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 99 100 101 102 103 104 105

  1. Chassis Layout & PS questions
  2. help needed for 1st DIY tube amp - Sakuma 845 SE
  3. Ideas for 4v filament triodes/pentodes
  4. Comments on Power Amp Viability
  5. Balanced active crossover advice
  6. The Tube Center
  7. Help1 with a 3 channel 2a3 amplifier
  8. volume control hum/noise
  9. PS choke magnetic induction
  10. Circlotron power supply question
  11. Autoformer as choke?
  12. E182CC
  13. Fender Hotrod Deville 212
  14. Grundig Fine Arts OTL Amplifier
  15. Damper diodes, 6ax4 and or 6w4?
  16. Knight 333 / Pioneer SX 34B info needed.
  17. Gargantuan Linestage Output Capacitors
  18. Quad II Restoration
  19. Help identifying a tube.
  20. Tube filaments in series?
  21. Design of Resonant Input Choke PSU
  22. Dissimilar triode
  23. How important is the quality of a triode used as a cathode follower
  24. EL34B tubes
  25. Why not so common to split dual triodes between channels?
  26. In search of power supply schematic for phono preamp
  27. General Electric vs Toshiba 6L6's
  28. Audio Research Dual 75 Capacitor Source?
  29. Choosing A Cathode bypass capacitor
  30. 12AU7 SRPP buffer suggestions
  31. Pentode/triode switch question
  32. Lundahll 1669A Secondary voltage???
  33. Substituting tube rectifiers by silicon
  34. newbie question: is the connection to the output xformer somewhat odd?
  35. All quiet on the SN front - about darned time!
  36. Estimating power output
  37. Looking for KT88 Amplifier Schematic by Mikael Abdellah
  38. Comments on passive pre and cables
  39. curvecaptor
  40. 6b4g pushpull build!newbie
  41. Need help; I have "dog leg" shaped waveform on my amp
  42. Output Transformer Question?
  43. Urgent OT HELP needed ASAP please
  44. Questions on Triode Strapping
  45. Morgan Jones BALANCED?
  46. What are your RFI precautions?
  47. Pentodes without cathodes?
  48. help me
  49. Good quality 6600 CT OT
  50. Local Hamfest score!!!
  51. Unknown Transformer
  52. S5 11g help
  53. 6SN7 pre-amp
  54. These tube can be use for amplifier
  55. Any pitfalls to choke derived CT?
  56. Audio Research D76A bias adjustment
  57. I meet Mr. Morgan Jones
  58. st70 electrolytic caps
  59. Thank you SY
  60. el84 1 channel stopped working help
  61. Help! Weak Bass!
  62. never say never - 300B amps...
  63. 6aq5 Screen resistor?
  64. L. Tatro farm radios from 1930's.
  65. Published/DIY ultra-low THD designs?
  66. EL84 SE auto bias
  67. Kofi Annan in: "Oscillatin' in the Bevois Valley'"
  68. Subwoofer connections
  69. 6/30L2 - What to do with them ?
  70. PIONEER SA-810 Tube Amp Schematics
  71. EF86 Gm
  72. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  73. Aria 6P14 makeover.
  74. switch for paralelled tube
  75. Curvecaptor with pentodes??
  76. Ground point for HF decoupling cap?
  77. Cancelling Harmonics
  78. Quiet Tube
  79. LM385 Adjustable voltage ref. diode as LED bias?
  80. Tubed Expression Pedal
  81. Any spice models around for AA5-esque battery tubes?
  82. Where to connect shielding
  83. Bogen K15 convert to guitar amp
  84. Help 805 As that the friend makes to straighten even gallbladder machine
  85. studiogear of the beatles
  86. 6AK5 Triode Curves
  87. twisted pair signal, source selector and ground buss???
  88. Tiny Amplifiers
  89. A newly aquired Hum
  90. many jan tubes
  91. is this the correct way of adding a volume control?
  92. Basic DIY Valve Phono Stage
  93. 5879 Experience?
  94. personal jobs
  95. Wanted Triode strapped curves for pentode of ECL82.
  96. source selector / volume hum in Aikido
  97. DHTs and Cathode Bias
  98. Best SET driver stage with lots of B+?
  99. Tube Library Pspice error
  100. referencing DC heater to B+
  101. Double floating Circlotron
  102. Supply Capacitors ?
  103. Sakuma style Tango project
  104. MC10L is good or not
  105. Eico HF-20 & Claus Byrith PS voltage & power draw
  106. Voltage Regulator Tubes
  107. EL34 triode-connected grounding-grid curves?
  108. Pls help me understand AR SP6 circuit
  109. good begginer project (ax84 v.s. boozhound)
  110. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  111. Trouble in a new DIY amp.
  112. Suitable Transformers
  113. PT winding calculations HELP
  114. How to measure frequency response with a PC?
  115. Pspice Tube Generation Software
  116. Tektron tube amplifier Italy made
  117. What to do with 2x Stancor A3830?
  118. REQ: Schematics and tweaking tips
  119. Jadis Da 60 & 80
  120. 6L6 for a beginner, plus ECL86/6GW8
  121. Leak Stereo 20 clone? possibly with 6V6?
  122. Any comment on Vacuum State dpa300b??
  123. Radiotron Designers Handbook
  124. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  125. 12B4 eqivalent : sonics-wise ?
  126. Any Eimac Scematics?
  127. What's a 6SL7 Good For?
  128. Where Can Buy 6c41
  129. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  130. use a 45 to drive a 45 ?
  131. Regulated heater reference
  132. Heater Elevation, how high?
  133. 6201 alternative
  134. 4V Tentlabs filament supply
  135. Difference between stereo & 2 monoblocks
  136. Parallel operation of triodes.
  137. input tubes using 6922?
  138. Looking for choices - affordable PP OPTs
  139. removing HF damping pF caps for guitar
  140. HH Scott Transformer #s
  141. Tips for rebuilding this amp?
  142. Need advice - what can I build with this power transformer?
  143. Source for high voltage electro caps
  144. differences between K-12M and K-12G kits?
  145. 12B4 Line Stage with Fixed Bias?
  146. split push-pull output stage
  147. any thoughts/explanation on the power supply for this circuit?
  148. Where to begin on a PP?
  149. ProAc Tablette 50 Speakers
  150. Recognizing wiped out ECC's 81,82,83
  151. So tell me.... how did YOU get into tubes??
  152. 7189 or 7819 el84 tube?
  153. Question about Star Grounding
  154. Employment offered; breadboarding a Tube Monoblock
  155. Need help: Looking for ECF80 preamp schematic
  156. a 5AR4 after a diode bridge? what is the purpose?
  157. 807 & Pe 06/40n
  158. Board layout design
  159. 12AX7, 12AU7 Substitution
  160. 200,000 Tubes for sale in Michigan
  161. Ground scheme
  162. Help on 6L6GC Triode PP..working points..
  163. A neat trick?
  164. Setup & Implementation of G Pimm's Self-Bias CCS
  165. Tube Preamp FM interference
  166. Parafeed 6EM7 with 2k load?
  167. Need Help on HEATHKIT W-5M Power Transformer
  168. Fully isolated oilbath transformer.
  169. small signal DHT or DHP like AVVT20/8?
  170. EL 84 Pentode Config.
  171. Amp Tubes
  172. Can I replace the 1M volume pot with a 100K one in my HK A300?
  173. what's a hum band?
  174. Tube phono pre-amp needed.
  175. U/L or triode mode on music angel amp
  176. Why do some people dislike ultralinear?
  177. Adaptive class A
  178. 6X4 Tube rectifier.
  179. AN Conquest Clone modification
  180. Beautiful tubes.
  181. Selectable EL34/6L6 Amp OT
  182. Simple circlotron amp
  183. 12AX7 how many is enough?
  184. samples of 300B in pse or pp
  185. power supply choke with a connection for AC ground?
  186. Heathkit A7E for guitar - preamp gain
  187. musical fidelity x10d schematic
  188. Pot Value
  189. Eico 666 (satan's choice) tube tester help.
  190. Finally built a subminiature guitar amp... now I need help!
  191. Minor crackling in new valves
  192. Matchless Lightning v Spitfire
  193. Aikido linestage Help Needed
  194. Scott 299A Schematic
  195. Q on PP & current mirrors
  196. Calculating PT headroom in PP class AB
  197. EL34 Failure
  198. Aikido Transformer recommendation
  199. No mains transformer B+ ?
  200. Help with horizontal mounting of 01-A and VR tubes
  201. twisted pair wiring on a tube amp
  202. Calculating SE Output Question
  203. Fixed-Bias Williamson EL34
  204. Bogen CHB-35 Preamp Mod
  205. resistors and sonic effects?
  206. tamura F-683 pole question
  207. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  208. vtl deluxe 300 mb
  209. Is SD a Schottky Diode in this schematic?
  210. Maida regulator
  211. 572B vs 845 vs 211 SE
  212. Yet Another EL84 Amp
  213. Regulator for tube pre
  214. referencing heater supply ground to B+
  215. One Question for Hammond 1620 output transformer
  216. Bias adjustment on Dynaco ST70
  217. To SRPP or not?
  218. Ampeg SVT-VR or SVT-CL Schematics
  219. 811 vs 811A?
  220. Bogen integrated stereo amp
  221. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  222. Broken 6L6WXT tube
  223. transformer questions
  224. Microphone With A Low Impedance Tube
  225. 6EM7 Push-Pull
  226. polarity of Xicon electrolytics
  227. SE EL84 question
  228. Slightly Different guitar amp question
  229. ST-70 Power Transformer Info
  230. My new quad SED EL34 arrived
  231. isolation transformer for 50C5 amp
  232. DSP and vacuum tubes (from Analog Devices)
  233. Asymmetrical P-P OPT Primary
  234. Gated beam discriminator "amplifier"
  235. PCB Mount Loctal Socket?
  236. "Zero bias"/ driving the grid positive
  237. Low Profile Power Transformer Help
  238. Lowering Gain on an Aikido Preamp
  239. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  240. Tube vs. SS CCS...
  241. Another "I need an amp recommendation" thread
  242. i am a new one here
  243. i am new ! can you help me
  244. Pentode CCS: Would somebody check my work?
  245. PSU for 12V DC heaters
  246. 50C5 Triode strapped?
  247. homemade faceplates
  248. Can I build this?
  249. Heptode audio preamp? ECH83
  250. E130L in Triode mode

Content Relevant URLs by vBSEO 3.3.2