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  1. For Your Consideration: Unity Coupled Plitron Amp, No Bootstrapped Driver, No GNF
  2. Tango Transformers - any unique push pull circuits?
  3. newbe at designing tube amp
  4. Need help with microphone preamp.
  5. Trouble shooting vintage Harman Kardon A250
  6. Coating on Hammond Power Transformer
  7. Small tube amp for PC
  8. CCS dissipation
  9. 6SL7 - grid stopper values
  10. HELP - Laying out footprint for 9 pin tube socket
  11. Telefunken Magnetophon 104 - Keep or strip?
  12. Transformer rewinding or repair needed.
  13. Sun Audio in the USA?
  14. Wyetech Opal 6SN7 tube preamp, any DIY kit sound even close?
  15. KBG capacitors
  16. Praise for the 6N6G
  17. DHT equivalent to 12AT7?
  18. Why high voltage in coupling caps?
  19. BIAS Consonance M800SE
  20. SE ECC83 - EL 84 - EZ 81 - 1964 !
  21. Name That Design!!
  22. Distortion expected in SE DC coupled 26/45 amp
  23. One Channel is Louder than the other on my Tube Phono Pre
  24. Need a Zobel Network (or RC shunt) in tube amplifier?
  25. Aikido 12VAC Help needed
  26. Novarria TU-30 output transformer
  27. Question on Schematic
  28. CJ PV-10A
  29. Mcintosh C2200 ReCap
  30. simple tube amp for music
  31. SE Parafeed Signal Return ?
  32. RCA VC274
  33. Heathkit w5
  34. tube rectifier for 1000v AC
  35. New Tubes For Peavey Valveking VK100
  36. Tone Control Intercept Point on TU 8200
  37. Help with transformer and power switch wiring
  38. Mullard 5-20 iron
  39. Hard data on HP928
  40. Glassware Audio
  41. 5U4G problem
  42. Schematic för mono el84 SE wanted
  43. qualtek power module
  44. Low Static Hum Issue
  45. Look over my whacko schematic?
  46. PSU inrush current
  47. Heathkit A7 Output transformer
  48. THose lovely triodes
  49. Just picked up a shoebox of tubes from Craigslist
  50. Lower the primary impedance of the OPT to reduce distortion?
  51. Parallel/Series heater question
  52. Jay's Cheaterpants Hong Kong Marantz 7 Clone Build-Along
  53. Unused half of dual triode in low gain input stage in mono blocks?
  54. 12AL8 PP Amp Low Volume - Is this all or i can get more?
  55. Electrolytic cap voltage
  56. Power supply resistors
  57. Aikido Headphone amplifier
  58. preamp
  59. Resistor question
  60. How to turn Salvaged Parts into Projects..
  61. Output polarity?
  62. Help with this circuit
  63. Doing silly stuff for fun
  64. Modern Mullard head scratching
  65. Leben cs660p un identified component
  66. KT88 or 6L6 High-mu triode curves
  67. Edcor 240V primary 50hz humming
  68. Aikido quesion
  69. Why 6L6 is not more popular as power tube?
  70. 304TL SET schematic redesign. EML-20b Alternative?
  71. Question about Mullard EL84 Aplication note
  72. Magnavox tuner preamp 570111
  73. Tube amps on E-Bay
  74. Input, Output and Transfer Capacitance Question
  75. K502 Mods
  76. filament supply rectifier
  77. Triode as Voltage-Controled Dynamic Resistance in Compressor/Limiter
  78. RHSpud: Novice build
  79. 2A3 Amp - Not Another One...
  80. 12b4a pp
  81. replacing ECC82 with ECC99
  82. 2A3 input sensitivity
  83. Amp for JBL 2447 driver?
  84. Rare Philips 12ax7 Code Need Help
  85. Two quick questions on 35W4
  86. To convert Novar pins for Magnovale pins
  87. Mingda mc7r late design tweaking
  88. PSU for KT-90 PPP
  89. Noisy amp
  90. Book Recommendation for Newbies
  91. High power GU46 SE amplifier - help with certain issues
  92. BOYUU HIFI EXQUIS A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod
  93. Unknown SE output transformer wiring
  94. Class A output without all the heat cheat
  95. Grid leak bias - Easy to overload?
  96. How about LTP with degenerate resistor?
  97. 1200 vdc capacitor tube amp.
  98. Telefunken OPT
  99. Fixed bias question
  100. Question about loadline in Morgan Jones
  101. Please explain this power supply...
  102. 6SN7 - EL84 SE with interstage?
  103. 211 amp test. Square wave measures
  104. SAC thailand OPT for 211/845
  105. 6P21s
  106. 6L7M, Is there any use in audio?
  107. 958a Line Preamp
  108. What capacitors do i need for this?
  109. Experience of the TentLabs Bias control modules?
  110. Simple Line Stage Topology
  111. compound/hybrid amp
  112. 6CJ3's in full wave rectifier
  113. CCS anode load overcomes 3/2 law non-linearity
  114. EL84 PP OT design for amp project
  115. $3k o/p XFR
  116. Jadis Factory Tour
  117. Considerations for Tubelab Simplse
  118. "budget" headphone amp
  119. Power Pulse Tetrode for Audio
  120. The SE UL 6P41S USSR
  121. buzz from dacmagic on kit st70
  122. WE 350B and WE311B available
  123. How determine p-g1 capacitance in trioded pentode
  124. Why Is My Single Chassis #26 PreAmp So Stable!
  125. Rare tube
  126. Allan's rantings
  127. Tube Amp problem ?
  128. Tube preamp SS PS slight thump like dead wax on an LP
  129. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  130. SET's first ripple in a big wave ? Here it is . . .
  131. Fourier Chassis for the shipping costs
  132. 6P3S/6L6GB Amplifier from scrap parts :)
  133. Choke loaded 6ax4 bridge
  134. Transformer and choke orientation question
  135. Why some people want DC coupling in power amp?
  136. want to diy a tube preamp using only 12 volts help
  137. Russian 6p3s??
  138. Single-ended 8w amp
  139. Hovland HP 100
  140. Simple Line Stage Expanded
  141. Bridge Rectifier with Fullwave Tube
  142. Can anyone help diagnose this SOHA II amp channel?
  143. Schade and the 6C33C
  144. AMC 3030 annoying ripple noise
  145. Question and comments on SE vs PP by Eddie Vaughn
  146. 6080 PSE output Tx?
  147. Difference Between Self-Inverting Push Pull and Anti-Triode?
  148. Is this capacitor required?
  149. Why nowadays tube amplifier should play better than 1960's amplifiers?
  150. Aikido 12vac
  151. iPod to Adcom tube buffer
  152. Referencing a direct coupled output stage
  153. Long lead length to tube socket
  154. 6FH8 a strange tube for audio?
  155. Troubleshooting a µ-follower
  156. unison research unico thump on power on?
  157. CCS Not Working
  158. Allied 333 Hum
  159. EL34 Grid 3 connection
  160. The differential amplifier
  161. low power otl amplifier
  162. Using two stage opamp as first gain stage of power amp.
  163. Standing opts and lying pts?
  164. Tube substitition wanted
  165. Fatman Wi-Tube Hybrid Valve Amplifier with FatDock - No Output
  166. Operating point for 6SN7
  167. Which is the ultimate, perfect negative feedback amount you recommend in UL SE?
  168. Where to buy McIntosh Tube Amplifier Parts?
  169. comments/corrections on 6bg6 pp triode amp
  170. Question about LTP in Morgan Jones' book
  171. Matching 16 ohm loudspeaker into 8 ohm output transformer: can i do any modification?
  172. EL34 SE ultralinear configuration working as a triode: pro and cons
  173. First Build Help Needed - Transformer
  174. dynaco st70 headphone amp
  175. Velleman 4040 rebuild
  176. help needed for heater wiring of a 300B
  177. Best UX4 sockets?
  178. Filson 216 phono rework, advice please
  179. IRFS820B
  180. Help converting integrated amp to preamp
  181. 6N16B triodes: asking advice
  182. D3a IV
  183. stability of bias of KT88 in Xindak V30
  184. half 6SN7 / 6CG7 7pin mini substitute?
  185. Simple Line Stage
  186. 6L6GC redplating - what say you please?
  187. Yaqin MC-10L no bass response
  188. My first phono pre
  189. Fet rectifier?
  190. PSpice simulation
  191. Two-cases amplifier, question about power switch
  192. VTL bias problems compact 100
  193. Assembly Manual heathkit a7-b
  194. Question about CCS used in Morgan Jones' book.
  195. Layout question -- Do PS chokes inject hum into output caps?
  196. Pickering 132e record compensator
  197. Gain in Aikido for F4 + fe208ez?
  198. Audio note kit 1 power transformer
  199. DC Cancellation using Secondary Winding of Gapless OPT
  200. help for power transformer for scott 99d amp
  201. New rack mounted chassis
  202. Altec 342B bridging
  203. Kofi's Uniamp
  204. Please help with vexing grounding issue
  205. 6V6 class A2
  206. Buzzing Preamp
  207. 6922/E88CC in Parallel Mode without Cathode Resistors?
  208. 211 based on iGoliath Amplifier
  209. Art Audio UK dm vps
  210. Power supply conversion.
  211. EL84/6BQ5 tube amp project
  212. Little Bear P8 Amp Questions.
  213. 6k6 gt rca radiotron tube ?????
  214. The Guiguang 300B have good bass ?
  215. Ampex 300 Input Transformer
  216. Recap Heathkit A-7 amplifier.
  217. Testing KT-120
  218. 27GB5/PL504 The Same?
  219. Running Eico ST70 at 90 volts.
  220. TU-8200 with speakers 94db
  221. Magic behind Mentor
  222. dn2540 noise
  223. Rectifier PIV derated for altitude ?
  224. CLC psu for headamp?
  225. Teeco 610d amplifier schematic
  226. Has anyone tried the Aleph CCS in a tube amp?
  227. Question on 6 pin umbilical cord for tube power supply
  228. Transformer Spacing
  229. Can this be done?
  230. Low Voltage (60V) Stereo Tube Amplifier for Dummies (2+2W)
  231. Comparing OPS.
  232. Question on PSUD2 or My Ignorance!
  233. 8BU11 pentode section driving output transformer
  234. Schematic for Cary 300SEI
  235. parallel tubes
  236. 211 grid current
  237. Issues with Mcintosh MC2000
  238. 833a spud amplifier
  239. Klipsch 6.5" Bookshelf Good for 1W SE?
  240. Pete Millett Compactron Triple triode push-pull driver PCB for 6L6GC AB2 amp
  241. Sonic Frontiers Line 3 tubes and cap recommendations
  242. Problem with my Tentlab Transport
  243. Cheap and Cheerful GE 35EH5 SE Amp That Hums
  244. Bench Power Supply Safety
  245. Comments on this preamp?
  246. VoltSecond things that make You say OUCH!
  247. 'Selectron' tubes: From where?
  248. Tony's 6C33 pp amp build progress....
  249. power transformer voltage change
  250. Getting the Urge to Play More

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