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  1. Volume pot has rustling sound
  2. How best to distribute heater windings
  3. 30MB6 data
  4. Kofi Annan in: "Pushed and Pulled Back!"
  5. How dangerous is it to build an SET?
  6. 6as7 SE OTL
  7. Melody Roll
  8. 8417 Output Transformer
  9. Do you still need matched tubes if running a CCS ?
  10. Is a LM335 a direct replacement for a LM317T?
  11. Bias worry
  12. About the tube 6463
  13. awesome RCA MI 12158 tube amp project
  14. Crazy idea: Output tranny with constant magnetic gap?
  15. Most linear triode-strapped pentode
  16. Aikidio Phono Amp Questions
  17. Sample and Hold
  18. Big push-pull power for dummies
  19. Taking my KT88 SE E-linear amp to the next level (long)
  20. Aikido Janus Shunt PSU
  21. 12b4a phase splitter! The best?
  22. Sansui 500EA vs. 500A
  23. Cascoded Ring of Two for Plate Load
  24. 6SL7 distortion
  25. My new PL36 Push-Pull amp
  26. Thyratrons
  27. Tube ampl. for repair
  28. Date codes
  29. China Sountrack KT88 need shematic
  30. Anyone know anything about the Luxman A-2003 tube xover?
  31. Dynamic negative feedback?
  32. New bie: some questions, want to start DIY pre amp
  33. Power Transformer issue
  34. Guess That Tube
  35. Poor soundstage with SET 300B
  36. Dedicated ESL amp -- please comment
  37. Buzzing AC relay coil
  38. Stereo amp parallel wired to mono - possible?
  39. Need biasing advice, cathode biased amp.
  40. Before I go ahead and build this...
  41. Beginner Tube Stereo
  42. Morgan Jones and the ECC88/6922/6DJ8
  43. Help with matching speaker impedance to old tube amp
  44. srpp 2a3 power supply
  45. 12AX7 Tube Question
  46. New problem with Music Angel KT88
  47. Need help changing 12V heater to 6V
  48. Phono cathode follower challenge!!
  49. 6au6 for stereo?
  50. determining input/output impedance
  51. "Singing" output transformers
  52. Sustitute 5842 for EC86
  53. Vege-toobz ;)
  54. Bad channel in RCA Victor Console
  55. Did tone bypass on PAS what about caps
  56. Pe06/40n
  57. Anyone own an HH Scott LK-72 Integrated amp?
  58. HELP!! Howling K12G!!
  59. McIntosh MC60 Bias question
  60. Connecting a MF tube buffer directly to AKM DAC
  61. How to evaluate RF tubes for power and fidelity?
  62. Amity Amp Nutshell Audio
  63. 8086 Tubes?
  64. Lil' Devil P-P Amp
  65. 6SN7 vs. 6SL7 in Darling amp
  66. BBC AM8/6 mono tube amp schematic
  67. ST70 works with PAS but not another preamp
  68. Freds in 6X5 psu?
  69. Hi-End 50W Push-Amplifier inspired to AudioResearch
  70. Audioromy fu-29 - push pull!
  71. Help - MS-6V6 Yaqin schematic
  72. High Voltage Direct Drive amplifier for Plasma loudspeaker
  73. A Direct-Coupled Amplifier with Cathode Follower 6V6
  74. Separo- Full Pictorial Disclosure- opinions please
  75. Hammond Integrated Amp Kits 1950s
  76. LW6-180 schematic
  77. What to look for in a tube preamp?
  78. Russian-English Translation of 4P1L datasheet
  79. Can anybody identify this
  80. New York Audio Labs (NYAL) OTL1
  81. New to tubes, need your advice.
  82. Brook 12a clone
  83. What type of audio transformers to use for tubes / valves
  84. need advice about building tube xover as a piece of art
  85. My first amp project, 6BQ5 (EL84) Single-End
  86. MA 6P1 6AQ5 Push-Pull Valve Tube Integrated Amplifier
  87. Stupid AB bias question
  88. Jamoke Direct to LPT/CCS PP EL34
  89. 4 x EL84 (6BQ5) in Push-Pull - Power Supply
  90. RFC: 300B driven by anode follower (6J5/6SN7)
  91. Shuguang SG-50 ( RCA UX-250 replica) comments ???
  92. Novel mode of lithium battery bias
  93. power supply problem in my dream amp...
  94. Understanding how to wire up an Output Transformer
  95. Tube sound without the tube! (almost)
  96. Replace Bypass Cap?
  97. Sales On Sound Vintage 40s Tube Amp Info
  98. Why am I blowing fuses when connecting to next component?
  99. New owner to an old Heathkit AA-121
  100. New amp just finished 6080 pp opt
  101. Aikido as DAC I/V?
  102. Potentiometer question
  103. DHT circuit development for noob:)
  104. modifying a schematic
  105. Any idea what the primary impedance of the X101-B OPT is?
  106. Transformer Ratings
  107. noisy Gain knob
  108. overcooling question
  109. Ecl82 PP amp rebuild - suggestions?
  110. GU-50 PP amp project - Any favs?
  111. External DC power supply?
  112. shielded wire
  113. Noise & attenuation
  114. Thinking of building the SV300B Push-Pull
  115. Transformers for Push-Pull sweep tubes
  116. 12BG3's
  117. Valve audio circuit design questions.
  118. srpp & distortion
  119. Common cathode circuit values
  120. Resilient Mounts - Materials Science help please
  121. Raytheon 6G-B6 information
  122. Output transformers
  123. Filament winding wire diameter
  124. EL34 for ST70
  125. Building a Tube PreAmp for Teddy
  126. series capacitor values..
  127. Music Angel KT88 correct circuit
  128. G1=G2/mu Scaled Drive Strawman Design
  129. Output transformer for 845 SE triode amp
  130. "10 year burn in" T Shirt arrives!!!
  131. Thinking out loud -- VT-33 headphone amp?
  132. Elektor USB magic eye
  133. Maganavox Tubes Made in USA?
  134. Magic Eye VU Meter
  135. More EBAY Madness !!
  136. Major modifications of a Bogen AP-35
  137. Help with circuitmaker Pentode model
  138. Kt-120 ?
  139. Help with 6F5/6L6 rebuild...
  140. What Speaker for Webcor Tube Amp?
  141. Possible use for Pentagrid tubes??
  142. Rogers Cadet III integrated
  143. Quad II - Can 6P3S-E/GU50 be used as KT66 direct replacement?
  144. Using Grid2 screen signal -
  145. YAAGLI - Yet Another Aikido Ground Loop Issue
  146. Tube rectifier question.
  147. Dac with tube preamp?
  148. 5712 tube data needed
  149. 180 pF capacitor and other questions
  150. Simple question: Stereo to monos. How.
  151. Plate dissipation specs for 21KQ6
  152. Yaqin pre-out for subwoofer?
  153. Grid Chokes and choke load
  154. First tube amp project: GO!
  155. Hybrid Amp
  156. Circuit weirdness?
  157. How suitable is this tranformer for a Tube Amp Project?
  158. Best way to solder gold-plated components?
  159. Phono EQ hiss/white noise!!!
  160. help needed with grounded grid CCS upgrade
  161. SCORE! Kepco Tube Power supplies!
  162. 6SN7-2A3 SE Amp - James Transformers
  163. JJ ECC81/12AT7 Longevity
  164. 6V6GTA Tubes, H/K A300 Transformers, Now What?
  165. DIY valve radio
  166. U600 rectifier valve datasheet, please !!!
  167. Capacitors
  168. please help ! 5687 cd player buffer
  169. LK-72 mis-wired or am I confused?
  170. Need help with tube ID.
  171. spud amp 6c45pi vs 5842
  172. Air gapping transformers
  173. Voltage Measurement
  174. My take on a modern ST-70
  175. pls suggest a project
  176. Help with input stage driver for EL84 output stage
  177. Trying to make sense of the Sweet Peach
  178. Cornell-Dubilier Paper In Oil Capacitors
  179. lm3886 + cathode follower PS problem
  180. Completely differential amplifier final stage
  181. Capacitors in series for coupling?
  182. Help needed with messed-up-amp repairs.
  183. 6DJ8 tube schematic as balanced line stage?
  184. 6DJ8 (balanced) tube line stage
  185. Knight amp circut voltages
  186. Yet another passive attenuator
  187. What tube is this?
  188. El Cheapo ok for a first build?
  189. Anyone in Vancouver with a tube tester?
  190. How long can I expect a tube to last
  191. Output transformers... which one...?
  192. My MA845 modded and questions
  193. Sun Audio SV-2a3 HK Clone
  194. departure and tube slop
  195. Wire construction for capped tube plates
  196. Grid resistor location
  197. Meng Yue X1 trial
  198. Yarland pro845
  199. Faulty 5881 tube ?
  200. MF Xpre - help pls!!
  201. Heaters Voltage
  202. Pleas help identify this McIntosh valve amplifier
  203. Curves for Triode Connected 6EW6
  204. microwave oven transformer..
  205. Marantz 8b tubes
  206. Request: The schematic of Audible illusions MODULUS 3
  207. How many watts are really needed?
  208. Worn Tube Rectifier
  209. Bogen CHB35a Problem
  210. 29KQ6 Datasheet
  211. Help selecting a thermistor
  212. Beard P.101, new-to-me.
  213. Audioromy 838 Amp Broke need help..
  214. How to Read faded Tube Numbers
  215. Tube Text books "Reich"
  216. PCL805 parafeed SE idea + question
  217. 12V driver tubes for Engineer's Amp?
  218. >200W with 6BG6GA
  219. Leak stereo 20 modification
  220. Baby Huey components
  221. Monstrous 1kW amp!
  222. blue glow, how?
  223. Using different transformer taps for each needed B+
  224. Heating DHT Cathodes a new way???
  225. Noise problem in 572-10 PP amplifier
  226. Power transformer question (Bud?? calling Bud)
  227. Identifying 12AX7 Tubes
  228. PAS3 to volume pot
  229. Jean Hiraga SE KT88
  230. Millivolt signal and tube sockets
  231. 6N1P Data sheet differences
  232. Confident in buying tubes on ebay ?
  233. CCS Troubles
  234. Mengyue el34b schematic needed
  235. safest way to power up a new build
  236. Phono amp Raytheon 6418 tubes
  237. YL1350 Help characteristic and output tranies
  238. EL84 PP using 5K plate to plate primate OPT
  239. VR tube flashing?
  240. Tabletop 12au7 Amp
  241. Renovated website: www.pmillett.com, www.tubebooks.org
  242. Troubleshooting Eico HF-85
  243. Custom chassis europe
  244. Mixer from pre-amp design
  245. SE Output Tranny - Dumb Question
  246. What Tube for a Differential Amplifier?
  247. Thinking of buying a Lumley Reference ST70 with attached passive pre
  248. Psu
  249. Protection of the Irreplaceable
  250. Trix T621 PA amplifier (British)

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