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. Could check this pentode-mu stage thingy for me (disclaimer* it is for a gutar amp)
  2. ASC Polypropylene And Oil Capacitors
  3. pots... log or linear?
  4. Cracking sound through speakers.
  5. EL84-PP - Why just 5W?
  6. Brook12a schematics...
  7. LongTailedPair gain -> how to calculate?
  8. Wiring secondaries of two power trafo's in parallel?
  9. RIAA "Tube Simulations"
  10. Has anyone built this 'Svetlana Six Pack' ?
  11. updated pics of tube project
  12. help 12FV7 datasheet
  13. Why does my oversized preamp trafo gets much too hot?!?!?
  14. 6sn7 pre
  15. 12AY7/6SN7 preamp PSU check
  16. CT design trans application
  17. Shindo schematics?
  18. Octal Hagerman Cornet Experiences
  19. My first (guitar) amplifier
  20. Zenith AM/FM C835 tube Radio schematic
  21. Oh man, my telefunken stoops...
  22. 42 single ended
  23. EL34 Feedback circuit
  24. Spice model for EL86/6CW5
  25. Ditching some High Voltage
  26. Newbie want to build simple tube preamp&psu!need help!
  27. Phono Pre-Design Input
  28. HV Direct Drive tube amp.
  29. A question about Cathodyne/split load/concertina PI's
  30. Kofi Annan in: "Hummin' Trafo Blues"
  31. Rattling Tube
  32. Berning output buffer
  33. Tube PSU Question
  34. JoLida Envoy PreAmp or DIY?
  35. Looking for Audio Note P1SE schematics.
  36. Which SE-ECL82 amp to build?
  37. PSU Help
  38. Help for stabilisator Data
  39. How much ripple on B+ is allowed?
  40. Typical 2A3 hum?
  41. PV10 PS transformer
  42. 300B Filament Voltage Range
  43. Mullard EL34-Authenticity Verification
  44. Fading or Frying Fender Clone Issue
  45. Philips V30M amplifier
  46. PWM power supply???
  47. Regulated psu for tube preamp
  48. About to start a new project: PP 6CK4s...
  49. Komuro DC 300B crct w/ 50dht?
  50. Anyone out there try a SEPP OTL guitar amp??
  51. DIY speaker attenuator?
  52. So what are some good 7-pin, hi mu, low noise/microphonic tubes??
  53. Audio meet pics from this past weekend
  54. Audio Note M7 Line Preamp??
  55. PP 7591 amp
  56. Tube op amps
  57. Please tell me how to upgrade Music Angel KT88 amplifier?
  58. Do I want a fan?
  59. 3rd Aikido?
  60. More Questions about A.Wrights PP1C
  61. 7591s flashing on start-up?
  62. first amp build... wiring questions
  63. pentode aikido driver for 300b
  64. Question about single NOS triodes in cascode for fun
  65. oscillating PP EL84 amplifier
  66. 6H30P based cathode-follower schema kindly requested
  67. Cathode follower question
  68. Bunch of old parts, worth anything?
  69. 6922 vs. 6N1P Bass Response
  70. Behringer reaches a new high in tube "transparency"
  71. Input stage tube
  72. Using transformers as choke?
  73. Resistors
  74. melos gk1 preamps anybody?
  75. Looking for a thread...
  76. DG7-32 based oscillograph schematic needed
  77. Try!!! Ef37a + 6c33c
  78. qustion on tube grade wiring
  79. Balanced pre-amp attempt
  80. GRRR.. sanity check on PTx current please
  81. How do you measure ripple on the B+?
  82. Aikido + EL34 Integrated
  83. heater voltage: why ac, and not dc?
  84. Ideas for using one ECL82 in a preamp
  85. Question about 12AU7
  86. 6AU6, 6U8, 6CL6, plus UTC A-10 make Mic Pre?
  87. WIMA FKP1 1000V as coupling cap ??
  88. Ping amperex re: Hammond organs
  89. schematic needen variable power supply
  90. Distributed Load/Balanced Bridge Connection
  91. CCS, feedback and grid leak questions.
  92. Vdd
  93. Help with 6GW8/ECL86 tubes??
  94. Best amplifier (recomendations) for Fostex FE108ez?
  95. Quick valve construction question
  96. Poindexter's 6v6 PP amp
  97. need some help with Ohm's law-fast!
  98. hybrid rectifier question
  99. I really, really wish I hadn't done that...
  100. Quicksilver 8417 conversion
  101. Supratek
  102. remote OPT, stupid idea ?
  103. Autoformer output stage
  104. Remote Power Supply: A Stupid Idea?
  105. Rjm simple tube phono pre
  106. Voltage controlled filter with tubes ??
  107. Does this look right to you?
  108. PWM amplifier hooked onto a tube preamp
  109. Zenith Console Opt Question, Odd Secondary
  110. Marchand LN108 Tube Phono Preamp
  111. Anyone care to express an opinion on this output Transformer
  112. 6L6 Triode strapped amp suggestions
  113. 6F1 and 6P2 Equivalents
  114. in memoriam Fred N. AKA 807
  115. Perplexed by 5AR4 Tube Socket? Picture Included
  116. Push pull 300B and more than a few questions...
  117. First tube project.
  118. DHT learning
  119. how do i add adjustable bias on amp?
  120. Tube tester: Accurate Instruments Model 157
  121. "El Cheapo Valve Phono" using 6ER5=>12AT7WC?
  122. Design Questions
  123. SRPP + Gainclone
  124. dht p-p filament question
  125. Report - 2005 London HiFi Show
  126. Want to build hi - power amp
  127. Gibson Skylark Grouding Questions
  128. Can I mod this circuit to use 6922 tubes?
  129. tube preamp kit question (again?)
  130. 3f4 spice models needed
  131. Back to Back transformers to get +B of 200V ??
  132. New amp project-some ideas of my own and looking for input from others...
  133. Emphasising the transients, but making the mediocre listenable
  134. Looking For a PP 6Y6GA Design
  135. Industrial vs Commercial amps and OPT's
  136. ECC99 operating points?
  137. Preamp suggestions for a tube newbie
  138. very odd thing happening in my amp... help
  139. 47 Penthode in triode mode.
  140. Capacitor value
  141. PSE bias how?
  142. GM70 Power supply
  143. interstage convert to phase splitter
  144. EL84 SE advice'n'schematics needed
  145. world's heaviest 2A3 amp?
  146. How To Tell What Tubes To Keep
  147. PX4 Trauma
  148. An amplifier project I'm looking for...
  149. Your 100volt plus moment
  150. Dynaco rectifier replacement?
  151. SET on a budget
  152. PSU Design Learning Links
  153. Expensive Commercial Amps
  154. Tube modified CD player with TDA1543
  155. Types of polypropylene capacitor....
  156. Fluorescent lamp choke - use in tube amp?
  157. Tube Overdrive
  158. Mains Transformer for EL34PP
  159. Please review schematic
  160. Wire size for projects?
  161. super simple tube amp needed...
  162. Modifing A Fender Bassman Scheme
  163. Matlab-based triode modelling software
  164. 12AT7 Pre-amp schematic, where to find?
  165. Test settings for Hickok 539A for 183/483 tube?
  166. choke input ripple level?
  167. 120 Hz Buzz Unplugged
  168. 300B like 845
  169. Guitar amp picks up radio??
  170. DC filament ground and high voltage ground
  171. Roll CALL: How many guitar amp guys are here
  172. DIY Club remote volume help?
  173. Aesthetix Rhea and I/O diagrams?
  174. Electrolytic vs polyprop capacitors
  175. Cathode Bypass Cap questions
  176. rectification and xfmr stress
  177. Audio Research
  178. Anybody got Melos MA-111 Schematic?
  179. Problem locating power supply
  180. Timer Relay
  181. Help With Jukebox Amp
  182. Help the Idiot: Simple, Great-Sounding Integrated Amp Designs
  183. Help Please Guitar Project Mess
  184. Help - tube driver for spring reverb...
  185. 6W6 as a driver
  186. Choosing the best EL34 pp opt
  187. Your opinion, please
  188. Tube surround sound
  189. Could you guys check this cascode article for me
  190. what would happen if...
  191. A Heretical Unity Gain Line Stage part III
  192. Which ECC83 tube and caps question
  193. Paralle Push Pull Simulclass
  194. organ amp question
  195. Stereo build- Mikael Abdellah's KT88 SE amp
  196. Audio Research AC21 cross over
  197. First DIY amp pics-as promised!
  198. emission-lab info
  199. Simple EL84 PP design needed
  200. 6C33 Circlotron
  201. Valves glow fierce
  202. Kirung's GM70 SE-Amps from Korea
  203. Digital Pots
  204. Troubleshooting First Tube Project
  205. Millett Low mu Preamp help
  206. thoughts about a 'universal' preamp
  207. Morgan Jones's Bevois Valley amp...
  208. Aikido line stage results? share yours
  209. Fender power transformer help
  210. HELP with breadboard layout!!!
  211. balanced line stage schematic needed
  212. Its Alive!! First Diy Amp Works!!
  213. Duncan Munro Psud primer please?
  214. Preamp volume control??
  215. Welborne 300b DRD plate current
  216. Active compensation...
  217. Calculating expected output power.
  218. Hybrid X line amp
  219. any way to fix a end cap on a 807 power tube
  220. power tube question
  221. MJ head-amp- how does it sound?
  222. Quick Aikido question
  223. What kind of amp?
  224. Problem with cathode resistor
  225. 2A3 DRD schematic wanted
  226. reduce before amplifying?
  227. 6AS7-G RCA application considerations
  228. Matisse Fantasy waveform output test
  229. El84/6bq5/ecc83 + Ef86 = Dc Pp
  230. Searching for simple circuit
  231. McIntosh MC60 Screens
  232. Improve this Pilot 240 (EL84/6BQ5)
  233. Eimac 35TG
  234. power supply issues
  235. Which Amperex ECC88 is the best?
  236. laney PA amp questions
  237. Grid battery bias on phono....
  238. EL34 identification
  239. UL vs SE
  240. 6sn7 operating points
  241. HELP! B+ voltage problem/burning power resistor
  242. are these tubes any good ?????
  243. Free Lunch/Monkey/DRD inspired 2A3
  244. E280F Triode mode operating point
  245. EL84 Guitar amp questions (long, sorry)
  246. 2nd Aikido PCB and PSU groupbuy
  247. Newbie question...
  248. Help in getting more gain out of 300B SE
  249. ECC808 what to do
  250. Microphonics When Hot, Raytheon CK5842

Content Relevant URLs by vBSEO 3.3.2