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  1. R-core xformers from China
  2. Counterpoint Service manual wanted
  3. Two chokes in one pot?
  4. help with a transformer
  5. 311T (211 alike) HIGH power triode
  6. Re-attaching anode cap to 805 or 811A tube
  7. "Fisher Doctor"
  8. Aikido + class D in the output stage
  9. tube-shop-com
  10. Ultrasonic heaters
  11. Grounding the Filament Winding
  12. Lundahl LL1680 for balanced output
  13. Website is back & new books posted
  14. strange tube G1 S/5
  15. First Tube Amp Needs an Overhaul
  16. pspice models for tubes
  17. Source for iron cores?
  18. Quad EL84 SE question
  19. Use of 12j1l and gu-50 tubes
  20. Shuguang 300B-98C
  21. Philips AG-9016 Upgrades???
  22. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  23. tube amp in a PCB with a toroidal xformer beside it?
  24. Need advice running 220v in USA
  25. Parallel-Push-Pull KT66 organ amp conversion ???
  26. new on tubes
  27. Balance 5687 pre-amp any advise??
  28. The Limitations of an EL34 in UL
  29. Source for tube bases....?
  30. 10Y, 26, 27 and 45: relative microphonics
  31. KT77 Mod Question/Idea/Punshishment
  32. KT88 SE with Edcor xfrmr
  33. Diy Distortion Pedal
  34. 45 fans expanded horizons upstream?
  35. 12B4a Cathode Follower
  36. Hybrid voltage doubler using tube and diode
  37. Finally finished my first tube amp!
  38. advice on an EL84 Push pull Amp schematic
  39. Vintage radio
  40. Look for 12AU7 Preamp Circuit .
  41. PSU question? Going tube rectified
  42. PSU Rebuild Help Pleas
  43. Screeching tubes
  44. help in adjusting Vout in the power supply of the "Brute force in a line stage" by Er
  45. Fisher 800 restoration
  46. stern's ecl86 amp
  47. Look for Western Electric KS-16547-L1 circuit diagram
  48. Help about grommes 500C
  49. Dynaco MK III with 6146A tubes.
  50. Volume pot for Musical Fidelity F22 pre amp.
  51. Don't you just hate it when
  52. Bogen 8417 tube conversion..?
  53. How to Build Unbilical from PS to Phono
  54. Class A SET preamp, help
  55. Grounding MFA Luminescence
  56. custom transformer manufacturers (potted if possible)
  57. To Recap - A Question
  58. KT 44 anyone tried these
  59. unfamiliar tube brand
  60. power supply schematic with a 6080 used as a "pass tube"
  61. why so CHEAP!?
  62. Antique Electronic Supply
  63. Best Use For My Sansui Iron?
  64. Help on AMC CVT 3030
  65. Heathkit W-5M Red Plate Issue
  66. 1st Post (here) : ) My first project: Boozhound Amp
  67. regulated DC heater supply
  68. Help me pick up some good tubes! Urgent!
  69. CLCRC power supply config
  70. Choke Replacement Question.
  71. What tube instead of 7189
  72. Help on PP EL 34 from Claus Byrith
  73. Datasheet of PTT4 tube?
  74. ready to give up
  75. O-Ring sizes for Tube Dampers
  76. preamp /amp combination question
  77. Strange Transformer Question.....
  78. Audio Note M3/4/5/6/8 schematics
  79. Lundahl LL1540 for SY's heretical?
  80. Henrys
  81. 955 Acorn tubes
  82. Do you know these Ampex mono Amps
  83. Audio Research Resistor Type
  84. volume issues
  85. Need advice for best CCS
  86. confusion in the resistor/capacitor values and B+ supply for the aikido
  87. What are the diferences between these ways of output?
  88. PS for tube preamp
  89. what resistors are in the aikido signal path
  90. clarification of aikido heater supply
  91. Audio Note schematics
  92. Data for PE08/40
  93. PA-060 use
  94. Anode loaded 6080 giving less than unity gain, Why??
  95. 3/8in thick acrylic - would this make a good chassis?
  96. 6c19p Se?
  97. CF and SRPP in one circuit . .
  98. WE417/437 with battery or RC on cathode
  99. Building a Preamp:Dual Outputs Question
  100. Audio Note Conquest?
  101. Power transformer as Parafeed output?
  102. Bogen amp
  103. Noob question about plate load
  104. adjusting gain?
  105. Lowering HT
  106. Kaneda hybrid preamp error ?
  107. Match priorities to schematic & toobs
  108. what do you think of this integrated?
  109. Modified Audio Note M7 Tube Pre Amplifier PCB
  110. lundahl xformers - are they potted?
  111. Beginner's very simple line pre-amp
  112. UX-226 Preamp
  113. Difference between microphones
  114. sv572-30, where to find
  115. E182CC - how to connect heater supply?
  116. Aikido pre tube for Minimum Gain
  117. 14gt8...clipping diodes?
  118. HPHV regulator
  119. Grounded Grid
  120. NYAL Super-It - removing volume pots, what resistor value to replace them?
  121. Another Bogen Conversion
  122. Trouble with my "new" PAS-3 Preamp
  123. Tubalizer, Monica
  124. musical angel modified marantz 7 preamp schematics
  125. Can anyone suggest the "best" 300B SE sound quality schematic for a beginner like me?
  126. Solder directly on tube?
  127. article in NY Times on Russian tubes
  128. Sovtek's sad tale
  129. audio research LS25 preamp
  130. Schematic needed PL519 Push-Pull Ultra-Linear amp
  131. Use 6C19 in a phono amp?
  132. 6L6 Push pull -- Power tranny question
  133. INPOL technology. Duh.
  134. Transformer problem
  135. Anyone tried a hi-voltage project as their first?
  136. Schematic needed PL519 Class A SE
  137. Giaime's new toy - aka the UniOctal
  138. Critique my circuit?
  139. New EC8010-VT52 Amp
  140. EL84/6BQ5 triode pp with no cathode biasing
  141. EL34 Push Pull in Class A
  142. In search of tube audiophile in Dhaka, Bangladesh
  143. Passive preamp with utc transformers
  144. RGN rectifiers in PSUD2...
  145. Power amp harmonics ?
  146. bypass tone controls on heathkit sp-2
  147. Doubts on cathode stripping in tubes
  148. Edcor amplifier --> 6l6 PP
  149. Welborne labs phono stage needs help, got killed in power surge last night
  150. Huge OPT and small tubes
  151. UTC technology
  152. Luxman 38FD schematic
  153. EL84 PP Diy. Pls help me!!!
  154. Grounding case of 6J5
  155. Tube HW question from a software guy
  156. 12AU7 tube preamplifier schema
  157. "Improved RIAA by Jax"-Power supply help needed!!!
  158. OT Overload question
  159. V76
  160. Application of 6877 ?
  161. First nos tubes
  162. Looking for tube sockets
  163. Input transformers impedance questions
  164. Hybrid amp schema?
  165. Hybrid Cascode ?
  166. Interstage topology question
  167. raccomandation with valve amps
  168. Power Transformers in Output!
  169. How do I design "SCREEN GRID DRIVE"
  170. My El34 SET
  171. Schematic needed 811a Class A2
  172. Power transformer from Tek545 'oscope
  173. Agape Audio Labs
  174. ETF06 - A century of good sound
  175. I completed my amp!
  176. Overload recovery
  177. Converting SS eq. to Tube
  178. oscillation
  179. Tube preamp with: 1V in and 15Vout???
  180. Bibster's 5687 Linestage, the return
  181. Anyone know anything about Morreto amps?
  182. Determining Output Power
  183. Turn on static?
  184. Estimate power transformer current rate?
  185. Control grid Voltage / grid stoppers...
  186. Horizontal TV tubes used in amplifier?
  187. tube sterio preamp complete
  188. Cons for using instrumentation tube PS for project amp...
  189. Svetlanas site down?
  190. Calculations for new Power transformer
  191. Mullard CV4015 info?
  192. SMPS for tube amp?
  193. Pentode Push-Pull
  194. LL1660S Anomaly
  195. DIY Hybrid poweramp noise and hum problem
  196. tube questions
  197. Problems w/biasing a lC50
  198. Big Honkin Tele
  199. Tube DIY store
  200. Pronouced 300B amp Midrange
  201. Tube preamp with current mirror
  202. Transformer Coupling and Headphones? (Toob Noob)
  203. Who can explain the source of this Siemens 12AU7
  204. how does one tell when a tube is truely dead?
  205. A curious observation
  206. Help choosing capacitor value?
  207. Neon Power?
  208. The rectifier from hell, a little story.
  209. a directly heated monkey?
  210. 6l6gc SET, my first DIY
  211. SE Output Transformer Matching
  212. power tube biasing
  213. Jupiters: Tolerance: 26% over spec: o.k.?
  214. Help! 6DJ8 Tube Buffer Schematics
  215. Output Transformers for an EL84 Push-Pull Amp
  216. Advice regarding philips/mullard EL34
  217. 300b based monoblock plans
  218. counterpoint Sa 5.1
  219. Help with bogen CH8
  220. where do you get those schematics / layouts?
  221. Spice 3f4 model of a low voltage direct heated signal level pentode
  222. ECC82
  223. Major diff between 12AX7 and 12AU7
  224. el34 instead of 6550
  225. Bogen CH8
  226. Ah Njoe Tjoeb 4000 problem
  227. my last project
  228. TIP50 voltage regulator
  229. Collets for 212 pins
  230. K-12M Enclosure + Upgrades. Finished!
  231. Will this work?
  232. Big tube - what is it?
  233. PSU topology & regulator
  234. Dynaco from scratch
  235. 6HV5A Single Ended Amp
  236. Cheap but not too much !
  237. Quick Output Transformer Question
  238. strange thing with AMC 2030
  239. GE6072 replacement tube
  240. Counterpoint 5.1 preamp
  241. Tube library
  242. RIAA recording on CD
  243. Old SE transformer measuring?
  244. Speakers for tube amps...
  245. MF x10v3
  246. Free Tube Books.....
  247. A Transformer question
  248. 6v6 PP - No sound
  249. help with interstage needed
  250. Hum in Speakers

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