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  1. First time building a tube preamp
  2. B&K 700 problems?
  3. Silvertone 1482 Blowing Rectifier Tubes
  4. Voltage Multipliers
  5. Russian 6P14P tubes
  6. Where to get tube spec sheets, pinouts
  7. PCL 82 Hybrid 2SC5200/2SA1943
  8. CCS in Otput Tube Cathode - Does It Make Sense?
  9. My Guitar Tube Amp. Help needed with Mesa/Boogie pre
  10. My brew of the "Darling"
  11. Series connection of filaments
  12. noisy filament transformer
  13. Circuit diagram for Trilogy VTi.
  14. Got oddball tubes!
  15. A photo for my question
  16. Make a preamp with an already buil amplifier
  17. DN2540
  18. mods for almarro amp
  19. Filament Transformer
  20. Circuit indentification
  21. Simplest Tube Regulated PSU?
  22. High Voltage Insulator for Umbilical
  23. wiring diagram, instruction on the transformer S-265-Q
  24. help me get started
  25. 12AU7 instead of 6C4
  26. Fisher 600 questions
  27. Phase inverter
  28. srpp input stage
  29. Orientation of EL34 Tubes
  30. Load termination ?
  31. Advice on SE DHT for Lowther Fidelio DX2
  32. Dynacord MV46 as a compressor
  33. Biggest dual triode output tube?
  34. OPT impedance question
  35. Partridge SE O/P transformers
  36. SimpleSE and me
  37. SRPP decoupling cap vs. output transformer
  38. Differences between 6SN7GTA and 6SN7GTB?
  39. Radford STA-15 questions
  40. Balanced Input Hookup
  41. Need Tube Testing Settings for 3 tubes
  42. Need helping in Grounded Grid preamp using 6H6P 6H30P
  43. Regulated Lab DC power supply
  44. Fixed Bias 6BQ5?
  45. Heathkit AG7 Audio Geneator
  46. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  47. NEWBIE question SET vs. Solid State
  48. 6N6P cascode + 6AS7 Cathode follower
  49. Help me calculator OPT for 807, 6C4C tubes.
  50. Now I have caught the bug - next project
  51. 20W cathode follower amplifier
  52. Muting line level signals
  53. Anywhere in Hong Kong...
  54. RIAA / Pre mod/upgrade
  55. IT WORKS! Tube Phono Stage
  56. 2033 info sought
  57. Pentode Zeus
  58. 5987 (sc968b)
  59. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  60. JAN Sylvania 7308 vs. JAN Sylvania 6922
  61. recording amp
  62. A Tee-Vee T00b Amp
  63. metal tube lineup for a guitar amp
  64. Locating a bad resistor
  65. MiscEI
  66. ST70 iron recommendations please
  67. need help finding a link . . .
  68. Cathodyne Phase Inverter question
  69. Using a ignition coil for a audio transformer
  70. Multiple primary windings
  71. mcintosh mc3500 clone
  72. B+ Delay
  73. My attempt: 5 element Pentode Spice model
  74. Spelling, capitalization, and grammar.
  75. Power Supply
  76. Output Autotransformers
  77. Multi Section Cap....diy?
  78. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  79. Tube rectifier to Solid state Diodes exchange
  80. Hickok 533A help
  81. Custom Cards For B&K 675 Tester
  82. Peavey Heritage VTX - Bias Question
  83. EMC Model 200 Tube Tester Any Info Pls
  84. Guitar amp PT design questions
  85. Bada PH-1 simple box mod
  86. Tubes Rectifier Help?
  87. How to make sense of LTSpice FFT analysis?
  88. Cascode with local feedback
  89. amps
  90. how to preserve copper plates?
  91. Stereo EL34 amplifier
  92. SA 3000 Counterpoint
  93. tube amp transformer identification
  94. Beginner needs advices for 807 PP project
  95. Heater Power Supply Pspice model
  96. FWCT Rectification
  97. dc or not dc
  98. OTL for dummies.
  99. TCJ Cathode-Coupled Amplifier
  100. 845 Low voltage SE AMP
  101. Vacuum Tube Computer Simulation Modeling
  102. Getting a vintage amp to work
  103. Switched DC/DCconverter for B+
  104. What can I do with this?
  105. Super Pas Two
  106. pspice model of 811A
  107. Question on what is more important B+ or Plate Voltage
  108. Can I trust SPICE?
  109. Power supply filter mod
  110. Does antone interested xxx PCB groupbuy ?
  111. 1 signal ground or two?
  112. Peavey Heritage VTX - Schematics
  113. #47......
  114. Hammond 1650F
  115. 100 watt KT88/6550 Designs
  116. What glue to use for tube glass bulb + base
  117. Tube filaments (heaters) power supply
  118. Quick Ecl86/6gw8 Amp
  119. Need help on eq. hook up for new tube system
  120. Alternatives to the Dynaco ST-70
  121. I need some eq. hook up expert advice please!
  122. Please help identify which plug I need for this socket
  123. Svetlana KT88 winged C's failings
  124. PP amp using 6p15P
  125. Time for another round of "Criticise my Circuit"... err..I mean
  126. Adding a parallel feed on DRD
  127. How hot can resistor stands?
  128. Hybrid amplifier A2 class
  129. Diodes on power supply output for voltage drop?
  130. Converting from single ended parafeed to differential
  131. micro-amp SE with 2,5k OPT+
  132. Unknown Tube Amp
  133. Aikido AC Heater Supply
  134. Help me find some odd looking rectifiers!
  135. So, you may have been wondering...(813 Content !)
  136. Just sharing my 26 experience last night...
  137. Simple 5842-45 SET Amp Design Idea
  138. Yamamoto teflon sockets
  139. new thread, 6BM8 PP build begins...
  140. KT88 Heater Current
  141. 150V plate output tubes
  142. Newbie need to help
  143. Help me please
  144. Elekit TU-870 help
  145. Looking for schematic of Audible Illusion Modulus 3A preamp
  146. Junker Box amp
  147. aikido hybrid with 5 A bias
  148. Shall we compile a list?
  149. drift in direct coupled tubes
  150. Hammond 2XX vs 3XX Power Tranny Questions
  151. Help with this transformer please...
  152. Capacitor upgrade in Paragon 12A
  153. Light bulbs as cathode resistors?
  154. Favorite Threads and Posts in "Tubes" Forum
  155. I need 12v DC- whats the best option?
  156. Beard P35 and Tubes Replacement
  157. Graphic 1/3 Octave Tube Equaliser
  158. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  159. Power Supply Design
  160. Gomes amp
  161. pignose g40v power transformer
  162. Grid battery biased SE output stages
  163. KT88 amp schematic/parts list
  164. Wire Wrap connections for point to point
  165. Aikido Tubes
  166. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  167. Schematic Question
  168. EL34 as triode?
  169. Linestage Questions
  170. Help! Building Jax's HFTA
  171. Gobs of AC on ISCO 494
  172. Change step up ratio of input transformer?
  173. LCR RIAA rebuild
  174. common mode choke question
  175. Choosing Choke
  176. Input impedance
  177. Hey Tubelab, Transformer Question
  178. Hybrid Rectifier Check Please !
  179. 1st tube project, tubalizer?
  180. 1st Time project - Report 1
  181. ED-8000 set amp
  182. Hitachi v-202 scope
  183. Cheap and nice looking SE OPT
  184. How much difference 0.22 vs 0.33 cap?
  185. Tubelab SimpleSE
  186. 813 final design?
  187. HPHV regulator, designed by Emile Sprenger
  188. Counterpoint tube amps
  189. SS or tube voltage amplifying stages in an amp with tube output?
  190. 24V Aikido --> 6GM8 with Buffer
  191. Motorboating in Dynaco ST-70
  192. Does such a tube exist?
  193. Noisy PSU?
  194. Bell & Howell amp
  195. Valve Amp with soild state front end
  196. Controlling transient response
  197. Transcendar Budget SE Transformers
  198. Opinion on New Sensor 6SN7GTB?
  199. Determining optimal OT turns ratio
  200. Splitting up the Power Amp
  201. Sowter 5113
  202. Cascoded 6N6P
  203. MachMat or Tentlabs Heater Supply for 300B
  204. Common mode filtering for heater supplies.
  205. Distortion.
  206. 83 rectifier peak repetitive current?
  207. 813 Project has begun !
  208. C3G PX25 DRD - Will it work
  209. 6J5 (Metal Tubes) ....something goes around inside
  210. common-mode chokes
  211. EL-34 and 100k pot
  212. Scott 299 (late) OPT's
  213. Tube magazines
  214. PP plate-choke?
  215. More Phase Splitting Questions
  216. Concertina sanity check
  217. Transformer Specs
  218. The Aikido or Moskido??
  219. KT88 PP suggestion
  220. Ultrapath line amp
  221. Gross loudspeaker cone movement when using tube amps.
  222. Pre-amp power iron advice??
  223. Class A 8417 Amp
  224. DHT output tubes and DC heating
  225. rock music and SE?
  226. Disadvantages of using Zobel and Series notch filter ?
  227. old days source
  228. Mu-follower vs common cathode w/- active load
  229. K40 or K42 Russian PIO: what would you use/recommend?
  230. CCS turning off prematurely?
  231. ESL amp again!
  232. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  233. Does anyone know the output transformer specs of the...
  234. SE EL84 project for my friend
  235. SE amplifier - How much power?
  236. what speakers do you use?
  237. A Tube amp for a Hostille Tube Enviornment
  238. practical choice for an amp
  239. Simple cathode CCS
  240. 2A3s in push pull; class A
  241. 5 VDC heater question
  242. Power transformer snerring.
  243. Subminiature Tube & Tripath Hybrid Integrated
  244. 211
  245. Which of these output tubes?
  246. High Voltage Heater info
  247. 6SL7 in place of a 12AX7?
  248. DHT Tubes
  249. Driving 6AQ5's
  250. schematic wanted

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