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

  1. oscillating PP EL84 amplifier
  2. 6H30P based cathode-follower schema kindly requested
  3. Cathode follower question
  4. Bunch of old parts, worth anything?
  5. 6922 vs. 6N1P Bass Response
  6. Behringer reaches a new high in tube "transparency"
  7. Input stage tube
  8. Using transformers as choke?
  9. Resistors
  10. melos gk1 preamps anybody?
  11. Looking for a thread...
  12. DG7-32 based oscillograph schematic needed
  13. Try!!! Ef37a + 6c33c
  14. qustion on tube grade wiring
  15. Balanced pre-amp attempt
  16. GRRR.. sanity check on PTx current please
  17. How do you measure ripple on the B+?
  18. Aikido + EL34 Integrated
  19. heater voltage: why ac, and not dc?
  20. Ideas for using one ECL82 in a preamp
  21. Question about 12AU7
  22. 6AU6, 6U8, 6CL6, plus UTC A-10 make Mic Pre?
  23. WIMA FKP1 1000V as coupling cap ??
  24. Ping amperex re: Hammond organs
  25. schematic needen variable power supply
  26. Distributed Load/Balanced Bridge Connection
  27. CCS, feedback and grid leak questions.
  28. Vdd
  29. Help with 6GW8/ECL86 tubes??
  30. Best amplifier (recomendations) for Fostex FE108ez?
  31. Quick valve construction question
  32. Poindexter's 6v6 PP amp
  33. need some help with Ohm's law-fast!
  34. hybrid rectifier question
  35. I really, really wish I hadn't done that...
  36. Quicksilver 8417 conversion
  37. Supratek
  38. remote OPT, stupid idea ?
  39. Autoformer output stage
  40. Remote Power Supply: A Stupid Idea?
  41. Rjm simple tube phono pre
  42. Voltage controlled filter with tubes ??
  43. Does this look right to you?
  44. PWM amplifier hooked onto a tube preamp
  45. Zenith Console Opt Question, Odd Secondary
  46. Marchand LN108 Tube Phono Preamp
  47. Anyone care to express an opinion on this output Transformer
  48. 6L6 Triode strapped amp suggestions
  49. 6F1 and 6P2 Equivalents
  50. in memoriam Fred N. AKA 807
  51. Perplexed by 5AR4 Tube Socket? Picture Included
  52. Push pull 300B and more than a few questions...
  53. First tube project.
  54. DHT learning
  55. how do i add adjustable bias on amp?
  56. Tube tester: Accurate Instruments Model 157
  57. "El Cheapo Valve Phono" using 6ER5=>12AT7WC?
  58. Design Questions
  59. SRPP + Gainclone
  60. dht p-p filament question
  61. Report - 2005 London HiFi Show
  62. Want to build hi - power amp
  63. Gibson Skylark Grouding Questions
  64. Can I mod this circuit to use 6922 tubes?
  65. tube preamp kit question (again?)
  66. 3f4 spice models needed
  67. Back to Back transformers to get +B of 200V ??
  68. New amp project-some ideas of my own and looking for input from others...
  69. Emphasising the transients, but making the mediocre listenable
  70. Looking For a PP 6Y6GA Design
  71. Industrial vs Commercial amps and OPT's
  72. ECC99 operating points?
  73. Preamp suggestions for a tube newbie
  74. very odd thing happening in my amp... help
  75. 47 Penthode in triode mode.
  76. Capacitor value
  77. PSE bias how?
  78. GM70 Power supply
  79. interstage convert to phase splitter
  80. EL84 SE advice'n'schematics needed
  81. world's heaviest 2A3 amp?
  82. How To Tell What Tubes To Keep
  83. PX4 Trauma
  84. An amplifier project I'm looking for...
  85. Your 100volt plus moment
  86. Dynaco rectifier replacement?
  87. SET on a budget
  88. PSU Design Learning Links
  89. Expensive Commercial Amps
  90. Tube modified CD player with TDA1543
  91. Types of polypropylene capacitor....
  92. Fluorescent lamp choke - use in tube amp?
  93. Tube Overdrive
  94. Mains Transformer for EL34PP
  95. Please review schematic
  96. Wire size for projects?
  97. super simple tube amp needed...
  98. Modifing A Fender Bassman Scheme
  99. Matlab-based triode modelling software
  100. 12AT7 Pre-amp schematic, where to find?
  101. Test settings for Hickok 539A for 183/483 tube?
  102. choke input ripple level?
  103. 120 Hz Buzz Unplugged
  104. 300B like 845
  105. Guitar amp picks up radio??
  106. DC filament ground and high voltage ground
  107. Roll CALL: How many guitar amp guys are here
  108. DIY Club remote volume help?
  109. Aesthetix Rhea and I/O diagrams?
  110. Electrolytic vs polyprop capacitors
  111. Cathode Bypass Cap questions
  112. rectification and xfmr stress
  113. Audio Research
  114. Anybody got Melos MA-111 Schematic?
  115. Problem locating power supply
  116. Timer Relay
  117. Help With Jukebox Amp
  118. Help the Idiot: Simple, Great-Sounding Integrated Amp Designs
  119. Help Please Guitar Project Mess
  120. Help - tube driver for spring reverb...
  121. 6W6 as a driver
  122. Choosing the best EL34 pp opt
  123. Your opinion, please
  124. Tube surround sound
  125. Could you guys check this cascode article for me
  126. what would happen if...
  127. A Heretical Unity Gain Line Stage part III
  128. Which ECC83 tube and caps question
  129. Paralle Push Pull Simulclass
  130. organ amp question
  131. Stereo build- Mikael Abdellah's KT88 SE amp
  132. Audio Research AC21 cross over
  133. First DIY amp pics-as promised!
  134. emission-lab info
  135. Simple EL84 PP design needed
  136. 6C33 Circlotron
  137. Valves glow fierce
  138. Kirung's GM70 SE-Amps from Korea
  139. Digital Pots
  140. Troubleshooting First Tube Project
  141. Millett Low mu Preamp help
  142. thoughts about a 'universal' preamp
  143. Morgan Jones's Bevois Valley amp...
  144. Aikido line stage results? share yours
  145. Fender power transformer help
  146. HELP with breadboard layout!!!
  147. balanced line stage schematic needed
  148. Its Alive!! First Diy Amp Works!!
  149. Duncan Munro Psud primer please?
  150. Preamp volume control??
  151. Welborne 300b DRD plate current
  152. Active compensation...
  153. Calculating expected output power.
  154. Hybrid X line amp
  155. any way to fix a end cap on a 807 power tube
  156. power tube question
  157. MJ head-amp- how does it sound?
  158. Quick Aikido question
  159. What kind of amp?
  160. Problem with cathode resistor
  161. 2A3 DRD schematic wanted
  162. reduce before amplifying?
  163. 6AS7-G RCA application considerations
  164. Matisse Fantasy waveform output test
  165. El84/6bq5/ecc83 + Ef86 = Dc Pp
  166. Searching for simple circuit
  167. McIntosh MC60 Screens
  168. Improve this Pilot 240 (EL84/6BQ5)
  169. Eimac 35TG
  170. power supply issues
  171. Which Amperex ECC88 is the best?
  172. laney PA amp questions
  173. Grid battery bias on phono....
  174. EL34 identification
  175. UL vs SE
  176. 6sn7 operating points
  177. HELP! B+ voltage problem/burning power resistor
  178. are these tubes any good ?????
  179. Free Lunch/Monkey/DRD inspired 2A3
  180. E280F Triode mode operating point
  181. EL84 Guitar amp questions (long, sorry)
  182. 2nd Aikido PCB and PSU groupbuy
  183. Newbie question...
  184. Help in getting more gain out of 300B SE
  185. ECC808 what to do
  186. Microphonics When Hot, Raytheon CK5842
  187. MOSCODE hybrid DIY
  188. transformer question
  189. help, my amp humz
  190. Le tube preamp
  191. Ideal operating point of 6sj7
  192. Anyone tried the Hammond 1642SE in a BIG SE amp?
  193. MOSFET current source as triode load
  194. C-core transformers
  195. choke and choke
  196. High Voltage Power Supply Caps
  197. suggestions for 300B tubes
  198. Differential input stage
  199. rca conversion
  200. heating
  201. Russian 6N8S/1578
  202. DIY tube amp squeals when turned up
  203. ECL80-Amp from Andreas Kirschner
  204. HSS preamp, anyone care to comment
  205. help me design an input stage for 6b4G PP
  206. Instrument/Microphone Tube Pre-amp
  207. first-time tube DIY project...phono preamp
  208. A question regarding schematics
  209. My first creation
  210. Your opinion on this VCCS heater supply please.
  211. Looking for ORIGINAL GE 6L6GC
  212. Need help - O/T trannies for future project
  213. ECL82 (6BM8) PP Stereo
  214. first DIY amp start up-yowza HELP!
  215. Ronette Info
  216. GE 5687 (5 stars)
  217. vox ac4
  218. Help: Toroid choke for a preamp
  219. Who makes a 1962 Bassman head chassis?
  220. does meter degrade sound ?
  221. Eye Tube (1629) controller help
  222. Scott 99B & 99C Public Auction Find
  223. tube id book
  224. radio , tv station and radar stations still use the best single end class a amplifier
  225. Stupid question?
  226. looking for ideas on a small tube amp stand?
  227. Cascode gain stage info?????
  228. hi gain preamp
  229. Tube flashing
  230. Bogen tube amp with variable Damping Factor
  231. Question re Allen Wright PP-1cs
  232. What is a good Tube tester to get?
  233. High Gain Preamp
  234. SACThailand
  235. You know you're a tube junky when...
  236. 6AU6 to do EF86 duty?
  237. 6Н28Б-В datasheet?
  238. Is single ended Class A better than push-pull?
  239. Is 845 better than 211 tube amplifier?
  240. Cool Fireworks (tubes are tough!)
  241. Big Big hum ???
  242. 5687 filament heater question
  243. Anyone know agood MOSFET drive for RCA 811A Tube?
  244. Who is into musical instrument tube amplification?
  245. buffer stage ECC88 or ECC83?
  246. EL34 Integrated
  247. Solid state HT regulator??
  248. Tubes driving dipole mids
  249. How do I turn an high current signal into a line level signal??
  250. Peer review, UL question

Content Relevant URLs by vBSEO 3.3.2