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  1. Low Profile Power Transformer Help
  2. Lowering Gain on an Aikido Preamp
  3. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  4. Tube vs. SS CCS...
  5. Another "I need an amp recommendation" thread
  6. i am a new one here
  7. i am new ! can you help me
  8. Pentode CCS: Would somebody check my work?
  9. PSU for 12V DC heaters
  10. 50C5 Triode strapped?
  11. homemade faceplates
  12. Can I build this?
  13. Heptode audio preamp? ECH83
  14. E130L in Triode mode
  15. class AB2 who's using it for hifi?
  16. Obscure radio tube
  17. another mingda
  18. tube hum in Aikido
  19. equivalent input impedance
  20. 6DG6GT "Magic Amp"
  21. Tektronix transformers
  22. *very* basic plate resistance Q
  23. Yaqin MC-5881A amplifier improvements
  24. Tube design software
  25. More wasted space
  26. PC Mount Novar Socket Suppliers
  27. Planning my first project
  28. Power Transformer leakage
  29. current sensing in series with anode resistors
  30. Please recommend a 9-pin dual triode = 417A
  31. Dynaco Pas 2
  32. Anyone have accurate charts for a KT90?
  33. Calling all Phono Preamp gurus, I'm looking for some plans
  34. Measuring Unknown Transformers
  35. Swinging choke vs std. choke in PS
  36. scope tests on a Heathkit A7E
  37. tube hum in a 6SN7 Aikido - is this weird?
  38. ECC807 preamp
  39. Ode to the 8416
  40. CCS 10M45 in Cathode of CF Driver
  41. Audionics help
  42. what 8-pin tubes would you suggest for an aikido preamp?
  43. KT88 tubes
  44. Any one tried these transformers?
  45. Williamson 6L6 Monoblocks (Finally)
  46. ~2 watt SET decision
  47. retube order
  48. MC Riaa preamp help/opinions please
  49. WTB Fairchild 260 transformers
  50. Peter Millet amp
  51. Power Regulator PCB's and Aikido parts
  52. A heater wiring DOH! moment??
  53. hum in fisher 800c phono section
  54. Aikido warm-up hum, resistor types, etc.
  55. Any of these tubes good for amps?
  56. Mini 98 El84 PP amplifier
  57. 1X6S33S=6X6S19P which one gives less impedance?
  58. schematic for 12.6 VDC heaters
  59. PP transformer for SE?? Help!
  60. 7-pin miniature tubes for audio?
  61. 6L6GT vs. EL34/6CA7 and WHY?
  62. Tube rectifier help
  63. KT88 Lifetime estimation
  64. Adjustable distributed load discussion
  65. Thyratron voltage regulation
  66. switch-on, switch-off sequence for preamp/amp
  67. Found Meixing Amp schematic, sorta, would like some feedback
  68. Tube Voltage Regulator Flicker...
  69. Projects...How does one decide ?
  70. Best 6550's for the money....
  71. SMPS and tubes
  72. Looking for Eico 1030 manual/schematic
  73. 6AS7 OTL
  74. Gary Pimm's site down?
  75. 805 + 300b Amplifier Schematic
  76. Music Angel Amplifiers
  77. MM Phono stage (kit?) for tube newbie
  78. Russian tube dealer?
  79. STA1 + amp vs K-12M
  80. cheap ebay KT88 amp
  81. Tubes at low +B...
  82. Converting a yarland amp to drive headphones
  83. Starting a component system
  84. Tube newbie with Scott 299B
  85. 12AV7- 5965 Vs 12AY7
  86. PX25 tubes in a 300B Amp?
  87. help with a choke.
  88. 60Hz buzzing
  89. nuvistor bias with 18V ?
  90. ground bus for inputs on preamp - what's best?
  91. Voltage drop of various regulators in dc regulated power supply for preamp
  92. Does anyone recognise this tube amp?
  93. Entry level tube amp
  94. Anyone build/use 6BG6G?
  95. KT-77 Blues
  96. Dynaco Information MArk II Required
  97. tube test numbers - what do they mean?
  98. foolish notion, 12GN7 model?
  99. First-Timer Doubts: K-12 or Gainclone?
  100. Eico ST70 Rebuild / Upgrade
  101. More power in this
  102. Help modifiying schematic
  103. Simple Variable Tube Power Supply
  104. bias voltage vs bias current
  105. All the Bias options
  106. 6N6G looks like a great audio tube. . .
  107. Variable bias
  108. Tube amp on a budget
  109. tung sol
  110. How cool is tube deep cooling?
  111. 12B4 Equivalents?
  112. KT88 pp triode control grid resistor????
  113. Duncan Amps spice model docs...
  114. Hum in Legend amp
  115. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  116. Mullard high speed tester
  117. Joining two NCT transformers
  118. Stereo Driver PCB for PP Amp (EL34/KT88)?
  119. Tube Integrated Amp Kit Project
  120. 866A transient over-current capability?
  121. 6HS8 tubes for volume control
  122. cathode for plate ccs ?
  123. Broken Tube pin guides
  124. I need a 120v ct transformer... Where to look?
  125. Best production EL34?
  126. 6DJ8 or 12AT7
  127. 6L6 Single Ended Flea Amp?
  128. Se Tranny used on Parafeed!!!
  129. Hammond 270 series power transformer?
  130. 6aq5.......6v6.......
  131. 6N1 substitution with 6922
  132. driving 845 push-pull with a signal from a 300B SE stage
  133. Recommend a schematic for a Moving Coil head amp?
  134. Tube Buffer 6J1 / 5654 (6AK5)
  135. question about 6Av5ga tubes
  136. Toroidal SE transformers
  137. Triode Trick
  138. SE 300B or PP KT88 amps?
  139. perhaps an INSANE query...
  140. Possible to estimate transformer specs?
  141. 9 pin replacement sockets
  142. Bench PSU
  143. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  144. Joke of the day
  145. $300 tube amp budget. Which Amp??
  146. Simple Linestage for 27 or 1H5?
  147. Foreplay III pre amp
  148. Fixing this 100TH
  149. I have some 5654
  150. Amplifer calculation
  151. Auto Bias?
  152. Se KT88 with Quad ESL
  153. Parts from Salvage
  154. power supply question.... too many Volts?
  155. Now wouldn’t this make an awesome monoblock.
  156. Please,help me for schematics!!
  157. Kofi Annan in: "Open for Suggestion"
  158. What connector for 300vDC DOMESTIC environment?
  159. looking for help in transformers.
  160. problems with 805 tubes
  161. Audio Research D-90
  162. Replacing a 12AU7 in a cathode-follower.
  163. Original Dynaco 70 circuit mods/upgrades?
  164. is there a power supply unit for prototyping?
  165. Power Supply Design and Blocking
  166. OTL questions
  167. PP- which input/splitter topology??
  168. Cathode feedback and DHTs
  169. How should Dick Olsher Blue Velvet measure??
  170. Info on Melos MA-111?
  171. Aikido with dual personality
  172. Making a hole for AC socket in a chassis
  173. Liteaudio LS31 preamp pcb
  174. Thoughts on Quad II output topology
  175. HF-85 Rebuild advice
  176. Cheap Williamson amp kit
  177. Mr. Liang audio amplifiers
  178. plate ccs
  179. DC Huuuummmmmm
  180. Hey Gingertube - trying to debug Baby Huey
  181. question about nOrh SE 9 amp for FE207E
  182. Arc D150
  183. help identify this "cleartop 6550"
  184. Cheap emergency gold sockets
  185. Is Western Electric for Real? KT88 Scam?
  186. Russian 635P?
  187. Swinging Choke or Smoothing Choke
  188. Amp de-bugging
  189. SMPS for B+ from PC PS
  190. Placement of tone stacks
  191. Rectify AC to DC for heating
  192. KT88 in class B
  193. 6FE5 Ultralinear?
  194. OPT -the good, the bad or the ugly ??
  195. Switching power supply for tube-pre
  196. Using a zener to drop plate+screen voltages
  197. Will this circuit work?
  198. Ei 6CW5, any users?
  199. Simple tube preamp?
  200. push-pull and primary impedance
  201. DIY : SWR Interstellar OverDrive (bass preamp)
  202. sound valves m-40 schematics
  203. series connection of filament in push pull output stage
  204. Has anybody built this amp?
  205. Red Light District Amp Screen Reg
  206. AEG rectifier
  207. Gm emulator for calibration
  208. Greetings and a couple of questions
  209. Tubes in a chip amp power stage??
  210. Yaqin MC-10L Preamp Tubes
  211. Sound of paralleld EL84
  212. Preamp Question
  213. WTH -- UL back to triode connection
  214. $139 tube amp but cant remember where i saw it...
  215. better 6au6 alternative
  216. type 40 triode curves
  217. Cap size for Hg Rectifiers
  218. Anybody have experience building an OTL amp?
  219. measuring hum
  220. Nytone SA2000
  221. Inter stage iron in High End
  222. very peculiar psu problem
  223. 12A6 Healthkit A7 Amp
  224. testing a 13E1
  225. JE Labs / Arnold Cruz 2A3 amp - Q
  226. 5842 grounded grid
  227. Russian RF Double Tetrodes
  228. Opinions or inputs on Altec 1570B amplifiers
  229. Chinese EL34 amp to modify
  230. GE 97F cap polarity ???
  231. 6C8G phase inverter
  232. Shall I disassemble this ampex for parts?
  233. Power Amp Build from Eico ST70 - Negative Feedback Question
  234. ECC83 cathode grounded = awesome overdrive (?!?!?)
  235. Looking for a Balanced Mic Preamp w 12AX7
  236. Does anyone has a T.A.C.-34 or a T.A.C.-88 schematic?
  237. Conrad Johnson PV10L Phono stage DIY
  238. NEW KT66's
  239. Edcor outputs?
  240. Schematic Comment on 'Principles of Power" book ??
  241. stereo push pull amp one heater supply for power tubes
  242. Building new GU-50 stereo amp...
  243. Tubes and microphonics
  244. 829 or GU-29 audio amplifier schematics?
  245. Consonance t99 schematic/ minimax pre
  246. Useful Supplier of Transformers, Chokes, Chassis and other stuff
  247. Serious case of brain fry. You out there Thorsten?
  248. Upgrading a Beard P100 tubeamp
  249. Tube Amplifier with OT100
  250. bogen m120 schematic

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