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

  1. Roederstein replacements?
  2. Playin' with feedback
  3. schematic yaqin cd1 tube buffer
  4. Tubelab Simple SE questions
  5. tube preamp
  6. Filament current bias
  7. What Transformer is better ??
  8. DC-coupled CF driver pentode help!
  9. HHScott Forum?
  10. Delay relay
  11. Amp Gain Design Philosophy
  12. Converting a Stromberg Carlson AU-35 into a Bass guitar amp?
  13. Greetings - Watt Calculation
  14. AES Chocolates?
  15. Power supply filters - sim results
  16. Q............PP Ultrapath
  17. formula help
  18. DAC -> Amp with parallelled E182CC and Lundahl transformers -> 8ohm headphones
  19. Need an HV trafo? Try these:
  20. Driver for Musical Fidelity 550K
  21. Yaqin MC-10l
  22. help with 2 stage cathode follower
  23. B&K 747 tube tester
  24. Screen glowing?
  25. Grid 2 voltage affects
  26. Simple Tube Mono Block Tube Amp Schematic
  27. Optimizing a 807 PP amplifiers input stage and phase splitter...
  28. Chassis Layout Advice
  29. strange Stromberg Carlson
  30. lifting the earth
  31. passive xover w/ SET?
  32. Low gain tube amp?
  33. What to do with these parts?
  34. Regulated Heater on the 6SN7 Aikido Plate to Heater question
  35. SRPP with buffer - 1MOhm impedance?
  36. PSUD2 & g2 on 807 problem..?
  37. 230V transformer for a 832 PP project
  38. Mercury vapour rectifier for George
  39. Replacing 6L6 with 6V6: what changes needed?
  40. 4 tube line level pre?
  41. Tube Hybrid Amp Gain Calculation
  42. transformer coupled plate follower
  43. What does your system look like?
  44. Cascoding tubes
  45. Advice with modification of Beard power amp
  46. Harman Kardon TA5000-X power XFMR
  47. This happens when you hire a good designer.
  48. Test & Measurement interface for Soundcard
  49. Where to find large capacity high voltage caps?
  50. 1st Pass at 1st Phono Preamp; Comments?
  51. Transformers to try.
  52. Hum in phono pre - help please
  53. Output transformer cores
  54. Output transformer cores
  55. Presonus Bluetube makeover
  56. Tube Amp Channel Switching
  57. physically small twin triode tube
  58. Tubelab SE 2A3 _ Newbie question.
  59. TJ Full Music Factory Tour Now Online
  60. where to find cool vol control knobs?
  61. $200 6V6 Amp
  62. Audio Research Reference Phono, anyone?
  63. Review of Suppo Audio's first offering - EL84 Push Pull
  64. 6n23p(-ev)
  65. Akikido LSA/HPA 9-Pin or Akikido Octal which one?
  66. TUBE AMP 1946 worth grabbing?
  67. SE Newbie wants to go level 2
  68. Where To Purchase Tube Amp Parts in the UK
  69. The soul of a new "electrostatic" machine
  70. Transformer question
  71. Hybrid caps
  72. 6021 phono pre-amp
  73. bandmaster ab763 fx loop
  74. How to design input stage with specific input impedance/pot value
  75. Simple SE Grounding Question
  76. James OPT connections?
  77. DIY rtp5 help please?
  78. SS Followers to drive power tubes
  79. Sophia Electric EL34 Schematic
  80. DRD amplifier with CCS?
  81. Phono Preamp
  82. Dynaco ST-70 with a GSI board, Parts diagram and any info PLEASE
  83. transistor AC blocker
  84. PL519 Source
  85. Identify this mullard
  86. Suppo Audio -- New Chinese EL84 PP amp for CHEAP.
  87. Beard p35mkII schematics/photo photo
  88. Bias transformer question
  89. Anyone deliberately dial in 2nd harmonic?
  90. What is the sonic impact of SS CCS in tube equipment
  91. Phase help
  92. El34-kt88
  93. Transconductance amplifier based on hybrid cascode
  94. Chinese 6Z4, also those regulated supplies.
  95. Audion Reference restoration
  96. Anyone try a regulated PS in an Ultrapath preamp?
  97. Source for Resistor sets?
  98. High Zout tube preamps with ss power amps.
  99. PSUD II soft start
  100. About the 6AU6s
  101. Capacitor polarity question
  102. Audio Note line preamp question
  103. EL34 SE amp schematic
  104. looking for 12AT7 / ECC81 phase splitter
  105. 6AS7 getting rare?
  106. How to power up a new Build the first time
  107. power transformer for a 2a3se amp!
  108. 6DJ8 Tube Phono and Line Preamp
  109. ST-35 Build Using PC13 Boards Questions and Thoughts
  110. My new hybrid full single ended amplifier project on going
  111. Punch tools for making metal top plates on amps
  112. antique sound lab AQ1009-845 interstage transformer replacement
  113. The search for the ultimate 6SN7
  114. Looking for a good part web store
  115. Need your advice for tube amp case
  116. Questions about grounding
  117. power supply
  118. Strange idea for an output stage - comments requested
  119. Please comment on this EL84 PP design
  120. 1.5VDC Heater Supply For #26!?
  121. Looking for 300B or 2A3 design suggestions......gearing up for a new project
  122. original philips AD-9058
  123. Bench test equipment, What's yours?
  124. Gain calculating in 12ax7 guitar preamp
  125. Tube Lab SE Problem
  126. Tube Socket help, I'm looking at a few, but not sure which material to buy?
  127. Sweep tube info/specs
  128. Help for Tango 300b amp
  129. vacuum tubes type 10 and UX201A
  130. 6DQ5 specs for audio
  131. r-core output transformers...
  132. Isolation Transformer Question
  133. Buffer question?
  134. el95 pp amp for guitar
  135. Two positive rails from a center-tapped transformer?
  136. Help reqd - 115V PTX on 230V
  137. Replacing the cathode resistor with a current source in SE ?
  138. First 300b Design, Please comment
  139. 6AX4 datasheet question
  140. Bias Drift
  141. Recommend me a tube...
  142. What happens when Heater Cathode voltage is exceeded?
  143. 100uF Motor Run Caps
  144. HELP Schematics for RL 12 T 15
  145. Phono Stage
  146. TEE Vee Tube fans' SE Cf Amp
  147. Yaqin MC-10L losing volume
  148. Pl84 tubes
  149. AnalogMetric 6L6GC SE amp kit...thoughts about this kit?
  150. 5150 or slo 5-50w clone
  151. ECC88, warm up time
  152. Yaqin MC-10L Heater Voltage
  153. 6c33 otl amblifier
  154. self-oscillation in Dynaco ST-70
  155. computer tube tester
  156. Troubleshooting the decware se84 kit
  157. 6L6 PP problem
  158. First try at an Eagle Schematic/board
  159. opinions on decware zen kit
  160. Powerdrive for PP amp with local feedback and pentode driver ?
  161. having trouble calculating transconductance
  162. Philips console unit with reverb!
  163. 300BSET with Kimmel style mu driver ?
  164. Testing Mullard 12AU7 on Hickok 600A
  165. EL34/6CA7 driven 300B Schematics
  166. C450 Radio Craftsmen info needed
  167. Tubelab Simple SE v.2
  168. Magnetic shielding with aluminum
  169. lampizator dac
  170. AES is At It Again...
  171. Se Amp with Push Pull Transformer
  172. 6550 which breed can take the flog ?
  173. Chassis Question
  174. EL82 in triode with silverstepper (TVC)
  175. Joined the 12b4 line stage club. And worth it!
  176. ECL86/PCL86 Schematic
  177. Ambient temperature and tubes
  178. Vintage output transformers
  179. -ve grid voltage
  180. Ming Da MC-3008-A2 Mono Blocks
  181. V-Reg, Gyrator, Low (relative) voltage tubes
  182. Simple Tube amp
  183. Jolida 502A replace power switch
  184. Tubelab build selector switch question
  185. Matching tubes pot in old Fenders
  186. tubes supplier
  187. RadioDaze out of the tube business
  188. 8000+ hours on my Simple SE
  189. C-L-C-parallel-R-C
  190. musical power supplies
  191. Trimpots sound better than equivalent resistors for biasing?
  192. Anyone have a simple circuit for . .
  193. PP Tube Biasing, how good is good enough?
  194. Aesthetics
  195. Point to point, from scatch build of the K-12G
  196. What 6550 for Conrad MV75
  197. Motorboating phono input on Stromberg Carlson ASR433
  198. Sunn Sceptre: Weak Vibrato Cause?
  199. Pioneer sr-101
  200. 6AU6 in Push Pull: Opinions please
  201. Audionote M7 and Foreplay III
  202. vintage triode
  203. Help with design review wanted
  204. 6J52P pentode driver?
  205. a gutar amp I built
  206. Looking for a good valve preamp
  207. Anyone try the "Hazen mod" to G3 supressor grid
  208. 6L6GC -Which Shuguang can take the Heat?
  209. Using Toroidal PTs as tube OTs - methods and sources
  210. With a little help... KT88 PP UL Amp
  211. TechTube Featured In November AudioXpress
  212. Yaqin MC-100b channel imbalance
  213. Regulated Tube Preamp question
  214. Has anybody purchased from Mable Audio?
  215. PS voltage changes after capacitor replacement
  216. Non-magnetic bolts that hold an output transformer together
  217. Audio Innovations Series 500 Rewire
  218. Which audio electrolytics in tube voltages -- Your comments please !
  219. Some general opt questions.
  220. Looking for ANYTHING on the Audioromy 838 w/805A Tube..
  221. modifying zenith 7d31 amp console
  222. Questions on JE Labs transformer coupled line stage
  223. Onix/Melody SP3 Upgrades and Mods
  224. Motorboating with Regulated Supply
  225. 27 & 6SN7 Preamp - Crossover
  226. Budget 2A3?
  227. first go at design - pp
  228. Tube Amp for MP3 Player
  229. Sonic signatures of KT88, 300B, 805, 845 in SET & PP Configurations
  230. Marshall amp loses bias
  231. Building the Baby Huey EL84 pushpull amplifier
  232. Tube Voltage Regulator, Is it worth the effort?
  233. Best tubeamp for metal, tight bass
  234. Donor stereo 845 amp- now what!?
  235. "Optimal" output grid loading?
  236. wax poured out!
  237. Yet another do-nothing tOOb hack.
  238. What is a CCS - how do you design one?
  239. Strange Aikido problem when home power fluctuates
  240. Need to regulate 450v --> 300v
  241. new to the forum and looking for el86 info
  242. Why not invert the Tubelab SE board?
  243. Steve Bench Crossover Questions
  244. Audio Note M7 - 7F7 CCS
  245. Anyone have schema for katodcoupled 6C33 P-P?
  246. Ltspice and Valve models
  247. VTV Push-Pull 6SN7/KT88 Amp: DIY or China?
  248. How to identify type of bias used for my tube amp
  249. VR Tube Question
  250. Ampmaker Kits

Content Relevant URLs by vBSEO 3.3.2