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. measuring the power choke inductance confusion
  2. Single-end... which tube?
  3. bias voltage for 6BQ5 plate
  4. small poweramp with 12AH7 and 6AU6WA...
  5. Layout Check
  6. auto component placer with tube PCB prints
  7. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  8. Audio Electronics Supply AE-1 problems
  9. Cunningham CX 301A
  10. Quicksilver zener diode mod
  11. ELC7? I need help to identify this valve
  12. Spice 3f4 "Koren" models
  13. parallel or push-pull
  14. Isolation
  15. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  16. Magic Gu15
  17. Help identifing RCA transformer
  18. Problem with tube overheating. PLEASE HELP
  19. Battery powered phono.
  20. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  21. Has anyone used a triode as a shunt regulator?
  22. EL84 SE design recommendations?
  23. need a good low parts phono tube preamp schematic....
  24. Shunt Feedback - effect on input impedance
  25. searching bogen db10a schematic
  26. Swinging choke?
  27. Schematic help. (thread split)
  28. Playing with a Magic Eye.
  29. A music coming from component.
  30. DIY meeting in Belgium ?
  31. EL34 Push Pull weirdness
  32. Balancing DC-coupled differential stages
  33. Jadis JPS 2 schematic
  34. Leak Stereo20 rebuild ?
  35. Vintage amp rebuild advice
  36. simple 6v6 push-pull schematic ?
  37. valve newbie; 6H1H pre-amp.
  38. Polyprops as cathode bypass
  39. Eventual 300B advice welcome!
  40. Thinking about getting into Tubes, any kit recommendations?
  41. Another Mullard 5-20.
  42. Subbing EL86 (6CW5) for EL84
  43. Valve Warmer/Distortion PCB
  44. Having a problem with building this 6C45 PP amp.
  45. Blue glow in tube. Is the tube dead or not?
  46. Repairing VTL TL2.5
  47. Another ECL86 (integrated this time)
  48. CJ MV55 triode mode
  49. Mullard 20W Amp
  50. Pro Model Tubes,for example Avalon
  51. How to find out which is which????
  52. Matching a preamp to high output impedance source
  53. VSE PP1 driver stage
  54. Thordarson Choke type 1-8C42
  55. Ediswan ECL86 datasheet wanted.
  56. Minimal approach with hybrid rectification: Is this possible?
  57. SS vs. Tube Rectification (and chokes)?
  58. Help wanted on SRPP preamp
  59. New Pas Question no photos
  60. amp-schematic questions...
  61. 5902 subminiature audio pentode
  62. TPP versus PSE.
  63. my fun....
  64. Schematic for Siemens F2a tube amp
  65. Snubber
  66. Which preamp ?
  67. Distortion+low volume..
  68. JJ Tesla
  69. Dynaco Pas
  70. feedback resistor
  71. Grid stoppers?
  72. Transcendent T8 with 12 output tubes
  73. Can anyone recommend a good buffer circuit
  74. happy with my MC-25
  75. A building block approach to valve amp design
  76. math quiz- input z triode amp
  77. Need help in circuit analysis
  78. learning how to do this
  79. 5687 and ccs?
  80. Improving damping factor for OTL
  81. Solid State delay on turn on relay.
  82. output transformer 9030/3
  83. Dynaco MKIII: new power cord
  84. 50C5 add-on amp
  85. Finished my stereo amp!!
  86. spl for 300b, kt88
  87. 2A3 tube review
  88. Audio Transformer Query
  89. Lafayette Phono preamp.
  90. Power transformer help
  91. EL84 SE question
  92. Pop/crackle in one channel
  93. 6GM8 Operating Point
  94. Propper grounding.
  95. EL34 plate glowing?
  96. wavlength audio cardinal
  97. help for tube noob
  98. Placing the powertransformer
  99. Tube audio periodicals
  100. PSU Question
  101. AudioInnovation 400
  102. c3g connections
  103. 6c33c-b Se
  104. tube preamp distortion
  105. What do you guys use to drill holes on chassis??
  106. S.E Problem.Urgent help Please!
  107. 6CA7, El34 or 5881?
  108. svetlana tubes
  109. 18C51 tube help!
  110. Power Tubes
  111. OTL PS question!!
  112. suggestions for the "lowest noise" pentode
  113. drd c3g/300b - help needed
  114. tubecad is back
  115. Happy birthday to tubes. Happy birthday to tubes. !
  116. Anyone used...gulp...kitparts.com?
  117. Grounding the Decware Se84sc
  118. Rogers Cadet III Schematics
  119. OTL amp help
  120. most simple design
  121. Please verify this circuit, is correct??
  122. EL509 vs EL519
  123. Heathkit AA-181 schematic needed
  124. EF 91 / Z77 Amp? help needed for newbie
  125. buzzing ST-70...plea for help
  126. Zen se-84cs question............
  127. Help with transformer
  128. 211 or EL34Triode?
  129. bootstrapping two SE transformers into a pp one?
  130. Gary Pimm's battery biased mosfet cccs
  131. PSU for SRPP - Voltage or Current Regulator?
  132. MC-30 rebuild, any ideas?
  133. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  134. Amorphous core transformers only work above 20KHz?
  135. Help with component layout?
  136. Output Transformer Sizing?
  137. PSU worries...
  138. 6BL7 as output tube for low power SE amp?
  139. advice for 6L6GC P-P amp
  140. need some info in a UTC s-16? anyone!
  141. 2A3 power supply transformer
  142. Hi-Bass button
  143. Searching for my first tube amp
  144. Which phono preamp ?
  145. potted transformers
  146. chokes and power supplies
  147. Heathkit A7 ?
  148. Best tweeter amp
  149. Should I use a cathode capacitor in my SE amp?
  150. Help, Just Starting Out
  151. JJ Tesla ECC99 spice model
  152. Newbie to tubes, what can they handle?
  153. Quicksilver rectifier
  154. SE amp question
  155. yaqin mc10k
  156. Hello again, plus a couple of Q`s.
  157. My first home audio amp.
  158. Boostrapping?
  159. KT88 budget- Sovtek, Valve Art, EH?
  160. looking for schematic with 6em7 as a driver or...
  161. Multi-Channel Contol Unit
  162. TAD-EL84-STR experience?
  163. OTL question
  164. Good SET for newbie
  165. 6n1p simpl(ish) design
  166. Short list of DIY tube amps with PCBs available...
  167. Parallel feed (choke load) in output stage
  168. Few general question for starter?
  169. winding a simple PP output transformer
  170. Cats prefer 12E1's
  171. Tube vicinity heat problems(maybe?)
  172. Help me design pre-amp PS
  173. Power Amplifier With EL 34
  174. psu design problem
  175. Anyone have info about Jukka Tolonen?
  176. What do you think about this hybrid amp?
  177. Power supplies in mic tube preamps
  178. Hammond 1629SE
  179. 41 Valve Amp? vs 45
  180. DeWald M-1200
  181. Pilot AA-903B Tube Amp
  182. MC225 schematic needed
  183. Can you make a +/- supply with valve rectification ?
  184. Audio Innovations Series 500 problems
  185. Big, Heavy, Tube regulated Lambda Power supply
  186. Audio Note DAC Output Transformer Hookup
  187. Got some tubes, help me properly evaluate them
  188. current flow, which direction?
  189. Tube flashes upon turn on, why?
  190. Odd hum problem
  191. DHT and resistors in parallel w/ heater
  192. Presenting the "Fartbottle" deluxe.
  193. amp mod
  194. Need info about rare Siemens Cf "post tube"
  195. Tube defect - What is the problem.
  196. el84 amp
  197. VIETA A-215 Schematics
  198. 6AR6/6098 ultralinear
  199. Tube kit for beginner
  200. earthing!!!!!!!!!!
  201. Heating only one half of a double triode
  202. Quick question regarding PSU Designer II
  203. calculate +B in EL34 SE triode conect
  204. Help with driver transformer
  205. Tube buffer for a cd player
  206. VSE riaa equalizer phono stage
  207. AC or DC Heater?
  208. looking for a good valve amp to fix
  209. Best operating point for 7044 and 5687
  210. S&B TX102 and preamplier stages
  211. I need help
  212. 6AS7 Mono Block's
  213. Filter/Regulator for B+ Supply
  214. Ecf 83
  215. cheap but good SET amplifier?
  216. DRD calculator
  217. Luxkit A1020 need help!!!
  218. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  219. benifits of auto bias
  220. KR Enterprice
  221. Preamp Boards From Hong Kong
  222. earthing
  223. Best sounding medium priced EL34 tube?
  224. 6CA5 Rectifier - B2Spice Model
  225. Help needed for a 6L6 Push pull amp
  226. constant current filament regs
  227. 6SN7 Basics (Newbie)
  228. Anyone tried the EH fat bottle 6CA7?
  229. TJ Tubes
  230. My tubes are going down. HELP !!!!
  231. Tino Zottola...where are you ?
  232. Lilliput amp
  233. filament rails
  234. Ss Diodes??
  235. Tube mic preamp
  236. CCS Filament Regulators for split filaments
  237. Quicksilver 8417 power supply caps?
  238. Audio Research LS7
  239. simple valve preamp
  240. valve preamp
  241. stand by switch or not?
  242. Omega Grand 6 and which amp?
  243. Line amp to speakers
  244. a bit more bass?
  245. Output transformer application help please.
  246. 5687 pre...some problems
  247. Recommendations needed for designs of PP pentode strapped as Triode
  248. KT88 push pull noob questions (sry)
  249. Need help identifying Stromberg Carlson Amp
  250. help needed diagnosing Grounded Grid power supply

Content Relevant URLs by vBSEO 3.3.2