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

  1. Partial Feedback EL84PP - Not quite as expected (yet)
  2. Preamp suggestions - Help a hack have some fun
  3. 6GK6 Ultralinear
  4. Vacuum Rectifier Question
  5. LM4702 meets up with 6550's
  6. 6bx7gt envelope temperature
  7. Counterpoint SA 3 schematic
  8. Tubes measured in microhms = mA..?
  9. Checking ARC SP9
  10. 6J11 Datasheet anyone?
  11. Help cleaning tube pins
  12. Best way to use a PAIR of 6SL7ís to drive a 300B?
  13. preamp cathode bypass cap benefits
  14. EF184 or (EC)L82 radio amplifier?!
  15. 5687 for Aikido
  16. Pre Amplifier Out Sockets
  17. Recommended output valves for this transformer
  18. power tubes and learning SET design
  19. Phono pre-amp Question
  20. TVA-1 cathode resistor value
  21. need power tranformer ideas
  22. Cary Cad-300b Se
  23. newbie question about 7591 cathode bias
  24. 5814 Raytheon Windmill Getter late 50's
  25. Fundamentals of tube amp design
  26. 7868 amp sounds good but low volume
  27. How does class AB2 sound?
  28. 6sn7 brand
  29. Might speaker filters be in the wrong place?
  30. Problem: attenuation after cathodyne and CF
  31. LED bias and differential pairs
  32. Kimmel Mu stage summary sheet
  33. Tube buffer for car audio
  34. Practical PSE thinking.
  35. I need help on a Simple guitar/vocal pre amp.
  36. Kr300bxls
  37. Biggest noval dual triode?
  38. 2 amps with 1 set of speakers?
  39. tubeamp kits
  40. Tripletone amplifier
  41. Tube curves tracer
  42. Help with Shunt Regulation and Noise
  43. Plug 'N' Play B+ time delay
  44. Hot Rod "Bronco" project/TRANSFORMERS
  45. Precision PA conversion help needed
  46. Caps in Voltage divider Heater Bias ?
  47. Looking for Melos triode 200+ schematics
  48. ETF07 brief summary
  49. No response from Vacuumtubes.net
  50. dynakit pam selenium rectifier replacement help
  51. Adjustable Fixed Grid Bias
  52. Best output transformer for 300B
  53. Transconductance of E88CC,6922,6N23P
  54. Finding The Root Of The Problem
  55. Beard P35
  56. purple tube heaters...
  57. Which 12AU7 and 6V6GTs?
  58. 6f2 - 6n1???
  59. Help with Schematic
  60. Class A Push Pull with 6L6GC
  61. EL84 driver tube, with less than 5mA current
  62. Sleeping Sickness
  63. 50L6-GT or 6W6-GT
  64. Help ID this transformer
  65. Tube dropping - Help?
  66. For anyone running a K-502 with a FR driver
  67. Active crossover
  68. General guidence building guitar amp
  69. Pounds, Shillings and Pence
  70. Trying to learn something, against my better judgment
  71. Battery grid bias to fixed bias in Toccato?
  72. PLS take a look!
  73. Use for 5K:8 PP OPT?
  74. Low amp Impedance input and high dac output
  75. The Magic of a Name
  76. which edition of Morgan Jones' books?
  77. altec 1530 schematic
  78. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  79. 6HB6/6HA& Spud?
  80. schematic diagram golden tube se40 for repair! help
  81. Reliable B+ PSU for pro preamp
  82. Help me find some info please
  83. Some tube radios
  84. Electro Harmonix 300b...shorting problems?
  85. Aikido linestage tube choice? (again)
  86. Teeco 1220??
  87. magic smoke pilot aa903
  88. PP bias balance pot
  89. Jolida JD 502A
  90. Cathode Bias for SimpleSE
  91. TRemPre malfunctioning
  92. HV benchtop power supply, help on opamp setup
  93. Transcendar Output Transformers ST70
  94. Unofficial Tube Market Survey
  95. testing 6DJ8s
  96. 6L6 AB PPP stage; does it make sense?
  97. 7868 tubes - replace with 6L6's?
  98. Vintage Amp...too much gain on CD
  99. ETF07 - Last possibility to join
  100. Tube 7403
  101. New SET: JE labs simple 45 or tubelab SE?
  102. Melos triode and computer as source: BUZZ BUZZ BUZZ
  103. 6SN7 Cascoded CCS
  104. 7591 se tube amp?
  105. Sovtek 5881WXT/Quad II
  106. Adding more capacitors to an AMP
  107. Tube Characteristics
  108. Tube guilt
  109. KT88 or 6550
  110. Single ended OTL Transcendent
  111. K-12 kit, buzz in R channel
  112. Hickok 752A repair
  113. my new tube line stage
  114. Audio Innovations Series 200 Phono Stage
  115. is it correct to calculate OTL?
  116. Late Halloween Cartoon
  117. on/off/on switch for bright/bold?
  118. Another CCS for tubes/valves: PCBs
  119. Customdaveus
  120. newbie questions on Bogen M330A repair
  121. crackling sound from one channel
  122. Cosmos Valve amplifier
  123. The Vacuum Tube Truth
  124. Inverted Triode SE OTL
  125. Negative feedback problems on ECL82 SE amp.
  126. Cheap tester?
  127. Anyone familiar with Hyuger HK-300BS kit from Hino Audio?
  128. Fisher SA 1000
  129. Hot Hot Hot
  130. Dynaco PAS-4 manual
  131. amplifier pp with 6p3s
  132. rusty chassis - what to do?
  133. Use 9 pin Aikido PCB kit or buy 8 pin ?
  134. Where to find data sheets?
  135. how to reverse signal for Common Cathode circuit
  136. Audio note M2 power supply resistor value
  137. Are 6DZ7 to Rare to be fun?
  138. 7868 substitutes
  139. Millet Hybrid - stacked buffers
  140. Repairing an old tube raido
  141. 3 way ultimate DIY phonostage match!
  142. wanted sv572-3
  143. General Aikido power supply question
  144. question about beefing up my monoblocks
  145. multichannel tube amp
  146. Who can explain this FFT graph to me
  147. Equivalent Noise Resistance
  148. Any Tube heads near Central coast NSW
  149. Question
  150. Screen Supply For PP Amp
  151. Datasheets: RC coupled amp VS. typical characteristics
  152. How to calculate Tube Preamp output impedance?
  153. What vintage tube books do you own?
  154. re design of a SE tube amplifier
  155. NRI 70 tube chart
  156. Multimeter
  157. fizzy and unstable
  158. Russian spud amp
  159. Silly Question about 807
  160. Help with dared MP-15, please!
  161. tube tester B&k 606 Transformer brun need help
  162. Do tube curves tell most of the story?
  163. Sovtek 6B4-G
  164. Ultimate Amplifier
  165. How quiet is dead quiet?
  166. Max B+ for triode-connected KT88
  167. Acrosound Archive
  168. Hail to Vintage Power Transformer & Choke?
  169. 2a3 parafeed
  170. Kimmel mu stage
  171. 4043c
  172. Impedance quandary
  173. 6L6G Amp recommendations
  174. Beefing up the power supply
  175. System distortion and Single Ended Tube Amps
  176. TB3/1000 is alive ! ("European 833A")
  177. Another tube newb
  178. Decoding another recycled power trans
  179. parafeed plate choke calculation
  180. New to tube building / design - Input requested!
  181. tube preamp with hum??emf
  182. Which tubes for this OPT?
  183. Vacuum tube tester, do you own one?
  184. Ping salas re: LED baising
  185. Model train throttles?
  186. Microphonics that go away by themselves
  187. Variable cathode/plate resistors?
  188. 2 newbe questions
  189. 12B4A + LL1671 Linestage
  190. crate vintage "club 50" schematics needed
  191. Distortion Analysis using an Oscilloscope
  192. Western Electric 'Harmonic Equalizer'
  193. Tube Newb Mc Intosh questions.
  194. AH NJoe TJOEB, valve compatibility issue
  195. Tubes: test as New? translation please
  196. new s5 tube amp kit
  197. Stereo BusBar OK?
  198. Fi Primer 807
  199. Calculating power output in the design stage?
  200. Overdriving the grid of a triode
  201. Newb Questions RE: HS caps & B+ Bias
  202. mercury vapor... i love it!!!
  203. Interstage Couple 300B 811-3 SE amp
  204. PCB Trace Clearance for High Voltage
  205. youtube - tubes!
  206. Noob to the Leak ST20
  207. Unconditional stability, phase shift and feedback
  208. An almost DIY 6DJ8 Linestage
  209. Is Acrosound T-330 really good?
  210. My 1st amp just came to life......pics
  211. Russian tube power amp repair
  212. Unity coupled circuit amplifier.
  213. info about lectron JH50
  214. G.E. 6CA7/EL34 - any good?
  215. black face champ tubes
  216. SS Preamp and Tube Poweramp
  217. Values for OTL totem pole (cathode followers)
  218. 12au7 preamp will not work
  219. A Slew of Beginer Tube Questions
  220. calculating b+ voltage drop, decoupling?
  221. Another SET 2A3 in the world
  222. Help needed with Lectron JH 50 Amp
  223. Audio Note M2 regulator schematic
  224. 300b
  225. Three Simple Questions!!
  226. Edcor Transformers
  227. LTP with CCS - IM Distortion
  228. Strange 45 behaviour - help
  229. I have $250 to spend..what amp should I build?
  230. CCs plate load for mu follower 6sn7
  231. Best use of S-265 opt?
  232. what would be a reasonable price to pay for this tube ?
  233. Distortion Neutralizer for Odd Harmonics
  234. 6H13C preamp
  235. Testing tube for noise
  236. Optimal Umbilical Runs and Connections
  237. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  238. Film capacitors for decoupling
  239. Non-simultaneous Pentode anode/G2 turn-on
  240. ArnoldC's IT coupled 300B amplifier
  241. Ultralinear pse
  242. Using 0D3's for DC regulation in Aikido
  243. ECC40 preamp
  244. Newbie PS questions
  245. Preliminary 12AX7 guitar preamp
  246. Another cap replacement: uF changes..
  247. parallel EL84 transconductance amp
  248. Quad II Modified by Glenn Croft
  249. Wanted:Power transformers for Welborne DRD 300B amp
  250. Just finished testing my first 832A amp

Content Relevant URLs by vBSEO 3.3.2