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

  1. Bogen chb100 input conversion suggestions
  2. MesaBoogie 400+ clone
  3. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  4. R-core xformers from China
  5. Counterpoint Service manual wanted
  6. Two chokes in one pot?
  7. help with a transformer
  8. 311T (211 alike) HIGH power triode
  9. Re-attaching anode cap to 805 or 811A tube
  10. "Fisher Doctor"
  11. Aikido + class D in the output stage
  12. tube-shop-com
  13. Ultrasonic heaters
  14. Grounding the Filament Winding
  15. Lundahl LL1680 for balanced output
  16. Website is back & new books posted
  17. strange tube G1 S/5
  18. First Tube Amp Needs an Overhaul
  19. pspice models for tubes
  20. Source for iron cores?
  21. Quad EL84 SE question
  22. Use of 12j1l and gu-50 tubes
  23. Shuguang 300B-98C
  24. Philips AG-9016 Upgrades???
  25. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  26. tube amp in a PCB with a toroidal xformer beside it?
  27. Need advice running 220v in USA
  28. My Fender Princeton FD2 chasis (clone)
  29. Parallel-Push-Pull KT66 organ amp conversion ???
  30. new on tubes
  31. Balance 5687 pre-amp any advise??
  32. The Limitations of an EL34 in UL
  33. Source for tube bases....?
  34. 10Y, 26, 27 and 45: relative microphonics
  35. KT77 Mod Question/Idea/Punshishment
  36. KT88 SE with Edcor xfrmr
  37. Diy Distortion Pedal
  38. 45 fans expanded horizons upstream?
  39. 12B4a Cathode Follower
  40. Hybrid voltage doubler using tube and diode
  41. Finally finished my first tube amp!
  42. advice on an EL84 Push pull Amp schematic
  43. Vintage radio
  44. Look for 12AU7 Preamp Circuit .
  45. PSU question? Going tube rectified
  46. PSU Rebuild Help Pleas
  47. Screeching tubes
  48. help in adjusting Vout in the power supply of the "Brute force in a line stage" by Er
  49. Fisher 800 restoration
  50. stern's ecl86 amp
  51. Look for Western Electric KS-16547-L1 circuit diagram
  52. Help about grommes 500C
  53. Dynaco MK III with 6146A tubes.
  54. Volume pot for Musical Fidelity F22 pre amp.
  55. Don't you just hate it when
  56. Bogen 8417 tube conversion..?
  57. How to Build Unbilical from PS to Phono
  58. Class A SET preamp, help
  59. Grounding MFA Luminescence
  60. custom transformer manufacturers (potted if possible)
  61. To Recap - A Question
  62. KT 44 anyone tried these
  63. Volts AC rating in power supply caps
  64. unfamiliar tube brand
  65. power supply schematic with a 6080 used as a "pass tube"
  66. Electro-Vox LA-210 Preamp; tube
  67. why so CHEAP!?
  68. Antique Electronic Supply
  69. Best Use For My Sansui Iron?
  70. Help on AMC CVT 3030
  71. Heathkit W-5M Red Plate Issue
  72. 1st Post (here) : ) My first project: Boozhound Amp
  73. regulated DC heater supply
  74. Help me pick up some good tubes! Urgent!
  75. CLCRC power supply config
  76. Choke Replacement Question.
  77. What tube instead of 7189
  78. Help on PP EL 34 from Claus Byrith
  79. Datasheet of PTT4 tube?
  80. ready to give up
  81. O-Ring sizes for Tube Dampers
  82. preamp /amp combination question
  83. Strange Transformer Question.....
  84. Audio Note M3/4/5/6/8 schematics
  85. Lundahl LL1540 for SY's heretical?
  86. Henrys
  87. 955 Acorn tubes
  88. Do you know these Ampex mono Amps
  89. Audio Research Resistor Type
  90. What's the best low wattage guitar amp?
  91. volume issues
  92. Need advice for best CCS
  93. confusion in the resistor/capacitor values and B+ supply for the aikido
  94. What are the diferences between these ways of output?
  95. PS for tube preamp
  96. what resistors are in the aikido signal path
  97. clarification of aikido heater supply
  98. Audio Note schematics
  99. Data for PE08/40
  100. PA-060 use
  101. Anode loaded 6080 giving less than unity gain, Why??
  102. Frustration with hum and noise in guitar tube amp
  103. 3/8in thick acrylic - would this make a good chassis?
  104. 6c19p Se?
  105. CF and SRPP in one circuit . .
  106. WE417/437 with battery or RC on cathode
  107. Building a Preamp:Dual Outputs Question
  108. Audio Note Conquest?
  109. metallized caps instead of electrolytics in a tube rectifier power supply?
  110. Power transformer as Parafeed output?
  111. Bogen amp
  112. Noob question about plate load
  113. adjusting gain?
  114. Lowering HT
  115. Kaneda hybrid preamp error ?
  116. Match priorities to schematic & toobs
  117. what do you think of this integrated?
  118. Modified Audio Note M7 Tube Pre Amplifier PCB
  119. lundahl xformers - are they potted?
  120. Beginner's very simple line pre-amp
  121. UX-226 Preamp
  122. Difference between microphones
  123. sv572-30, where to find
  124. E182CC - how to connect heater supply?
  125. Aikido pre tube for Minimum Gain
  126. 14gt8...clipping diodes?
  127. HPHV regulator
  128. Grounded Grid
  129. NYAL Super-It - removing volume pots, what resistor value to replace them?
  130. Another Bogen Conversion
  131. Trouble with my "new" PAS-3 Preamp
  132. Tubalizer, Monica
  133. musical angel modified marantz 7 preamp schematics
  134. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  135. Solder directly on tube?
  136. article in NY Times on Russian tubes
  137. Sovtek's sad tale
  138. audio research LS25 preamp
  139. Schematic needed PL519 Push-Pull Ultra-Linear amp
  140. Use 6C19 in a phono amp?
  141. 6L6 Push pull -- Power tranny question
  142. INPOL technology. Duh.
  143. Transformer problem
  144. Anyone tried a hi-voltage project as their first?
  145. Schematic needed PL519 Class A SE
  146. Giaime's new toy - aka the UniOctal
  147. Critique my circuit?
  148. New EC8010-VT52 Amp
  149. EL84/6BQ5 triode pp with no cathode biasing
  150. EL34 Push Pull in Class A
  151. In search of tube audiophile in Dhaka, Bangladesh
  152. Passive preamp with utc transformers
  153. RGN rectifiers in PSUD2...
  154. Power amp harmonics ?
  155. bypass tone controls on heathkit sp-2
  156. PS Caps
  157. Doubts on cathode stripping in tubes
  158. Edcor amplifier --> 6l6 PP
  159. Welborne labs phono stage needs help, got killed in power surge last night
  160. Huge OPT and small tubes
  161. UTC technology
  162. Luxman 38FD schematic
  163. EL84 PP Diy. Pls help me!!!
  164. Wurlitzer amplifier needs help
  165. Grounding case of 6J5
  166. Tube HW question from a software guy
  167. 12AU7 tube preamplifier schema
  168. "Improved RIAA by Jax"-Power supply help needed!!!
  169. OT Overload question
  170. V76
  171. Application of 6877 ?
  172. First nos tubes
  173. Looking for tube sockets
  174. Input transformers impedance questions
  175. Hybrid amp schema?
  176. Hybrid Cascode ?
  177. Interstage topology question
  178. raccomandation with valve amps
  179. Power Transformers in Output!
  180. How do I design "SCREEN GRID DRIVE"
  181. My El34 SET
  182. Ancient Bogen 807PP Amp-Guitar
  183. Schematic needed 811a Class A2
  184. Power transformer from Tek545 'oscope
  185. Agape Audio Labs
  186. ETF06 - A century of good sound
  187. I completed my amp!
  188. Overload recovery
  189. Converting SS eq. to Tube
  190. oscillation
  191. Tube preamp with: 1V in and 15Vout???
  192. Electrolytic Cap Search
  193. Bibster's 5687 Linestage, the return
  194. Anyone know anything about Morreto amps?
  195. Determining Output Power
  196. Turn on static?
  197. Estimate power transformer current rate?
  198. Control grid Voltage / grid stoppers...
  199. Horizontal TV tubes used in amplifier?
  200. tube sterio preamp complete
  201. Cons for using instrumentation tube PS for project amp...
  202. Svetlanas site down?
  203. Calculations for new Power transformer
  204. Mullard CV4015 info?
  205. SMPS for tube amp?
  206. Pentode Push-Pull
  207. LL1660S Anomaly
  208. DIY Hybrid poweramp noise and hum problem
  209. tube questions
  210. Problems w/biasing a lC50
  211. Big Honkin Tele
  212. Tube DIY store
  213. Pronouced 300B amp Midrange
  214. Tube preamp with current mirror
  215. Transformer Coupling and Headphones? (Toob Noob)
  216. Who can explain the source of this Siemens 12AU7
  217. how does one tell when a tube is truely dead?
  218. A curious observation
  219. Help choosing capacitor value?
  220. Neon Power?
  221. The rectifier from hell, a little story.
  222. a directly heated monkey?
  223. 6l6gc SET, my first DIY
  224. SE Output Transformer Matching
  225. power tube biasing
  226. Jupiters: Tolerance: 26% over spec: o.k.?
  227. Help! 6DJ8 Tube Buffer Schematics
  228. Output Transformers for an EL84 Push-Pull Amp
  229. Advice regarding philips/mullard EL34
  230. 300b based monoblock plans
  231. need help for Marshall PCB
  232. Marshall schematic ?
  233. counterpoint Sa 5.1
  234. Help with bogen CH8
  235. where do you get those schematics / layouts?
  236. Spice 3f4 model of a low voltage direct heated signal level pentode
  237. ECC82
  238. Major diff between 12AX7 and 12AU7
  239. Voltage doubler question
  240. el34 instead of 6550
  241. Bogen CH8
  242. Ah Njoe Tjoeb 4000 problem
  243. my last project
  244. TIP50 voltage regulator
  245. Collets for 212 pins
  246. K-12M Enclosure + Upgrades. Finished!
  247. Will this work?
  248. Big tube - what is it?
  249. Help! no signal! Marshall JTM60
  250. PSU topology & regulator

Content Relevant URLs by vBSEO 3.3.2