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  1. 300B SE cathode feedback to grid?
  2. hummmmmmm?
  3. no bass makes pedro a whiny boy
  4. Iron, glass, sand and lead.
  5. Is this any good? Considerations
  6. 2A3 SET Output Transformer opinions/recommendations
  7. My 6C45 DC 6C41, advice wanted
  8. DIY valve
  9. A good SE project?
  10. who will build me this special "line tubeamp"
  11. PI filters
  12. Designing a simple dc filament supply?
  13. Rogers Cadett amp
  14. HI & a few words/questions ...
  15. 6d22s
  16. eBay
  17. Chassis layout for Stereo JE Labs 300BDX
  18. Output transformer help
  19. CAD Program for Tubes
  20. 801A/816 tubes wanted
  21. This little thing might save your life!
  22. What happens if I loose the cathode bias?
  23. beginners ecl82 power supply
  24. 2MHz, High voltage source?
  25. beginner's ecl82
  26. Handmade Electronics Metal Punches?
  27. EL34 types
  28. Spice Model 6CW4
  29. El/pl 519
  30. Euridice symetric to Amp?
  31. use of 6dj8 as driver on a direct coupled 2a3 se amp
  32. Western Electric 275A Schematic
  33. Where to source 833 power tube
  34. capacitor reactance
  35. Overvoltaging resistors
  36. EL84 Push Pull amp.
  37. Power supply load capacity
  38. Tube preamp problem
  39. E88C (6DL4/ 8255), any circuit for it?
  40. Is there a name for this drive method?
  41. 6BM8 Question
  42. Tube mic preamp/mixer
  43. Please cast your votes..or make a suggestion or 2
  44. RIAA in LTspice
  45. Parallel ECC82 comment please
  46. A push-pull amp i can live with
  47. Sub-miniature russian amp help
  48. Tube Optical-Isolation Unit
  49. MKP in the Powersupply.
  50. 6SN7-GTB Globe (Chinese)
  51. 12BH7 Specs
  52. Is this worth my time?
  53. choke value
  54. ipod + tubes
  55. Leak tl/25+ OPT selection
  56. Gabevee's Maggie (MAG1515)
  57. Can partial feedback be as effective as global fb for decent damping factor?
  58. Which trans wire is which?
  59. What's wrong with this tube?
  60. F: great sound control with ECC82
  61. 30W UL 6L6P-P amp
  62. 300B stereo SE amp and PP2A3 monoblocks
  63. 6S45P matching
  64. Inductors made for crossover in an amp?
  65. PX4 or AVO44 or AV044 based SETA
  66. power conditioning
  67. Microphone preamp with compressor
  68. Current production rectifiers
  69. mu stage help...
  70. Non-Polar caps to cathode bypass
  71. 5u4 / solid state switchable supply
  72. 12AX7 sound ... going with the trend
  73. 6L6 PP Design Recommendations?
  74. EL 34 30W ultra linear
  75. Convert Audion Silver Knight PP monos
  76. Too much gain
  77. The long lost linear gain stage
  78. Philco power tranny diagram/5u4 supply
  79. Kt88 Se
  80. supersize me, please. (powersupply)
  81. Seeking advice on "Circlotron" cross-coupled feedback OTL design
  82. Best 6CA7?
  83. ECC99 line preamp
  84. variable regulated negitive grid supply
  85. hum loop advice
  86. Against all odds...
  87. 6as7 se amp
  88. Help .. tube amplifier .. 1st !
  89. winding a toroidal pp output
  90. solid state Vs Tube Rectification
  91. Cryoed Tubes...what To Expect?
  92. I'm looking for 6H13C tubes
  93. Which ST-70 ?
  94. Some questions about Van Scoyoc X-coupled splitter
  95. Quicksilver 8417 bias runaway?
  96. Most effective use of valve pre & active xover
  97. Tube possibilities for 2.9k-ohm speaker?
  98. Help on Preamp Mute Switch
  99. Fixed bias supply problems...
  100. Help with VTL preamp...
  101. question about 811A and 572B
  102. Dual Stereo Cathode Folower Setup
  103. Audio Innovation 1000 SE
  104. 6as7 PP Schematic Help
  105. Newbie Question: Need help diagnosing a problem, tubes on, music fades out quickly
  106. 7591EH failure
  107. opt frequency response
  108. Anyone got any opinions on this?
  109. My ForePlay Processor Controlled Preamp
  110. Tube ghetto blaster ?
  111. Help trouble shooting
  112. "The Fisher" tube amp 7189 output tubes
  113. UTC output transformers specs
  114. Regulation options for 807 g2
  115. My Mullard 5/20
  116. KT88 power amp
  117. High voltage regulator
  118. Filament voltage ?
  119. Unity Gain Unbalanced to Balanced Phase Splitter
  120. Anyone know the g1-g2 capacitance of 6AU6?
  121. Any good Transformer or Tube manufactureres in India ?
  122. McMartin MA-20?
  123. Help with Jolida 302A
  124. need 13fd7 curves
  125. Drd Kt88?
  126. miniature tube amp
  127. 300B pp schematic found, what about it?
  128. Tube Output Stage
  129. se otl
  130. Toroidals as OPTs?
  131. Tube advice
  132. Understanding OPT primary Z and load matching.
  133. help with Optomal placement of output transformers.
  134. 50h B26
  135. Anyone know what this is?? Strange tube/ bulb.
  136. Please ID output transformer
  137. Cheap and Easy Tube Phono Preamp
  138. Carbon film vs metal film resistors in a stepped attenuator?
  139. Alps pots vs. TKD pots? TKD worth the extra$$?
  140. Opamp as tube driver: Protection ideas?
  141. Looking for schematics CROFT OTL APPARITION
  142. ISO (new Tango) info...
  143. Noob Question on Driver Stages
  144. High Voltage Reference
  145. DIY valve amp
  146. Inverted Interstage Transformer
  147. regarding to the design of iron-cored inductors (chokes)
  148. Trying to find an amp
  149. 12v tube output stage for cs43122 based dac?
  150. Wattages & Loudness: ?I'm Lost?
  151. cmrr of common cathode
  152. The Next Step. (and budget tube amplifier kits/designs).
  153. non-diy amplifiers with choke input power supplies
  154. Does a cathode bypass capacitor reduce hum?
  155. a tube convert tries a mosfet
  156. Motorboating in leak 20
  157. New MC preamp is comming alive
  158. HV tubes
  159. power supply pspice simulation problem
  160. Can a tube rectifier handle a C dual LC?
  161. Valve schematic & PC board design
  162. Just acqired some strange tubes.........
  163. Sovtek 6L6WXT
  164. RCA tubes, need info
  165. Stromberg Carlson 245M
  166. mounting tubes upside-down
  167. 6922 acting strange........or is it ?
  168. Naive CCS quesion
  169. DIY scrap tubebuffer with ECC88
  170. choke current rating
  171. Velleman K8010
  172. Tube mic preamp for speaker measurements
  173. 833a plate resistance ?
  174. second harmonic distortion
  175. Speakers not connected on tube amp, good or bad?
  176. different psu filter topologies ?
  177. Does anyone know this english amp ?
  178. kt88 power amplifier
  179. physical layout of 6B4G PP amp?
  180. Tube Life
  181. PSUD2 designer accuracy?
  182. Need advice on old 6bq5 amp...........
  183. rca83 rectifier precautions
  184. Multi chassis grounding scheme.
  185. 717a Datasheet
  186. 12B4 Battery Bias from (Preamp: Foreplay or 5687 or 12B4 )
  187. Need Six-pac amp schematic
  188. Any clue of how to use this part as a current sink for a CF?
  189. Tweeks on tubes - bring out the demagnetiserss
  190. Absolute. Best. Chassis. Ever.
  191. Zout adapted for 2 EL34 80W Va=560V
  192. load line - truth or fiction
  193. Best place to place bleeder resistor in a power supply?
  194. Pretty Tubes
  195. Preamp: Foreplay or 5687 or 12B4
  196. want to make otl with 6 tung-sol 6336a
  197. 6L6'S vs EL34's
  198. What can you tell me about Halldorson transformers
  199. CROFT OTL (APPARITION MODEL) Schematics
  200. Is there a 'Gainclone' Of the tube world?
  201. Line Amp Design review
  202. Looking for a very special project
  203. Designing a LC power supply
  204. Easiest CAD to learn to layout my chassis?
  205. newbie asks question :cathode biasing
  206. mr. pimm's ccs rev.3?
  207. Audio Research LS22 - Looking for schematics
  208. Beard P100
  209. shunt regulation??
  210. Vitamin Q VS Jensen
  211. Mystery Russian tube logo ?
  212. Counterpoint SA-7 Schematic
  213. Dual rectification off single sencondary transformer question
  214. Which preamp to choose for my ECC88s?
  215. looking for morgan jones phono amp schematic
  216. Amp for a beginner
  217. Question about direct coupling a anode follower into a cathode follower.
  218. On Line Tube Learning for newbies....
  219. EL34 Vs. EL84.......
  220. New DHT heater
  221. A Career in Tube Audio?
  222. Xicon Polypropylene Cap for Valve Amp
  223. ECC99 Heater / Cathode Max Volt
  224. Replacing Tubes
  225. schematics wanted please
  226. MCUTracer -- the missing code
  227. How do you double the voltage on a PSU?
  228. EL34 tubes to Proboi M50 amp
  229. ATH-W1000 headphones need amplifier
  230. g. pimm's rev3. and rev. 4 -6P1P/5687 ???
  231. New EL84 SE schemat.
  232. 32 NOS RCA 1644 (12L6-GT) Twin Pentode tubes
  233. reducing hum
  234. Lafayette LA-224
  235. Comments on RSD Tubes
  236. Tube heatsink
  237. wondering about direction
  238. An Ultra -linear question
  239. 5687 Preamp as I plan to build it.
  240. Hoekstra DC-Coupled 300B ... oooooh!
  241. 5687_6n1p_6p1p_gary pimm
  242. How lucky are we? TJ type 50 triode to be made. Make your preferences known now!
  243. Biasing DC heaters
  244. EL34 SE amp schematics
  245. Negative Voltage with Tube Rectification?
  246. Tube Amp on eBay
  247. Experiences with White CF/CCS CF output stage
  248. Holes in the anode plate?
  249. 5687 pre?
  250. tube design literature

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