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. Grid 2 voltage affects
  2. Simple Tube Mono Block Tube Amp Schematic
  3. Optimizing a 807 PP amplifiers input stage and phase splitter...
  4. Chassis Layout Advice
  5. strange Stromberg Carlson
  6. lifting the earth
  7. passive xover w/ SET?
  8. Low gain tube amp?
  9. What to do with these parts?
  10. Regulated Heater on the 6SN7 Aikido Plate to Heater question
  11. SRPP with buffer - 1MOhm impedance?
  12. PSUD2 & g2 on 807 problem..?
  13. 230V transformer for a 832 PP project
  14. Mercury vapour rectifier for George
  15. Replacing 6L6 with 6V6: what changes needed?
  16. 4 tube line level pre?
  17. Tube Hybrid Amp Gain Calculation
  18. transformer coupled plate follower
  19. What does your system look like?
  20. Cascoding tubes
  21. Advice with modification of Beard power amp
  22. Harman Kardon TA5000-X power XFMR
  23. This happens when you hire a good designer.
  24. Test & Measurement interface for Soundcard
  25. Where to find large capacity high voltage caps?
  26. 1st Pass at 1st Phono Preamp; Comments?
  27. Transformers to try.
  28. Hum in phono pre - help please
  29. Output transformer cores
  30. Output transformer cores
  31. Presonus Bluetube makeover
  32. Tube Amp Channel Switching
  33. physically small twin triode tube
  34. Tubelab SE 2A3 _ Newbie question.
  35. TJ Full Music Factory Tour Now Online
  36. where to find cool vol control knobs?
  37. $200 6V6 Amp
  38. Audio Research Reference Phono, anyone?
  39. Review of Suppo Audio's first offering - EL84 Push Pull
  40. 6n23p(-ev)
  41. Akikido LSA/HPA 9-Pin or Akikido Octal which one?
  42. TUBE AMP 1946 worth grabbing?
  43. SE Newbie wants to go level 2
  44. Where To Purchase Tube Amp Parts in the UK
  45. The soul of a new "electrostatic" machine
  46. Transformer question
  47. Hybrid caps
  48. 6021 phono pre-amp
  49. bandmaster ab763 fx loop
  50. How to design input stage with specific input impedance/pot value
  51. Simple SE Grounding Question
  52. James OPT connections?
  53. DIY rtp5 help please?
  54. SS Followers to drive power tubes
  55. Sophia Electric EL34 Schematic
  56. DRD amplifier with CCS?
  57. Phono Preamp
  58. Dynaco ST-70 with a GSI board, Parts diagram and any info PLEASE
  59. transistor AC blocker
  60. PL519 Source
  61. Identify this mullard
  62. Suppo Audio -- New Chinese EL84 PP amp for CHEAP.
  63. Beard p35mkII schematics/photo photo
  64. Bias transformer question
  65. Anyone deliberately dial in 2nd harmonic?
  66. What is the sonic impact of SS CCS in tube equipment
  67. Phase help
  68. El34-kt88
  69. Transconductance amplifier based on hybrid cascode
  70. Chinese 6Z4, also those regulated supplies.
  71. Audion Reference restoration
  72. Anyone try a regulated PS in an Ultrapath preamp?
  73. Source for Resistor sets?
  74. High Zout tube preamps with ss power amps.
  75. PSUD II soft start
  76. About the 6AU6s
  77. Capacitor polarity question
  78. Audio Note line preamp question
  79. EL34 SE amp schematic
  80. looking for 12AT7 / ECC81 phase splitter
  81. 6AS7 getting rare?
  82. How to power up a new Build the first time
  83. power transformer for a 2a3se amp!
  84. 6DJ8 Tube Phono and Line Preamp
  85. ST-35 Build Using PC13 Boards Questions and Thoughts
  86. My new hybrid full single ended amplifier project on going
  87. Punch tools for making metal top plates on amps
  88. antique sound lab AQ1009-845 interstage transformer replacement
  89. The search for the ultimate 6SN7
  90. Looking for a good part web store
  91. Need your advice for tube amp case
  92. Questions about grounding
  93. power supply
  94. Strange idea for an output stage - comments requested
  95. Please comment on this EL84 PP design
  96. 1.5VDC Heater Supply For #26!?
  97. Looking for 300B or 2A3 design suggestions......gearing up for a new project
  98. original philips AD-9058
  99. Bench test equipment, What's yours?
  100. Gain calculating in 12ax7 guitar preamp
  101. Tube Lab SE Problem
  102. Tube Socket help, I'm looking at a few, but not sure which material to buy?
  103. Sweep tube info/specs
  104. Help for Tango 300b amp
  105. vacuum tubes type 10 and UX201A
  106. 6DQ5 specs for audio
  107. r-core output transformers...
  108. Isolation Transformer Question
  109. Buffer question?
  110. el95 pp amp for guitar
  111. Two positive rails from a center-tapped transformer?
  112. Help reqd - 115V PTX on 230V
  113. Replacing the cathode resistor with a current source in SE ?
  114. First 300b Design, Please comment
  115. 6AX4 datasheet question
  116. Bias Drift
  117. Recommend me a tube...
  118. What happens when Heater Cathode voltage is exceeded?
  119. 100uF Motor Run Caps
  120. HELP Schematics for RL 12 T 15
  121. Phono Stage
  122. TEE Vee Tube fans' SE Cf Amp
  123. Yaqin MC-10L losing volume
  124. Pl84 tubes
  125. AnalogMetric 6L6GC SE amp kit...thoughts about this kit?
  126. 5150 or slo 5-50w clone
  127. ECC88, warm up time
  128. Yaqin MC-10L Heater Voltage
  129. 6c33 otl amblifier
  130. self-oscillation in Dynaco ST-70
  131. computer tube tester
  132. Troubleshooting the decware se84 kit
  133. 6L6 PP problem
  134. First try at an Eagle Schematic/board
  135. opinions on decware zen kit
  136. Powerdrive for PP amp with local feedback and pentode driver ?
  137. having trouble calculating transconductance
  138. Philips console unit with reverb!
  139. 300BSET with Kimmel style mu driver ?
  140. Testing Mullard 12AU7 on Hickok 600A
  141. EL34/6CA7 driven 300B Schematics
  142. C450 Radio Craftsmen info needed
  143. Tubelab Simple SE v.2
  144. Magnetic shielding with aluminum
  145. lampizator dac
  146. AES is At It Again...
  147. Se Amp with Push Pull Transformer
  148. 6550 which breed can take the flog ?
  149. Chassis Question
  150. EL82 in triode with silverstepper (TVC)
  151. Joined the 12b4 line stage club. And worth it!
  152. ECL86/PCL86 Schematic
  153. Ambient temperature and tubes
  154. Vintage output transformers
  155. -ve grid voltage
  156. Ming Da MC-3008-A2 Mono Blocks
  157. V-Reg, Gyrator, Low (relative) voltage tubes
  158. Simple Tube amp
  159. Jolida 502A replace power switch
  160. Tubelab build selector switch question
  161. Matching tubes pot in old Fenders
  162. tubes supplier
  163. RadioDaze out of the tube business
  164. 8000+ hours on my Simple SE
  165. C-L-C-parallel-R-C
  166. musical power supplies
  167. Trimpots sound better than equivalent resistors for biasing?
  168. Anyone have a simple circuit for . .
  169. PP Tube Biasing, how good is good enough?
  170. Aesthetics
  171. Point to point, from scatch build of the K-12G
  172. What 6550 for Conrad MV75
  173. Motorboating phono input on Stromberg Carlson ASR433
  174. Sunn Sceptre: Weak Vibrato Cause?
  175. Pioneer sr-101
  176. 6AU6 in Push Pull: Opinions please
  177. Audionote M7 and Foreplay III
  178. vintage triode
  179. Help with design review wanted
  180. 6J52P pentode driver?
  181. a gutar amp I built
  182. Looking for a good valve preamp
  183. Anyone try the "Hazen mod" to G3 supressor grid
  184. 6L6GC -Which Shuguang can take the Heat?
  185. Using Toroidal PTs as tube OTs - methods and sources
  186. With a little help... KT88 PP UL Amp
  187. TechTube Featured In November AudioXpress
  188. Yaqin MC-100b channel imbalance
  189. Regulated Tube Preamp question
  190. Has anybody purchased from Mable Audio?
  191. PS voltage changes after capacitor replacement
  192. Non-magnetic bolts that hold an output transformer together
  193. Audio Innovations Series 500 Rewire
  194. Which audio electrolytics in tube voltages -- Your comments please !
  195. Some general opt questions.
  196. Looking for ANYTHING on the Audioromy 838 w/805A Tube..
  197. modifying zenith 7d31 amp console
  198. Questions on JE Labs transformer coupled line stage
  199. Onix/Melody SP3 Upgrades and Mods
  200. Motorboating with Regulated Supply
  201. 27 & 6SN7 Preamp - Crossover
  202. Budget 2A3?
  203. first go at design - pp
  204. Tube Amp for MP3 Player
  205. Sonic signatures of KT88, 300B, 805, 845 in SET & PP Configurations
  206. Marshall amp loses bias
  207. Building the Baby Huey EL84 pushpull amplifier
  208. Tube Voltage Regulator, Is it worth the effort?
  209. Best tubeamp for metal, tight bass
  210. Donor stereo 845 amp- now what!?
  211. "Optimal" output grid loading?
  212. wax poured out!
  213. Yet another do-nothing tOOb hack.
  214. What is a CCS - how do you design one?
  215. Strange Aikido problem when home power fluctuates
  216. Need to regulate 450v --> 300v
  217. new to the forum and looking for el86 info
  218. Why not invert the Tubelab SE board?
  219. Steve Bench Crossover Questions
  220. Audio Note M7 - 7F7 CCS
  221. Anyone have schema for katodcoupled 6C33 P-P?
  222. Ltspice and Valve models
  223. VTV Push-Pull 6SN7/KT88 Amp: DIY or China?
  224. How to identify type of bias used for my tube amp
  225. VR Tube Question
  226. Ampmaker Kits
  227. P-P with some muscle
  228. buzz w/ nothing plugged into inputs. Goes away once jacked in.
  229. CV6 / CV1135 / E1148 / VT232 VHF oscillator triode data
  230. HELP HELP HELP mesa rectifier
  231. simple se with source selector
  232. Measuring tube/component temperature
  233. Parallel Single Ended Amplifier Design using Acro TO-290s?
  234. Elevate heater trouble
  235. Adjusting the sensitivity on a 6e2 magic eye tube
  236. tube amp for automobile / need ideas
  237. 6550A HF Amp
  238. problem - scratchy sound, rythmical
  239. eico st70 irons!what to do?
  240. How Lampizator CD tube player sound?
  241. Maestro soya amplificador
  242. Can I use my tube amp as a preamp ?
  243. Simple SE with 6BG6GA - magic smoke escapes...
  244. Shunt Cascode Power Valve Driver
  245. Did Siemens ever publish data for their own D3A ?
  246. Motor run caps as power supply filter
  247. Measure unknown choke?
  248. 6528a....HELP ME PLEASE...PLEASE..
  249. Are any of these tubes useful to me?
  250. Heaters The Key Too Sweet Tube Tone.

Content Relevant URLs by vBSEO 3.3.2