply Caps
  103. suggestions for 300B tubes
  104. Differential input stage
  105. rca conversion
  106. heating
  107. Russian 6N8S/1578
  108. DIY tube amp squeals when turned up
  109. ECL80-Amp from Andreas Kirschner
  110. HSS preamp, anyone care to comment
  111. help me design an input stage for 6b4G PP
  112. Instrument/Microphone Tube Pre-amp
  113. first-time tube DIY project...phono preamp
  114. A question regarding schematics
  115. My first creation
  116. Your opinion on this VCCS heater supply please.
  117. Looking for ORIGINAL GE 6L6GC
  118. Need help - O/T trannies for future project
  119. ECL82 (6BM8) PP Stereo
  120. first DIY amp start up-yowza HELP!
  121. Ronette Info
  122. GE 5687 (5 stars)
  123. vox ac4
  124. Help: Toroid choke for a preamp
  125. Who makes a 1962 Bassman head chassis?
  126. does meter degrade sound ?
  127. Eye Tube (1629) controller help
  128. Scott 99B & 99C Public Auction Find
  129. tube id book
  130. radio , tv station and radar stations still use the best single end class a amplifier
  131. Stupid question?
  132. looking for ideas on a small tube amp stand?
  133. Cascode gain stage info?????
  134. hi gain preamp
  135. Tube flashing
  136. Bogen tube amp with variable Damping Factor
  137. Question re Allen Wright PP-1cs
  138. What is a good Tube tester to get?
  139. High Gain Preamp
  140. SACThailand
  141. You know you're a tube junky when...
  142. 6AU6 to do EF86 duty?
  143. 6Н28Б-В datasheet?
  144. Is single ended Class A better than push-pull?
  145. Is 845 better than 211 tube amplifier?
  146. Cool Fireworks (tubes are tough!)
  147. Big Big hum ???
  148. 5687 filament heater question
  149. Anyone know agood MOSFET drive for RCA 811A Tube?
  150. Who is into musical instrument tube amplification?
  151. buffer stage ECC88 or ECC83?
  152. EL34 Integrated
  153. Solid state HT regulator??
  154. Tubes driving dipole mids
  155. How do I turn an high current signal into a line level signal??
  156. Peer review, UL question
  157. Grundig TK60 - Where is the Line Out ?
  158. 12AX7, EL34 or 6L6 design wanted
  159. RCA to Speakers?
  160. Morgan Jones - Valve books
  161. Any one tried to use subminiature for input tubes?
  162. Tube data for current manufacturers?
  163. Pentode to Triode Switch
  164. fried Heatkit IP-17 power supply
  165. Suggestions for Tube Amplifier
  166. SMPS for 300B heater ?
  167. What does this mean?
  168. heater/cathode query
  169. Bottlehead S.E.X Amp
  170. Old Meets New
  171. 6336-SE modification
  172. 6as7 pre-amp questions.
  173. Help in calculating NFB loop.
  174. ECL86 - quick and dirty
  175. Help! Q? about Ohm load in '59 Bassman RI
  176. preamp tubes change
  177. Parallel PP ECL86
  178. Anyone build a Minimal Reactance PSU?
  179. Transformer hook-up question to 115V AC line
  180. Langevin Schematic Archive
  181. PPP EL84 Amp
  182. Interesting comparison between NOS RCA 12ax7, Chinese 12ax7a
  183. Aikido: Width control
  184. Shielded Input Wire
  185. choke
  186. Multiple Inputs in One Shielded Cable?
  187. Presence control on a SE ?
  188. Question : pentode ccs schematic ?
  189. right capacitor value?
  190. Anybody knows this tube--WE 430C
  191. Transformer substitution help
  192. CFB Issues
  193. Please Suggest: Old Tube Usages
  194. Very powerful push/pull circuit
  195. Project choice for KT88
  196. Tamura F-475 in Parafeed?
  197. Kofi Annan in: "Push and Pull with Me"
  198. Schmitt dephaser
  199. Anyone using Chelmer Valves?
  200. SET w/ 300B Ultrapath + Parafeed Typologies
  201. a question about local feedback
  202. about input transformer
  203. Power transformer selection madness
  204. EF91 Line Stage questions
  205. Sourcing parts for Dynaco PAS rebuild
  206. HH Scott 223 monoblock schematics
  207. info needed on the 7c6 tube
  208. A final question on grounding(yeah right!)
  209. Schematics and Manuals Site Found
  210. Sprague/Cap Color Codes ?
  211. saba console radio working?
  212. Feedback and mu-followers
  213. Hundreds of 6AL5s
  214. Orange/Red Spot on The Anode of Sovtek 6L6GC
  215. Best way to isolate non-isolated RCAs?
  216. Power Resistor Smoking on HF-81
  217. Audio Innovations L-2
  218. first tube project
  219. And now a question about power switch...
  220. 2E24 ultralinear
  221. tube pin numbers
  222. Will This possibly work?
  223. What is the right current for a 300B at 400V and -80V grid bias?
  224. Simple Cap-Coupled CF Advise Needed
  225. tube amp layout reality check
  226. plitron
  227. How long does a 7199 last?
  228. Modding Tube Mixer Into DAW Front End
  229. CAE Cascode Diffamp Front End
  230. recommended resistor wattage
  231. 6.3V Rectifier Tube Lit by 5V
  232. Precision Electronics Amp w/ 6GT5's, Convert to 6L6's?
  233. WE121A, Please critique me
  234. Grommes / Western Electric G5M Tube Mixer Mods
  235. schemes needed
  236. PP to PPP
  237. aikido voltage swing
  238. voltage drop across a CCS...
  239. bogen db20 Schematic
  240. Mullards branded as Telefunkens???
  241. Pentodes; plate resistance; damping...
  242. PP amp has become SE?
  243. anyone mod a NYAL Moscode superIt?
  244. update to phillips sepp otl?
  245. DC filament supply LC or CL
  246. No Bass Control
  247. Unison Research Simply2 or s2schematics
  248. Border Patrol Power Supply
  249. Any leads on repairing a vintage Alamo Capri tube amp? >>
  250. nanocrystalline amorphous OPT

Content Relevant URLs by vBSEO 3.3.2