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  1. 300B
  2. 12AX7 EL34B TUBE AMPLIFIER
  3. UK info please
  4. PAS 2/3 RIAA Modification
  5. My Homage to the Earmax Headphone Amp
  6. Aikio Line Stage
  7. Lite Audio LS 58 schematic
  8. Lite Audio LS 58 schematic
  9. Love those triodes
  10. Differential Pair with negative feedback
  11. Quad II Eighty Schematic?
  12. Adventures with Aikido
  13. Beard BB 100 and Beard A35
  14. Noob is about to press the BIN button and buy a Chinese tube amp kit. Save me/ help?
  15. Ebay Kit EL34 6n9P 5Z3P Build Thread.
  16. Sakuma 46 / 801A Circuit
  17. Tube Manufacturing at Expo-Pul
  18. Philips EL6410, how does it sound?
  19. tube amp power help
  20. Video from the Czech Tesla Tube factory
  21. Alans' rantings
  22. 3 x 3 Tube amp 30 watts
  23. Maximum allowed capacitance after gas rectifiers
  24. PSUD2 rectifiers list
  25. EL34 amplifier with these transformers
  26. Aikido Octal Dual Mono for Dummies... Help me.
  27. Monster Trans or Really Good Doorstop?
  28. The correct way to wire DC filaments 3B7 DHT
  29. Haller Circuit Problems
  30. Need recommendation for VERY basic amp project
  31. Recommendation on tube buffer?
  32. For Your Consideration: Unity Coupled Plitron Amp, No Bootstrapped Driver, No GNF
  33. Tango Transformers - any unique push pull circuits?
  34. newbe at designing tube amp
  35. Need help with microphone preamp.
  36. Trouble shooting vintage Harman Kardon A250
  37. Coating on Hammond Power Transformer
  38. Small tube amp for PC
  39. CCS dissipation
  40. 6SL7 - grid stopper values
  41. HELP - Laying out footprint for 9 pin tube socket
  42. Telefunken Magnetophon 104 - Keep or strip?
  43. Transformer rewinding or repair needed.
  44. Sun Audio in the USA?
  45. Wyetech Opal 6SN7 tube preamp, any DIY kit sound even close?
  46. KBG capacitors
  47. Praise for the 6N6G
  48. DHT equivalent to 12AT7?
  49. Why high voltage in coupling caps?
  50. BIAS Consonance M800SE
  51. SE ECC83 - EL 84 - EZ 81 - 1964 !
  52. Name That Design!!
  53. Distortion expected in SE DC coupled 26/45 amp
  54. One Channel is Louder than the other on my Tube Phono Pre
  55. Need a Zobel Network (or RC shunt) in tube amplifier?
  56. Aikido 12VAC Help needed
  57. Novarria TU-30 output transformer
  58. Question on Schematic
  59. CJ PV-10A
  60. Mcintosh C2200 ReCap
  61. simple tube amp for music
  62. SE Parafeed Signal Return ?
  63. RCA VC274
  64. Heathkit w5
  65. tube rectifier for 1000v AC
  66. New Tubes For Peavey Valveking VK100
  67. Tone Control Intercept Point on TU 8200
  68. Help with transformer and power switch wiring
  69. Mullard 5-20 iron
  70. Hard data on HP928
  71. Glassware Audio
  72. 5U4G problem
  73. Schematic för mono el84 SE wanted
  74. qualtek power module
  75. Low Static Hum Issue
  76. Look over my whacko schematic?
  77. PSU inrush current
  78. Heathkit A7 Output transformer
  79. THose lovely triodes
  80. Just picked up a shoebox of tubes from Craigslist
  81. Lower the primary impedance of the OPT to reduce distortion?
  82. Parallel/Series heater question
  83. Jay's Cheaterpants Hong Kong Marantz 7 Clone Build-Along
  84. Unused half of dual triode in low gain input stage in mono blocks?
  85. 12AL8 PP Amp Low Volume - Is this all or i can get more?
  86. Electrolytic cap voltage
  87. Power supply resistors
  88. Aikido Headphone amplifier
  89. preamp
  90. Resistor question
  91. How to turn Salvaged Parts into Projects..
  92. Output polarity?
  93. Help with this circuit
  94. Doing silly stuff for fun
  95. Modern Mullard head scratching
  96. Leben cs660p un identified component
  97. KT88 or 6L6 High-mu triode curves
  98. Edcor 240V primary 50hz humming
  99. Aikido quesion
  100. Why 6L6 is not more popular as power tube?
  101. 304TL SET schematic redesign. EML-20b Alternative?
  102. Question about Mullard EL84 Aplication note
  103. Magnavox tuner preamp 570111
  104. Tube amps on E-Bay
  105. Input, Output and Transfer Capacitance Question
  106. K502 Mods
  107. filament supply rectifier
  108. Triode as Voltage-Controled Dynamic Resistance in Compressor/Limiter
  109. RHSpud: Novice build
  110. 2A3 Amp - Not Another One...
  111. 12b4a pp
  112. replacing ECC82 with ECC99
  113. 2A3 input sensitivity
  114. Amp for JBL 2447 driver?
  115. Rare Philips 12ax7 Code Need Help
  116. Two quick questions on 35W4
  117. To convert Novar pins for Magnovale pins
  118. Mingda mc7r late design tweaking
  119. PSU for KT-90 PPP
  120. Noisy amp
  121. Book Recommendation for Newbies
  122. High power GU46 SE amplifier - help with certain issues
  123. BOYUU HIFI EXQUIS A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod
  124. Unknown SE output transformer wiring
  125. Class A output without all the heat cheat
  126. Grid leak bias - Easy to overload?
  127. How about LTP with degenerate resistor?
  128. 1200 vdc capacitor tube amp.
  129. Telefunken OPT
  130. Fixed bias question
  131. Question about loadline in Morgan Jones
  132. Please explain this power supply...
  133. 6SN7 - EL84 SE with interstage?
  134. 211 amp test. Square wave measures
  135. SAC thailand OPT for 211/845
  136. 6P21s
  137. 6L7M, Is there any use in audio?
  138. 958a Line Preamp
  139. What capacitors do i need for this?
  140. Experience of the TentLabs Bias control modules?
  141. Simple Line Stage Topology
  142. compound/hybrid amp
  143. 6CJ3's in full wave rectifier
  144. CCS anode load overcomes 3/2 law non-linearity
  145. EL84 PP OT design for amp project
  146. $3k o/p XFR
  147. Jadis Factory Tour
  148. Considerations for Tubelab Simplse
  149. "budget" headphone amp
  150. Power Pulse Tetrode for Audio
  151. The SE UL 6P41S USSR
  152. buzz from dacmagic on kit st70
  153. WE 350B and WE311B available
  154. How determine p-g1 capacitance in trioded pentode
  155. Why Is My Single Chassis #26 PreAmp So Stable!
  156. Rare tube
  157. Allan's rantings
  158. Tube Amp problem ?
  159. Tube preamp SS PS slight thump like dead wax on an LP
  160. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  161. SET's first ripple in a big wave ? Here it is . . .
  162. Fourier Chassis for the shipping costs
  163. 6P3S/6L6GB Amplifier from scrap parts :)
  164. Choke loaded 6ax4 bridge
  165. Transformer and choke orientation question
  166. Why some people want DC coupling in power amp?
  167. want to diy a tube preamp using only 12 volts help
  168. Russian 6p3s??
  169. Single-ended 8w amp
  170. Hovland HP 100
  171. Simple Line Stage Expanded
  172. Bridge Rectifier with Fullwave Tube
  173. Can anyone help diagnose this SOHA II amp channel?
  174. Schade and the 6C33C
  175. AMC 3030 annoying ripple noise
  176. Question and comments on SE vs PP by Eddie Vaughn
  177. 6080 PSE output Tx?
  178. Difference Between Self-Inverting Push Pull and Anti-Triode?
  179. Is this capacitor required?
  180. Why nowadays tube amplifier should play better than 1960's amplifiers?
  181. Aikido 12vac
  182. iPod to Adcom tube buffer
  183. Referencing a direct coupled output stage
  184. Long lead length to tube socket
  185. 6FH8 a strange tube for audio?
  186. Troubleshooting a µ-follower
  187. unison research unico thump on power on?
  188. CCS Not Working
  189. Allied 333 Hum
  190. EL34 Grid 3 connection
  191. The differential amplifier
  192. low power otl amplifier
  193. Using two stage opamp as first gain stage of power amp.
  194. Standing opts and lying pts?
  195. Tube substitition wanted
  196. Fatman Wi-Tube Hybrid Valve Amplifier with FatDock - No Output
  197. Operating point for 6SN7
  198. Which is the ultimate, perfect negative feedback amount you recommend in UL SE?
  199. Where to buy McIntosh Tube Amplifier Parts?
  200. comments/corrections on 6bg6 pp triode amp
  201. Question about LTP in Morgan Jones' book
  202. Matching 16 ohm loudspeaker into 8 ohm output transformer: can i do any modification?
  203. EL34 SE ultralinear configuration working as a triode: pro and cons
  204. First Build Help Needed - Transformer
  205. dynaco st70 headphone amp
  206. Velleman 4040 rebuild
  207. help needed for heater wiring of a 300B
  208. Best UX4 sockets?
  209. Filson 216 phono rework, advice please
  210. IRFS820B
  211. Help converting integrated amp to preamp
  212. 6N16B triodes: asking advice
  213. D3a IV
  214. stability of bias of KT88 in Xindak V30
  215. half 6SN7 / 6CG7 7pin mini substitute?
  216. Simple Line Stage
  217. 6L6GC redplating - what say you please?
  218. Yaqin MC-10L no bass response
  219. My first phono pre
  220. Fet rectifier?
  221. PSpice simulation
  222. Two-cases amplifier, question about power switch
  223. VTL bias problems compact 100
  224. Assembly Manual heathkit a7-b
  225. Question about CCS used in Morgan Jones' book.
  226. Layout question -- Do PS chokes inject hum into output caps?
  227. Pickering 132e record compensator
  228. Gain in Aikido for F4 + fe208ez?
  229. Audio note kit 1 power transformer
  230. DC Cancellation using Secondary Winding of Gapless OPT
  231. help for power transformer for scott 99d amp
  232. New rack mounted chassis
  233. Altec 342B bridging
  234. Kofi's Uniamp
  235. Please help with vexing grounding issue
  236. 6V6 class A2
  237. Buzzing Preamp
  238. 6922/E88CC in Parallel Mode without Cathode Resistors?
  239. 211 based on iGoliath Amplifier
  240. Art Audio UK dm vps
  241. Power supply conversion.
  242. EL84/6BQ5 tube amp project
  243. Little Bear P8 Amp Questions.
  244. 6k6 gt rca radiotron tube ?????
  245. The Guiguang 300B have good bass ?
  246. Ampex 300 Input Transformer
  247. Recap Heathkit A-7 amplifier.
  248. Testing KT-120
  249. 27GB5/PL504 The Same?
  250. Running Eico ST70 at 90 volts.

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