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  1. Sun Audio in the USA?
  2. Wyetech Opal 6SN7 tube preamp, any DIY kit sound even close?
  3. KBG capacitors
  4. Praise for the 6N6G
  5. DHT equivalent to 12AT7?
  6. Why high voltage in coupling caps?
  7. BIAS Consonance M800SE
  8. SE ECC83 - EL 84 - EZ 81 - 1964 !
  9. Name That Design!!
  10. Distortion expected in SE DC coupled 26/45 amp
  11. One Channel is Louder than the other on my Tube Phono Pre
  12. Need a Zobel Network (or RC shunt) in tube amplifier?
  13. Aikido 12VAC Help needed
  14. Novarria TU-30 output transformer
  15. Question on Schematic
  16. CJ PV-10A
  17. Mcintosh C2200 ReCap
  18. simple tube amp for music
  19. SE Parafeed Signal Return ?
  20. RCA VC274
  21. Heathkit w5
  22. tube rectifier for 1000v AC
  23. New Tubes For Peavey Valveking VK100
  24. Tone Control Intercept Point on TU 8200
  25. Help with transformer and power switch wiring
  26. Mullard 5-20 iron
  27. Hard data on HP928
  28. Glassware Audio
  29. 5U4G problem
  30. Schematic för mono el84 SE wanted
  31. qualtek power module
  32. Low Static Hum Issue
  33. Look over my whacko schematic?
  34. PSU inrush current
  35. Heathkit A7 Output transformer
  36. THose lovely triodes
  37. Just picked up a shoebox of tubes from Craigslist
  38. Lower the primary impedance of the OPT to reduce distortion?
  39. Parallel/Series heater question
  40. Jay's Cheaterpants Hong Kong Marantz 7 Clone Build-Along
  41. Unused half of dual triode in low gain input stage in mono blocks?
  42. 12AL8 PP Amp Low Volume - Is this all or i can get more?
  43. Electrolytic cap voltage
  44. Power supply resistors
  45. Aikido Headphone amplifier
  46. preamp
  47. Resistor question
  48. How to turn Salvaged Parts into Projects..
  49. Output polarity?
  50. Help with this circuit
  51. Doing silly stuff for fun
  52. Modern Mullard head scratching
  53. Leben cs660p un identified component
  54. KT88 or 6L6 High-mu triode curves
  55. Edcor 240V primary 50hz humming
  56. Aikido quesion
  57. Why 6L6 is not more popular as power tube?
  58. 304TL SET schematic redesign. EML-20b Alternative?
  59. Question about Mullard EL84 Aplication note
  60. Magnavox tuner preamp 570111
  61. Tube amps on E-Bay
  62. Input, Output and Transfer Capacitance Question
  63. K502 Mods
  64. filament supply rectifier
  65. Triode as Voltage-Controled Dynamic Resistance in Compressor/Limiter
  66. RHSpud: Novice build
  67. 2A3 Amp - Not Another One...
  68. 12b4a pp
  69. replacing ECC82 with ECC99
  70. 2A3 input sensitivity
  71. Amp for JBL 2447 driver?
  72. Rare Philips 12ax7 Code Need Help
  73. Two quick questions on 35W4
  74. To convert Novar pins for Magnovale pins
  75. Mingda mc7r late design tweaking
  76. PSU for KT-90 PPP
  77. Noisy amp
  78. Book Recommendation for Newbies
  79. High power GU46 SE amplifier - help with certain issues
  80. Boyuu hifi Equis A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod
  81. Unknown SE output transformer wiring
  82. Class A output without all the heat cheat
  83. Grid leak bias - Easy to overload?
  84. How about LTP with degenerate resistor?
  85. 1200 vdc capacitor tube amp.
  86. Telefunken OPT
  87. Fixed bias question
  88. Question about loadline in Morgan Jones
  89. Please explain this power supply...
  90. 6SN7 - EL84 SE with interstage?
  91. 211 amp test. Square wave measures
  92. SAC thailand OPT for 211/845
  93. 6P21s
  94. 6L7M, Is there any use in audio?
  95. 958a Line Preamp
  96. What capacitors do i need for this?
  97. Experience of the TentLabs Bias control modules?
  98. Simple Line Stage Topology
  99. compound/hybrid amp
  100. 6CJ3's in full wave rectifier
  101. CCS anode load overcomes 3/2 law non-linearity
  102. EL84 PP OT design for amp project
  103. $3k o/p XFR
  104. Jadis Factory Tour
  105. Considerations for Tubelab Simplse
  106. "budget" headphone amp
  107. Power Pulse Tetrode for Audio
  108. The SE UL 6P41S USSR
  109. buzz from dacmagic on kit st70
  110. WE 350B and WE311B available
  111. How determine p-g1 capacitance in trioded pentode
  112. Why Is My Single Chassis #26 PreAmp So Stable!
  113. Rare tube
  114. Allan's rantings
  115. Tube Amp problem ?
  116. Tube preamp SS PS slight thump like dead wax on an LP
  117. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  118. SET's first ripple in a big wave ? Here it is . . .
  119. Fourier Chassis for the shipping costs
  120. 6P3S/6L6GB Amplifier from scrap parts :)
  121. Choke loaded 6ax4 bridge
  122. Transformer and choke orientation question
  123. Why some people want DC coupling in power amp?
  124. want to diy a tube preamp using only 12 volts help
  125. Russian 6p3s??
  126. Single-ended 8w amp
  127. Hovland HP 100
  128. Simple Line Stage Expanded
  129. Bridge Rectifier with Fullwave Tube
  130. Can anyone help diagnose this SOHA II amp channel?
  131. Schade and the 6C33C
  132. AMC 3030 annoying ripple noise
  133. Question and comments on SE vs PP by Eddie Vaughn
  134. 6080 PSE output Tx?
  135. Difference Between Self-Inverting Push Pull and Anti-Triode?
  136. Is this capacitor required?
  137. Why nowadays tube amplifier should play better than 1960's amplifiers?
  138. Aikido 12vac
  139. iPod to Adcom tube buffer
  140. Referencing a direct coupled output stage
  141. Long lead length to tube socket
  142. 6FH8 a strange tube for audio?
  143. Troubleshooting a µ-follower
  144. unison research unico thump on power on?
  145. CCS Not Working
  146. Allied 333 Hum
  147. EL34 Grid 3 connection
  148. The differential amplifier
  149. low power otl amplifier
  150. Using two stage opamp as first gain stage of power amp.
  151. Standing opts and lying pts?
  152. Tube substitition wanted
  153. Fatman Wi-Tube Hybrid Valve Amplifier with FatDock - No Output
  154. Operating point for 6SN7
  155. Which is the ultimate, perfect negative feedback amount you recommend in UL SE?
  156. Where to buy McIntosh Tube Amplifier Parts?
  157. comments/corrections on 6bg6 pp triode amp
  158. Question about LTP in Morgan Jones' book
  159. Matching 16 ohm loudspeaker into 8 ohm output transformer: can i do any modification?
  160. EL34 SE ultralinear configuration working as a triode: pro and cons
  161. First Build Help Needed - Transformer
  162. dynaco st70 headphone amp
  163. Velleman 4040 rebuild
  164. help needed for heater wiring of a 300B
  165. Best UX4 sockets?
  166. Filson 216 phono rework, advice please
  167. IRFS820B
  168. Help converting integrated amp to preamp
  169. 6N16B triodes: asking advice
  170. D3a IV
  171. stability of bias of KT88 in Xindak V30
  172. half 6SN7 / 6CG7 7pin mini substitute?
  173. Simple Line Stage
  174. 6L6GC redplating - what say you please?
  175. Yaqin MC-10L no bass response
  176. My first phono pre
  177. Fet rectifier?
  178. PSpice simulation
  179. Two-cases amplifier, question about power switch
  180. VTL bias problems compact 100
  181. Assembly Manual heathkit a7-b
  182. Question about CCS used in Morgan Jones' book.
  183. Layout question -- Do PS chokes inject hum into output caps?
  184. Pickering 132e record compensator
  185. Gain in Aikido for F4 + fe208ez?
  186. Audio note kit 1 power transformer
  187. DC Cancellation using Secondary Winding of Gapless OPT
  188. help for power transformer for scott 99d amp
  189. New rack mounted chassis
  190. Altec 342B bridging
  191. Kofi's Uniamp
  192. Please help with vexing grounding issue
  193. 6V6 class A2
  194. Buzzing Preamp
  195. 6922/E88CC in Parallel Mode without Cathode Resistors?
  196. 211 based on iGoliath Amplifier
  197. Art Audio UK dm vps
  198. Power supply conversion.
  199. EL84/6BQ5 tube amp project
  200. Little Bear P8 Amp Questions.
  201. 6k6 gt rca radiotron tube ?????
  202. The Guiguang 300B have good bass ?
  203. Ampex 300 Input Transformer
  204. Recap Heathkit A-7 amplifier.
  205. Testing KT-120
  206. 27GB5/PL504 The Same?
  207. Running Eico ST70 at 90 volts.
  208. TU-8200 with speakers 94db
  209. Magic behind Mentor
  210. dn2540 noise
  211. Rectifier PIV derated for altitude ?
  212. CLC psu for headamp?
  213. Teeco 610d amplifier schematic
  214. Has anyone tried the Aleph CCS in a tube amp?
  215. Question on 6 pin umbilical cord for tube power supply
  216. Transformer Spacing
  217. Can this be done?
  218. Low Voltage (60V) Stereo Tube Amplifier for Dummies (2+2W)
  219. Comparing OPS.
  220. Question on PSUD2 or My Ignorance!
  221. 8BU11 pentode section driving output transformer
  222. Schematic for Cary 300SEI
  223. parallel tubes
  224. 211 grid current
  225. Issues with Mcintosh MC2000
  226. 833a spud amplifier
  227. Klipsch 6.5" Bookshelf Good for 1W SE?
  228. Pete Millett Compactron Triple triode push-pull driver PCB for 6L6GC AB2 amp
  229. Sonic Frontiers Line 3 tubes and cap recommendations
  230. Problem with my Tentlab Transport
  231. Cheap and Cheerful GE 35EH5 SE Amp That Hums
  232. Bench Power Supply Safety
  233. Comments on this preamp?
  234. VoltSecond things that make You say OUCH!
  235. 'Selectron' tubes: From where?
  236. Tony's 6C33 pp amp build progress....
  237. power transformer voltage change
  238. Getting the Urge to Play More
  239. Valve Testing - Help
  240. 10Y/VT-25
  241. GM-70 Socket
  242. Radical Reshape of Magnavox Console Amp
  243. JC Morrison
  244. Daven 3 tube amplifier
  245. ecc82/83 questions
  246. Australian AWV Valve Date Codes
  247. Increasing feedback to Tubelab simple pp
  248. Anyone need a 5U4 ?
  249. Help in identify manufacturer (chicken feet?)
  250. g1 grid stoppers

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