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  1. why so CHEAP!?
  2. Antique Electronic Supply
  3. Best Use For My Sansui Iron?
  4. Help on AMC CVT 3030
  5. Heathkit W-5M Red Plate Issue
  6. 1st Post (here) : ) My first project: Boozhound Amp
  7. regulated DC heater supply
  8. Help me pick up some good tubes! Urgent!
  9. CLCRC power supply config
  10. Choke Replacement Question.
  11. What tube instead of 7189
  12. Help on PP EL 34 from Claus Byrith
  13. Datasheet of PTT4 tube?
  14. ready to give up
  15. O-Ring sizes for Tube Dampers
  16. preamp /amp combination question
  17. Strange Transformer Question.....
  18. Audio Note M3/4/5/6/8 schematics
  19. Lundahl LL1540 for SY's heretical?
  20. Henrys
  21. 955 Acorn tubes
  22. Do you know these Ampex mono Amps
  23. Audio Research Resistor Type
  24. volume issues
  25. Need advice for best CCS
  26. confusion in the resistor/capacitor values and B+ supply for the aikido
  27. What are the diferences between these ways of output?
  28. PS for tube preamp
  29. what resistors are in the aikido signal path
  30. clarification of aikido heater supply
  31. Audio Note schematics
  32. Data for PE08/40
  33. PA-060 use
  34. Anode loaded 6080 giving less than unity gain, Why??
  35. 3/8in thick acrylic - would this make a good chassis?
  36. 6c19p Se?
  37. CF and SRPP in one circuit . .
  38. WE417/437 with battery or RC on cathode
  39. Building a Preamp:Dual Outputs Question
  40. Audio Note Conquest?
  41. Power transformer as Parafeed output?
  42. Bogen amp
  43. Noob question about plate load
  44. adjusting gain?
  45. Lowering HT
  46. Kaneda hybrid preamp error ?
  47. Match priorities to schematic & toobs
  48. what do you think of this integrated?
  49. Modified Audio Note M7 Tube Pre Amplifier PCB
  50. lundahl xformers - are they potted?
  51. Beginner's very simple line pre-amp
  52. UX-226 Preamp
  53. Difference between microphones
  54. sv572-30, where to find
  55. E182CC - how to connect heater supply?
  56. Aikido pre tube for Minimum Gain
  57. 14gt8...clipping diodes?
  58. HPHV regulator
  59. Grounded Grid
  60. NYAL Super-It - removing volume pots, what resistor value to replace them?
  61. Another Bogen Conversion
  62. Trouble with my "new" PAS-3 Preamp
  63. Tubalizer, Monica
  64. musical angel modified marantz 7 preamp schematics
  65. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  66. Solder directly on tube?
  67. article in NY Times on Russian tubes
  68. Sovtek's sad tale
  69. audio research LS25 preamp
  70. Schematic needed PL519 Push-Pull Ultra-Linear amp
  71. Use 6C19 in a phono amp?
  72. 6L6 Push pull -- Power tranny question
  73. INPOL technology. Duh.
  74. Transformer problem
  75. Anyone tried a hi-voltage project as their first?
  76. Schematic needed PL519 Class A SE
  77. Giaime's new toy - aka the UniOctal
  78. Critique my circuit?
  79. New EC8010-VT52 Amp
  80. EL84/6BQ5 triode pp with no cathode biasing
  81. EL34 Push Pull in Class A
  82. In search of tube audiophile in Dhaka, Bangladesh
  83. Passive preamp with utc transformers
  84. RGN rectifiers in PSUD2...
  85. Power amp harmonics ?
  86. bypass tone controls on heathkit sp-2
  87. Doubts on cathode stripping in tubes
  88. Edcor amplifier --> 6l6 PP
  89. Welborne labs phono stage needs help, got killed in power surge last night
  90. Huge OPT and small tubes
  91. UTC technology
  92. Luxman 38FD schematic
  93. EL84 PP Diy. Pls help me!!!
  94. Grounding case of 6J5
  95. Tube HW question from a software guy
  96. 12AU7 tube preamplifier schema
  97. "Improved RIAA by Jax"-Power supply help needed!!!
  98. OT Overload question
  99. V76
  100. Application of 6877 ?
  101. First nos tubes
  102. Looking for tube sockets
  103. Input transformers impedance questions
  104. Hybrid amp schema?
  105. Hybrid Cascode ?
  106. Interstage topology question
  107. raccomandation with valve amps
  108. Power Transformers in Output!
  109. How do I design "SCREEN GRID DRIVE"
  110. My El34 SET
  111. Schematic needed 811a Class A2
  112. Power transformer from Tek545 'oscope
  113. Agape Audio Labs
  114. ETF06 - A century of good sound
  115. I completed my amp!
  116. Overload recovery
  117. Converting SS eq. to Tube
  118. oscillation
  119. Tube preamp with: 1V in and 15Vout???
  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. counterpoint Sa 5.1
  159. Help with bogen CH8
  160. where do you get those schematics / layouts?
  161. Spice 3f4 model of a low voltage direct heated signal level pentode
  162. ECC82
  163. Major diff between 12AX7 and 12AU7
  164. el34 instead of 6550
  165. Bogen CH8
  166. Ah Njoe Tjoeb 4000 problem
  167. my last project
  168. TIP50 voltage regulator
  169. Collets for 212 pins
  170. K-12M Enclosure + Upgrades. Finished!
  171. Will this work?
  172. Big tube - what is it?
  173. PSU topology & regulator
  174. Dynaco from scratch
  175. 6HV5A Single Ended Amp
  176. Cheap but not too much !
  177. Quick Output Transformer Question
  178. strange thing with AMC 2030
  179. GE6072 replacement tube
  180. Counterpoint 5.1 preamp
  181. Tube library
  182. RIAA recording on CD
  183. Old SE transformer measuring?
  184. Speakers for tube amps...
  185. MF x10v3
  186. Free Tube Books.....
  187. A Transformer question
  188. 6v6 PP - No sound
  189. help with interstage needed
  190. Hum in Speakers
  191. Just another PP...
  192. Leak Stereo 20 questions
  193. 10M45 CCS, what am I doing wrong ?
  194. Various transformers
  195. tubes sound
  196. Power supply help!
  197. KR Tubes
  198. Bi-amp Between Tube, and SS
  199. 2 Tube questions,
  200. my biggest project ever , need lotsa help plz
  201. tube temperatures
  202. hh scott bias issues
  203. B+ required w/ ccs load
  204. Info re Soundtech powerone tube amp
  205. Verdier Regulated Power Supply
  206. 6DJ8/ECC88 mu-follower
  207. Newbie PSU question
  208. Hashimoto SE Output Transformer
  209. Ripple and chokes
  210. Tubes driven by BJT's
  211. Red LED substitution questions
  212. Hytron big 71A
  213. Need some help for 6L6 amp
  214. 802 as an audio output tube
  215. Changing 6DJ8 SRPP stage gain
  216. Cooling In Cab / Minimum Vent Area?
  217. Tube voltage help
  218. MF XPre troubleshooting
  219. Giaime's Preamp Finished!!!
  220. Circuit and PCB Layout comments
  221. 4613 triode
  222. Help with inverter CCS+NFB
  223. Question about KT 88 integrated
  224. The Trials, and Tribulations of Bias
  225. Which components should be matched?
  226. Using PP output for SE?
  227. Tube Newbee Needing Guidance
  228. 12A/71A SET project
  229. 805 SE amplifier
  230. Playing with screen resistors
  231. Interpret this 12ax7 feedback loop
  232. Low voltage-drop CCS for LTP input stage?
  233. Tube Socket Mounting - rigid or floating
  234. SE-9 mod help please
  235. 2a3SE
  236. 20 Watt SE. I had found it.
  237. Ok to exceed Vg2 in triode? (Yes)
  238. Help needed in Bloomington IN
  239. % error for primary resistance
  240. Help Understanding Circuit (grounded grid I/V)
  241. Testing a 70.7v transformer
  242. thyratron?
  243. Tube frontend....
  244. Transformer and Choke Grounding?
  245. El509 Pse
  246. 6550 Safety Question
  247. Jadis Defy 7 : Manual
  248. Melos Ma-111b
  249. Old audio amp change
  250. Need 45 tubes

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