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

  1. Studer 52
  2. Safety ground question
  3. Old PS questions (EL34 replacement), and any Aus people know BWD?
  4. Darling 1626 amp
  5. Blackheart 5 watt
  6. What is this tube amp
  7. Extry, Extry, Blind Squirrel Finds Nut -sequence
  8. Why is distortion harmonic?
  9. Source for OPT
  10. EL34 to RL12P35 converting
  11. calculating total current draw
  12. Allied Radio (Knight) KA-55 schematic
  13. 6F6G Amplifier
  14. good book/article about using oscilloscopes?
  15. how to attach photos
  16. Is 450V the max of triode strapped 6l6gc
  17. Separate power supply - Umbilical Cord
  18. tube amp being weird -- any ideas
  19. need to discharge psu safely
  20. Jadis DA7/defy power amplifier mods
  21. 5.3v on 6SN7 filament?
  22. The Valve Wizard
  23. Mercury vapor rectifier tube question
  24. An Indiana Yankee in Putin's court.
  25. Switching over to a fixed bias
  26. Dynamic load line analysis using music and speaker load
  27. Capacitance in PSU
  28. preamp line ctt
  29. Genalex KT-88 reissue
  30. Combine EF80 with EL84
  31. 2A3 maximum plate voltage
  32. Amplifier Response Stability & All That.
  33. 100k linear pots, any idea?
  34. 6550, 6L6, or 6V6??
  35. grid-stopper resistor
  36. cathode bypass caps suggestions please for newbie
  37. Need Schematic-H&K B.A.T.T.
  38. 6EJ7 phono preamp?
  39. Impressions of the Ella, a pp EL34
  40. 30L15 / PCC805 - What can I use them for?
  41. Ultra Cheap transformers?
  42. Push-pull output impedance
  43. Tube amp cost
  44. 830b
  45. Leak Tl/12+
  46. Toroid Trafo as choke
  47. in search of a 3c33 dual triode.....
  48. Question about MiniBlok II Schematic
  49. Wavebourn Alligator amplifier
  50. Best Tube Testers?
  51. Rusky version EF86
  52. Melos SHA Gold Issue
  53. Tubelab Simple SE & Edcor
  54. Erratic tube activity
  55. Bogen Front End
  56. Maybe a Ruskie
  57. Another kind of hybrid
  58. Output impedance
  59. GU29 Amp. Schematic - Audioromy or similar
  60. Power On Indicator Light
  61. Newbie Aikido power supply question
  62. Se output transformer question
  63. Aikido hum
  64. Output transformer replacement... Worth it?
  65. Almarro A205A schematic
  66. Valves World question
  67. diodes before plate load
  68. power tubes..newbie question.
  69. Need Help 12BH7 Tube test.
  70. Tube Virgin
  71. Chassis layout help
  72. Maybe this is why 300b's dont last as long
  73. High-voltage bench power supply
  74. Ebay Tube amp buy disaster
  75. HK cheap SE OTPs...hmmm
  76. Modded ST70 Done
  77. bad buzz in an EL34 amp
  78. Another radio->Gtr amp mod question
  79. yaoin
  80. What is the safest method to plot characteristic curves without ruining the tubes
  81. Screen grid zeners; which?
  82. Another one I don't get
  83. 6BG6GA adapter instructions needed
  84. got an EC8020
  85. Identifying these Valvos.
  86. Converting tube guitar amp to Hi-Fi amp
  87. 21kW audio power amp?
  88. Quicksilver conversion
  89. DC PSU for both 6.3vdc and 5vdc from one 6.3vac transformer?
  90. Hammond Transformers in Montreal/Canada
  91. Can't find data for 8624
  92. Any advice on modifying a 2A3 SET amp to parafeed?
  93. Output impedance for non published PP configuration
  94. Grid stopper resistor required (KT66)?
  95. Ask Jan First OPTs
  96. For what are high mu triodes still useful?
  97. CCa "low noise"?
  98. Upgrading my Audio Research VT 130 SE Tube amp
  99. 100ma FSD voltmeter
  100. Conqueror schematic
  101. Bassman 135 OT
  102. Ground reference
  103. Overdriven Capacitor?
  104. Tone Controls?
  105. My first "from scratch" design, SE KT88..........
  106. OPTs of questionable utility
  107. 6336 as a Rectifier
  108. tube power supply
  109. Anyone read Russian?
  110. PSU - dropping resistors?
  111. pre-amp design, just curious about your thoughts here.
  112. Using isolation transformer as a PSU transformer???
  113. KT66 loosing its getter
  114. Mullard schematic?
  115. Mikale Abdellah SE KT88 B+ voltage?
  116. Layout software
  117. Does anyone have any schematics for a parafeed SET amp?
  118. music angel kt88
  119. CB radio
  120. The end of the 300b Dream?
  121. Voltage divider to reduce 6v dc to 2vdc
  122. oil injected rca cables?
  123. Modification.....
  124. CHOKY'S EC8010 preamp
  125. Using a Grid Choke On the 2A3 when the input/driver is a Pentode?
  126. tube checker
  127. 300B tube going dead after a few months
  128. KT88 se build NO GAIN please help
  129. mengyue mini valve amplifier
  130. Preamp suggest, please.
  131. Problem: Severe power transformer and choke vibration
  132. Amp Hack schematic questions
  133. This circuit ok?
  134. Tube ID anyone?
  135. Posted new books and data
  136. The sound of a failing tube rectifier?
  137. Proyect with PL36 and N2P (Russian ECC83)
  138. 300b LTspice model with grid current?
  139. Tri-amp using 2a3 SETs
  140. TentLabs Directly Heated Tubes Supply
  141. Bevois Valley Design Question
  142. Kofi Annan in: "Oscillation Blues"
  143. Common mode choke model
  144. UTC 20 Watt Amp - Any Experience?
  145. 6cz5s for EL84s
  146. The 120Hz Blues...
  147. Amplitrex AT-1000 Tube Tester
  148. audio amp. versus guitar amp
  149. Grounding points....
  150. Cap values for CLC filter
  151. Tube glows red hot, blows fuse
  152. Independent Bias Adjust for Each Tube?
  153. Mesa Boogie Maverick schematic any1?
  154. KT-88 from a book
  155. Modelling PSU?!
  156. DD amp for ESLs...
  157. Today's tube manufacters, best is?
  158. Advice on hum in phono stage
  159. Cathode follower & SRPP q
  160. FREDs on PSU
  161. Hybrid Shenanigans
  162. How hard is it to rewire my amp from 6av6/6cg7 to just 12ax7 types?
  163. 5AR4 heaters
  164. Bad Grounding,or Cheap Pot??
  165. Tube Construction Handbook
  166. WE 350: dry bass?
  167. What size capacitor I use for a 2A3 or 300B cathode bypass?
  168. Need helps with building poweramp stage
  169. Noah's Ark for electron tubes
  170. Fixed Bias suggestions
  171. OD3/OA3 voltage regulation design
  172. DHT filament heating with SMPS + CCS
  173. Using SE transformers in a PP circuit
  174. EDCOR Releases Line of Guitar OPT's
  175. Schematic: Audio Innovations, The first audio amplifier
  176. Restoring 1948 Gibson GA-30 guitar amp(tube)
  177. Now THIS is tube DIY to the extreme
  178. Dynaco mkIII A431 op's
  179. Alternative to Power Transformer
  180. Help with e180f and ixys current reg
  181. Building a "Hiwatt" tube Bass Amp
  182. help! no power, im lost
  183. Jerrycan amp (RH34SE)
  184. 12B4 Updates
  185. www.diykits.com.hk stepped volume control ... any good?
  186. Hammond L-100 conversion
  187. Anyone have the ASL model MGSI15 schematic ?
  188. Replacement for single-winding OPT?
  189. Buzz in new amp...
  190. 48V B+ linestage
  191. Line-Stage Opinion Question
  192. Audio applications of sweep tubes and ratings
  193. Differences in structure between parafeed ad gapped OPTs
  194. Take a look and let me know what you think
  195. Printed circuit board designing?
  196. SimpleSE - Switches, Wire, IEC, Jacks
  197. KT90 why this ?
  198. Break in
  199. Choke Design - Basic Questions
  200. Is this a good interstage transformer?
  201. Best tubes for bass?
  202. Tube amps & MP3's
  203. TRIO 15Hz Oscilloscope CS-1560A
  204. Newbie Needs Help Choosing A Kit
  205. I need a negative supply rail--but how?
  206. Strange Hum
  207. VR Tubes
  208. Understanding plate loads
  209. How do you know if your preamp has inverted the phase?
  210. Bogen J130 PA to guitar amp?
  211. 6P1 Equivalent
  212. EL34 and KT88??? 6550?
  213. one stage DHT amp
  214. 6V6 Output?
  215. Lineup of four: Help me choose?! OPT for SE
  216. 6DJ8 / 6922 tube?
  217. bias pilot sa 260
  218. Using vintage OPTs as PSU chokes ?
  219. crystal palace driver stage by morgan jones
  220. Why Are 12A*7 Tubes So Bad?
  221. Mikael's KT-88 question
  222. OPT for PSE 6c33c tubes
  223. 24v aikido distortion
  224. ED8000 SE or Parafeed?
  225. GZ33 Rectifier drop?
  226. counterpoint sa11
  227. High voltage problem
  228. Wire gauges
  229. Simple headphones out
  230. Mull(ard)ing over valve choice...
  231. Turning on B+ without heaters with aikido
  232. New Project - Plitron 4006
  233. Where in Brisbane can I get a transformer for my Chinese amp
  234. Etching or silkscreening chassis?
  235. can please someone explain this to me?
  236. A VCCS tube amp, how?
  237. How to add a subwoofer out?
  238. Kind of cool check it out
  239. new opt for s5 k16ls?
  240. Wanted Arkay SP6, Knight 83YX768 schematics
  241. toggle switch for input selector
  242. Tube Rectifier protection
  243. Quick Q on Max G2/Screen Volts..
  244. Cathodyne follower? :)
  245. Real music power
  246. Tube info needed
  247. Petrol Head Amp
  248. Help Needed- Replacement Volume Pot For a Fisher KX100
  249. What are these caps good for?
  250. 300B Set amp some variations

Content Relevant URLs by vBSEO 3.3.2