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. Chassis labels
  2. LM317 Regulator Problem
  3. Can I afford my SE amp ??
  4. 12B4 versus 6S4 for linestage
  5. Function Generator Probe?
  6. Otl Set?
  7. Tektronix TDS2000 series is a noisy scope
  8. vanderveen's 30W PP amp..
  9. Roberts/Akai M series amp problems
  10. What speaker to use with my tube clone
  11. What’s the best tube amplifier you can build?
  12. Cathode Follower Buffer Input Impedance
  13. EL84 as Preamp and as Crossover
  14. Wondering if Upcoming DIY design will work with Tubes? Cheap DIY Kits?
  15. EL 84 Single Ended Integrated
  16. "2 Stage" PP 7591 Amp
  17. Jolida 1301a with Mission M71 speakers?
  18. EL34 SE in 430V?
  19. EL 84 PPP/PP Class A Triode schematic
  20. Almarro A318A
  21. beckman berkley model 7360
  22. spice model for UL output transformer?
  23. Need help with my new amp
  24. E88CC Mullard fake
  25. Anyone try sharp cutoff pentodes in a p-p output stage?
  26. 845 A2 Monoblock Project
  27. newb needs help on simple el84 amp PS
  28. Newbie's power supply woes
  29. Question about M7 Preamp
  30. Which amp to DIY as a first project?
  31. help for psu
  32. tube amp
  33. Will a 6BH6 work in an Aikido?
  34. Tubes and maximum ratings
  35. FireFly Amp Question
  36. help needed 1st tube diy
  37. Help for newbie building Toccata preamp
  38. Hybrid amp -> tube for VAS stage
  39. I recently inherited a Heathkit HO-10 monitor o-scope...
  40. Aikido tube choice
  41. Biasing pre-amp problem
  42. Help with identifying tube
  43. Off Topic Holiday Cheer
  44. Prototype preamp example
  45. PV10AL Transformer burned, help!
  46. EL34 Pentode in Push-Pull!
  47. Mcintosh MX110 repair
  48. Mains Transformer Question
  49. Loaded Question
  50. A BIG SCRATCH in my speakers? Help me please.
  51. New Production Tung Sol 6550 Tubes - Opinions
  52. Looking to build a tube integrated
  53. Which high power CCS for output stage?
  54. Using a mosfet to drop B+?
  55. drawings vs. schematics
  56. New TEK Scopes
  57. Transfos Anyone?
  58. Ripple guidelines for power supplies
  59. Mains transformer orientation
  60. AMD tube integrated tube amp
  61. Using Choke in LCRC filter in power supply
  62. Need good current sink JFET or MOSFET?
  63. Setting Up a Circuit for Testing
  64. 6H6 question
  65. Kennedy Tube Audio Website Hijacked
  66. Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid.....
  67. transformer for Philips AG9015
  68. Real McTube Help
  69. Where are the 307A / VT225 amps?
  70. Anyone have a single el84 PPP OPT?
  71. Using an old power transformer as a choke?
  72. Convergent Audio Technology SL-1 Scematics
  73. Poinz 6AQ5 Linestage
  74. microphone preamp
  75. Ticking noise, need help.
  76. Humm in my preamp...
  77. Enclosure suggestion/questions
  78. Calculating Tube Parameters +SPICE
  79. Loudspeaker for TUBE DIYer
  80. Tube ID 18R-AL1?
  81. 6l6gc Tube Drive
  82. Need a little help, TT and PC? Amp Kit?
  83. 12ax7 preamp
  84. 308/ecll800 Lorenz
  85. How did you do your Aikido?
  86. Thoughts on this 807 design
  87. Rectifier compatibilty
  88. Tube amp for biamped speaker
  89. 12ae6, 12fk6, 12fm6 diode specs
  90. Any software out there for taking the headache out of composite loadlines?
  91. Driving a single 6L6GC with 12AX7
  92. quick 50c5 to play around with
  93. A question about distortion in SE vs. PP designs:
  94. Need help on first tube amp rebuild -trans problems
  95. HAMMOND 125ESE Transformer WIRING
  96. preamp ps problem
  97. What does everybody really NEED???
  98. Marantz 7C still good today?
  99. Magnavox Chassis #196-55 Resistor Question
  100. 6BL7
  101. altec/peerless mystery amp
  102. 6gk8 triode pentode tube data
  103. Low Current Source
  104. Parallel Single-Ended Questions
  105. Tube power ratings
  106. 6DJ8 or 12xx7 for hybrid amp (Monarchy)
  107. What did I do wrong with LEGACY????
  108. seeking: tube for a SEP parallel feed like an EL84, but with a lower Ra
  109. Tube Tracer
  110. a question of tube behaviour
  111. Which tube? ECC82, 6SN7 or 6SL7
  112. oscillator
  113. The Covi Mark II Circlotron Amp
  114. HT transformers and polarity
  115. Hammond 156C - good Plate choke load??
  116. DIY pre-amp kit vote
  117. 6550 tubes
  118. Is the 6N6P a direct substitute for the 5687?
  119. SE amp using 1619 instead of 45 triode
  120. Akai M-7 Amp Schematics?
  121. asl 845 monos mods
  122. 3 stages... Two Power Supplies
  123. RCA 7094 tetrodes...
  124. KT88 push pull
  125. Tube amp fan?
  126. Ping gerd.....
  127. Need help finding Sovtel EL84M tubes
  128. Min. current draw for choke input?
  129. Passive RIAA with tubes
  130. Oscillation Mystery
  131. unison research P30K schem?
  132. Can I use a 5R4 GY in place of a 5AR4?
  133. Seeking for all Norman H. Crowhurst papers
  134. best way to elevate heater?
  135. Tube Load Line
  136. Homemade Vacuum Tube
  137. beardm70mk2-want less b+
  138. Need help with tube test data - fast
  139. Show me a schema 6Pi3C-E Push-pull
  140. Help about the 6SN7/5692 linestage
  141. Active load output stage
  142. Power supply question
  143. EL34 Triode Mode - G3 where?
  144. Screen grid driver for PL519?
  145. Best replacment for a 6F2
  146. Please Tell Me How To Modify And Upgrade My Music Angle 845 Amplifier?
  147. Pentode to Triode trick.
  148. 6550 making a Popping sound?
  149. Pie-eyed and puzzled...
  150. How about this schematic
  151. tube disorder
  152. PC choke in a preamp ?
  153. selective tone control
  154. time for a laugh
  155. Another New Build Pictures ( G' Amp )
  156. Help finding: 7-pin PCB socket, 90deg horizontal
  157. LC vs. CLC Theory
  158. Input transformer & volume pot
  159. MC34-B Quit working suddenly (newb)
  160. Golden Tube Audio 300B se
  161. Wanted: Pioneer sa-810 schematic
  162. se el34 finally
  163. Tube design question
  164. Marantz 8 clone build
  165. Active RIAA Eq for tubes- Brian Clark's article
  166. pre hums - even unplugged!
  167. Push Pull Preamplifier anybody?
  168. 6AN8 tube question
  169. Distortion in Fisher 800C
  170. 20% versus 43% screen tap
  171. Van der Veen transformers
  172. Want to upgrade Velleman K8020
  173. KT88 Power supply question
  174. TX coupled, pentode linestage
  175. phase splitter question
  176. New preamp project is online
  177. Newbie: Which amps to build?
  178. Which valve, 5842 (417A) or 6H30
  179. How do you punch out your chassis holes?
  180. Help identifying tube tester
  181. paralelled tube
  182. ECC88 at 12 volts
  183. azarus preamplifier schematics
  184. Which valve amp do I keep?
  185. Favorite Driver for 845
  186. Somebody has that magazine?
  187. modify parallel push-pull EL84 to single push-pull
  188. How long it will last?
  189. Hurricane Wilma
  190. Suddenly, no output from Copland CTA-501
  191. 807 Audio Amp Progress Report
  192. Choke induced Hum
  193. Wim's DC EL84 amp
  194. Drivers for a KT88 pair
  195. what do u think of these tubes?
  196. 12BH7 spice 3f4 model
  197. Clone Marantz M7 Line Amp
  198. 6HF5 sweep tube single ended amp
  199. My first DIY
  200. Winding A Interstage Transformer
  201. help building 12ax7/el84 amp
  202. PSE schematic
  203. Using PSU Designer to calculate DC filament supply
  204. Dynaco stereo 70 driver board
  205. Excellent and cheap DIY INTERSTAGE!
  206. Need Advice with Timer Relay Shut Off
  207. standby switch
  208. Purpose of small cap across PSU rails?
  209. 6SL7 + EL34 SE Audio Amp
  210. 6C33 fixed/auto bias ?
  211. Long Tail and Local feedback
  212. I look for EAR 859 pictures.
  213. Designing a simple tube opamp?
  214. Difference between Hammond 200 and 300 series
  215. Ultrapath Cap
  216. where to find 600v 18awg wire??
  217. Suggested power supply B+?
  218. Variable Impedence Mic Preamp
  219. Help me stop my preamp from farting!
  220. The Valhalla power amplifier project
  221. help! EL84's dying
  222. Could check this pentode-mu stage thingy for me (disclaimer* it is for a gutar amp)
  223. ASC Polypropylene And Oil Capacitors
  224. pots... log or linear?
  225. Cracking sound through speakers.
  226. EL84-PP - Why just 5W?
  227. Brook12a schematics...
  228. LongTailedPair gain -> how to calculate?
  229. Wiring secondaries of two power trafo's in parallel?
  230. RIAA "Tube Simulations"
  231. Has anyone built this 'Svetlana Six Pack' ?
  232. updated pics of tube project
  233. help 12FV7 datasheet
  234. Why does my oversized preamp trafo gets much too hot?!?!?
  235. 6sn7 pre
  236. 12AY7/6SN7 preamp PSU check
  237. CT design trans application
  238. Shindo schematics?
  239. Octal Hagerman Cornet Experiences
  240. Zenith AM/FM C835 tube Radio schematic
  241. Oh man, my telefunken stoops...
  242. 42 single ended
  243. EL34 Feedback circuit
  244. Spice model for EL86/6CW5
  245. Ditching some High Voltage
  246. Newbie want to build simple tube preamp&psu!need help!
  247. Phono Pre-Design Input
  248. HV Direct Drive tube amp.
  249. A question about Cathodyne/split load/concertina PI's
  250. Kofi Annan in: "Hummin' Trafo Blues"

Content Relevant URLs by vBSEO 3.3.2