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  1. mesh plate el34 (supereTNT)
  2. Tagboard amps
  3. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  4. 6CL6 vs. 12BY7A
  5. Suggestions for a good tube line amp
  6. 12el6
  7. High Squareness Ratio of a Transformer
  8. What causes a tube to crack?
  9. Ming Da MC-7R transformers for Quad 22 clone.
  10. SimpleSE and Switches
  11. Bias and distortion 6EM7
  12. Need ideas - 6L6GA & 6X5GT
  13. tube microphone preamp design ideas
  14. Firestone Air Chief
  15. Zenith Console find, amp suggestions?
  16. 5842 russian equiv 6S45P or 6C45PI ?
  17. bizarre or good topology idea?
  18. 12 EL6 car preamp
  19. Waxy substance leaking from vintage OPT
  20. Output transformer protection fuses
  21. 5670 SRPP DC coupled to 6S4A
  22. L as last filter element?
  23. Strong cigarette smell in a tube amp
  24. Gas coupling?
  25. Differences between nos Tesla E88CC?
  26. Harmonic parrot food?
  27. Modified 6V6 amp, 350 volt @ 250 K HZ output
  28. best current production el34
  29. Help for correct grounding a Dared VP-845
  30. two 6AL5s as a bridge rectifier
  31. JFET Switching on my tube amp
  32. Leak / Dynaco DIY
  33. S-5 tube amp kits
  34. I wanna build a CHEAP mono tube amp, need advice....
  35. 12ax7
  36. Testing for tube shorts
  37. KT66 alternatives in Quad II amps?
  38. FOR TUBE: 350V High Voltage Regulator
  39. what guideline to match pre and amp?
  40. New to list and 300B amp kits
  41. Krank 100w head w/ only 14v output
  42. Primary impedance output transformer
  43. isolation transformer
  44. Cloning transformers
  45. EAR509
  46. Tubelab web site down, no more SimpleSE
  47. Schematics of potential interest
  48. super capacitor for dc heater
  49. Need a kit ??
  50. Edcor XSM10K/15K like intestage in tube SE ?
  51. Does anyone know of an LTSpice model for 12B4?
  52. where to order V-Cap ?
  53. Input Volume Pot
  54. Red Army Power-amp
  55. Cloning a HF-60
  56. Michaelson & Austin TVA-1 info
  57. analyze a circuit...quiescence current and R-Load
  58. how to calculate SE Coupling Cap Voltage ?
  59. Tubelab Simple SE Rectifier Problem?
  60. Mullard ECC88
  61. Engineering vs tube rolling
  62. Diode Peak working voltage ?
  63. Help wanted; combining topologies to "new" 807 PPP design ?
  64. Tubelab Simple SE with two Transformers - Centertaps?
  65. Hybrid Amp
  66. transformer information need help
  67. Replacing a cathode resistor with a CCS
  68. DC offset and relays
  69. Sourcing JJ 300B tubes
  70. Decware Vs Rogue Audio
  71. Global Feedback on Mikael's KT88SE
  72. Generating big voltage swings without 'iron'
  73. 6AS7G Grid Voltage ??
  74. Next project 6EM7
  75. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  76. What to replace these caps with?
  77. 5691 plate value ratings
  78. Bussiness trip to Singapore
  79. Paco mike tube amp
  80. Emergency help with Wes' amp
  81. 2A3 without cathode bypass cap???
  82. Best way to burn-in my new SE xfrmers on the bench?
  83. tubelabse pt wiring
  84. Need help with my ST70
  85. 6sn7 direct coupled and transformer coupled
  86. Hickok 605A Test 6DJ8
  87. Grounded Grid Preamp
  88. Beginner WLTM fixer of 300B hum...
  89. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  90. How to figure gain on split-load with positive feedback?
  91. Mikaels KT88SE & VTV Octal Linestage
  92. idiot needs help making sense of funny squigles - Filmosound
  93. Custom Transformer?
  94. How are this schematic ?
  95. Need help with a Tube preamp Kit (6Z4, 6N3)
  96. data sheets for 7239 and 8068
  97. John Swenson's New BDT preamp
  98. no coupling caps
  99. 6SN7GT brand
  100. tube voltage regulator error amp
  101. driving 845's
  102. Just ordered a Korg EMX-1
  103. Maida for Screen Supply
  104. cracked el34 -> replacement squeals
  105. SimpleSE goes Push Pull
  106. Possibly defective Mullard 12AT7?
  107. Basic measurement question re: shorts
  108. EL84 DC 10Y Project
  109. TubeCad Journal FET CCS
  110. russian tube
  111. Source for #81 light bulb for Hickok Fuse
  112. pchw 's tube hybrid amp accurian info
  113. 3c24 se amp
  114. schematic of firstsoundaudio pre amp
  115. 300b-98c mesh bias
  116. 6SN7 coin base tubes
  117. tube rectifiers and electrolytic reforming w/ variac
  118. I'm running my leak stereo 20 single ended. WHAT???
  119. Varnish on old transformer
  120. SE parallel output questions
  121. Darius Loftin White explained
  122. New Sensor's "Mullard" EL34 reissue?
  123. Best Way to Control Plate Voltage?
  124. Any Mods for a Noisy Leak Point one Stereo?
  125. tubes for 87db spendor
  126. 4v for rectifier tube
  127. Need help rebuilding old PA amplifier!
  128. inverted?
  129. Old Tube Radio - Restoration Project
  130. quick - need parts retailers Wash DC area
  131. H&K Tubeman Circuit Questions (added schematics!)
  132. Marshalls: Why did 600V B+ become 470V?
  133. Raising filament winding above cathode with a EZ81 in the circuit OK?
  134. Problem with Beard Audio
  135. 100K pot in a preamp?
  136. Power transformer for 6883B tube uses?
  137. EAGLE PCB help with socket on it
  138. Rca Mi-38188
  139. C- Battery Supply
  140. Seperating Preamp from Amp in Integrated Amps
  141. Please help me in getting rid of the buzz.
  142. Tube Phono stage dilema
  143. Grounding with single tap secondary...
  144. VTL - Manley stereo 75
  145. What about KT100 in SE ?
  146. Tube amplifier kit needed to drive low efficiency speaker
  147. feeling very pleased with myself
  148. Quicksilver Retube
  149. My Totem Arro 4 ohm load on KT-88 based amp
  150. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  151. for fans of the EL38 - the E3375
  152. 811a Opt
  153. Pure class-A or class AB?
  154. 12B4 PP Full Differential Amp Notion
  155. My opinion on Audio Note M10 schematic - Japan version
  156. B&K 650 tubecharts
  157. Help, I need your advice - What Next?
  158. Sloppy, Unreadable, Childlike schematics
  159. Anybody going to tomorrow's NVCF fair in Leamington?
  160. Pete's SE E-Linear
  161. 0A2 or 0D3 ?
  162. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  163. LTP feedback
  164. Need help with my super six...
  165. EL509 as a CF
  166. SE Diode
  167. 6FD7, 6BM8 or other
  168. My OLD Project....... cheap tube audio project!!!
  169. tube noise
  170. Fisher 400 questions
  171. RL12P35 amplifier
  172. 6AS7 ppp
  173. 6j5 dc coupled to 12b4a as 2a3 driver
  174. '81 Twin problems
  175. The sound of different EL34īs.
  176. Output transformer and FB
  177. Triode curves for 6AU5
  178. 26/el-84 amp possible..?
  179. Vaic 52B monos
  180. Hour Meter for a Tube Amp..
  181. volume pot replacement
  182. Ampex 600
  183. Tubing Testing...how are these numbers?
  184. No-R No-C Power Supply
  185. Are my Speakers efficient enough for my Amp?
  186. doesn't sound quite right
  187. 6DJ8 alternates?
  188. Is this the dumbest question?
  189. Fuse between B+ and output transformer?
  190. Telefunken Double Label Error...Ever seen this?
  191. 300B Summer Build Question
  192. 1,25kW tube amplifier/modulator
  193. 12sn7 heater-cathode voltage
  194. Toroidal output transformers with screen drive- why not?
  195. Help With 6v6 Spice Model
  196. Different 5AR4's have different voltages and warm up time.
  197. Edcor OPT in S5 Electronics K-16LS kit?
  198. SRPP Powersupply, replace R with choke ?
  199. First tube amp
  200. Best low-signal direct heated triodes?
  201. 25-position switched attenuator using a pair of 5-position switches?
  202. Help with dead Jadis Defy7 Amp
  203. Bring test points to chassis - Tubelab
  204. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  205. Remote control for integrated tube amp
  206. EL34 pp "fixed" bias is wandering
  207. US sources Russian Surplus
  208. 6550 SE class project (continued)
  209. Convert RCA tuner/pre to high perf AM only
  210. Metal Can 6CA7s
  211. Bypassing B+ in PP amp
  212. Tube shunt regulator for phono amp
  213. Triplett tube tester help
  214. speaker that can be driven by tube amp
  215. Which perf board?
  216. Looking for schematic/info for a Knight KN 3050 PA Amp
  217. Need help with volume control.
  218. Flame triodes!
  219. make OPT
  220. Tube GU50 made in Russia
  221. Expectations of new tube specs
  222. DC on preamp input
  223. We're up and going!
  224. Putting serial number on tubes
  225. Which of these tubes is best?
  226. Stepped attenuator resistor calculation software
  227. Help with PSU for tube DAC output stage
  228. single-tube (6GN8) amplifier?
  229. Dukane schematic needed
  230. Bloody pinouts!
  231. Testing 5651WA on the bench
  232. phase splitter concerns ?
  233. phono pre RIAA 2001
  234. Quick output transformer wiring question
  235. Can I.....
  236. Cathode FB P.P. Strange behaviour.
  237. Historic Valve Assembly Vids Mullard Content
  238. Unknown output impedance
  239. Any matching in 12AT7 sections? (SimpleSE)
  240. Over-voltage on heaters...
  241. Stray capacitance of CCS
  242. CCS Design for DHT Filaments
  243. coupling cap value help for tubelabSE
  244. YAQIN MC-10L to Klipsch B-3 Speakers
  245. Sonic effects of tubes
  246. Gubin Valve Stereo Amplifier Question
  247. 6J5 Shootout - which one's best?
  248. Chinese Tube Amps?
  249. 26 DHT users please comment on what you built & use.
  250. auricap Vs musicap (Another Cap Question)

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