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. Urgent advice on Chinese purchase please!
  2. VR tubes, minimum current
  3. Senior Project Tube Preamp
  4. Antek AS-4T430 measurements
  5. small, light dc coupled 6ea7 amp sanity check
  6. 6S33S SE Transformer Set
  7. I think I blew my amp!! plase help
  8. Genalex VS Mullard 12AT7 & 12AX7's HUGE DIFF?
  9. testing 6550's on a Hickok 539b, same as KT88?
  10. 9V tube drive pedals - worth it?
  11. Music Angel XD-850MKIII 300b integrated amp
  12. 8150's
  13. More junk from China
  14. 6GM8 above 8mA/24V
  15. One Tube Sound Better Than Four?
  16. HK Citation V rebuild - any advice?
  17. 6GM8/ECC86
  18. Sound Valves vtp-101 Schematic
  19. ~17-18w sweep tube with large plate cap
  20. Fisher 500B Comparison
  21. New build of P-P PCL86 Amp
  22. Transformer question
  23. Can 110V Quad IIs be configured to 220V?
  24. Advice needed re repairing Audio Research VT100
  25. Yaqin SD-CD3 Tube Buffer - upgrading caps
  26. Best value speakers
  27. Gyrator PSU's in tube amps
  28. EL34 Amp Running KT66, Safe ?
  29. MJ Optimized Valve Regulator
  30. Need JAN 6418 tube stereo headphone preamp kit advice!
  31. Electronic choke
  32. Can you please help identifying this amp?
  33. [TubeAmp] Beginner's questions
  34. .47uF output cap to 1uF?
  35. Spark gaps on output transformers
  36. St 35 or St 70?
  37. Pi wound output transformers
  38. miniatures 6n1p 6n2p
  39. HK Citation V schematic?
  40. Help! can't find ef86 on my Hickok 539b roll chart! and need a tube project
  41. Physical Oscillating noise from phono stage
  42. PP 6c33c-b
  43. Modifying the classic Williamson
  44. eimac 152TL and 304TL
  45. LTspice model for Dynaco A470 Output Transfomer
  46. audiodesignguide.com PP KT88
  47. One more 4P1L SE
  48. Mount rectifier above torroidal transformer?
  49. Extending Tube Sockets off a PCB
  50. EMG 200 tube tester
  51. Looking for a great starter stereo P-P amp
  52. Question regarding value of Telefunken tubes.
  53. Magic Eye tube
  54. Partridge Transformers
  55. 6CG7 replacing E88CC in SE KT88 Amp.
  56. Omit the filament windings -- LTM8033 from Linear
  57. Best position for bleeder resistor?
  58. anyone have experience with a Radio Craftsmen C400?
  59. Amp-A, a variation to the EL84 Push Pull theme
  60. tony's 6LU8 push-pull power amp build
  61. First Post Here
  62. MFA Lumi sings high-pitched tunes
  63. Power tubes not drawing current
  64. replacing tubes with circuitry
  65. High Voltage Regulators (Maida or zener)
  66. GU-81m tube amp schematics???
  67. Suggestions on SIPP driver stage
  68. How to eliminate the "white noise" for the 300B tube amp?
  69. 6BQ5 UL Curves?
  70. Looking for simple Schematic of 2A3 or 45 or 26 Headphone Amp SE OTL ? anyone ?
  71. 6N1P and 6N6P OTL headphone amp
  72. New Project
  73. Understanding Steve Bench's regulated power supply
  74. Preamp with buffer design
  75. JP200 preamp?
  76. IFI 6SN7 X3 (6N8P-6H8C) Tube Valve Preamp Kit Board from eBay
  77. New Tube Manufacture?
  78. Lowering B+ in PS
  79. Rectifier tube blows
  80. direct coupling
  81. Need some help with these tubes
  82. Edcor GSXE10-8-5K primary Inductance?
  83. My "Red board" chassis
  84. PP EL34
  85. Building something better with a Chinese SE EL34B Amp DIY Kit
  86. Problem with my amp, and I have run out of ideas
  87. Value of coupling caps
  88. Testing 6BQ5 on Hickok I-177B
  89. Stepped Attenuator for AI Modulus IIA
  90. Tubes are beautifully colored....right?
  91. Differential Input for Aikido Amp?
  92. MY BEST OTL PREAMPLIFIER
  93. Valve testing machine
  94. Line stage with 12AU7 and 6CG7 anyone?
  95. MingDa MC845-C or Opera COnsonance Reference 9.9
  96. Lower gain 12AX7?
  97. Needed: schematic for Ming Da MC34ab
  98. Solid State Cathodyne Phase Splitter Device?
  99. My Wave Isn't Square.
  100. 6J7 driver in WE91 like amplifier
  101. F2a - C3m Monkey
  102. balanced/unbalanced questions decision time
  103. Stern's saville double 6
  104. GM70 psu transformer.
  105. Antek toroidal vs Edcor?
  106. current production pentode, I_a ~ 8mA
  107. Brook 10c clone
  108. Unknown lamps need help
  109. What's wrong with this?
  110. Microphonics from C0G Caps across Heaters
  111. Yarland FV34CIII vs Synthesis Nimis
  112. 12AT7 and TDA1543...
  113. Eico Hf-81 Integrated Amplifier
  114. Tubed voltage regulator for KT88se amp, need help ?
  115. 1st post what can i build with this?
  116. CJ PV-3 voltage values for schematic
  117. How to analyze square waves?
  118. From KT90 to KT88
  119. side by side bifilar windings in excess of 1000 volts
  120. looking for a great tube amp book.
  121. Revox G36 Mod for preamp
  122. 33 in triode mode...any experience ?
  123. Help with Decware Zen EL84 SET
  124. Find schematic of amplifier mcintosh mc 275 mkiv
  125. Heater wiring - Coaxial?
  126. now mono blocks!
  127. Heathkit AA-40 or AA-121
  128. UTC o-9 ouncers for headphone amp?
  129. Help modify 6H30 Mu-follower stage
  130. Help me to identify unknown tube
  131. Valve Compressor Circuit
  132. Should I rebuild my Eico 950 Cap Tester?
  133. Choke orientation (Need help)
  134. push pull 813 tube in ultra linear mode
  135. AD1865 DAC + 6SN7 analogue stage
  136. Inexpensive tube amplifier kits?
  137. SET amp/speaker issue.
  138. No pre-Amp - Pre Amp
  139. Found a CHEAP source of output transformers in Europe
  140. How calculate cathode LEDs biased
  141. ESR test for tube amps ?
  142. asking help/knowledge asked: luxman d105u output stage
  143. Have you ever seen a 4 pin blue Alps pot??? need help
  144. Any ideas on this one???
  145. Why not 6C41C used in OTL??
  146. 6p14p(EL84) SE with 6n6p build jurnal
  147. Oscilloscope - Which one should I get ? What to look for?
  148. "Jonokuchi" - new desktop amp, or "Little red board"?
  149. Robust Driver stage recommendations
  150. Wireless World valve articles from the past
  151. Overshoot and Ringing
  152. B&K Tube Tester
  153. Harman Kardon A50K
  154. HiFi Tube amp project
  155. Submitted for your (dis) approval, OTL, Autobias Inv. Futterman
  156. Tone control - good diagram needed
  157. Dolby AC3 coming on nicely.
  158. Power Supply Question
  159. Dynatuner FM-1 Restoration
  160. faulty audioromy 6550 no output and very faith sound please help
  161. just one tube preamp or driver
  162. Power triode preamp a different way
  163. 49.95 Tube amp?!
  164. Which cap for the Musical Machine?
  165. How much power do I need in the kitchen?
  166. 1Gohm or higher resistor ...
  167. Grounding check for SE 300B amp
  168. Suggest me a build for HD600 headphones
  169. 6BQ5 Screen Voltage Regulator
  170. 6SN7 Tubes
  171. My first tube Amplifier VT4C DIY record
  172. Amplifier output wattage test
  173. Troubble shooting help please.....
  174. Heater Wiring
  175. 220/110 step down in reverse ... and more
  176. Input Level Devil please help
  177. Soft start for a preamp?
  178. Opinion requested: MingDa MC300 variants versus Consonance Cyber range
  179. Using one KT77 and one EL34 per side?
  180. Help identifying transformer wires.
  181. tube pre and tube power amp
  182. Spice Models for Tubes w Screen Grid by Gurski
  183. Theremin project needs some help!
  184. Transformer abuse or other use
  185. aikido heater voltage
  186. HY51Z datasheet, help !!!
  187. 6L6 amp with unique phase splitter - check my math
  188. Dynaco A451 Output Transformer
  189. my 250 watt tube amp can be a 500 watt tube amp for less than 2 bucks plus tubes
  190. 6AU6 preamp problem
  191. Help identifying a Telefunken(?) tube...
  192. UCC85 and e-pay
  193. Lundahl LL1676 - missing data
  194. valve phono pre-amp HELP needed
  195. Preamp pcb
  196. Strange Problem In Tube Amp Build
  197. Output transformer question
  198. Replacing ECL86/6GW8 to PCL86(14GW8)???
  199. On or Off?
  200. Neg-Feedback into Grid of gain stage instead of cathode?
  201. Accuphase F-25 Japanese manual translation help!
  202. Negative supply with CT tranny
  203. E130L SE again
  204. tony builds a 7N7 preamp
  205. Tango 10429 78% Nickle Output Transformer?
  206. Bias for Ipod Input
  207. What about this driver????
  208. allen organ amp 75
  209. Needs help Tubezone Poseidon
  210. Lightbulb trick on filament circuit?
  211. AMC CVT3030a Help for repair
  212. TF110-48/UL in the UK?
  213. hum in pas2
  214. Aikido Cathode Follwer Question
  215. Fuses...what's the deal?
  216. Question Regarding a Partial Feedback 807 SE
  217. Leftover transformers
  218. Newbie "In Search of help"
  219. ELL80/ECLL800 Cathode follower
  220. The "Tube" bookshelf
  221. knight KG-240? low output help
  222. Vacuum tube VCO
  223. JE lab 2a3 , fizzy, squeal in one channel, help
  224. Trouble with a DIY EL34 Tube Amp Kit
  225. SPICE Transformer Model Spreadsheet
  226. Choosing the right triode as a Phase Inverter
  227. toob noob with GE 5670 and I'd like to do something with it. Help?
  228. my first tube amp, no tubes...
  229. Enough heat to power my CD player...
  230. My first tube amp: 6C33C
  231. S5 16LS kit as a first DIY tube build?
  232. lady day we 91 psu mod help
  233. On days like these ...
  234. The Magnetron - A Low Noise, Long Life Amplifier????
  235. 6M11's
  236. DC coupled 300B idea - request for comments
  237. Fisher bias
  238. How does anode voltage swing to twice HT voltage?
  239. Can a 7625 Ceramic Planar Triode be soldered ?
  240. AMI "DD" Project: 6L6
  241. Plate loading questions
  242. EZ81 rectifier
  243. PY500a
  244. Tube Regulator Thoughts?
  245. Fully balanced from cartridge to loudspeaker - a little help needed!
  246. OPT on the speaker side?
  247. tube circuit conversions?
  248. Current inrush limiter suggestions
  249. Repair of Philips EL6416 amplifiers.
  250. GU-19 In priboi

Content Relevant URLs by vBSEO 3.3.2