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

  1. Detached getter?
  2. 12B4 Line Stage Amp
  3. How do I control volume on Dynaco ST-70?
  4. A few questions from a total novice.
  5. RCA preamp modification
  6. Bogen Challenger CH8 conversion...newb needs help!
  7. 6AU6A - Micropowered tube amp
  8. Yet another DHT filament supply
  9. where to find 5998 ?
  10. Mcintosh MA 2275 Schematic Required
  11. Help on sonic frontier sf line 1 preamp
  12. Voice of Music Reel-Reel schematic needed
  13. Old radio tubes
  14. 6KN6-PP-guitar slave
  15. Alpha Pots
  16. Bleeders values and ratings
  17. Tube audio circuit analysis
  18. Audio Research LS15 circuit and description
  19. OPT Trafo
  20. OPT test data?
  21. looking for the top 6080 amp schematics
  22. vu meter
  23. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  24. First Amp Build....!
  25. Will This work?
  26. Simple SE hookup wiring
  27. building a lit up tube display
  28. Push-Pull 6CL5's
  29. 2A3 power adjustments by channel
  30. Dead 12ax7 gain stage - Help...
  31. Best 300B amp schematics
  32. Stuck on Standby
  33. Newbee wants to learn about tube amps, etc...
  34. Recent Ad on Craig's List
  35. Pitfalls to warmup delay in DC coupled multiple railed amps?
  36. jan 6832 sub miniature tube
  37. Anti-Triode SEPP, how to do best?
  38. Some Help with Feedback Please!
  39. Cary 300SEI, likely capacitor failure
  40. Ballast Tube Current Source
  41. Ray Lumley m100 schematic needed
  42. Feedback question
  43. CMRR from parallel heaters?
  44. bevois valley clone from eico hf-12 iron..
  45. 27/37/56/76 plate dissipation
  46. Bell 2420 Amplifier Schematic Needed...
  47. How It Works Video
  48. Quad II build for guitar
  49. Have I got this right?
  50. any simple circuits I can add to a dac?
  51. neg feed back into v/slope stereo 2 pre-amp
  52. Using 12AX7 as input with feedback
  53. My first power supply
  54. Unknown tube similar to px4
  55. Anyone know of some ridiculously powerful triodes for class A useage?
  56. Bias Voltage
  57. Looking for tubes in Germany
  58. Substituting GU50 tubes for KT88
  59. Parts mined from an AKAI 1800L, what to do?
  60. Has anyone built this amp??????
  61. Another TubeLab SimpleSE Build
  62. Output transformers bandwidth/frequency range
  63. 6g6 preamp B+ at 400+????
  64. Which power supply would you use?
  65. Mullard Articles
  66. SimpleSE - motor run cap specs
  67. Can I reverse leads on an OT?
  68. 9 pin version of a 6SJ7?
  69. 6550 stock ?
  70. Fisher Tube Tuner Restoration Walkthrough
  71. Futterman H-3
  72. simple 6080/6as7 ppp/circlotron project
  73. My unbalanced preamp problem
  74. Gu50
  75. Any Simple CX310 SE schematics around?
  76. Peavey "Super Festival" VTA-400 - upgrading to 400W?
  77. Two EI Power Transformers Orientation?
  78. Question on Hybrid Bridge using 5AR4
  79. Recommend a project for a n00b
  80. Help! el34 8pin to 7pin conversion
  81. Converting Yarland FV-34AIII to Triode and Zero NF
  82. 5U4GB PS question
  83. 6X8 Pentode/Triode Musings
  84. DDD mfg co High Voltage power supply?
  85. Mistake on OPT connections : have I damaged something ?
  86. Looking for Jim Morrison Siren Song preamp schematic
  87. cap question....
  88. Ming Da MC368-B90
  89. single tube to drive 300ohm headphones
  90. Negative Feedback?
  91. Capacitor voltage ratings
  92. Possible to convert an oscilloscope into a tube amp?
  93. "Junkbox" 2A5 SE
  94. Power supply testing
  95. Tubeamp power supply - LC question
  96. tube amp coupling cap - audiospace
  97. Radford pentode-triode LTP splitter
  98. Tube bias testers, your opinions, please.
  99. Just saw this and thought I'd pass it along. . .
  100. 6KG6-EL509-EL519 Schematics wanted
  101. Difference between SE output transformer and push-pull output transformers
  102. Sourcing OPTs in Australia
  103. Is there a LOCTAL equiv to a 6V6?
  104. 10m45s LTspice model
  105. What circuit and tube to be used
  106. experimental 6L6G / 6BG6G amp design brainstorm
  107. 29GK6 heater current?
  108. Bench PS: stacking DC supplies
  109. Mr Liung schematics
  110. Want to build tube amp
  111. Runaway bias on Hot Rod Deville
  112. Back to back transformers.
  113. Using Battery for 300v B+ ?
  114. Anyone recognice this RIAA?
  115. Power cord replacement
  116. Negative LTP CCS supply
  117. c-j pre amp blowing tubes?
  118. first amp build
  119. Tube Mic Preamp - which Edcor transformer?
  120. Scaling the SLCF for other voltage - help
  121. Question about Allied & Hammond Power Transformer Ratings
  122. Education
  123. Tubelab SE with a 6BX7 to drive 845s
  124. Bias Ground
  125. Suggestions for RIAA preamp?
  126. External Test Points
  127. b2spice model request
  128. 12aY 7 preamp out
  129. 3B7 Loctal DHT
  130. Aikido All in One line stage amp PCB
  131. SS power supply.
  132. 6AU6 pentodes
  133. Parafeed with NP electrolytic?
  134. Charlie K - RIP
  135. Need some advise with a hum problem
  136. What resistor should I use?
  137. IN18 nixies
  138. Tubelab SE build and power supply questions.
  139. Quality of S5's K-12G in proposed system
  140. Gibson EH 150 restoration
  141. Transformer volume control questions.
  142. Power transformer star ground
  143. Shielding and chassis
  144. Side project - d3a and 6c41c
  145. Cathode-heater leakage
  146. Bell 2122 volume drop off
  147. -500V Maida regulator inquiry
  148. 7591 is glowing RED
  149. Hum problem
  150. Need PS schematic for Musical Machine
  151. Polystyrene capacitor as coupling in output tube stages
  152. Help needed with 10M45S integration .
  153. Ultrasonic Cleaning??????
  154. The daunting world of tubes (where to start)
  155. help 124.3 vac
  156. Bat VK3i buzzing noise
  157. Audioromy FU13 (813) diagram and mods
  158. any complete schematic for 6ak5?
  159. Weird fuzz from Aikido Pre, HELP!
  160. Question about tube amplifier.
  161. 811a rating question
  162. Anode chokes DIY?
  163. EI laminations in Europe
  164. Needed: transformer core materials cobalt nickel
  165. Anybody from Italy - please help
  166. Bogen AP35 amp problem
  167. Question about a VR screen supply
  168. DIY Amp Contest in Japan
  169. Hot 5AR4/GZ34 arcing on powerup surge?
  170. Rh84 Ptx
  171. Buzz. Grounding-related?
  172. 50/60Hz Hum - Your Expert Opinion Please
  173. Static Gm test
  174. High Voltage negative regulators
  175. where do i find old tube car radio schematics?
  176. Burned Up Transformer in HiFi 6p3p Tube Amplifier
  177. capacitors
  178. Wire Types
  179. Weird EH12AY7 Problem
  180. Pot and knob compatability
  181. ECC8100 and ECC2000
  182. DHT experts, i need your help
  183. transformers
  184. Vetruvio class-A
  185. PP to balanced input
  186. KT88 AB2 Experiences
  187. Group buy pulse check for Pete Millett tube crossover PCB
  188. Calculating operating point of a DHT
  189. upgrades, mods to JADIS JA-200, JPS2 and JPS3
  190. McIntosh MC-3500 Schematic Information
  191. Use 2X SE output transformers fo 1x PP
  192. 12B4a spice model.
  193. Help identifying a capacitor
  194. recommended a tube amp for Celestron Studio Ditton 66's
  195. Help needed with bias circuit
  196. 220 Mega Ohm Resistor - Really
  197. How to bias DH dual triodes?
  198. Any of these tubes good for audio applications?
  199. DIY AN M7 need help !!!
  200. Need schematic for Bell 2420 amp
  201. new SimpleSE build
  202. My Citation II Rebuild
  203. KT88 cathode resistors?
  204. Dynaco ST35 boards
  205. Triode strapping a 6V6 (or any tetrode/pentode, really)
  206. ECC 83 + ELL 80 maybe?
  207. need amp suggestions please.
  208. Phase splitter which tube?
  209. WANTED: 12B4A tubes
  210. re-stacking an output transformer
  211. A directly heated triode or Pentode SE amp on a Budget
  212. Annoying high frequency ringing from my 832 tube amp
  213. 30 Amp Knobs
  214. A question about audio interconnects for the ones here with such knowledge.
  215. Hi-end GM70 amplifier with only 2 stages
  216. Paragon
  217. Simple SE with CCS and fixed bias
  218. Idea(s) for simple HV regulated psu
  219. NOS Philips "miniwatt/dario" tubes
  220. Hybrid Class D with 6n6p tubes
  221. Any ideas how to estimate VA or mA of Power Tranny
  222. 6L6 Grid resistors??
  223. HeathKit W-2: Missing Tube
  224. Edcor CXSE25-8-5K Dimensions
  225. Bias Pots
  226. Negative Feedback
  227. scott 299D output transformers?
  228. chocke anode load, please explain me..
  229. Integrated HiEnd Amp
  230. Looking for advice/tips regarding simple SE amplifer
  231. Tube amps from vintage RTR's?
  232. componet upgrade
  233. What is "AA" ?
  234. question about twin triode tubes
  235. Building a preamp - somewhat new to tubes
  236. need some guidance about tube amplifiers
  237. Blackgate FK 10000 uF ??
  238. PT failure dangers
  239. Outer foil k40y-9
  240. sansui 1000a maintenance
  241. filter cap question
  242. add UL tap for 125ese
  243. Bogen D070 Amp - HELP w/ INFO.
  244. Humming asl 2004dt wave pre amp
  245. Cany anyone supply any info. about this amplifier?
  246. Low voltage 845SE with 300B driver
  247. Cabinet Help!!!!
  248. dc heater supply help
  249. gu-29 tube
  250. LTP question

Content Relevant URLs by vBSEO 3.3.2