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  1. 1st Post (here) : ) My first project: Boozhound Amp
  2. regulated DC heater supply
  3. Help me pick up some good tubes! Urgent!
  4. CLCRC power supply config
  5. Choke Replacement Question.
  6. What tube instead of 7189
  7. Help on PP EL 34 from Claus Byrith
  8. Datasheet of PTT4 tube?
  9. ready to give up
  10. O-Ring sizes for Tube Dampers
  11. preamp /amp combination question
  12. Strange Transformer Question.....
  13. Audio Note M3/4/5/6/8 schematics
  14. Lundahl LL1540 for SY's heretical?
  15. Henrys
  16. 955 Acorn tubes
  17. Do you know these Ampex mono Amps
  18. Audio Research Resistor Type
  19. volume issues
  20. Need advice for best CCS
  21. confusion in the resistor/capacitor values and B+ supply for the aikido
  22. What are the diferences between these ways of output?
  23. PS for tube preamp
  24. what resistors are in the aikido signal path
  25. clarification of aikido heater supply
  26. Audio Note schematics
  27. Data for PE08/40
  28. PA-060 use
  29. Anode loaded 6080 giving less than unity gain, Why??
  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. Power transformer as Parafeed output?
  37. Bogen amp
  38. Noob question about plate load
  39. adjusting gain?
  40. Lowering HT
  41. Kaneda hybrid preamp error ?
  42. Match priorities to schematic & toobs
  43. what do you think of this integrated?
  44. Modified Audio Note M7 Tube Pre Amplifier PCB
  45. lundahl xformers - are they potted?
  46. Beginner's very simple line pre-amp
  47. UX-226 Preamp
  48. Difference between microphones
  49. sv572-30, where to find
  50. E182CC - how to connect heater supply?
  51. Aikido pre tube for Minimum Gain
  52. 14gt8...clipping diodes?
  53. HPHV regulator
  54. Grounded Grid
  55. NYAL Super-It - removing volume pots, what resistor value to replace them?
  56. Another Bogen Conversion
  57. Trouble with my "new" PAS-3 Preamp
  58. Tubalizer, Monica
  59. musical angel modified marantz 7 preamp schematics
  60. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  61. Solder directly on tube?
  62. article in NY Times on Russian tubes
  63. Sovtek's sad tale
  64. audio research LS25 preamp
  65. Schematic needed PL519 Push-Pull Ultra-Linear amp
  66. Use 6C19 in a phono amp?
  67. 6L6 Push pull -- Power tranny question
  68. INPOL technology. Duh.
  69. Transformer problem
  70. Anyone tried a hi-voltage project as their first?
  71. Schematic needed PL519 Class A SE
  72. Giaime's new toy - aka the UniOctal
  73. Critique my circuit?
  74. New EC8010-VT52 Amp
  75. EL84/6BQ5 triode pp with no cathode biasing
  76. EL34 Push Pull in Class A
  77. In search of tube audiophile in Dhaka, Bangladesh
  78. Passive preamp with utc transformers
  79. RGN rectifiers in PSUD2...
  80. Power amp harmonics ?
  81. bypass tone controls on heathkit sp-2
  82. Doubts on cathode stripping in tubes
  83. Edcor amplifier --> 6l6 PP
  84. Welborne labs phono stage needs help, got killed in power surge last night
  85. Huge OPT and small tubes
  86. UTC technology
  87. Luxman 38FD schematic
  88. EL84 PP Diy. Pls help me!!!
  89. Grounding case of 6J5
  90. Tube HW question from a software guy
  91. 12AU7 tube preamplifier schema
  92. "Improved RIAA by Jax"-Power supply help needed!!!
  93. OT Overload question
  94. V76
  95. Application of 6877 ?
  96. First nos tubes
  97. Looking for tube sockets
  98. Input transformers impedance questions
  99. Hybrid amp schema?
  100. Hybrid Cascode ?
  101. Interstage topology question
  102. raccomandation with valve amps
  103. Power Transformers in Output!
  104. How do I design "SCREEN GRID DRIVE"
  105. My El34 SET
  106. Schematic needed 811a Class A2
  107. Power transformer from Tek545 'oscope
  108. Agape Audio Labs
  109. ETF06 - A century of good sound
  110. I completed my amp!
  111. Overload recovery
  112. Converting SS eq. to Tube
  113. oscillation
  114. Tube preamp with: 1V in and 15Vout???
  115. Bibster's 5687 Linestage, the return
  116. Anyone know anything about Morreto amps?
  117. Determining Output Power
  118. Turn on static?
  119. Estimate power transformer current rate?
  120. Control grid Voltage / grid stoppers...
  121. Horizontal TV tubes used in amplifier?
  122. tube sterio preamp complete
  123. Cons for using instrumentation tube PS for project amp...
  124. Svetlanas site down?
  125. Calculations for new Power transformer
  126. Mullard CV4015 info?
  127. SMPS for tube amp?
  128. Pentode Push-Pull
  129. LL1660S Anomaly
  130. DIY Hybrid poweramp noise and hum problem
  131. tube questions
  132. Problems w/biasing a lC50
  133. Big Honkin Tele
  134. Tube DIY store
  135. Pronouced 300B amp Midrange
  136. Tube preamp with current mirror
  137. Transformer Coupling and Headphones? (Toob Noob)
  138. Who can explain the source of this Siemens 12AU7
  139. how does one tell when a tube is truely dead?
  140. A curious observation
  141. Help choosing capacitor value?
  142. Neon Power?
  143. The rectifier from hell, a little story.
  144. a directly heated monkey?
  145. 6l6gc SET, my first DIY
  146. SE Output Transformer Matching
  147. power tube biasing
  148. Jupiters: Tolerance: 26% over spec: o.k.?
  149. Help! 6DJ8 Tube Buffer Schematics
  150. Output Transformers for an EL84 Push-Pull Amp
  151. Advice regarding philips/mullard EL34
  152. 300b based monoblock plans
  153. counterpoint Sa 5.1
  154. Help with bogen CH8
  155. where do you get those schematics / layouts?
  156. Spice 3f4 model of a low voltage direct heated signal level pentode
  157. ECC82
  158. Major diff between 12AX7 and 12AU7
  159. el34 instead of 6550
  160. Bogen CH8
  161. Ah Njoe Tjoeb 4000 problem
  162. my last project
  163. TIP50 voltage regulator
  164. Collets for 212 pins
  165. K-12M Enclosure + Upgrades. Finished!
  166. Will this work?
  167. Big tube - what is it?
  168. PSU topology & regulator
  169. Dynaco from scratch
  170. 6HV5A Single Ended Amp
  171. Cheap but not too much !
  172. Quick Output Transformer Question
  173. strange thing with AMC 2030
  174. GE6072 replacement tube
  175. Counterpoint 5.1 preamp
  176. Tube library
  177. RIAA recording on CD
  178. Old SE transformer measuring?
  179. Speakers for tube amps...
  180. MF x10v3
  181. Free Tube Books.....
  182. A Transformer question
  183. 6v6 PP - No sound
  184. help with interstage needed
  185. Hum in Speakers
  186. Just another PP...
  187. Leak Stereo 20 questions
  188. 10M45 CCS, what am I doing wrong ?
  189. Various transformers
  190. tubes sound
  191. Power supply help!
  192. KR Tubes
  193. Bi-amp Between Tube, and SS
  194. 2 Tube questions,
  195. my biggest project ever , need lotsa help plz
  196. tube temperatures
  197. hh scott bias issues
  198. B+ required w/ ccs load
  199. Info re Soundtech powerone tube amp
  200. Verdier Regulated Power Supply
  201. 6DJ8/ECC88 mu-follower
  202. Tube Compressor
  203. Newbie PSU question
  204. Hickok Cardmatic tube tester cards
  205. Hashimoto SE Output Transformer
  206. Ripple and chokes
  207. Tubes driven by BJT's
  208. Red LED substitution questions
  209. Hytron big 71A
  210. Need some help for 6L6 amp
  211. 802 as an audio output tube
  212. Changing 6DJ8 SRPP stage gain
  213. Cooling In Cab / Minimum Vent Area?
  214. Tube voltage help
  215. MF XPre troubleshooting
  216. Giaime's Preamp Finished!!!
  217. Circuit and PCB Layout comments
  218. 4613 triode
  219. Help with inverter CCS+NFB
  220. Question about KT 88 integrated
  221. The Trials, and Tribulations of Bias
  222. Which components should be matched?
  223. Using PP output for SE?
  224. Tube Newbee Needing Guidance
  225. 12A/71A SET project
  226. 805 SE amplifier
  227. Playing with screen resistors
  228. Interpret this 12ax7 feedback loop
  229. Low voltage-drop CCS for LTP input stage?
  230. Tube Socket Mounting - rigid or floating
  231. SE-9 mod help please
  232. 2a3SE
  233. 20 Watt SE. I had found it.
  234. Ok to exceed Vg2 in triode? (Yes)
  235. Help needed in Bloomington IN
  236. % error for primary resistance
  237. Help Understanding Circuit (grounded grid I/V)
  238. Testing a 70.7v transformer
  239. thyratron?
  240. Tube frontend....
  241. Transformer and Choke Grounding?
  242. El509 Pse
  243. 6550 Safety Question
  244. Jadis Defy 7 : Manual
  245. Melos Ma-111b
  246. Old audio amp change
  247. Need 45 tubes
  248. Jadis Defy 7 : Manual ??
  249. Help for pre-amp and two single-ended finals
  250. Schematic needed:MFA Magus B

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