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  1. Looking for Eico 1030 manual/schematic
  2. 6AS7 OTL
  3. Gary Pimm's site down?
  4. 805 + 300b Amplifier Schematic
  5. Music Angel Amplifiers
  6. MM Phono stage (kit?) for tube newbie
  7. Russian tube dealer?
  8. STA1 + amp vs K-12M
  9. cheap ebay KT88 amp
  10. Tubes at low +B...
  11. Converting a yarland amp to drive headphones
  12. Starting a component system
  13. Really elementary question about caps.
  14. Tube newbie with Scott 299B
  15. 12AV7- 5965 Vs 12AY7
  16. PX25 tubes in a 300B Amp?
  17. help with a choke.
  18. 60Hz buzzing
  19. nuvistor bias with 18V ?
  20. ground bus for inputs on preamp - what's best?
  21. Voltage drop of various regulators in dc regulated power supply for preamp
  22. Does anyone recognise this tube amp?
  23. Entry level tube amp
  24. Anyone build/use 6BG6G?
  25. KT-77 Blues
  26. Dynaco Information MArk II Required
  27. tube test numbers - what do they mean?
  28. foolish notion, 12GN7 model?
  29. First-Timer Doubts: K-12 or Gainclone?
  30. Eico ST70 Rebuild / Upgrade
  31. More power in this
  32. Help modifiying schematic
  33. Simple Variable Tube Power Supply
  34. bias voltage vs bias current
  35. All the Bias options
  36. 6N6G looks like a great audio tube. . .
  37. Variable bias
  38. Tube amp on a budget
  39. tung sol
  40. How cool is tube deep cooling?
  41. Modified Fender Deluxe - Constant Current Phase Splitter
  42. 12B4 Equivalents?
  43. KT88 pp triode control grid resistor????
  44. Duncan Amps spice model docs...
  45. Hum in Legend amp
  46. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  47. Mullard high speed tester
  48. Joining two NCT transformers
  49. Stereo Driver PCB for PP Amp (EL34/KT88)?
  50. Tube Integrated Amp Kit Project
  51. 866A transient over-current capability?
  52. 6HS8 tubes for volume control
  53. cathode for plate ccs ?
  54. Broken Tube pin guides
  55. I need a 120v ct transformer... Where to look?
  56. Best production EL34?
  57. 6DJ8 or 12AT7
  58. 6L6 Single Ended Flea Amp?
  59. Se Tranny used on Parafeed!!!
  60. Hammond 270 series power transformer?
  61. 6aq5.......6v6.......
  62. 6N1 substitution with 6922
  63. driving 845 push-pull with a signal from a 300B SE stage
  64. Recommend a schematic for a Moving Coil head amp?
  65. Tube Buffer 6J1 / 5654 (6AK5)
  66. question about 6Av5ga tubes
  67. Toroidal SE transformers
  68. Calling MR. Tubelab! 6W6GT?
  69. Triode Trick
  70. SE 300B or PP KT88 amps?
  71. perhaps an INSANE query...
  72. Possible to estimate transformer specs?
  73. 9 pin replacement sockets
  74. Bench PSU
  75. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  76. Joke of the day
  77. $300 tube amp budget. Which Amp??
  78. Simple Linestage for 27 or 1H5?
  79. Foreplay III pre amp
  80. Fixing this 100TH
  81. I have some 5654
  82. Multisegment capacitor replacement help.
  83. Amplifer calculation
  84. Auto Bias?
  85. Se KT88 with Quad ESL
  86. Parts from Salvage
  87. power supply question.... too many Volts?
  88. Heathkit A7E Conversion to Guitar
  89. Now wouldn’t this make an awesome monoblock.
  90. Please,help me for schematics!!
  91. Kofi Annan in: "Open for Suggestion"
  92. What connector for 300vDC DOMESTIC environment?
  93. looking for help in transformers.
  94. problems with 805 tubes
  95. Audio Research D-90
  96. Replacing a 12AU7 in a cathode-follower.
  97. Original Dynaco 70 circuit mods/upgrades?
  98. is there a power supply unit for prototyping?
  99. Power Supply Design and Blocking
  100. OTL questions
  101. PP- which input/splitter topology??
  102. Cathode feedback and DHTs
  103. How should Dick Olsher Blue Velvet measure??
  104. Info on Melos MA-111?
  105. Aikido with dual personality
  106. Making a hole for AC socket in a chassis
  107. Liteaudio LS31 preamp pcb
  108. Thoughts on Quad II output topology
  109. HF-85 Rebuild advice
  110. Cheap Williamson amp kit
  111. Mr'Liang audio amplifiers
  112. plate ccs
  113. DC Huuuummmmmm
  114. Hey Gingertube - trying to debug Baby Huey
  115. question about nOrh SE 9 amp for FE207E
  116. 6N1P or EF86 for bass guitar preamp?
  117. Arc D150
  118. help identify this "cleartop 6550"
  119. Cheap emergency gold sockets
  120. Is Western Electric for Real? KT88 Scam?
  121. Russian 635P?
  122. Swinging Choke or Smoothing Choke
  123. Amp de-bugging
  124. SMPS for B+ from PC PS
  125. Placement of tone stacks
  126. Rectify AC to DC for heating
  127. KT88 in class B
  128. 6FE5 Ultralinear?
  129. OPT -the good, the bad or the ugly ??
  130. Switching power supply for tube-pre
  131. Using a zener to drop plate+screen voltages
  132. Will this circuit work?
  133. Ei 6CW5, any users?
  134. Simple tube preamp?
  135. push-pull and primary impedance
  136. DIY : SWR Interstellar OverDrive (bass preamp)
  137. sound valves m-40 schematics
  138. series connection of filament in push pull output stage
  139. Has anybody built this amp?
  140. Red Light District Amp Screen Reg
  141. AEG rectifier
  142. Gm emulator for calibration
  143. Greetings and a couple of questions
  144. Tubes in a chip amp power stage??
  145. Yaqin MC-10L Preamp Tubes
  146. Sound of paralleld EL84
  147. Preamp Question
  148. WTH -- UL back to triode connection
  149. $139 tube amp but cant remember where i saw it...
  150. better 6au6 alternative
  151. type 40 triode curves
  152. Cap size for Hg Rectifiers
  153. Anybody have experience building an OTL amp?
  154. measuring hum
  155. Nytone SA2000
  156. Inter stage iron in High End
  157. very peculiar psu problem
  158. 12A6 Healthkit A7 Amp
  159. testing a 13E1
  160. JE Labs / Arnold Cruz 2A3 amp - Q
  161. 5842 grounded grid
  162. Russian RF Double Tetrodes
  163. Opinions or inputs on Altec 1570B amplifiers
  164. Chinese EL34 amp to modify
  165. GE 97F cap polarity ???
  166. 6C8G phase inverter
  167. Shall I disassemble this ampex for parts?
  168. Power Amp Build from Eico ST70 - Negative Feedback Question
  169. ECC83 cathode grounded = awesome overdrive (?!?!?)
  170. Looking for a Balanced Mic Preamp w 12AX7
  171. Does anyone has a T.A.C.-34 or a T.A.C.-88 schematic?
  172. Conrad Johnson PV10L Phono stage DIY
  173. NEW KT66's
  174. Edcor outputs?
  175. Schematic Comment on 'Principles of Power" book ??
  176. what kind of resistor is this?
  177. stereo push pull amp one heater supply for power tubes
  178. Building new GU-50 stereo amp...
  179. Tubes and microphonics
  180. 829 or GU-29 audio amplifier schematics?
  181. Electrolytic types...
  182. Consonance t99 schematic/ minimax pre
  183. Useful Supplier of Transformers, Chokes, Chassis and other stuff
  184. Serious case of brain fry. You out there Thorsten?
  185. Upgrading a Beard P100 tubeamp
  186. Tube Amplifier with OT100
  187. bogen m120 schematic
  188. Question about Thorsten's Tube Phono Pre
  189. PP Output Trafo Measurement
  190. push pull balancing
  191. New issue Mullard Tubes
  192. Help on triode
  193. 5 Volt Damper Diodes?
  194. Please help diagnose preamp problem
  195. 6N1/6N3 substitution
  196. Cathode feedback and input impedance
  197. Optimal ripple voltage on b+ supply
  198. Setup suggestion between DAC-AH and ST-70
  199. Simple Low Voltage Tube Preamp?
  200. Anyone built this 100W GEC amp? How is the sound?
  201. Does anyone have VT150 schematic?
  202. Ignition Coil Toobe Amplifier
  203. Voltage swing of Heffa?
  204. All pentode PP amp?
  205. GZ34 anode load resistor calculation - help?
  206. Capacitor choice for attached schematic
  207. The sound of... tubes !
  208. All quiet on the SN front - recommended choice of tubes
  209. Moscode 600 hum/turn off thump
  210. Tube Tester Resto Basics
  211. Marshall 100v 8100U Guitar Amp Hums
  212. What's the simple killer tube amp? Anyone?
  213. Help - CFB in a KT88 SE amp
  214. Any Russian speakers here?
  215. 6av6 Diode use?
  216. Power Supply
  217. Choke rating for choke input duty
  218. drawing a loadline for a power stage EL34 tube.
  219. Experiencing problems to insert tubes
  220. Preamp signal wiring ideas ?
  221. el34PP circuit evaluation!!
  222. "Re-Forming" Caps on Old Tube Amp
  223. Gary Pimm website?
  224. Haltron (UK), Trigon (UK) and Ultron (germany) ECC83 tubes info request.
  225. Audio Research D150 bias setting
  226. Cathodyne phase splitter with CCS?
  227. Has anyone tried 2 x 6550 100W amp?
  228. modelling PSU for Aikido
  229. 27 head phone amp or.??
  230. New Chassis Fabrication Pics and Capacitor Question
  231. Replacing old caps in the SP8 pre-amp
  232. Tube choice for Class A2
  233. hybrid graetz in PSUDII
  234. 6C45P Spud
  235. Philips ECG 12AX7WA or GE 5751 ?? Opinions, please.
  236. Single Ended EL34 Amp
  237. Rp / Rk on Aikido preamp
  238. hum in amp!
  239. Looking for a 83 rectifier model
  240. Advice wanted on ebay SET amps
  241. Resistors for ultralinear-to-triode conversion
  242. Gary Pimm
  243. resistor values for lifting ground AND LED
  244. output transformer impedance choices
  245. Feedback disc recording amp
  246. 6bm8/ECL82 vs EL84
  247. B+ filter caps
  248. (Newbie) CSS Question
  249. 6P15P Tubes: Push Pull Possible?
  250. Tube X-ref list ??

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