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

  1. BHExchange for BottleHead's
  2. 6BY5GA elevated heater question
  3. Tone controls
  4. EL84 "IP" questions
  5. KIT Single ended KT88
  6. HELP needed - LEAK Varislope 2 Stereo + Stereo 20 with pictures...
  7. All tube cap tube amp?
  8. 12AX7 preamp for DAC
  9. Grid resistors -> GND
  10. OTL headphone amp distorting & clipping: weak power supply?
  11. Broken bias resistors (Yaqin MC-10L)
  12. Tube Enclosure suggestion from Europe.
  13. Benefit/SQ of tube stage at the input of ss power amp
  14. Is 6907 and QQV03-20A tubes are same?
  15. Found some chokes
  16. 6SN7 at low plate currents
  17. 12AU7, 12BH7, Darker Less Bright Option
  18. Heater current effects
  19. Not using all the sections on multi-section cap
  20. DC heater supply dies on me
  21. 1972 Leak Varislope 2 Stereo
  22. OPT secondary ground, stacked supplies
  23. OTL for HeaPhone
  24. Voltage doubler and filament supply
  25. Please suggest me a 6V6 class AB amp
  26. Need Review of wiring up of this SRPP 6AS7 tube amp
  27. Hum in a triode 1H6G...help !
  28. 40w Class A PP KT66?
  29. My new small amp EL84 SE Triode
  30. tube preamp output impedance
  31. pete millet 807 amp
  32. Lost Negative Bias-Fixed Bias
  33. Aikido ('dead quiet') output impedance
  34. Looking for lineamp buffer schematics
  35. Nagra VPA 845
  36. How to match 6C45?
  37. Yet another question about cathode bias (led+pnp)
  38. Ideal System for 1960?
  39. What replaces an IN541 diode?
  40. Bottlehead Eros or Tube4Hifi PH16
  41. Psvane 2a3 T Mk II reliable vender
  42. Odd Wima cap markings
  43. Chinese Amp kit experience
  44. Considerations about headph. OCL
  45. Trying to solve a Plate Follower Problem
  46. Nichicon Caps
  47. Footprint Noval ECC83 Altium
  48. Interference in hybrid amp
  49. wiring DHT filaments with center tapped secondaries
  50. B+ of Curcio Daniel II
  51. Stepped Attenuators Questions
  52. Noisy Ground? (Probably not a loop)
  53. New Production Telefunken
  54. Tube horizontal mounting position
  55. "Ask Jan First" parts website in Germany
  56. EZ215 Stereo 5881 Amp Project
  57. CCS help dn2540 send 340v to the chassis
  58. That's What She Said RH84 Build Log
  59. Help figuring out this output transformer.
  60. 5881 PPP Cathode Bias B+
  61. Measuring DHT filament V with minimal effect.
  62. 100hz hum with Audio Research vs-55
  63. Volume potentiometer
  64. Driver for 2A3C
  65. Regulated B+ sounds worse?
  66. Sylvania console amp rebuild...
  67. E130L Micron
  68. Question Re: Ground Loop Breakers
  69. Source for D3A/7721?
  70. ID a salvaged choke
  71. Magnetwire gauge size converted to metric
  72. ccs what is the best way
  73. parafeed test/measurement setup question.
  74. how do balance pots work?
  75. Issue with parafeed in SPICE
  76. GU-50 Dissected
  77. Need help on ground wiring for Scott 222-B
  78. Heathkit A9-C Mod
  79. Need a 240v, 5vac - 6-10A rectifier transformer
  80. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  81. 6AS7 SET amp discussion from Photo Gallery
  82. DHT 100hz hum
  83. HP 8903B and Pete Millett's Software Problem ?
  84. How to identify an ARC D70 version ?
  85. Valve amp first build - questions
  86. Transfrmer Impedance Question
  87. Disappointing results from RH84
  88. Anyone Loose a Counterpoint SA-5000?
  89. Installing a 610 in to a B&K 500
  90. My first tube preamp (4S)....
  91. Recycling old iron with stiff wires.
  92. 6EM7 as driver... help !!!
  93. changing R1 value in SE amp
  94. Heater CCS makes for low voltage
  95. DHT & Indirect on same line?
  96. Which tube preamplifier kit for LM3886 amplifier?
  97. budgie pre-amp
  98. ecl82 class A pp, need schematic
  99. Input low pass preferred method
  100. cary SLP50A
  101. se output options for single/balanced tda1541
  102. FM noise in Fisher 90-T in FM mode
  103. ST Triodes?
  104. TUBECAD SE.
  105. RH84 build with SS recto and voltage doubler (any input?)
  106. Tube identification
  107. Brand new cap overheating - argh
  108. High Power Valves
  109. Tubelab SSE B+ and cathode resistor questions
  110. HIFI world 6080 se
  111. EF86 triode question
  112. Connecting a Headphone Jack to a Preamp
  113. PSE 300B "French connexion"
  114. Making a custom tube characteristic graph
  115. 300B DRD power supply
  116. Insanely High Common Mode Voltage Shunt Measurement
  117. Heathkit AA-151 troubles
  118. Tube Power supply question...
  119. Noob question on power transformer primary input voltage
  120. Dynaco ST35 testing for a blown power transformer
  121. 6n6p tube buffer
  122. Welborne Labs
  123. GU-50 triode
  124. Help track down noise in gyrator
  125. Earphone Amp Improvements
  126. Protecting Wire
  127. 45 SET : tubelab vs get*set*go vs ?
  128. 6SL7 in Maggy 175 amp...
  129. Heater soft start for series-connected preamp valves
  130. low/no gain follower
  131. Data for 6BD2A or 6BD2
  132. isolation test
  133. Western Electric 437A preamp
  134. solid-state rectrification
  135. Class AB
  136. push-pull
  137. Need help ID tango-lookalike transformers
  138. TV Valves blast from the past..
  139. Tubes suggestions for parafeed headphones amp ?
  140. CCS Loadline
  141. Universal pover supply for ECC85 EL84
  142. Conversion Project
  143. Dynaco PAS I/O PCB Grounding
  144. CCS for anode load
  145. OTL Power Supply: Halfwave vs Virtual Ground
  146. Can NOS tubes have emission staining on the glass?
  147. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  148. Capacitor Drain for Tube Bench Power Supply ?
  149. Diodes, diodes, diodes...
  150. Grid leak resistors and dc-coupling
  151. Output transformer at speaker?
  152. Newbie just wondering if this PP amp looks ok
  153. 6P36S push pull HiFi amp
  154. Another Output Transformer Wiring Question
  155. Cathode bias for EL84 PPP
  156. Output Transformer Wiring Question
  157. NJ7P Tube Database
  158. solving my old radiogram sound issues - help
  159. 6H9c Idle Current.
  160. 12E1 SE amp suggestions.
  161. Direct Coupled Output Stage, DC Bias Balance
  162. Pre-amp tube suggestions for 2A3 output tube
  163. AirTight ATM-1 Schematic
  164. Counterpoint SA 5000 Service manual and PSU
  165. Rectifier tube ? - Berman 76 preamp
  166. Cathode feedback (SE amp)
  167. Will anybody interest in stamp size ccs module?
  168. Fairchild voltage questions
  169. Help with a Sylvania 7695 Project
  170. Flicker Noise dominates triode noise in audio (AES)
  171. A tube for SE with 1k-1k5 load
  172. scott stereomaster 233 restoration
  173. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  174. What to do with C3g tubes
  175. Can anyone ID an output transformer's part number?
  176. Nestorovic NA-1 & Alpha-1 Schematics
  177. Data for 6BD2
  178. Ken Shindo R.I.P
  179. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  180. Seas Trym with SE KT88 amplifier?
  181. 845-Amp-IT-Coupled
  182. Data for 6RA3
  183. Miniwatt N3 not turning on!
  184. I need ideas on a can capacitor
  185. Help with tube for power supply...
  186. AVC vs TVC for 10y line preamp
  187. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  188. help on 845 amp
  189. High voltage power tube question
  190. Tribute OPT for PSE 300B
  191. Floating Paraphase.
  192. 6Q7G as driver in RH807
  193. Custom tubes4hifi m-125 monoblocks
  194. Antique Audio Preamlifier made in USA
  195. directly heated tube rectifiers
  196. Biasing a 12EA6 low voltage pentode
  197. Power supply doubt
  198. Vinyl Savor's Octal 6GL7 preamp?
  199. 837 tube
  200. Tone control bypass (Kontakt KT-7)
  201. drdwers
  202. Amplifier Sensitivity?
  203. identify nickel laminations
  204. Recapping Vintage EL84 amp
  205. opinion on dynaco mark VI
  206. How can i have 450 Volts ?
  207. Balanced Preamp
  208. ecc99-300b
  209. Question about the tube specs/testing?
  210. Transformer Winding Configuration, Hafler 2,815,402
  211. PSU with SS Choke for Loftin-White 2a3.
  212. HP 8903 Pete Millet's Software on Window 8 ?
  213. Cathode Destruction
  214. Earth SuperBass B-2000 bass head info needed
  215. More radio shack dissapointment
  216. What to do with transformer secondary when used as a choke?
  217. Slight transformer buzzing in Engineers Amp
  218. Couple Gyrator Questions
  219. Shishido/Loftin-White 2A3/45 Extasy..
  220. When is a tube not a Valve?
  221. Relay Recommendataion
  222. 6080 monotriod amplifier
  223. Tetra Sans PS Phono Stage Power Supply
  224. transformer test
  225. Could someone tell me more about the Mesa Boogie Strategy 400?
  226. New OTL headphone project with EC88 and 6080
  227. Philips Tube Code
  228. Edcor GXPP vs. CXPP
  229. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  230. Marshall Guitar Conversion 12AX7 Replacement
  231. affordable potted power transformer?
  232. Am I pushing the envelope too far? Layout concerns.
  233. Pete Millet's Uniamp
  234. 6211 for???
  235. Picking an output transformer: power vs. sound quality
  236. Tube emulation with transistors
  237. Altec 1570b Tube Swap
  238. Popping stepped attenuator
  239. 6922 driver/cathodyne - direct coupled
  240. Solid state rectifier with these tubes
  241. Need advice -- Improving an old tube amp
  242. KT88 SE developed a buzz
  243. Guidance on amp design
  244. OTL3 Autograph Series
  245. DAC Tube i/v help!
  246. Need help figuring out a tube amp!
  247. Parallel 12AT7 output stage design?
  248. 6SN7 SRPP
  249. Problem Bi-Amping
  250. Amplifier recommendation

Content Relevant URLs by vBSEO 3.3.2