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  1. 300B Amp on ebay
  2. Would a 396A or 2C51 drive a 45?
  3. PSUD2 Q on regulator
  4. My last design
  5. Silvertone 1481 power transformer?
  6. OPT for 250th Se A2
  7. 829B, 3E29, QQV03-20 Connector
  8. Measuring from UK schematic but on US mains
  9. strange tube
  10. cathode resistor ?? in p-p fixed bias
  11. Need Help please . Headphones into line up of tube amp .
  12. 5Z4 inrush current too high
  13. Reducing gain on Audible Illusions M3A
  14. Decoding output transformers: strange SE's
  15. cheap and usable for 1K p-p iron?
  16. Help! Phono stage LF instability
  17. Help! Mesa Stiletto is motorboating and then fuse blows
  18. Faulty tube?
  19. Philbrick opamp bases
  20. Hammond Driver transformers
  21. 6n7/2a3
  22. Flea power for cheap OPT's?
  23. 1st Project - Half time report
  24. Claus Byrith 4-30 Questions
  25. quicksilver 8417 biasing
  26. 6sl7
  27. Trying to identify/find documentation on a 50EH5 amp
  28. Basic tests and measurements for OPTs
  29. 6SN7GT SRSE Linestage
  30. Dynaco Mark III
  31. Push Pull 300B preliminary
  32. triode thermodynamic model
  33. My first post!
  34. A Neophyte's 12B4 Build Thread
  35. Webster Hammond Model "G" amplifier
  36. Matching tubes- WE 396a/RFT EL34
  37. What is the most powerful AF tube amp ever built?
  38. SOHA Amp & PSU Layout, need feedback
  39. smoke came from transformer
  40. Startup Cost?
  41. Old or new output transformer?
  42. speaker magnet proximity Question
  43. Russian L3-3 tube tester
  44. I made a web page on building triode models /w CurveCaptor
  45. Boosted Triode mode?
  46. Unbalacing a PP output transformer?
  47. ecl86 & ez80 - suitable for guitar amp?
  48. Double C Cores
  49. Aikido Power Supply
  50. Output Noise question
  51. Power Supply Ringing
  52. Compare Sowter SA08 with Plitron 3035SE for 300B
  53. My 6C33C SING WITH No SPEAKER !
  54. MOSFET Driver for Power Pentodes
  55. Floating heater supplies
  56. Altec Amplifiers
  57. What causes the overrun bias on V4?
  58. sound comparison of Class A1 vs A2 amps
  59. 12AU7 substituted for a 6922
  60. Whats the worst that could happen?
  61. Ferranti transformers
  62. PC Cooling Fans for Tube Amps
  63. 845 circuit suggestions
  64. DIY Sofia tube tester?
  65. transformer hum / buzz getting into B+?
  66. Safe Transformerless Amps Possible?
  67. GM70 Lower Voltage PP Question
  68. phonostage with 150VDC B+
  69. Spuddo more powerfull
  70. Larry Moore 300B/10Y/6SN7GT
  71. Foreplay Preamp volume popping
  72. Altec Tube Amplifiers
  73. Circuit review
  74. DIY Tube Tester for 6336s
  75. 12dw7 to 12ax7 conversion?
  76. 26 preamp
  77. Etf07
  78. 1st Project Heater Wiring
  79. Dropped tube
  80. Great bench supply for tube work.
  81. Mullard px25 - need matched pair
  82. 2W carbon composit ressy
  83. popping noise through 1 channel on Radford STA15
  84. Point to point wiring help
  85. 1st Time Project - Report 2 + advice sought
  86. "Simple" 2A3
  87. vinyl v cd differences - phono pre and cd-player
  88. Shielded input cable
  89. knight guitar amp conversion
  90. Dumb motor run capacitor question
  91. Coupling caps in ST35
  92. Mentmore M100
  93. How to match tubes?
  94. Transcendent OTL T8 Vs. Atma-Sphere M60
  95. New 12AX7A Pspice model
  96. What does R2D2, Mickey Mouse and a...
  97. Why 5V filament
  98. Alloys for filaments
  99. 6360 as Power Tube for SE amp
  100. Bridging Stereo Amps
  101. Problem with 6L6 Monoblock
  102. Gain
  103. Proper grounding method...
  104. Changing a tube amp...
  105. Houston Mini 2004 Pot question
  106. Diode Heatsink
  107. Looking for a PCB / kit for a bipolar tube rectified PSU
  108. compactron output stage and power supply
  109. Better sounding ECL86's
  110. Heathkit EA-3 conversion to guitar amp
  111. interesting amp & interesting problem
  112. Hybrid Tube / Mosfet Amplifier
  113. Again (sorry) what's the biggest 6V heater double rectifier?
  114. PP EL34 circuit wanted
  115. Need advice for transformer for tube GM 70.
  116. Pentode filter
  117. How to calculate for cathode follower
  118. 6L6WXT in a Dynaco ST-70
  119. tube preamp using submini tube
  120. SE Trafo for PP use
  121. WE91A Pentode Questions?
  122. Lower voltage Dynaco ST35 for 6P14P // 7247 replacement
  123. looking for schematic; three EL84's in PSE ?
  124. Need work done on a dynaco power amp
  125. quick question on fixed bias
  126. DIY Tube Audio dealers in New Zealand
  127. ornec
  128. Tuner filament supply question
  129. An idea for a partial feedback pentode amp using 6AU6's and 807's
  130. Tube current regulation for series heaters' supply.
  131. Bogen PCA-1 two tube booster amp
  132. First time building a tube preamp
  133. B&K 700 problems?
  134. Silvertone 1482 Blowing Rectifier Tubes
  135. Voltage Multipliers
  136. Russian 6P14P tubes
  137. Where to get tube spec sheets, pinouts
  138. PCL 82 Hybrid 2SC5200/2SA1943
  139. CCS in Otput Tube Cathode - Does It Make Sense?
  140. My Guitar Tube Amp. Help needed with Mesa/Boogie pre
  141. My brew of the "Darling"
  142. Series connection of filaments
  143. noisy filament transformer
  144. Circuit diagram for Trilogy VTi.
  145. Got oddball tubes!
  146. A photo for my question
  147. Make a preamp with an already buil amplifier
  148. DN2540
  149. mods for almarro amp
  150. Filament Transformer
  151. Circuit indentification
  152. Simplest Tube Regulated PSU?
  153. High Voltage Insulator for Umbilical
  154. wiring diagram, instruction on the transformer S-265-Q
  155. help me get started
  156. 12AU7 instead of 6C4
  157. Fisher 600 questions
  158. Phase inverter
  159. srpp input stage
  160. Orientation of EL34 Tubes
  161. Load termination ?
  162. Advice on SE DHT for Lowther Fidelio DX2
  163. Dynacord MV46 as a compressor
  164. Biggest dual triode output tube?
  165. OPT impedance question
  166. Partridge SE O/P transformers
  167. SimpleSE and me
  168. SRPP decoupling cap vs. output transformer
  169. Differences between 6SN7GTA and 6SN7GTB?
  170. Radford STA-15 questions
  171. Balanced Input Hookup
  172. Need Tube Testing Settings for 3 tubes
  173. Need helping in Grounded Grid preamp using 6H6P 6H30P
  174. Regulated Lab DC power supply
  175. Fixed Bias 6BQ5?
  176. Heathkit AG7 Audio Geneator
  177. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  178. NEWBIE question SET vs. Solid State
  179. 6N6P cascode + 6AS7 Cathode follower
  180. Help me calculator OPT for 807, 6C4C tubes.
  181. Now I have caught the bug - next project
  182. 20W cathode follower amplifier
  183. Muting line level signals
  184. Anywhere in Hong Kong...
  185. RIAA / Pre mod/upgrade
  186. IT WORKS! Tube Phono Stage
  187. 2033 info sought
  188. Pentode Zeus
  189. 5987 (sc968b)
  190. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  191. JAN Sylvania 7308 vs. JAN Sylvania 6922
  192. recording amp
  193. A Tee-Vee T00b Amp
  194. metal tube lineup for a guitar amp
  195. Locating a bad resistor
  196. MiscEI
  197. ST70 iron recommendations please
  198. need help finding a link . . .
  199. Cathodyne Phase Inverter question
  200. Using a ignition coil for a audio transformer
  201. Multiple primary windings
  202. mcintosh mc3500 clone
  203. B+ Delay
  204. My attempt: 5 element Pentode Spice model
  205. Spelling, capitalization, and grammar.
  206. Power Supply
  207. Output Autotransformers
  208. Multi Section Cap....diy?
  209. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  210. Tube rectifier to Solid state Diodes exchange
  211. Hickok 533A help
  212. Custom Cards For B&K 675 Tester
  213. Peavey Heritage VTX - Bias Question
  214. EMC Model 200 Tube Tester Any Info Pls
  215. Guitar amp PT design questions
  216. Bada PH-1 simple box mod
  217. Tubes Rectifier Help?
  218. How to make sense of LTSpice FFT analysis?
  219. Cascode with local feedback
  220. amps
  221. how to preserve copper plates?
  222. Stereo EL34 amplifier
  223. SA 3000 Counterpoint
  224. tube amp transformer identification
  225. Beginner needs advices for 807 PP project
  226. Heater Power Supply Pspice model
  227. FWCT Rectification
  228. dc or not dc
  229. OTL for dummies.
  230. TCJ Cathode-Coupled Amplifier
  231. 845 Low voltage SE AMP
  232. Vacuum Tube Computer Simulation Modeling
  233. Getting a vintage amp to work
  234. Switched DC/DCconverter for B+
  235. What can I do with this?
  236. Super Pas Two
  237. pspice model of 811A
  238. Question on what is more important B+ or Plate Voltage
  239. Can I trust SPICE?
  240. Power supply filter mod
  241. Does antone interested xxx PCB groupbuy ?
  242. 1 signal ground or two?
  243. Peavey Heritage VTX - Schematics
  244. #47......
  245. Hammond 1650F
  246. 100 watt KT88/6550 Designs
  247. What glue to use for tube glass bulb + base
  248. Tube filaments (heaters) power supply
  249. Quick Ecl86/6gw8 Amp
  250. Need help on eq. hook up for new tube system

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