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  1. Convergent Audio Technology (CAT) SL-1 preamplifier
  2. Very low current CCS?
  3. Morgan Jones' E88CC Phono
  4. pse help, unity triode as a phase inverter
  5. variable capacitor volume control
  6. What to do with P-P transformer ?
  7. 837 tube for SE Amplifier
  8. calculating transformer current draw question
  9. glass audio 1995 "Single Ended Glory"
  10. Manual for Heathkit AA-121 Power Amp
  11. Low gain triode recommendation plz
  12. Tubelab PP question
  13. Output transformer impedance question
  14. Choke... The side makes difference?
  15. Tubelab...Why "sandy" SE amps?
  16. Fostex Meets Pentode I need some NFB
  17. Oddball Sweep tubes in PP
  18. big doubt: dynakit st35 VS diytube st35clone
  19. Noob - where to start?
  20. Compactron Output Tubes
  21. XPP amp
  22. Tubelab SE ... which 5AR4 ?
  23. Getting only 400 hours on Class A2 PP tube
  24. Pete Millett's 829B amp -> monoblocks
  25. 6JU8A Spec confusion
  26. post on amp design by a newbie
  27. (INDIA) ECC802S/EL84 build, hardware requirements
  28. 6gw8 /ECL86 El Cheapo modifications
  29. Danielak's 300B design
  30. 6080 @ 800A Question ...
  31. Groundplane layout theory
  32. delay on for 83 mercury vapor
  33. Anyone tried "Weber Copper" SS rectifyers?
  34. Scored a bunch of tubes at HamCon
  35. AB2 Anyone else done similiar
  36. 6v6 pp amplifier
  37. Loud 60 cycle Hum from tube amp.
  38. Building a Preamp
  39. another Big One....:)
  40. JJ factory pictures ...
  41. Good enough CFs
  42. What's a good way to clean tubes w/o taking off the labeling?
  43. 6BX7 or 12B4A for small SE amp?
  44. Schematic collection posted by a kind soul...
  45. Dumb question, but...
  46. Zen Quad 22
  47. I'm baffled -- 6AK6 push-pull amp
  48. pin count question
  49. 1G3 Max Dissapation?
  50. Edcor Transformers
  51. 12EL6 preamp
  52. Request for EICO HF-20 experiences and ideas
  53. So would this work?
  54. Small-signal (or small power) pentode that can handle 400V (or more)?
  55. Are 6GM8's rare?
  56. How to lower mains voltage using resistors
  57. Music angel XD-SE EL34
  58. Potential project for some inherited transformers
  59. Car Tube Amp?
  60. Marantz 7 Preamp
  61. Euridice pramp but with 45
  62. Tubelab SE Parafeed Monoblocks (5 channel)
  63. Can 6AK6's take high voltages?
  64. Tube equal to one section of a 12AX7?
  65. HK 'Deuce front end on G2 drive output stage?
  66. Direct-coupled cathode/source follower driver in PP?
  67. CCS power supply loading..
  68. Photo Gallery -- Simple SE build
  69. Buying vintage good tubes
  70. current tube manufacturers and or brands
  71. PSU with TL783-question
  72. Hashimoto H-20-7U for 6v6 in triode SE..?
  73. Speakers impedance
  74. mesh plate el34 (supereTNT)
  75. Tagboard amps
  76. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  77. 6CL6 vs. 12BY7A
  78. Suggestions for a good tube line amp
  79. 12el6
  80. High Squareness Ratio of a Transformer
  81. What causes a tube to crack?
  82. Ming Da MC-7R transformers for Quad 22 clone.
  83. SimpleSE and Switches
  84. Bias and distortion 6EM7
  85. Need ideas - 6L6GA & 6X5GT
  86. tube microphone preamp design ideas
  87. Firestone Air Chief
  88. Zenith Console find, amp suggestions?
  89. 5842 russian equiv 6S45P or 6C45PI ?
  90. bizarre or good topology idea?
  91. 12 EL6 car preamp
  92. Waxy substance leaking from vintage OPT
  93. Output transformer protection fuses
  94. 5670 SRPP DC coupled to 6S4A
  95. L as last filter element?
  96. Strong cigarette smell in a tube amp
  97. Gas coupling?
  98. Differences between nos Tesla E88CC?
  99. Harmonic parrot food?
  100. Modified 6V6 amp, 350 volt @ 250 K HZ output
  101. best current production el34
  102. Help for correct grounding a Dared VP-845
  103. two 6AL5s as a bridge rectifier
  104. JFET Switching on my tube amp
  105. Leak / Dynaco DIY
  106. S-5 tube amp kits
  107. I wanna build a CHEAP mono tube amp, need advice....
  108. 12ax7
  109. Testing for tube shorts
  110. KT66 alternatives in Quad II amps?
  111. FOR TUBE: 350V High Voltage Regulator
  112. what guideline to match pre and amp?
  113. New to list and 300B amp kits
  114. Krank 100w head w/ only 14v output
  115. Primary impedance output transformer
  116. isolation transformer
  117. Cloning transformers
  118. EAR509
  119. Tubelab web site down, no more SimpleSE
  120. Schematics of potential interest
  121. super capacitor for dc heater
  122. Need a kit ??
  123. Edcor XSM10K/15K like intestage in tube SE ?
  124. Does anyone know of an LTSpice model for 12B4?
  125. where to order V-Cap ?
  126. Input Volume Pot
  127. Red Army Power-amp
  128. Cloning a HF-60
  129. Michaelson & Austin TVA-1 info
  130. analyze a circuit...quiescence current and R-Load
  131. how to calculate SE Coupling Cap Voltage ?
  132. Tubelab Simple SE Rectifier Problem?
  133. Mullard ECC88
  134. Engineering vs tube rolling
  135. Diode Peak working voltage ?
  136. Help wanted; combining topologies to "new" 807 PPP design ?
  137. Tubelab Simple SE with two Transformers - Centertaps?
  138. Hybrid Amp
  139. transformer information need help
  140. Replacing a cathode resistor with a CCS
  141. DC offset and relays
  142. Sourcing JJ 300B tubes
  143. Decware Vs Rogue Audio
  144. Global Feedback on Mikael's KT88SE
  145. Generating big voltage swings without 'iron'
  146. 6AS7G Grid Voltage ??
  147. Next project 6EM7
  148. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  149. What to replace these caps with?
  150. 5691 plate value ratings
  151. Bussiness trip to Singapore
  152. Paco mike tube amp
  153. Emergency help with Wes' amp
  154. 2A3 without cathode bypass cap???
  155. Best way to burn-in my new SE xfrmers on the bench?
  156. tubelabse pt wiring
  157. Need help with my ST70
  158. 6sn7 direct coupled and transformer coupled
  159. Hickok 605A Test 6DJ8
  160. Grounded Grid Preamp
  161. Beginner WLTM fixer of 300B hum...
  162. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  163. How to figure gain on split-load with positive feedback?
  164. Mikaels KT88SE & VTV Octal Linestage
  165. idiot needs help making sense of funny squigles - Filmosound
  166. Custom Transformer?
  167. How are this schematic ?
  168. Need help with a Tube preamp Kit (6Z4, 6N3)
  169. data sheets for 7239 and 8068
  170. John Swenson's New BDT preamp
  171. no coupling caps
  172. 6SN7GT brand
  173. tube voltage regulator error amp
  174. driving 845's
  175. Just ordered a Korg EMX-1
  176. Maida for Screen Supply
  177. cracked el34 -> replacement squeals
  178. SimpleSE goes Push Pull
  179. Possibly defective Mullard 12AT7?
  180. Basic measurement question re: shorts
  181. EL84 DC 10Y Project
  182. TubeCad Journal FET CCS
  183. russian tube
  184. Source for #81 light bulb for Hickok Fuse
  185. pchw 's tube hybrid amp accurian info
  186. 3c24 se amp
  187. schematic of firstsoundaudio pre amp
  188. 300b-98c mesh bias
  189. 6SN7 coin base tubes
  190. tube rectifiers and electrolytic reforming w/ variac
  191. I'm running my leak stereo 20 single ended. WHAT???
  192. Varnish on old transformer
  193. SE parallel output questions
  194. Darius Loftin White explained
  195. New Sensor's "Mullard" EL34 reissue?
  196. Best Way to Control Plate Voltage?
  197. Any Mods for a Noisy Leak Point one Stereo?
  198. tubes for 87db spendor
  199. 4v for rectifier tube
  200. Need help rebuilding old PA amplifier!
  201. inverted?
  202. Old Tube Radio - Restoration Project
  203. quick - need parts retailers Wash DC area
  204. H&K Tubeman Circuit Questions (added schematics!)
  205. Marshalls: Why did 600V B+ become 470V?
  206. Raising filament winding above cathode with a EZ81 in the circuit OK?
  207. Problem with Beard Audio
  208. 100K pot in a preamp?
  209. Power transformer for 6883B tube uses?
  210. EAGLE PCB help with socket on it
  211. Rca Mi-38188
  212. C- Battery Supply
  213. Seperating Preamp from Amp in Integrated Amps
  214. Please help me in getting rid of the buzz.
  215. Tube Phono stage dilema
  216. Grounding with single tap secondary...
  217. VTL - Manley stereo 75
  218. What about KT100 in SE ?
  219. Tube amplifier kit needed to drive low efficiency speaker
  220. feeling very pleased with myself
  221. Quicksilver Retube
  222. My Totem Arro 4 ohm load on KT-88 based amp
  223. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  224. for fans of the EL38 - the E3375
  225. 811a Opt
  226. Pure class-A or class AB?
  227. 12B4 PP Full Differential Amp Notion
  228. My opinion on Audio Note M10 schematic - Japan version
  229. B&K 650 tubecharts
  230. Help, I need your advice - What Next?
  231. Sloppy, Unreadable, Childlike schematics
  232. Anybody going to tomorrow's NVCF fair in Leamington?
  233. Pete's SE E-Linear
  234. 0A2 or 0D3 ?
  235. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  236. LTP feedback
  237. Need help with my super six...
  238. EL509 as a CF
  239. SE Diode
  240. 6FD7, 6BM8 or other
  241. My OLD Project....... cheap tube audio project!!!
  242. tube noise
  243. Fisher 400 questions
  244. RL12P35 amplifier
  245. 6AS7 ppp
  246. 6j5 dc coupled to 12b4a as 2a3 driver
  247. '81 Twin problems
  248. The sound of different EL34s.
  249. Output transformer and FB
  250. Triode curves for 6AU5

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