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  1. Outer foil k40y-9
  2. sansui 1000a maintenance
  3. filter cap question
  4. add UL tap for 125ese
  5. Bogen D070 Amp - HELP w/ INFO.
  6. Humming asl 2004dt wave pre amp
  7. Cany anyone supply any info. about this amplifier?
  8. Low voltage 845SE with 300B driver
  9. Cabinet Help!!!!
  10. dc heater supply help
  11. gu-29 tube
  12. LTP question
  13. Over 500V rated electrolytics?
  14. Fireplug? (inline fuse)
  15. Help! Flash-over on my amp :-(
  16. 6550 drive question
  17. 4211D Amp?
  18. Please, reccomand me about 7233 GE NOS
  19. Help! Schematic Conrad Johnson Premier 3
  20. Tubelab SE in parallel?
  21. Just an Idea?
  22. Tried this out, but needs more gain. . .
  23. EL34 Power Stage
  24. Daven Question
  25. How many rectifiers can have mesh plates?
  26. Real Quick Question!!
  27. Wattage of vintage resistors ?
  28. What is the signal path -- the red line?
  29. Hi-end definitive vacuum tube phono pre
  30. Resistors for Stepped Attenuator
  31. dual rectifier clone....
  32. Motorola Console Salvage
  33. single endedtransformer coupled 6sn7 mic preamp
  34. Brett's 12B4 schematic?
  35. insulated turret terminals
  36. Building first tube power amplifier, reccomendations?
  37. Can you use a MOSFET as a cathodyne
  38. Resolving cold midrange in 5687 circuit
  39. 829B SE Comments????
  40. Shielding and regulator location in the KTA 26 preamp
  41. Voice of music, antique or reproduction?
  42. Quick Question - Audio Note M1 or AR SP-6?
  43. Red Light District/Baby Huey (EL84 P-P) Output Iron
  44. help with PSE design
  45. Tantalum VS CC & metalfilm
  46. Rise-time question
  47. Have an odd problem with my Aikido.
  48. Weird Hybrid Splitter (equal impedances?)
  49. Tube 6550 to test
  50. Using semiconductor curvetracer for tubes...
  51. Question regarding 3rd wire grounding and safety
  52. Plate Current VS Plate Voltage Graphs
  53. Toggle Switch Contact Type and Rating
  54. Inside information on Shuguang
  55. 6N6P vs. 6N6P-I
  56. Technical Survey Paper -- Need Some Help!
  57. VOLTAGE DOUBLER : drop in current?
  58. Using genetic algorithms to optimize pentode parameters
  59. Favorite size wire for signal wiring?
  60. Any idea what this thing is?
  61. Breadboarding Poindexter's 6GK5/EL34 Music Machine
  62. anyone ever use el86/6cw5?
  63. bad 5ar4?
  64. 6DJ8 biasing question
  65. Is it worth using anything other than DHTs for preamps?
  66. Billington Export Ltd Tubes?
  67. 845SE : comments on this circuit?
  68. Tip-Restoring Vintage Pot
  69. B+ Delay - Is this a problem?
  70. Toroids in SET
  71. I have to sell my Pyramid-V prototype...
  72. Stealing a preamp
  73. OLD GOLD, or something I can dissassemble and use
  74. CF PP design
  75. Preamp Idea
  76. Metal Oxide Screen Stoppers
  77. Splitting up power supply inductance
  78. Back to Back transformers and safety ground
  79. Vintage tube tester
  80. 7 pin ECC81.
  81. 26 Driver Tube for 45 - Operating Points
  82. My New pre-amplifier£¡
  83. Echocord Super Question
  84. High quality matching panel meters?
  85. 6BY5GA question
  86. Seeking schematic for Conn organ amp
  87. Will this work as a differential stage?
  88. Tube ID and suggestions
  89. 6L6 to EL34 conversion
  90. my saturation test ??
  91. DO-35 diode inside vacuum tube ?
  92. Transformer Polarity
  93. Where to go for tube gear in Hong Kong?
  94. EL84 Shunt reg for pre-amp, 85A1?
  95. Tube Preamp Idea
  96. UTC Linear Standard High Level matching transformers
  97. Manley Compact 160w noise problem -please help
  98. D3a Experimenters Breadboard Project
  99. Dtmm
  100. Running Single Ended 6V6 in Triode Mode
  101. 6v6pp Finished
  102. Stereo Buffer with a single twin triode
  103. Anybody recognize this pentode?
  104. Original schemes of amplifiers for 45 tubes of 1920 and 1930 years?
  105. My new amplifier£_300BSE!
  106. low zout vs output transfo
  107. can't find valve art tube - and glowey tube pic
  108. Which Phono Pre???
  109. BB 1702 DAC + transformer I/V ?
  110. aikido build thread-
  111. Triode Connected 6BK5
  112. need help in building tube amplifier 10 watter
  113. Parasitic oscillations in general
  114. Help Russian tube experts.
  115. forced aircooling
  116. Dirty Cheap Vintage Pot Fix - Your Opinion Please
  117. ask jan first
  118. running 6S4S/6C4C hot .. calling widowmaker
  119. Covi Mark II OTL Help
  120. Volume pot between triodes?
  121. Series Pass Transistor for TL-783
  122. Anyone else have the new Mullard EL34's?
  123. VR tubes in single ended circuits
  124. Transformer for Tube Amps?
  125. "Magga Amp Workshop" builds again (Simple 45 Project)
  126. How to handle Reclaimed Transformers
  127. Dual supply...
  128. How much would this cost/how complicated would this be...
  129. low cost DHT hum pots vendors?
  130. Tube Buffer – question?
  131. Bogen CHB 10A questions
  132. 12B4 Preamp
  133. adding output tubes etc to pre amp
  134. primaluna dialogue 5 and fanboys?
  135. yaqin mc-100b
  136. KT88 in place of 6550?
  137. Tube manaul data sheets
  138. Need a bias supply how??
  139. Wouldn't you just love to have these!. United Electronics 211's
  140. Using single tube of Dual
  141. 21st century tube? Non-Vacuum
  142. making two minibloks for stereo
  143. Lynn Olson Raven Question
  144. Inrush current limiting heater filaments
  145. Tube amp with "meter"?
  146. lytics and choke AFTER regulator
  147. Boosing the power of your existing amp.
  148. Component ID from a 50EH5 Amp
  149. Music Angel KT88 Bridged /Bias problem
  150. Output of preamp drops when overdriven
  151. Choke load calculation...
  152. 807 SE amp schematic
  153. DC Heater Voltage
  154. Choke loading vs. SRPP
  155. Unloaded Power Transformer Current Draw/Janus-Aikido snipet
  156. Need help with tubed output for PCM1793 DAC
  157. Single ended transformer grounding question
  158. Reforming Caps with Variac
  159. First Shot at a 41 SE amp
  160. [Question] Ground Error?
  161. TOMIKO OPT-SE, any good?
  162. 6550 Williamson - Low Bass Response...
  163. Preamp design question
  164. Reading Oscilloscope Traces -For Dummies
  165. Power Supply Question
  166. Altec 1568A modifications for comments and help…. again
  167. H & K Tube 20 unruly gain
  168. Electro-Harmonix interview
  169. Using LED bias for 4.5 mA cathode current, is it a good idea?
  170. amp dead?
  171. 7189 vs EL84 +458v plate
  172. What does your Aikido drive?
  173. Help with Decware SE84 Kit!
  174. Hybrid Amplifier in Small cases
  175. audio mixer with tubes?
  176. Help with KT88 biasing
  177. Bad Schottky??
  178. Aikido Diagnostic
  179. Could this become a Baby Huey killer ?
  180. SV83 vs EL84
  181. KT88 PP-5 Monoblock Amplifier
  182. RE604 SET amp
  183. Dropping rectifier filament voltage
  184. need suggestion about MC pre-pre
  185. New gain stage .. Opinions???
  186. Using SS to augment < 100Hz?
  187. A help with an soviet transformer.
  188. I thought that I had seen everything
  189. Triatic PP-amp with 6p14p
  190. Single 6N6P stereo pre-amp
  191. Tubelab SE input tube filament
  192. high frequency oscillation and decoupling question
  193. Long tailed pair schematic questions
  194. CCS Kit options
  195. Variac Question for Thatch_Ear
  196. 13e1
  197. Rogers Tube Amp
  198. Pair of McIntosh MC-60 on Dallas Craigslist
  199. Lundahl LL1517. What is it good for?
  200. Edcor OPT Voltage Rating?
  201. Which Tube to Start with?
  202. Basic Transformer hookup wiring
  203. Beta followers, biasing.
  204. 6W 2xEL519 Half-hybrid Class-A OTL
  205. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  206. Wiring / Layout question
  207. Yaqin MC10K
  208. help me lower the gain of this preamp pls
  209. How to wiring the transformer
  210. "universal" P-P driver board
  211. series or parallel?
  212. Question about Cathode bias in this Magnavox amp. . .
  213. GK71 B+ turn on delay
  214. Paralleling Triodes in a 6SN7GT
  215. 6C33C-B. PP or SE ?
  216. 6550 Triode B+
  217. Aikido Phono Pre.....any good???
  218. Tube Preamp L&amp;R Channel different current draw
  219. amp is dead!
  220. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  221. Running stereo through a single tube with dual triodes?
  222. Looking for 6AQ5 audio preamp schematic!
  223. Quad KT88 oscillation problem
  224. El86 driving high beta bipolar power tr
  225. Installed 12&quot; Speaker in Pro Jr---Now What??
  226. How do I design a pentode constant current source plate load?
  227. Socket for 6AQ5
  228. new 845? Who produces it?
  229. Looking for a 45 SE Schematic
  230. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  231. Tube Amps left outdoors 24/7
  232. The beast OTL
  233. Input transformer: floating input = distortion
  234. Altmann's Split Feedback concept
  235. preamp for a JE LABS 2A3DX amp
  236. Phase flip needed -Interstage Transformer?
  237. Can your amp do this?
  238. AES out of 1625?
  239. Any info on Haltron 6BL8 tubes?
  240. Need Schematic for 12 Volt Tube Buffer
  241. Input impedance for Simple SE?
  242. SR-101 Pioneer Spring Reverb
  243. Basic Transformer Question - how do I know build possibilities?
  244. Source for 2.5VCT 5A filament transformers
  245. Nichicon VR VZ or GU
  246. Missing 6.3V CT/'Cockeyed Bridge' problem
  247. Best plate voltage for 6dj8 at +-6ma
  248. Max supply voltage for small DHT's
  249. Operating Temperature of KT88?
  250. First Tube Amp

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