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  1. Gabevee's Maggie (MAG1515)
  2. Can partial feedback be as effective as global fb for decent damping factor?
  3. Which trans wire is which?
  4. What's wrong with this tube?
  5. F: great sound control with ECC82
  6. 30W UL 6L6P-P amp
  7. 300B stereo SE amp and PP2A3 monoblocks
  8. 6S45P matching
  9. Inductors made for crossover in an amp?
  10. PX4 or AVO44 or AV044 based SETA
  11. power conditioning
  12. Microphone preamp with compressor
  13. Current production rectifiers
  14. mu stage help...
  15. Non-Polar caps to cathode bypass
  16. 5u4 / solid state switchable supply
  17. 12AX7 sound ... going with the trend
  18. 6L6 PP Design Recommendations?
  19. EL 34 30W ultra linear
  20. Convert Audion Silver Knight PP monos
  21. Too much gain
  22. The long lost linear gain stage
  23. Philco power tranny diagram/5u4 supply
  24. Kt88 Se
  25. supersize me, please. (powersupply)
  26. Seeking advice on "Circlotron" cross-coupled feedback OTL design
  27. Best 6CA7?
  28. ECC99 line preamp
  29. coupling caps???
  30. variable regulated negitive grid supply
  31. hum loop advice
  32. Against all odds...
  33. 6as7 se amp
  34. Help .. tube amplifier .. 1st !
  35. winding a toroidal pp output
  36. solid state Vs Tube Rectification
  37. Cryoed Tubes...what To Expect?
  38. I'm looking for 6H13C tubes
  39. Which ST-70 ?
  40. Some questions about Van Scoyoc X-coupled splitter
  41. Quicksilver 8417 bias runaway?
  42. Most effective use of valve pre & active xover
  43. Tube possibilities for 2.9k-ohm speaker?
  44. Help on Preamp Mute Switch
  45. Fixed bias supply problems...
  46. Help with VTL preamp...
  47. question about 811A and 572B
  48. Dual Stereo Cathode Folower Setup
  49. tube tester
  50. Audio Innovation 1000 SE
  51. 6as7 PP Schematic Help
  52. Newbie Question: Need help diagnosing a problem, tubes on, music fades out quickly
  53. 7591EH failure
  54. opt frequency response
  55. Anyone got any opinions on this?
  56. My ForePlay Processor Controlled Preamp
  57. Tube ghetto blaster ?
  58. Help trouble shooting
  59. "The Fisher" tube amp 7189 output tubes
  60. UTC output transformers specs
  61. Regulation options for 807 g2
  62. My Mullard 5/20
  63. Anyone tried Black Beauty caps??
  64. KT88 power amp
  65. High voltage regulator
  66. Filament voltage ?
  67. Unity Gain Unbalanced to Balanced Phase Splitter
  68. Anyone know the g1-g2 capacitance of 6AU6?
  69. Any good Transformer or Tube manufactureres in India ?
  70. McMartin MA-20?
  71. Help with Jolida 302A
  72. need 13fd7 curves
  73. Drd Kt88?
  74. miniature tube amp
  75. 300B pp schematic found, what about it?
  76. Tube Output Stage
  77. se otl
  78. Toroidals as OPTs?
  79. Tube advice
  80. Understanding OPT primary Z and load matching.
  81. help with Optomal placement of output transformers.
  82. 50h B26
  83. Anyone know what this is?? Strange tube/ bulb.
  84. Please ID output transformer
  85. Cheap and Easy Tube Phono Preamp
  86. Carbon film vs metal film resistors in a stepped attenuator?
  87. Alps pots vs. TKD pots? TKD worth the extra$$?
  88. Opamp as tube driver: Protection ideas?
  89. Looking for schematics CROFT OTL APPARITION
  90. ISO (new Tango) info...
  91. Noob Question on Driver Stages
  92. High Voltage Reference
  93. DIY valve amp
  94. JJ multisection caps
  95. Inverted Interstage Transformer
  96. regarding to the design of iron-cored inductors (chokes)
  97. Trying to find an amp
  98. 12v tube output stage for cs43122 based dac?
  99. Wattages & Loudness: ?I'm Lost?
  100. cmrr of common cathode
  101. The Next Step. (and budget tube amplifier kits/designs).
  102. non-diy amplifiers with choke input power supplies
  103. Does a cathode bypass capacitor reduce hum?
  104. a tube convert tries a mosfet
  105. Motorboating in leak 20
  106. New MC preamp is comming alive
  107. HV tubes
  108. power supply pspice simulation problem
  109. Can a tube rectifier handle a C dual LC?
  110. Valve schematic & PC board design
  111. Just acqired some strange tubes.........
  112. Sovtek 6L6WXT
  113. RCA tubes, need info
  114. Stromberg Carlson 245M
  115. mounting tubes upside-down
  116. 6922 acting strange........or is it ?
  117. Fender Champ: What Transformers?
  118. Naive CCS quesion
  119. DIY scrap tubebuffer with ECC88
  120. choke current rating
  121. Velleman K8010
  122. film vs. electrolytic
  123. Tube mic preamp for speaker measurements
  124. 833a plate resistance ?
  125. second harmonic distortion
  126. Speakers not connected on tube amp, good or bad?
  127. different psu filter topologies ?
  128. Does anyone know this english amp ?
  129. kt88 power amplifier
  130. physical layout of 6B4G PP amp?
  131. Tube Life
  132. PSUD2 designer accuracy?
  133. Need advice on old 6bq5 amp...........
  134. rca83 rectifier precautions
  135. Multi chassis grounding scheme.
  136. 717a Datasheet
  137. 12B4 Battery Bias from (Preamp: Foreplay or 5687 or 12B4 )
  138. Need Six-pac amp schematic
  139. Any clue of how to use this part as a current sink for a CF?
  140. Tweeks on tubes - bring out the demagnetiserss
  141. Absolute. Best. Chassis. Ever.
  142. Zout adapted for 2 EL34 80W Va=560V
  143. load line - truth or fiction
  144. Best place to place bleeder resistor in a power supply?
  145. Pretty Tubes
  146. Preamp: Foreplay or 5687 or 12B4
  147. want to make otl with 6 tung-sol 6336a
  148. 6L6'S vs EL34's
  149. What can you tell me about Halldorson transformers
  150. CROFT OTL (APPARITION MODEL) Schematics
  151. Is there a 'Gainclone' Of the tube world?
  152. Line Amp Design review
  153. Looking for a very special project
  154. Designing a LC power supply
  155. psu caps
  156. Easiest CAD to learn to layout my chassis?
  157. newbie asks question :cathode biasing
  158. mr. pimm's ccs rev.3?
  159. Audio Research LS22 - Looking for schematics
  160. Beard P100
  161. shunt regulation??
  162. Vitamin Q VS Jensen
  163. Mystery Russian tube logo ?
  164. Counterpoint SA-7 Schematic
  165. Dual rectification off single sencondary transformer question
  166. Which preamp to choose for my ECC88s?
  167. looking for morgan jones phono amp schematic
  168. Amp for a beginner
  169. Question about direct coupling a anode follower into a cathode follower.
  170. On Line Tube Learning for newbies....
  171. EL34 Vs. EL84.......
  172. New DHT heater
  173. A Career in Tube Audio?
  174. Xicon Polypropylene Cap for Valve Amp
  175. ECC99 Heater / Cathode Max Volt
  176. Replacing Tubes
  177. schematics wanted please
  178. MCUTracer -- the missing code
  179. How do you double the voltage on a PSU?
  180. EL34 tubes to Proboi M50 amp
  181. ATH-W1000 headphones need amplifier
  182. g. pimm's rev3. and rev. 4 -6P1P/5687 ???
  183. New EL84 SE schemat.
  184. 32 NOS RCA 1644 (12L6-GT) Twin Pentode tubes
  185. reducing hum
  186. Lafayette LA-224
  187. Comments on RSD Tubes
  188. Tube heatsink
  189. wondering about direction
  190. An Ultra -linear question
  191. 5687 Preamp as I plan to build it.
  192. Hoekstra DC-Coupled 300B ... oooooh!
  193. 5687_6n1p_6p1p_gary pimm
  194. How lucky are we? TJ type 50 triode to be made. Make your preferences known now!
  195. Biasing DC heaters
  196. EL34 SE amp schematics
  197. Negative Voltage with Tube Rectification?
  198. Tube Amp on eBay
  199. Experiences with White CF/CCS CF output stage
  200. Holes in the anode plate?
  201. 5687 pre?
  202. tube design literature
  203. Trace Elliott schematic
  204. tube choice?
  205. Choke identity
  206. spotted this on ebay - 700w triodes anyone?
  207. HELP!!! for tube lovers
  208. How do you properly ground a Tamura OPT?
  209. Akihabara shopping
  210. Might be interested in this distortion thread
  211. PSE Active Loaded 12B4A anyone?
  212. Set 6080/6as7
  213. solid state just isn't doing it for me!!
  214. Where can I use this tubes
  215. Interesting math conundrum.
  216. schematic from this amp 45/717a/5u4..
  217. Strange Tube
  218. power supply help!!!!
  219. se tubeamp with px4
  220. Fixed bias PP questions
  221. Identifying Eico transformers
  222. metal shield
  223. why multi pins ?
  224. 2A3 PSE 'Arcadia' by SJS, or sorta
  225. John Swenson's (In my eyes revolutionary) preamp!
  226. tube opamps
  227. Help please with rare tube cd player
  228. OT impedance problem
  229. Amperex 6DJ8
  230. tiny amp
  231. 6C33 Internal Impedance (rp)?
  232. increasing o/p impedance to match IT??
  233. Grundig TK-60 Reel to Reel Questions
  234. Michaelson and Austin Oddysee
  235. 6gk6 tubes
  236. Anyone know anything about a 6AV5GA?
  237. A safe (?) DC coupled amp
  238. amp in trouble
  239. how to calculate lower operating point?
  240. Anyone on the tube forum ever heard a Bride Of Zen preamp?
  241. Audio Innovations 800 mk1
  242. Field of Dreams (a pair of FRT502 modulators)
  243. cathode follower
  244. ECC808- what is it more like?
  245. Help needed to find these rare values!
  246. New PP amp just completed - a few unusual features (long)
  247. MKP VS Electrolyte
  248. is 5mA too low???
  249. Dynaco FM3 220v-120v
  250. does plate current/voltage effect tube sound????

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