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  1. Decca Decola PX25 amp schematic
  2. Happy birthday....to me!
  3. Just tested the new E183CC
  4. Chassis mounting tubes off my PCB
  5. Tubelab SE with 2A3 Hum
  6. I need some help with the OPTs on a set of old 6V6GT monoblocks
  7. modified Headwise WCF headpone design
  8. 6em7 ,difference from brand ?
  9. Wavebourn Tower thread
  10. Sealed Lead Acid Batteries
  11. New ebay record!
  12. New ebay record!
  13. NFB, how to implement here?
  14. Recommended Mouser Electronics
  15. Utter novice looking for answers to easy questions:
  16. Hum Troubleshooting on My Tubelab SE with 2A3
  17. Trying to understand Power Supplies - The first Cap in a CRCRC
  18. 5687=e182cc???
  19. Series wire Antek Secondaries
  20. 300bxls vs mosfet :)
  21. 6N4P info
  22. Its alive!!! Aikido 5687
  23. Looking for advice,EL84 based Mono amp conversion/ restoration
  24. Looking for ideas
  25. Looking for curves for obscure tube
  26. tube life, soft start, cathode bias
  27. Triad N-68X Tranny for ^SN7 Aikido?
  28. RH84 with simple 5687 front end?
  29. Rickenbacker old amplifiers (b16 series)
  30. Aikido grounding scheme
  31. measuring voltages and currents simple se
  32. Beginner's luck -- Tubelab Simple SE on first try!
  33. 6CH6 find
  34. Shielded cables - success
  35. Heater-Cathode Voltage
  36. Battery powered tube preamps/effects (guitar)
  37. deliberately unmatching output tubes
  38. triode heater ground question
  39. 6sn7 alternative
  40. A tube amp that will drive 2 ohms or less...
  41. Looking for a simple circuit
  42. Why does my tube amp make a scratchy, popping sound?
  43. Fisher kx-100 Recitfire problem
  44. Potentiometers - USA
  45. Tube SE amplifier with 6P3S (russian tube)
  46. Plate dissipation
  47. Need help with tube models in LTSpice
  48. D3a pentode as driver? History of this tube?
  49. Tubelab SSE inrush current limiters.
  50. looking for some ideas. rebuilding heathkit w-3m amps.
  51. What's wrong with the 12AV7? Try this out!
  52. simple se and edcor gxse output transf question
  53. old tubes
  54. weird ef86 input stage in a Philips amp
  55. table radio w/ tube amp...in the designing process...anyone do this?
  56. Question: grid current related
  57. RH84 based amp
  58. My Aikido!!
  59. Tubelab Simple SE - Transformer Assistance
  60. ST70 clones
  61. Need help selecting a VR tube
  62. Help analysing Hammond organ circuit
  63. Stromberg-Carlson ASR-433
  64. WAHAHA! Our DIY tube amp is doneŁĄŁĄ
  65. Pentodes.
  66. making octal adapters
  67. How to cut ceramic
  68. Tubelab web site down for a day
  69. Trans wires in parallel or series?
  70. Tube socket for ECC88, drawing
  71. Richardson 5ar4
  72. Percy Audio / Still open? / Can't seem to get any response from them
  73. Resistor types in an amplifier
  74. simple se inrush limiter placement
  75. CRC Filter ?
  76. EICO 666 tube tester - What settings do you use?
  77. PCB edge connectors... what will they do to my sound?
  78. Tranny question
  79. Anyone here in contact with Pieter from Tribute?
  80. Fisher 500C with JJ 7591S - Optimum Bias Current?
  81. Power supply resistors power ratings
  82. Anyone tried this SE trafos?
  83. Adjustable B+ and Cathode Current linestage
  84. Possibility of Tube substitution trough MOSFETs
  85. G2 overvoltage ??
  86. Toroid transformer cover?
  87. Help me to think of name for a tube amplifier
  88. All DHT Phono Stage
  89. How Set up Aria Mini 6P14?
  90. new build - abdellah SE KT88
  91. Sources for enclosures, parts, standoffs, tubing, etc?
  92. Duncan PSUII question
  93. Bench Phono Pre Layout
  94. Imd
  95. Line Level tube
  96. Wanting to start a DIY tube amp
  97. ARC VT100 driver adjustment
  98. Valve Amplifier
  99. SE OPT's in India
  100. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  101. What is a "gridless control" tube ?
  102. simple se ground to speaker wire?
  103. Polytone Mini-brute II
  104. New 6N6P linestage
  105. Split supply, arrangement of gain and phase splitter tubes
  106. New Hybrid Amp with multiple inputs: Little Singer H-30A
  107. Help with my Transformer - vibrating
  108. Ultralinear fender?
  109. Quick transformer question
  110. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  111. Oddwatt / Oddblock Builder's Thread
  112. Tube output stage for Buffalo Saber 32-bit DAC?
  113. Silvertone Multiplex Stereo Model No. 4092 Questions
  114. 6SJ7(6J8) + 6v6 (6P6S) SE
  115. Wavebourn Tower-III High-end hybrid amp
  116. Question - Closest Russian Analog of 12BH7A
  117. Help understanding the PowerDrive circuit anaylsis
  118. Aikido pre
  119. Fixed bias: Pots near supply or tubes?
  120. Oh, those 12AU7s again...
  121. Plitron LOW Power OPT...
  122. Has anyone used The Guiguang 300B?
  123. anyone have any el86 circuits laying around?
  124. ok, power supply question, 230v - 117v conversion
  125. Big lot of tubes purchased this morning
  126. Tamura HM-1
  127. Tube Amp Design Question...
  128. Cathode Bias questions
  129. Tube Hybrid Shunt Regulator ... will this even work?
  130. Forgive me TubeLab ... I have sinned
  131. Broskie regulator oscillates
  132. Yushang-Audio Classic 16.6
  133. Tube PreAmplifier Kit suggestions..
  134. Sourcing Chassis Access Panels
  135. Running 4 ohm speakers with my Simple SE
  136. YAQIN SD-32A Tube CD/HDCD Player
  137. Cavalli OCL Buffer
  138. wooohooo! Three Rowe AMI amps for $200NZD!
  139. Quick Volume pot question
  140. Basic choke quality/sonic benefit questions
  141. Tubelab SE buzzing noise from the speaker
  142. lighspeed attenuator w/Simple SE AMP
  143. Tube rectifiers for Dummies
  144. help on a SE 4 channel tube amp for auto?
  145. Audio Output Transformers
  146. K-502 Help
  147. High gain guitar preamp kits!
  148. First post, first project RH84
  149. Source for tube cages?
  150. Simple SE optimum layout for hum
  151. Audio Transformers - Help
  152. Gran Tenor
  153. Toroidal Output Tranformers
  154. Cathode Follower confusion
  155. Tube newbie problem
  156. Replacement of KT88's. No mods' necessary?
  157. Phase splitter types
  158. Yaqin VK-2100 mods
  159. Heptode oscillators
  160. tube amp repair in DFW area
  161. A novice scope user - measuring noise?
  162. Hickok 600A & KT88
  163. Multifilar winding
  164. Measuring Hi-Fi Amplifiers
  165. Help with 30A5 tube amp schematic
  166. simple se troubleshooting
  167. 6SN7 operating points input gain stage and concertina
  168. looking for pentodes for scope deflection
  169. Cary 845 schematics
  170. newbie simple SE issue
  171. Power Transformer 110/230V Windings Question
  172. OPT Voltage spike protection with zeners
  173. IRIS OTL info
  174. Precise 111 tube tester - missing tubes
  175. ping yves
  176. Filters
  177. 2X2 as amplifier rectifier
  178. SPMSU for heater supplies
  179. Shipping Tube Gear
  180. Amplifier squeel at zero volume
  181. mercury rectifier for electrostatic bias
  182. My little coupling-cap-test in a UL-70W-Amp
  183. Electra-Print 300BDRD
  184. K-502... upgrading the OPT's with Hammonds
  185. Tube eq or tone control - how to design it?
  186. Help, strange glowing in KT88
  187. Need opinions about this tube circuit
  188. Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....
  189. Max current for Edcore GXSE10-8-2.5K
  190. And for the man who has everything....
  191. 1J6G recommended operating point?
  192. DHT bias and filament supply in one?
  193. Tubelab Simple SE Sound Quality
  194. 3d amp modelling (for solidworks)
  195. RSC Stereo Ten.
  196. Weird Bias on Simple SE
  197. Help - noisy phono stage
  198. 2A3 Max Grid Current Rating?
  199. Futterman style 6AS7 OTL with other tubes
  200. Low/Mid-Watt Amps
  201. Calling all builders of the Swenson/Pimm HV Reg
  202. AZ1 problem: broken metal part
  203. More Grunt from Aikido Needed to drive PL509's
  204. Correct OPT and other adjustments on old Bogen amp
  205. Ebl 21 Se Amplifier
  206. OT primary impedance calculation
  207. Akai M5?
  208. Identify the DHT
  209. Fountek Altitude 3500, any opinions?
  210. 31 tube in output
  211. dynaco system- volume remains
  212. Left channel BAD in stereo! HELP please! It's my first tube set
  213. OPT with power transfrormer core
  214. 300b dpa
  215. IV single stage inverting Feedback Amp
  216. TechTubes - The return of Blackburn
  217. simple se how to wire a auxiliary cap
  218. Tradeoffs in analog circuit design, and so on...
  219. Has anyone Received The new Techtubes yet?
  220. 6P3S-E in place of 6V6
  221. EL34, KT88, High Voltage?, VTL..
  222. 100W 6L6 amp sounds harsh at high Volume
  223. Hickok 533 / 600 settings for 6GM8 / ECC86
  224. Need help: amp blowing fuses
  225. Best voltage reference device for a cascode BJT CCS?
  226. Tube power amp noise problem
  227. tube oscillator help.
  228. Finally have some big chokes, how would you use them?
  229. Tube amplifier
  230. Mesa Boogie bass amp quiet
  231. 12AX7 heater filament resistance
  232. Choke input LC chain questions..Q?, minload?
  233. LED bias for 12ax7 oscillator
  234. Yaqin VK-2100 hybrid running 4 ohm speakers
  235. VR shunt regulator or RC filter
  236. Screen Mode Mesh Plate?
  237. EL34 simple push pull class B : why 100W ?
  238. Scored Some Bendix 5992
  239. Tube Substitutions Online ???
  240. Resistor pack for tube amp
  241. Tube Phono Preamp PCB Ebay? are these any good
  242. Testing an EL84 as a 6V6
  243. Low Voltage (~16-20V) Tube
  244. Basic Oscilloscope question
  245. Cathodyne Questions
  246. 6922 for a Noob
  247. Cathodyne Phase splitter simulation problem?
  248. How would you improve this EL84 SE circuit?
  249. Power transformer HT/B+ voltages
  250. Help with cathode follower circuit

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