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

  1. LTP w/ positive only supply
  2. 6V6 line preamp
  3. The 6P43P russian tube is a EL84 equivalent ??
  4. Ixys IXCP10M45s IC
  5. Help with hybrid mosfet valve amp
  6. Substitute for 6gw8 in Heathkit aa-32
  7. U-Follower: Output from Cathode or Plate?
  8. Getting rid of oscillations in the preamp
  9. has anyone used the 4-125A in SE amp ?
  10. line preamp using 6SN7 instead of 12AU7
  11. 3-pong conversion for Acoustic amplifier
  12. 6v6pp design
  13. CCS Plate Load
  14. All tube voltage doubler
  15. best value/performance ECC83 on market
  16. Help needed for my preamp
  17. 6H6p cascode differential driving 2A3 PP
  18. Best phono / line preamp
  19. Point to Point
  20. gain curve questions
  21. Questions concerning Aikido Line amp
  22. Partial cathode bypass to effect a treble boost.
  23. SE bass
  24. choke orientation
  25. Musical Fidelity X-PRE schematic
  26. Circuitmaker Spice question
  27. Trouble with a paraphase PI
  28. 27 pre PS question..
  29. 6AV5 g2 driver
  30. Calculate PSU output impedance?
  31. Output stage biasing, with the driver stage
  32. tube pedal plate voltages?
  33. grounding and 12AV6 diodes
  34. 6as7 Pse
  35. Looking for datasheets
  36. Ping Albert from Canada
  37. Old Tektronix booklet
  38. fisher 800c phase inverter adjustment 2
  39. Quick Transformer Question
  40. Power supply for Heathkit
  41. low-power output tube quality
  42. Conn Caprice organ
  43. Conservation of tubes
  44. Brimar EM87
  45. Tube sockets without the ceramic carrier.
  46. SET with tube-based CCS???
  47. fisher 800c modifications
  48. Bottlehead meet.
  49. Tie cathode to heater??
  50. anyone seen it tried like this?
  51. What do people think of the SETH 2A3 PP?
  52. Very high plate voltage EL34 amp
  53. How About Bridging SE
  54. Fisher 800c Has Odd Cathode Reading
  55. What part of DIY do you LOVE?
  56. Priboi tweakers ?
  57. 5751 and 12ax7
  58. LM317 + ceramic cap Q
  59. Derive Triode Curves from Pentode Curves?
  60. 7701 distortion device?
  61. Looking for the perfect giftshop
  62. 300b
  63. Choked ripple killer for SE?
  64. Dynaco Kits
  65. Positive bias for tube CF?
  66. need help
  67. Xindak attenuation for use with Leak Stereo 20, help please
  68. Series heaters = small problem?
  69. Recommend an EL84 tube for HIFI
  70. Help - need some info on this valve amp, please
  71. H. Olson's amps
  72. 12AT7 and the Simple EL84
  73. New K-12g only one channel working
  74. Kofi Annan in: "Kofi Makes a 300b DRD... and You Get to Help!"
  75. Rauland Borg 6L6 amp Need Info
  76. Hum Noise!
  77. Tube regulator for solidstate devices
  78. 6gu7 a sub for 6cg7/6fq7?
  79. obsession sd-600 300b mono block
  80. how do you know you need matched pair?
  81. Nobu Shishido's 805 SET interstage
  82. KT88SE, turning OPT
  83. New to tubes.
  84. OB with.......well, TL Audio's iTUBE :)
  85. Matched tubes required?
  86. GU-50 output trafo
  87. Are Hammond power transformers good enough ?
  88. Transformers.
  89. Quicky - magic eye between preamp and power stage
  90. HT to rectifier
  91. 6AV5 spice model
  92. Audio Research LS2 from 110V to 220V
  93. 6V6 PP power xfrmr
  94. I think I've damaged my amp
  95. Which brands apart wyetech uses Grounded grid?
  96. Parallel vs. series filament supply - or another filament idea
  97. 6146W Power Amplifier. Please help!
  98. grommes 511a mono tube amp/reciever
  99. First phono needs QC
  100. Meixing 3008ab problems
  101. protecting a VR tube
  102. what's the purpose of pins 3 and 7 in an 8pin VR tube?
  103. help me i need schematic of Music angel PP el34
  104. How long to pre-heat filaments on 6SN7s?
  105. Amplifier Layout - Help & advice needed
  106. Any good places to shop for diy in beijing?
  107. White CF with 6SN7
  108. Power Amp
  109. is there any sound in a 30A5 / HL94 ?
  110. the hybrid one
  111. 4-1000a se subwoofer amp
  112. ear 834p output resistance
  113. Output transformer push pull
  114. Cheap Lunch?
  115. Source for Alps RK18 pot's..?
  116. Triode strapped tetrode
  117. ok, help me out here......
  118. Homebrew Toroid O/P Tranny
  119. strange noises from ECL86 amp
  120. Retouching knicks and scratches on chassis
  121. MingDa MC-7R noise and gain
  122. start-up sequence of Aikido preamp / SS power amp
  123. Driving a 6B4G with a single 5687/7044/E182CC?
  124. phono stage with different replay equalization?
  125. Lprimary variation in pair old opts
  126. 8417 triode connected tube data
  127. 5763 = El84?
  128. 5687 to 6L6 SE ?
  129. TubeCad Feedforward Shunt Regulator
  130. "12EA6" Pentode !
  131. short-circuit rectifier EZ80 !
  132. Good radio tube:6AQ5/6005
  133. Replaced pulled tubes with a resistor?
  134. Choke input PSU, drawbacks?
  135. Heater PS alternative / Redux
  136. Gold or silver dress-up rings for tube amps.
  137. 50C5 conversion
  138. Sa-5.1 blow fuse
  139. Hum problem of preamp
  140. Chassis ground blows fuse
  141. 7193 (2c22) preamp buzz/hum
  142. Se Opt
  143. Does anhone use those switching power supply for the heaters?
  144. Tube Minidoc, featuring New York Noise
  145. Help Choosing A Sowter Trans For My DAC?
  146. fisher 800c clipping at ultra low volume
  147. "audiodigit" tubalizer & tubepre original schematic
  148. F704
  149. tube socket PCB library or dimensions
  150. motorboating
  151. 6AN8 Triode connection + EL 84 PP
  152. Please help amend 6AS7PP circuit
  153. El84 Pp
  154. 6V6 Ultralinear
  155. Dear Moderators
  156. 845 se
  157. Bell 2122-B integrated amp - tube suggestions
  158. Wirewound pot for Rk
  159. KT88/90 F2011 Schematic
  160. United Electric 967
  161. Scott 222c mods...?
  162. Switching supply for 300B filaments
  163. ECF80/6BL8
  164. 24v tube buffer & line stage schematic
  165. Vintage gear hunting
  166. Seperate PSU Transformers? Filament Supplys?
  167. 828 is better
  168. Hum on a choke loaded stage
  169. SE Transformer question
  170. Design question - How to make amp porn visible?
  171. Leak Stereo 20 - Johan's Square Wave Theory
  172. K-12G First Time Build
  173. Vishay vt52-55 resistors in a tube amp
  174. EL84 Push-Pull ccs bias
  175. Eight 807's in Push Pull?
  176. Working with Current O/P DAC Chips
  177. Unison research Preludio schematic
  178. Rewinding Power transformer
  179. Information needed on RCA SPECIAL RED TUBES
  180. Score?
  181. Herron phono
  182. tube preamp + SS power amp.
  183. Puzzler
  184. HI-Fi 6p13p
  185. Resistor values
  186. To chassies SE amp,PSU question
  187. Grounding & board Layout questions
  188. Look for a beefy driver tube.
  189. ECC81
  190. 5687 v.s. 6922 preamp/xover
  191. amorphous iron core good or not
  192. Pre-Amp
  193. submini tube preamp is a success
  194. Roll off frequency.
  195. Materials Technology for Electron Tubes by Walter H. Kohl
  196. Grundig TK 46 manual
  197. How to determine a tube is shorted?
  198. Power supply problem
  199. SS power trans for tube experiments
  200. how to set output current on G Pimm's CCS circuit?
  201. Tube testing questions
  202. Push Pull Output Transformer wiring problem
  203. shunt regulator using VR tubes (with ccs like g pimm) and circuit load
  204. Stepped attenuators vs. Carbon pots
  205. hum/buzz with pot all the way up
  206. VacuTrace ... In Chicago?
  207. Lifesaver question on earthing
  208. Affordable, but good attenuators?
  209. Gu50 Set ?
  210. mounting an EL34 upside-down
  211. Direct coupled PP 2a3 amp - maths needed!!
  212. My 1st scratch build complete......
  213. Very Basic EL84 or EL34 DIY Amp
  214. Curcio Daniel Preamp Mods?
  215. Tube designs: 45 driving 45/2a3/300b?
  216. Adding secondary of output transformer into cathodes of output stage ? Eico ST-70
  217. Marantz 8 B : Output Transformer
  218. has anyone used a fan on their project?
  219. Audio Research SP12 heater arrangement
  220. tv damper diodes
  221. volume pot quite close to a tube - is this okay?
  222. UTC s42 special series
  223. 6H30P preamp schematics
  224. Digital potentiometer corrupt tube amps
  225. Alternative filament supply for 01A line stage
  226. Lamination Size
  227. Yaqin MC10L and KT88
  228. Help me read tube data sheets
  229. Quick Question (Driving 6L6GC's)
  230. Cause for concern -- scorch mark in tube
  231. why not 10k pot
  232. Dynaco Stereo 70 Output Transformer
  233. 6CJ3 rectifier or 6D22S rectifier
  234. Back-to-Back trannies
  235. Hamfest in Toronto area next weekend
  236. st70 bass response
  237. Triode "Champ" transformer v Edcor
  238. Low vs High aka Series vs Parallel Filaments
  239. Bogen monster MO200A schematic
  240. The Great Tempe Audio Shootout
  241. opinions on this p-p kt88
  242. Any XLR Tube Buffer Plans?
  243. Mystery transformers
  244. I need help with my next project
  245. A thought on Cathode feedback
  246. EL34 SE, direct coupled
  247. Ccs
  248. Hybrid amp: ECH83 + TDA2030A
  249. Leaving tube preamp always powered on.
  250. Variable 6922 heater to cathode voltage limit...?

Content Relevant URLs by vBSEO 3.3.2