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

  1. Identifying these Valvos.
  2. Converting tube guitar amp to Hi-Fi amp
  3. 21kW audio power amp?
  4. Quicksilver conversion
  5. DC PSU for both 6.3vdc and 5vdc from one 6.3vac transformer?
  6. Hammond Transformers in Montreal/Canada
  7. Can't find data for 8624
  8. Any advice on modifying a 2A3 SET amp to parafeed?
  9. Output impedance for non published PP configuration
  10. Grid stopper resistor required (KT66)?
  11. Ask Jan First OPTs
  12. For what are high mu triodes still useful?
  13. CCa "low noise"?
  14. Upgrading my Audio Research VT 130 SE Tube amp
  15. 100ma FSD voltmeter
  16. Conqueror schematic
  17. Bassman 135 OT
  18. Ground reference
  19. Overdriven Capacitor?
  20. Tone Controls?
  21. My first "from scratch" design, SE KT88..........
  22. OPTs of questionable utility
  23. 6336 as a Rectifier
  24. tube power supply
  25. Anyone read Russian?
  26. PSU - dropping resistors?
  27. pre-amp design, just curious about your thoughts here.
  28. Using isolation transformer as a PSU transformer???
  29. KT66 loosing its getter
  30. Mullard schematic?
  31. Mikale Abdellah SE KT88 B+ voltage?
  32. Layout software
  33. Does anyone have any schematics for a parafeed SET amp?
  34. music angel kt88
  35. CB radio
  36. The end of the 300b Dream?
  37. Voltage divider to reduce 6v dc to 2vdc
  38. oil injected rca cables?
  39. Modification.....
  40. CHOKY'S EC8010 preamp
  41. Using a Grid Choke On the 2A3 when the input/driver is a Pentode?
  42. tube checker
  43. 300B tube going dead after a few months
  44. KT88 se build NO GAIN please help
  45. mengyue mini valve amplifier
  46. Preamp suggest, please.
  47. Problem: Severe power transformer and choke vibration
  48. Amp Hack schematic questions
  49. This circuit ok?
  50. Tube ID anyone?
  51. Posted new books and data
  52. The sound of a failing tube rectifier?
  53. Proyect with PL36 and N2P (Russian ECC83)
  54. 300b LTspice model with grid current?
  55. Tri-amp using 2a3 SETs
  56. TentLabs Directly Heated Tubes Supply
  57. Bevois Valley Design Question
  58. Kofi Annan in: "Oscillation Blues"
  59. Common mode choke model
  60. UTC 20 Watt Amp - Any Experience?
  61. 6cz5s for EL84s
  62. The 120Hz Blues...
  63. Amplitrex AT-1000 Tube Tester
  64. audio amp. versus guitar amp
  65. Grounding points....
  66. Cap values for CLC filter
  67. Tube glows red hot, blows fuse
  68. Independent Bias Adjust for Each Tube?
  69. Mesa Boogie Maverick schematic any1?
  70. KT-88 from a book
  71. Modelling PSU?!
  72. DD amp for ESLs...
  73. Today's tube manufacters, best is?
  74. Advice on hum in phono stage
  75. Cathode follower & SRPP q
  76. FREDs on PSU
  77. Hybrid Shenanigans
  78. How hard is it to rewire my amp from 6av6/6cg7 to just 12ax7 types?
  79. 5AR4 heaters
  80. Bad Grounding,or Cheap Pot??
  81. Tube Construction Handbook
  82. WE 350: dry bass?
  83. What size capacitor I use for a 2A3 or 300B cathode bypass?
  84. Need helps with building poweramp stage
  85. Noah's Ark for electron tubes
  86. Fixed Bias suggestions
  87. OD3/OA3 voltage regulation design
  88. DHT filament heating with SMPS + CCS
  89. Using SE transformers in a PP circuit
  90. EDCOR Releases Line of Guitar OPT's
  91. Schematic: Audio Innovations, The first audio amplifier
  92. Restoring 1948 Gibson GA-30 guitar amp(tube)
  93. Now THIS is tube DIY to the extreme
  94. Dynaco mkIII A431 op's
  95. Alternative to Power Transformer
  96. Help with e180f and ixys current reg
  97. Building a "Hiwatt" tube Bass Amp
  98. help! no power, im lost
  99. Jerrycan amp (RH34SE)
  100. 12B4 Updates
  101. www.diykits.com.hk stepped volume control ... any good?
  102. Hammond L-100 conversion
  103. Anyone have the ASL model MGSI15 schematic ?
  104. Replacement for single-winding OPT?
  105. Buzz in new amp...
  106. 48V B+ linestage
  107. Line-Stage Opinion Question
  108. Audio applications of sweep tubes and ratings
  109. Differences in structure between parafeed ad gapped OPTs
  110. Take a look and let me know what you think
  111. Printed circuit board designing?
  112. SimpleSE - Switches, Wire, IEC, Jacks
  113. KT90 why this ?
  114. Break in
  115. Choke Design - Basic Questions
  116. Is this a good interstage transformer?
  117. Best tubes for bass?
  118. Tube amps & MP3's
  119. TRIO 15Hz Oscilloscope CS-1560A
  120. Newbie Needs Help Choosing A Kit
  121. I need a negative supply rail--but how?
  122. Strange Hum
  123. VR Tubes
  124. Understanding plate loads
  125. How do you know if your preamp has inverted the phase?
  126. Bogen J130 PA to guitar amp?
  127. 6P1 Equivalent
  128. EL34 and KT88??? 6550?
  129. one stage DHT amp
  130. 6V6 Output?
  131. Lineup of four: Help me choose?! OPT for SE
  132. 6DJ8 / 6922 tube?
  133. bias pilot sa 260
  134. Using vintage OPTs as PSU chokes ?
  135. crystal palace driver stage by morgan jones
  136. Why Are 12A*7 Tubes So Bad?
  137. Mikael's KT-88 question
  138. OPT for PSE 6c33c tubes
  139. 24v aikido distortion
  140. ED8000 SE or Parafeed?
  141. GZ33 Rectifier drop?
  142. counterpoint sa11
  143. High voltage problem
  144. Wire gauges
  145. Simple headphones out
  146. Mull(ard)ing over valve choice...
  147. Turning on B+ without heaters with aikido
  148. New Project - Plitron 4006
  149. Where in Brisbane can I get a transformer for my Chinese amp
  150. Etching or silkscreening chassis?
  151. can please someone explain this to me?
  152. A VCCS tube amp, how?
  153. How to add a subwoofer out?
  154. Kind of cool check it out
  155. new opt for s5 k16ls?
  156. Wanted Arkay SP6, Knight 83YX768 schematics
  157. toggle switch for input selector
  158. Tube Rectifier protection
  159. Quick Q on Max G2/Screen Volts..
  160. Cathodyne follower? :)
  161. Real music power
  162. Tube info needed
  163. Petrol Head Amp
  164. Help Needed- Replacement Volume Pot For a Fisher KX100
  165. What are these caps good for?
  166. 300B Set amp some variations
  167. my second design circuit(hifhgain guitar amp)
  168. why p-p amp RL for class B is 1/2 the class A load?
  169. Is this circuit ok?
  170. JTM60 capacitor question
  171. Attenuators ------ Please Help
  172. Transformer Coupled Pentode Question
  173. no response needed 903@klipschorns
  174. KT88: EH vs. Winged C
  175. Voltage swing on a guitar pick-up?
  176. Anyone have experience with the China made tube amps
  177. tubelab SE 300b power transformer
  178. Toroidal transformer potting can
  179. 300B - Push Pull or PSE to drive a commercial speaker
  180. Consonance Ella Diy hifi supply, el34, 6550 or KT88?
  181. Choke Input Filter.
  182. Preamp comparisons
  183. Amperite delay relays
  184. Help with making a tube amp?
  185. Linestage suggestion for Kuei Yang Wang's phonostage
  186. Altec Lansing 440B preamplifier
  187. Modding a Bogen CHB100...
  188. Report: One-Electron PRC as input choke
  189. Phase Splitter Name
  190. 6ck4 sweetspot
  191. Mystery Ebay amp purchase
  192. Triode versus Pentode
  193. Supply, Full wave, choke on center tap?
  194. Ping SY
  195. Interstage Transformer Loading
  196. Tube Amplifier Kit?
  197. Easy inexpensive tube buffer ideas?
  198. Running tubes at their maximum dissipation.
  199. 6BM8/ Heathkkit S.88 Has only 3 and 15 ohm O/P..?
  200. DHT drivers - shootout
  201. Dynaco MK IV
  202. Fender Bassman- AB165 capacitor toss up
  203. KT88 , Genalex or Chinese ? Help !!!
  204. output tubes for stereo 70
  205. 6H6P for Sonic Frontiers Line 2?
  206. Too much distortion
  207. Servo assisted CF LCR-filter
  208. 6v 5AR4?
  209. 845 Grid stopper value
  210. Chokes, sizing and ringing?
  211. Long tail 6sl7 for Dynaco stereo 70?
  212. Triode Fabrication Video
  213. Funny Hi-Fi quote
  214. 300B PP ph.split
  215. extend tube sockets, or tube "plugs"?
  216. Klipsch Promedia GMX A-2.1 + Decware Taboo
  217. So any ideas for a car type amp?
  218. Cathode Biasing a 6L6 quartet power stage
  219. Calling All Mullard 5-20 Aficionados
  220. Modelling a DC filament supply in PSU Designer II
  221. Guitar Preamp Tube combination
  222. 12AX7 Preamp NOOB Question
  223. Adding aux input on a tube console
  224. one safety question
  225. E1148,CV6-How do you distinguish the anode/grid caps?
  226. dual value motor run caps
  227. Strange DC choke behavior
  228. Subwoofer out question.
  229. Tube 6N3 use pre for ChipAmp
  230. Hammond 1650W
  231. separating PSU for preamp
  232. sca-35
  233. A 6.3V regulator delivering 2.8A...?
  234. 6K:8 25W SE OPT, now what tube should I use?
  235. EL84 fixed bias PP Triode
  236. Tube Amp Kit Suggestions
  237. TT21 Vs KT88
  238. One-Electron PRC chokes as PS input choke?
  239. Magnavox 135BB
  240. Is there much point in tube preamps? (This isn't a troll)
  241. How does one determine saturation point of triode or pentode
  242. Help - 807 Technical problem
  243. woooohooo!!! 3 working el84 SEs
  244. westinghouse model 80 radio - eval for parts?
  245. Bogen J130 PA schematic
  246. Marshall JMP-1 high voltage value ??
  247. Better Cap = Better Sound?
  248. Pilot SA 260 bias
  249. 12AX7 gain stage output impedance
  250. Small 1W hifi amp

Content Relevant URLs by vBSEO 3.3.2