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  1. Low gain triode recommendation plz
  2. Tubelab PP question
  3. Output transformer impedance question
  4. Choke... The side makes difference?
  5. Tubelab...Why "sandy" SE amps?
  6. Fostex Meets Pentode I need some NFB
  7. Oddball Sweep tubes in PP
  8. Noob - where to start?
  9. big doubt: dynakit st35 VS diytube st35clone
  10. Compactron Output Tubes
  11. XPP amp
  12. Tubelab SE ... which 5AR4 ?
  13. Getting only 400 hours on Class A2 PP tube
  14. Pete Millett's 829B amp -> monoblocks
  15. 6JU8A Spec confusion
  16. post on amp design by a newbie
  17. (INDIA) ECC802S/EL84 build, hardware requirements
  18. 6gw8 /ECL86 El Cheapo modifications
  19. Danielak's 300B design
  20. 6080 @ 800A Question ...
  21. Groundplane layout theory
  22. delay on for 83 mercury vapor
  23. Anyone tried "Weber Copper" SS rectifyers?
  24. Scored a bunch of tubes at HamCon
  25. AB2 Anyone else done similiar
  26. 6v6 pp amplifier
  27. Loud 60 cycle Hum from tube amp.
  28. Building a Preamp
  29. another Big One....:)
  30. JJ factory pictures ...
  31. Good enough CFs
  32. What's a good way to clean tubes w/o taking off the labeling?
  33. 6BX7 or 12B4A for small SE amp?
  34. Schematic collection posted by a kind soul...
  35. Dumb question, but...
  36. Zen Quad 22
  37. I'm baffled -- 6AK6 push-pull amp
  38. pin count question
  39. 1G3 Max Dissapation?
  40. Edcor Transformers
  41. 12EL6 preamp
  42. Request for EICO HF-20 experiences and ideas
  43. So would this work?
  44. A valve pre amp for my disco and electric guitar.
  45. Small-signal (or small power) pentode that can handle 400V (or more)?
  46. Are 6GM8's rare?
  47. How to lower mains voltage using resistors
  48. Music angel XD-SE EL34
  49. Potential project for some inherited transformers
  50. Car Tube Amp?
  51. Marantz 7 Preamp
  52. Euridice pramp but with 45
  53. Tubelab SE Parafeed Monoblocks (5 channel)
  54. Can 6AK6's take high voltages?
  55. Tube equal to one section of a 12AX7?
  56. HK 'Deuce front end on G2 drive output stage?
  57. Direct-coupled cathode/source follower driver in PP?
  58. CCS power supply loading..
  59. Photo Gallery -- Simple SE build
  60. Buying vintage good tubes
  61. current tube manufacturers and or brands
  62. PSU with TL783-question
  63. Hashimoto H-20-7U for 6v6 in triode SE..?
  64. Speakers impedance
  65. mesh plate el34 (supereTNT)
  66. Tagboard amps
  67. 807 single ended guitar amp
  68. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  69. 6CL6 vs. 12BY7A
  70. Suggestions for a good tube line amp
  71. 12el6
  72. High Squareness Ratio of a Transformer
  73. What causes a tube to crack?
  74. My 66 Fender bassman tube guitar amp is cutting out intermittently and is making a bl
  75. Ming Da MC-7R transformers for Quad 22 clone.
  76. SimpleSE and Switches
  77. Bias and distortion 6EM7
  78. Need ideas - 6L6GA & 6X5GT
  79. tube microphone preamp design ideas
  80. Firestone Air Chief
  81. Zenith Console find, amp suggestions?
  82. 5842 russian equiv 6S45P or 6C45PI ?
  83. bizarre or good topology idea?
  84. 12 EL6 car preamp
  85. Waxy substance leaking from vintage OPT
  86. Output transformer protection fuses
  87. 5670 SRPP DC coupled to 6S4A
  88. L as last filter element?
  89. Strong cigarette smell in a tube amp
  90. Gas coupling?
  91. Differences between nos Tesla E88CC?
  92. Harmonic parrot food?
  93. Modified 6V6 amp, 350 volt @ 250 K HZ output
  94. best current production el34
  95. Help for correct grounding a Dared VP-845
  96. two 6AL5s as a bridge rectifier
  97. JFET Switching on my tube amp
  98. Leak / Dynaco DIY
  99. S-5 tube amp kits
  100. I wanna build a CHEAP mono tube amp, need advice....
  101. 12ax7
  102. Testing for tube shorts
  103. KT66 alternatives in Quad II amps?
  104. FOR TUBE: 350V High Voltage Regulator
  105. what guideline to match pre and amp?
  106. New to list and 300B amp kits
  107. Krank 100w head w/ only 14v output
  108. Silvertone 1448 Output Transformer?
  109. Primary impedance output transformer
  110. isolation transformer
  111. Cloning transformers
  112. EAR509
  113. EL84 for Ipod and guitar
  114. Tubelab web site down, no more SimpleSE
  115. Schematics of potential interest
  116. super capacitor for dc heater
  117. Need a kit ??
  118. Edcor XSM10K/15K like intestage in tube SE ?
  119. Does anyone know of an LTSpice model for 12B4?
  120. where to order V-Cap ?
  121. Input Volume Pot
  122. Red Army Power-amp
  123. Cloning a HF-60
  124. Michaelson & Austin TVA-1 info
  125. analyze a circuit...quiescence current and R-Load
  126. how to calculate SE Coupling Cap Voltage ?
  127. Tubelab Simple SE Rectifier Problem?
  128. Mullard ECC88
  129. Engineering vs tube rolling
  130. Diode Peak working voltage ?
  131. Help wanted; combining topologies to "new" 807 PPP design ?
  132. Tubelab Simple SE with two Transformers - Centertaps?
  133. Hybrid Amp
  134. transformer information need help
  135. Replacing a cathode resistor with a CCS
  136. DC offset and relays
  137. Sourcing JJ 300B tubes
  138. EICO HF-12 Iron - Use in Guitar Amp?
  139. Decware Vs Rogue Audio
  140. Global Feedback on Mikael's KT88SE
  141. Generating big voltage swings without 'iron'
  142. 6AS7G Grid Voltage ??
  143. Next project 6EM7
  144. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  145. What to replace these caps with?
  146. 5691 plate value ratings
  147. Bussiness trip to Singapore
  148. Paco mike tube amp
  149. Emergency help with Wes' amp
  150. 2A3 without cathode bypass cap???
  151. Best way to burn-in my new SE xfrmers on the bench?
  152. tubelabse pt wiring
  153. Need help with my ST70
  154. 6sn7 direct coupled and transformer coupled
  155. Hickok 605A Test 6DJ8
  156. Grounded Grid Preamp
  157. Beginner WLTM fixer of 300B hum...
  158. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  159. How to figure gain on split-load with positive feedback?
  160. Mikaels KT88SE & VTV Octal Linestage
  161. idiot needs help making sense of funny squigles - Filmosound
  162. Custom Transformer?
  163. How are this schematic ?
  164. Need help with a Tube preamp Kit (6Z4, 6N3)
  165. data sheets for 7239 and 8068
  166. John Swenson's New BDT preamp
  167. no coupling caps
  168. 6SN7GT brand
  169. tube voltage regulator error amp
  170. driving 845's
  171. Just ordered a Korg EMX-1
  172. Maida for Screen Supply
  173. cracked el34 -> replacement squeals
  174. SimpleSE goes Push Pull
  175. Possibly defective Mullard 12AT7?
  176. Basic measurement question re: shorts
  177. EL84 DC 10Y Project
  178. TubeCad Journal FET CCS
  179. russian tube
  180. Source for #81 light bulb for Hickok Fuse
  181. pchw 's tube hybrid amp accurian info
  182. 3c24 se amp
  183. schematic of firstsoundaudio pre amp
  184. 300b-98c mesh bias
  185. 6SN7 coin base tubes
  186. tube rectifiers and electrolytic reforming w/ variac
  187. I'm running my leak stereo 20 single ended. WHAT???
  188. Varnish on old transformer
  189. SE parallel output questions
  190. Darius Loftin White explained
  191. best capacitor
  192. New Sensor's "Mullard" EL34 reissue?
  193. Best Way to Control Plate Voltage?
  194. Any Mods for a Noisy Leak Point one Stereo?
  195. tubes for 87db spendor
  196. 4v for rectifier tube
  197. Need help rebuilding old PA amplifier!
  198. inverted?
  199. Old Tube Radio - Restoration Project
  200. quick - need parts retailers Wash DC area
  201. H&K Tubeman Circuit Questions (added schematics!)
  202. Marshalls: Why did 600V B+ become 470V?
  203. Raising filament winding above cathode with a EZ81 in the circuit OK?
  204. Problem with Beard Audio
  205. 100K pot in a preamp?
  206. Motor Run Capacitor
  207. Power transformer for 6883B tube uses?
  208. EAGLE PCB help with socket on it
  209. Rca Mi-38188
  210. C- Battery Supply
  211. Seperating Preamp from Amp in Integrated Amps
  212. Wind my own output transformer for 100w bass amp
  213. Please help me in getting rid of the buzz.
  214. Tube Phono stage dilema
  215. Grounding with single tap secondary...
  216. VTL - Manley stereo 75
  217. What about KT100 in SE ?
  218. Tube amplifier kit needed to drive low efficiency speaker
  219. feeling very pleased with myself
  220. Quicksilver Retube
  221. My Totem Arro 4 ohm load on KT-88 based amp
  222. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  223. for fans of the EL38 - the E3375
  224. 811a Opt
  225. Guitar amp for Wes is running!
  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. Randall RGT 100 Amp Problem
  234. Pete's SE E-Linear
  235. 0A2 or 0D3 ?
  236. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  237. LTP feedback
  238. Need help with my super six...
  239. EL509 as a CF
  240. SE Diode
  241. 6FD7, 6BM8 or other
  242. My OLD Project....... cheap tube audio project!!!
  243. tube noise
  244. Fisher 400 questions
  245. RL12P35 amplifier
  246. 6AS7 ppp
  247. 6j5 dc coupled to 12b4a as 2a3 driver
  248. '81 Twin problems
  249. The sound of different EL34s.
  250. Output transformer and FB

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