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  1. question about beefing up my monoblocks
  2. multichannel tube amp
  3. Who can explain this FFT graph to me
  4. Equivalent Noise Resistance
  5. Any Tube heads near Central coast NSW
  6. Question
  7. Screen Supply For PP Amp
  8. Datasheets: RC coupled amp VS. typical characteristics
  9. How to calculate Tube Preamp output impedance?
  10. What vintage tube books do you own?
  11. re design of a SE tube amplifier
  12. NRI 70 tube chart
  13. Multimeter
  14. fizzy and unstable
  15. Russian spud amp
  16. Silly Question about 807
  17. Help with dared MP-15, please!
  18. tube tester B&k 606 Transformer brun need help
  19. Do tube curves tell most of the story?
  20. Sovtek 6B4-G
  21. Ultimate Amplifier
  22. How quiet is dead quiet?
  23. Max B+ for triode-connected KT88
  24. Acrosound Archive
  25. Hail to Vintage Power Transformer & Choke?
  26. 2a3 parafeed
  27. Kimmel mu stage
  28. 4043c
  29. Impedance quandary
  30. 6L6G Amp recommendations
  31. Beefing up the power supply
  32. System distortion and Single Ended Tube Amps
  33. TB3/1000 is alive ! ("European 833A")
  34. Another tube newb
  35. Decoding another recycled power trans
  36. parafeed plate choke calculation
  37. New to tube building / design - Input requested!
  38. tube preamp with hum??emf
  39. Which tubes for this OPT?
  40. Vacuum tube tester, do you own one?
  41. Ping salas re: LED baising
  42. Model train throttles?
  43. Microphonics that go away by themselves
  44. Variable cathode/plate resistors?
  45. 2 newbe questions
  46. 12B4A + LL1671 Linestage
  47. crate vintage "club 50" schematics needed
  48. Distortion Analysis using an Oscilloscope
  49. Western Electric 'Harmonic Equalizer'
  50. Tube Newb Mc Intosh questions.
  51. AH NJoe TJOEB, valve compatibility issue
  52. Tubes: test as New? translation please
  53. new s5 tube amp kit
  54. Stereo BusBar OK?
  55. Fi Primer 807
  56. Calculating power output in the design stage?
  57. Overdriving the grid of a triode
  58. Newb Questions RE: HS caps & B+ Bias
  59. mercury vapor... i love it!!!
  60. Interstage Couple 300B 811-3 SE amp
  61. PCB Trace Clearance for High Voltage
  62. youtube - tubes!
  63. Noob to the Leak ST20
  64. Unconditional stability, phase shift and feedback
  65. An almost DIY 6DJ8 Linestage
  66. Is Acrosound T-330 really good?
  67. My 1st amp just came to life......pics
  68. Russian tube power amp repair
  69. Unity coupled circuit amplifier.
  70. info about lectron JH50
  71. G.E. 6CA7/EL34 - any good?
  72. black face champ tubes
  73. SS Preamp and Tube Poweramp
  74. Values for OTL totem pole (cathode followers)
  75. 12au7 preamp will not work
  76. A Slew of Beginer Tube Questions
  77. calculating b+ voltage drop, decoupling?
  78. Another SET 2A3 in the world
  79. Help needed with Lectron JH 50 Amp
  80. Audio Note M2 regulator schematic
  81. 300b
  82. Three Simple Questions!!
  83. Edcor Transformers
  84. LTP with CCS - IM Distortion
  85. Strange 45 behaviour - help
  86. I have $250 to spend..what amp should I build?
  87. CCs plate load for mu follower 6sn7
  88. Best use of S-265 opt?
  89. what would be a reasonable price to pay for this tube ?
  90. Distortion Neutralizer for Odd Harmonics
  91. 6H13C preamp
  92. Testing tube for noise
  93. Optimal Umbilical Runs and Connections
  94. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  95. Film capacitors for decoupling
  96. Non-simultaneous Pentode anode/G2 turn-on
  97. ArnoldC's IT coupled 300B amplifier
  98. Ultralinear pse
  99. Using 0D3's for DC regulation in Aikido
  100. ECC40 preamp
  101. Newbie PS questions
  102. Preliminary 12AX7 guitar preamp
  103. Another cap replacement: uF changes..
  104. parallel EL84 transconductance amp
  105. Quad II Modified by Glenn Croft
  106. Wanted:Power transformers for Welborne DRD 300B amp
  107. Just finished testing my first 832A amp
  108. Russian Transformer cores
  109. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  110. 15E and plate curves
  111. Replacing 6N1P' s with 6922s or 7308s
  112. the "cheapo"
  113. OPT Quality Factors?
  114. 50CA10 pushpull amp
  115. New Hammonds?
  116. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  117. Voltage Gain Confusion!!
  118. is this ok to build???
  119. PSUD2 help needed
  120. It's raining 10M45's!
  121. Grid Leak Bias on small signal pentodes.
  122. Equalizing + & - output voltage?
  123. Help with ECF80 spice model
  124. Would a Williamson sound better with a CCS tail in the driver?
  125. low ac voltage question
  126. Aikido/SMPS/SKA SS
  127. values of ground(?) coupling caps in Aikido
  128. Please explain grid stoppers..
  129. Psud2 Help
  130. Appropriate Iron for 211 Triode SE
  131. does anyone know the resistance of a hammond 300bx transformer
  132. Help with Aikido B+ Bias layout
  133. 12v 6BF7 preamp design tested
  134. power supply PLEASE HELP
  135. power supply PLEASE HELP
  136. power supply PLEASE HELP
  137. tube amp
  138. 6AU8A, and assorted questions
  139. PPP OPT clarification
  140. ECC83/12AX7 Tube test query
  141. 0D3 shunt regulator for single ended duty
  142. where to buy parts (transformers and chokes)
  143. beefy choke -- please help
  144. 5W EL84 drive EL84 SE
  145. Calculate minimum load current of choke?
  146. Best Sounding Output Tube
  147. Best internal wiring for power
  148. Preamp with DHT
  149. bogen m60 and webster pa
  150. 6p13p schematic
  151. Buzzing Choke - Any Ideas?
  152. Floating A2 Bias
  153. Any SE project for 91db speaker?
  154. Hammond Mains Transformer - Center Tap Split
  155. TINA-TI Tube Simulation
  156. Fixed Bias v Ultrapath
  157. Traynor YBA200 6550 help!
  158. cathode follower asymmetric slew
  159. 6SN7 with transformer coupling
  160. 6AQ7 - why so cheap???
  161. Grommes 260
  162. heathkit aa-81 mono blocks
  163. feedbackless interstage p-p kt88 amp
  164. Using Horizontal Output Tubes - Power Supply
  165. 6e5c
  166. Mr Liang 845 Sound :(
  167. Test pentode grids without a tester
  168. Info required : GAMMA VALVE AMPS..
  169. 6SN7 plate voltage, current and lifespan
  170. Clarification of floating heater supply
  171. Changed a cap and lost some bass...?
  172. 6P9/6AG7 Triode Amplifier
  173. Chokes Designed for Choke Input PSU's
  174. Power trafo...
  175. Any value to modding a UL OPT to CFBK?
  176. One guitar, multiple amps at once?
  177. Rogers Cadet III Advice & Opinions Needed
  178. DCG5/5000GS Valve
  179. Morgan Jones on Google Books
  180. CCS for 12B4 linestage
  181. 6j9p
  182. philips hf 303 amp
  183. DIY tube testing Curve Tracer
  184. Amplifier impedance and pot selection
  185. Tube rise time and slew rate
  186. What's your favourite sounding DIY/kit tube amp?
  187. How to convert a 220v Chinese amp to 110v for US use
  188. look for schematic of 12v preamp ???
  189. Bevois Valley and parallel push pull
  190. Amp Wiring Color Code
  191. Xindak 805 monos $4700/pr USD
  192. A new DHT power supply idea
  193. 852 tube
  194. Tube Matcher help needed, ala PassDIY
  195. What's the difference?
  196. Cathode Feedback How-To?
  197. Is Thier Away To Clear Up Distortion???
  198. How much feedback for PP penthode?
  199. To regulate or not to regulate
  200. Anyone used interstage transformers for a 300B?
  201. Hissing Sound in KT88 Amp
  202. Go black or go around?
  203. Triodes that would like a 10K a-a OPT?
  204. Yaqin mc10L
  205. Cycline3 on the 12AU7
  206. How Would You Change This Soildstate Circuit To Tube
  207. Using existing transformer winding to provide and additional supply
  208. Magnetic shields for transformers
  209. First DIY job: Dual Tube Recording Preamp
  210. James Transformers
  211. Audiopax Model 7
  212. Isis 3030 Monoblocks
  213. From diode to tube rectification in my Aikido
  214. Williamson KT77 Question
  215. mu followers --- current --- please help
  216. need tube schematic
  217. switch snubber for Aikido
  218. Pioneer Tube Schematics
  219. Question about "bloaty" bass with SET and KT88's
  220. Ultron 6v6GT
  221. low power OTLs
  222. 6H30 equivalents
  223. What Would You Do?
  224. k-502/k-12m vs. Model 1 pcl82
  225. Shunting Pot
  226. Suggested replacements for Chinese tubes
  227. What to do with these.....
  228. ECL82 PP "reference" amp
  229. Heater TX proximity
  230. Quick question on the PP-C1 amp
  231. SET "interstage coupler" for First Watt F4
  232. 811A amp Class A2
  233. TVC before Input Transformer?
  234. Point-to-Point, Pointers
  235. Triode recommendation
  236. Schmitt & CCS
  237. Simple DC Heater Supply
  238. Output transformers ? sound quality ?
  239. KT88 Minimum Mounting Distance
  240. LED bias indicator
  241. Standby Switch
  242. chinese tube amp
  243. Broskie OTL
  244. Connecting a single plate to multiple screens?
  245. voltage divider+Aikido
  246. Wiring PSU and Aikido PCB
  247. Mission 300b parallel single ended
  248. Vietnam tube amplifier festival
  249. learning design but need help
  250. tutorial software

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