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  1. Power supply for 12SL7 phono preamp
  2. few questions
  3. mystery 5881
  4. does lower B+ cause scratchy distortion?
  5. SY please keep us updated about your site
  6. Cleveland Ohio members?
  7. Scope tricks for detecting rectifier/choke switching
  8. To choke or not to choke
  9. Tube rectified LC PS for 6SN7 Aikido - choke DCR question
  10. Convergent Audio Technology (CAT) SL-1 preamplifier
  11. Very low current CCS?
  12. Morgan Jones' E88CC Phono
  13. pse help, unity triode as a phase inverter
  14. variable capacitor volume control
  15. What to do with P-P transformer ?
  16. 837 tube for SE Amplifier
  17. calculating transformer current draw question
  18. glass audio 1995 "Single Ended Glory"
  19. Manual for Heathkit AA-121 Power Amp
  20. Low gain triode recommendation plz
  21. Tubelab PP question
  22. Output transformer impedance question
  23. Choke... The side makes difference?
  24. Tubelab...Why "sandy" SE amps?
  25. Fostex Meets Pentode I need some NFB
  26. Oddball Sweep tubes in PP
  27. big doubt: dynakit st35 VS diytube st35clone
  28. Noob - where to start?
  29. Compactron Output Tubes
  30. XPP amp
  31. Tubelab SE ... which 5AR4 ?
  32. Getting only 400 hours on Class A2 PP tube
  33. Pete Millett's 829B amp -> monoblocks
  34. 6JU8A Spec confusion
  35. post on amp design by a newbie
  36. (INDIA) ECC802S/EL84 build, hardware requirements
  37. 6gw8 /ECL86 El Cheapo modifications
  38. Danielak's 300B design
  39. 6080 @ 800A Question ...
  40. Groundplane layout theory
  41. delay on for 83 mercury vapor
  42. Anyone tried "Weber Copper" SS rectifyers?
  43. Scored a bunch of tubes at HamCon
  44. AB2 Anyone else done similiar
  45. 6v6 pp amplifier
  46. Loud 60 cycle Hum from tube amp.
  47. Building a Preamp
  48. another Big One....:)
  49. JJ factory pictures ...
  50. Good enough CFs
  51. What's a good way to clean tubes w/o taking off the labeling?
  52. 6BX7 or 12B4A for small SE amp?
  53. Schematic collection posted by a kind soul...
  54. Dumb question, but...
  55. Zen Quad 22
  56. I'm baffled -- 6AK6 push-pull amp
  57. pin count question
  58. 1G3 Max Dissapation?
  59. Edcor Transformers
  60. 12EL6 preamp
  61. Request for EICO HF-20 experiences and ideas
  62. So would this work?
  63. Small-signal (or small power) pentode that can handle 400V (or more)?
  64. Are 6GM8's rare?
  65. How to lower mains voltage using resistors
  66. Music angel XD-SE EL34
  67. Potential project for some inherited transformers
  68. Car Tube Amp?
  69. Marantz 7 Preamp
  70. Euridice pramp but with 45
  71. Tubelab SE Parafeed Monoblocks (5 channel)
  72. Can 6AK6's take high voltages?
  73. Tube equal to one section of a 12AX7?
  74. HK 'Deuce front end on G2 drive output stage?
  75. Direct-coupled cathode/source follower driver in PP?
  76. CCS power supply loading..
  77. Photo Gallery -- Simple SE build
  78. Buying vintage good tubes
  79. current tube manufacturers and or brands
  80. PSU with TL783-question
  81. Hashimoto H-20-7U for 6v6 in triode SE..?
  82. Speakers impedance
  83. mesh plate el34 (supereTNT)
  84. Tagboard amps
  85. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  86. 6CL6 vs. 12BY7A
  87. Suggestions for a good tube line amp
  88. 12el6
  89. High Squareness Ratio of a Transformer
  90. What causes a tube to crack?
  91. Ming Da MC-7R transformers for Quad 22 clone.
  92. SimpleSE and Switches
  93. Bias and distortion 6EM7
  94. Need ideas - 6L6GA & 6X5GT
  95. tube microphone preamp design ideas
  96. Firestone Air Chief
  97. Zenith Console find, amp suggestions?
  98. 5842 russian equiv 6S45P or 6C45PI ?
  99. bizarre or good topology idea?
  100. 12 EL6 car preamp
  101. Waxy substance leaking from vintage OPT
  102. Output transformer protection fuses
  103. 5670 SRPP DC coupled to 6S4A
  104. L as last filter element?
  105. Strong cigarette smell in a tube amp
  106. Gas coupling?
  107. Differences between nos Tesla E88CC?
  108. Harmonic parrot food?
  109. Modified 6V6 amp, 350 volt @ 250 K HZ output
  110. best current production el34
  111. Help for correct grounding a Dared VP-845
  112. two 6AL5s as a bridge rectifier
  113. JFET Switching on my tube amp
  114. Leak / Dynaco DIY
  115. S-5 tube amp kits
  116. I wanna build a CHEAP mono tube amp, need advice....
  117. 12ax7
  118. Testing for tube shorts
  119. KT66 alternatives in Quad II amps?
  120. FOR TUBE: 350V High Voltage Regulator
  121. what guideline to match pre and amp?
  122. New to list and 300B amp kits
  123. Krank 100w head w/ only 14v output
  124. Primary impedance output transformer
  125. isolation transformer
  126. Cloning transformers
  127. EAR509
  128. Tubelab web site down, no more SimpleSE
  129. Schematics of potential interest
  130. super capacitor for dc heater
  131. Need a kit ??
  132. Edcor XSM10K/15K like intestage in tube SE ?
  133. Does anyone know of an LTSpice model for 12B4?
  134. where to order V-Cap ?
  135. Input Volume Pot
  136. Red Army Power-amp
  137. Cloning a HF-60
  138. Michaelson & Austin TVA-1 info
  139. analyze a circuit...quiescence current and R-Load
  140. how to calculate SE Coupling Cap Voltage ?
  141. Tubelab Simple SE Rectifier Problem?
  142. Mullard ECC88
  143. Engineering vs tube rolling
  144. Diode Peak working voltage ?
  145. Help wanted; combining topologies to "new" 807 PPP design ?
  146. Tubelab Simple SE with two Transformers - Centertaps?
  147. Hybrid Amp
  148. transformer information need help
  149. Replacing a cathode resistor with a CCS
  150. DC offset and relays
  151. Sourcing JJ 300B tubes
  152. Decware Vs Rogue Audio
  153. Global Feedback on Mikael's KT88SE
  154. Generating big voltage swings without 'iron'
  155. 6AS7G Grid Voltage ??
  156. Next project 6EM7
  157. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  158. What to replace these caps with?
  159. 5691 plate value ratings
  160. Bussiness trip to Singapore
  161. Paco mike tube amp
  162. Emergency help with Wes' amp
  163. 2A3 without cathode bypass cap???
  164. Best way to burn-in my new SE xfrmers on the bench?
  165. tubelabse pt wiring
  166. Need help with my ST70
  167. 6sn7 direct coupled and transformer coupled
  168. Hickok 605A Test 6DJ8
  169. Grounded Grid Preamp
  170. Beginner WLTM fixer of 300B hum...
  171. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  172. How to figure gain on split-load with positive feedback?
  173. Mikaels KT88SE & VTV Octal Linestage
  174. idiot needs help making sense of funny squigles - Filmosound
  175. Custom Transformer?
  176. How are this schematic ?
  177. Need help with a Tube preamp Kit (6Z4, 6N3)
  178. data sheets for 7239 and 8068
  179. John Swenson's New BDT preamp
  180. no coupling caps
  181. 6SN7GT brand
  182. tube voltage regulator error amp
  183. driving 845's
  184. Just ordered a Korg EMX-1
  185. Maida for Screen Supply
  186. cracked el34 -> replacement squeals
  187. SimpleSE goes Push Pull
  188. Possibly defective Mullard 12AT7?
  189. Basic measurement question re: shorts
  190. EL84 DC 10Y Project
  191. TubeCad Journal FET CCS
  192. russian tube
  193. Source for #81 light bulb for Hickok Fuse
  194. pchw 's tube hybrid amp accurian info
  195. 3c24 se amp
  196. schematic of firstsoundaudio pre amp
  197. 300b-98c mesh bias
  198. 6SN7 coin base tubes
  199. tube rectifiers and electrolytic reforming w/ variac
  200. I'm running my leak stereo 20 single ended. WHAT???
  201. Varnish on old transformer
  202. SE parallel output questions
  203. Darius Loftin White explained
  204. New Sensor's "Mullard" EL34 reissue?
  205. Best Way to Control Plate Voltage?
  206. Any Mods for a Noisy Leak Point one Stereo?
  207. tubes for 87db spendor
  208. 4v for rectifier tube
  209. Need help rebuilding old PA amplifier!
  210. inverted?
  211. Old Tube Radio - Restoration Project
  212. quick - need parts retailers Wash DC area
  213. H&K Tubeman Circuit Questions (added schematics!)
  214. Marshalls: Why did 600V B+ become 470V?
  215. Raising filament winding above cathode with a EZ81 in the circuit OK?
  216. Problem with Beard Audio
  217. 100K pot in a preamp?
  218. Power transformer for 6883B tube uses?
  219. EAGLE PCB help with socket on it
  220. Rca Mi-38188
  221. C- Battery Supply
  222. Seperating Preamp from Amp in Integrated Amps
  223. Please help me in getting rid of the buzz.
  224. Tube Phono stage dilema
  225. Grounding with single tap secondary...
  226. VTL - Manley stereo 75
  227. What about KT100 in SE ?
  228. Tube amplifier kit needed to drive low efficiency speaker
  229. feeling very pleased with myself
  230. Quicksilver Retube
  231. My Totem Arro 4 ohm load on KT-88 based amp
  232. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  233. for fans of the EL38 - the E3375
  234. 811a Opt
  235. Pure class-A or class AB?
  236. 12B4 PP Full Differential Amp Notion
  237. My opinion on Audio Note M10 schematic - Japan version
  238. B&K 650 tubecharts
  239. Help, I need your advice - What Next?
  240. Sloppy, Unreadable, Childlike schematics
  241. Anybody going to tomorrow's NVCF fair in Leamington?
  242. Pete's SE E-Linear
  243. 0A2 or 0D3 ?
  244. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  245. LTP feedback
  246. Need help with my super six...
  247. EL509 as a CF
  248. SE Diode
  249. 6FD7, 6BM8 or other
  250. My OLD Project....... cheap tube audio project!!!

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