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  1. Any Tube heads near Central coast NSW
  2. Question
  3. Screen Supply For PP Amp
  4. Datasheets: RC coupled amp VS. typical characteristics
  5. How to calculate Tube Preamp output impedance?
  6. What vintage tube books do you own?
  7. re design of a SE tube amplifier
  8. NRI 70 tube chart
  9. Multimeter
  10. fizzy and unstable
  11. Russian spud amp
  12. Silly Question about 807
  13. Help with dared MP-15, please!
  14. tube tester B&k 606 Transformer brun need help
  15. Do tube curves tell most of the story?
  16. Sovtek 6B4-G
  17. Ultimate Amplifier
  18. How quiet is dead quiet?
  19. Max B+ for triode-connected KT88
  20. Acrosound Archive
  21. Hail to Vintage Power Transformer & Choke?
  22. 2a3 parafeed
  23. Kimmel mu stage
  24. 4043c
  25. Impedance quandary
  26. 6L6G Amp recommendations
  27. Beefing up the power supply
  28. System distortion and Single Ended Tube Amps
  29. TB3/1000 is alive ! ("European 833A")
  30. Another tube newb
  31. Decoding another recycled power trans
  32. parafeed plate choke calculation
  33. New to tube building / design - Input requested!
  34. tube preamp with hum??emf
  35. Which tubes for this OPT?
  36. Vacuum tube tester, do you own one?
  37. Ping salas re: LED baising
  38. Model train throttles?
  39. Microphonics that go away by themselves
  40. Variable cathode/plate resistors?
  41. 2 newbe questions
  42. 12B4A + LL1671 Linestage
  43. Distortion Analysis using an Oscilloscope
  44. Western Electric 'Harmonic Equalizer'
  45. Tube Newb Mc Intosh questions.
  46. AH NJoe TJOEB, valve compatibility issue
  47. Tubes: test as New? translation please
  48. new s5 tube amp kit
  49. Stereo BusBar OK?
  50. Fi Primer 807
  51. Calculating power output in the design stage?
  52. Overdriving the grid of a triode
  53. Newb Questions RE: HS caps & B+ Bias
  54. mercury vapor... i love it!!!
  55. Interstage Couple 300B 811-3 SE amp
  56. PCB Trace Clearance for High Voltage
  57. youtube - tubes!
  58. Noob to the Leak ST20
  59. Unconditional stability, phase shift and feedback
  60. An almost DIY 6DJ8 Linestage
  61. Is Acrosound T-330 really good?
  62. My 1st amp just came to life......pics
  63. Russian tube power amp repair
  64. Unity coupled circuit amplifier.
  65. info about lectron JH50
  66. G.E. 6CA7/EL34 - any good?
  67. SS Preamp and Tube Poweramp
  68. Values for OTL totem pole (cathode followers)
  69. 12au7 preamp will not work
  70. A Slew of Beginer Tube Questions
  71. calculating b+ voltage drop, decoupling?
  72. Another SET 2A3 in the world
  73. Help needed with Lectron JH 50 Amp
  74. Audio Note M2 regulator schematic
  75. 300b
  76. Three Simple Questions!!
  77. Edcor Transformers
  78. LTP with CCS - IM Distortion
  79. Strange 45 behaviour - help
  80. I have $250 to spend..what amp should I build?
  81. CCs plate load for mu follower 6sn7
  82. Best use of S-265 opt?
  83. what would be a reasonable price to pay for this tube ?
  84. Distortion Neutralizer for Odd Harmonics
  85. 6H13C preamp
  86. Testing tube for noise
  87. Optimal Umbilical Runs and Connections
  88. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  89. Film capacitors for decoupling
  90. Non-simultaneous Pentode anode/G2 turn-on
  91. ArnoldC's IT coupled 300B amplifier
  92. Ultralinear pse
  93. Using 0D3's for DC regulation in Aikido
  94. ECC40 preamp
  95. Newbie PS questions
  96. Another cap replacement: uF changes..
  97. parallel EL84 transconductance amp
  98. Quad II Modified by Glenn Croft
  99. Wanted:Power transformers for Welborne DRD 300B amp
  100. Just finished testing my first 832A amp
  101. Russian Transformer cores
  102. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  103. 15E and plate curves
  104. Replacing 6N1P' s with 6922s or 7308s
  105. the "cheapo"
  106. OPT Quality Factors?
  107. 50CA10 pushpull amp
  108. New Hammonds?
  109. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  110. Voltage Gain Confusion!!
  111. is this ok to build???
  112. PSUD2 help needed
  113. It's raining 10M45's!
  114. Grid Leak Bias on small signal pentodes.
  115. Equalizing + & - output voltage?
  116. Help with ECF80 spice model
  117. Would a Williamson sound better with a CCS tail in the driver?
  118. low ac voltage question
  119. Aikido/SMPS/SKA SS
  120. values of ground(?) coupling caps in Aikido
  121. Please explain grid stoppers..
  122. Psud2 Help
  123. Appropriate Iron for 211 Triode SE
  124. does anyone know the resistance of a hammond 300bx transformer
  125. Help with Aikido B+ Bias layout
  126. 12v 6BF7 preamp design tested
  127. power supply PLEASE HELP
  128. power supply PLEASE HELP
  129. power supply PLEASE HELP
  130. tube amp
  131. 6AU8A, and assorted questions
  132. PPP OPT clarification
  133. ECC83/12AX7 Tube test query
  134. 0D3 shunt regulator for single ended duty
  135. where to buy parts (transformers and chokes)
  136. beefy choke -- please help
  137. 5W EL84 drive EL84 SE
  138. Calculate minimum load current of choke?
  139. Best Sounding Output Tube
  140. Best internal wiring for power
  141. Preamp with DHT
  142. bogen m60 and webster pa
  143. 6p13p schematic
  144. Buzzing Choke - Any Ideas?
  145. Floating A2 Bias
  146. Any SE project for 91db speaker?
  147. Hammond Mains Transformer - Center Tap Split
  148. TINA-TI Tube Simulation
  149. Fixed Bias v Ultrapath
  150. cathode follower asymmetric slew
  151. 6SN7 with transformer coupling
  152. 6AQ7 - why so cheap???
  153. Grommes 260
  154. heathkit aa-81 mono blocks
  155. feedbackless interstage p-p kt88 amp
  156. Using Horizontal Output Tubes - Power Supply
  157. 6e5c
  158. Mr Liang 845 Sound :(
  159. Test pentode grids without a tester
  160. Info required : GAMMA VALVE AMPS..
  161. 6SN7 plate voltage, current and lifespan
  162. Clarification of floating heater supply
  163. Changed a cap and lost some bass...?
  164. 6P9/6AG7 Triode Amplifier
  165. Chokes Designed for Choke Input PSU's
  166. Power trafo...
  167. Any value to modding a UL OPT to CFBK?
  168. Rogers Cadet III Advice & Opinions Needed
  169. DCG5/5000GS Valve
  170. Morgan Jones on Google Books
  171. CCS for 12B4 linestage
  172. 6j9p
  173. philips hf 303 amp
  174. DIY tube testing Curve Tracer
  175. Amplifier impedance and pot selection
  176. Tube rise time and slew rate
  177. What's your favourite sounding DIY/kit tube amp?
  178. How to convert a 220v Chinese amp to 110v for US use
  179. look for schematic of 12v preamp ???
  180. Bevois Valley and parallel push pull
  181. Amp Wiring Color Code
  182. Xindak 805 monos $4700/pr USD
  183. A new DHT power supply idea
  184. 852 tube
  185. Tube Matcher help needed, ala PassDIY
  186. What's the difference?
  187. Cathode Feedback How-To?
  188. Is Thier Away To Clear Up Distortion???
  189. How much feedback for PP penthode?
  190. To regulate or not to regulate
  191. Anyone used interstage transformers for a 300B?
  192. Hissing Sound in KT88 Amp
  193. Go black or go around?
  194. Triodes that would like a 10K a-a OPT?
  195. Yaqin mc10L
  196. Cycline3 on the 12AU7
  197. How Would You Change This Soildstate Circuit To Tube
  198. Using existing transformer winding to provide and additional supply
  199. Magnetic shields for transformers
  200. First DIY job: Dual Tube Recording Preamp
  201. James Transformers
  202. Audiopax Model 7
  203. Isis 3030 Monoblocks
  204. From diode to tube rectification in my Aikido
  205. Williamson KT77 Question
  206. mu followers --- current --- please help
  207. need tube schematic
  208. switch snubber for Aikido
  209. Pioneer Tube Schematics
  210. Question about "bloaty" bass with SET and KT88's
  211. Ultron 6v6GT
  212. low power OTLs
  213. 6H30 equivalents
  214. What Would You Do?
  215. k-502/k-12m vs. Model 1 pcl82
  216. Shunting Pot
  217. Suggested replacements for Chinese tubes
  218. What to do with these.....
  219. ECL82 PP "reference" amp
  220. Heater TX proximity
  221. Quick question on the PP-C1 amp
  222. SET "interstage coupler" for First Watt F4
  223. 811A amp Class A2
  224. TVC before Input Transformer?
  225. Point-to-Point, Pointers
  226. Triode recommendation
  227. Schmitt & CCS
  228. Simple DC Heater Supply
  229. Output transformers ? sound quality ?
  230. KT88 Minimum Mounting Distance
  231. LED bias indicator
  232. Standby Switch
  233. chinese tube amp
  234. Broskie OTL
  235. Connecting a single plate to multiple screens?
  236. voltage divider+Aikido
  237. Wiring PSU and Aikido PCB
  238. Mission 300b parallel single ended
  239. Vietnam tube amplifier festival
  240. learning design but need help
  241. tutorial software
  242. Fisher 500C troubleshooting
  243. triode pentodes
  244. Deriving Secondary Voltages
  245. Here's the W-5M schematics . . .
  246. Question for Heathkit W-5M owners
  247. Classic 16.0
  248. 100 Ohm loudspeaker
  249. Are Srpp's Any Good (please Help)
  250. Blasphemy, I'm sure

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