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. Tubelab SE with 2A3 Hum
  2. I need some help with the OPTs on a set of old 6V6GT monoblocks
  3. modified Headwise WCF headpone design
  4. 6em7 ,difference from brand ?
  5. Wavebourn Tower thread
  6. Sealed Lead Acid Batteries
  7. New ebay record!
  8. New ebay record!
  9. NFB, how to implement here?
  10. Recommended Mouser Electronics
  11. Utter novice looking for answers to easy questions:
  12. Hum Troubleshooting on My Tubelab SE with 2A3
  13. Trying to understand Power Supplies - The first Cap in a CRCRC
  14. 5687=e182cc???
  15. Series wire Antek Secondaries
  16. 300bxls vs mosfet :)
  17. 6N4P info
  18. Its alive!!! Aikido 5687
  19. Looking for advice,EL84 based Mono amp conversion/ restoration
  20. Looking for ideas
  21. Looking for curves for obscure tube
  22. tube life, soft start, cathode bias
  23. Triad N-68X Tranny for ^SN7 Aikido?
  24. RH84 with simple 5687 front end?
  25. Aikido grounding scheme
  26. measuring voltages and currents simple se
  27. Beginner's luck -- Tubelab Simple SE on first try!
  28. 6CH6 find
  29. Shielded cables - success
  30. Heater-Cathode Voltage
  31. deliberately unmatching output tubes
  32. triode heater ground question
  33. 6sn7 alternative
  34. A tube amp that will drive 2 ohms or less...
  35. Looking for a simple circuit
  36. Why does my tube amp make a scratchy, popping sound?
  37. Fisher kx-100 Recitfire problem
  38. Potentiometers - USA
  39. Tube SE amplifier with 6P3S (russian tube)
  40. Plate dissipation
  41. Need help with tube models in LTSpice
  42. D3a pentode as driver? History of this tube?
  43. Tubelab SSE inrush current limiters.
  44. looking for some ideas. rebuilding heathkit w-3m amps.
  45. What's wrong with the 12AV7? Try this out!
  46. simple se and edcor gxse output transf question
  47. old tubes
  48. weird ef86 input stage in a Philips amp
  49. table radio w/ tube amp...in the designing process...anyone do this?
  50. Question: grid current related
  51. RH84 based amp
  52. My Aikido!!
  53. Tubelab Simple SE - Transformer Assistance
  54. ST70 clones
  55. Need help selecting a VR tube
  56. Help analysing Hammond organ circuit
  57. Stromberg-Carlson ASR-433
  58. WAHAHA! Our DIY tube amp is doneŁĄŁĄ
  59. Pentodes.
  60. making octal adapters
  61. How to cut ceramic
  62. Tubelab web site down for a day
  63. Trans wires in parallel or series?
  64. Tube socket for ECC88, drawing
  65. Richardson 5ar4
  66. Percy Audio / Still open? / Can't seem to get any response from them
  67. Resistor types in an amplifier
  68. simple se inrush limiter placement
  69. CRC Filter ?
  70. EICO 666 tube tester - What settings do you use?
  71. PCB edge connectors... what will they do to my sound?
  72. Tranny question
  73. Anyone here in contact with Pieter from Tribute?
  74. Fisher 500C with JJ 7591S - Optimum Bias Current?
  75. Power supply resistors power ratings
  76. Anyone tried this SE trafos?
  77. Adjustable B+ and Cathode Current linestage
  78. Possibility of Tube substitution trough MOSFETs
  79. G2 overvoltage ??
  80. Toroid transformer cover?
  81. Help me to think of name for a tube amplifier
  82. All DHT Phono Stage
  83. How Set up Aria Mini 6P14?
  84. new build - abdellah SE KT88
  85. Sources for enclosures, parts, standoffs, tubing, etc?
  86. Duncan PSUII question
  87. Bench Phono Pre Layout
  88. Imd
  89. Line Level tube
  90. Wanting to start a DIY tube amp
  91. ARC VT100 driver adjustment
  92. Valve Amplifier
  93. SE OPT's in India
  94. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  95. What is a "gridless control" tube ?
  96. simple se ground to speaker wire?
  97. Polytone Mini-brute II
  98. New 6N6P linestage
  99. Split supply, arrangement of gain and phase splitter tubes
  100. New Hybrid Amp with multiple inputs: Little Singer H-30A
  101. Help with my Transformer - vibrating
  102. Quick transformer question
  103. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  104. Oddwatt / Oddblock Builder's Thread
  105. Tube output stage for Buffalo Saber 32-bit DAC?
  106. Silvertone Multiplex Stereo Model No. 4092 Questions
  107. 6SJ7(6J8) + 6v6 (6P6S) SE
  108. Wavebourn Tower-III High-end hybrid amp
  109. Question - Closest Russian Analog of 12BH7A
  110. Help understanding the PowerDrive circuit anaylsis
  111. Aikido pre
  112. Fixed bias: Pots near supply or tubes?
  113. Oh, those 12AU7s again...
  114. Plitron LOW Power OPT...
  115. Has anyone used The Guiguang 300B?
  116. anyone have any el86 circuits laying around?
  117. ok, power supply question, 230v - 117v conversion
  118. Big lot of tubes purchased this morning
  119. Tamura HM-1
  120. Tube Amp Design Question...
  121. Cathode Bias questions
  122. Tube Hybrid Shunt Regulator ... will this even work?
  123. Forgive me TubeLab ... I have sinned
  124. Broskie regulator oscillates
  125. Yushang-Audio Classic 16.6
  126. Tube PreAmplifier Kit suggestions..
  127. Sourcing Chassis Access Panels
  128. Running 4 ohm speakers with my Simple SE
  129. Cavalli OCL Buffer
  130. wooohooo! Three Rowe AMI amps for $200NZD!
  131. Quick Volume pot question
  132. Basic choke quality/sonic benefit questions
  133. Tubelab SE buzzing noise from the speaker
  134. lighspeed attenuator w/Simple SE AMP
  135. Tube rectifiers for Dummies
  136. help on a SE 4 channel tube amp for auto?
  137. Audio Output Transformers
  138. K-502 Help
  139. First post, first project RH84
  140. Source for tube cages?
  141. Simple SE optimum layout for hum
  142. Audio Transformers - Help
  143. Gran Tenor
  144. Toroidal Output Tranformers
  145. Cathode Follower confusion
  146. Tube newbie problem
  147. Replacement of KT88's. No mods' necessary?
  148. Phase splitter types
  149. Yaqin VK-2100 mods
  150. Heptode oscillators
  151. tube amp repair in DFW area
  152. A novice scope user - measuring noise?
  153. Hickok 600A & KT88
  154. Multifilar winding
  155. Measuring Hi-Fi Amplifiers
  156. Help with 30A5 tube amp schematic
  157. simple se troubleshooting
  158. 6SN7 operating points input gain stage and concertina
  159. looking for pentodes for scope deflection
  160. Cary 845 schematics
  161. newbie simple SE issue
  162. Power Transformer 110/230V Windings Question
  163. OPT Voltage spike protection with zeners
  164. IRIS OTL info
  165. Precise 111 tube tester - missing tubes
  166. ping yves
  167. Filters
  168. 2X2 as amplifier rectifier
  169. SPMSU for heater supplies
  170. Shipping Tube Gear
  171. Amplifier squeel at zero volume
  172. mercury rectifier for electrostatic bias
  173. My little coupling-cap-test in a UL-70W-Amp
  174. Electra-Print 300BDRD
  175. K-502... upgrading the OPT's with Hammonds
  176. Tube eq or tone control - how to design it?
  177. Help, strange glowing in KT88
  178. Need opinions about this tube circuit
  179. Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....
  180. Max current for Edcore GXSE10-8-2.5K
  181. And for the man who has everything....
  182. 1J6G recommended operating point?
  183. DHT bias and filament supply in one?
  184. Tubelab Simple SE Sound Quality
  185. 3d amp modelling (for solidworks)
  186. RSC Stereo Ten.
  187. Weird Bias on Simple SE
  188. Help - noisy phono stage
  189. 2A3 Max Grid Current Rating?
  190. Futterman style 6AS7 OTL with other tubes
  191. Low/Mid-Watt Amps
  192. Calling all builders of the Swenson/Pimm HV Reg
  193. AZ1 problem: broken metal part
  194. More Grunt from Aikido Needed to drive PL509's
  195. Correct OPT and other adjustments on old Bogen amp
  196. Ebl 21 Se Amplifier
  197. OT primary impedance calculation
  198. Akai M5?
  199. Identify the DHT
  200. Fountek Altitude 3500, any opinions?
  201. 31 tube in output
  202. dynaco system- volume remains
  203. Left channel BAD in stereo! HELP please! It's my first tube set
  204. OPT with power transfrormer core
  205. 300b dpa
  206. IV single stage inverting Feedback Amp
  207. TechTubes - The return of Blackburn
  208. simple se how to wire a auxiliary cap
  209. Tradeoffs in analog circuit design, and so on...
  210. Has anyone Received The new Techtubes yet?
  211. 6P3S-E in place of 6V6
  212. EL34, KT88, High Voltage?, VTL..
  213. 100W 6L6 amp sounds harsh at high Volume
  214. Hickok 533 / 600 settings for 6GM8 / ECC86
  215. Need help: amp blowing fuses
  216. Best voltage reference device for a cascode BJT CCS?
  217. Tube power amp noise problem
  218. tube oscillator help.
  219. Finally have some big chokes, how would you use them?
  220. Tube amplifier
  221. 12AX7 heater filament resistance
  222. Choke input LC chain questions..Q?, minload?
  223. LED bias for 12ax7 oscillator
  224. Yaqin VK-2100 hybrid running 4 ohm speakers
  225. VR shunt regulator or RC filter
  226. Screen Mode Mesh Plate?
  227. EL34 simple push pull class B : why 100W ?
  228. Scored Some Bendix 5992
  229. Tube Substitutions Online ???
  230. Resistor pack for tube amp
  231. Tube Phono Preamp PCB Ebay? are these any good
  232. Testing an EL84 as a 6V6
  233. Low Voltage (~16-20V) Tube
  234. Basic Oscilloscope question
  235. Cathodyne Questions
  236. 6922 for a Noob
  237. Cathodyne Phase splitter simulation problem?
  238. How would you improve this EL84 SE circuit?
  239. Power transformer HT/B+ voltages
  240. Help with cathode follower circuit
  241. RH84 bias change whith different el84 is use
  242. No more power transformers?
  243. K-502 Filament supply (or K-12M)
  244. **LOL** Chinese surround sound amp identification
  245. Tubelab SE driver gain
  246. MOSFET for power drive for low powered 845
  247. Aikido line & phono Guru's advice for a newbie pls
  248. Need Tube kits of above 75W Single Ended Class A amp
  249. First Project: 300B SET Monoblocks
  250. Where do you get those cool layout diagrams?

Content Relevant URLs by vBSEO 3.3.2