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  1. Decoding output transformers: strange SE's
  2. cheap and usable for 1K p-p iron?
  3. Help! Phono stage LF instability
  4. Help! Mesa Stiletto is motorboating and then fuse blows
  5. Faulty tube?
  6. Philbrick opamp bases
  7. Hammond Driver transformers
  8. 6n7/2a3
  9. Flea power for cheap OPT's?
  10. 1st Project - Half time report
  11. Claus Byrith 4-30 Questions
  12. quicksilver 8417 biasing
  13. 6sl7
  14. Trying to identify/find documentation on a 50EH5 amp
  15. Basic tests and measurements for OPTs
  16. 6SN7GT SRSE Linestage
  17. Dynaco Mark III
  18. Push Pull 300B preliminary
  19. triode thermodynamic model
  20. My first post!
  21. A Neophyte's 12B4 Build Thread
  22. Webster Hammond Model "G" amplifier
  23. Matching tubes- WE 396a/RFT EL34
  24. What is the most powerful AF tube amp ever built?
  25. SOHA Amp & PSU Layout, need feedback
  26. smoke came from transformer
  27. Startup Cost?
  28. Old or new output transformer?
  29. speaker magnet proximity Question
  30. Russian L3-3 tube tester
  31. I made a web page on building triode models /w CurveCaptor
  32. Boosted Triode mode?
  33. Unbalacing a PP output transformer?
  34. ecl86 & ez80 - suitable for guitar amp?
  35. Double C Cores
  36. Aikido Power Supply
  37. Output Noise question
  38. Power Supply Ringing
  39. Compare Sowter SA08 with Plitron 3035SE for 300B
  40. My 6C33C SING WITH No SPEAKER !
  41. MOSFET Driver for Power Pentodes
  42. Floating heater supplies
  43. Altec Amplifiers
  44. What causes the overrun bias on V4?
  45. sound comparison of Class A1 vs A2 amps
  46. 12AU7 substituted for a 6922
  47. Whats the worst that could happen?
  48. Ferranti transformers
  49. PC Cooling Fans for Tube Amps
  50. 845 circuit suggestions
  51. DIY Sofia tube tester?
  52. transformer hum / buzz getting into B+?
  53. Safe Transformerless Amps Possible?
  54. GM70 Lower Voltage PP Question
  55. phonostage with 150VDC B+
  56. Spuddo more powerfull
  57. Larry Moore 300B/10Y/6SN7GT
  58. Foreplay Preamp volume popping
  59. Altec Tube Amplifiers
  60. Circuit review
  61. DIY Tube Tester for 6336s
  62. 12dw7 to 12ax7 conversion?
  63. 26 preamp
  64. Etf07
  65. 1st Project Heater Wiring
  66. Dropped tube
  67. Great bench supply for tube work.
  68. Mullard px25 - need matched pair
  69. 2W carbon composit ressy
  70. popping noise through 1 channel on Radford STA15
  71. Point to point wiring help
  72. 1st Time Project - Report 2 + advice sought
  73. "Simple" 2A3
  74. vinyl v cd differences - phono pre and cd-player
  75. Shielded input cable
  76. knight guitar amp conversion
  77. Dumb motor run capacitor question
  78. Coupling caps in ST35
  79. Mentmore M100
  80. How to match tubes?
  81. Transcendent OTL T8 Vs. Atma-Sphere M60
  82. New 12AX7A Pspice model
  83. What does R2D2, Mickey Mouse and a...
  84. Why 5V filament
  85. Alloys for filaments
  86. 6360 as Power Tube for SE amp
  87. Bridging Stereo Amps
  88. Problem with 6L6 Monoblock
  89. Gain
  90. Proper grounding method...
  91. Changing a tube amp...
  92. Houston Mini 2004 Pot question
  93. Diode Heatsink
  94. Looking for a PCB / kit for a bipolar tube rectified PSU
  95. compactron output stage and power supply
  96. Better sounding ECL86's
  97. Heathkit EA-3 conversion to guitar amp
  98. interesting amp & interesting problem
  99. Hybrid Tube / Mosfet Amplifier
  100. Again (sorry) what's the biggest 6V heater double rectifier?
  101. PP EL34 circuit wanted
  102. Need advice for transformer for tube GM 70.
  103. Pentode filter
  104. How to calculate for cathode follower
  105. 6L6WXT in a Dynaco ST-70
  106. tube preamp using submini tube
  107. SE Trafo for PP use
  108. WE91A Pentode Questions?
  109. Lower voltage Dynaco ST35 for 6P14P // 7247 replacement
  110. looking for schematic; three EL84's in PSE ?
  111. Need work done on a dynaco power amp
  112. quick question on fixed bias
  113. DIY Tube Audio dealers in New Zealand
  114. ornec
  115. Tuner filament supply question
  116. An idea for a partial feedback pentode amp using 6AU6's and 807's
  117. Tube current regulation for series heaters' supply.
  118. Bogen PCA-1 two tube booster amp
  119. First time building a tube preamp
  120. B&K 700 problems?
  121. Silvertone 1482 Blowing Rectifier Tubes
  122. Voltage Multipliers
  123. Russian 6P14P tubes
  124. Where to get tube spec sheets, pinouts
  125. PCL 82 Hybrid 2SC5200/2SA1943
  126. CCS in Otput Tube Cathode - Does It Make Sense?
  127. My Guitar Tube Amp. Help needed with Mesa/Boogie pre
  128. My brew of the "Darling"
  129. Series connection of filaments
  130. noisy filament transformer
  131. Circuit diagram for Trilogy VTi.
  132. Got oddball tubes!
  133. A photo for my question
  134. Make a preamp with an already buil amplifier
  135. DN2540
  136. mods for almarro amp
  137. Filament Transformer
  138. Circuit indentification
  139. Simplest Tube Regulated PSU?
  140. High Voltage Insulator for Umbilical
  141. wiring diagram, instruction on the transformer S-265-Q
  142. help me get started
  143. 12AU7 instead of 6C4
  144. Fisher 600 questions
  145. Phase inverter
  146. srpp input stage
  147. Orientation of EL34 Tubes
  148. Load termination ?
  149. Advice on SE DHT for Lowther Fidelio DX2
  150. Dynacord MV46 as a compressor
  151. Biggest dual triode output tube?
  152. OPT impedance question
  153. Partridge SE O/P transformers
  154. SimpleSE and me
  155. SRPP decoupling cap vs. output transformer
  156. Differences between 6SN7GTA and 6SN7GTB?
  157. Radford STA-15 questions
  158. Balanced Input Hookup
  159. Need Tube Testing Settings for 3 tubes
  160. Need helping in Grounded Grid preamp using 6H6P 6H30P
  161. Regulated Lab DC power supply
  162. Fixed Bias 6BQ5?
  163. Heathkit AG7 Audio Geneator
  164. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  165. NEWBIE question SET vs. Solid State
  166. 6N6P cascode + 6AS7 Cathode follower
  167. Help me calculator OPT for 807, 6C4C tubes.
  168. Now I have caught the bug - next project
  169. 20W cathode follower amplifier
  170. Muting line level signals
  171. Anywhere in Hong Kong...
  172. RIAA / Pre mod/upgrade
  173. IT WORKS! Tube Phono Stage
  174. 2033 info sought
  175. Pentode Zeus
  176. 5987 (sc968b)
  177. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  178. JAN Sylvania 7308 vs. JAN Sylvania 6922
  179. recording amp
  180. A Tee-Vee T00b Amp
  181. metal tube lineup for a guitar amp
  182. Locating a bad resistor
  183. MiscEI
  184. ST70 iron recommendations please
  185. need help finding a link . . .
  186. Cathodyne Phase Inverter question
  187. Using a ignition coil for a audio transformer
  188. Multiple primary windings
  189. mcintosh mc3500 clone
  190. B+ Delay
  191. My attempt: 5 element Pentode Spice model
  192. Spelling, capitalization, and grammar.
  193. Power Supply
  194. Output Autotransformers
  195. Multi Section Cap....diy?
  196. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  197. Tube rectifier to Solid state Diodes exchange
  198. Hickok 533A help
  199. Custom Cards For B&K 675 Tester
  200. Peavey Heritage VTX - Bias Question
  201. EMC Model 200 Tube Tester Any Info Pls
  202. Guitar amp PT design questions
  203. Bada PH-1 simple box mod
  204. Tubes Rectifier Help?
  205. How to make sense of LTSpice FFT analysis?
  206. Cascode with local feedback
  207. amps
  208. how to preserve copper plates?
  209. Stereo EL34 amplifier
  210. SA 3000 Counterpoint
  211. tube amp transformer identification
  212. Beginner needs advices for 807 PP project
  213. Heater Power Supply Pspice model
  214. FWCT Rectification
  215. dc or not dc
  216. OTL for dummies.
  217. TCJ Cathode-Coupled Amplifier
  218. 845 Low voltage SE AMP
  219. Vacuum Tube Computer Simulation Modeling
  220. Getting a vintage amp to work
  221. Switched DC/DCconverter for B+
  222. What can I do with this?
  223. Super Pas Two
  224. pspice model of 811A
  225. Question on what is more important B+ or Plate Voltage
  226. Can I trust SPICE?
  227. Power supply filter mod
  228. Does antone interested xxx PCB groupbuy ?
  229. 1 signal ground or two?
  230. Peavey Heritage VTX - Schematics
  231. #47......
  232. Hammond 1650F
  233. 100 watt KT88/6550 Designs
  234. What glue to use for tube glass bulb + base
  235. Tube filaments (heaters) power supply
  236. Quick Ecl86/6gw8 Amp
  237. Need help on eq. hook up for new tube system
  238. Alternatives to the Dynaco ST-70
  239. I need some eq. hook up expert advice please!
  240. Please help identify which plug I need for this socket
  241. Svetlana KT88 winged C's failings
  242. PP amp using 6p15P
  243. Time for another round of "Criticise my Circuit"... err..I mean
  244. Adding a parallel feed on DRD
  245. How hot can resistor stands?
  246. Hybrid amplifier A2 class
  247. Diodes on power supply output for voltage drop?
  248. Converting from single ended parafeed to differential
  249. micro-amp SE with 2,5k OPT+
  250. Unknown Tube Amp

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