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  1. Tube amp on a budget
  2. tung sol
  3. How cool is tube deep cooling?
  4. Modified Fender Deluxe - Constant Current Phase Splitter
  5. 12B4 Equivalents?
  6. KT88 pp triode control grid resistor????
  7. Duncan Amps spice model docs...
  8. Hum in Legend amp
  9. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  10. Mullard high speed tester
  11. Joining two NCT transformers
  12. Stereo Driver PCB for PP Amp (EL34/KT88)?
  13. Tube Integrated Amp Kit Project
  14. 866A transient over-current capability?
  15. 6HS8 tubes for volume control
  16. cathode for plate ccs ?
  17. Broken Tube pin guides
  18. I need a 120v ct transformer... Where to look?
  19. Best production EL34?
  20. 6DJ8 or 12AT7
  21. 6L6 Single Ended Flea Amp?
  22. Se Tranny used on Parafeed!!!
  23. Hammond 270 series power transformer?
  24. 6aq5.......6v6.......
  25. 6N1 substitution with 6922
  26. driving 845 push-pull with a signal from a 300B SE stage
  27. Recommend a schematic for a Moving Coil head amp?
  28. Tube Buffer 6J1 / 5654 (6AK5)
  29. question about 6Av5ga tubes
  30. Toroidal SE transformers
  31. Calling MR. Tubelab! 6W6GT?
  32. Triode Trick
  33. SE 300B or PP KT88 amps?
  34. perhaps an INSANE query...
  35. Possible to estimate transformer specs?
  36. 9 pin replacement sockets
  37. Bench PSU
  38. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  39. Joke of the day
  40. $300 tube amp budget. Which Amp??
  41. Simple Linestage for 27 or 1H5?
  42. Foreplay III pre amp
  43. Fixing this 100TH
  44. I have some 5654
  45. Multisegment capacitor replacement help.
  46. Amplifer calculation
  47. Auto Bias?
  48. Se KT88 with Quad ESL
  49. Parts from Salvage
  50. power supply question.... too many Volts?
  51. Heathkit A7E Conversion to Guitar
  52. Now wouldn’t this make an awesome monoblock.
  53. Please,help me for schematics!!
  54. Kofi Annan in: "Open for Suggestion"
  55. What connector for 300vDC DOMESTIC environment?
  56. looking for help in transformers.
  57. problems with 805 tubes
  58. Audio Research D-90
  59. Replacing a 12AU7 in a cathode-follower.
  60. Original Dynaco 70 circuit mods/upgrades?
  61. is there a power supply unit for prototyping?
  62. Power Supply Design and Blocking
  63. OTL questions
  64. PP- which input/splitter topology??
  65. Cathode feedback and DHTs
  66. How should Dick Olsher Blue Velvet measure??
  67. Info on Melos MA-111?
  68. Aikido with dual personality
  69. Making a hole for AC socket in a chassis
  70. Liteaudio LS31 preamp pcb
  71. Thoughts on Quad II output topology
  72. HF-85 Rebuild advice
  73. Cheap Williamson amp kit
  74. Mr'Liang audio amplifiers
  75. plate ccs
  76. DC Huuuummmmmm
  77. Hey Gingertube - trying to debug Baby Huey
  78. question about nOrh SE 9 amp for FE207E
  79. 6N1P or EF86 for bass guitar preamp?
  80. Arc D150
  81. help identify this "cleartop 6550"
  82. Cheap emergency gold sockets
  83. Is Western Electric for Real? KT88 Scam?
  84. Russian 635P?
  85. Swinging Choke or Smoothing Choke
  86. Amp de-bugging
  87. SMPS for B+ from PC PS
  88. Placement of tone stacks
  89. Rectify AC to DC for heating
  90. KT88 in class B
  91. 6FE5 Ultralinear?
  92. OPT -the good, the bad or the ugly ??
  93. Switching power supply for tube-pre
  94. Using a zener to drop plate+screen voltages
  95. Will this circuit work?
  96. Ei 6CW5, any users?
  97. Simple tube preamp?
  98. push-pull and primary impedance
  99. DIY : SWR Interstellar OverDrive (bass preamp)
  100. sound valves m-40 schematics
  101. series connection of filament in push pull output stage
  102. Has anybody built this amp?
  103. Red Light District Amp Screen Reg
  104. AEG rectifier
  105. Gm emulator for calibration
  106. Greetings and a couple of questions
  107. Tubes in a chip amp power stage??
  108. Yaqin MC-10L Preamp Tubes
  109. Sound of paralleld EL84
  110. Preamp Question
  111. WTH -- UL back to triode connection
  112. $139 tube amp but cant remember where i saw it...
  113. better 6au6 alternative
  114. type 40 triode curves
  115. Cap size for Hg Rectifiers
  116. Anybody have experience building an OTL amp?
  117. measuring hum
  118. Nytone SA2000
  119. Inter stage iron in High End
  120. very peculiar psu problem
  121. 12A6 Healthkit A7 Amp
  122. testing a 13E1
  123. JE Labs / Arnold Cruz 2A3 amp - Q
  124. 5842 grounded grid
  125. Russian RF Double Tetrodes
  126. Opinions or inputs on Altec 1570B amplifiers
  127. Chinese EL34 amp to modify
  128. GE 97F cap polarity ???
  129. 6C8G phase inverter
  130. Shall I disassemble this ampex for parts?
  131. Power Amp Build from Eico ST70 - Negative Feedback Question
  132. ECC83 cathode grounded = awesome overdrive (?!?!?)
  133. Looking for a Balanced Mic Preamp w 12AX7
  134. Does anyone has a T.A.C.-34 or a T.A.C.-88 schematic?
  135. Conrad Johnson PV10L Phono stage DIY
  136. NEW KT66's
  137. Edcor outputs?
  138. Schematic Comment on 'Principles of Power" book ??
  139. what kind of resistor is this?
  140. stereo push pull amp one heater supply for power tubes
  141. Building new GU-50 stereo amp...
  142. Tubes and microphonics
  143. 829 or GU-29 audio amplifier schematics?
  144. Electrolytic types...
  145. Consonance t99 schematic/ minimax pre
  146. Useful Supplier of Transformers, Chokes, Chassis and other stuff
  147. Serious case of brain fry. You out there Thorsten?
  148. Upgrading a Beard P100 tubeamp
  149. Tube Amplifier with OT100
  150. bogen m120 schematic
  151. Question about Thorsten's Tube Phono Pre
  152. PP Output Trafo Measurement
  153. push pull balancing
  154. New issue Mullard Tubes
  155. Help on triode
  156. 5 Volt Damper Diodes?
  157. Please help diagnose preamp problem
  158. 6N1/6N3 substitution
  159. Cathode feedback and input impedance
  160. Optimal ripple voltage on b+ supply
  161. Setup suggestion between DAC-AH and ST-70
  162. Simple Low Voltage Tube Preamp?
  163. Anyone built this 100W GEC amp? How is the sound?
  164. Does anyone have VT150 schematic?
  165. Ignition Coil Toobe Amplifier
  166. Voltage swing of Heffa?
  167. All pentode PP amp?
  168. GZ34 anode load resistor calculation - help?
  169. Capacitor choice for attached schematic
  170. The sound of... tubes !
  171. All quiet on the SN front - recommended choice of tubes
  172. Moscode 600 hum/turn off thump
  173. Tube Tester Resto Basics
  174. Marshall 100v 8100U Guitar Amp Hums
  175. What's the simple killer tube amp? Anyone?
  176. Help - CFB in a KT88 SE amp
  177. Any Russian speakers here?
  178. 6av6 Diode use?
  179. Power Supply
  180. Choke rating for choke input duty
  181. drawing a loadline for a power stage EL34 tube.
  182. Experiencing problems to insert tubes
  183. Preamp signal wiring ideas ?
  184. el34PP circuit evaluation!!
  185. "Re-Forming" Caps on Old Tube Amp
  186. Gary Pimm website?
  187. Haltron (UK), Trigon (UK) and Ultron (germany) ECC83 tubes info request.
  188. Audio Research D150 bias setting
  189. Cathodyne phase splitter with CCS?
  190. Has anyone tried 2 x 6550 100W amp?
  191. modelling PSU for Aikido
  192. 27 head phone amp or.??
  193. New Chassis Fabrication Pics and Capacitor Question
  194. Replacing old caps in the SP8 pre-amp
  195. Tube choice for Class A2
  196. hybrid graetz in PSUDII
  197. 6C45P Spud
  198. Philips ECG 12AX7WA or GE 5751 ?? Opinions, please.
  199. Single Ended EL34 Amp
  200. Rp / Rk on Aikido preamp
  201. hum in amp!
  202. Looking for a 83 rectifier model
  203. Advice wanted on ebay SET amps
  204. Resistors for ultralinear-to-triode conversion
  205. Gary Pimm
  206. resistor values for lifting ground AND LED
  207. output transformer impedance choices
  208. Feedback disc recording amp
  209. 6bm8/ECL82 vs EL84
  210. B+ filter caps
  211. (Newbie) CSS Question
  212. 6P15P Tubes: Push Pull Possible?
  213. Tube X-ref list ??
  214. AVO tube tester spares
  215. Add gain before or after the phase splitter?
  216. ping SY: Red Light LED question
  217. Greinacher voltage multiplier
  218. Dead channel
  219. Euphonia is back!
  220. What's the best 417A & 437A?
  221. Eico ST70 OPT / Schematic Question
  222. Is this feasible?
  223. Repairing 805 tubes
  224. jadis defy 7 help
  225. 6n1p Screen
  226. Mc275ce
  227. Are these tubes are the same?
  228. "King of tube(s) for line-stages"
  229. Acoustic Plan PhonoMaster
  230. Heathkit AA-81 schematic
  231. has anyone kept a copy of gpimm's latest self-biasing CCS?
  232. How to wire inductor - s and n
  233. Rogers Cadet III schematics Corrections
  234. Hickok TV-7/U restoration advice needed.
  235. Rogers Cadet III to SY's Red Light District or Gingertubes's Baby Huey
  236. 24v Aikido for newb.
  237. Powering Up Old Tube Amps/Receivers
  238. preliminary schematic drawing rev.1a
  239. Not a typical MKIII Dynaco.
  240. mosfet buffer for power stage
  241. EI KT-90 news
  242. 304TL based Class A
  243. Purchasing NOS Tubes
  244. tube power supply design resources
  245. High Voltage Regulator Design
  246. max. output for two 5881 tubes?
  247. Excessive current draw in Fender Deville
  248. driving your power stage
  249. Need schematic Cary Audio SLP-70 preamp
  250. Bridge-balanced amplifiers

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