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

Content Relevant URLs by vBSEO 3.3.2