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  1. sv572-30, where to find
  2. E182CC - how to connect heater supply?
  3. Aikido pre tube for Minimum Gain
  4. 14gt8...clipping diodes?
  5. HPHV regulator
  6. Grounded Grid
  7. NYAL Super-It - removing volume pots, what resistor value to replace them?
  8. Another Bogen Conversion
  9. Trouble with my "new" PAS-3 Preamp
  10. Tubalizer, Monica
  11. musical angel modified marantz 7 preamp schematics
  12. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  13. Solder directly on tube?
  14. article in NY Times on Russian tubes
  15. Sovtek's sad tale
  16. audio research LS25 preamp
  17. Schematic needed PL519 Push-Pull Ultra-Linear amp
  18. Use 6C19 in a phono amp?
  19. 6L6 Push pull -- Power tranny question
  20. INPOL technology. Duh.
  21. Transformer problem
  22. Anyone tried a hi-voltage project as their first?
  23. Schematic needed PL519 Class A SE
  24. Giaime's new toy - aka the UniOctal
  25. Critique my circuit?
  26. New EC8010-VT52 Amp
  27. EL84/6BQ5 triode pp with no cathode biasing
  28. EL34 Push Pull in Class A
  29. In search of tube audiophile in Dhaka, Bangladesh
  30. Passive preamp with utc transformers
  31. RGN rectifiers in PSUD2...
  32. Power amp harmonics ?
  33. bypass tone controls on heathkit sp-2
  34. PS Caps
  35. Doubts on cathode stripping in tubes
  36. Edcor amplifier --> 6l6 PP
  37. Welborne labs phono stage needs help, got killed in power surge last night
  38. Huge OPT and small tubes
  39. UTC technology
  40. Luxman 38FD schematic
  41. EL84 PP Diy. Pls help me!!!
  42. Wurlitzer amplifier needs help
  43. Grounding case of 6J5
  44. Tube HW question from a software guy
  45. 12AU7 tube preamplifier schema
  46. "Improved RIAA by Jax"-Power supply help needed!!!
  47. OT Overload question
  48. V76
  49. Application of 6877 ?
  50. First nos tubes
  51. Looking for tube sockets
  52. Input transformers impedance questions
  53. Hybrid amp schema?
  54. Hybrid Cascode ?
  55. Interstage topology question
  56. raccomandation with valve amps
  57. Power Transformers in Output!
  58. How do I design "SCREEN GRID DRIVE"
  59. My El34 SET
  60. Ancient Bogen 807PP Amp-Guitar
  61. Schematic needed 811a Class A2
  62. Power transformer from Tek545 'oscope
  63. Agape Audio Labs
  64. ETF06 - A century of good sound
  65. I completed my amp!
  66. Overload recovery
  67. Converting SS eq. to Tube
  68. oscillation
  69. Tube preamp with: 1V in and 15Vout???
  70. Electrolytic Cap Search
  71. Bibster's 5687 Linestage, the return
  72. Anyone know anything about Morreto amps?
  73. Determining Output Power
  74. Turn on static?
  75. Estimate power transformer current rate?
  76. Control grid Voltage / grid stoppers...
  77. Horizontal TV tubes used in amplifier?
  78. tube sterio preamp complete
  79. Cons for using instrumentation tube PS for project amp...
  80. Svetlanas site down?
  81. Calculations for new Power transformer
  82. Mullard CV4015 info?
  83. SMPS for tube amp?
  84. Pentode Push-Pull
  85. LL1660S Anomaly
  86. DIY Hybrid poweramp noise and hum problem
  87. tube questions
  88. Problems w/biasing a lC50
  89. Big Honkin Tele
  90. Tube DIY store
  91. Pronouced 300B amp Midrange
  92. Tube preamp with current mirror
  93. Transformer Coupling and Headphones? (Toob Noob)
  94. Who can explain the source of this Siemens 12AU7
  95. how does one tell when a tube is truely dead?
  96. A curious observation
  97. Help choosing capacitor value?
  98. Neon Power?
  99. The rectifier from hell, a little story.
  100. a directly heated monkey?
  101. 6l6gc SET, my first DIY
  102. SE Output Transformer Matching
  103. power tube biasing
  104. Jupiters: Tolerance: 26% over spec: o.k.?
  105. Help! 6DJ8 Tube Buffer Schematics
  106. Output Transformers for an EL84 Push-Pull Amp
  107. Advice regarding philips/mullard EL34
  108. 300b based monoblock plans
  109. need help for Marshall PCB
  110. Marshall schematic ?
  111. counterpoint Sa 5.1
  112. Help with bogen CH8
  113. where do you get those schematics / layouts?
  114. Spice 3f4 model of a low voltage direct heated signal level pentode
  115. ECC82
  116. Major diff between 12AX7 and 12AU7
  117. Voltage doubler question
  118. el34 instead of 6550
  119. Bogen CH8
  120. Ah Njoe Tjoeb 4000 problem
  121. my last project
  122. TIP50 voltage regulator
  123. Collets for 212 pins
  124. K-12M Enclosure + Upgrades. Finished!
  125. Will this work?
  126. Big tube - what is it?
  127. Help! no signal! Marshall JTM60
  128. PSU topology & regulator
  129. Dynaco from scratch
  130. 6HV5A Single Ended Amp
  131. Cheap but not too much !
  132. Quick Output Transformer Question
  133. Help with guitar tube amp mods
  134. strange thing with AMC 2030
  135. GE6072 replacement tube
  136. Counterpoint 5.1 preamp
  137. Tube library
  138. RIAA recording on CD
  139. Old SE transformer measuring?
  140. Speakers for tube amps...
  141. MF x10v3
  142. Free Tube Books.....
  143. A Transformer question
  144. 6v6 PP - No sound
  145. help with interstage needed
  146. Hum in Speakers
  147. Just another PP...
  148. Leak Stereo 20 questions
  149. 10M45 CCS, what am I doing wrong ?
  150. Various transformers
  151. tubes sound
  152. Power supply help!
  153. KR Tubes
  154. Bi-amp Between Tube, and SS
  155. 2 Tube questions,
  156. my biggest project ever , need lotsa help plz
  157. tube temperatures
  158. hh scott bias issues
  159. B+ required w/ ccs load
  160. Info re Soundtech powerone tube amp
  161. Verdier Regulated Power Supply
  162. 6DJ8/ECC88 mu-follower
  163. Tube Compressor
  164. Newbie PSU question
  165. Hickok Cardmatic tube tester cards
  166. Hashimoto SE Output Transformer
  167. Ripple and chokes
  168. Tubes driven by BJT's
  169. Red LED substitution questions
  170. Hytron big 71A
  171. Need some help for 6L6 amp
  172. 802 as an audio output tube
  173. Changing 6DJ8 SRPP stage gain
  174. Cooling In Cab / Minimum Vent Area?
  175. Tube voltage help
  176. MF XPre troubleshooting
  177. Giaime's Preamp Finished!!!
  178. Circuit and PCB Layout comments
  179. 4613 triode
  180. Help with inverter CCS+NFB
  181. Question about KT 88 integrated
  182. The Trials, and Tribulations of Bias
  183. Which components should be matched?
  184. Using PP output for SE?
  185. Tube Newbee Needing Guidance
  186. 12A/71A SET project
  187. 805 SE amplifier
  188. Playing with screen resistors
  189. Interpret this 12ax7 feedback loop
  190. Low voltage-drop CCS for LTP input stage?
  191. Tube Socket Mounting - rigid or floating
  192. SE-9 mod help please
  193. 2a3SE
  194. 20 Watt SE. I had found it.
  195. Ok to exceed Vg2 in triode? (Yes)
  196. Fender Adjustments
  197. Help needed in Bloomington IN
  198. % error for primary resistance
  199. Help Understanding Circuit (grounded grid I/V)
  200. Testing a 70.7v transformer
  201. thyratron?
  202. Tube frontend....
  203. Transformer and Choke Grounding?
  204. El509 Pse
  205. 6550 Safety Question
  206. Jadis Defy 7 : Manual
  207. Melos Ma-111b
  208. Old audio amp change
  209. Need 45 tubes
  210. Jadis Defy 7 : Manual ??
  211. Help for pre-amp and two single-ended finals
  212. Schematic needed:MFA Magus B
  213. Can I remove the input caps?
  214. 807 vs. 1624 tetrode ?
  215. how to make tube amp sound layback and mellow?
  216. Standard tube filament voltages and currents
  217. SE 20W. What tube?
  218. 5687 Linestage behaving odd...
  219. SMPS & tube pre-amp development board.
  220. Question about Melody KT88 amp
  221. Trafomatic Transformer
  222. Diode trick?
  223. Return of the vacuum tube sonic hologram generator
  224. 6V6 ->EL84 with 12AT7?
  225. design for 6336A OTL amp needed
  226. Aikido sound?
  227. Valve preamp
  228. GAS VR Tubes on B+
  229. Measuring Triode-Connected Pentode Curves
  230. 6L6, 12L6 not same tube!
  231. equivilent part numbers for 6K35HF
  232. Is this a start or run cap
  233. 6V6 PP under construction - pics
  234. Is this practical
  235. Idea for a 2 tube 6080 PP amp.
  236. pls tell where to buy core of transformer
  237. 300B amp PS optimization?
  238. Different value for .47uf coupling cap
  239. Old Olympic audio tube amp
  240. What Design to Use?
  241. KT90's anyone using'em ?
  242. What are they?
  243. Replace el34 with 6p3s
  244. Advice on 6V6 push pull Parallel
  245. squealing output transformer
  246. Melos Sha Gold
  247. Ways to Lower B+ in a Tube Rectifed PS
  248. Oregon Electronics D6 HV supplies: info needed please
  249. My version of the Vacuum State FVP5
  250. Diy Tube Phono Preamp

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