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 99 100 101 102 103 104 105 106

  1. GIBSON GA-79RVT Stereo Cab plans or dims
  2. strange noises from ECL86 amp
  3. Retouching knicks and scratches on chassis
  4. MingDa MC-7R noise and gain
  5. start-up sequence of Aikido preamp / SS power amp
  6. Driving a 6B4G with a single 5687/7044/E182CC?
  7. phono stage with different replay equalization?
  8. Lprimary variation in pair old opts
  9. 8417 triode connected tube data
  10. 5763 = El84?
  11. 5687 to 6L6 SE ?
  12. TubeCad Feedforward Shunt Regulator
  13. "12EA6" Pentode !
  14. Marshall EL34-100/100
  15. short-circuit rectifier EZ80 !
  16. Good radio tube:6AQ5/6005
  17. Replaced pulled tubes with a resistor?
  18. Choke input PSU, drawbacks?
  19. Heater PS alternative / Redux
  20. Gold or silver dress-up rings for tube amps.
  21. 50C5 conversion
  22. Sa-5.1 blow fuse
  23. Hum problem of preamp
  24. Chassis ground blows fuse
  25. 7193 (2c22) preamp buzz/hum
  26. Se Opt
  27. Does anhone use those switching power supply for the heaters?
  28. Tube Minidoc, featuring New York Noise
  29. Help Choosing A Sowter Trans For My DAC?
  30. fisher 800c clipping at ultra low volume
  31. "audiodigit" tubalizer & tubepre original schematic
  32. Dht Guitar Amps
  33. rating of series caps
  34. F704
  35. tube socket PCB library or dimensions
  36. motorboating
  37. 6AN8 Triode connection + EL 84 PP
  38. Please help amend 6AS7PP circuit
  39. El84 Pp
  40. 6V6 Ultralinear
  41. Dear Moderators
  42. 845 se
  43. Bell 2122-B integrated amp - tube suggestions
  44. Wirewound pot for Rk
  45. KT88/90 F2011 Schematic
  46. United Electric 967
  47. Scott 222c mods...?
  48. Switching supply for 300B filaments
  49. ECF80/6BL8
  50. 24v tube buffer & line stage schematic
  51. Vintage gear hunting
  52. Seperate PSU Transformers? Filament Supplys?
  53. 828 is better
  54. Hum on a choke loaded stage
  55. SE Transformer question
  56. Design question - How to make amp porn visible?
  57. Leak Stereo 20 - Johan's Square Wave Theory
  58. K-12G First Time Build
  59. Vishay vt52-55 resistors in a tube amp
  60. EL84 Push-Pull ccs bias
  61. Eight 807's in Push Pull?
  62. Working with Current O/P DAC Chips
  63. Unison research Preludio schematic
  64. Rewinding Power transformer
  65. Information needed on RCA SPECIAL RED TUBES
  66. Score?
  67. Herron phono
  68. tube preamp + SS power amp.
  69. Puzzler
  70. HI-Fi 6p13p
  71. Resistor values
  72. To chassies SE amp,PSU question
  73. Grounding & board Layout questions
  74. Look for a beefy driver tube.
  75. ECC81
  76. 5687 v.s. 6922 preamp/xover
  77. amorphous iron core good or not
  78. Pre-Amp
  79. submini tube preamp is a success
  80. Roll off frequency.
  81. Materials Technology for Electron Tubes by Walter H. Kohl
  82. Grundig TK 46 manual
  83. I'm anti-expensive audio parts but man, a good capacitor can make a difference
  84. How to determine a tube is shorted?
  85. Power supply problem
  86. SS power trans for tube experiments
  87. how to set output current on G Pimm's CCS circuit?
  88. Tube testing questions
  89. Push Pull Output Transformer wiring problem
  90. shunt regulator using VR tubes (with ccs like g pimm) and circuit load
  91. Stepped attenuators vs. Carbon pots
  92. hum/buzz with pot all the way up
  93. Cap and resistor types in guitar tube amp
  94. VacuTrace ... In Chicago?
  95. Lifesaver question on earthing
  96. Affordable, but good attenuators?
  97. Gu50 Set ?
  98. mounting an EL34 upside-down
  99. Direct coupled PP 2a3 amp - maths needed!!
  100. My 1st scratch build complete......
  101. Very Basic EL84 or EL34 DIY Amp
  102. Curcio Daniel Preamp Mods?
  103. Tube designs: 45 driving 45/2a3/300b?
  104. Adding secondary of output transformer into cathodes of output stage ? Eico ST-70
  105. Marantz 8 B : Output Transformer
  106. has anyone used a fan on their project?
  107. Audio Research SP12 heater arrangement
  108. tv damper diodes
  109. volume pot quite close to a tube - is this okay?
  110. UTC s42 special series
  111. 6H30P preamp schematics
  112. Digital potentiometer corrupt tube amps
  113. Alternative filament supply for 01A line stage
  114. Lamination Size
  115. Yaqin MC10L and KT88
  116. Help me read tube data sheets
  117. Quick Question (Driving 6L6GC's)
  118. Cause for concern -- scorch mark in tube
  119. why not 10k pot
  120. Dynaco Stereo 70 Output Transformer
  121. 6CJ3 rectifier or 6D22S rectifier
  122. Back-to-Back trannies
  123. Spring Reverb transformer
  124. Hamfest in Toronto area next weekend
  125. st70 bass response
  126. Triode "Champ" transformer v Edcor
  127. Low vs High aka Series vs Parallel Filaments
  128. Bogen monster MO200A schematic
  129. The Great Tempe Audio Shootout
  130. opinions on this p-p kt88
  131. Any XLR Tube Buffer Plans?
  132. Mystery transformers
  133. I need help with my next project
  134. A thought on Cathode feedback
  135. EL34 SE, direct coupled
  136. Ccs
  137. Hybrid amp: ECH83 + TDA2030A
  138. Leaving tube preamp always powered on.
  139. Variable 6922 heater to cathode voltage limit...?
  140. Is this risky?
  141. What to do with some WE tubes and others
  142. 6B4G SRPP
  143. pentode in triode mode SE vs a DHT SE like 2a3/300b
  144. dynakit decware bottlehead ... which to pick
  145. 6JC6 triode strapped?
  146. Searching for Raw Turrets
  147. Help.. EZ81 power supply diagram
  148. Ear 8l6
  149. Bogen H-30 guitar mod
  150. Voltage measurements from a blown 5AR4 vs. good 5Y3
  151. Sanity check on a 2A3 ultrapath with Pentode driver
  152. Star ground with dissimilar metals: concern?
  153. 5AR4 marked as 5V4GA?
  154. Calculating cathode bypass cap.
  155. Please need help! TUBE BIAS PROBE
  156. Aikido Phono Stage
  157. Using an El84 as a driver
  158. Transfromer value of this 300B circuit
  159. Chassis Layout & PS questions
  160. help needed for 1st DIY tube amp - Sakuma 845 SE
  161. Ideas for 4v filament triodes/pentodes
  162. Comments on Power Amp Viability
  163. Balanced active crossover advice
  164. The Tube Center
  165. Help1 with a 3 channel 2a3 amplifier
  166. volume control hum/noise
  167. PS choke magnetic induction
  168. Circlotron power supply question
  169. Autoformer as choke?
  170. E182CC
  171. Fender Hotrod Deville 212
  172. Grundig Fine Arts OTL Amplifier
  173. Damper diodes, 6ax4 and or 6w4?
  174. Knight 333 / Pioneer SX 34B info needed.
  175. Gargantuan Linestage Output Capacitors
  176. Quad II Restoration
  177. Help identifying a tube.
  178. Tube filaments in series?
  179. Design of Resonant Input Choke PSU
  180. Dissimilar triode
  181. How important is the quality of a triode used as a cathode follower
  182. EL34B tubes
  183. Why not so common to split dual triodes between channels?
  184. In search of power supply schematic for phono preamp
  185. General Electric vs Toshiba 6L6's
  186. Audio Research Dual 75 Capacitor Source?
  187. Choosing A Cathode bypass capacitor
  188. 12AU7 SRPP buffer suggestions
  189. Pentode/triode switch question
  190. Lundahll 1669A Secondary voltage???
  191. Substituting tube rectifiers by silicon
  192. newbie question: is the connection to the output xformer somewhat odd?
  193. All quiet on the SN front - about darned time!
  194. Estimating power output
  195. Looking for KT88 Amplifier Schematic by Mikael Abdellah
  196. Comments on passive pre and cables
  197. curvecaptor
  198. 6b4g pushpull build!newbie
  199. Need help; I have "dog leg" shaped waveform on my amp
  200. Output Transformer Question?
  201. Urgent OT HELP needed ASAP please
  202. Questions on Triode Strapping
  203. Morgan Jones BALANCED?
  204. What are your RFI precautions?
  205. Pentodes without cathodes?
  206. help me
  207. Good quality 6600 CT OT
  208. Local Hamfest score!!!
  209. Unknown Transformer
  210. S5 11g help
  211. 6SN7 pre-amp
  212. These tube can be use for amplifier
  213. Any pitfalls to choke derived CT?
  214. Audio Research D76A bias adjustment
  215. I meet Mr. Morgan Jones
  216. st70 electrolytic caps
  217. Thank you SY
  218. el84 1 channel stopped working help
  219. Help! Weak Bass!
  220. never say never - 300B amps...
  221. 6aq5 Screen resistor?
  222. L. Tatro farm radios from 1930's.
  223. Published/DIY ultra-low THD designs?
  224. EL84 SE auto bias
  225. Kofi Annan in: "Oscillatin' in the Bevois Valley'"
  226. Subwoofer connections
  227. 6/30L2 - What to do with them ?
  228. PIONEER SA-810 Tube Amp Schematics
  229. EF86 Gm
  230. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  231. Aria 6P14 makeover.
  232. switch for paralelled tube
  233. Curvecaptor with pentodes??
  234. Ground point for HF decoupling cap?
  235. Cancelling Harmonics
  236. Quiet Tube
  237. LM385 Adjustable voltage ref. diode as LED bias?
  238. Tubed Expression Pedal
  239. Any spice models around for AA5-esque battery tubes?
  240. Where to connect shielding
  241. Bogen K15 convert to guitar amp
  242. Help 805 As that the friend makes to straighten even gallbladder machine
  243. studiogear of the beatles
  244. 6AK5 Triode Curves
  245. twisted pair signal, source selector and ground buss???
  246. Tiny Amplifiers
  247. A newly aquired Hum
  248. many jan tubes
  249. is this the correct way of adding a volume control?
  250. Basic DIY Valve Phono Stage

Content Relevant URLs by vBSEO 3.3.2