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  1. What's the best low wattage guitar amp?
  2. volume issues
  3. Need advice for best CCS
  4. confusion in the resistor/capacitor values and B+ supply for the aikido
  5. What are the diferences between these ways of output?
  6. PS for tube preamp
  7. what resistors are in the aikido signal path
  8. clarification of aikido heater supply
  9. Audio Note schematics
  10. Data for PE08/40
  11. PA-060 use
  12. Anode loaded 6080 giving less than unity gain, Why??
  13. Frustration with hum and noise in guitar tube amp
  14. 3/8in thick acrylic - would this make a good chassis?
  15. 6c19p Se?
  16. CF and SRPP in one circuit . .
  17. WE417/437 with battery or RC on cathode
  18. Building a Preamp:Dual Outputs Question
  19. Audio Note Conquest?
  20. metallized caps instead of electrolytics in a tube rectifier power supply?
  21. Power transformer as Parafeed output?
  22. Bogen amp
  23. Noob question about plate load
  24. adjusting gain?
  25. Lowering HT
  26. Kaneda hybrid preamp error ?
  27. Match priorities to schematic & toobs
  28. what do you think of this integrated?
  29. Modified Audio Note M7 Tube Pre Amplifier PCB
  30. lundahl xformers - are they potted?
  31. Beginner's very simple line pre-amp
  32. UX-226 Preamp
  33. Difference between microphones
  34. sv572-30, where to find
  35. E182CC - how to connect heater supply?
  36. Aikido pre tube for Minimum Gain
  37. 14gt8...clipping diodes?
  38. HPHV regulator
  39. Grounded Grid
  40. NYAL Super-It - removing volume pots, what resistor value to replace them?
  41. Another Bogen Conversion
  42. Trouble with my "new" PAS-3 Preamp
  43. Tubalizer, Monica
  44. musical angel modified marantz 7 preamp schematics
  45. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  46. Solder directly on tube?
  47. article in NY Times on Russian tubes
  48. Sovtek's sad tale
  49. audio research LS25 preamp
  50. Schematic needed PL519 Push-Pull Ultra-Linear amp
  51. Use 6C19 in a phono amp?
  52. 6L6 Push pull -- Power tranny question
  53. INPOL technology. Duh.
  54. Transformer problem
  55. Anyone tried a hi-voltage project as their first?
  56. Schematic needed PL519 Class A SE
  57. Giaime's new toy - aka the UniOctal
  58. Critique my circuit?
  59. New EC8010-VT52 Amp
  60. EL84/6BQ5 triode pp with no cathode biasing
  61. EL34 Push Pull in Class A
  62. In search of tube audiophile in Dhaka, Bangladesh
  63. Passive preamp with utc transformers
  64. RGN rectifiers in PSUD2...
  65. Power amp harmonics ?
  66. bypass tone controls on heathkit sp-2
  67. PS Caps
  68. Doubts on cathode stripping in tubes
  69. Edcor amplifier --> 6l6 PP
  70. Welborne labs phono stage needs help, got killed in power surge last night
  71. Huge OPT and small tubes
  72. UTC technology
  73. Luxman 38FD schematic
  74. EL84 PP Diy. Pls help me!!!
  75. Wurlitzer amplifier needs help
  76. Grounding case of 6J5
  77. Tube HW question from a software guy
  78. 12AU7 tube preamplifier schema
  79. "Improved RIAA by Jax"-Power supply help needed!!!
  80. OT Overload question
  81. V76
  82. Application of 6877 ?
  83. First nos tubes
  84. Looking for tube sockets
  85. Input transformers impedance questions
  86. Hybrid amp schema?
  87. Hybrid Cascode ?
  88. Interstage topology question
  89. raccomandation with valve amps
  90. Power Transformers in Output!
  91. How do I design "SCREEN GRID DRIVE"
  92. My El34 SET
  93. Ancient Bogen 807PP Amp-Guitar
  94. Schematic needed 811a Class A2
  95. Power transformer from Tek545 'oscope
  96. Agape Audio Labs
  97. ETF06 - A century of good sound
  98. I completed my amp!
  99. Overload recovery
  100. Converting SS eq. to Tube
  101. oscillation
  102. Tube preamp with: 1V in and 15Vout???
  103. Electrolytic Cap Search
  104. Bibster's 5687 Linestage, the return
  105. Anyone know anything about Morreto amps?
  106. Determining Output Power
  107. Turn on static?
  108. Estimate power transformer current rate?
  109. Control grid Voltage / grid stoppers...
  110. Horizontal TV tubes used in amplifier?
  111. tube sterio preamp complete
  112. Cons for using instrumentation tube PS for project amp...
  113. Svetlanas site down?
  114. Calculations for new Power transformer
  115. Mullard CV4015 info?
  116. SMPS for tube amp?
  117. Pentode Push-Pull
  118. LL1660S Anomaly
  119. DIY Hybrid poweramp noise and hum problem
  120. tube questions
  121. Problems w/biasing a lC50
  122. Big Honkin Tele
  123. Tube DIY store
  124. Pronouced 300B amp Midrange
  125. Tube preamp with current mirror
  126. Transformer Coupling and Headphones? (Toob Noob)
  127. Who can explain the source of this Siemens 12AU7
  128. how does one tell when a tube is truely dead?
  129. A curious observation
  130. Help choosing capacitor value?
  131. Neon Power?
  132. The rectifier from hell, a little story.
  133. a directly heated monkey?
  134. 6l6gc SET, my first DIY
  135. SE Output Transformer Matching
  136. power tube biasing
  137. Jupiters: Tolerance: 26% over spec: o.k.?
  138. Help! 6DJ8 Tube Buffer Schematics
  139. Output Transformers for an EL84 Push-Pull Amp
  140. Advice regarding philips/mullard EL34
  141. 300b based monoblock plans
  142. need help for Marshall PCB
  143. Marshall schematic ?
  144. counterpoint Sa 5.1
  145. Help with bogen CH8
  146. where do you get those schematics / layouts?
  147. Spice 3f4 model of a low voltage direct heated signal level pentode
  148. ECC82
  149. Major diff between 12AX7 and 12AU7
  150. Voltage doubler question
  151. el34 instead of 6550
  152. Bogen CH8
  153. Ah Njoe Tjoeb 4000 problem
  154. my last project
  155. TIP50 voltage regulator
  156. Collets for 212 pins
  157. K-12M Enclosure + Upgrades. Finished!
  158. Will this work?
  159. Big tube - what is it?
  160. Help! no signal! Marshall JTM60
  161. PSU topology & regulator
  162. Dynaco from scratch
  163. 6HV5A Single Ended Amp
  164. Cheap but not too much !
  165. Quick Output Transformer Question
  166. Help with guitar tube amp mods
  167. strange thing with AMC 2030
  168. GE6072 replacement tube
  169. Counterpoint 5.1 preamp
  170. Tube library
  171. RIAA recording on CD
  172. Old SE transformer measuring?
  173. Speakers for tube amps...
  174. MF x10v3
  175. Free Tube Books.....
  176. A Transformer question
  177. 6v6 PP - No sound
  178. help with interstage needed
  179. Hum in Speakers
  180. Just another PP...
  181. Leak Stereo 20 questions
  182. 10M45 CCS, what am I doing wrong ?
  183. Various transformers
  184. tubes sound
  185. Power supply help!
  186. KR Tubes
  187. Bi-amp Between Tube, and SS
  188. 2 Tube questions,
  189. my biggest project ever , need lotsa help plz
  190. tube temperatures
  191. hh scott bias issues
  192. B+ required w/ ccs load
  193. Info re Soundtech powerone tube amp
  194. Verdier Regulated Power Supply
  195. 6DJ8/ECC88 mu-follower
  196. Tube Compressor
  197. Newbie PSU question
  198. Hickok Cardmatic tube tester cards
  199. Hashimoto SE Output Transformer
  200. Ripple and chokes
  201. Tubes driven by BJT's
  202. Red LED substitution questions
  203. Hytron big 71A
  204. Need some help for 6L6 amp
  205. 802 as an audio output tube
  206. Changing 6DJ8 SRPP stage gain
  207. Cooling In Cab / Minimum Vent Area?
  208. Tube voltage help
  209. MF XPre troubleshooting
  210. Giaime's Preamp Finished!!!
  211. Circuit and PCB Layout comments
  212. 4613 triode
  213. Help with inverter CCS+NFB
  214. Question about KT 88 integrated
  215. The Trials, and Tribulations of Bias
  216. Which components should be matched?
  217. Using PP output for SE?
  218. Tube Newbee Needing Guidance
  219. 12A/71A SET project
  220. 805 SE amplifier
  221. Playing with screen resistors
  222. Interpret this 12ax7 feedback loop
  223. Low voltage-drop CCS for LTP input stage?
  224. Tube Socket Mounting - rigid or floating
  225. SE-9 mod help please
  226. 2a3SE
  227. 20 Watt SE. I had found it.
  228. Ok to exceed Vg2 in triode? (Yes)
  229. Fender Adjustments
  230. Help needed in Bloomington IN
  231. % error for primary resistance
  232. Help Understanding Circuit (grounded grid I/V)
  233. Testing a 70.7v transformer
  234. thyratron?
  235. Tube frontend....
  236. Transformer and Choke Grounding?
  237. El509 Pse
  238. 6550 Safety Question
  239. Jadis Defy 7 : Manual
  240. Melos Ma-111b
  241. Old audio amp change
  242. Need 45 tubes
  243. Jadis Defy 7 : Manual ??
  244. Help for pre-amp and two single-ended finals
  245. Schematic needed:MFA Magus B
  246. Can I remove the input caps?
  247. 807 vs. 1624 tetrode ?
  248. how to make tube amp sound layback and mellow?
  249. Standard tube filament voltages and currents
  250. SE 20W. What tube?

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