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

  1. Father, I abused my Leak S/20
  2. 6688/E180F line stage?
  3. Variable feedback to enhance damping factor at low frequency
  4. Need assistance with picking the right Edcor audio transformer
  5. Critique my first design
  6. Biamping, phase of output?
  7. Ground star
  8. op-points for 27 pre...?
  9. Opinions/Experience of Toroidal valve amps
  10. hum, no way to get rid of it
  11. How to adjust my circuit for frequency response?
  12. Input Tubes?
  13. 6BG6 = 6L6GC with top cap - cheap!
  14. Maida Regulators Redux
  15. ground of DC bias supply
  16. does anyone the website for yaqin/mr. liung/music angel amps?
  17. plate load ccs ala gary p question
  18. Books for newbe
  19. 6AS7 OTL
  20. n00b phono preamp troubleshooting..
  21. TubelabSE - Anyone built?
  22. any example of SE designs using GM70?
  23. Shunt regulator question
  24. Any RH807 builders?
  25. Recycle an Eico HFT-90 for a preamp
  26. EL84 PP output transformer for 6L6 PP class A
  27. toroid psu, weird results...
  28. Squeaky Noise in ARC Dual 75
  29. EL84 mod questions
  30. Measuring DC at preamp output
  31. Is Northern Electric the NEW W.E.?
  32. Burnt Woodside STA35 valve amp... Help!
  33. My tube preamplifier project
  34. Ponderings on hybrid 300B
  35. Maida Regulator Parts
  36. anyone familiar with the 211/vt4c circuit from Fi Primer?
  37. Calculating operating points of two DC stages
  38. Advice for retubing VTL Ichiban`s
  39. Need help
  40. Art Audio Kit on Common Ground Magazine
  41. Advice for retubing VTL Ichiban`s
  42. fisher 800c intermitant hum
  43. calling Yves....
  44. X10 Pre
  45. NEW KT66 - 6AU6 single ended
  46. mechanical hum
  47. Big valve preamp
  48. Question about biasing heater above cathode in a direct coupled circuit.
  49. center tapped choke inverter
  50. Which One Of These Tube Amps Should I Buy?
  51. Tube Info
  52. Circuit/Equipment Designer
  53. help needed with noise in phono preamp
  54. Pentode driver and IT?
  55. Plate Caps for 832A
  56. 300b advice
  57. Designs on your noob, err, tube
  58. 7788 Triode Curves
  59. EL81/6CJ6 operating point
  60. Separate cathode resistors in push pull output
  61. C3m linestage
  62. Anyone know this 13E1 design...
  63. LTP w/ positive only supply
  64. 6V6 line preamp
  65. The 6P43P russian tube is a EL84 equivalent ??
  66. Ixys IXCP10M45s IC
  67. Help with hybrid mosfet valve amp
  68. Substitute for 6gw8 in Heathkit aa-32
  69. U-Follower: Output from Cathode or Plate?
  70. Getting rid of oscillations in the preamp
  71. has anyone used the 4-125A in SE amp ?
  72. line preamp using 6SN7 instead of 12AU7
  73. 3-pong conversion for Acoustic amplifier
  74. 6v6pp design
  75. CCS Plate Load
  76. All tube voltage doubler
  77. best value/performance ECC83 on market
  78. Help needed for my preamp
  79. 6H6p cascode differential driving 2A3 PP
  80. Best phono / line preamp
  81. Point to Point
  82. gain curve questions
  83. Questions concerning Aikido Line amp
  84. Partial cathode bypass to effect a treble boost.
  85. SE bass
  86. choke orientation
  87. Musical Fidelity X-PRE schematic
  88. Circuitmaker Spice question
  89. Trouble with a paraphase PI
  90. 27 pre PS question..
  91. 6AV5 g2 driver
  92. Calculate PSU output impedance?
  93. Output stage biasing, with the driver stage
  94. tube pedal plate voltages?
  95. grounding and 12AV6 diodes
  96. 6as7 Pse
  97. Looking for datasheets
  98. Ping Albert from Canada
  99. Old Tektronix booklet
  100. fisher 800c phase inverter adjustment 2
  101. Quick Transformer Question
  102. Power supply for Heathkit
  103. low-power output tube quality
  104. Conn Caprice organ
  105. Conservation of tubes
  106. Brimar EM87
  107. Tube sockets without the ceramic carrier.
  108. SET with tube-based CCS???
  109. fisher 800c modifications
  110. Bottlehead meet.
  111. Tie cathode to heater??
  112. anyone seen it tried like this?
  113. What do people think of the SETH 2A3 PP?
  114. Very high plate voltage EL34 amp
  115. How About Bridging SE
  116. Fisher 800c Has Odd Cathode Reading
  117. What part of DIY do you LOVE?
  118. Priboi tweakers ?
  119. 5751 and 12ax7
  120. LM317 + ceramic cap Q
  121. Derive Triode Curves from Pentode Curves?
  122. 7701 distortion device?
  123. Looking for the perfect giftshop
  124. 300b
  125. Choked ripple killer for SE?
  126. Dynaco Kits
  127. Positive bias for tube CF?
  128. need help
  129. Xindak attenuation for use with Leak Stereo 20, help please
  130. Series heaters = small problem?
  131. Recommend an EL84 tube for HIFI
  132. Help - need some info on this valve amp, please
  133. H. Olson's amps
  134. 12AT7 and the Simple EL84
  135. New K-12g only one channel working
  136. Kofi Annan in: "Kofi Makes a 300b DRD... and You Get to Help!"
  137. Rauland Borg 6L6 amp Need Info
  138. Hum Noise!
  139. Tube regulator for solidstate devices
  140. 6gu7 a sub for 6cg7/6fq7?
  141. obsession sd-600 300b mono block
  142. how do you know you need matched pair?
  143. Nobu Shishido's 805 SET interstage
  144. KT88SE, turning OPT
  145. New to tubes.
  146. OB with.......well, TL Audio's iTUBE :)
  147. Matched tubes required?
  148. GU-50 output trafo
  149. Are Hammond power transformers good enough ?
  150. Transformers.
  151. Quicky - magic eye between preamp and power stage
  152. HT to rectifier
  153. 6AV5 spice model
  154. Audio Research LS2 from 110V to 220V
  155. 6V6 PP power xfrmr
  156. I think I've damaged my amp
  157. Which brands apart wyetech uses Grounded grid?
  158. Parallel vs. series filament supply - or another filament idea
  159. 6146W Power Amplifier. Please help!
  160. grommes 511a mono tube amp/reciever
  161. First phono needs QC
  162. Meixing 3008ab problems
  163. protecting a VR tube
  164. what's the purpose of pins 3 and 7 in an 8pin VR tube?
  165. help me i need schematic of Music angel PP el34
  166. How long to pre-heat filaments on 6SN7s?
  167. Amplifier Layout - Help & advice needed
  168. Any good places to shop for diy in beijing?
  169. White CF with 6SN7
  170. Power Amp
  171. is there any sound in a 30A5 / HL94 ?
  172. the hybrid one
  173. 4-1000a se subwoofer amp
  174. ear 834p output resistance
  175. Output transformer push pull
  176. Cheap Lunch?
  177. Source for Alps RK18 pot's..?
  178. Triode strapped tetrode
  179. ok, help me out here......
  180. Homebrew Toroid O/P Tranny
  181. strange noises from ECL86 amp
  182. Retouching knicks and scratches on chassis
  183. MingDa MC-7R noise and gain
  184. start-up sequence of Aikido preamp / SS power amp
  185. Driving a 6B4G with a single 5687/7044/E182CC?
  186. phono stage with different replay equalization?
  187. Lprimary variation in pair old opts
  188. 8417 triode connected tube data
  189. 5763 = El84?
  190. 5687 to 6L6 SE ?
  191. TubeCad Feedforward Shunt Regulator
  192. "12EA6" Pentode !
  193. short-circuit rectifier EZ80 !
  194. Good radio tube:6AQ5/6005
  195. Replaced pulled tubes with a resistor?
  196. Choke input PSU, drawbacks?
  197. Heater PS alternative / Redux
  198. Gold or silver dress-up rings for tube amps.
  199. 50C5 conversion
  200. Sa-5.1 blow fuse
  201. Hum problem of preamp
  202. Chassis ground blows fuse
  203. 7193 (2c22) preamp buzz/hum
  204. Se Opt
  205. Does anhone use those switching power supply for the heaters?
  206. Tube Minidoc, featuring New York Noise
  207. Help Choosing A Sowter Trans For My DAC?
  208. fisher 800c clipping at ultra low volume
  209. "audiodigit" tubalizer & tubepre original schematic
  210. F704
  211. tube socket PCB library or dimensions
  212. motorboating
  213. 6AN8 Triode connection + EL 84 PP
  214. Please help amend 6AS7PP circuit
  215. El84 Pp
  216. 6V6 Ultralinear
  217. Dear Moderators
  218. 845 se
  219. Bell 2122-B integrated amp - tube suggestions
  220. Wirewound pot for Rk
  221. KT88/90 F2011 Schematic
  222. United Electric 967
  223. Scott 222c mods...?
  224. Switching supply for 300B filaments
  225. ECF80/6BL8
  226. 24v tube buffer & line stage schematic
  227. Vintage gear hunting
  228. Seperate PSU Transformers? Filament Supplys?
  229. 828 is better
  230. Hum on a choke loaded stage
  231. SE Transformer question
  232. Design question - How to make amp porn visible?
  233. Leak Stereo 20 - Johan's Square Wave Theory
  234. K-12G First Time Build
  235. Vishay vt52-55 resistors in a tube amp
  236. EL84 Push-Pull ccs bias
  237. Eight 807's in Push Pull?
  238. Working with Current O/P DAC Chips
  239. Unison research Preludio schematic
  240. Rewinding Power transformer
  241. Information needed on RCA SPECIAL RED TUBES
  242. Score?
  243. Herron phono
  244. tube preamp + SS power amp.
  245. Puzzler
  246. HI-Fi 6p13p
  247. Resistor values
  248. To chassies SE amp,PSU question
  249. Grounding & board Layout questions
  250. Look for a beefy driver tube.

Content Relevant URLs by vBSEO 3.3.2