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

  1. Help needed for my preamp
  2. 6H6p cascode differential driving 2A3 PP
  3. Best phono / line preamp
  4. Point to Point
  5. gain curve questions
  6. Questions concerning Aikido Line amp
  7. Partial cathode bypass to effect a treble boost.
  8. SE bass
  9. choke orientation
  10. Musical Fidelity X-PRE schematic
  11. Circuitmaker Spice question
  12. Trouble with a paraphase PI
  13. 27 pre PS question..
  14. 6AV5 g2 driver
  15. Calculate PSU output impedance?
  16. Output stage biasing, with the driver stage
  17. tube pedal plate voltages?
  18. grounding and 12AV6 diodes
  19. 6as7 Pse
  20. Looking for datasheets
  21. Ping Albert from Canada
  22. Old Tektronix booklet
  23. fisher 800c phase inverter adjustment 2
  24. Quick Transformer Question
  25. Power supply for Heathkit
  26. low-power output tube quality
  27. Conn Caprice organ
  28. Conservation of tubes
  29. Brimar EM87
  30. Tube sockets without the ceramic carrier.
  31. SET with tube-based CCS???
  32. fisher 800c modifications
  33. Bottlehead meet.
  34. Tie cathode to heater??
  35. anyone seen it tried like this?
  36. What do people think of the SETH 2A3 PP?
  37. Very high plate voltage EL34 amp
  38. How About Bridging SE
  39. Fisher 800c Has Odd Cathode Reading
  40. What part of DIY do you LOVE?
  41. Priboi tweakers ?
  42. 5751 and 12ax7
  43. LM317 + ceramic cap Q
  44. Derive Triode Curves from Pentode Curves?
  45. 7701 distortion device?
  46. Looking for the perfect giftshop
  47. 300b
  48. Choked ripple killer for SE?
  49. Dynaco Kits
  50. Positive bias for tube CF?
  51. need help
  52. Xindak attenuation for use with Leak Stereo 20, help please
  53. Series heaters = small problem?
  54. Recommend an EL84 tube for HIFI
  55. Help - need some info on this valve amp, please
  56. H. Olson's amps
  57. 12AT7 and the Simple EL84
  58. New K-12g only one channel working
  59. Kofi Annan in: "Kofi Makes a 300b DRD... and You Get to Help!"
  60. Rauland Borg 6L6 amp Need Info
  61. Hum Noise!
  62. Tube regulator for solidstate devices
  63. 6gu7 a sub for 6cg7/6fq7?
  64. obsession sd-600 300b mono block
  65. how do you know you need matched pair?
  66. Nobu Shishido's 805 SET interstage
  67. KT88SE, turning OPT
  68. New to tubes.
  69. OB with.......well, TL Audio's iTUBE :)
  70. Matched tubes required?
  71. GU-50 output trafo
  72. Are Hammond power transformers good enough ?
  73. Transformers.
  74. Quicky - magic eye between preamp and power stage
  75. HT to rectifier
  76. 6AV5 spice model
  77. Audio Research LS2 from 110V to 220V
  78. 6V6 PP power xfrmr
  79. I think I've damaged my amp
  80. Which brands apart wyetech uses Grounded grid?
  81. Parallel vs. series filament supply - or another filament idea
  82. 6146W Power Amplifier. Please help!
  83. grommes 511a mono tube amp/reciever
  84. First phono needs QC
  85. Meixing 3008ab problems
  86. protecting a VR tube
  87. what's the purpose of pins 3 and 7 in an 8pin VR tube?
  88. help me i need schematic of Music angel PP el34
  89. How long to pre-heat filaments on 6SN7s?
  90. Amplifier Layout - Help & advice needed
  91. Any good places to shop for diy in beijing?
  92. White CF with 6SN7
  93. Cheapo Guitar Amp
  94. Power Amp
  95. is there any sound in a 30A5 / HL94 ?
  96. the hybrid one
  97. 4-1000a se subwoofer amp
  98. ear 834p output resistance
  99. Output transformer push pull
  100. Cheap Lunch?
  101. Source for Alps RK18 pot's..?
  102. Triode strapped tetrode
  103. ok, help me out here......
  104. Homebrew Toroid O/P Tranny
  105. GIBSON GA-79RVT Stereo Cab plans or dims
  106. strange noises from ECL86 amp
  107. Retouching knicks and scratches on chassis
  108. MingDa MC-7R noise and gain
  109. start-up sequence of Aikido preamp / SS power amp
  110. Driving a 6B4G with a single 5687/7044/E182CC?
  111. phono stage with different replay equalization?
  112. Lprimary variation in pair old opts
  113. 8417 triode connected tube data
  114. 5763 = El84?
  115. 5687 to 6L6 SE ?
  116. TubeCad Feedforward Shunt Regulator
  117. "12EA6" Pentode !
  118. Marshall EL34-100/100
  119. short-circuit rectifier EZ80 !
  120. Good radio tube:6AQ5/6005
  121. Replaced pulled tubes with a resistor?
  122. Choke input PSU, drawbacks?
  123. Heater PS alternative / Redux
  124. Gold or silver dress-up rings for tube amps.
  125. 50C5 conversion
  126. Sa-5.1 blow fuse
  127. Hum problem of preamp
  128. Chassis ground blows fuse
  129. 7193 (2c22) preamp buzz/hum
  130. Se Opt
  131. Does anhone use those switching power supply for the heaters?
  132. Tube Minidoc, featuring New York Noise
  133. Help Choosing A Sowter Trans For My DAC?
  134. fisher 800c clipping at ultra low volume
  135. "audiodigit" tubalizer & tubepre original schematic
  136. Dht Guitar Amps
  137. rating of series caps
  138. F704
  139. tube socket PCB library or dimensions
  140. motorboating
  141. 6AN8 Triode connection + EL 84 PP
  142. Please help amend 6AS7PP circuit
  143. El84 Pp
  144. 6V6 Ultralinear
  145. Dear Moderators
  146. 845 se
  147. Bell 2122-B integrated amp - tube suggestions
  148. Wirewound pot for Rk
  149. KT88/90 F2011 Schematic
  150. United Electric 967
  151. Scott 222c mods...?
  152. Switching supply for 300B filaments
  153. ECF80/6BL8
  154. 24v tube buffer & line stage schematic
  155. Vintage gear hunting
  156. Seperate PSU Transformers? Filament Supplys?
  157. 828 is better
  158. Hum on a choke loaded stage
  159. SE Transformer question
  160. Design question - How to make amp porn visible?
  161. Leak Stereo 20 - Johan's Square Wave Theory
  162. K-12G First Time Build
  163. Vishay vt52-55 resistors in a tube amp
  164. EL84 Push-Pull ccs bias
  165. Eight 807's in Push Pull?
  166. Working with Current O/P DAC Chips
  167. Unison research Preludio schematic
  168. Rewinding Power transformer
  169. Information needed on RCA SPECIAL RED TUBES
  170. Score?
  171. Herron phono
  172. tube preamp + SS power amp.
  173. Puzzler
  174. HI-Fi 6p13p
  175. Resistor values
  176. To chassies SE amp,PSU question
  177. Grounding & board Layout questions
  178. Look for a beefy driver tube.
  179. ECC81
  180. 5687 v.s. 6922 preamp/xover
  181. amorphous iron core good or not
  182. Pre-Amp
  183. submini tube preamp is a success
  184. Roll off frequency.
  185. Materials Technology for Electron Tubes by Walter H. Kohl
  186. Grundig TK 46 manual
  187. I'm anti-expensive audio parts but man, a good capacitor can make a difference
  188. How to determine a tube is shorted?
  189. Power supply problem
  190. SS power trans for tube experiments
  191. how to set output current on G Pimm's CCS circuit?
  192. Tube testing questions
  193. Push Pull Output Transformer wiring problem
  194. shunt regulator using VR tubes (with ccs like g pimm) and circuit load
  195. Stepped attenuators vs. Carbon pots
  196. hum/buzz with pot all the way up
  197. Cap and resistor types in guitar tube amp
  198. VacuTrace ... In Chicago?
  199. Lifesaver question on earthing
  200. Affordable, but good attenuators?
  201. Gu50 Set ?
  202. mounting an EL34 upside-down
  203. Direct coupled PP 2a3 amp - maths needed!!
  204. My 1st scratch build complete......
  205. Very Basic EL84 or EL34 DIY Amp
  206. Curcio Daniel Preamp Mods?
  207. Tube designs: 45 driving 45/2a3/300b?
  208. Adding secondary of output transformer into cathodes of output stage ? Eico ST-70
  209. Marantz 8 B : Output Transformer
  210. has anyone used a fan on their project?
  211. Audio Research SP12 heater arrangement
  212. tv damper diodes
  213. volume pot quite close to a tube - is this okay?
  214. UTC s42 special series
  215. 6H30P preamp schematics
  216. Digital potentiometer corrupt tube amps
  217. Alternative filament supply for 01A line stage
  218. Lamination Size
  219. Yaqin MC10L and KT88
  220. Help me read tube data sheets
  221. Quick Question (Driving 6L6GC's)
  222. Cause for concern -- scorch mark in tube
  223. why not 10k pot
  224. Dynaco Stereo 70 Output Transformer
  225. 6CJ3 rectifier or 6D22S rectifier
  226. Back-to-Back trannies
  227. Spring Reverb transformer
  228. Hamfest in Toronto area next weekend
  229. st70 bass response
  230. Triode "Champ" transformer v Edcor
  231. Low vs High aka Series vs Parallel Filaments
  232. Bogen monster MO200A schematic
  233. The Great Tempe Audio Shootout
  234. opinions on this p-p kt88
  235. Any XLR Tube Buffer Plans?
  236. Mystery transformers
  237. I need help with my next project
  238. A thought on Cathode feedback
  239. EL34 SE, direct coupled
  240. Ccs
  241. Hybrid amp: ECH83 + TDA2030A
  242. Leaving tube preamp always powered on.
  243. Variable 6922 heater to cathode voltage limit...?
  244. Is this risky?
  245. What to do with some WE tubes and others
  246. 6B4G SRPP
  247. pentode in triode mode SE vs a DHT SE like 2a3/300b
  248. dynakit decware bottlehead ... which to pick
  249. 6JC6 triode strapped?
  250. Searching for Raw Turrets

Content Relevant URLs by vBSEO 3.3.2