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  1. SimpleSE and me
  2. SRPP decoupling cap vs. output transformer
  3. Differences between 6SN7GTA and 6SN7GTB?
  4. Radford STA-15 questions
  5. Balanced Input Hookup
  6. Need Tube Testing Settings for 3 tubes
  7. Need helping in Grounded Grid preamp using 6H6P 6H30P
  8. Regulated Lab DC power supply
  9. Fixed Bias 6BQ5?
  10. Heathkit AG7 Audio Geneator
  11. Music Angel vs Mr Liang L1-L3? And best speakers for £3k budget?
  12. NEWBIE question SET vs. Solid State
  13. 6N6P cascode + 6AS7 Cathode follower
  14. Help me calculator OPT for 807, 6C4C tubes.
  15. Now I have caught the bug - next project
  16. 20W cathode follower amplifier
  17. Muting line level signals
  18. Anywhere in Hong Kong...
  19. RIAA / Pre mod/upgrade
  20. IT WORKS! Tube Phono Stage
  21. 2033 info sought
  22. Pentode Zeus
  23. 5987 (sc968b)
  24. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  25. JAN Sylvania 7308 vs. JAN Sylvania 6922
  26. recording amp
  27. A Tee-Vee T00b Amp
  28. metal tube lineup for a guitar amp
  29. Locating a bad resistor
  30. MiscEI
  31. ST70 iron recommendations please
  32. need help finding a link . . .
  33. Cathodyne Phase Inverter question
  34. Using a ignition coil for a audio transformer
  35. Multiple primary windings
  36. mcintosh mc3500 clone
  37. B+ Delay
  38. My attempt: 5 element Pentode Spice model
  39. Spelling, capitalization, and grammar.
  40. Power Supply
  41. Output Autotransformers
  42. Multi Section Cap....diy?
  43. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  44. Tube rectifier to Solid state Diodes exchange
  45. Hickok 533A help
  46. Custom Cards For B&K 675 Tester
  47. Peavey Heritage VTX - Bias Question
  48. EMC Model 200 Tube Tester Any Info Pls
  49. Guitar amp PT design questions
  50. Bada PH-1 simple box mod
  51. Tubes Rectifier Help?
  52. How to make sense of LTSpice FFT analysis?
  53. Cascode with local feedback
  54. amps
  55. how to preserve copper plates?
  56. Stereo EL34 amplifier
  57. SA 3000 Counterpoint
  58. tube amp transformer identification
  59. Beginner needs advices for 807 PP project
  60. Heater Power Supply Pspice model
  61. FWCT Rectification
  62. dc or not dc
  63. OTL for dummies.
  64. TCJ Cathode-Coupled Amplifier
  65. 845 Low voltage SE AMP
  66. Vacuum Tube Computer Simulation Modeling
  67. Getting a vintage amp to work
  68. Switched DC/DCconverter for B+
  69. What can I do with this?
  70. Super Pas Two
  71. pspice model of 811A
  72. Question on what is more important B+ or Plate Voltage
  73. Can I trust SPICE?
  74. Power supply filter mod
  75. Does antone interested xxx PCB groupbuy ?
  76. 1 signal ground or two?
  77. Peavey Heritage VTX - Schematics
  78. #47......
  79. Hammond 1650F
  80. 100 watt KT88/6550 Designs
  81. What glue to use for tube glass bulb + base
  82. Tube filaments (heaters) power supply
  83. Quick Ecl86/6gw8 Amp
  84. Need help on eq. hook up for new tube system
  85. Alternatives to the Dynaco ST-70
  86. I need some eq. hook up expert advice please!
  87. Please help identify which plug I need for this socket
  88. Svetlana KT88 winged C's failings
  89. PP amp using 6p15P
  90. Time for another round of "Criticise my Circuit"... err..I mean
  91. Adding a parallel feed on DRD
  92. How hot can resistor stands?
  93. Hybrid amplifier A2 class
  94. Diodes on power supply output for voltage drop?
  95. Converting from single ended parafeed to differential
  96. micro-amp SE with 2,5k OPT+
  97. Unknown Tube Amp
  98. Aikido AC Heater Supply
  99. Help me find some odd looking rectifiers!
  100. So, you may have been wondering...(813 Content !)
  101. Just sharing my 26 experience last night...
  102. Simple 5842-45 SET Amp Design Idea
  103. Yamamoto teflon sockets
  104. new thread, 6BM8 PP build begins...
  105. KT88 Heater Current
  106. 150V plate output tubes
  107. Newbie need to help
  108. Help me please
  109. Elekit TU-870 help
  110. Looking for schematic of Audible Illusion Modulus 3A preamp
  111. Junker Box amp
  112. aikido hybrid with 5 A bias
  113. Shall we compile a list?
  114. drift in direct coupled tubes
  115. Hammond 2XX vs 3XX Power Tranny Questions
  116. Help with this transformer please...
  117. Capacitor upgrade in Paragon 12A
  118. Light bulbs as cathode resistors?
  119. Favorite Threads and Posts in "Tubes" Forum
  120. I need 12v DC- whats the best option?
  121. Beard P35 and Tubes Replacement
  122. Graphic 1/3 Octave Tube Equaliser
  123. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  124. Power Supply Design
  125. Gomes amp
  126. pignose g40v power transformer
  127. Grid battery biased SE output stages
  128. KT88 amp schematic/parts list
  129. Wire Wrap connections for point to point
  130. Aikido Tubes
  131. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  132. Schematic Question
  133. EL34 as triode?
  134. Linestage Questions
  135. Help! Building Jax's HFTA
  136. Gobs of AC on ISCO 494
  137. Change step up ratio of input transformer?
  138. LCR RIAA rebuild
  139. common mode choke question
  140. Choosing Choke
  141. Input impedance
  142. Hey Tubelab, Transformer Question
  143. Hybrid Rectifier Check Please !
  144. 1st tube project, tubalizer?
  145. 1st Time project - Report 1
  146. ED-8000 set amp
  147. Hitachi v-202 scope
  148. Cheap and nice looking SE OPT
  149. How much difference 0.22 vs 0.33 cap?
  150. Tubelab SimpleSE
  151. 813 final design?
  152. Counterpoint tube amps
  153. HPHV regulator, designed by Emile Sprenger
  154. SS or tube voltage amplifying stages in an amp with tube output?
  155. 24V Aikido --> 6GM8 with Buffer
  156. Motorboating in Dynaco ST-70
  157. Does such a tube exist?
  158. Noisy PSU?
  159. Bell & Howell amp
  160. Valve Amp with soild state front end
  161. Controlling transient response
  162. Transcendar Budget SE Transformers
  163. Opinion on New Sensor 6SN7GTB?
  164. Determining optimal OT turns ratio
  165. Splitting up the Power Amp
  166. Sowter 5113
  167. Cascoded 6N6P
  168. MachMat or Tentlabs Heater Supply for 300B
  169. Common mode filtering for heater supplies.
  170. Distortion.
  171. 83 rectifier peak repetitive current?
  172. 813 Project has begun !
  173. C3G PX25 DRD - Will it work
  174. 6J5 (Metal Tubes) ....something goes around inside
  175. common-mode chokes
  176. EL-34 and 100k pot
  177. Scott 299 (late) OPT's
  178. Tube magazines
  179. PP plate-choke?
  180. More Phase Splitting Questions
  181. Concertina sanity check
  182. Transformer Specs
  183. The Aikido or Moskido??
  184. KT88 PP suggestion
  185. Ultrapath line amp
  186. Gross loudspeaker cone movement when using tube amps.
  187. Pre-amp power iron advice??
  188. Class A 8417 Amp
  189. DHT output tubes and DC heating
  190. rock music and SE?
  191. Disadvantages of using Zobel and Series notch filter ?
  192. old days source
  193. Mu-follower vs common cathode w/- active load
  194. K40 or K42 Russian PIO: what would you use/recommend?
  195. CCS turning off prematurely?
  196. ESL amp again!
  197. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  198. Does anyone know the output transformer specs of the...
  199. SE EL84 project for my friend
  200. SE amplifier - How much power?
  201. what speakers do you use?
  202. A Tube amp for a Hostille Tube Enviornment
  203. practical choice for an amp
  204. Simple cathode CCS
  205. 2A3s in push pull; class A
  206. 5 VDC heater question
  207. Power transformer snerring.
  208. Subminiature Tube & Tripath Hybrid Integrated
  209. 211
  210. Which of these output tubes?
  211. High Voltage Heater info
  212. 6SL7 in place of a 12AX7?
  213. DHT Tubes
  214. Driving 6AQ5's
  215. schematic wanted
  216. 807s replacing 6L6GCs
  217. Shielded vs twisted pair in internal wiring
  218. tube basics: computing mu and transconductance
  219. Aluminium vs steel chassis
  220. Etf06 & 07
  221. FU 13 tubes
  222. Good Souinding Direct Replacement For 325 / OP 37
  223. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  224. The Russian 5U4M is a 5AR4 equivalent ?
  225. WE427A Cold Cathode Diode
  226. reversing polarity in regulated B+ and other question
  227. Anthem Integrated 1
  228. Hickok 800 settings
  229. Advice/Help - Cap upgrade
  230. Anyone tweaked a California Audio Labs Alpha DAC?
  231. question on old tube sockets
  232. fisher sa-16 very red tube and?
  233. pros/cons of a 845 VS 211
  234. Preamp Power and Voltage Output
  235. Anyone seen these 6L6GCs before?
  236. online transformer info for newbies
  237. High voltage pseudo-triode
  238. Yes, again: mains-powered KILLER amp without a power transformer.
  239. Quicksilver 300b monoblock (KT88 conversion)
  240. Output transformer (SE) - DIY
  241. is Gary Pimm still around?
  242. carbon composition - 2 types
  243. Input attenuation on Leak amp
  244. 101D Sockets
  245. PC86, '88 RF Amplifiers
  246. Jolida SJ-302A tube swap
  247. Inductance for tweeter OPT
  248. Help me.......What is the 6SN7 ???????
  249. high DCR secondary (power transformer)
  250. 6SL7 Tube rolling - my experience