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  1. glass audio 1995 "Single Ended Glory"
  2. Manual for Heathkit AA-121 Power Amp
  3. Low gain triode recommendation plz
  4. Output transformer impedance question
  5. Choke... The side makes difference?
  6. Fostex Meets Pentode I need some NFB
  7. Oddball Sweep tubes in PP
  8. big doubt: dynakit st35 VS diytube st35clone
  9. Noob - where to start?
  10. Compactron Output Tubes
  11. XPP amp
  12. Getting only 400 hours on Class A2 PP tube
  13. Pete Millett's 829B amp -> monoblocks
  14. 6JU8A Spec confusion
  15. post on amp design by a newbie
  16. (INDIA) ECC802S/EL84 build, hardware requirements
  17. 6gw8 /ECL86 El Cheapo modifications
  18. Danielak's 300B design
  19. 6080 @ 800A Question ...
  20. Groundplane layout theory
  21. delay on for 83 mercury vapor
  22. Anyone tried "Weber Copper" SS rectifyers?
  23. Scored a bunch of tubes at HamCon
  24. AB2 Anyone else done similiar
  25. 6v6 pp amplifier
  26. Loud 60 cycle Hum from tube amp.
  27. Building a Preamp
  28. another Big One....:)
  29. JJ factory pictures ...
  30. Good enough CFs
  31. What's a good way to clean tubes w/o taking off the labeling?
  32. 6BX7 or 12B4A for small SE amp?
  33. Schematic collection posted by a kind soul...
  34. Dumb question, but...
  35. Zen Quad 22
  36. I'm baffled -- 6AK6 push-pull amp
  37. pin count question
  38. 1G3 Max Dissapation?
  39. Edcor Transformers
  40. 12EL6 preamp
  41. Request for EICO HF-20 experiences and ideas
  42. So would this work?
  43. Small-signal (or small power) pentode that can handle 400V (or more)?
  44. Are 6GM8's rare?
  45. How to lower mains voltage using resistors
  46. Music angel XD-SE EL34
  47. Potential project for some inherited transformers
  48. Car Tube Amp?
  49. Marantz 7 Preamp
  50. Euridice pramp but with 45
  51. Can 6AK6's take high voltages?
  52. Tube equal to one section of a 12AX7?
  53. HK 'Deuce front end on G2 drive output stage?
  54. Direct-coupled cathode/source follower driver in PP?
  55. CCS power supply loading..
  56. Buying vintage good tubes
  57. current tube manufacturers and or brands
  58. PSU with TL783-question
  59. Hashimoto H-20-7U for 6v6 in triode SE..?
  60. Speakers impedance
  61. mesh plate el34 (supereTNT)
  62. Tagboard amps
  63. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  64. 6CL6 vs. 12BY7A
  65. Suggestions for a good tube line amp
  66. 12el6
  67. High Squareness Ratio of a Transformer
  68. What causes a tube to crack?
  69. Ming Da MC-7R transformers for Quad 22 clone.
  70. SimpleSE and Switches
  71. Bias and distortion 6EM7
  72. Need ideas - 6L6GA & 6X5GT
  73. Firestone Air Chief
  74. Zenith Console find, amp suggestions?
  75. 5842 russian equiv 6S45P or 6C45PI ?
  76. bizarre or good topology idea?
  77. 12 EL6 car preamp
  78. Waxy substance leaking from vintage OPT
  79. Output transformer protection fuses
  80. 5670 SRPP DC coupled to 6S4A
  81. L as last filter element?
  82. Strong cigarette smell in a tube amp
  83. Gas coupling?
  84. Differences between nos Tesla E88CC?
  85. Harmonic parrot food?
  86. Modified 6V6 amp, 350 volt @ 250 K HZ output
  87. best current production el34
  88. Help for correct grounding a Dared VP-845
  89. two 6AL5s as a bridge rectifier
  90. JFET Switching on my tube amp
  91. Leak / Dynaco DIY
  92. S-5 tube amp kits
  93. I wanna build a CHEAP mono tube amp, need advice....
  94. 12ax7
  95. Testing for tube shorts
  96. KT66 alternatives in Quad II amps?
  97. FOR TUBE: 350V High Voltage Regulator
  98. what guideline to match pre and amp?
  99. New to list and 300B amp kits
  100. Primary impedance output transformer
  101. isolation transformer
  102. Cloning transformers
  103. EAR509
  104. Schematics of potential interest
  105. super capacitor for dc heater
  106. Need a kit ??
  107. Edcor XSM10K/15K like intestage in tube SE ?
  108. Does anyone know of an LTSpice model for 12B4?
  109. where to order V-Cap ?
  110. Input Volume Pot
  111. Red Army Power-amp
  112. Cloning a HF-60
  113. Michaelson & Austin TVA-1 info
  114. analyze a circuit...quiescence current and R-Load
  115. how to calculate SE Coupling Cap Voltage ?
  116. Mullard ECC88
  117. Engineering vs tube rolling
  118. Diode Peak working voltage ?
  119. Help wanted; combining topologies to "new" 807 PPP design ?
  120. Hybrid Amp
  121. transformer information need help
  122. Replacing a cathode resistor with a CCS
  123. DC offset and relays
  124. Sourcing JJ 300B tubes
  125. Decware Vs Rogue Audio
  126. Global Feedback on Mikael's KT88SE
  127. Generating big voltage swings without 'iron'
  128. 6AS7G Grid Voltage ??
  129. Next project 6EM7
  130. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  131. What to replace these caps with?
  132. 5691 plate value ratings
  133. Bussiness trip to Singapore
  134. Paco mike tube amp
  135. Emergency help with Wes' amp
  136. 2A3 without cathode bypass cap???
  137. Best way to burn-in my new SE xfrmers on the bench?
  138. Need help with my ST70
  139. 6sn7 direct coupled and transformer coupled
  140. Grounded Grid Preamp
  141. Beginner WLTM fixer of 300B hum...
  142. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  143. How to figure gain on split-load with positive feedback?
  144. Mikaels KT88SE & VTV Octal Linestage
  145. idiot needs help making sense of funny squigles - Filmosound
  146. Custom Transformer?
  147. How are this schematic ?
  148. Need help with a Tube preamp Kit (6Z4, 6N3)
  149. data sheets for 7239 and 8068
  150. John Swenson's New BDT preamp
  151. no coupling caps
  152. 6SN7GT brand
  153. tube voltage regulator error amp
  154. driving 845's
  155. Just ordered a Korg EMX-1
  156. Maida for Screen Supply
  157. cracked el34 -> replacement squeals
  158. SimpleSE goes Push Pull
  159. Possibly defective Mullard 12AT7?
  160. Basic measurement question re: shorts
  161. EL84 DC 10Y Project
  162. TubeCad Journal FET CCS
  163. russian tube
  164. pchw 's tube hybrid amp accurian info
  165. 3c24 se amp
  166. schematic of firstsoundaudio pre amp
  167. 300b-98c mesh bias
  168. 6SN7 coin base tubes
  169. tube rectifiers and electrolytic reforming w/ variac
  170. I'm running my leak stereo 20 single ended. WHAT???
  171. Varnish on old transformer
  172. SE parallel output questions
  173. Darius Loftin White explained
  174. New Sensor's "Mullard" EL34 reissue?
  175. Best Way to Control Plate Voltage?
  176. Any Mods for a Noisy Leak Point one Stereo?
  177. tubes for 87db spendor
  178. 4v for rectifier tube
  179. Need help rebuilding old PA amplifier!
  180. inverted?
  181. Old Tube Radio - Restoration Project
  182. quick - need parts retailers Wash DC area
  183. H&K Tubeman Circuit Questions (added schematics!)
  184. Raising filament winding above cathode with a EZ81 in the circuit OK?
  185. Problem with Beard Audio
  186. 100K pot in a preamp?
  187. Power transformer for 6883B tube uses?
  188. Rca Mi-38188
  189. C- Battery Supply
  190. Seperating Preamp from Amp in Integrated Amps
  191. Please help me in getting rid of the buzz.
  192. Tube Phono stage dilema
  193. Grounding with single tap secondary...
  194. VTL - Manley stereo 75
  195. What about KT100 in SE ?
  196. Tube amplifier kit needed to drive low efficiency speaker
  197. feeling very pleased with myself
  198. Quicksilver Retube
  199. My Totem Arro 4 ohm load on KT-88 based amp
  200. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  201. for fans of the EL38 - the E3375
  202. 811a Opt
  203. Pure class-A or class AB?
  204. 12B4 PP Full Differential Amp Notion
  205. My opinion on Audio Note M10 schematic - Japan version
  206. Help, I need your advice - What Next?
  207. Sloppy, Unreadable, Childlike schematics
  208. Anybody going to tomorrow's NVCF fair in Leamington?
  209. Pete's SE E-Linear
  210. 0A2 or 0D3 ?
  211. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  212. LTP feedback
  213. Need help with my super six...
  214. EL509 as a CF
  215. SE Diode
  216. 6FD7, 6BM8 or other
  217. My OLD Project....... cheap tube audio project!!!
  218. tube noise
  219. Fisher 400 questions
  220. RL12P35 amplifier
  221. 6AS7 ppp
  222. 6j5 dc coupled to 12b4a as 2a3 driver
  223. The sound of different EL34s.
  224. Output transformer and FB
  225. Triode curves for 6AU5
  226. 26/el-84 amp possible..?
  227. Vaic 52B monos
  228. Hour Meter for a Tube Amp..
  229. volume pot replacement
  230. Ampex 600
  231. Tubing Testing...how are these numbers?
  232. No-R No-C Power Supply
  233. Are my Speakers efficient enough for my Amp?
  234. doesn't sound quite right
  235. 6DJ8 alternates?
  236. Is this the dumbest question?
  237. Fuse between B+ and output transformer?
  238. Telefunken Double Label Error...Ever seen this?
  239. 300B Summer Build Question
  240. 1,25kW tube amplifier/modulator
  241. 12sn7 heater-cathode voltage
  242. Toroidal output transformers with screen drive- why not?
  243. Help With 6v6 Spice Model
  244. Different 5AR4's have different voltages and warm up time.
  245. Edcor OPT in S5 Electronics K-16LS kit?
  246. SRPP Powersupply, replace R with choke ?
  247. First tube amp
  248. Best low-signal direct heated triodes?
  249. 25-position switched attenuator using a pair of 5-position switches?
  250. Help with dead Jadis Defy7 Amp

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