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  1. new s5 tube amp kit
  2. Stereo BusBar OK?
  3. Fi Primer 807
  4. Calculating power output in the design stage?
  5. Overdriving the grid of a triode
  6. Newb Questions RE: HS caps & B+ Bias
  7. mercury vapor... i love it!!!
  8. Interstage Couple 300B 811-3 SE amp
  9. PCB Trace Clearance for High Voltage
  10. youtube - tubes!
  11. Noob to the Leak ST20
  12. Unconditional stability, phase shift and feedback
  13. An almost DIY 6DJ8 Linestage
  14. Is Acrosound T-330 really good?
  15. My 1st amp just came to life......pics
  16. Russian tube power amp repair
  17. Unity coupled circuit amplifier.
  18. info about lectron JH50
  19. G.E. 6CA7/EL34 - any good?
  20. black face champ tubes
  21. SS Preamp and Tube Poweramp
  22. Values for OTL totem pole (cathode followers)
  23. 12au7 preamp will not work
  24. A Slew of Beginer Tube Questions
  25. calculating b+ voltage drop, decoupling?
  26. Another SET 2A3 in the world
  27. Help needed with Lectron JH 50 Amp
  28. Audio Note M2 regulator schematic
  29. 300b
  30. Three Simple Questions!!
  31. Edcor Transformers
  32. LTP with CCS - IM Distortion
  33. Strange 45 behaviour - help
  34. I have $250 to spend..what amp should I build?
  35. CCs plate load for mu follower 6sn7
  36. Best use of S-265 opt?
  37. what would be a reasonable price to pay for this tube ?
  38. Distortion Neutralizer for Odd Harmonics
  39. 6H13C preamp
  40. Testing tube for noise
  41. Optimal Umbilical Runs and Connections
  42. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  43. Film capacitors for decoupling
  44. Non-simultaneous Pentode anode/G2 turn-on
  45. ArnoldC's IT coupled 300B amplifier
  46. Ultralinear pse
  47. Using 0D3's for DC regulation in Aikido
  48. ECC40 preamp
  49. Newbie PS questions
  50. Preliminary 12AX7 guitar preamp
  51. Another cap replacement: uF changes..
  52. parallel EL84 transconductance amp
  53. Quad II Modified by Glenn Croft
  54. Wanted:Power transformers for Welborne DRD 300B amp
  55. Just finished testing my first 832A amp
  56. Russian Transformer cores
  57. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  58. 15E and plate curves
  59. Replacing 6N1P' s with 6922s or 7308s
  60. the "cheapo"
  61. OPT Quality Factors?
  62. 50CA10 pushpull amp
  63. New Hammonds?
  64. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  65. Voltage Gain Confusion!!
  66. is this ok to build???
  67. PSUD2 help needed
  68. It's raining 10M45's!
  69. Grid Leak Bias on small signal pentodes.
  70. Equalizing + & - output voltage?
  71. Help with ECF80 spice model
  72. Would a Williamson sound better with a CCS tail in the driver?
  73. low ac voltage question
  74. Aikido/SMPS/SKA SS
  75. values of ground(?) coupling caps in Aikido
  76. Please explain grid stoppers..
  77. Psud2 Help
  78. Appropriate Iron for 211 Triode SE
  79. does anyone know the resistance of a hammond 300bx transformer
  80. Help with Aikido B+ Bias layout
  81. 12v 6BF7 preamp design tested
  82. power supply PLEASE HELP
  83. power supply PLEASE HELP
  84. power supply PLEASE HELP
  85. tube amp
  86. 6AU8A, and assorted questions
  87. PPP OPT clarification
  88. ECC83/12AX7 Tube test query
  89. 0D3 shunt regulator for single ended duty
  90. where to buy parts (transformers and chokes)
  91. beefy choke -- please help
  92. 5W EL84 drive EL84 SE
  93. Calculate minimum load current of choke?
  94. Best Sounding Output Tube
  95. Best internal wiring for power
  96. Preamp with DHT
  97. bogen m60 and webster pa
  98. 6p13p schematic
  99. Buzzing Choke - Any Ideas?
  100. Floating A2 Bias
  101. Any SE project for 91db speaker?
  102. Hammond Mains Transformer - Center Tap Split
  103. TINA-TI Tube Simulation
  104. Fixed Bias v Ultrapath
  105. Traynor YBA200 6550 help!
  106. cathode follower asymmetric slew
  107. 6SN7 with transformer coupling
  108. 6AQ7 - why so cheap???
  109. Grommes 260
  110. heathkit aa-81 mono blocks
  111. feedbackless interstage p-p kt88 amp
  112. Using Horizontal Output Tubes - Power Supply
  113. 6e5c
  114. Mr Liang 845 Sound :(
  115. Test pentode grids without a tester
  116. Info required : GAMMA VALVE AMPS..
  117. 6SN7 plate voltage, current and lifespan
  118. Clarification of floating heater supply
  119. Changed a cap and lost some bass...?
  120. 6P9/6AG7 Triode Amplifier
  121. Chokes Designed for Choke Input PSU's
  122. Power trafo...
  123. Any value to modding a UL OPT to CFBK?
  124. One guitar, multiple amps at once?
  125. Rogers Cadet III Advice & Opinions Needed
  126. DCG5/5000GS Valve
  127. Morgan Jones on Google Books
  128. CCS for 12B4 linestage
  129. 6j9p
  130. philips hf 303 amp
  131. DIY tube testing Curve Tracer
  132. Amplifier impedance and pot selection
  133. Tube rise time and slew rate
  134. What's your favourite sounding DIY/kit tube amp?
  135. How to convert a 220v Chinese amp to 110v for US use
  136. look for schematic of 12v preamp ???
  137. Bevois Valley and parallel push pull
  138. Amp Wiring Color Code
  139. Xindak 805 monos $4700/pr USD
  140. A new DHT power supply idea
  141. 852 tube
  142. Tube Matcher help needed, ala PassDIY
  143. What's the difference?
  144. Cathode Feedback How-To?
  145. Is Thier Away To Clear Up Distortion???
  146. How much feedback for PP penthode?
  147. To regulate or not to regulate
  148. Anyone used interstage transformers for a 300B?
  149. Hissing Sound in KT88 Amp
  150. Go black or go around?
  151. Triodes that would like a 10K a-a OPT?
  152. Yaqin mc10L
  153. Cycline3 on the 12AU7
  154. How Would You Change This Soildstate Circuit To Tube
  155. Using existing transformer winding to provide and additional supply
  156. Magnetic shields for transformers
  157. First DIY job: Dual Tube Recording Preamp
  158. James Transformers
  159. Audiopax Model 7
  160. Isis 3030 Monoblocks
  161. From diode to tube rectification in my Aikido
  162. Williamson KT77 Question
  163. mu followers --- current --- please help
  164. need tube schematic
  165. switch snubber for Aikido
  166. Pioneer Tube Schematics
  167. Question about "bloaty" bass with SET and KT88's
  168. Ultron 6v6GT
  169. low power OTLs
  170. 6H30 equivalents
  171. What Would You Do?
  172. k-502/k-12m vs. Model 1 pcl82
  173. Shunting Pot
  174. Suggested replacements for Chinese tubes
  175. What to do with these.....
  176. ECL82 PP "reference" amp
  177. Heater TX proximity
  178. Quick question on the PP-C1 amp
  179. SET "interstage coupler" for First Watt F4
  180. 811A amp Class A2
  181. TVC before Input Transformer?
  182. Point-to-Point, Pointers
  183. Triode recommendation
  184. Schmitt & CCS
  185. Simple DC Heater Supply
  186. Output transformers ? sound quality ?
  187. KT88 Minimum Mounting Distance
  188. LED bias indicator
  189. Standby Switch
  190. chinese tube amp
  191. Broskie OTL
  192. Connecting a single plate to multiple screens?
  193. voltage divider+Aikido
  194. Wiring PSU and Aikido PCB
  195. Mission 300b parallel single ended
  196. Vietnam tube amplifier festival
  197. learning design but need help
  198. tutorial software
  199. Fisher 500C troubleshooting
  200. triode pentodes
  201. Deriving Secondary Voltages
  202. Here's the W-5M schematics . . .
  203. Question for Heathkit W-5M owners
  204. Classic 16.0
  205. 100 Ohm loudspeaker
  206. Are Srpp's Any Good (please Help)
  207. Blasphemy, I'm sure
  208. Decware ZSLA buffer -- worth cloning?
  209. Pse El84
  210. 6S19P Push-Pull Amplifier
  211. Class B Triodes
  212. Need a serious PP driver stage
  213. laptop->tubes?
  214. cathode follower -- damping factor (HELP please)
  215. Interstage X-former identification
  216. Multi-turn pot?
  217. 6L6G and 6L6GB differences?
  218. 6AK6 low power tube amp finished
  219. 7 pin X
  220. Replacing KT88 with KT90 - Beginner's questions
  221. way to estimate choke current rating?
  222. attn: Montreal, QC, Canada, OPAMPS!
  223. Hiss but no hum...
  224. Cap size for Aikido heater PS?
  225. Heathkit W-5M
  226. NTK " Teds tube mic"
  227. Making a Bias Voltage from B+ tape?
  228. Reg. Heater Circuit
  229. 6AG7 UL Curves
  230. Best SE output transformer for 300b - shootout
  231. Single ended amp from class A push-pull
  232. Yaqin MC-100b schematic diagram
  233. 12/24 volt tubes
  234. Favorite noval hi gain dual triode?
  235. AVO MKIII Tester Operation?
  236. Aikido users- anyone NOT have turn-off thump?
  237. Optimum value for volume control?
  238. VAL MPS mark II preamp gain reduction
  239. It is asked drawing 100 or 200 watts amplifier
  240. Mystery ST-70 Driver Board
  241. First Timer needs help
  242. Help. Bogen m60a
  243. grid-grounded preamp sound
  244. Rectifier switching / choke ringing noise
  245. Single Ended Amp Design -- Help Needed
  246. tube current
  247. Needed : ECF83, can anyone help ??
  248. Problem with a solid state CCS
  249. Looking for low-ish rp single triode
  250. Cleaning beverage out of inside tube amp

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