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  1. SET Amp History in Japan
  2. Grid Bias or Cathode Bias
  3. Oscillating CJ PV-5
  4. FireFly Single Ended Tetrode
  5. Aikido front end for a SE 6C33S
  6. Ground Plane vs Star earth
  7. Circuit board with long post??
  8. ecc804 as Phase Splitter
  9. What can you do with a 3a5?
  10. Auto Wave soldering sockets
  11. Using diode for biasing
  12. No bass in 300b amp
  13. Tube socket and pin cleaning
  14. Help With Left Channel Hum
  15. Volume pot has rustling sound
  16. How best to distribute heater windings
  17. 30MB6 data
  18. Kofi Annan in: "Pushed and Pulled Back!"
  19. How dangerous is it to build an SET?
  20. 6as7 SE OTL
  21. Melody Roll
  22. 8417 Output Transformer
  23. Do you still need matched tubes if running a CCS ?
  24. Is a LM335 a direct replacement for a LM317T?
  25. Bias worry
  26. About the tube 6463
  27. awesome RCA MI 12158 tube amp project
  28. Crazy idea: Output tranny with constant magnetic gap?
  29. Most linear triode-strapped pentode
  30. Aikidio Phono Amp Questions
  31. Sample and Hold
  32. Big push-pull power for dummies
  33. Taking my KT88 SE E-linear amp to the next level (long)
  34. Aikido Janus Shunt PSU
  35. 12b4a phase splitter! The best?
  36. Sansui 500EA vs. 500A
  37. Cascoded Ring of Two for Plate Load
  38. 6SL7 distortion
  39. My new PL36 Push-Pull amp
  40. Thyratrons
  41. Tube ampl. for repair
  42. Date codes
  43. China Sountrack KT88 need shematic
  44. Anyone know anything about the Luxman A-2003 tube xover?
  45. Dynamic negative feedback?
  46. New bie: some questions, want to start DIY pre amp
  47. Power Transformer issue
  48. Guess That Tube
  49. Poor soundstage with SET 300B
  50. Dedicated ESL amp -- please comment
  51. Buzzing AC relay coil
  52. Stereo amp parallel wired to mono - possible?
  53. Need biasing advice, cathode biased amp.
  54. Before I go ahead and build this...
  55. Beginner Tube Stereo
  56. Morgan Jones and the ECC88/6922/6DJ8
  57. Help with matching speaker impedance to old tube amp
  58. srpp 2a3 power supply
  59. 12AX7 Tube Question
  60. New problem with Music Angel KT88
  61. Need help changing 12V heater to 6V
  62. Phono cathode follower challenge!!
  63. 6au6 for stereo?
  64. determining input/output impedance
  65. "Singing" output transformers
  66. Sustitute 5842 for EC86
  67. Vege-toobz ;)
  68. Bad channel in RCA Victor Console
  69. Did tone bypass on PAS what about caps
  70. Pe06/40n
  71. Anyone own an HH Scott LK-72 Integrated amp?
  72. HELP!! Howling K12G!!
  73. McIntosh MC60 Bias question
  74. Connecting a MF tube buffer directly to AKM DAC
  75. How to evaluate RF tubes for power and fidelity?
  76. Amity Amp Nutshell Audio
  77. 8086 Tubes?
  78. Lil' Devil P-P Amp
  79. 6SN7 vs. 6SL7 in Darling amp
  80. BBC AM8/6 mono tube amp schematic
  81. ST70 works with PAS but not another preamp
  82. Freds in 6X5 psu?
  83. Hi-End 50W Push-Amplifier inspired to AudioResearch
  84. Audioromy fu-29 - push pull!
  85. Help - MS-6V6 Yaqin schematic
  86. High Voltage Direct Drive amplifier for Plasma loudspeaker
  87. A Direct-Coupled Amplifier with Cathode Follower 6V6
  88. Separo- Full Pictorial Disclosure- opinions please
  89. Hammond Integrated Amp Kits 1950s
  90. LW6-180 schematic
  91. What to look for in a tube preamp?
  92. Russian-English Translation of 4P1L datasheet
  93. Can anybody identify this
  94. New York Audio Labs (NYAL) OTL1
  95. 5F6A via Mechanical Design
  96. New to tubes, need your advice.
  97. Brook 12a clone
  98. What type of audio transformers to use for tubes / valves
  99. need advice about building tube xover as a piece of art
  100. My first amp project, 6BQ5 (EL84) Single-End
  101. MA 6P1 6AQ5 Push-Pull Valve Tube Integrated Amplifier
  102. Stupid AB bias question
  103. Jamoke Direct to LPT/CCS PP EL34
  104. 4 x EL84 (6BQ5) in Push-Pull - Power Supply
  105. RFC: 300B driven by anode follower (6J5/6SN7)
  106. AVO VCM163 oddity
  107. Shuguang SG-50 ( RCA UX-250 replica) comments ???
  108. Novel mode of lithium battery bias
  109. power supply problem in my dream amp...
  110. Understanding how to wire up an Output Transformer
  111. Tube sound without the tube! (almost)
  112. Replace Bypass Cap?
  113. Sales On Sound Vintage 40s Tube Amp Info
  114. Why am I blowing fuses when connecting to next component?
  115. New owner to an old Heathkit AA-121
  116. New amp just finished 6080 pp opt
  117. Aikido as DAC I/V?
  118. Have two 572B-162L USA mfg tubes for trade
  119. Potentiometer question
  120. DHT circuit development for noob:)
  121. modifying a schematic
  122. TV-4a/u Weston USM Tube Tester: got a manual or schematic?
  123. Any idea what the primary impedance of the X101-B OPT is?
  124. Transformer Ratings
  125. noisy Gain knob
  126. overcooling question
  127. Ecl82 PP amp rebuild - suggestions?
  128. GU-50 PP amp project - Any favs?
  129. External DC power supply?
  130. shielded wire
  131. Noise & attenuation
  132. Thinking of building the SV300B Push-Pull
  133. Transformers for Push-Pull sweep tubes
  134. 12BG3's
  135. Valve audio circuit design questions.
  136. srpp & distortion
  137. Common cathode circuit values
  138. Resilient Mounts - Materials Science help please
  139. Raytheon 6G-B6 information
  140. Output transformers
  141. Filament winding wire diameter
  142. EL34 for ST70
  143. Building a Tube PreAmp for Teddy
  144. series capacitor values..
  145. Music Angel KT88 correct circuit
  146. G1=G2/mu Scaled Drive Strawman Design
  147. Output transformer for 845 SE triode amp
  148. "10 year burn in" T Shirt arrives!!!
  149. Thinking out loud -- VT-33 headphone amp?
  150. Elektor USB magic eye
  151. Maganavox Tubes Made in USA?
  152. Magic Eye VU Meter
  153. More EBAY Madness !!
  154. Major modifications of a Bogen AP-35
  155. Help with circuitmaker Pentode model
  156. Kt-120 ?
  157. Help with 6F5/6L6 rebuild...
  158. What Speaker for Webcor Tube Amp?
  159. Possible use for Pentagrid tubes??
  160. Rogers Cadet III integrated
  161. Quad II - Can 6P3S-E/GU50 be used as KT66 direct replacement?
  162. Using Grid2 screen signal -
  163. YAAGLI - Yet Another Aikido Ground Loop Issue
  164. Tube rectifier question.
  165. Dac with tube preamp?
  166. 5712 tube data needed
  167. 180 pF capacitor and other questions
  168. Simple question: Stereo to monos. How.
  169. Plate dissipation specs for 21KQ6
  170. Yaqin pre-out for subwoofer?
  171. Grid Chokes and choke load
  172. First tube amp project: GO!
  173. Hybrid Amp
  174. Circuit weirdness?
  175. How suitable is this tranformer for a Tube Amp Project?
  176. Best way to solder gold-plated components?
  177. Phono EQ hiss/white noise!!!
  178. help needed with grounded grid CCS upgrade
  179. Resistor wattage?
  180. SCORE! Kepco Tube Power supplies!
  181. 6SN7-2A3 SE Amp - James Transformers
  182. Capacitor explosion.
  183. JJ ECC81/12AT7 Longevity
  184. 6V6GTA Tubes, H/K A300 Transformers, Now What?
  185. DIY valve radio
  186. U600 rectifier valve datasheet, please !!!
  187. Capacitors
  188. please help ! 5687 cd player buffer
  189. LK-72 mis-wired or am I confused?
  190. Need help with tube ID.
  191. spud amp 6c45pi vs 5842
  192. Air gapping transformers
  193. Voltage Measurement
  194. Cornell-Dubilier Caps Western Electric 91A Amplifier
  195. My take on a modern ST-70
  196. pls suggest a project
  197. Help with input stage driver for EL84 output stage
  198. Trying to make sense of the Sweet Peach
  199. Cornell-Dubilier Paper In Oil Capacitors
  200. lm3886 + cathode follower PS problem
  201. Completely differential amplifier final stage
  202. Capacitors in series for coupling?
  203. Help needed with messed-up-amp repairs.
  204. 6DJ8 tube schematic as balanced line stage?
  205. 6DJ8 (balanced) tube line stage
  206. Knight amp circut voltages
  207. Yet another passive attenuator
  208. What tube is this?
  209. El Cheapo ok for a first build?
  210. Anyone in Vancouver with a tube tester?
  211. How long can I expect a tube to last
  212. Output transformers... which one...?
  213. My MA845 modded and questions
  214. Sun Audio SV-2a3 HK Clone
  215. departure and tube slop
  216. Wire construction for capped tube plates
  217. Grid resistor location
  218. Meng Yue X1 trial
  219. Yarland pro845
  220. Faulty 5881 tube ?
  221. MF Xpre - help pls!!
  222. Heaters Voltage
  223. Pleas help identify this McIntosh valve amplifier
  224. Curves for Triode Connected 6EW6
  225. microwave oven transformer..
  226. Marantz 8b tubes
  227. Request: The schematic of Audible illusions MODULUS 3
  228. How many watts are really needed?
  229. Worn Tube Rectifier
  230. Bogen CHB35a Problem
  231. 29KQ6 Datasheet
  232. Help selecting a thermistor
  233. Beard P.101, new-to-me.
  234. Audioromy 838 Amp Broke need help..
  235. How to Read faded Tube Numbers
  236. Test data for 6H30PI & Hickok 539??
  237. Tube Text books "Reich"
  238. PCL805 parafeed SE idea + question
  239. 12V driver tubes for Engineer's Amp?
  240. >200W with 6BG6GA
  241. Leak stereo 20 modification
  242. Baby Huey components
  243. Monstrous 1kW amp!
  244. blue glow, how?
  245. Using different transformer taps for each needed B+
  246. Heating DHT Cathodes a new way???
  247. Noise problem in 572-10 PP amplifier
  248. Power transformer question (Bud?? calling Bud)
  249. Identifying 12AX7 Tubes
  250. PAS3 to volume pot

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