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. Decoding another recycled power trans
  2. parafeed plate choke calculation
  3. New to tube building / design - Input requested!
  4. tube preamp with hum??emf
  5. Which tubes for this OPT?
  6. Ping salas re: LED baising
  7. Model train throttles?
  8. Microphonics that go away by themselves
  9. Variable cathode/plate resistors?
  10. 2 newbe questions
  11. 12B4A + LL1671 Linestage
  12. Distortion Analysis using an Oscilloscope
  13. Western Electric 'Harmonic Equalizer'
  14. Tube Newb Mc Intosh questions.
  15. AH NJoe TJOEB, valve compatibility issue
  16. Tubes: test as New? translation please
  17. new s5 tube amp kit
  18. Stereo BusBar OK?
  19. Fi Primer 807
  20. Calculating power output in the design stage?
  21. Overdriving the grid of a triode
  22. Newb Questions RE: HS caps & B+ Bias
  23. mercury vapor... i love it!!!
  24. Interstage Couple 300B 811-3 SE amp
  25. PCB Trace Clearance for High Voltage
  26. youtube - tubes!
  27. Noob to the Leak ST20
  28. Unconditional stability, phase shift and feedback
  29. An almost DIY 6DJ8 Linestage
  30. Is Acrosound T-330 really good?
  31. My 1st amp just came to life......pics
  32. Russian tube power amp repair
  33. Unity coupled circuit amplifier.
  34. info about lectron JH50
  35. G.E. 6CA7/EL34 - any good?
  36. SS Preamp and Tube Poweramp
  37. Values for OTL totem pole (cathode followers)
  38. 12au7 preamp will not work
  39. A Slew of Beginer Tube Questions
  40. calculating b+ voltage drop, decoupling?
  41. Another SET 2A3 in the world
  42. Help needed with Lectron JH 50 Amp
  43. Audio Note M2 regulator schematic
  44. 300b
  45. Three Simple Questions!!
  46. Edcor Transformers
  47. LTP with CCS - IM Distortion
  48. Strange 45 behaviour - help
  49. I have $250 to spend..what amp should I build?
  50. CCs plate load for mu follower 6sn7
  51. Best use of S-265 opt?
  52. what would be a reasonable price to pay for this tube ?
  53. Distortion Neutralizer for Odd Harmonics
  54. 6H13C preamp
  55. Testing tube for noise
  56. Optimal Umbilical Runs and Connections
  57. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  58. Film capacitors for decoupling
  59. Non-simultaneous Pentode anode/G2 turn-on
  60. ArnoldC's IT coupled 300B amplifier
  61. Ultralinear pse
  62. Using 0D3's for DC regulation in Aikido
  63. ECC40 preamp
  64. Newbie PS questions
  65. Another cap replacement: uF changes..
  66. parallel EL84 transconductance amp
  67. Quad II Modified by Glenn Croft
  68. Wanted:Power transformers for Welborne DRD 300B amp
  69. Just finished testing my first 832A amp
  70. Russian Transformer cores
  71. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  72. 15E and plate curves
  73. Replacing 6N1P' s with 6922s or 7308s
  74. the "cheapo"
  75. OPT Quality Factors?
  76. 50CA10 pushpull amp
  77. New Hammonds?
  78. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  79. Voltage Gain Confusion!!
  80. is this ok to build???
  81. PSUD2 help needed
  82. It's raining 10M45's!
  83. Grid Leak Bias on small signal pentodes.
  84. Equalizing + & - output voltage?
  85. Help with ECF80 spice model
  86. Would a Williamson sound better with a CCS tail in the driver?
  87. low ac voltage question
  88. Aikido/SMPS/SKA SS
  89. values of ground(?) coupling caps in Aikido
  90. Please explain grid stoppers..
  91. Psud2 Help
  92. Appropriate Iron for 211 Triode SE
  93. does anyone know the resistance of a hammond 300bx transformer
  94. Help with Aikido B+ Bias layout
  95. 12v 6BF7 preamp design tested
  96. power supply PLEASE HELP
  97. power supply PLEASE HELP
  98. power supply PLEASE HELP
  99. tube amp
  100. 6AU8A, and assorted questions
  101. PPP OPT clarification
  102. ECC83/12AX7 Tube test query
  103. 0D3 shunt regulator for single ended duty
  104. where to buy parts (transformers and chokes)
  105. beefy choke -- please help
  106. 5W EL84 drive EL84 SE
  107. Calculate minimum load current of choke?
  108. Best Sounding Output Tube
  109. Best internal wiring for power
  110. Preamp with DHT
  111. bogen m60 and webster pa
  112. 6p13p schematic
  113. Buzzing Choke - Any Ideas?
  114. Floating A2 Bias
  115. Any SE project for 91db speaker?
  116. Hammond Mains Transformer - Center Tap Split
  117. Fixed Bias v Ultrapath
  118. cathode follower asymmetric slew
  119. 6SN7 with transformer coupling
  120. 6AQ7 - why so cheap???
  121. Grommes 260
  122. heathkit aa-81 mono blocks
  123. feedbackless interstage p-p kt88 amp
  124. Using Horizontal Output Tubes - Power Supply
  125. 6e5c
  126. Mr Liang 845 Sound :(
  127. Test pentode grids without a tester
  128. Info required : GAMMA VALVE AMPS..
  129. 6SN7 plate voltage, current and lifespan
  130. Clarification of floating heater supply
  131. Changed a cap and lost some bass...?
  132. 6P9/6AG7 Triode Amplifier
  133. Chokes Designed for Choke Input PSU's
  134. Power trafo...
  135. Any value to modding a UL OPT to CFBK?
  136. Rogers Cadet III Advice & Opinions Needed
  137. DCG5/5000GS Valve
  138. Morgan Jones on Google Books
  139. CCS for 12B4 linestage
  140. 6j9p
  141. philips hf 303 amp
  142. DIY tube testing Curve Tracer
  143. Amplifier impedance and pot selection
  144. Tube rise time and slew rate
  145. What's your favourite sounding DIY/kit tube amp?
  146. How to convert a 220v Chinese amp to 110v for US use
  147. look for schematic of 12v preamp ???
  148. Bevois Valley and parallel push pull
  149. Amp Wiring Color Code
  150. Xindak 805 monos $4700/pr USD
  151. A new DHT power supply idea
  152. 852 tube
  153. Tube Matcher help needed, ala PassDIY
  154. What's the difference?
  155. Cathode Feedback How-To?
  156. Is Thier Away To Clear Up Distortion???
  157. How much feedback for PP penthode?
  158. To regulate or not to regulate
  159. Anyone used interstage transformers for a 300B?
  160. Hissing Sound in KT88 Amp
  161. Go black or go around?
  162. Triodes that would like a 10K a-a OPT?
  163. Yaqin mc10L
  164. Cycline3 on the 12AU7
  165. How Would You Change This Soildstate Circuit To Tube
  166. Using existing transformer winding to provide and additional supply
  167. Magnetic shields for transformers
  168. First DIY job: Dual Tube Recording Preamp
  169. James Transformers
  170. Audiopax Model 7
  171. Isis 3030 Monoblocks
  172. From diode to tube rectification in my Aikido
  173. Williamson KT77 Question
  174. mu followers --- current --- please help
  175. need tube schematic
  176. switch snubber for Aikido
  177. Pioneer Tube Schematics
  178. Question about "bloaty" bass with SET and KT88's
  179. Ultron 6v6GT
  180. low power OTLs
  181. 6H30 equivalents
  182. What Would You Do?
  183. k-502/k-12m vs. Model 1 pcl82
  184. Shunting Pot
  185. Suggested replacements for Chinese tubes
  186. What to do with these.....
  187. ECL82 PP "reference" amp
  188. Heater TX proximity
  189. Quick question on the PP-C1 amp
  190. SET "interstage coupler" for First Watt F4
  191. 811A amp Class A2
  192. TVC before Input Transformer?
  193. Point-to-Point, Pointers
  194. Triode recommendation
  195. Schmitt & CCS
  196. Simple DC Heater Supply
  197. Output transformers ? sound quality ?
  198. KT88 Minimum Mounting Distance
  199. LED bias indicator
  200. Standby Switch
  201. chinese tube amp
  202. Broskie OTL
  203. Connecting a single plate to multiple screens?
  204. voltage divider+Aikido
  205. Wiring PSU and Aikido PCB
  206. Mission 300b parallel single ended
  207. Vietnam tube amplifier festival
  208. learning design but need help
  209. tutorial software
  210. Fisher 500C troubleshooting
  211. triode pentodes
  212. Deriving Secondary Voltages
  213. Here's the W-5M schematics . . .
  214. Question for Heathkit W-5M owners
  215. Classic 16.0
  216. 100 Ohm loudspeaker
  217. Are Srpp's Any Good (please Help)
  218. Blasphemy, I'm sure
  219. Decware ZSLA buffer -- worth cloning?
  220. Pse El84
  221. 6S19P Push-Pull Amplifier
  222. Class B Triodes
  223. Need a serious PP driver stage
  224. laptop->tubes?
  225. cathode follower -- damping factor (HELP please)
  226. Interstage X-former identification
  227. Multi-turn pot?
  228. 6L6G and 6L6GB differences?
  229. 6AK6 low power tube amp finished
  230. 7 pin X
  231. Replacing KT88 with KT90 - Beginner's questions
  232. way to estimate choke current rating?
  233. attn: Montreal, QC, Canada, OPAMPS!
  234. Hiss but no hum...
  235. Cap size for Aikido heater PS?
  236. Heathkit W-5M
  237. NTK " Teds tube mic"
  238. Making a Bias Voltage from B+ tap?
  239. Reg. Heater Circuit
  240. 6AG7 UL Curves
  241. Best SE output transformer for 300b - shootout
  242. Single ended amp from class A push-pull
  243. Yaqin MC-100b schematic diagram
  244. 12/24 volt tubes
  245. Favorite noval hi gain dual triode?
  246. Aikido users- anyone NOT have turn-off thump?
  247. Optimum value for volume control?
  248. VAL MPS mark II preamp gain reduction
  249. It is asked drawing 100 or 200 watts amplifier
  250. Mystery ST-70 Driver Board

Content Relevant URLs by vBSEO 3.3.2