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  1. Electro-Vox LA-210 Preamp; tube
  2. why so CHEAP!?
  3. Antique Electronic Supply
  4. Best Use For My Sansui Iron?
  5. Help on AMC CVT 3030
  6. Heathkit W-5M Red Plate Issue
  7. 1st Post (here) : ) My first project: Boozhound Amp
  8. regulated DC heater supply
  9. Help me pick up some good tubes! Urgent!
  10. CLCRC power supply config
  11. Choke Replacement Question.
  12. What tube instead of 7189
  13. Help on PP EL 34 from Claus Byrith
  14. Datasheet of PTT4 tube?
  15. ready to give up
  16. O-Ring sizes for Tube Dampers
  17. preamp /amp combination question
  18. Strange Transformer Question.....
  19. Audio Note M3/4/5/6/8 schematics
  20. Lundahl LL1540 for SY's heretical?
  21. Henrys
  22. 955 Acorn tubes
  23. Do you know these Ampex mono Amps
  24. Audio Research Resistor Type
  25. What's the best low wattage guitar amp?
  26. volume issues
  27. Need advice for best CCS
  28. confusion in the resistor/capacitor values and B+ supply for the aikido
  29. What are the diferences between these ways of output?
  30. PS for tube preamp
  31. what resistors are in the aikido signal path
  32. clarification of aikido heater supply
  33. Audio Note schematics
  34. Data for PE08/40
  35. PA-060 use
  36. Anode loaded 6080 giving less than unity gain, Why??
  37. Frustration with hum and noise in guitar tube amp
  38. 3/8in thick acrylic - would this make a good chassis?
  39. 6c19p Se?
  40. CF and SRPP in one circuit . .
  41. WE417/437 with battery or RC on cathode
  42. Building a Preamp:Dual Outputs Question
  43. Audio Note Conquest?
  44. metallized caps instead of electrolytics in a tube rectifier power supply?
  45. Power transformer as Parafeed output?
  46. Bogen amp
  47. Noob question about plate load
  48. adjusting gain?
  49. Lowering HT
  50. Kaneda hybrid preamp error ?
  51. Match priorities to schematic & toobs
  52. what do you think of this integrated?
  53. Modified Audio Note M7 Tube Pre Amplifier PCB
  54. lundahl xformers - are they potted?
  55. Beginner's very simple line pre-amp
  56. UX-226 Preamp
  57. Difference between microphones
  58. sv572-30, where to find
  59. E182CC - how to connect heater supply?
  60. Aikido pre tube for Minimum Gain
  61. 14gt8...clipping diodes?
  62. HPHV regulator
  63. Grounded Grid
  64. NYAL Super-It - removing volume pots, what resistor value to replace them?
  65. Another Bogen Conversion
  66. Trouble with my "new" PAS-3 Preamp
  67. Tubalizer, Monica
  68. musical angel modified marantz 7 preamp schematics
  69. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  70. Solder directly on tube?
  71. article in NY Times on Russian tubes
  72. Sovtek's sad tale
  73. audio research LS25 preamp
  74. Schematic needed PL519 Push-Pull Ultra-Linear amp
  75. Use 6C19 in a phono amp?
  76. 6L6 Push pull -- Power tranny question
  77. INPOL technology. Duh.
  78. Transformer problem
  79. Anyone tried a hi-voltage project as their first?
  80. Schematic needed PL519 Class A SE
  81. Giaime's new toy - aka the UniOctal
  82. Critique my circuit?
  83. New EC8010-VT52 Amp
  84. EL84/6BQ5 triode pp with no cathode biasing
  85. EL34 Push Pull in Class A
  86. In search of tube audiophile in Dhaka, Bangladesh
  87. Passive preamp with utc transformers
  88. RGN rectifiers in PSUD2...
  89. Power amp harmonics ?
  90. bypass tone controls on heathkit sp-2
  91. PS Caps
  92. Doubts on cathode stripping in tubes
  93. Edcor amplifier --> 6l6 PP
  94. Welborne labs phono stage needs help, got killed in power surge last night
  95. Huge OPT and small tubes
  96. UTC technology
  97. Luxman 38FD schematic
  98. EL84 PP Diy. Pls help me!!!
  99. Wurlitzer amplifier needs help
  100. Grounding case of 6J5
  101. Tube HW question from a software guy
  102. 12AU7 tube preamplifier schema
  103. "Improved RIAA by Jax"-Power supply help needed!!!
  104. OT Overload question
  105. V76
  106. Application of 6877 ?
  107. First nos tubes
  108. Looking for tube sockets
  109. Input transformers impedance questions
  110. Hybrid amp schema?
  111. Hybrid Cascode ?
  112. Interstage topology question
  113. raccomandation with valve amps
  114. Power Transformers in Output!
  115. How do I design "SCREEN GRID DRIVE"
  116. My El34 SET
  117. Ancient Bogen 807PP Amp-Guitar
  118. Schematic needed 811a Class A2
  119. Power transformer from Tek545 'oscope
  120. Agape Audio Labs
  121. ETF06 - A century of good sound
  122. I completed my amp!
  123. Overload recovery
  124. Converting SS eq. to Tube
  125. oscillation
  126. Tube preamp with: 1V in and 15Vout???
  127. Electrolytic Cap Search
  128. Bibster's 5687 Linestage, the return
  129. Anyone know anything about Morreto amps?
  130. Determining Output Power
  131. Turn on static?
  132. Estimate power transformer current rate?
  133. Control grid Voltage / grid stoppers...
  134. Horizontal TV tubes used in amplifier?
  135. tube sterio preamp complete
  136. Cons for using instrumentation tube PS for project amp...
  137. Svetlanas site down?
  138. Calculations for new Power transformer
  139. Mullard CV4015 info?
  140. SMPS for tube amp?
  141. Pentode Push-Pull
  142. LL1660S Anomaly
  143. DIY Hybrid poweramp noise and hum problem
  144. tube questions
  145. Problems w/biasing a lC50
  146. Big Honkin Tele
  147. Tube DIY store
  148. Pronouced 300B amp Midrange
  149. Tube preamp with current mirror
  150. Transformer Coupling and Headphones? (Toob Noob)
  151. Who can explain the source of this Siemens 12AU7
  152. how does one tell when a tube is truely dead?
  153. A curious observation
  154. Help choosing capacitor value?
  155. Neon Power?
  156. The rectifier from hell, a little story.
  157. a directly heated monkey?
  158. 6l6gc SET, my first DIY
  159. SE Output Transformer Matching
  160. power tube biasing
  161. Jupiters: Tolerance: 26% over spec: o.k.?
  162. Help! 6DJ8 Tube Buffer Schematics
  163. Output Transformers for an EL84 Push-Pull Amp
  164. Advice regarding philips/mullard EL34
  165. 300b based monoblock plans
  166. need help for Marshall PCB
  167. Marshall schematic ?
  168. counterpoint Sa 5.1
  169. Help with bogen CH8
  170. where do you get those schematics / layouts?
  171. Spice 3f4 model of a low voltage direct heated signal level pentode
  172. ECC82
  173. Major diff between 12AX7 and 12AU7
  174. Voltage doubler question
  175. el34 instead of 6550
  176. Bogen CH8
  177. Ah Njoe Tjoeb 4000 problem
  178. my last project
  179. TIP50 voltage regulator
  180. Collets for 212 pins
  181. K-12M Enclosure + Upgrades. Finished!
  182. Will this work?
  183. Big tube - what is it?
  184. Help! no signal! Marshall JTM60
  185. PSU topology & regulator
  186. Dynaco from scratch
  187. 6HV5A Single Ended Amp
  188. Cheap but not too much !
  189. Quick Output Transformer Question
  190. Help with guitar tube amp mods
  191. strange thing with AMC 2030
  192. GE6072 replacement tube
  193. Counterpoint 5.1 preamp
  194. Tube library
  195. RIAA recording on CD
  196. Old SE transformer measuring?
  197. Speakers for tube amps...
  198. MF x10v3
  199. Free Tube Books.....
  200. A Transformer question
  201. 6v6 PP - No sound
  202. help with interstage needed
  203. Hum in Speakers
  204. Just another PP...
  205. Leak Stereo 20 questions
  206. 10M45 CCS, what am I doing wrong ?
  207. Various transformers
  208. tubes sound
  209. Power supply help!
  210. KR Tubes
  211. Bi-amp Between Tube, and SS
  212. 2 Tube questions,
  213. my biggest project ever , need lotsa help plz
  214. tube temperatures
  215. hh scott bias issues
  216. B+ required w/ ccs load
  217. Info re Soundtech powerone tube amp
  218. Verdier Regulated Power Supply
  219. 6DJ8/ECC88 mu-follower
  220. Tube Compressor
  221. Newbie PSU question
  222. Hickok Cardmatic tube tester cards
  223. Hashimoto SE Output Transformer
  224. Ripple and chokes
  225. Tubes driven by BJT's
  226. Red LED substitution questions
  227. Hytron big 71A
  228. Need some help for 6L6 amp
  229. 802 as an audio output tube
  230. Changing 6DJ8 SRPP stage gain
  231. Cooling In Cab / Minimum Vent Area?
  232. Tube voltage help
  233. MF XPre troubleshooting
  234. Giaime's Preamp Finished!!!
  235. Circuit and PCB Layout comments
  236. 4613 triode
  237. Help with inverter CCS+NFB
  238. Question about KT 88 integrated
  239. The Trials, and Tribulations of Bias
  240. Which components should be matched?
  241. Using PP output for SE?
  242. Tube Newbee Needing Guidance
  243. 12A/71A SET project
  244. 805 SE amplifier
  245. Playing with screen resistors
  246. Interpret this 12ax7 feedback loop
  247. Low voltage-drop CCS for LTP input stage?
  248. Tube Socket Mounting - rigid or floating
  249. SE-9 mod help please
  250. 2a3SE

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