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  1. I need a 120v ct transformer... Where to look?
  2. Best production EL34?
  3. 6DJ8 or 12AT7
  4. 6L6 Single Ended Flea Amp?
  5. Se Tranny used on Parafeed!!!
  6. Hammond 270 series power transformer?
  7. 6aq5.......6v6.......
  8. 6N1 substitution with 6922
  9. driving 845 push-pull with a signal from a 300B SE stage
  10. Recommend a schematic for a Moving Coil head amp?
  11. Tube Buffer 6J1 / 5654 (6AK5)
  12. question about 6Av5ga tubes
  13. Toroidal SE transformers
  14. Calling MR. Tubelab! 6W6GT?
  15. Triode Trick
  16. SE 300B or PP KT88 amps?
  17. perhaps an INSANE query...
  18. Possible to estimate transformer specs?
  19. 9 pin replacement sockets
  20. Bench PSU
  21. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  22. Joke of the day
  23. $300 tube amp budget. Which Amp??
  24. Simple Linestage for 27 or 1H5?
  25. Foreplay III pre amp
  26. Fixing this 100TH
  27. I have some 5654
  28. Multisegment capacitor replacement help.
  29. Amplifer calculation
  30. Auto Bias?
  31. Se KT88 with Quad ESL
  32. Parts from Salvage
  33. power supply question.... too many Volts?
  34. Heathkit A7E Conversion to Guitar
  35. Now wouldn’t this make an awesome monoblock.
  36. Please,help me for schematics!!
  37. Kofi Annan in: "Open for Suggestion"
  38. What connector for 300vDC DOMESTIC environment?
  39. looking for help in transformers.
  40. problems with 805 tubes
  41. Audio Research D-90
  42. Replacing a 12AU7 in a cathode-follower.
  43. Original Dynaco 70 circuit mods/upgrades?
  44. is there a power supply unit for prototyping?
  45. Power Supply Design and Blocking
  46. OTL questions
  47. PP- which input/splitter topology??
  48. Cathode feedback and DHTs
  49. How should Dick Olsher Blue Velvet measure??
  50. Info on Melos MA-111?
  51. Aikido with dual personality
  52. Making a hole for AC socket in a chassis
  53. Liteaudio LS31 preamp pcb
  54. Thoughts on Quad II output topology
  55. HF-85 Rebuild advice
  56. Cheap Williamson amp kit
  57. Mr. Liang audio amplifiers
  58. plate ccs
  59. DC Huuuummmmmm
  60. Hey Gingertube - trying to debug Baby Huey
  61. question about nOrh SE 9 amp for FE207E
  62. 6N1P or EF86 for bass guitar preamp?
  63. Arc D150
  64. help identify this "cleartop 6550"
  65. Cheap emergency gold sockets
  66. Is Western Electric for Real? KT88 Scam?
  67. Russian 635P?
  68. Swinging Choke or Smoothing Choke
  69. Amp de-bugging
  70. SMPS for B+ from PC PS
  71. Placement of tone stacks
  72. Rectify AC to DC for heating
  73. KT88 in class B
  74. 6FE5 Ultralinear?
  75. OPT -the good, the bad or the ugly ??
  76. Switching power supply for tube-pre
  77. Using a zener to drop plate+screen voltages
  78. Will this circuit work?
  79. Ei 6CW5, any users?
  80. Simple tube preamp?
  81. push-pull and primary impedance
  82. DIY : SWR Interstellar OverDrive (bass preamp)
  83. sound valves m-40 schematics
  84. series connection of filament in push pull output stage
  85. Has anybody built this amp?
  86. Red Light District Amp Screen Reg
  87. AEG rectifier
  88. Gm emulator for calibration
  89. Greetings and a couple of questions
  90. Tubes in a chip amp power stage??
  91. Yaqin MC-10L Preamp Tubes
  92. Sound of paralleld EL84
  93. Preamp Question
  94. WTH -- UL back to triode connection
  95. $139 tube amp but cant remember where i saw it...
  96. better 6au6 alternative
  97. type 40 triode curves
  98. Cap size for Hg Rectifiers
  99. Anybody have experience building an OTL amp?
  100. measuring hum
  101. Nytone SA2000
  102. Inter stage iron in High End
  103. very peculiar psu problem
  104. 12A6 Healthkit A7 Amp
  105. testing a 13E1
  106. JE Labs / Arnold Cruz 2A3 amp - Q
  107. 5842 grounded grid
  108. Russian RF Double Tetrodes
  109. Opinions or inputs on Altec 1570B amplifiers
  110. Chinese EL34 amp to modify
  111. GE 97F cap polarity ???
  112. 6C8G phase inverter
  113. Shall I disassemble this ampex for parts?
  114. Power Amp Build from Eico ST70 - Negative Feedback Question
  115. ECC83 cathode grounded = awesome overdrive (?!?!?)
  116. Looking for a Balanced Mic Preamp w 12AX7
  117. Does anyone has a T.A.C.-34 or a T.A.C.-88 schematic?
  118. Conrad Johnson PV10L Phono stage DIY
  119. NEW KT66's
  120. Edcor outputs?
  121. Schematic Comment on 'Principles of Power" book ??
  122. what kind of resistor is this?
  123. stereo push pull amp one heater supply for power tubes
  124. Building new GU-50 stereo amp...
  125. Tubes and microphonics
  126. 829 or GU-29 audio amplifier schematics?
  127. Electrolytic types...
  128. Consonance t99 schematic/ minimax pre
  129. Useful Supplier of Transformers, Chokes, Chassis and other stuff
  130. Serious case of brain fry. You out there Thorsten?
  131. Upgrading a Beard P100 tubeamp
  132. Tube Amplifier with OT100
  133. bogen m120 schematic
  134. Question about Thorsten's Tube Phono Pre
  135. PP Output Trafo Measurement
  136. push pull balancing
  137. New issue Mullard Tubes
  138. Help on triode
  139. 5 Volt Damper Diodes?
  140. Please help diagnose preamp problem
  141. 6N1/6N3 substitution
  142. Cathode feedback and input impedance
  143. Optimal ripple voltage on b+ supply
  144. Setup suggestion between DAC-AH and ST-70
  145. Simple Low Voltage Tube Preamp?
  146. Anyone built this 100W GEC amp? How is the sound?
  147. Does anyone have VT150 schematic?
  148. Ignition Coil Toobe Amplifier
  149. Voltage swing of Heffa?
  150. All pentode PP amp?
  151. GZ34 anode load resistor calculation - help?
  152. Capacitor choice for attached schematic
  153. The sound of... tubes !
  154. All quiet on the SN front - recommended choice of tubes
  155. Moscode 600 hum/turn off thump
  156. Tube Tester Resto Basics
  157. Marshall 100v 8100U Guitar Amp Hums
  158. What's the simple killer tube amp? Anyone?
  159. Help - CFB in a KT88 SE amp
  160. Any Russian speakers here?
  161. 6av6 Diode use?
  162. Power Supply
  163. Choke rating for choke input duty
  164. drawing a loadline for a power stage EL34 tube.
  165. Experiencing problems to insert tubes
  166. Preamp signal wiring ideas ?
  167. el34PP circuit evaluation!!
  168. "Re-Forming" Caps on Old Tube Amp
  169. Gary Pimm website?
  170. Haltron (UK), Trigon (UK) and Ultron (germany) ECC83 tubes info request.
  171. Audio Research D150 bias setting
  172. Cathodyne phase splitter with CCS?
  173. Has anyone tried 2 x 6550 100W amp?
  174. modelling PSU for Aikido
  175. 27 head phone amp or.??
  176. New Chassis Fabrication Pics and Capacitor Question
  177. Replacing old caps in the SP8 pre-amp
  178. Tube choice for Class A2
  179. hybrid graetz in PSUDII
  180. 6C45P Spud
  181. Philips ECG 12AX7WA or GE 5751 ?? Opinions, please.
  182. Single Ended EL34 Amp
  183. Rp / Rk on Aikido preamp
  184. hum in amp!
  185. Looking for a 83 rectifier model
  186. Advice wanted on ebay SET amps
  187. Resistors for ultralinear-to-triode conversion
  188. Gary Pimm
  189. resistor values for lifting ground AND LED
  190. output transformer impedance choices
  191. Feedback disc recording amp
  192. 6bm8/ECL82 vs EL84
  193. B+ filter caps
  194. (Newbie) CSS Question
  195. 6P15P Tubes: Push Pull Possible?
  196. Tube X-ref list ??
  197. AVO tube tester spares
  198. Add gain before or after the phase splitter?
  199. ping SY: Red Light LED question
  200. Greinacher voltage multiplier
  201. Dead channel
  202. Euphonia is back!
  203. What's the best 417A & 437A?
  204. Eico ST70 OPT / Schematic Question
  205. Is this feasible?
  206. Repairing 805 tubes
  207. jadis defy 7 help
  208. 6n1p Screen
  209. Mc275ce
  210. Are these tubes are the same?
  211. "King of tube(s) for line-stages"
  212. Acoustic Plan PhonoMaster
  213. Heathkit AA-81 schematic
  214. has anyone kept a copy of gpimm's latest self-biasing CCS?
  215. How to wire inductor - s and n
  216. Rogers Cadet III schematics Corrections
  217. Hickok TV-7/U restoration advice needed.
  218. Rogers Cadet III to SY's Red Light District or Gingertubes's Baby Huey
  219. 24v Aikido for newb.
  220. Powering Up Old Tube Amps/Receivers
  221. preliminary schematic drawing rev.1a
  222. Not a typical MKIII Dynaco.
  223. mosfet buffer for power stage
  224. EI KT-90 news
  225. 304TL based Class A
  226. Purchasing NOS Tubes
  227. tube power supply design resources
  228. High Voltage Regulator Design
  229. max. output for two 5881 tubes?
  230. Excessive current draw in Fender Deville
  231. driving your power stage
  232. Need schematic Cary Audio SLP-70 preamp
  233. Bridge-balanced amplifiers
  234. Tell-tale signs of good feedback usage?
  235. Any mid priced SE transformers around?
  236. Bias resistor
  237. Some sneek peeks
  238. Old radio with 4 pin sockets, info?
  239. need help on pot tapers
  240. A typical KT88 tubes
  241. amplifier for unknown output transformers?
  242. vista audio
  243. CV4014 and 5650 - any audio application of these tubes?
  244. SVP-PRO schematic
  245. Looking for a good source for attenuators
  246. Center-tap to ground?
  247. 6n1p-ev operating points
  248. where to find old pot's with switch built in
  249. Maggie refurb project
  250. Parafeed output

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