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  1. 958a Line Preamp
  2. What capacitors do i need for this?
  3. Experience of the TentLabs Bias control modules?
  4. Simple Line Stage Topology
  5. compound/hybrid amp
  6. 6CJ3's in full wave rectifier
  7. CCS anode load overcomes 3/2 law non-linearity
  8. EL84 PP OT design for amp project
  9. $3k o/p XFR
  10. Jadis Factory Tour
  11. Considerations for Tubelab Simplse
  12. "budget" headphone amp
  13. Power Pulse Tetrode for Audio
  14. The SE UL 6P41S USSR
  15. buzz from dacmagic on kit st70
  16. WE 350B and WE311B available
  17. How determine p-g1 capacitance in trioded pentode
  18. Why Is My Single Chassis #26 PreAmp So Stable!
  19. Rare tube
  20. Allan's rantings
  21. Tube Amp problem ?
  22. Tube preamp SS PS slight thump like dead wax on an LP
  23. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  24. SET's first ripple in a big wave ? Here it is . . .
  25. Fourier Chassis for the shipping costs
  26. 6P3S/6L6GB Amplifier from scrap parts :)
  27. Choke loaded 6ax4 bridge
  28. Transformer and choke orientation question
  29. Why some people want DC coupling in power amp?
  30. want to diy a tube preamp using only 12 volts help
  31. Russian 6p3s??
  32. Single-ended 8w amp
  33. Hovland HP 100
  34. Simple Line Stage Expanded
  35. Bridge Rectifier with Fullwave Tube
  36. Can anyone help diagnose this SOHA II amp channel?
  37. Schade and the 6C33C
  38. AMC 3030 annoying ripple noise
  39. Question and comments on SE vs PP by Eddie Vaughn
  40. 6080 PSE output Tx?
  41. Difference Between Self-Inverting Push Pull and Anti-Triode?
  42. Is this capacitor required?
  43. Why nowadays tube amplifier should play better than 1960's amplifiers?
  44. Aikido 12vac
  45. iPod to Adcom tube buffer
  46. Referencing a direct coupled output stage
  47. Long lead length to tube socket
  48. 6FH8 a strange tube for audio?
  49. Troubleshooting a µ-follower
  50. unison research unico thump on power on?
  51. CCS Not Working
  52. Allied 333 Hum
  53. EL34 Grid 3 connection
  54. The differential amplifier
  55. low power otl amplifier
  56. Using two stage opamp as first gain stage of power amp.
  57. Standing opts and lying pts?
  58. Tube substitition wanted
  59. Fatman Wi-Tube Hybrid Valve Amplifier with FatDock - No Output
  60. Operating point for 6SN7
  61. Which is the ultimate, perfect negative feedback amount you recommend in UL SE?
  62. Where to buy McIntosh Tube Amplifier Parts?
  63. comments/corrections on 6bg6 pp triode amp
  64. Question about LTP in Morgan Jones' book
  65. Matching 16 ohm loudspeaker into 8 ohm output transformer: can i do any modification?
  66. EL34 SE ultralinear configuration working as a triode: pro and cons
  67. First Build Help Needed - Transformer
  68. dynaco st70 headphone amp
  69. Velleman 4040 rebuild
  70. help needed for heater wiring of a 300B
  71. Best UX4 sockets?
  72. Filson 216 phono rework, advice please
  73. IRFS820B
  74. Help converting integrated amp to preamp
  75. 6N16B triodes: asking advice
  76. D3a IV
  77. stability of bias of KT88 in Xindak V30
  78. half 6SN7 / 6CG7 7pin mini substitute?
  79. Simple Line Stage
  80. 6L6GC redplating - what say you please?
  81. Yaqin MC-10L no bass response
  82. My first phono pre
  83. Fet rectifier?
  84. PSpice simulation
  85. Two-cases amplifier, question about power switch
  86. VTL bias problems compact 100
  87. Assembly Manual heathkit a7-b
  88. Question about CCS used in Morgan Jones' book.
  89. Layout question -- Do PS chokes inject hum into output caps?
  90. Pickering 132e record compensator
  91. Gain in Aikido for F4 + fe208ez?
  92. Audio note kit 1 power transformer
  93. DC Cancellation using Secondary Winding of Gapless OPT
  94. help for power transformer for scott 99d amp
  95. New rack mounted chassis
  96. Altec 342B bridging
  97. Kofi's Uniamp
  98. Please help with vexing grounding issue
  99. 6V6 class A2
  100. Buzzing Preamp
  101. 6922/E88CC in Parallel Mode without Cathode Resistors?
  102. 211 based on iGoliath Amplifier
  103. Art Audio UK dm vps
  104. Power supply conversion.
  105. EL84/6BQ5 tube amp project
  106. Little Bear P8 Amp Questions.
  107. 6k6 gt rca radiotron tube ?????
  108. The Guiguang 300B have good bass ?
  109. Ampex 300 Input Transformer
  110. Recap Heathkit A-7 amplifier.
  111. Testing KT-120
  112. 27GB5/PL504 The Same?
  113. Running Eico ST70 at 90 volts.
  114. TU-8200 with speakers 94db
  115. Magic behind Mentor
  116. dn2540 noise
  117. Rectifier PIV derated for altitude ?
  118. CLC psu for headamp?
  119. Teeco 610d amplifier schematic
  120. Has anyone tried the Aleph CCS in a tube amp?
  121. Question on 6 pin umbilical cord for tube power supply
  122. Transformer Spacing
  123. Can this be done?
  124. Low Voltage (60V) Stereo Tube Amplifier for Dummies (2+2W)
  125. Comparing OPS.
  126. Question on PSUD2 or My Ignorance!
  127. 8BU11 pentode section driving output transformer
  128. Schematic for Cary 300SEI
  129. parallel tubes
  130. 211 grid current
  131. Issues with Mcintosh MC2000
  132. 833a spud amplifier
  133. Klipsch 6.5" Bookshelf Good for 1W SE?
  134. Pete Millett Compactron Triple triode push-pull driver PCB for 6L6GC AB2 amp
  135. Sonic Frontiers Line 3 tubes and cap recommendations
  136. Problem with my Tentlab Transport
  137. Cheap and Cheerful GE 35EH5 SE Amp That Hums
  138. Bench Power Supply Safety
  139. Comments on this preamp?
  140. VoltSecond things that make You say OUCH!
  141. 'Selectron' tubes: From where?
  142. Tony's 6C33 pp amp build progress....
  143. power transformer voltage change
  144. Getting the Urge to Play More
  145. Valve Testing - Help
  146. 10Y/VT-25
  147. GM-70 Socket
  148. Radical Reshape of Magnavox Console Amp
  149. JC Morrison
  150. Daven 3 tube amplifier
  151. ecc82/83 questions
  152. Australian AWV Valve Date Codes
  153. Increasing feedback to Tubelab simple pp
  154. Anyone need a 5U4 ?
  155. Help in identify manufacturer (chicken feet?)
  156. g1 grid stoppers
  157. Lot of tubes needs a new home.....
  158. Differential Bias
  159. British Vacuum Cleaner £ Eng Co Ltd - Goblin
  160. output cap and stepped vol advice. Cary SLP50
  161. Sony TC-500 Gives Its All
  162. Another 211 monobloc
  163. 6N1P-EV Voskhod or Anod manufactured better sounding?
  164. help with long tail pair bandwidth
  165. Anyone have both an Eico HF-81 and Akai M-8?
  166. Sylvania Engineering Sample 12ax7
  167. Diy toroid transformers for 5E3 guitar amp?
  168. Between 5AR4/GZ34, 6CH3/6CJ3 and 6D22S anode resistance
  169. One-tube simple amplifier sound experiment
  170. CK1006 ignition voltage?
  171. First build- dual mono octal linestage
  172. schematic for Baldwin 3 chan organ amp
  173. output transformer inquiry.
  174. 807 triode strapped amp - few questions
  175. HV power supply with filament bias
  176. newbie with oldie! (klemt m40 valve amp)
  177. too high voltage supply HELP
  178. 6Y6G Triode Curves
  179. A Tube buffer question from a Tube newbie
  180. Marantz 7c Question - HELP !
  181. Western Electric 555 receiver (Horn Driver)
  182. Getter heater & B+ sequencing ?
  183. Tube Amplifier with 30P1S SE
  184. Little OTL / Class " A "
  185. ATC SEMITEC DIODE, CURRENT REGULATOR
  186. seperate heater transformer advice please
  187. MQ 420-SL OTs
  188. Frequency Response of Williamson Amplifier in LTspice
  189. Edcor transformer upgrade for K12G tube amp?
  190. Transformers placement under PCB
  191. OT PP Hashimoto HW-100-5 tube amp?
  192. Winding an output transformer for headphones ? Some questions
  193. Push Pull OPT Primary Impedance
  194. Tube compliment substitution question. 6gw8 to ?
  195. Watts or Db/watt ?
  196. A question about the OPT Design Assistant software and Impedance matching
  197. XF86
  198. GM70 OTL ???
  199. Output transformer impedance matching
  200. Distortion in 1 channel
  201. HV Electrolytic Caps Question
  202. need to know operating voltage for 6f6 tube amp
  203. The 2A3 build is in dream state
  204. Alembic F2B clone hum & noise
  205. Spice Question
  206. Are large SE amps like 211/845 viable!
  207. Power transformer & heater wiring questions
  208. Parallel KT88 SET Amp
  209. Why people keep talking about using pentodes in triode mode for power amp?
  210. Mono series attenuators vs. PEC for balance control?
  211. TubeTech e813cc Pair for sale on eBay.
  212. Help with new pp kt77
  213. Is 5 Watts enough?
  214. First amp advice for a Newbie
  215. Tube/valve stuff in Tokyo
  216. Advice for a neophyte
  217. EML300B reliability
  218. User's Manual Golden Tube SEP1
  219. DIY to compete with commercial
  220. Ferrite Core vs. Laminations for 2 watt OPT
  221. generating burst waveform in OrCAD® Capture program
  222. O.T. with Litz wire
  223. Valve upgrade T.A.C. 34MK
  224. Another KT88 SE Abdellah with bias issues
  225. Lowering plate dissipation
  226. A helping hand with a diyed 5687 pre, anyone?
  227. Curtis Mathes Royal Dane
  228. Buzzing decreasing with volume
  229. Fluro Ballast as DIY choke?
  230. 5R4GA ws 5R4WGB
  231. Vintage Webcor Reel to Reel Cap Value Replacement
  232. Coupling Capacitor question
  233. Aikido preamp: 12AU7 or 6CF7/6FQ7 ???
  234. Help needed to identify this Knight Mono Integrated Amp
  235. Winding my own OT
  236. Need a scope screenshot/photo of a Tube clipping
  237. isolating tube sockets
  238. tube cathode bias question: resistor / diode
  239. Silicon Chip mag "Currawong" amp
  240. Vibration spec of 6L6GC ?
  241. Output Transformer Question
  242. 6V6/6l6/EL34/KT66/KT77/6550/KT88 Primaries/ input/loads
  243. Question about HK Citation V schematics
  244. Multi-purpose Tube Preamp - need some help
  245. Vacuum Tube Workshop
  246. Constant Current Heater Source
  247. Tube amp channel loading
  248. Sexy Westra loudspeakers looking for a match
  249. KT90 parallel push pull design
  250. Beard P100 mk1 owners? And some questions.

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