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

  1. Has anyone used The Guiguang 300B?
  2. anyone have any el86 circuits laying around?
  3. ok, power supply question, 230v - 117v conversion
  4. Big lot of tubes purchased this morning
  5. Tamura HM-1
  6. Tube Amp Design Question...
  7. Cathode Bias questions
  8. Tube Hybrid Shunt Regulator ... will this even work?
  9. Forgive me TubeLab ... I have sinned
  10. Broskie regulator oscillates
  11. Yushang-Audio Classic 16.6
  12. Tube PreAmplifier Kit suggestions..
  13. Sourcing Chassis Access Panels
  14. Running 4 ohm speakers with my Simple SE
  15. YAQIN SD-32A Tube CD/HDCD Player
  16. Cavalli OCL Buffer
  17. wooohooo! Three Rowe AMI amps for $200NZD!
  18. Quick Volume pot question
  19. Basic choke quality/sonic benefit questions
  20. Tubelab SE buzzing noise from the speaker
  21. lighspeed attenuator w/Simple SE AMP
  22. Tube rectifiers for Dummies
  23. help on a SE 4 channel tube amp for auto?
  24. Audio Output Transformers
  25. K-502 Help
  26. High gain guitar preamp kits!
  27. First post, first project RH84
  28. Source for tube cages?
  29. Simple SE optimum layout for hum
  30. Audio Transformers - Help
  31. Gran Tenor
  32. Toroidal Output Tranformers
  33. Cathode Follower confusion
  34. Tube newbie problem
  35. Replacement of KT88's. No mods' necessary?
  36. Phase splitter types
  37. Yaqin VK-2100 mods
  38. Heptode oscillators
  39. tube amp repair in DFW area
  40. A novice scope user - measuring noise?
  41. Hickok 600A & KT88
  42. Multifilar winding
  43. Measuring Hi-Fi Amplifiers
  44. Help with 30A5 tube amp schematic
  45. simple se troubleshooting
  46. 6SN7 operating points input gain stage and concertina
  47. looking for pentodes for scope deflection
  48. Cary 845 schematics
  49. newbie simple SE issue
  50. Power Transformer 110/230V Windings Question
  51. OPT Voltage spike protection with zeners
  52. IRIS OTL info
  53. Precise 111 tube tester - missing tubes
  54. ping yves
  55. Filters
  56. 2X2 as amplifier rectifier
  57. SPMSU for heater supplies
  58. Shipping Tube Gear
  59. Amplifier squeel at zero volume
  60. mercury rectifier for electrostatic bias
  61. My little coupling-cap-test in a UL-70W-Amp
  62. Electra-Print 300BDRD
  63. K-502... upgrading the OPT's with Hammonds
  64. Tube eq or tone control - how to design it?
  65. Help, strange glowing in KT88
  66. Need opinions about this tube circuit
  67. Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....
  68. Max current for Edcore GXSE10-8-2.5K
  69. And for the man who has everything....
  70. 1J6G recommended operating point?
  71. DHT bias and filament supply in one?
  72. Tubelab Simple SE Sound Quality
  73. 3d amp modelling (for solidworks)
  74. RSC Stereo Ten.
  75. Weird Bias on Simple SE
  76. Help - noisy phono stage
  77. 2A3 Max Grid Current Rating?
  78. Futterman style 6AS7 OTL with other tubes
  79. Low/Mid-Watt Amps
  80. Calling all builders of the Swenson/Pimm HV Reg
  81. AZ1 problem: broken metal part
  82. More Grunt from Aikido Needed to drive PL509's
  83. Correct OPT and other adjustments on old Bogen amp
  84. Ebl 21 Se Amplifier
  85. OT primary impedance calculation
  86. Akai M5?
  87. Identify the DHT
  88. Fountek Altitude 3500, any opinions?
  89. 31 tube in output
  90. dynaco system- volume remains
  91. Left channel BAD in stereo! HELP please! It's my first tube set
  92. OPT with power transfrormer core
  93. 300b dpa
  94. IV single stage inverting Feedback Amp
  95. TechTubes - The return of Blackburn
  96. simple se how to wire a auxiliary cap
  97. Tradeoffs in analog circuit design, and so on...
  98. Has anyone Received The new Techtubes yet?
  99. 6P3S-E in place of 6V6
  100. EL34, KT88, High Voltage?, VTL..
  101. 100W 6L6 amp sounds harsh at high Volume
  102. Hickok 533 / 600 settings for 6GM8 / ECC86
  103. Need help: amp blowing fuses
  104. Best voltage reference device for a cascode BJT CCS?
  105. Tube power amp noise problem
  106. tube oscillator help.
  107. Finally have some big chokes, how would you use them?
  108. Tube amplifier
  109. Mesa Boogie bass amp quiet
  110. 12AX7 heater filament resistance
  111. Choke input LC chain questions..Q?, minload?
  112. LED bias for 12ax7 oscillator
  113. Yaqin VK-2100 hybrid running 4 ohm speakers
  114. VR shunt regulator or RC filter
  115. Screen Mode Mesh Plate?
  116. EL34 simple push pull class B : why 100W ?
  117. Scored Some Bendix 5992
  118. Tube Substitutions Online ???
  119. Resistor pack for tube amp
  120. Tube Phono Preamp PCB Ebay? are these any good
  121. Testing an EL84 as a 6V6
  122. Low Voltage (~16-20V) Tube
  123. Basic Oscilloscope question
  124. Cathodyne Questions
  125. 6922 for a Noob
  126. Cathodyne Phase splitter simulation problem?
  127. How would you improve this EL84 SE circuit?
  128. Power transformer HT/B+ voltages
  129. Help with cathode follower circuit
  130. RH84 bias change whith different el84 is use
  131. No more power transformers?
  132. K-502 Filament supply (or K-12M)
  133. **LOL** Chinese surround sound amp identification
  134. Tubelab SE driver gain
  135. MOSFET for power drive for low powered 845
  136. Aikido line & phono Guru's advice for a newbie pls
  137. Need Tube kits of above 75W Single Ended Class A amp
  138. First Project: 300B SET Monoblocks
  139. Where do you get those cool layout diagrams?
  140. Simple SE grounding -- metal spacers/standoffs?
  141. My Simple SE via Akihabara
  142. Power-On Time Delay Circuit
  143. GM-70 Build Issues
  144. Blue glass inside tubes
  145. Ruby Tuesdays
  146. Wich valve to start?
  147. Tubes that have round/curved plates. . .
  148. Calculating current capacity?
  149. AKAI 1710W R2R, OPT Question?
  150. Ringed Tube Grills / Guards ?
  151. Recommend me a warm, smooth sounding 6922, 6DJ8, ECC88 or equivalent
  152. Please help identify this tube - Shuguang 6922?
  153. Dedicated 6.3v filament transformer 240v primary
  154. can someone check this thread please
  155. Amp refurbishing question.....
  156. Tube mounting position
  157. 6N6P - recommended operating point
  158. Interstage transformer questions
  159. Help identifying resistor value
  160. New Audio Note M10
  161. K501 vs K12M
  162. what are these (i hope cheap) resistors ?
  163. Potentiometer value for 6SL7 input
  164. PSU Designer II question
  165. Lost Thread-High VOltage Regulated Power Supply
  166. 6B4G schematic - opinions please!!
  167. Plate current Question
  168. rh84 bias question.
  169. On/off LED wiring question
  170. Stabilized wood
  171. Heater to Cathode max voltage specs, including signal swings?
  172. Any 9- pin rectifier tubes with separate cathodes?
  173. Final checkout problems with Tubelab SE
  174. 6G-A4 anyone have a datasheet?
  175. Bias Protection Resistors in DC Coupled Amp
  176. EL84 push pull
  177. pcb printing companies
  178. Help! tube amp burnt?
  179. 43% UL connections
  180. Help with CATHODE resistor value on 6BM8 PP Amp
  181. SE EL34 schematic HELP: from two 6SL7's to One?
  182. no choke and transformers ratings
  183. Value of Resistors of EL34
  184. bass preamp redux
  185. Power Transformer spec questions. Will it work or burn up?
  186. These Hong Kong amps have me bummed
  187. Looking for a cheap dual pentode
  188. Adding panel meters to Simple SE?
  189. Building a 12B4 Line Stage
  190. Speaker sounds blown...but isn't
  191. Static noise in K-16LS
  192. Scratchy clicky noise coming from homemade 6L6 tube amp
  193. Rowe AMI jukebox amp
  194. Does this power supply make any sense to you?
  195. Zener Diode Question
  196. 829B as LTP?
  197. Need a little help with Aikido 6n1p/6n6p
  198. Power switch location..
  199. Mini Millet (starving student) and iPod??
  200. valve preamp for quad 303
  201. Paging Wavebourn - article on Russian caps...
  202. I'm about to drive a stake thru the heart of my Aikido linestage
  203. questions on Mikael Abdellah circuit optimized for EL34 triode operation
  204. Model 16LS Stereo Integrated Tube Amplifier
  205. hum on pre-amp when volume is turned up
  206. 813 RCA amplifier - 25w, class A1, single ended,2 tubes,Rout~1ohm
  207. Interesting circuit, filter question.
  208. Choke Voltage ratings
  209. Hole drills
  210. Major amp circuit redesign- need some expert advice
  211. Daft Hybrid Amp
  212. 6n18-v tube amp
  213. Old big/long plate 12AX7's & 12AT7's
  214. in progress
  215. JTM45 clone
  216. A good tube amplifier power supply
  217. Anyone compared electra-print SE:PP interstages to electra-print PSA-2 autoformers
  218. El34 Se
  219. Question on choke
  220. Simple SE output transformer: James or Edcor?
  221. Looking for beter EL34/6CA7 tubes for C-J MV55 amp
  222. SET tube replacement
  223. Some kind of buffer/preamp for my SS guitar amp fx loop
  224. VALVOLOZZO triode amp with toroids output trafo...help me
  225. Old amp kit making noise and its getting OLD.
  226. Another Tube pre query !
  227. Simple SE aux capacitor
  228. do 6h30 glow at the top only
  229. canadian source for triad choke?
  230. Fork vs. Sleeve Terminal Octal Sockets.
  231. Step down grid choke vs. interstage transformer
  232. Who knows James 6123HS parameters? Or where to ask
  233. Advantage of a FET-BJT CCS vs BJT only
  234. Question - PCB Design with Multisim/Ultiboard
  235. Trouble choke loading tube in regulated supply
  236. PSUD newbie: modeling Tubelab SE
  237. Bassman Schematic Alterations
  238. Fixed Bias adjustment
  239. web resource for tube pricing?
  240. Need help on Kenwood KR 7070
  241. 110v or 220v, how can you tell?
  242. Calling UK builders Simple SE, Pre & Phono advice
  243. Stoked about new volume control for my Simple SE
  244. Tubes Down Under...
  245. To anyone using 808s
  246. Grounded power supply cord on a transformerless amp ?
  247. Documenting SimpleSE FRED Problem
  248. PP KT88 Mono blocks?
  249. Looking for 6.3V 1A ccs heater supply for dht
  250. testing for the ratios on old opt's

Content Relevant URLs by vBSEO 3.3.2