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  1. 6v6 pp amplifier
  2. Loud 60 cycle Hum from tube amp.
  3. Building a Preamp
  4. another Big One....:)
  5. JJ factory pictures ...
  6. Good enough CFs
  7. What's a good way to clean tubes w/o taking off the labeling?
  8. 6BX7 or 12B4A for small SE amp?
  9. Schematic collection posted by a kind soul...
  10. Dumb question, but...
  11. Zen Quad 22
  12. I'm baffled -- 6AK6 push-pull amp
  13. pin count question
  14. 1G3 Max Dissapation?
  15. Edcor Transformers
  16. 12EL6 preamp
  17. Request for EICO HF-20 experiences and ideas
  18. So would this work?
  19. Small-signal (or small power) pentode that can handle 400V (or more)?
  20. Are 6GM8's rare?
  21. How to lower mains voltage using resistors
  22. Music angel XD-SE EL34
  23. Potential project for some inherited transformers
  24. Car Tube Amp?
  25. Marantz 7 Preamp
  26. Euridice pramp but with 45
  27. Tubelab SE Parafeed Monoblocks (5 channel)
  28. Can 6AK6's take high voltages?
  29. Tube equal to one section of a 12AX7?
  30. HK 'Deuce front end on G2 drive output stage?
  31. Direct-coupled cathode/source follower driver in PP?
  32. CCS power supply loading..
  33. Photo Gallery -- Simple SE build
  34. Buying vintage good tubes
  35. current tube manufacturers and or brands
  36. PSU with TL783-question
  37. Hashimoto H-20-7U for 6v6 in triode SE..?
  38. Speakers impedance
  39. mesh plate el34 (supereTNT)
  40. Tagboard amps
  41. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  42. 6CL6 vs. 12BY7A
  43. Suggestions for a good tube line amp
  44. 12el6
  45. High Squareness Ratio of a Transformer
  46. What causes a tube to crack?
  47. Ming Da MC-7R transformers for Quad 22 clone.
  48. SimpleSE and Switches
  49. Bias and distortion 6EM7
  50. Need ideas - 6L6GA & 6X5GT
  51. tube microphone preamp design ideas
  52. Firestone Air Chief
  53. Zenith Console find, amp suggestions?
  54. 5842 russian equiv 6S45P or 6C45PI ?
  55. bizarre or good topology idea?
  56. 12 EL6 car preamp
  57. Waxy substance leaking from vintage OPT
  58. Output transformer protection fuses
  59. 5670 SRPP DC coupled to 6S4A
  60. L as last filter element?
  61. Strong cigarette smell in a tube amp
  62. Gas coupling?
  63. Differences between nos Tesla E88CC?
  64. Harmonic parrot food?
  65. Modified 6V6 amp, 350 volt @ 250 K HZ output
  66. best current production el34
  67. Help for correct grounding a Dared VP-845
  68. two 6AL5s as a bridge rectifier
  69. JFET Switching on my tube amp
  70. Leak / Dynaco DIY
  71. S-5 tube amp kits
  72. I wanna build a CHEAP mono tube amp, need advice....
  73. 12ax7
  74. Testing for tube shorts
  75. KT66 alternatives in Quad II amps?
  76. FOR TUBE: 350V High Voltage Regulator
  77. what guideline to match pre and amp?
  78. New to list and 300B amp kits
  79. Krank 100w head w/ only 14v output
  80. Primary impedance output transformer
  81. isolation transformer
  82. Cloning transformers
  83. EAR509
  84. Tubelab web site down, no more SimpleSE
  85. Schematics of potential interest
  86. super capacitor for dc heater
  87. Need a kit ??
  88. Edcor XSM10K/15K like intestage in tube SE ?
  89. Does anyone know of an LTSpice model for 12B4?
  90. where to order V-Cap ?
  91. Input Volume Pot
  92. Red Army Power-amp
  93. Cloning a HF-60
  94. Michaelson & Austin TVA-1 info
  95. analyze a circuit...quiescence current and R-Load
  96. how to calculate SE Coupling Cap Voltage ?
  97. Tubelab Simple SE Rectifier Problem?
  98. Mullard ECC88
  99. Engineering vs tube rolling
  100. Diode Peak working voltage ?
  101. Help wanted; combining topologies to "new" 807 PPP design ?
  102. Tubelab Simple SE with two Transformers - Centertaps?
  103. Hybrid Amp
  104. transformer information need help
  105. Replacing a cathode resistor with a CCS
  106. DC offset and relays
  107. Sourcing JJ 300B tubes
  108. Decware Vs Rogue Audio
  109. Global Feedback on Mikael's KT88SE
  110. Generating big voltage swings without 'iron'
  111. 6AS7G Grid Voltage ??
  112. Next project 6EM7
  113. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  114. What to replace these caps with?
  115. 5691 plate value ratings
  116. Bussiness trip to Singapore
  117. Paco mike tube amp
  118. Emergency help with Wes' amp
  119. 2A3 without cathode bypass cap???
  120. Best way to burn-in my new SE xfrmers on the bench?
  121. tubelabse pt wiring
  122. Need help with my ST70
  123. 6sn7 direct coupled and transformer coupled
  124. Hickok 605A Test 6DJ8
  125. Grounded Grid Preamp
  126. Beginner WLTM fixer of 300B hum...
  127. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  128. How to figure gain on split-load with positive feedback?
  129. Mikaels KT88SE & VTV Octal Linestage
  130. idiot needs help making sense of funny squigles - Filmosound
  131. Custom Transformer?
  132. How are this schematic ?
  133. Need help with a Tube preamp Kit (6Z4, 6N3)
  134. data sheets for 7239 and 8068
  135. John Swenson's New BDT preamp
  136. no coupling caps
  137. 6SN7GT brand
  138. tube voltage regulator error amp
  139. driving 845's
  140. Just ordered a Korg EMX-1
  141. Maida for Screen Supply
  142. cracked el34 -> replacement squeals
  143. SimpleSE goes Push Pull
  144. Possibly defective Mullard 12AT7?
  145. Basic measurement question re: shorts
  146. EL84 DC 10Y Project
  147. TubeCad Journal FET CCS
  148. russian tube
  149. Source for #81 light bulb for Hickok Fuse
  150. pchw 's tube hybrid amp accurian info
  151. 3c24 se amp
  152. schematic of firstsoundaudio pre amp
  153. 300b-98c mesh bias
  154. 6SN7 coin base tubes
  155. tube rectifiers and electrolytic reforming w/ variac
  156. I'm running my leak stereo 20 single ended. WHAT???
  157. Varnish on old transformer
  158. SE parallel output questions
  159. Darius Loftin White explained
  160. New Sensor's "Mullard" EL34 reissue?
  161. Best Way to Control Plate Voltage?
  162. Any Mods for a Noisy Leak Point one Stereo?
  163. tubes for 87db spendor
  164. 4v for rectifier tube
  165. Need help rebuilding old PA amplifier!
  166. inverted?
  167. Old Tube Radio - Restoration Project
  168. quick - need parts retailers Wash DC area
  169. H&K Tubeman Circuit Questions (added schematics!)
  170. Marshalls: Why did 600V B+ become 470V?
  171. Raising filament winding above cathode with a EZ81 in the circuit OK?
  172. Problem with Beard Audio
  173. 100K pot in a preamp?
  174. Power transformer for 6883B tube uses?
  175. EAGLE PCB help with socket on it
  176. Rca Mi-38188
  177. C- Battery Supply
  178. Seperating Preamp from Amp in Integrated Amps
  179. Please help me in getting rid of the buzz.
  180. Tube Phono stage dilema
  181. Grounding with single tap secondary...
  182. VTL - Manley stereo 75
  183. What about KT100 in SE ?
  184. Tube amplifier kit needed to drive low efficiency speaker
  185. feeling very pleased with myself
  186. Quicksilver Retube
  187. My Totem Arro 4 ohm load on KT-88 based amp
  188. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  189. for fans of the EL38 - the E3375
  190. 811a Opt
  191. Pure class-A or class AB?
  192. 12B4 PP Full Differential Amp Notion
  193. My opinion on Audio Note M10 schematic - Japan version
  194. B&K 650 tubecharts
  195. Help, I need your advice - What Next?
  196. Sloppy, Unreadable, Childlike schematics
  197. Anybody going to tomorrow's NVCF fair in Leamington?
  198. Pete's SE E-Linear
  199. 0A2 or 0D3 ?
  200. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  201. LTP feedback
  202. Need help with my super six...
  203. EL509 as a CF
  204. SE Diode
  205. 6FD7, 6BM8 or other
  206. My OLD Project....... cheap tube audio project!!!
  207. tube noise
  208. Fisher 400 questions
  209. RL12P35 amplifier
  210. 6AS7 ppp
  211. 6j5 dc coupled to 12b4a as 2a3 driver
  212. '81 Twin problems
  213. The sound of different EL34īs.
  214. Output transformer and FB
  215. Triode curves for 6AU5
  216. 26/el-84 amp possible..?
  217. Vaic 52B monos
  218. Hour Meter for a Tube Amp..
  219. volume pot replacement
  220. Ampex 600
  221. Tubing Testing...how are these numbers?
  222. No-R No-C Power Supply
  223. Are my Speakers efficient enough for my Amp?
  224. doesn't sound quite right
  225. 6DJ8 alternates?
  226. Is this the dumbest question?
  227. Fuse between B+ and output transformer?
  228. Telefunken Double Label Error...Ever seen this?
  229. 300B Summer Build Question
  230. 1,25kW tube amplifier/modulator
  231. 12sn7 heater-cathode voltage
  232. Toroidal output transformers with screen drive- why not?
  233. Help With 6v6 Spice Model
  234. Different 5AR4's have different voltages and warm up time.
  235. Edcor OPT in S5 Electronics K-16LS kit?
  236. SRPP Powersupply, replace R with choke ?
  237. First tube amp
  238. Best low-signal direct heated triodes?
  239. 25-position switched attenuator using a pair of 5-position switches?
  240. Help with dead Jadis Defy7 Amp
  241. Bring test points to chassis - Tubelab
  242. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  243. Remote control for integrated tube amp
  244. EL34 pp "fixed" bias is wandering
  245. US sources Russian Surplus
  246. 6550 SE class project (continued)
  247. Convert RCA tuner/pre to high perf AM only
  248. Metal Can 6CA7s
  249. Bypassing B+ in PP amp
  250. Tube shunt regulator for phono amp

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