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

  1. Tubelab sse transformer wires
  2. SE sound vs Ultra Linear sound
  3. Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5
  4. 6N6P or E182cc spice
  5. Ecl82
  6. Zeiss Ikon Dominar L Amplifier
  7. Beginners attempt at SE 6EM7
  8. Changing 300B Tubelab SE to accomidate 50 triodes
  9. Subbing a 5751 with a 5755
  10. HELP repair a Yamaha T100C combo
  11. Sophia Electric 300B tube
  12. Screen drive and other P-P experiments
  13. Amplifier using a 833A
  14. Circuit help
  15. How much mis-match can an OT take?
  16. SE load mismatch, 8 or 6 or 4 ohms?
  17. Magnavox 196-BA => RH 84 conversion
  18. Capacitor voltage ratings
  19. 40W class A push pull amp with JJ 2A3-40w possible?
  20. "Designing tube preamplifier" article
  21. Valve Tester Guru Help
  22. 6GB5 and Variants as Screen Driven Amps
  23. Gyrator Question
  24. Suggestion Please - Curcuit Simulation & PCB Design Software
  25. Starting to understand.....
  26. Aureavox Arcana 81
  27. Impedance question
  28. spare transformer wires?
  29. Capacitors and maximum voltage ratings
  30. Do Sweep tubes Glow Blue?
  31. Any way to upgrade this circuit? (V. 40's phono amp.)
  32. About tube "matched pairs"
  33. Testing Gm without tube tester
  34. Best place to get Shuguang 300B tubes
  35. Old metal tubes
  36. LTSpice Simulation template?!
  37. 300B pushpull- A new schematic
  38. Drake transformer
  39. TL Audio VP-5051 Valve voice processor
  40. Vtl 750
  41. DC-coupling of tube stages
  42. ThermalTrak transistor application.
  43. weird old amp:need help
  44. Triode Electronics Mark III
  45. Scavenging a broken oscilloscope to turn it into a preamp ?
  46. Silmic caps in cathode bias. Any experience?
  47. Scott LK150 transformer
  48. With the Simple SE I lost 20lbs w/o diet or excercise and I feel great!
  49. Tube Amp / Pre-amp kit?
  50. anything that can go as a Rp.....
  51. Genelex gold lion el84 reissue - ARCING
  52. diy Ampeg preamp
  53. Bias Current Mythbuster?
  54. Exactness of feedback capacitors?
  55. 5608a
  56. You know that you are having a bad day when.......
  57. 1U5 amplifier design, Newbie
  58. 12AU7 Pre-amp Schematic Question
  59. Capacitor Question...
  60. Beam pentodes and suppressor-grid pentodes of same type
  61. Quick question about CT and FWB
  62. 46 and the Tubelab SE
  63. Frank's 6SN7 line stage / preamp with GlassWare PS-1?
  64. knobs, lights and switches?
  65. SimpleSE OP Hammond bigger than the 125ESE
  66. Speaker impedance linearisation
  67. Differential filter circuit: biasing problem
  68. Curves for 12AH7
  69. Schematic for Audio Note Japan Kassai
  70. Help with schematic understanding
  71. SEPP output transformer
  72. Fixed bias design question
  73. Strange bias circuit. WTF?
  74. 5687 preamp transformer
  75. Anyone know of a dual pentode suitable for a LTP.
  76. Output transformer current and power ratings
  77. Diodes to protect OT's..
  78. Simple SE: ???Dumb Tube Rectifier question???
  79. Speakers for tube amps
  80. Help on power supply
  81. Line output transformer question
  82. Solid vs stranded wire in amplifier circuits
  83. Screen Drive Push Pull ideas
  84. 12AT7/46 Direct Reactance Drive Amp
  85. Bridge rectifier vs Full wave rectifier
  86. Isolation Transformer Question
  87. Glow tubes as series regs ?
  88. Glow tube shunt reg stability
  89. Some interesting reading about Sweep tubes
  90. What is this?
  91. What's A "Timber bulb"?
  92. aikido/807PSE and local feedback
  93. Repairing paper in oil caps.
  94. Optoisolator compressor ideas
  95. Airgap for filament transformer ?
  96. Tube stereo for E 60 including TDA1541 cd player
  97. Bad Boy amplifier Tubelab.com style
  98. is there a typo in the Tubelab SE schematic?
  99. Theta Amp problem
  100. 12A_7 vs 6SN7EH vs EF86?
  101. Mixing two channels in the preamp or at the phase splitter?
  102. amp input cap for crossover
  103. Audio Transformer/Cathode Feedback Info
  104. Determining cathode resistor
  105. Tube Pin Schematic Question
  106. Simple SE blowing fuses
  107. Best looking tube?
  108. Identifying Stancor Power transformers
  109. HT crowbar
  110. "Bevois Valley" in triode, what to do with the feedback?
  111. Purple Glow
  112. When to use a grid leak resistor?
  113. Mcintosh MA 2275
  114. Marshall 18W clone (sort of)
  115. Cathode feedback on the simple SE
  116. Blowing output transformer
  117. Kenwood KW-44 hum
  118. Tube system for classical audio
  119. Novel method to reduce filament hum in SE Amp?
  120. Help with 6SN7 w/ CCS
  121. Fisher X-101-D
  122. best tube (not amp)
  123. Simple SE Cap and layout questions???
  124. Simple SE - one channel intermittent problem
  125. ML4/ML6 British triode
  126. transformer rubbish
  127. Identifying output transformer leads
  128. Grounding Aikido and F4
  129. Determining ratings for unknown Power Transformers
  130. Tube heaven - or tube hell?
  131. Fender "Evil Twin" Hi/Low output = same level
  132. Sub amp/speaker to compliment S5 electronics K 12 G tube amp
  133. Troubleshooting hum in 12b4 preamp.. finally almost done!!
  134. SE cathode bias question
  135. k-12G / K-12M with 4 Ohm speakers
  136. About united electron tube
  137. 6c33c-b & 6c33c-v
  138. would like a substitute for Sowter 3575-C
  139. My first tube project WIP
  140. Tube rectifiede +- supply...
  141. the buzzing from amplifiers
  142. MC prepre with submini tubes
  143. 12AU7 Preamp build
  144. Bias/ Plate dissipation question
  145. Has anyone screen driven an EL84?
  146. tube pre amp for phone stage
  147. 6080 se cathode follower
  148. Amplifier suggestions for EPA OPT please
  149. Which tube? How much power can it produce?
  150. Graaf GM20 mods - help!
  151. xpp amplifier question
  152. 520v in PP UL...?
  153. New ST-70 blowing 3 amp slow blow fuse
  154. Was There a Heathkit W-1M or WM?
  155. 8ohm speakers 4ohm tap
  156. Upgrading the Conrad Johnson Premier Fourteen preamp
  157. Noob's first build !!!!
  158. 6sf5gt ??
  159. Measuring technics practical, the allaround reference method?
  160. 2A3 or KT88 ?
  161. What to build with these tubes?
  162. line output transformer help
  163. 6L6GC Options and Flavors
  164. Chinese Buffer Amp, Useful?
  165. 6C33C SE Amp - Ideas on refinement?
  166. 6BM8 Equivalent
  167. Newbie wants to rebuild a Stromberg Carlson ASR-433
  168. RH84 questions
  169. VTL Manley 807 push pull ultra linear
  170. Seeking Pentode-Triode with a 12AX7 half...
  171. Modern tube amplifier designs?
  172. 6n6p transformer output impedance
  173. 814 triode curves
  174. Bias Question
  175. Building a variac
  176. Is my 300B tube dead?
  177. One channel quiet - any bright ideas?
  178. Saw them coming (stupid prices on ebay)
  179. EL36/6CM5 pp design critique
  180. Driving Raven R2 with tubes
  181. Does Anyone Know What This Is?
  182. Need help with tubes problem...
  183. 6V6GT push pull NFB resistor value
  184. Power cord for single ended triode
  185. Virtual chokes
  186. 12AU7 based preamp hums when output cable is touched!
  187. Possible Test equipment find.
  188. 6ak5-45
  189. Using coax for signal wiring?
  190. Chassis Plate Finish
  191. Schade84
  192. Fisher 800c selenium rectifier pictures
  193. Bass amp from spare parts
  194. Looking for tips on operating points for tubes in anode follower ...
  195. Transformer in the cathodes ??
  196. Fisher 800c static,crackle
  197. 19J6 replacement
  198. Newbie tube buffer kit
  199. Simple se parts, all needed?
  200. Any recommendations for tube for vari-mu compressor?
  201. AMC CVT 3030 Bias Procedure
  202. Cascading volumes on a 5C3 amp
  203. Anyone used a edcor cxpp100-ms-5k OT
  204. Noisy gain boost
  205. Troubleshooting hum issues with batteries?
  206. Rectifying Heater Supply
  207. tube heater over voltage!please help...
  208. rca 829b bias ? Audioromy 828
  209. 10k winding, 100k pot
  210. What is the definition of a 'good tube'?
  211. 3-stage DC-coupled Ampl
  212. 1946 Philco Tube Receiver
  213. A New Source for James Transformers
  214. Edcor Site Down? Gone? anyone know anything?
  215. Please suggest practical DIY uses for these BIG oil caps
  216. How to calculate DRD amps..
  217. PL-519 Tube - Tell me more please...
  218. Need ideas for amp with 2A3, One Electron UBT-3
  219. Favourites discrete brand for tube amp
  220. Pharmicia EPS500/400 Power supply - tube use
  221. Black Art Audio
  222. 12AX7/12BH7 Hammond Tube Preamp Project
  223. Dampen transformer endbells?
  224. Do I have DC on my AC line?
  225. GM-70 cathode feed SE amplifier
  226. Rogers cadet mk 2 newbie project experience required
  227. Mcintosh amps transformer rewinding, help needed please!
  228. Using an output tranny from a stereo for a single-ended amplifier ?
  229. 6336A Single Ended.
  230. UA 175 Urei 175
  231. Morgan Jones 5842 RIAA
  232. Question about current ratings of Hammond 300 series power transformers.
  233. Cathode Windings
  234. Phono stage for 12B4 amp [from previous thread]
  235. Looking for schematic of 26 WOT Preamp
  236. Transformer Lam Questions
  237. Schottky diode bias
  238. ACROSOUND direct-couple EL84 amplifier question
  239. RH807 CCS loaded
  240. Audio Note Kit 1 PSU question
  241. B&K 500 Tube Tester Calibration
  242. New kt88's or 6550
  243. Bias Supply resistors
  244. Incredible source for used transformers and parts!
  245. Reclaimed Hammond H100 PSU's
  246. Arc Vt-60 Cloned :-)
  247. First Time Pre Amp Build
  248. Tubelab SE 300B low level hum, help
  249. 845 - Progress so far
  250. Nube challange12AX7 to drive 6C4

Content Relevant URLs by vBSEO 3.3.2