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 99 100 101 102 103 104 105

  1. strange noises from ECL86 amp
  2. Retouching knicks and scratches on chassis
  3. MingDa MC-7R noise and gain
  4. start-up sequence of Aikido preamp / SS power amp
  5. Driving a 6B4G with a single 5687/7044/E182CC?
  6. phono stage with different replay equalization?
  7. Lprimary variation in pair old opts
  8. 8417 triode connected tube data
  9. 5763 = El84?
  10. 5687 to 6L6 SE ?
  11. TubeCad Feedforward Shunt Regulator
  12. "12EA6" Pentode !
  13. short-circuit rectifier EZ80 !
  14. Good radio tube:6AQ5/6005
  15. Replaced pulled tubes with a resistor?
  16. Choke input PSU, drawbacks?
  17. Heater PS alternative / Redux
  18. Gold or silver dress-up rings for tube amps.
  19. 50C5 conversion
  20. Sa-5.1 blow fuse
  21. Hum problem of preamp
  22. Chassis ground blows fuse
  23. 7193 (2c22) preamp buzz/hum
  24. Se Opt
  25. Does anhone use those switching power supply for the heaters?
  26. Tube Minidoc, featuring New York Noise
  27. Help Choosing A Sowter Trans For My DAC?
  28. fisher 800c clipping at ultra low volume
  29. "audiodigit" tubalizer & tubepre original schematic
  30. rating of series caps
  31. F704
  32. tube socket PCB library or dimensions
  33. motorboating
  34. 6AN8 Triode connection + EL 84 PP
  35. Please help amend 6AS7PP circuit
  36. El84 Pp
  37. 6V6 Ultralinear
  38. Dear Moderators
  39. 845 se
  40. Bell 2122-B integrated amp - tube suggestions
  41. Wirewound pot for Rk
  42. KT88/90 F2011 Schematic
  43. United Electric 967
  44. Scott 222c mods...?
  45. Switching supply for 300B filaments
  46. ECF80/6BL8
  47. 24v tube buffer & line stage schematic
  48. Vintage gear hunting
  49. Seperate PSU Transformers? Filament Supplys?
  50. 828 is better
  51. Hum on a choke loaded stage
  52. SE Transformer question
  53. Design question - How to make amp porn visible?
  54. Leak Stereo 20 - Johan's Square Wave Theory
  55. K-12G First Time Build
  56. Vishay vt52-55 resistors in a tube amp
  57. EL84 Push-Pull ccs bias
  58. Eight 807's in Push Pull?
  59. Working with Current O/P DAC Chips
  60. Unison research Preludio schematic
  61. Rewinding Power transformer
  62. Information needed on RCA SPECIAL RED TUBES
  63. Score?
  64. Herron phono
  65. tube preamp + SS power amp.
  66. Puzzler
  67. HI-Fi 6p13p
  68. Resistor values
  69. To chassies SE amp,PSU question
  70. Grounding & board Layout questions
  71. Look for a beefy driver tube.
  72. ECC81
  73. 5687 v.s. 6922 preamp/xover
  74. amorphous iron core good or not
  75. Pre-Amp
  76. submini tube preamp is a success
  77. Roll off frequency.
  78. Materials Technology for Electron Tubes by Walter H. Kohl
  79. Grundig TK 46 manual
  80. I'm anti-expensive audio parts but man, a good capacitor can make a difference
  81. How to determine a tube is shorted?
  82. Power supply problem
  83. SS power trans for tube experiments
  84. how to set output current on G Pimm's CCS circuit?
  85. Tube testing questions
  86. Push Pull Output Transformer wiring problem
  87. shunt regulator using VR tubes (with ccs like g pimm) and circuit load
  88. Stepped attenuators vs. Carbon pots
  89. hum/buzz with pot all the way up
  90. VacuTrace ... In Chicago?
  91. Lifesaver question on earthing
  92. Affordable, but good attenuators?
  93. Gu50 Set ?
  94. mounting an EL34 upside-down
  95. Direct coupled PP 2a3 amp - maths needed!!
  96. My 1st scratch build complete......
  97. Very Basic EL84 or EL34 DIY Amp
  98. Curcio Daniel Preamp Mods?
  99. Tube designs: 45 driving 45/2a3/300b?
  100. Adding secondary of output transformer into cathodes of output stage ? Eico ST-70
  101. Marantz 8 B : Output Transformer
  102. has anyone used a fan on their project?
  103. Audio Research SP12 heater arrangement
  104. tv damper diodes
  105. volume pot quite close to a tube - is this okay?
  106. UTC s42 special series
  107. 6H30P preamp schematics
  108. Digital potentiometer corrupt tube amps
  109. Alternative filament supply for 01A line stage
  110. Lamination Size
  111. Yaqin MC10L and KT88
  112. Help me read tube data sheets
  113. Quick Question (Driving 6L6GC's)
  114. Cause for concern -- scorch mark in tube
  115. why not 10k pot
  116. Dynaco Stereo 70 Output Transformer
  117. 6CJ3 rectifier or 6D22S rectifier
  118. Back-to-Back trannies
  119. Spring Reverb transformer
  120. Hamfest in Toronto area next weekend
  121. st70 bass response
  122. Triode "Champ" transformer v Edcor
  123. Low vs High aka Series vs Parallel Filaments
  124. Bogen monster MO200A schematic
  125. The Great Tempe Audio Shootout
  126. opinions on this p-p kt88
  127. Any XLR Tube Buffer Plans?
  128. Mystery transformers
  129. I need help with my next project
  130. A thought on Cathode feedback
  131. EL34 SE, direct coupled
  132. Ccs
  133. Hybrid amp: ECH83 + TDA2030A
  134. Leaving tube preamp always powered on.
  135. Variable 6922 heater to cathode voltage limit...?
  136. Is this risky?
  137. What to do with some WE tubes and others
  138. 6B4G SRPP
  139. pentode in triode mode SE vs a DHT SE like 2a3/300b
  140. dynakit decware bottlehead ... which to pick
  141. 6JC6 triode strapped?
  142. Searching for Raw Turrets
  143. Help.. EZ81 power supply diagram
  144. Ear 8l6
  145. Voltage measurements from a blown 5AR4 vs. good 5Y3
  146. Sanity check on a 2A3 ultrapath with Pentode driver
  147. Star ground with dissimilar metals: concern?
  148. 5AR4 marked as 5V4GA?
  149. Calculating cathode bypass cap.
  150. Please need help! TUBE BIAS PROBE
  151. Aikido Phono Stage
  152. Using an El84 as a driver
  153. Transfromer value of this 300B circuit
  154. Chassis Layout & PS questions
  155. help needed for 1st DIY tube amp - Sakuma 845 SE
  156. Ideas for 4v filament triodes/pentodes
  157. Comments on Power Amp Viability
  158. Balanced active crossover advice
  159. The Tube Center
  160. Help1 with a 3 channel 2a3 amplifier
  161. volume control hum/noise
  162. PS choke magnetic induction
  163. Circlotron power supply question
  164. Autoformer as choke?
  165. E182CC
  166. Grundig Fine Arts OTL Amplifier
  167. Damper diodes, 6ax4 and or 6w4?
  168. Knight 333 / Pioneer SX 34B info needed.
  169. Gargantuan Linestage Output Capacitors
  170. Quad II Restoration
  171. Help identifying a tube.
  172. Tube filaments in series?
  173. Design of Resonant Input Choke PSU
  174. Dissimilar triode
  175. How important is the quality of a triode used as a cathode follower
  176. EL34B tubes
  177. Why not so common to split dual triodes between channels?
  178. In search of power supply schematic for phono preamp
  179. General Electric vs Toshiba 6L6's
  180. Audio Research Dual 75 Capacitor Source?
  181. Choosing A Cathode bypass capacitor
  182. 12AU7 SRPP buffer suggestions
  183. Pentode/triode switch question
  184. Lundahll 1669A Secondary voltage???
  185. Substituting tube rectifiers by silicon
  186. newbie question: is the connection to the output xformer somewhat odd?
  187. All quiet on the SN front - about darned time!
  188. Estimating power output
  189. Looking for KT88 Amplifier Schematic by Mikael Abdellah
  190. Comments on passive pre and cables
  191. curvecaptor
  192. 6b4g pushpull build!newbie
  193. Need help; I have "dog leg" shaped waveform on my amp
  194. Output Transformer Question?
  195. Urgent OT HELP needed ASAP please
  196. Questions on Triode Strapping
  197. Morgan Jones BALANCED?
  198. What are your RFI precautions?
  199. Pentodes without cathodes?
  200. help me
  201. Good quality 6600 CT OT
  202. Local Hamfest score!!!
  203. Unknown Transformer
  204. S5 11g help
  205. 6SN7 pre-amp
  206. These tube can be use for amplifier
  207. Any pitfalls to choke derived CT?
  208. Audio Research D76A bias adjustment
  209. I meet Mr. Morgan Jones
  210. st70 electrolytic caps
  211. Thank you SY
  212. el84 1 channel stopped working help
  213. Help! Weak Bass!
  214. never say never - 300B amps...
  215. 6aq5 Screen resistor?
  216. L. Tatro farm radios from 1930's.
  217. Published/DIY ultra-low THD designs?
  218. EL84 SE auto bias
  219. Kofi Annan in: "Oscillatin' in the Bevois Valley'"
  220. Subwoofer connections
  221. 6/30L2 - What to do with them ?
  222. PIONEER SA-810 Tube Amp Schematics
  223. EF86 Gm
  224. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  225. Aria 6P14 makeover.
  226. switch for paralelled tube
  227. Curvecaptor with pentodes??
  228. Ground point for HF decoupling cap?
  229. Cancelling Harmonics
  230. Quiet Tube
  231. LM385 Adjustable voltage ref. diode as LED bias?
  232. Tubed Expression Pedal
  233. Any spice models around for AA5-esque battery tubes?
  234. Where to connect shielding
  235. Help 805 As that the friend makes to straighten even gallbladder machine
  236. studiogear of the beatles
  237. 6AK5 Triode Curves
  238. twisted pair signal, source selector and ground buss???
  239. Tiny Amplifiers
  240. A newly aquired Hum
  241. many jan tubes
  242. is this the correct way of adding a volume control?
  243. Basic DIY Valve Phono Stage
  244. 5879 Experience?
  245. personal jobs
  246. Wanted Triode strapped curves for pentode of ECL82.
  247. source selector / volume hum in Aikido
  248. DHTs and Cathode Bias
  249. Best SET driver stage with lots of B+?
  250. Tube Library Pspice error

Content Relevant URLs by vBSEO 3.3.2