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  1. Capacitor from 120VAC to ground
  2. I have power but no sound???
  3. Using a function generator with a tube amp?
  4. What resistors to use on KT88s tubes?
  5. Opinions on Raysonic sp-200 + Raysonic 168 CD
  6. Lab power supply for testing tubes
  7. Could really use some help here!
  8. Help~ GU50 ?
  9. Some Power Supply Help
  10. newbies beware of lampizator srpp pdf
  11. Headphone output
  12. Has anyone played around with this as an amp front end?
  13. Help for Dynavox VR-70E
  14. Heathkit TT-1 (testing a 199, 99 tube)
  15. Tube And Transformer I/V Converter For Differential Current DAC
  16. Volume increases as amp warms up
  17. New 6V6 Build - Suggestions Needed
  18. Tubes Numbers
  19. VTL
  20. Visit to KR audio Prague 20120921
  21. Where did he posted it?
  22. Problems with PT325.2i
  23. What phono preamp with Dynaco MKIII
  24. opinions on supporting a past sale/trade deal
  25. Series connection of regulator tubes
  26. Preamp buzzes when volume is at zero?
  27. Hrrrrmphhhff. PSU design error and how to cope with it
  28. 300B fixed bias specs
  29. Battery filament for 4P1L
  30. Need pro help with this tube amp.
  31. Guitar Amps Output Transformer specs
  32. Need help with UTC transformer
  33. Very interesting 300b design
  34. How to understand the power output in this case?
  35. K12G Help
  36. all dht se PX4
  37. multiple output transformers per channel
  38. What would you change in this schematic? (PP amp)
  39. Anyone know where to get this type of breadboard?
  40. moscode 600 tube recommendations
  41. Should I use two separate OPTs for parallel output tubes?
  42. custom Tube chassis vendor
  43. VLS631 Thermal Delay
  44. 6au6 preamp stage
  45. Recognize this tubes...
  46. need help for my new amp: 6G6G driver & 807 SE
  47. Anyone heard of radiometal for transformer core?
  48. BCF-2
  49. Glowing Plates of Doom
  50. Modding Aikido to non-Aikido such as SRPP?
  51. DN2540 plate load.
  52. Help! Did my power cable blow his tubes?
  53. 211 amp SRPP driver
  54. Tubelab SE problem
  55. tube to replace opamps in cd player
  56. Jolida 302b started to crack/pop once a minute
  57. why it doesn't work - 300B SE power amp
  58. Trio KW-70 schematic also known as WX-400 under kenwood name
  59. New DC to AC to high voltage AC idea?
  60. LED bias for 6N1P driver
  61. DIY tube amp general inquiry
  62. 6as7 Aikido headphone amplifier
  63. Cold tubes in warm amp = smoke?
  64. Keroes: Direct-Coupled amplifier
  65. Tube ID help please.
  66. exactly HOW does a tube amp work? or a vacuum tube?
  67. David Berning's zh-230 - whats going on here?
  68. EICO HF86 scratch build question please
  69. what to do with a 12W 600ohm to 4/8 ohm output transformer?
  70. Telewatt VS71M
  71. Yamamoto 09S 300B SE Amp Problem
  72. Marantz-9
  73. 6V6 amp question
  74. Wood chassis
  75. My first project SE(T) into high end audio.
  76. Supermalloy for the Power transformer?
  77. Can I build a screen reg. with IXYS 10M45?
  78. Modified DynacoMkIV
  79. Refurbising Conrad Johnson Premier One
  80. Would using a 16ohm speaker damage my SE output transformers?
  81. Grommes/PE S-35 questions
  82. Concertina phase inverter with LED bias - is this completely wrong?
  83. Parafeed turn-on delay
  84. I'm looking for 6an8 (as V1) schematics
  85. New Project - EL84 PP and preamp - suggestions welcome
  86. The sound of modern transformers compared with vintage gear
  87. Determining the core cross sectional area, Afe, for SE OPT
  88. HT power supply high?
  89. under-run push pull
  90. 12B4 Linestage Woes
  91. Transcendent Sound Mini-Beast
  92. A Question About Positive Feedback
  93. Help with opera consonance M100plus
  94. Just received 2x PT Choke OT. best implementation ?
  95. Just received 2x PT Choke OT. best implementation ?
  96. Mystery Valve ID
  97. Oddball OT with extra secondary winding
  98. Help with Multi Section Can Cap replacement
  99. 600V bench variable supply to test transmitting valves
  100. Heater-cathode voltage spec interpretation
  101. Tell me why this wont work.
  102. headphone amp for Senns HD600
  103. Transformer orientation and suggestions.
  104. 12AU7 stereo SE mini-amp build!
  105. allen type 20a schematic
  106. 2010 lemon year for EH 6922 tubes
  107. Chinese GU50 PP
  108. Gain, Vpp and attenuation at each stage
  109. 6n14p headphone amp
  110. Heater Lifter
  111. KT88 & 6550 Pentode power output?
  112. Biasing Improved Williamson
  113. Vox V941 active FX Loop - I'm looking for schematics
  114. Lowering the Volume Control on Tube Amps
  115. Got the Hum out!! Thanks All
  116. How hot KT88 get? Anybody take a reading?
  117. Broskie Unbalancer
  118. Phase splitting transformer design
  119. Red plate KT88
  120. 6N16B preamp
  121. Eimac 450th nos
  122. how much clearance above tubes for KT88 enclosure
  123. Cathode preheating???
  124. RIAA Question - Power
  125. Linearity of Red RCA 5692
  126. What gauge enclosure for KT88 AMP?
  127. Output Transformer Issue???
  128. Maggie 8802 placement issue
  129. Can you recommend a tube tester?
  130. 6550 tube protection socket
  131. PT laminations are usable as OT laminations ?
  132. Are These Authentic Russian Military 1578 Vacuum Tubes?
  133. Amp ID Please
  134. Help for Main Transformer Spec for CCDA
  135. Switching SE and balanced inputs/outputs
  136. kt88 PP rectifier.
  137. How much Blue glow is ok?
  138. Recommendations on How To mono a pre amplifier?
  139. 6H6pi curves available?
  140. 1p24b
  141. help, Built from scratch Kalamazoo 2 noise
  142. 5CZ5/5BQ7A single ended amp
  143. Hopefully a simple question.
  144. 211 tube recommendations
  145. Need HELP with TUBE IMP
  146. Another unknown tube
  147. Triode Bias 101
  148. Bogen MO-200A transplant /conversion
  149. 5U4 o bridge rectifier
  150. Choosing the right transformer
  151. V-Cap Help
  152. Older tubes sound better
  153. 6J7 preamp
  154. Menygue mini/music angel amp
  155. Driving a Behringer INuke Nu1000
  156. cathode follower ecc88 on 60volt
  157. Docs for Heathkit AA-23?
  158. 45 tube amp schematic
  159. Old TO-R s15u, Should i fix it?
  160. Tube ID
  161. VTL driver tube question
  162. Fun with junk EL84 SE
  163. Enclosure ideas
  164. Burn in procedure for NOS necessary?
  165. Strange Lorenz ECC81 12AT7
  166. Amplifier first start up; Plays tone of signal generator with no speakers!
  167. Reports of the death of Audiophool have been greatly exaggerated
  168. help me identify some vintage tubes // need suggestions for possible applications!
  169. Lowering cost of audio output transformer
  170. Source for transformers in Europe
  171. morgan Jones HT caps & Anode Loads
  172. Tuning Negative feedback
  173. Hickok reference 6L6 for calibration..
  174. SET-NO FEEDBACK amplifier performance
  175. Stereo class A 6+6W - 2x 6L6G 1 x 6N2P
  176. Console Amplifier Pull:Voltages over Spec
  177. Help! My EL34B based amp arced at full volume.
  178. MUZAK 50's tube amp
  179. Tube break-in?
  180. Custom power tranny specs recommendations for 300B pse monoblocs
  181. mosfet source follower output stage.
  182. Winter upgrade project - new heating unit
  183. 6KM8 amp
  184. Power and output transformers to ground.
  185. Help with this schematic? B+? B++?
  186. What to do with this old amp? suggestions please.
  187. DIY CAT SL1 preamp
  188. Phase inverter, your comments welcomed!
  189. Basic Bias Question for PP Amp
  190. Oddwatt 5751/6550
  191. Please help me to identify Telefunken PCC ...
  192. Modification of 300B SE Amplifier
  193. 300B Tube and Amp Questions
  194. ST70 "Imposter"
  195. cathode follower question
  196. marconi tubes....can someone idntify these
  197. DeathTrap400 : : A Pretty Damn Good 300B Amp
  198. SOS: First Build, Lots of Hum
  199. 1959 Silvertone Syntronic Can Capacitor question
  200. KR Audio Marconi R valve amp?
  201. Distortion
  202. Tung-Sol 6098/6AR6 Substitution
  203. Dropout in RTP3 phono stage
  204. Audio Research EC-3 modification
  205. 300b all-DHT SET
  206. My first tube project !
  207. Trouble with homebuilt amp
  208. Music angel el34b problem
  209. Elecrolytic capacitor reforming
  210. The end of tubes?
  211. Two stages EL34 power amplifier
  212. 7199 replacement in AMPEX 6973
  213. IT coupled tube-SS hybrid amp suggestion- needs development
  214. Original Cary CAD-300se upgrades?
  215. Convert Integrated Tube Preamp to an amplifier
  216. McCurdy AM405 Schematics
  217. Looking for Neumann N149 power supply schematic
  218. B&K model 747 tube tester for EL34
  219. Behringer DEQ2496 for testing amplifiers and preamps frequency response ???
  220. I need datasheet of 8753 tube, help me!
  221. New 6L6GC Project. DC -> LTP
  222. EL84 in UL
  223. 1953 revere amp conversion
  224. Manley transformer specifications
  225. Recommended 300B SE Amplifier Designs
  226. Found a new interstage coupling method (?)
  227. Amplifier Distortion (Northern Electric)
  228. when do filament supplies need to be floated
  229. gm70 filiment transformers
  230. Replacing 6922 Preamp Tube in ARC LS7
  231. Please educate me: Tube testing, the life test, and Grid Leakage
  232. 6AR6 6098 Triode PP Load Line
  233. music reference rm5-4 schematics
  234. S5 K-12G output trans
  235. Transformer center tap question
  236. EF86 + 4*EL84PSE
  237. solid state relays for plate load switching?
  238. Dont have a power transformer?
  239. Kora Equinoxe Triode or Blue Circle BC-21.1 preamp?
  240. Pre-Amp For my Tubelab Simple P-P
  241. Power Transformer Help
  242. Analog Metric 2A3 PP Kit
  243. Good, starter OTL kit
  244. Dual SE amplifier? - (not PSE) - Take two!
  245. Mysterious SE OTL headphone amp from China?!
  246. Inv. Futterman with gain stages between PI and O/P?
  247. PSU configurations for tube amp
  248. HP Model 712b Regulated Power supply
  249. Dynaco low Power Amp
  250. 300b power suply

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