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. Isolation Transformer Question
  2. Glow tubes as series regs ?
  3. Glow tube shunt reg stability
  4. Some interesting reading about Sweep tubes
  5. What is this?
  6. What's A "Timber bulb"?
  7. aikido/807PSE and local feedback
  8. Repairing paper in oil caps.
  9. Optoisolator compressor ideas
  10. Airgap for filament transformer ?
  11. Tube stereo for E 60 including TDA1541 cd player
  12. Bad Boy amplifier Tubelab.com style
  13. is there a typo in the Tubelab SE schematic?
  14. Theta Amp problem
  15. 12A_7 vs 6SN7EH vs EF86?
  16. Mixing two channels in the preamp or at the phase splitter?
  17. amp input cap for crossover
  18. Audio Transformer/Cathode Feedback Info
  19. Determining cathode resistor
  20. Tube Pin Schematic Question
  21. Simple SE blowing fuses
  22. Best looking tube?
  23. Identifying Stancor Power transformers
  24. HT crowbar
  25. "Bevois Valley" in triode, what to do with the feedback?
  26. Purple Glow
  27. When to use a grid leak resistor?
  28. Mcintosh MA 2275
  29. Marshall 18W clone (sort of)
  30. Cathode feedback on the simple SE
  31. Blowing output transformer
  32. Kenwood KW-44 hum
  33. Tube system for classical audio
  34. Novel method to reduce filament hum in SE Amp?
  35. Help with 6SN7 w/ CCS
  36. Fisher X-101-D
  37. best tube (not amp)
  38. Simple SE Cap and layout questions???
  39. Simple SE - one channel intermittent problem
  40. ML4/ML6 British triode
  41. transformer rubbish
  42. Identifying output transformer leads
  43. Grounding Aikido and F4
  44. Determining ratings for unknown Power Transformers
  45. Tube heaven - or tube hell?
  46. Fender "Evil Twin" Hi/Low output = same level
  47. Sub amp/speaker to compliment S5 electronics K 12 G tube amp
  48. Troubleshooting hum in 12b4 preamp.. finally almost done!!
  49. SE cathode bias question
  50. k-12G / K-12M with 4 Ohm speakers
  51. About united electron tube
  52. 6c33c-b & 6c33c-v
  53. would like a substitute for Sowter 3575-C
  54. My first tube project WIP
  55. Tube rectifiede +- supply...
  56. the buzzing from amplifiers
  57. MC prepre with submini tubes
  58. 12AU7 Preamp build
  59. Bias/ Plate dissipation question
  60. Has anyone screen driven an EL84?
  61. tube pre amp for phone stage
  62. 6080 se cathode follower
  63. Amplifier suggestions for EPA OPT please
  64. Which tube? How much power can it produce?
  65. Graaf GM20 mods - help!
  66. xpp amplifier question
  67. 520v in PP UL...?
  68. New ST-70 blowing 3 amp slow blow fuse
  69. Was There a Heathkit W-1M or WM?
  70. 8ohm speakers 4ohm tap
  71. Upgrading the Conrad Johnson Premier Fourteen preamp
  72. Noob's first build !!!!
  73. 6sf5gt ??
  74. Measuring technics practical, the allaround reference method?
  75. 2A3 or KT88 ?
  76. What to build with these tubes?
  77. line output transformer help
  78. 6L6GC Options and Flavors
  79. Chinese Buffer Amp, Useful?
  80. 6C33C SE Amp - Ideas on refinement?
  81. 6BM8 Equivalent
  82. Newbie wants to rebuild a Stromberg Carlson ASR-433
  83. RH84 questions
  84. VTL Manley 807 push pull ultra linear
  85. Seeking Pentode-Triode with a 12AX7 half...
  86. Modern tube amplifier designs?
  87. 6n6p transformer output impedance
  88. 814 triode curves
  89. Bias Question
  90. Building a variac
  91. Is my 300B tube dead?
  92. One channel quiet - any bright ideas?
  93. Saw them coming (stupid prices on ebay)
  94. EL36/6CM5 pp design critique
  95. Driving Raven R2 with tubes
  96. Does Anyone Know What This Is?
  97. Need help with tubes problem...
  98. 6V6GT push pull NFB resistor value
  99. Power cord for single ended triode
  100. Virtual chokes
  101. 12AU7 based preamp hums when output cable is touched!
  102. Possible Test equipment find.
  103. 6ak5-45
  104. Using coax for signal wiring?
  105. Chassis Plate Finish
  106. Schade84
  107. Fisher 800c selenium rectifier pictures
  108. Bass amp from spare parts
  109. Looking for tips on operating points for tubes in anode follower ...
  110. Transformer in the cathodes ??
  111. Fisher 800c static,crackle
  112. 19J6 replacement
  113. Newbie tube buffer kit
  114. Simple se parts, all needed?
  115. Any recommendations for tube for vari-mu compressor?
  116. AMC CVT 3030 Bias Procedure
  117. Cascading volumes on a 5C3 amp
  118. Anyone used a edcor cxpp100-ms-5k OT
  119. Noisy gain boost
  120. Troubleshooting hum issues with batteries?
  121. Rectifying Heater Supply
  122. tube heater over voltage!please help...
  123. rca 829b bias ? Audioromy 828
  124. 10k winding, 100k pot
  125. What is the definition of a 'good tube'?
  126. 3-stage DC-coupled Ampl
  127. 1946 Philco Tube Receiver
  128. A New Source for James Transformers
  129. Edcor Site Down? Gone? anyone know anything?
  130. Please suggest practical DIY uses for these BIG oil caps
  131. How to calculate DRD amps..
  132. PL-519 Tube - Tell me more please...
  133. Need ideas for amp with 2A3, One Electron UBT-3
  134. Favourites discrete brand for tube amp
  135. Pharmicia EPS500/400 Power supply - tube use
  136. Black Art Audio
  137. 12AX7/12BH7 Hammond Tube Preamp Project
  138. Dampen transformer endbells?
  139. Do I have DC on my AC line?
  140. GM-70 cathode feed SE amplifier
  141. Rogers cadet mk 2 newbie project experience required
  142. Mcintosh amps transformer rewinding, help needed please!
  143. Using an output tranny from a stereo for a single-ended amplifier ?
  144. 6336A Single Ended.
  145. UA 175 Urei 175
  146. Morgan Jones 5842 RIAA
  147. Question about current ratings of Hammond 300 series power transformers.
  148. Cathode Windings
  149. Phono stage for 12B4 amp [from previous thread]
  150. Looking for schematic of 26 WOT Preamp
  151. Transformer Lam Questions
  152. Schottky diode bias
  153. ACROSOUND direct-couple EL84 amplifier question
  154. RH807 CCS loaded
  155. Audio Note Kit 1 PSU question
  156. B&K 500 Tube Tester Calibration
  157. New kt88's or 6550
  158. Bias Supply resistors
  159. Incredible source for used transformers and parts!
  160. Reclaimed Hammond H100 PSU's
  161. Arc Vt-60 Cloned :-)
  162. First Time Pre Amp Build
  163. Tubelab SE 300B low level hum, help
  164. 845 - Progress so far
  165. Nube challange12AX7 to drive 6C4
  166. 7th harmonic distortion from PP pentodes depends on bias?
  167. West Output Transformers?
  168. Help me design my DAC/Line Preamp.
  169. Hybrid preamp tube problemHi,
  170. sweept tubes for simple Se recommendation?
  171. Building RH84 SE tube amp.
  172. Question - THD Measrement/Spectrum Analyzis
  173. What to do with TMC tube radio gear?
  174. Easy & Safe & Good sounding gainclone tube buffer
  175. Compactron (31AL10) Head-Scratcher
  176. blackfacing a twin
  177. What cable do you use from input socket to volume pot
  178. problem with 12AE6A buffer
  179. Adding a master volume to a Fender 5C3 Deluxe
  180. Parafeed dc blocking/coupling cap help
  181. Funky Looking 15DQ8s
  182. 12SN7 vs 7N7 bs 6SN7
  183. Correct Pins For EL84 Triode Strap
  184. Dimensions for anode cap sizes?
  185. Mains transformer help needed please
  186. Tone Stack Challenge
  187. Aikido 6SN7 input 5687 output
  188. FRANK"S 6SN7 preamp/linestage
  189. Pentode grid question...
  190. Channel Switching
  191. Hybrid fullwave rectifier
  192. 300B stereo amp project help
  193. Another Bogen CHB 100 Conversion
  194. EdcorEurope
  195. Can AC wires induce hum in output transformers?
  196. Would you use a 4 ohm tap with these speakers?
  197. Changing grid leak bias preamp to cathode bias
  198. 304tl se amp
  199. 5687 Srpp
  200. Dumb Question Brain is numb today!
  201. What a Deal!
  202. Electrons on Parade
  203. Roll Chart for 6DJ8/6922/7308 on Philco 9100 help
  204. MeiXing MC-805AA biasing
  205. whats a good diy tube preamp kit
  206. Electrons on Parade
  207. SimpleSE parts list
  208. Matched tubes or not matched
  209. wood gnomes really do live in france
  210. Pathos Classic one
  211. A Uk supplier of valve amp kits
  212. Detached getter?
  213. 12B4 Line Stage Amp
  214. How do I control volume on Dynaco ST-70?
  215. A few questions from a total novice.
  216. RCA preamp modification
  217. Bogen Challenger CH8 conversion...newb needs help!
  218. 6AU6A - Micropowered tube amp
  219. Yet another DHT filament supply
  220. where to find 5998 ?
  221. Mcintosh MA 2275 Schematic Required
  222. Help on sonic frontier sf line 1 preamp
  223. Voice of Music Reel-Reel schematic needed
  224. Old radio tubes
  225. 6KN6-PP-guitar slave
  226. Alpha Pots
  227. Bleeders values and ratings
  228. Tube audio circuit analysis
  229. Audio Research LS15 circuit and description
  230. OPT Trafo
  231. OPT test data?
  232. looking for the top 6080 amp schematics
  233. vu meter
  234. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  235. First Amp Build....!
  236. Will This work?
  237. Simple SE hookup wiring
  238. building a lit up tube display
  239. Push-Pull 6CL5's
  240. 2A3 power adjustments by channel
  241. Dead 12ax7 gain stage - Help...
  242. Best 300B amp schematics
  243. Stuck on Standby
  244. Newbee wants to learn about tube amps, etc...
  245. Recent Ad on Craig's List
  246. Pitfalls to warmup delay in DC coupled multiple railed amps?
  247. jan 6832 sub miniature tube
  248. Anti-Triode SEPP, how to do best?
  249. Some Help with Feedback Please!
  250. Cary 300SEI, likely capacitor failure

Content Relevant URLs by vBSEO 3.3.2