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  1. 6N4P info
  2. Its alive!!! Aikido 5687
  3. Looking for advice,EL84 based Mono amp conversion/ restoration
  4. Looking for ideas
  5. Looking for curves for obscure tube
  6. tube life, soft start, cathode bias
  7. Triad N-68X Tranny for ^SN7 Aikido?
  8. RH84 with simple 5687 front end?
  9. Rickenbacker old amplifiers (b16 series)
  10. Aikido grounding scheme
  11. measuring voltages and currents simple se
  12. Beginner's luck -- Tubelab Simple SE on first try!
  13. 6CH6 find
  14. Shielded cables - success
  15. Heater-Cathode Voltage
  16. Battery powered tube preamps/effects (guitar)
  17. deliberately unmatching output tubes
  18. triode heater ground question
  19. 6sn7 alternative
  20. A tube amp that will drive 2 ohms or less...
  21. Looking for a simple circuit
  22. Why does my tube amp make a scratchy, popping sound?
  23. Fisher kx-100 Recitfire problem
  24. Potentiometers - USA
  25. Tube SE amplifier with 6P3S (russian tube)
  26. Plate dissipation
  27. Need help with tube models in LTSpice
  28. D3a pentode as driver? History of this tube?
  29. Tubelab SSE inrush current limiters.
  30. looking for some ideas. rebuilding heathkit w-3m amps.
  31. What's wrong with the 12AV7? Try this out!
  32. simple se and edcor gxse output transf question
  33. old tubes
  34. weird ef86 input stage in a Philips amp
  35. table radio w/ tube amp...in the designing process...anyone do this?
  36. Question: grid current related
  37. RH84 based amp
  38. My Aikido!!
  39. Tubelab Simple SE - Transformer Assistance
  40. ST70 clones
  41. Need help selecting a VR tube
  42. Help analysing Hammond organ circuit
  43. Stromberg-Carlson ASR-433
  44. WAHAHA! Our DIY tube amp is doneŁĄŁĄ
  45. Pentodes.
  46. making octal adapters
  47. How to cut ceramic
  48. Tubelab web site down for a day
  49. Trans wires in parallel or series?
  50. Tube socket for ECC88, drawing
  51. Richardson 5ar4
  52. Percy Audio / Still open? / Can't seem to get any response from them
  53. Resistor types in an amplifier
  54. simple se inrush limiter placement
  55. CRC Filter ?
  56. EICO 666 tube tester - What settings do you use?
  57. PCB edge connectors... what will they do to my sound?
  58. Tranny question
  59. Anyone here in contact with Pieter from Tribute?
  60. Fisher 500C with JJ 7591S - Optimum Bias Current?
  61. Power supply resistors power ratings
  62. Anyone tried this SE trafos?
  63. Adjustable B+ and Cathode Current linestage
  64. Possibility of Tube substitution trough MOSFETs
  65. G2 overvoltage ??
  66. Toroid transformer cover?
  67. Help me to think of name for a tube amplifier
  68. All DHT Phono Stage
  69. How Set up Aria Mini 6P14?
  70. new build - abdellah SE KT88
  71. Sources for enclosures, parts, standoffs, tubing, etc?
  72. Duncan PSUII question
  73. Bench Phono Pre Layout
  74. Imd
  75. Line Level tube
  76. Wanting to start a DIY tube amp
  77. ARC VT100 driver adjustment
  78. Valve Amplifier
  79. SE OPT's in India
  80. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  81. What is a "gridless control" tube ?
  82. simple se ground to speaker wire?
  83. Polytone Mini-brute II
  84. New 6N6P linestage
  85. Split supply, arrangement of gain and phase splitter tubes
  86. New Hybrid Amp with multiple inputs: Little Singer H-30A
  87. Help with my Transformer - vibrating
  88. Ultralinear fender?
  89. Quick transformer question
  90. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  91. Oddwatt / Oddblock Builder's Thread
  92. Tube output stage for Buffalo Saber 32-bit DAC?
  93. Silvertone Multiplex Stereo Model No. 4092 Questions
  94. 6SJ7(6J8) + 6v6 (6P6S) SE
  95. Wavebourn Tower-III High-end hybrid amp
  96. Question - Closest Russian Analog of 12BH7A
  97. Help understanding the PowerDrive circuit anaylsis
  98. Aikido pre
  99. Fixed bias: Pots near supply or tubes?
  100. Oh, those 12AU7s again...
  101. Plitron LOW Power OPT...
  102. Has anyone used The Guiguang 300B?
  103. anyone have any el86 circuits laying around?
  104. ok, power supply question, 230v - 117v conversion
  105. Big lot of tubes purchased this morning
  106. Tamura HM-1
  107. Tube Amp Design Question...
  108. Cathode Bias questions
  109. Tube Hybrid Shunt Regulator ... will this even work?
  110. Forgive me TubeLab ... I have sinned
  111. Broskie regulator oscillates
  112. Yushang-Audio Classic 16.6
  113. Tube PreAmplifier Kit suggestions..
  114. Sourcing Chassis Access Panels
  115. Running 4 ohm speakers with my Simple SE
  116. YAQIN SD-32A Tube CD/HDCD Player
  117. Cavalli OCL Buffer
  118. wooohooo! Three Rowe AMI amps for $200NZD!
  119. Quick Volume pot question
  120. Basic choke quality/sonic benefit questions
  121. Tubelab SE buzzing noise from the speaker
  122. lighspeed attenuator w/Simple SE AMP
  123. Tube rectifiers for Dummies
  124. help on a SE 4 channel tube amp for auto?
  125. Audio Output Transformers
  126. K-502 Help
  127. High gain guitar preamp kits!
  128. First post, first project RH84
  129. Source for tube cages?
  130. Simple SE optimum layout for hum
  131. Audio Transformers - Help
  132. Gran Tenor
  133. Toroidal Output Tranformers
  134. Cathode Follower confusion
  135. Tube newbie problem
  136. Replacement of KT88's. No mods' necessary?
  137. Phase splitter types
  138. Yaqin VK-2100 mods
  139. Heptode oscillators
  140. tube amp repair in DFW area
  141. A novice scope user - measuring noise?
  142. Hickok 600A & KT88
  143. Multifilar winding
  144. Measuring Hi-Fi Amplifiers
  145. Help with 30A5 tube amp schematic
  146. simple se troubleshooting
  147. 6SN7 operating points input gain stage and concertina
  148. looking for pentodes for scope deflection
  149. Cary 845 schematics
  150. newbie simple SE issue
  151. Power Transformer 110/230V Windings Question
  152. OPT Voltage spike protection with zeners
  153. IRIS OTL info
  154. Precise 111 tube tester - missing tubes
  155. ping yves
  156. Filters
  157. 2X2 as amplifier rectifier
  158. SPMSU for heater supplies
  159. Shipping Tube Gear
  160. Amplifier squeel at zero volume
  161. mercury rectifier for electrostatic bias
  162. My little coupling-cap-test in a UL-70W-Amp
  163. Electra-Print 300BDRD
  164. K-502... upgrading the OPT's with Hammonds
  165. Tube eq or tone control - how to design it?
  166. Help, strange glowing in KT88
  167. Need opinions about this tube circuit
  168. Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....
  169. Max current for Edcore GXSE10-8-2.5K
  170. And for the man who has everything....
  171. 1J6G recommended operating point?
  172. DHT bias and filament supply in one?
  173. Tubelab Simple SE Sound Quality
  174. 3d amp modelling (for solidworks)
  175. RSC Stereo Ten.
  176. Weird Bias on Simple SE
  177. Help - noisy phono stage
  178. 2A3 Max Grid Current Rating?
  179. Futterman style 6AS7 OTL with other tubes
  180. Low/Mid-Watt Amps
  181. Calling all builders of the Swenson/Pimm HV Reg
  182. AZ1 problem: broken metal part
  183. More Grunt from Aikido Needed to drive PL509's
  184. Correct OPT and other adjustments on old Bogen amp
  185. Ebl 21 Se Amplifier
  186. OT primary impedance calculation
  187. Akai M5?
  188. Identify the DHT
  189. Fountek Altitude 3500, any opinions?
  190. 31 tube in output
  191. dynaco system- volume remains
  192. Left channel BAD in stereo! HELP please! It's my first tube set
  193. OPT with power transfrormer core
  194. 300b dpa
  195. IV single stage inverting Feedback Amp
  196. TechTubes - The return of Blackburn
  197. simple se how to wire a auxiliary cap
  198. Tradeoffs in analog circuit design, and so on...
  199. Has anyone Received The new Techtubes yet?
  200. 6P3S-E in place of 6V6
  201. EL34, KT88, High Voltage?, VTL..
  202. 100W 6L6 amp sounds harsh at high Volume
  203. Hickok 533 / 600 settings for 6GM8 / ECC86
  204. Need help: amp blowing fuses
  205. Best voltage reference device for a cascode BJT CCS?
  206. Tube power amp noise problem
  207. tube oscillator help.
  208. Finally have some big chokes, how would you use them?
  209. Tube amplifier
  210. Mesa Boogie bass amp quiet
  211. 12AX7 heater filament resistance
  212. Choke input LC chain questions..Q?, minload?
  213. LED bias for 12ax7 oscillator
  214. Yaqin VK-2100 hybrid running 4 ohm speakers
  215. VR shunt regulator or RC filter
  216. Screen Mode Mesh Plate?
  217. EL34 simple push pull class B : why 100W ?
  218. Scored Some Bendix 5992
  219. Tube Substitutions Online ???
  220. Resistor pack for tube amp
  221. Tube Phono Preamp PCB Ebay? are these any good
  222. Testing an EL84 as a 6V6
  223. Low Voltage (~16-20V) Tube
  224. Basic Oscilloscope question
  225. Cathodyne Questions
  226. 6922 for a Noob
  227. Cathodyne Phase splitter simulation problem?
  228. How would you improve this EL84 SE circuit?
  229. Power transformer HT/B+ voltages
  230. Help with cathode follower circuit
  231. RH84 bias change whith different el84 is use
  232. No more power transformers?
  233. K-502 Filament supply (or K-12M)
  234. **LOL** Chinese surround sound amp identification
  235. Tubelab SE driver gain
  236. MOSFET for power drive for low powered 845
  237. Aikido line & phono Guru's advice for a newbie pls
  238. Need Tube kits of above 75W Single Ended Class A amp
  239. First Project: 300B SET Monoblocks
  240. Where do you get those cool layout diagrams?
  241. Simple SE grounding -- metal spacers/standoffs?
  242. My Simple SE via Akihabara
  243. Power-On Time Delay Circuit
  244. GM-70 Build Issues
  245. Blue glass inside tubes
  246. Ruby Tuesdays
  247. Wich valve to start?
  248. Tubes that have round/curved plates. . .
  249. Calculating current capacity?
  250. AKAI 1710W R2R, OPT Question?

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