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. how do balance pots work?
  2. Issue with parafeed in SPICE
  3. GU-50 Dissected
  4. Need help on ground wiring for Scott 222-B
  5. Heathkit A9-C Mod
  6. Need a 240v, 5vac - 6-10A rectifier transformer
  7. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  8. 6AS7 SET amp discussion from Photo Gallery
  9. DHT 100hz hum
  10. HP 8903B and Pete Millett's Software Problem ?
  11. How to identify an ARC D70 version ?
  12. Valve amp first build - questions
  13. Transfrmer Impedance Question
  14. Disappointing results from RH84
  15. Anyone Loose a Counterpoint SA-5000?
  16. Installing a 610 in to a B&K 500
  17. My first tube preamp (4S)....
  18. Recycling old iron with stiff wires.
  19. 6EM7 as driver... help !!!
  20. changing R1 value in SE amp
  21. Heater CCS makes for low voltage
  22. DHT & Indirect on same line?
  23. Which tube preamplifier kit for LM3886 amplifier?
  24. budgie pre-amp
  25. ecl82 class A pp, need schematic
  26. Input low pass preferred method
  27. cary SLP50A
  28. se output options for single/balanced tda1541
  29. FM noise in Fisher 90-T in FM mode
  30. ST Triodes?
  31. TUBECAD SE.
  32. RH84 build with SS recto and voltage doubler (any input?)
  33. Tube identification
  34. Brand new cap overheating - argh
  35. High Power Valves
  36. Tubelab SSE B+ and cathode resistor questions
  37. HIFI world 6080 se
  38. EF86 triode question
  39. Connecting a Headphone Jack to a Preamp
  40. PSE 300B "French connexion"
  41. Making a custom tube characteristic graph
  42. 300B DRD power supply
  43. Insanely High Common Mode Voltage Shunt Measurement
  44. Heathkit AA-151 troubles
  45. Tube Power supply question...
  46. Noob question on power transformer primary input voltage
  47. Dynaco ST35 testing for a blown power transformer
  48. 6n6p tube buffer
  49. Welborne Labs
  50. GU-50 triode
  51. Help track down noise in gyrator
  52. Earphone Amp Improvements
  53. Protecting Wire
  54. 45 SET : tubelab vs get*set*go vs ?
  55. 6SL7 in Maggy 175 amp...
  56. Heater soft start for series-connected preamp valves
  57. low/no gain follower
  58. Data for 6BD2A or 6BD2
  59. isolation test
  60. Western Electric 437A preamp
  61. solid-state rectrification
  62. Class AB
  63. push-pull
  64. Need help ID tango-lookalike transformers
  65. TV Valves blast from the past..
  66. Tubes suggestions for parafeed headphones amp ?
  67. CCS Loadline
  68. Universal pover supply for ECC85 EL84
  69. Conversion Project
  70. Dynaco PAS I/O PCB Grounding
  71. CCS for anode load
  72. OTL Power Supply: Halfwave vs Virtual Ground
  73. Can NOS tubes have emission staining on the glass?
  74. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  75. Capacitor Drain for Tube Bench Power Supply ?
  76. Diodes, diodes, diodes...
  77. Grid leak resistors and dc-coupling
  78. Output transformer at speaker?
  79. Newbie just wondering if this PP amp looks ok
  80. 6P36S push pull HiFi amp
  81. Another Output Transformer Wiring Question
  82. Cathode bias for EL84 PPP
  83. Output Transformer Wiring Question
  84. NJ7P Tube Database
  85. solving my old radiogram sound issues - help
  86. 6H9c Idle Current.
  87. 12E1 SE amp suggestions.
  88. Direct Coupled Output Stage, DC Bias Balance
  89. Pre-amp tube suggestions for 2A3 output tube
  90. AirTight ATM-1 Schematic
  91. Counterpoint SA 5000 Service manual and PSU
  92. Rectifier tube ? - Berman 76 preamp
  93. Cathode feedback (SE amp)
  94. Will anybody interest in stamp size ccs module?
  95. Fairchild voltage questions
  96. Help with a Sylvania 7695 Project
  97. Flicker Noise dominates triode noise in audio (AES)
  98. A tube for SE with 1k-1k5 load
  99. scott stereomaster 233 restoration
  100. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  101. What to do with C3g tubes
  102. Can anyone ID an output transformer's part number?
  103. Nestorovic NA-1 & Alpha-1 Schematics
  104. Data for 6BD2
  105. Ken Shindo R.I.P
  106. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  107. Seas Trym with SE KT88 amplifier?
  108. 845-Amp-IT-Coupled
  109. Data for 6RA3
  110. Miniwatt N3 not turning on!
  111. I need ideas on a can capacitor
  112. Help with tube for power supply...
  113. AVC vs TVC for 10y line preamp
  114. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  115. help on 845 amp
  116. High voltage power tube question
  117. Tribute OPT for PSE 300B
  118. Floating Paraphase.
  119. 6Q7G as driver in RH807
  120. Custom tubes4hifi m-125 monoblocks
  121. Antique Audio Preamlifier made in USA
  122. directly heated tube rectifiers
  123. Biasing a 12EA6 low voltage pentode
  124. Power supply doubt
  125. Vinyl Savor's Octal 6GL7 preamp?
  126. 837 tube
  127. Tone control bypass (Kontakt KT-7)
  128. drdwers
  129. Amplifier Sensitivity?
  130. identify nickel laminations
  131. Recapping Vintage EL84 amp
  132. opinion on dynaco mark VI
  133. How can i have 450 Volts ?
  134. Balanced Preamp
  135. ecc99-300b
  136. Question about the tube specs/testing?
  137. Transformer Winding Configuration, Hafler 2,815,402
  138. PSU with SS Choke for Loftin-White 2a3.
  139. HP 8903 Pete Millet's Software on Window 8 ?
  140. Cathode Destruction
  141. Earth SuperBass B-2000 bass head info needed
  142. More radio shack dissapointment
  143. What to do with transformer secondary when used as a choke?
  144. Slight transformer buzzing in Engineers Amp
  145. Couple Gyrator Questions
  146. Shishido/Loftin-White 2A3/45 Extasy..
  147. When is a tube not a Valve?
  148. Relay Recommendataion
  149. 6080 monotriod amplifier
  150. Tetra Sans PS Phono Stage Power Supply
  151. transformer test
  152. Could someone tell me more about the Mesa Boogie Strategy 400?
  153. New OTL headphone project with EC88 and 6080
  154. Philips Tube Code
  155. Edcor GXPP vs. CXPP
  156. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  157. Marshall Guitar Conversion 12AX7 Replacement
  158. affordable potted power transformer?
  159. Am I pushing the envelope too far? Layout concerns.
  160. Pete Millet's Uniamp
  161. 6211 for???
  162. Picking an output transformer: power vs. sound quality
  163. Tube emulation with transistors
  164. Altec 1570b Tube Swap
  165. Popping stepped attenuator
  166. 6922 driver/cathodyne - direct coupled
  167. Solid state rectifier with these tubes
  168. Need advice -- Improving an old tube amp
  169. KT88 SE developed a buzz
  170. Guidance on amp design
  171. OTL3 Autograph Series
  172. DAC Tube i/v help!
  173. Need help figuring out a tube amp!
  174. Parallel 12AT7 output stage design?
  175. 6SN7 SRPP
  176. Problem Bi-Amping
  177. Amplifier recommendation
  178. DIY tube amplifier got no sound but all tubes are fired up.
  179. Circuit for Melos 333
  180. DHT Tube regulated power supply
  181. Akai M8 Restoration, newbie questions
  182. Bench Power Supply - what to get?
  183. Telefunken RS241 Design Help
  184. Telefunken Hymnus 5328 MX console
  185. Some Dummy DHT Questions
  186. Inductance loading tube stage questions
  187. Simple tube kit for tube sound ?
  188. Voltage Divider with Capacitor Across Resistor to Ground
  189. FM Demodulator for Tube receivers
  190. The best amp to DIY?
  191. SE Tubelab / EL34b tubes / Transformers
  192. Heath Kit Pre Amp
  193. Preamp hiss noise
  194. Tube preamp?
  195. 417a load line
  196. 6N1 + 6P3P build, need some help.
  197. Caps connected in series in Audio Note kit 4
  198. Ground loop cure?
  199. Dynaco ST-70 Clone
  200. Op Amp Phase Splitter
  201. Idea for ECC85 or EM84?
  202. Why no sound?
  203. single ended tube amp sounds itself
  204. Proper Pentode Usage 717A (713A)
  205. Help with Mullard 5 20 project
  206. Help on Negative Feedback in KT66 PP
  207. Trying to understand 6BM8 regulator (audio note clone)
  208. 6AS7 headphone amp with Sophia Electric Mesh plate 274B rec. tube
  209. CR Kalypso Amp with output stage problem- Please help!
  210. "PEAK INPUT SIGNAL GRID-TO-GRID" question.
  211. EZ81 Load
  212. Rectifier question
  213. 6sn7-300b
  214. Balanced tube phono stage
  215. Your favorite 12B4A for a preamp ?
  216. Voltage rating for output coupling caps in 6J1 tube buffer?
  217. Single stage 845 amp
  218. Eagle tube library
  219. Using Choke in Choke Input Power Supply ?
  220. 6550 wrong high bias...
  221. Floating Bridged CCS Loaded P-P Tube Amp
  222. What to do with a problem Counterpoint SA-12
  223. 6Z9P Mu Stage max anode-cathode voltage
  224. Audio Innovations Series 500 parts
  225. Hagerman Trumpet phonostage
  226. PS design...success or failure?
  227. Kuba Serenade Stereo Console - Part III - Replacing all caps
  228. schematic of Knight KP-70 preamp or anyone having this amp?
  229. 6N6P Cathode Follower design value
  230. Radiotron 32W PP amp from RDH3
  231. Heater filament questions
  232. 46 in ultralinear mode
  233. help needed need transformer prim 230/110 sec 300v appr. 20ma +6,3v or 12,6v
  234. Output transformer confusion
  235. need amp schematic help
  236. reviving an old Randall RGT100
  237. lm317 and heater supply.
  238. BJT Voltage Bootstrap - SLCF
  239. Ideas for a cheap 200mA tube rectified PSU
  240. Need help with tube rectifier
  241. Tube or Circuit Noise?
  242. JE Labs (Angela instr.) : your favorite 2A3 schematic ?
  243. Crack the Code Amp build 1000 Watt Tube Amplifier
  244. 12E1 in fixed bias - too much current!
  245. CD-DVD player vs Notebook-usb soundcard sensitivity issue
  246. photo of Knight KP-70 preamplifier for missing component
  247. heater wear sign?
  248. Musical Fidelty X-10D Clone
  249. 815 amp
  250. Jorgen Schou 31,5 OT connection

Content Relevant URLs by vBSEO 3.3.2