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. What replaces an IN541 diode?
  2. Bottlehead Eros or Tube4Hifi PH16
  3. Psvane 2a3 T Mk II reliable vender
  4. Odd Wima cap markings
  5. Chinese Amp kit experience
  6. Considerations about headph. OCL
  7. Trying to solve a Plate Follower Problem
  8. Footprint Noval ECC83 Altium
  9. Interference in hybrid amp
  10. wiring DHT filaments with center tapped secondaries
  11. B+ of Curcio Daniel II
  12. Stepped Attenuators Questions
  13. Noisy Ground? (Probably not a loop)
  14. New Production Telefunken
  15. Tube horizontal mounting position
  16. "Ask Jan First" parts website in Germany
  17. EZ215 Stereo 5881 Amp Project
  18. CCS help dn2540 send 340v to the chassis
  19. That's What She Said RH84 Build Log
  20. Help figuring out this output transformer.
  21. 5881 PPP Cathode Bias B+
  22. Measuring DHT filament V with minimal effect.
  23. 100hz hum with Audio Research vs-55
  24. Volume potentiometer
  25. Driver for 2A3C
  26. Regulated B+ sounds worse?
  27. Sylvania console amp rebuild...
  28. E130L Micron
  29. Question Re: Ground Loop Breakers
  30. Source for D3A/7721?
  31. ID a salvaged choke
  32. Magnetwire gauge size converted to metric
  33. ccs what is the best way
  34. parafeed test/measurement setup question.
  35. how do balance pots work?
  36. Issue with parafeed in SPICE
  37. GU-50 Dissected
  38. Need help on ground wiring for Scott 222-B
  39. Heathkit A9-C Mod
  40. Need a 240v, 5vac - 6-10A rectifier transformer
  41. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  42. 6AS7 SET amp discussion from Photo Gallery
  43. DHT 100hz hum
  44. HP 8903B and Pete Millett's Software Problem ?
  45. How to identify an ARC D70 version ?
  46. Valve amp first build - questions
  47. Transfrmer Impedance Question
  48. Disappointing results from RH84
  49. Anyone Loose a Counterpoint SA-5000?
  50. Installing a 610 in to a B&K 500
  51. My first tube preamp (4S)....
  52. Recycling old iron with stiff wires.
  53. 6EM7 as driver... help !!!
  54. changing R1 value in SE amp
  55. Heater CCS makes for low voltage
  56. DHT & Indirect on same line?
  57. Which tube preamplifier kit for LM3886 amplifier?
  58. budgie pre-amp
  59. ecl82 class A pp, need schematic
  60. Input low pass preferred method
  61. cary SLP50A
  62. se output options for single/balanced tda1541
  63. FM noise in Fisher 90-T in FM mode
  64. ST Triodes?
  65. TUBECAD SE.
  66. RH84 build with SS recto and voltage doubler (any input?)
  67. Tube identification
  68. Brand new cap overheating - argh
  69. High Power Valves
  70. Tubelab SSE B+ and cathode resistor questions
  71. HIFI world 6080 se
  72. EF86 triode question
  73. Connecting a Headphone Jack to a Preamp
  74. PSE 300B "French connexion"
  75. Making a custom tube characteristic graph
  76. 300B DRD power supply
  77. Insanely High Common Mode Voltage Shunt Measurement
  78. Heathkit AA-151 troubles
  79. Tube Power supply question...
  80. Noob question on power transformer primary input voltage
  81. Dynaco ST35 testing for a blown power transformer
  82. 6n6p tube buffer
  83. Welborne Labs
  84. GU-50 triode
  85. Help track down noise in gyrator
  86. Earphone Amp Improvements
  87. Protecting Wire
  88. 45 SET : tubelab vs get*set*go vs ?
  89. 6SL7 in Maggy 175 amp...
  90. Heater soft start for series-connected preamp valves
  91. low/no gain follower
  92. Data for 6BD2A or 6BD2
  93. isolation test
  94. Western Electric 437A preamp
  95. solid-state rectrification
  96. Class AB
  97. push-pull
  98. Need help ID tango-lookalike transformers
  99. TV Valves blast from the past..
  100. Tubes suggestions for parafeed headphones amp ?
  101. CCS Loadline
  102. Universal power supply for ECC85 EL84
  103. Conversion Project
  104. Dynaco PAS I/O PCB Grounding
  105. CCS for anode load
  106. OTL Power Supply: Halfwave vs Virtual Ground
  107. Can NOS tubes have emission staining on the glass?
  108. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  109. Capacitor Drain for Tube Bench Power Supply ?
  110. Diodes, diodes, diodes...
  111. Grid leak resistors and dc-coupling
  112. Output transformer at speaker?
  113. Newbie just wondering if this PP amp looks ok
  114. 6P36S push pull HiFi amp
  115. Another Output Transformer Wiring Question
  116. Cathode bias for EL84 PPP
  117. Output Transformer Wiring Question
  118. NJ7P Tube Database
  119. solving my old radiogram sound issues - help
  120. 6H9c Idle Current.
  121. 12E1 SE amp suggestions.
  122. Direct Coupled Output Stage, DC Bias Balance
  123. Pre-amp tube suggestions for 2A3 output tube
  124. AirTight ATM-1 Schematic
  125. Counterpoint SA 5000 Service manual and PSU
  126. Rectifier tube ? - Berman 76 preamp
  127. Cathode feedback (SE amp)
  128. Will anybody interest in stamp size ccs module?
  129. Fairchild voltage questions
  130. Help with a Sylvania 7695 Project
  131. Flicker Noise dominates triode noise in audio (AES)
  132. A tube for SE with 1k-1k5 load
  133. scott stereomaster 233 restoration
  134. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  135. What to do with C3g tubes
  136. Can anyone ID an output transformer's part number?
  137. Nestorovic NA-1 & Alpha-1 Schematics
  138. Data for 6BD2
  139. Ken Shindo R.I.P
  140. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  141. Seas Trym with SE KT88 amplifier?
  142. 845-Amp-IT-Coupled
  143. Data for 6RA3
  144. Miniwatt N3 not turning on!
  145. Help with tube for power supply...
  146. AVC vs TVC for 10y line preamp
  147. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  148. help on 845 amp
  149. High voltage power tube question
  150. Tribute OPT for PSE 300B
  151. Floating Paraphase.
  152. 6Q7G as driver in RH807
  153. Custom tubes4hifi m-125 monoblocks
  154. Antique Audio Preamlifier made in USA
  155. directly heated tube rectifiers
  156. Biasing a 12EA6 low voltage pentode
  157. Power supply doubt
  158. Vinyl Savor's Octal 6GL7 preamp?
  159. 837 tube
  160. Tone control bypass (Kontakt KT-7)
  161. drdwers
  162. Amplifier Sensitivity?
  163. identify nickel laminations
  164. Recapping Vintage EL84 amp
  165. Luxman Active 3-way Tube Crossover
  166. opinion on dynaco mark VI
  167. How can i have 450 Volts ?
  168. Balanced Preamp
  169. ecc99-300b
  170. Question about the tube specs/testing?
  171. Transformer Winding Configuration, Hafler 2,815,402
  172. PSU with SS Choke for Loftin-White 2a3.
  173. HP 8903 Pete Millet's Software on Window 8 ?
  174. Cathode Destruction
  175. More radio shack dissapointment
  176. What to do with transformer secondary when used as a choke?
  177. Slight transformer buzzing in Engineers Amp
  178. Couple Gyrator Questions
  179. Shishido/Loftin-White 2A3/45 Extasy..
  180. When is a tube not a Valve?
  181. Relay Recommendataion
  182. 6080 SE triode amplifier
  183. Tetra Sans PS Phono Stage Power Supply
  184. transformer test
  185. New OTL headphone project with EC88 and 6080
  186. Philips Tube Code
  187. Edcor GXPP vs. CXPP
  188. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  189. affordable potted power transformer?
  190. Am I pushing the envelope too far? Layout concerns.
  191. Pete Millet's Uniamp
  192. 6211 for???
  193. Picking an output transformer: power vs. sound quality
  194. Tube emulation with transistors
  195. Altec 1570b Tube Swap
  196. Popping stepped attenuator
  197. 6922 driver/cathodyne - direct coupled
  198. Solid state rectifier with these tubes
  199. Need advice -- Improving an old tube amp
  200. KT88 SE developed a buzz
  201. Guidance on amp design
  202. OTL3 Autograph Series
  203. DAC Tube i/v help!
  204. Need help figuring out a tube amp!
  205. Parallel 12AT7 output stage design?
  206. 6SN7 SRPP
  207. Problem Bi-Amping
  208. Amplifier recommendation
  209. DIY tube amplifier got no sound but all tubes are fired up.
  210. Circuit for Melos 333
  211. DHT Tube regulated power supply
  212. Akai M8 Restoration, newbie questions
  213. Bench Power Supply - what to get?
  214. Telefunken RS241 Design Help
  215. Telefunken Hymnus 5328 MX console
  216. Some Dummy DHT Questions
  217. Inductance loading tube stage questions
  218. Simple tube kit for tube sound ?
  219. Voltage Divider with Capacitor Across Resistor to Ground
  220. FM Demodulator for Tube receivers
  221. The best amp to DIY?
  222. SE Tubelab / EL34b tubes / Transformers
  223. Heath Kit Pre Amp
  224. Preamp hiss noise
  225. Tube preamp?
  226. 417a load line
  227. 6N1 + 6P3P build, need some help.
  228. Caps connected in series in Audio Note kit 4
  229. Ground loop cure?
  230. Dynaco ST-70 Clone
  231. Op Amp Phase Splitter
  232. Idea for ECC85 or EM84?
  233. Why no sound?
  234. single ended tube amp sounds itself
  235. Proper Pentode Usage 717A (713A)
  236. Help with Mullard 5 20 project
  237. Help on Negative Feedback in KT66 PP
  238. Trying to understand 6BM8 regulator (audio note clone)
  239. 6AS7 headphone amp with Sophia Electric Mesh plate 274B rec. tube
  240. CR Kalypso Amp with output stage problem- Please help!
  241. "PEAK INPUT SIGNAL GRID-TO-GRID" question.
  242. EZ81 Load
  243. Rectifier question
  244. 6sn7-300b
  245. Balanced tube phono stage
  246. Your favorite 12B4A for a preamp ?
  247. Voltage rating for output coupling caps in 6J1 tube buffer?
  248. Single stage 845 amp
  249. Eagle tube library
  250. Using Choke in Choke Input Power Supply ?

Content Relevant URLs by vBSEO 3.3.2