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  1. Help me pick up some good tubes! Urgent!
  2. CLCRC power supply config
  3. Choke Replacement Question.
  4. What tube instead of 7189
  5. Help on PP EL 34 from Claus Byrith
  6. Datasheet of PTT4 tube?
  7. ready to give up
  8. O-Ring sizes for Tube Dampers
  9. preamp /amp combination question
  10. Strange Transformer Question.....
  11. Audio Note M3/4/5/6/8 schematics
  12. Lundahl LL1540 for SY's heretical?
  13. Henrys
  14. 955 Acorn tubes
  15. Do you know these Ampex mono Amps
  16. Audio Research Resistor Type
  17. What's the best low wattage guitar amp?
  18. volume issues
  19. Need advice for best CCS
  20. confusion in the resistor/capacitor values and B+ supply for the aikido
  21. What are the diferences between these ways of output?
  22. PS for tube preamp
  23. what resistors are in the aikido signal path
  24. clarification of aikido heater supply
  25. Audio Note schematics
  26. Data for PE08/40
  27. PA-060 use
  28. Anode loaded 6080 giving less than unity gain, Why??
  29. Frustration with hum and noise in guitar tube amp
  30. 3/8in thick acrylic - would this make a good chassis?
  31. 6c19p Se?
  32. CF and SRPP in one circuit . .
  33. WE417/437 with battery or RC on cathode
  34. Building a Preamp:Dual Outputs Question
  35. Audio Note Conquest?
  36. metallized caps instead of electrolytics in a tube rectifier power supply?
  37. Power transformer as Parafeed output?
  38. Bogen amp
  39. Noob question about plate load
  40. adjusting gain?
  41. Lowering HT
  42. Kaneda hybrid preamp error ?
  43. Match priorities to schematic & toobs
  44. what do you think of this integrated?
  45. Modified Audio Note M7 Tube Pre Amplifier PCB
  46. lundahl xformers - are they potted?
  47. Beginner's very simple line pre-amp
  48. UX-226 Preamp
  49. Difference between microphones
  50. sv572-30, where to find
  51. E182CC - how to connect heater supply?
  52. Aikido pre tube for Minimum Gain
  53. 14gt8...clipping diodes?
  54. HPHV regulator
  55. Grounded Grid
  56. NYAL Super-It - removing volume pots, what resistor value to replace them?
  57. Another Bogen Conversion
  58. Trouble with my "new" PAS-3 Preamp
  59. Tubalizer, Monica
  60. musical angel modified marantz 7 preamp schematics
  61. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  62. Solder directly on tube?
  63. article in NY Times on Russian tubes
  64. Sovtek's sad tale
  65. audio research LS25 preamp
  66. Schematic needed PL519 Push-Pull Ultra-Linear amp
  67. Use 6C19 in a phono amp?
  68. 6L6 Push pull -- Power tranny question
  69. INPOL technology. Duh.
  70. Transformer problem
  71. Anyone tried a hi-voltage project as their first?
  72. Schematic needed PL519 Class A SE
  73. Giaime's new toy - aka the UniOctal
  74. Critique my circuit?
  75. New EC8010-VT52 Amp
  76. EL84/6BQ5 triode pp with no cathode biasing
  77. EL34 Push Pull in Class A
  78. In search of tube audiophile in Dhaka, Bangladesh
  79. Passive preamp with utc transformers
  80. RGN rectifiers in PSUD2...
  81. Power amp harmonics ?
  82. bypass tone controls on heathkit sp-2
  83. PS Caps
  84. Doubts on cathode stripping in tubes
  85. Edcor amplifier --> 6l6 PP
  86. Welborne labs phono stage needs help, got killed in power surge last night
  87. Huge OPT and small tubes
  88. UTC technology
  89. Luxman 38FD schematic
  90. EL84 PP Diy. Pls help me!!!
  91. Wurlitzer amplifier needs help
  92. Grounding case of 6J5
  93. Tube HW question from a software guy
  94. 12AU7 tube preamplifier schema
  95. "Improved RIAA by Jax"-Power supply help needed!!!
  96. OT Overload question
  97. V76
  98. Application of 6877 ?
  99. First nos tubes
  100. Looking for tube sockets
  101. Input transformers impedance questions
  102. Hybrid amp schema?
  103. Hybrid Cascode ?
  104. Interstage topology question
  105. raccomandation with valve amps
  106. Power Transformers in Output!
  107. How do I design "SCREEN GRID DRIVE"
  108. My El34 SET
  109. Ancient Bogen 807PP Amp-Guitar
  110. Schematic needed 811a Class A2
  111. Power transformer from Tek545 'oscope
  112. Agape Audio Labs
  113. ETF06 - A century of good sound
  114. I completed my amp!
  115. Overload recovery
  116. Converting SS eq. to Tube
  117. oscillation
  118. Tube preamp with: 1V in and 15Vout???
  119. Electrolytic Cap Search
  120. Bibster's 5687 Linestage, the return
  121. Anyone know anything about Morreto amps?
  122. Determining Output Power
  123. Turn on static?
  124. Estimate power transformer current rate?
  125. Control grid Voltage / grid stoppers...
  126. Horizontal TV tubes used in amplifier?
  127. tube sterio preamp complete
  128. Cons for using instrumentation tube PS for project amp...
  129. Svetlanas site down?
  130. Calculations for new Power transformer
  131. Mullard CV4015 info?
  132. SMPS for tube amp?
  133. Pentode Push-Pull
  134. LL1660S Anomaly
  135. DIY Hybrid poweramp noise and hum problem
  136. tube questions
  137. Problems w/biasing a lC50
  138. Big Honkin Tele
  139. Tube DIY store
  140. Pronouced 300B amp Midrange
  141. Tube preamp with current mirror
  142. Transformer Coupling and Headphones? (Toob Noob)
  143. Who can explain the source of this Siemens 12AU7
  144. how does one tell when a tube is truely dead?
  145. A curious observation
  146. Help choosing capacitor value?
  147. Neon Power?
  148. The rectifier from hell, a little story.
  149. a directly heated monkey?
  150. 6l6gc SET, my first DIY
  151. SE Output Transformer Matching
  152. power tube biasing
  153. Jupiters: Tolerance: 26% over spec: o.k.?
  154. Help! 6DJ8 Tube Buffer Schematics
  155. Output Transformers for an EL84 Push-Pull Amp
  156. Advice regarding philips/mullard EL34
  157. 300b based monoblock plans
  158. need help for Marshall PCB
  159. Marshall schematic ?
  160. counterpoint Sa 5.1
  161. Help with bogen CH8
  162. where do you get those schematics / layouts?
  163. Spice 3f4 model of a low voltage direct heated signal level pentode
  164. ECC82
  165. Major diff between 12AX7 and 12AU7
  166. Voltage doubler question
  167. el34 instead of 6550
  168. Bogen CH8
  169. Ah Njoe Tjoeb 4000 problem
  170. my last project
  171. TIP50 voltage regulator
  172. Collets for 212 pins
  173. K-12M Enclosure + Upgrades. Finished!
  174. Will this work?
  175. Big tube - what is it?
  176. Help! no signal! Marshall JTM60
  177. PSU topology & regulator
  178. Dynaco from scratch
  179. 6HV5A Single Ended Amp
  180. Cheap but not too much !
  181. Quick Output Transformer Question
  182. Help with guitar tube amp mods
  183. strange thing with AMC 2030
  184. GE6072 replacement tube
  185. Counterpoint 5.1 preamp
  186. Tube library
  187. RIAA recording on CD
  188. Old SE transformer measuring?
  189. Speakers for tube amps...
  190. MF x10v3
  191. Free Tube Books.....
  192. A Transformer question
  193. 6v6 PP - No sound
  194. help with interstage needed
  195. Hum in Speakers
  196. Just another PP...
  197. Leak Stereo 20 questions
  198. 10M45 CCS, what am I doing wrong ?
  199. Various transformers
  200. tubes sound
  201. Power supply help!
  202. KR Tubes
  203. Bi-amp Between Tube, and SS
  204. 2 Tube questions,
  205. my biggest project ever , need lotsa help plz
  206. tube temperatures
  207. hh scott bias issues
  208. B+ required w/ ccs load
  209. Info re Soundtech powerone tube amp
  210. Verdier Regulated Power Supply
  211. 6DJ8/ECC88 mu-follower
  212. Tube Compressor
  213. Newbie PSU question
  214. Hickok Cardmatic tube tester cards
  215. Hashimoto SE Output Transformer
  216. Ripple and chokes
  217. Tubes driven by BJT's
  218. Red LED substitution questions
  219. Hytron big 71A
  220. Need some help for 6L6 amp
  221. 802 as an audio output tube
  222. Changing 6DJ8 SRPP stage gain
  223. Cooling In Cab / Minimum Vent Area?
  224. Tube voltage help
  225. MF XPre troubleshooting
  226. Giaime's Preamp Finished!!!
  227. Circuit and PCB Layout comments
  228. 4613 triode
  229. Help with inverter CCS+NFB
  230. Question about KT 88 integrated
  231. The Trials, and Tribulations of Bias
  232. Which components should be matched?
  233. Using PP output for SE?
  234. Tube Newbee Needing Guidance
  235. 12A/71A SET project
  236. 805 SE amplifier
  237. Playing with screen resistors
  238. Interpret this 12ax7 feedback loop
  239. Low voltage-drop CCS for LTP input stage?
  240. Tube Socket Mounting - rigid or floating
  241. SE-9 mod help please
  242. 2a3SE
  243. 20 Watt SE. I had found it.
  244. Ok to exceed Vg2 in triode? (Yes)
  245. Fender Adjustments
  246. Help needed in Bloomington IN
  247. % error for primary resistance
  248. Help Understanding Circuit (grounded grid I/V)
  249. Testing a 70.7v transformer
  250. thyratron?

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