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. HP 8903B and Pete Millett's Software Problem ?
  2. How to identify an ARC D70 version ?
  3. Valve amp first build - questions
  4. Transfrmer Impedance Question
  5. Disappointing results from RH84
  6. Anyone Loose a Counterpoint SA-5000?
  7. Installing a 610 in to a B&K 500
  8. My first tube preamp (4S)....
  9. Recycling old iron with stiff wires.
  10. 6EM7 as driver... help !!!
  11. changing R1 value in SE amp
  12. Heater CCS makes for low voltage
  13. DHT & Indirect on same line?
  14. Which tube preamplifier kit for LM3886 amplifier?
  15. budgie pre-amp
  16. ecl82 class A pp, need schematic
  17. Input low pass preferred method
  18. cary SLP50A
  19. se output options for single/balanced tda1541
  20. FM noise in Fisher 90-T in FM mode
  21. ST Triodes?
  22. TUBECAD SE.
  23. RH84 build with SS recto and voltage doubler (any input?)
  24. Tube identification
  25. Brand new cap overheating - argh
  26. High Power Valves
  27. Tubelab SSE B+ and cathode resistor questions
  28. HIFI world 6080 se
  29. EF86 triode question
  30. Connecting a Headphone Jack to a Preamp
  31. PSE 300B "French connexion"
  32. Making a custom tube characteristic graph
  33. 300B DRD power supply
  34. Insanely High Common Mode Voltage Shunt Measurement
  35. Heathkit AA-151 troubles
  36. Tube Power supply question...
  37. Noob question on power transformer primary input voltage
  38. Dynaco ST35 testing for a blown power transformer
  39. 6n6p tube buffer
  40. Welborne Labs
  41. GU-50 triode
  42. Help track down noise in gyrator
  43. Earphone Amp Improvements
  44. Protecting Wire
  45. 45 SET : tubelab vs get*set*go vs ?
  46. 6SL7 in Maggy 175 amp...
  47. Heater soft start for series-connected preamp valves
  48. low/no gain follower
  49. Data for 6BD2A or 6BD2
  50. isolation test
  51. Western Electric 437A preamp
  52. solid-state rectrification
  53. Class AB
  54. push-pull
  55. Need help ID tango-lookalike transformers
  56. TV Valves blast from the past..
  57. Tubes suggestions for parafeed headphones amp ?
  58. CCS Loadline
  59. Universal pover supply for ECC85 EL84
  60. Conversion Project
  61. Dynaco PAS I/O PCB Grounding
  62. CCS for anode load
  63. OTL Power Supply: Halfwave vs Virtual Ground
  64. Can NOS tubes have emission staining on the glass?
  65. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  66. Capacitor Drain for Tube Bench Power Supply ?
  67. Diodes, diodes, diodes...
  68. Grid leak resistors and dc-coupling
  69. Output transformer at speaker?
  70. Newbie just wondering if this PP amp looks ok
  71. 6P36S push pull HiFi amp
  72. Another Output Transformer Wiring Question
  73. Cathode bias for EL84 PPP
  74. Output Transformer Wiring Question
  75. NJ7P Tube Database
  76. solving my old radiogram sound issues - help
  77. 6H9c Idle Current.
  78. 12E1 SE amp suggestions.
  79. Direct Coupled Output Stage, DC Bias Balance
  80. Pre-amp tube suggestions for 2A3 output tube
  81. AirTight ATM-1 Schematic
  82. Counterpoint SA 5000 Service manual and PSU
  83. Rectifier tube ? - Berman 76 preamp
  84. Cathode feedback (SE amp)
  85. Will anybody interest in stamp size ccs module?
  86. Fairchild voltage questions
  87. Help with a Sylvania 7695 Project
  88. Flicker Noise dominates triode noise in audio (AES)
  89. A tube for SE with 1k-1k5 load
  90. scott stereomaster 233 restoration
  91. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  92. What to do with C3g tubes
  93. Can anyone ID an output transformer's part number?
  94. Nestorovic NA-1 & Alpha-1 Schematics
  95. Data for 6BD2
  96. Ken Shindo R.I.P
  97. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  98. Seas Trym with SE KT88 amplifier?
  99. 845-Amp-IT-Coupled
  100. Data for 6RA3
  101. Miniwatt N3 not turning on!
  102. I need ideas on a can capacitor
  103. Help with tube for power supply...
  104. AVC vs TVC for 10y line preamp
  105. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  106. help on 845 amp
  107. High voltage power tube question
  108. Tribute OPT for PSE 300B
  109. Floating Paraphase.
  110. 6Q7G as driver in RH807
  111. Custom tubes4hifi m-125 monoblocks
  112. Antique Audio Preamlifier made in USA
  113. directly heated tube rectifiers
  114. Biasing a 12EA6 low voltage pentode
  115. Power supply doubt
  116. Vinyl Savor's Octal 6GL7 preamp?
  117. 837 tube
  118. Tone control bypass (Kontakt KT-7)
  119. drdwers
  120. Amplifier Sensitivity?
  121. identify nickel laminations
  122. Recapping Vintage EL84 amp
  123. opinion on dynaco mark VI
  124. How can i have 450 Volts ?
  125. Balanced Preamp
  126. ecc99-300b
  127. Question about the tube specs/testing?
  128. Transformer Winding Configuration, Hafler 2,815,402
  129. PSU with SS Choke for Loftin-White 2a3.
  130. HP 8903 Pete Millet's Software on Window 8 ?
  131. Cathode Destruction
  132. Earth SuperBass B-2000 bass head info needed
  133. More radio shack dissapointment
  134. What to do with transformer secondary when used as a choke?
  135. Slight transformer buzzing in Engineers Amp
  136. Couple Gyrator Questions
  137. Shishido/Loftin-White 2A3/45 Extasy..
  138. When is a tube not a Valve?
  139. Relay Recommendataion
  140. 6080 monotriod amplifier
  141. Tetra Sans PS Phono Stage Power Supply
  142. transformer test
  143. Could someone tell me more about the Mesa Boogie Strategy 400?
  144. New OTL headphone project with EC88 and 6080
  145. Philips Tube Code
  146. Edcor GXPP vs. CXPP
  147. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  148. Marshall Guitar Conversion 12AX7 Replacement
  149. affordable potted power transformer?
  150. Am I pushing the envelope too far? Layout concerns.
  151. Pete Millet's Uniamp
  152. 6211 for???
  153. Picking an output transformer: power vs. sound quality
  154. Tube emulation with transistors
  155. Altec 1570b Tube Swap
  156. Popping stepped attenuator
  157. 6922 driver/cathodyne - direct coupled
  158. Solid state rectifier with these tubes
  159. Need advice -- Improving an old tube amp
  160. KT88 SE developed a buzz
  161. Guidance on amp design
  162. OTL3 Autograph Series
  163. DAC Tube i/v help!
  164. Need help figuring out a tube amp!
  165. Parallel 12AT7 output stage design?
  166. 6SN7 SRPP
  167. Problem Bi-Amping
  168. Amplifier recommendation
  169. DIY tube amplifier got no sound but all tubes are fired up.
  170. Circuit for Melos 333
  171. DHT Tube regulated power supply
  172. Akai M8 Restoration, newbie questions
  173. Bench Power Supply - what to get?
  174. Telefunken RS241 Design Help
  175. Telefunken Hymnus 5328 MX console
  176. Some Dummy DHT Questions
  177. Inductance loading tube stage questions
  178. Simple tube kit for tube sound ?
  179. Voltage Divider with Capacitor Across Resistor to Ground
  180. FM Demodulator for Tube receivers
  181. The best amp to DIY?
  182. SE Tubelab / EL34b tubes / Transformers
  183. Heath Kit Pre Amp
  184. Preamp hiss noise
  185. Tube preamp?
  186. 417a load line
  187. 6N1 + 6P3P build, need some help.
  188. Caps connected in series in Audio Note kit 4
  189. Ground loop cure?
  190. Dynaco ST-70 Clone
  191. Op Amp Phase Splitter
  192. Idea for ECC85 or EM84?
  193. Why no sound?
  194. single ended tube amp sounds itself
  195. Proper Pentode Usage 717A (713A)
  196. Help with Mullard 5 20 project
  197. Help on Negative Feedback in KT66 PP
  198. Trying to understand 6BM8 regulator (audio note clone)
  199. 6AS7 headphone amp with Sophia Electric Mesh plate 274B rec. tube
  200. CR Kalypso Amp with output stage problem- Please help!
  201. "PEAK INPUT SIGNAL GRID-TO-GRID" question.
  202. EZ81 Load
  203. Rectifier question
  204. 6sn7-300b
  205. Balanced tube phono stage
  206. Your favorite 12B4A for a preamp ?
  207. Voltage rating for output coupling caps in 6J1 tube buffer?
  208. Single stage 845 amp
  209. Eagle tube library
  210. Using Choke in Choke Input Power Supply ?
  211. 6550 wrong high bias...
  212. Floating Bridged CCS Loaded P-P Tube Amp
  213. What to do with a problem Counterpoint SA-12
  214. 6Z9P Mu Stage max anode-cathode voltage
  215. Audio Innovations Series 500 parts
  216. Hagerman Trumpet phonostage
  217. PS design...success or failure?
  218. Kuba Serenade Stereo Console - Part III - Replacing all caps
  219. schematic of Knight KP-70 preamp or anyone having this amp?
  220. 6N6P Cathode Follower design value
  221. Radiotron 32W PP amp from RDH3
  222. Heater filament questions
  223. 46 in ultralinear mode
  224. help needed need transformer prim 230/110 sec 300v appr. 20ma +6,3v or 12,6v
  225. Output transformer confusion
  226. need amp schematic help
  227. reviving an old Randall RGT100
  228. lm317 and heater supply.
  229. BJT Voltage Bootstrap - SLCF
  230. Ideas for a cheap 200mA tube rectified PSU
  231. Need help with tube rectifier
  232. Tube or Circuit Noise?
  233. JE Labs (Angela instr.) : your favorite 2A3 schematic ?
  234. Crack the Code Amp build 1000 Watt Tube Amplifier
  235. 12E1 in fixed bias - too much current!
  236. CD-DVD player vs Notebook-usb soundcard sensitivity issue
  237. photo of Knight KP-70 preamplifier for missing component
  238. heater wear sign?
  239. Musical Fidelty X-10D Clone
  240. 815 amp
  241. Jorgen Schou 31,5 OT connection
  242. Is there such a thing....
  243. Tube Rectifiers and Common Grounds
  244. vt4c.com copper tube socket mounts
  245. 1 Ohm Tap Output tranformers?
  246. Voltage Specs For Heaters-Is 2.4V Good Enough?
  247. Aikido with 5842
  248. Luxman MQ70
  249. Valve pre-amp schematic help needed
  250. valves' world - tossie Japan

Content Relevant URLs by vBSEO 3.3.2