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  1. Leak / Dynaco DIY
  2. S-5 tube amp kits
  3. I wanna build a CHEAP mono tube amp, need advice....
  4. 12ax7
  5. Testing for tube shorts
  6. KT66 alternatives in Quad II amps?
  7. FOR TUBE: 350V High Voltage Regulator
  8. what guideline to match pre and amp?
  9. New to list and 300B amp kits
  10. Primary impedance output transformer
  11. isolation transformer
  12. Cloning transformers
  13. EAR509
  14. Schematics of potential interest
  15. super capacitor for dc heater
  16. Need a kit ??
  17. Edcor XSM10K/15K like intestage in tube SE ?
  18. Does anyone know of an LTSpice model for 12B4?
  19. where to order V-Cap ?
  20. Input Volume Pot
  21. Red Army Power-amp
  22. Cloning a HF-60
  23. Michaelson & Austin TVA-1 info
  24. analyze a circuit...quiescence current and R-Load
  25. how to calculate SE Coupling Cap Voltage ?
  26. Mullard ECC88
  27. Engineering vs tube rolling
  28. Diode Peak working voltage ?
  29. Help wanted; combining topologies to "new" 807 PPP design ?
  30. Hybrid Amp
  31. transformer information need help
  32. Replacing a cathode resistor with a CCS
  33. DC offset and relays
  34. Sourcing JJ 300B tubes
  35. Decware Vs Rogue Audio
  36. Global Feedback on Mikael's KT88SE
  37. Generating big voltage swings without 'iron'
  38. 6AS7G Grid Voltage ??
  39. Next project 6EM7
  40. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  41. What to replace these caps with?
  42. 5691 plate value ratings
  43. Bussiness trip to Singapore
  44. Paco mike tube amp
  45. Emergency help with Wes' amp
  46. 2A3 without cathode bypass cap???
  47. Best way to burn-in my new SE xfrmers on the bench?
  48. Need help with my ST70
  49. 6sn7 direct coupled and transformer coupled
  50. Grounded Grid Preamp
  51. Beginner WLTM fixer of 300B hum...
  52. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  53. How to figure gain on split-load with positive feedback?
  54. Mikaels KT88SE & VTV Octal Linestage
  55. idiot needs help making sense of funny squigles - Filmosound
  56. Custom Transformer?
  57. How are this schematic ?
  58. Need help with a Tube preamp Kit (6Z4, 6N3)
  59. data sheets for 7239 and 8068
  60. John Swenson's New BDT preamp
  61. no coupling caps
  62. 6SN7GT brand
  63. tube voltage regulator error amp
  64. driving 845's
  65. Just ordered a Korg EMX-1
  66. Maida for Screen Supply
  67. cracked el34 -> replacement squeals
  68. SimpleSE goes Push Pull
  69. Possibly defective Mullard 12AT7?
  70. Basic measurement question re: shorts
  71. EL84 DC 10Y Project
  72. TubeCad Journal FET CCS
  73. russian tube
  74. pchw 's tube hybrid amp accurian info
  75. 3c24 se amp
  76. schematic of firstsoundaudio pre amp
  77. 300b-98c mesh bias
  78. 6SN7 coin base tubes
  79. tube rectifiers and electrolytic reforming w/ variac
  80. I'm running my leak stereo 20 single ended. WHAT???
  81. Varnish on old transformer
  82. SE parallel output questions
  83. Darius Loftin White explained
  84. New Sensor's "Mullard" EL34 reissue?
  85. Best Way to Control Plate Voltage?
  86. Any Mods for a Noisy Leak Point one Stereo?
  87. tubes for 87db spendor
  88. 4v for rectifier tube
  89. Need help rebuilding old PA amplifier!
  90. inverted?
  91. Old Tube Radio - Restoration Project
  92. quick - need parts retailers Wash DC area
  93. H&K Tubeman Circuit Questions (added schematics!)
  94. Raising filament winding above cathode with a EZ81 in the circuit OK?
  95. Problem with Beard Audio
  96. 100K pot in a preamp?
  97. Power transformer for 6883B tube uses?
  98. Rca Mi-38188
  99. C- Battery Supply
  100. Seperating Preamp from Amp in Integrated Amps
  101. Please help me in getting rid of the buzz.
  102. Tube Phono stage dilema
  103. Grounding with single tap secondary...
  104. VTL - Manley stereo 75
  105. What about KT100 in SE ?
  106. Tube amplifier kit needed to drive low efficiency speaker
  107. feeling very pleased with myself
  108. Quicksilver Retube
  109. My Totem Arro 4 ohm load on KT-88 based amp
  110. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  111. for fans of the EL38 - the E3375
  112. 811a Opt
  113. Pure class-A or class AB?
  114. 12B4 PP Full Differential Amp Notion
  115. My opinion on Audio Note M10 schematic - Japan version
  116. Help, I need your advice - What Next?
  117. Sloppy, Unreadable, Childlike schematics
  118. Anybody going to tomorrow's NVCF fair in Leamington?
  119. Pete's SE E-Linear
  120. 0A2 or 0D3 ?
  121. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  122. LTP feedback
  123. Need help with my super six...
  124. EL509 as a CF
  125. SE Diode
  126. 6FD7, 6BM8 or other
  127. My OLD Project....... cheap tube audio project!!!
  128. tube noise
  129. Fisher 400 questions
  130. RL12P35 amplifier
  131. 6AS7 ppp
  132. 6j5 dc coupled to 12b4a as 2a3 driver
  133. The sound of different EL34īs.
  134. Output transformer and FB
  135. Triode curves for 6AU5
  136. 26/el-84 amp possible..?
  137. Vaic 52B monos
  138. Hour Meter for a Tube Amp..
  139. volume pot replacement
  140. Ampex 600
  141. Tubing Testing...how are these numbers?
  142. No-R No-C Power Supply
  143. Are my Speakers efficient enough for my Amp?
  144. doesn't sound quite right
  145. 6DJ8 alternates?
  146. Is this the dumbest question?
  147. Fuse between B+ and output transformer?
  148. Telefunken Double Label Error...Ever seen this?
  149. 300B Summer Build Question
  150. 1,25kW tube amplifier/modulator
  151. 12sn7 heater-cathode voltage
  152. Toroidal output transformers with screen drive- why not?
  153. Help With 6v6 Spice Model
  154. Different 5AR4's have different voltages and warm up time.
  155. Edcor OPT in S5 Electronics K-16LS kit?
  156. SRPP Powersupply, replace R with choke ?
  157. First tube amp
  158. Best low-signal direct heated triodes?
  159. 25-position switched attenuator using a pair of 5-position switches?
  160. Help with dead Jadis Defy7 Amp
  161. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  162. Remote control for integrated tube amp
  163. EL34 pp "fixed" bias is wandering
  164. US sources Russian Surplus
  165. Convert RCA tuner/pre to high perf AM only
  166. Metal Can 6CA7s
  167. Bypassing B+ in PP amp
  168. Tube shunt regulator for phono amp
  169. speaker that can be driven by tube amp
  170. Need help with volume control.
  171. Flame triodes!
  172. make OPT
  173. Tube GU50 made in Russia
  174. Expectations of new tube specs
  175. DC on preamp input
  176. We're up and going!
  177. Putting serial number on tubes
  178. Which of these tubes is best?
  179. Stepped attenuator resistor calculation software
  180. Help with PSU for tube DAC output stage
  181. single-tube (6GN8) amplifier?
  182. Dukane schematic needed
  183. Bloody pinouts!
  184. Testing 5651WA on the bench
  185. phase splitter concerns ?
  186. phono pre RIAA 2001
  187. Quick output transformer wiring question
  188. Can I.....
  189. Cathode FB P.P. Strange behaviour.
  190. Historic Valve Assembly Vids Mullard Content
  191. Unknown output impedance
  192. Any matching in 12AT7 sections? (SimpleSE)
  193. Over-voltage on heaters...
  194. Stray capacitance of CCS
  195. CCS Design for DHT Filaments
  196. YAQIN MC-10L to Klipsch B-3 Speakers
  197. Sonic effects of tubes
  198. Gubin Valve Stereo Amplifier Question
  199. 6J5 Shootout - which one's best?
  200. Chinese Tube Amps?
  201. 26 DHT users please comment on what you built & use.
  202. auricap Vs musicap (Another Cap Question)
  203. Help with splitter design for 7591 PP
  204. Tron Seven
  205. blue glow on one channel
  206. Suitable Power Trans for 6gw8/6bm8/el84
  207. Dynaco Pas 3 Hiss from HV regulator
  208. Got the build itch again. 80w kt88
  209. lm317 CCS question
  210. LM334z
  211. Parafeeding a Tetrode
  212. Differential stage biasing choice
  213. Got an overshoot problem.
  214. Help! What could possibly be wrong?
  215. Noise - 6J5 - 71a -300B amp
  216. crude, simple and powerful PP-amplifier
  217. What's the appeal of type 80 rectifiers?
  218. 6N7 PP amplifier
  219. 300 KW tube audio amplifire-modulator
  220. Weird amp on ebay
  221. which type of rubber cushion under transformers?
  222. 12at7 LTP CCS
  223. Which value of a potentiometer
  224. Strange circuit - heater hum opt feedback?
  225. Aikido question
  226. Copland CTA-402 Phono Section Comments
  227. Rebiasing my DSL-100
  228. My EL84 SE
  229. K-16LS kit Assembled and Working
  230. Claus Byrith 30W PP
  231. Aikido pre and class T amplifier ...for a newby
  232. Best replacement for Black Gate WKZ?
  233. DIY Jukebox!!
  234. Partial feedback confusion
  235. Anyone used the 7C7 loktal pentode?
  236. Is vacuumtubes.net still in business?
  237. Rectifier Tubes
  238. music angel kt88 tube amp schmetic needed
  239. Next project suggestions
  240. Unpotted Peerless 16309 OPT from Heath W5m
  241. 6au6 Cf
  242. Direct-Coupling Question
  243. Help on CCS PP differential driver stage for SE 845 amp
  244. I'm Looking for this Similar Schematic !
  245. ECL86 preamp critique please
  246. Low cost 6AV5 design questions (long)
  247. Got my tube spice models, and tubed CD player page back on the air
  248. Vsac 2008?
  249. How hot do Hammond chokes get?
  250. Transformer current question

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