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  1. Western Electric 'Harmonic Equalizer'
  2. Tube Newb Mc Intosh questions.
  3. AH NJoe TJOEB, valve compatibility issue
  4. Tubes: test as New? translation please
  5. new s5 tube amp kit
  6. Stereo BusBar OK?
  7. Fi Primer 807
  8. Calculating power output in the design stage?
  9. Overdriving the grid of a triode
  10. Newb Questions RE: HS caps & B+ Bias
  11. mercury vapor... i love it!!!
  12. Interstage Couple 300B 811-3 SE amp
  13. PCB Trace Clearance for High Voltage
  14. youtube - tubes!
  15. Noob to the Leak ST20
  16. Unconditional stability, phase shift and feedback
  17. An almost DIY 6DJ8 Linestage
  18. Is Acrosound T-330 really good?
  19. My 1st amp just came to life......pics
  20. Russian tube power amp repair
  21. Unity coupled circuit amplifier.
  22. info about lectron JH50
  23. G.E. 6CA7/EL34 - any good?
  24. black face champ tubes
  25. SS Preamp and Tube Poweramp
  26. Values for OTL totem pole (cathode followers)
  27. 12au7 preamp will not work
  28. A Slew of Beginer Tube Questions
  29. calculating b+ voltage drop, decoupling?
  30. Another SET 2A3 in the world
  31. Help needed with Lectron JH 50 Amp
  32. Audio Note M2 regulator schematic
  33. 300b
  34. Three Simple Questions!!
  35. Edcor Transformers
  36. LTP with CCS - IM Distortion
  37. Strange 45 behaviour - help
  38. I have $250 to spend..what amp should I build?
  39. CCs plate load for mu follower 6sn7
  40. Best use of S-265 opt?
  41. what would be a reasonable price to pay for this tube ?
  42. Distortion Neutralizer for Odd Harmonics
  43. 6H13C preamp
  44. Testing tube for noise
  45. Optimal Umbilical Runs and Connections
  46. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  47. Film capacitors for decoupling
  48. Non-simultaneous Pentode anode/G2 turn-on
  49. ArnoldC's IT coupled 300B amplifier
  50. Ultralinear pse
  51. Using 0D3's for DC regulation in Aikido
  52. ECC40 preamp
  53. Newbie PS questions
  54. Preliminary 12AX7 guitar preamp
  55. Another cap replacement: uF changes..
  56. parallel EL84 transconductance amp
  57. Quad II Modified by Glenn Croft
  58. Wanted:Power transformers for Welborne DRD 300B amp
  59. Just finished testing my first 832A amp
  60. Russian Transformer cores
  61. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  62. 15E and plate curves
  63. Replacing 6N1P' s with 6922s or 7308s
  64. the "cheapo"
  65. OPT Quality Factors?
  66. 50CA10 pushpull amp
  67. New Hammonds?
  68. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  69. Voltage Gain Confusion!!
  70. is this ok to build???
  71. PSUD2 help needed
  72. It's raining 10M45's!
  73. Grid Leak Bias on small signal pentodes.
  74. Equalizing + & - output voltage?
  75. Help with ECF80 spice model
  76. Would a Williamson sound better with a CCS tail in the driver?
  77. low ac voltage question
  78. Aikido/SMPS/SKA SS
  79. values of ground(?) coupling caps in Aikido
  80. Please explain grid stoppers..
  81. Psud2 Help
  82. Appropriate Iron for 211 Triode SE
  83. does anyone know the resistance of a hammond 300bx transformer
  84. Help with Aikido B+ Bias layout
  85. 12v 6BF7 preamp design tested
  86. power supply PLEASE HELP
  87. power supply PLEASE HELP
  88. power supply PLEASE HELP
  89. tube amp
  90. 6AU8A, and assorted questions
  91. PPP OPT clarification
  92. ECC83/12AX7 Tube test query
  93. 0D3 shunt regulator for single ended duty
  94. where to buy parts (transformers and chokes)
  95. beefy choke -- please help
  96. 5W EL84 drive EL84 SE
  97. Calculate minimum load current of choke?
  98. Best Sounding Output Tube
  99. Best internal wiring for power
  100. Preamp with DHT
  101. bogen m60 and webster pa
  102. 6p13p schematic
  103. Buzzing Choke - Any Ideas?
  104. Floating A2 Bias
  105. Any SE project for 91db speaker?
  106. Hammond Mains Transformer - Center Tap Split
  107. TINA-TI Tube Simulation
  108. Fixed Bias v Ultrapath
  109. Traynor YBA200 6550 help!
  110. cathode follower asymmetric slew
  111. 6SN7 with transformer coupling
  112. 6AQ7 - why so cheap???
  113. Grommes 260
  114. heathkit aa-81 mono blocks
  115. feedbackless interstage p-p kt88 amp
  116. Using Horizontal Output Tubes - Power Supply
  117. 6e5c
  118. Mr Liang 845 Sound :(
  119. Test pentode grids without a tester
  120. Info required : GAMMA VALVE AMPS..
  121. 6SN7 plate voltage, current and lifespan
  122. Clarification of floating heater supply
  123. Changed a cap and lost some bass...?
  124. 6P9/6AG7 Triode Amplifier
  125. Chokes Designed for Choke Input PSU's
  126. Power trafo...
  127. Any value to modding a UL OPT to CFBK?
  128. One guitar, multiple amps at once?
  129. Rogers Cadet III Advice & Opinions Needed
  130. DCG5/5000GS Valve
  131. Morgan Jones on Google Books
  132. CCS for 12B4 linestage
  133. 6j9p
  134. philips hf 303 amp
  135. DIY tube testing Curve Tracer
  136. Amplifier impedance and pot selection
  137. Tube rise time and slew rate
  138. What's your favourite sounding DIY/kit tube amp?
  139. How to convert a 220v Chinese amp to 110v for US use
  140. look for schematic of 12v preamp ???
  141. Bevois Valley and parallel push pull
  142. Amp Wiring Color Code
  143. Xindak 805 monos $4700/pr USD
  144. A new DHT power supply idea
  145. 852 tube
  146. Tube Matcher help needed, ala PassDIY
  147. What's the difference?
  148. Cathode Feedback How-To?
  149. Is Thier Away To Clear Up Distortion???
  150. How much feedback for PP penthode?
  151. To regulate or not to regulate
  152. Anyone used interstage transformers for a 300B?
  153. Hissing Sound in KT88 Amp
  154. Go black or go around?
  155. Triodes that would like a 10K a-a OPT?
  156. Yaqin mc10L
  157. Cycline3 on the 12AU7
  158. How Would You Change This Soildstate Circuit To Tube
  159. Using existing transformer winding to provide and additional supply
  160. Magnetic shields for transformers
  161. First DIY job: Dual Tube Recording Preamp
  162. James Transformers
  163. Audiopax Model 7
  164. Isis 3030 Monoblocks
  165. From diode to tube rectification in my Aikido
  166. Williamson KT77 Question
  167. mu followers --- current --- please help
  168. need tube schematic
  169. switch snubber for Aikido
  170. Pioneer Tube Schematics
  171. Question about "bloaty" bass with SET and KT88's
  172. Ultron 6v6GT
  173. low power OTLs
  174. 6H30 equivalents
  175. What Would You Do?
  176. k-502/k-12m vs. Model 1 pcl82
  177. Shunting Pot
  178. Suggested replacements for Chinese tubes
  179. What to do with these.....
  180. ECL82 PP "reference" amp
  181. Heater TX proximity
  182. Quick question on the PP-C1 amp
  183. SET "interstage coupler" for First Watt F4
  184. 811A amp Class A2
  185. TVC before Input Transformer?
  186. Point-to-Point, Pointers
  187. Triode recommendation
  188. Schmitt & CCS
  189. Simple DC Heater Supply
  190. Output transformers ? sound quality ?
  191. KT88 Minimum Mounting Distance
  192. LED bias indicator
  193. Standby Switch
  194. chinese tube amp
  195. Broskie OTL
  196. Connecting a single plate to multiple screens?
  197. voltage divider+Aikido
  198. Wiring PSU and Aikido PCB
  199. Mission 300b parallel single ended
  200. Vietnam tube amplifier festival
  201. learning design but need help
  202. tutorial software
  203. Fisher 500C troubleshooting
  204. triode pentodes
  205. Deriving Secondary Voltages
  206. Here's the W-5M schematics . . .
  207. Question for Heathkit W-5M owners
  208. Classic 16.0
  209. 100 Ohm loudspeaker
  210. Are Srpp's Any Good (please Help)
  211. Blasphemy, I'm sure
  212. Decware ZSLA buffer -- worth cloning?
  213. Pse El84
  214. 6S19P Push-Pull Amplifier
  215. Class B Triodes
  216. Need a serious PP driver stage
  217. laptop->tubes?
  218. cathode follower -- damping factor (HELP please)
  219. Interstage X-former identification
  220. Multi-turn pot?
  221. 6L6G and 6L6GB differences?
  222. 6AK6 low power tube amp finished
  223. 7 pin X
  224. Replacing KT88 with KT90 - Beginner's questions
  225. way to estimate choke current rating?
  226. attn: Montreal, QC, Canada, OPAMPS!
  227. Hiss but no hum...
  228. Cap size for Aikido heater PS?
  229. Heathkit W-5M
  230. NTK " Teds tube mic"
  231. Making a Bias Voltage from B+ tape?
  232. Reg. Heater Circuit
  233. 6AG7 UL Curves
  234. Best SE output transformer for 300b - shootout
  235. Single ended amp from class A push-pull
  236. Yaqin MC-100b schematic diagram
  237. 12/24 volt tubes
  238. Favorite noval hi gain dual triode?
  239. AVO MKIII Tester Operation?
  240. Aikido users- anyone NOT have turn-off thump?
  241. Optimum value for volume control?
  242. VAL MPS mark II preamp gain reduction
  243. It is asked drawing 100 or 200 watts amplifier
  244. Mystery ST-70 Driver Board
  245. First Timer needs help
  246. Help. Bogen m60a
  247. grid-grounded preamp sound
  248. Rectifier switching / choke ringing noise
  249. Single Ended Amp Design -- Help Needed
  250. tube current

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