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

  1. Tube ID 18R-AL1?
  2. 6l6gc Tube Drive
  3. Need a little help, TT and PC? Amp Kit?
  4. 12ax7 preamp
  5. 308/ecll800 Lorenz
  6. How did you do your Aikido?
  7. Thoughts on this 807 design
  8. Rectifier compatibilty
  9. Tube amp for biamped speaker
  10. 12ae6, 12fk6, 12fm6 diode specs
  11. Any software out there for taking the headache out of composite loadlines?
  12. Driving a single 6L6GC with 12AX7
  13. quick 50c5 to play around with
  14. A question about distortion in SE vs. PP designs:
  15. Need help on first tube amp rebuild -trans problems
  16. HAMMOND 125ESE Transformer WIRING
  17. preamp ps problem
  18. What does everybody really NEED???
  19. Marantz 7C still good today?
  20. Magnavox Chassis #196-55 Resistor Question
  21. 6BL7
  22. altec/peerless mystery amp
  23. 6gk8 triode pentode tube data
  24. Low Current Source
  25. Parallel Single-Ended Questions
  26. Tube power ratings
  27. 6DJ8 or 12xx7 for hybrid amp (Monarchy)
  28. What did I do wrong with LEGACY????
  29. seeking: tube for a SEP parallel feed like an EL84, but with a lower Ra
  30. Tube Tracer
  31. a question of tube behaviour
  32. Which tube? ECC82, 6SN7 or 6SL7
  33. oscillator
  34. The Covi Mark II Circlotron Amp
  35. HT transformers and polarity
  36. Hammond 156C - good Plate choke load??
  37. DIY pre-amp kit vote
  38. 6550 tubes
  39. Is the 6N6P a direct substitute for the 5687?
  40. SE amp using 1619 instead of 45 triode
  41. Akai M-7 Amp Schematics?
  42. asl 845 monos mods
  43. 3 stages... Two Power Supplies
  44. RCA 7094 tetrodes...
  45. KT88 push pull
  46. Tube amp fan?
  47. Ping gerd.....
  48. Need help finding Sovtel EL84M tubes
  49. Min. current draw for choke input?
  50. Passive RIAA with tubes
  51. Oscillation Mystery
  52. unison research P30K schem?
  53. Can I use a 5R4 GY in place of a 5AR4?
  54. Seeking for all Norman H. Crowhurst papers
  55. best way to elevate heater?
  56. Tube Load Line
  57. Homemade Vacuum Tube
  58. beardm70mk2-want less b+
  59. Need help with tube test data - fast
  60. Show me a schema 6Pi3C-E Push-pull
  61. Help about the 6SN7/5692 linestage
  62. Active load output stage
  63. Power supply question
  64. EL34 Triode Mode - G3 where?
  65. Screen grid driver for PL519?
  66. Best replacment for a 6F2
  67. Please Tell Me How To Modify And Upgrade My Music Angle 845 Amplifier?
  68. Pentode to Triode trick.
  69. 6550 making a Popping sound?
  70. Pie-eyed and puzzled...
  71. How about this schematic
  72. tube disorder
  73. PC choke in a preamp ?
  74. selective tone control
  75. time for a laugh
  76. Another New Build Pictures ( G' Amp )
  77. Help finding: 7-pin PCB socket, 90deg horizontal
  78. LC vs. CLC Theory
  79. Input transformer & volume pot
  80. MC34-B Quit working suddenly (newb)
  81. Golden Tube Audio 300B se
  82. Wanted: Pioneer sa-810 schematic
  83. se el34 finally
  84. Tube design question
  85. Marantz 8 clone build
  86. Active RIAA Eq for tubes- Brian Clark's article
  87. pre hums - even unplugged!
  88. Push Pull Preamplifier anybody?
  89. 6AN8 tube question
  90. Distortion in Fisher 800C
  91. 20% versus 43% screen tap
  92. Van der Veen transformers
  93. Want to upgrade Velleman K8020
  94. KT88 Power supply question
  95. TX coupled, pentode linestage
  96. phase splitter question
  97. New preamp project is online
  98. Newbie: Which amps to build?
  99. Which valve, 5842 (417A) or 6H30
  100. How do you punch out your chassis holes?
  101. Help identifying tube tester
  102. paralelled tube
  103. ECC88 at 12 volts
  104. azarus preamplifier schematics
  105. Which valve amp do I keep?
  106. Favorite Driver for 845
  107. Somebody has that magazine?
  108. modify parallel push-pull EL84 to single push-pull
  109. How long it will last?
  110. Hurricane Wilma
  111. Suddenly, no output from Copland CTA-501
  112. 807 Audio Amp Progress Report
  113. Choke induced Hum
  114. Wim's DC EL84 amp
  115. Drivers for a KT88 pair
  116. what do u think of these tubes?
  117. 12BH7 spice 3f4 model
  118. Clone Marantz M7 Line Amp
  119. 6HF5 sweep tube single ended amp
  120. My first DIY
  121. Winding A Interstage Transformer
  122. help building 12ax7/el84 amp
  123. PSE schematic
  124. Using PSU Designer to calculate DC filament supply
  125. Dynaco stereo 70 driver board
  126. Excellent and cheap DIY INTERSTAGE!
  127. Need Advice with Timer Relay Shut Off
  128. standby switch
  129. Purpose of small cap across PSU rails?
  130. 6SL7 + EL34 SE Audio Amp
  131. 6C33 fixed/auto bias ?
  132. Long Tail and Local feedback
  133. I look for EAR 859 pictures.
  134. Designing a simple tube opamp?
  135. Difference between Hammond 200 and 300 series
  136. Ultrapath Cap
  137. where to find 600v 18awg wire??
  138. Suggested power supply B+?
  139. Variable Impedence Mic Preamp
  140. Help me stop my preamp from farting!
  141. The Valhalla power amplifier project
  142. help! EL84's dying
  143. Could check this pentode-mu stage thingy for me (disclaimer* it is for a gutar amp)
  144. ASC Polypropylene And Oil Capacitors
  145. pots... log or linear?
  146. Cracking sound through speakers.
  147. EL84-PP - Why just 5W?
  148. Brook12a schematics...
  149. LongTailedPair gain -> how to calculate?
  150. Wiring secondaries of two power trafo's in parallel?
  151. RIAA "Tube Simulations"
  152. Has anyone built this 'Svetlana Six Pack' ?
  153. updated pics of tube project
  154. help 12FV7 datasheet
  155. Why does my oversized preamp trafo gets much too hot?!?!?
  156. 6sn7 pre
  157. 12AY7/6SN7 preamp PSU check
  158. CT design trans application
  159. Shindo schematics?
  160. Octal Hagerman Cornet Experiences
  161. Zenith AM/FM C835 tube Radio schematic
  162. Oh man, my telefunken stoops...
  163. 42 single ended
  164. EL34 Feedback circuit
  165. Spice model for EL86/6CW5
  166. Ditching some High Voltage
  167. Newbie want to build simple tube preamp&psu!need help!
  168. Phono Pre-Design Input
  169. HV Direct Drive tube amp.
  170. A question about Cathodyne/split load/concertina PI's
  171. Kofi Annan in: "Hummin' Trafo Blues"
  172. Rattling Tube
  173. Berning output buffer
  174. Tube PSU Question
  175. JoLida Envoy PreAmp or DIY?
  176. Looking for Audio Note P1SE schematics.
  177. Which SE-ECL82 amp to build?
  178. PSU Help
  179. Help for stabilisator Data
  180. How much ripple on B+ is allowed?
  181. Typical 2A3 hum?
  182. PV10 PS transformer
  183. 300B Filament Voltage Range
  184. Mullard EL34-Authenticity Verification
  185. Philips V30M amplifier
  186. PWM power supply???
  187. Regulated psu for tube preamp
  188. About to start a new project: PP 6CK4s...
  189. Komuro DC 300B crct w/ 50dht?
  190. DIY speaker attenuator?
  191. So what are some good 7-pin, hi mu, low noise/microphonic tubes??
  192. Audio meet pics from this past weekend
  193. Audio Note M7 Line Preamp??
  194. PP 7591 amp
  195. Tube op amps
  196. Please tell me how to upgrade Music Angel KT88 amplifier?
  197. Do I want a fan?
  198. 3rd Aikido?
  199. More Questions about A.Wrights PP1C
  200. 7591s flashing on start-up?
  201. first amp build... wiring questions
  202. pentode aikido driver for 300b
  203. Question about single NOS triodes in cascode for fun
  204. oscillating PP EL84 amplifier
  205. 6H30P based cathode-follower schema kindly requested
  206. Cathode follower question
  207. Bunch of old parts, worth anything?
  208. 6922 vs. 6N1P Bass Response
  209. Behringer reaches a new high in tube "transparency"
  210. Input stage tube
  211. Using transformers as choke?
  212. Resistors
  213. melos gk1 preamps anybody?
  214. Looking for a thread...
  215. DG7-32 based oscillograph schematic needed
  216. Try!!! Ef37a + 6c33c
  217. qustion on tube grade wiring
  218. Balanced pre-amp attempt
  219. GRRR.. sanity check on PTx current please
  220. How do you measure ripple on the B+?
  221. Aikido + EL34 Integrated
  222. heater voltage: why ac, and not dc?
  223. Ideas for using one ECL82 in a preamp
  224. Question about 12AU7
  225. 6AU6, 6U8, 6CL6, plus UTC A-10 make Mic Pre?
  226. WIMA FKP1 1000V as coupling cap ??
  227. Ping amperex re: Hammond organs
  228. schematic needen variable power supply
  229. Distributed Load/Balanced Bridge Connection
  230. CCS, feedback and grid leak questions.
  231. Vdd
  232. Help with 6GW8/ECL86 tubes??
  233. Best amplifier (recomendations) for Fostex FE108ez?
  234. Quick valve construction question
  235. Poindexter's 6v6 PP amp
  236. need some help with Ohm's law-fast!
  237. hybrid rectifier question
  238. I really, really wish I hadn't done that...
  239. Quicksilver 8417 conversion
  240. Supratek
  241. remote OPT, stupid idea ?
  242. Autoformer output stage
  243. Remote Power Supply: A Stupid Idea?
  244. Rjm simple tube phono pre
  245. Voltage controlled filter with tubes ??
  246. Does this look right to you?
  247. PWM amplifier hooked onto a tube preamp
  248. Zenith Console Opt Question, Odd Secondary
  249. Marchand LN108 Tube Phono Preamp
  250. Anyone care to express an opinion on this output Transformer

Content Relevant URLs by vBSEO 3.3.2