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  1. 1st Project Heater Wiring
  2. Dropped tube
  3. Great bench supply for tube work.
  4. Mullard px25 - need matched pair
  5. 2W carbon composit ressy
  6. popping noise through 1 channel on Radford STA15
  7. Point to point wiring help
  8. 1st Time Project - Report 2 + advice sought
  9. "Simple" 2A3
  10. vinyl v cd differences - phono pre and cd-player
  11. Shielded input cable
  12. knight guitar amp conversion
  13. Dumb motor run capacitor question
  14. Coupling caps in ST35
  15. Mentmore M100
  16. How to match tubes?
  17. Transcendent OTL T8 Vs. Atma-Sphere M60
  18. New 12AX7A Pspice model
  19. What does R2D2, Mickey Mouse and a...
  20. Why 5V filament
  21. Alloys for filaments
  22. 6360 as Power Tube for SE amp
  23. Bridging Stereo Amps
  24. Problem with 6L6 Monoblock
  25. Gain
  26. Proper grounding method...
  27. Changing a tube amp...
  28. Houston Mini 2004 Pot question
  29. Diode Heatsink
  30. Looking for a PCB / kit for a bipolar tube rectified PSU
  31. compactron output stage and power supply
  32. Better sounding ECL86's
  33. Heathkit EA-3 conversion to guitar amp
  34. interesting amp & interesting problem
  35. Hybrid Tube / Mosfet Amplifier
  36. Again (sorry) what's the biggest 6V heater double rectifier?
  37. PP EL34 circuit wanted
  38. Need advice for transformer for tube GM 70.
  39. Pentode filter
  40. How to calculate for cathode follower
  41. 6L6WXT in a Dynaco ST-70
  42. tube preamp using submini tube
  43. SE Trafo for PP use
  44. WE91A Pentode Questions?
  45. Lower voltage Dynaco ST35 for 6P14P // 7247 replacement
  46. looking for schematic; three EL84's in PSE ?
  47. Need work done on a dynaco power amp
  48. quick question on fixed bias
  49. DIY Tube Audio dealers in New Zealand
  50. ornec
  51. Tuner filament supply question
  52. An idea for a partial feedback pentode amp using 6AU6's and 807's
  53. Tube current regulation for series heaters' supply.
  54. Bogen PCA-1 two tube booster amp
  55. First time building a tube preamp
  56. B&K 700 problems?
  57. Silvertone 1482 Blowing Rectifier Tubes
  58. Voltage Multipliers
  59. Russian 6P14P tubes
  60. Where to get tube spec sheets, pinouts
  61. PCL 82 Hybrid 2SC5200/2SA1943
  62. CCS in Otput Tube Cathode - Does It Make Sense?
  63. My Guitar Tube Amp. Help needed with Mesa/Boogie pre
  64. My brew of the "Darling"
  65. Series connection of filaments
  66. noisy filament transformer
  67. Circuit diagram for Trilogy VTi.
  68. Got oddball tubes!
  69. A photo for my question
  70. Make a preamp with an already buil amplifier
  71. DN2540
  72. mods for almarro amp
  73. Filament Transformer
  74. Circuit indentification
  75. Simplest Tube Regulated PSU?
  76. High Voltage Insulator for Umbilical
  77. wiring diagram, instruction on the transformer S-265-Q
  78. help me get started
  79. 12AU7 instead of 6C4
  80. Fisher 600 questions
  81. Phase inverter
  82. srpp input stage
  83. Orientation of EL34 Tubes
  84. Load termination ?
  85. Advice on SE DHT for Lowther Fidelio DX2
  86. Dynacord MV46 as a compressor
  87. Biggest dual triode output tube?
  88. OPT impedance question
  89. Partridge SE O/P transformers
  90. SimpleSE and me
  91. SRPP decoupling cap vs. output transformer
  92. Differences between 6SN7GTA and 6SN7GTB?
  93. Radford STA-15 questions
  94. Balanced Input Hookup
  95. Need Tube Testing Settings for 3 tubes
  96. Need helping in Grounded Grid preamp using 6H6P 6H30P
  97. Regulated Lab DC power supply
  98. Fixed Bias 6BQ5?
  99. Heathkit AG7 Audio Geneator
  100. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  101. NEWBIE question SET vs. Solid State
  102. 6N6P cascode + 6AS7 Cathode follower
  103. Help me calculator OPT for 807, 6C4C tubes.
  104. Now I have caught the bug - next project
  105. 20W cathode follower amplifier
  106. Muting line level signals
  107. Anywhere in Hong Kong...
  108. RIAA / Pre mod/upgrade
  109. IT WORKS! Tube Phono Stage
  110. 2033 info sought
  111. Pentode Zeus
  112. 5987 (sc968b)
  113. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  114. JAN Sylvania 7308 vs. JAN Sylvania 6922
  115. recording amp
  116. A Tee-Vee T00b Amp
  117. metal tube lineup for a guitar amp
  118. Locating a bad resistor
  119. MiscEI
  120. ST70 iron recommendations please
  121. need help finding a link . . .
  122. Cathodyne Phase Inverter question
  123. Using a ignition coil for a audio transformer
  124. Multiple primary windings
  125. mcintosh mc3500 clone
  126. B+ Delay
  127. My attempt: 5 element Pentode Spice model
  128. Spelling, capitalization, and grammar.
  129. Power Supply
  130. Output Autotransformers
  131. Multi Section Cap....diy?
  132. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  133. Tube rectifier to Solid state Diodes exchange
  134. Hickok 533A help
  135. Custom Cards For B&K 675 Tester
  136. Peavey Heritage VTX - Bias Question
  137. EMC Model 200 Tube Tester Any Info Pls
  138. Guitar amp PT design questions
  139. Bada PH-1 simple box mod
  140. Tubes Rectifier Help?
  141. How to make sense of LTSpice FFT analysis?
  142. Cascode with local feedback
  143. amps
  144. how to preserve copper plates?
  145. Stereo EL34 amplifier
  146. SA 3000 Counterpoint
  147. tube amp transformer identification
  148. Beginner needs advices for 807 PP project
  149. Heater Power Supply Pspice model
  150. FWCT Rectification
  151. dc or not dc
  152. OTL for dummies.
  153. TCJ Cathode-Coupled Amplifier
  154. 845 Low voltage SE AMP
  155. Vacuum Tube Computer Simulation Modeling
  156. Getting a vintage amp to work
  157. Switched DC/DCconverter for B+
  158. What can I do with this?
  159. Super Pas Two
  160. pspice model of 811A
  161. Question on what is more important B+ or Plate Voltage
  162. Can I trust SPICE?
  163. Power supply filter mod
  164. Does antone interested xxx PCB groupbuy ?
  165. 1 signal ground or two?
  166. Peavey Heritage VTX - Schematics
  167. #47......
  168. Hammond 1650F
  169. 100 watt KT88/6550 Designs
  170. What glue to use for tube glass bulb + base
  171. Tube filaments (heaters) power supply
  172. Quick Ecl86/6gw8 Amp
  173. Need help on eq. hook up for new tube system
  174. Alternatives to the Dynaco ST-70
  175. I need some eq. hook up expert advice please!
  176. Please help identify which plug I need for this socket
  177. Svetlana KT88 winged C's failings
  178. PP amp using 6p15P
  179. Time for another round of "Criticise my Circuit"... err..I mean
  180. Adding a parallel feed on DRD
  181. How hot can resistor stands?
  182. Hybrid amplifier A2 class
  183. Diodes on power supply output for voltage drop?
  184. Converting from single ended parafeed to differential
  185. micro-amp SE with 2,5k OPT+
  186. Unknown Tube Amp
  187. Aikido AC Heater Supply
  188. Help me find some odd looking rectifiers!
  189. So, you may have been wondering...(813 Content !)
  190. Just sharing my 26 experience last night...
  191. Simple 5842-45 SET Amp Design Idea
  192. Yamamoto teflon sockets
  193. new thread, 6BM8 PP build begins...
  194. KT88 Heater Current
  195. 150V plate output tubes
  196. Newbie need to help
  197. Help me please
  198. Elekit TU-870 help
  199. Looking for schematic of Audible Illusion Modulus 3A preamp
  200. Junker Box amp
  201. aikido hybrid with 5 A bias
  202. Shall we compile a list?
  203. drift in direct coupled tubes
  204. Hammond 2XX vs 3XX Power Tranny Questions
  205. Help with this transformer please...
  206. Capacitor upgrade in Paragon 12A
  207. Light bulbs as cathode resistors?
  208. Favorite Threads and Posts in "Tubes" Forum
  209. I need 12v DC- whats the best option?
  210. Beard P35 and Tubes Replacement
  211. Graphic 1/3 Octave Tube Equaliser
  212. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  213. Power Supply Design
  214. Gomes amp
  215. pignose g40v power transformer
  216. Grid battery biased SE output stages
  217. KT88 amp schematic/parts list
  218. Wire Wrap connections for point to point
  219. Aikido Tubes
  220. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  221. Schematic Question
  222. EL34 as triode?
  223. Linestage Questions
  224. Help! Building Jax's HFTA
  225. Gobs of AC on ISCO 494
  226. Change step up ratio of input transformer?
  227. LCR RIAA rebuild
  228. common mode choke question
  229. Choosing Choke
  230. Input impedance
  231. Hey Tubelab, Transformer Question
  232. Hybrid Rectifier Check Please !
  233. 1st tube project, tubalizer?
  234. 1st Time project - Report 1
  235. ED-8000 set amp
  236. Hitachi v-202 scope
  237. Cheap and nice looking SE OPT
  238. How much difference 0.22 vs 0.33 cap?
  239. Tubelab SimpleSE
  240. 813 final design?
  241. HPHV regulator, designed by Emile Sprenger
  242. Counterpoint tube amps
  243. SS or tube voltage amplifying stages in an amp with tube output?
  244. 24V Aikido --> 6GM8 with Buffer
  245. Motorboating in Dynaco ST-70
  246. Does such a tube exist?
  247. Noisy PSU?
  248. Bell & Howell amp
  249. Valve Amp with soild state front end
  250. Controlling transient response

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