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  1. Calculating power output in the design stage?
  2. Overdriving the grid of a triode
  3. Newb Questions RE: HS caps & B+ Bias
  4. mercury vapor... i love it!!!
  5. Interstage Couple 300B 811-3 SE amp
  6. PCB Trace Clearance for High Voltage
  7. youtube - tubes!
  8. Noob to the Leak ST20
  9. Unconditional stability, phase shift and feedback
  10. An almost DIY 6DJ8 Linestage
  11. Is Acrosound T-330 really good?
  12. My 1st amp just came to life......pics
  13. Russian tube power amp repair
  14. Unity coupled circuit amplifier.
  15. info about lectron JH50
  16. G.E. 6CA7/EL34 - any good?
  17. black face champ tubes
  18. SS Preamp and Tube Poweramp
  19. Values for OTL totem pole (cathode followers)
  20. 12au7 preamp will not work
  21. A Slew of Beginer Tube Questions
  22. calculating b+ voltage drop, decoupling?
  23. Another SET 2A3 in the world
  24. Help needed with Lectron JH 50 Amp
  25. Audio Note M2 regulator schematic
  26. 300b
  27. Three Simple Questions!!
  28. Edcor Transformers
  29. LTP with CCS - IM Distortion
  30. Strange 45 behaviour - help
  31. I have $250 to spend..what amp should I build?
  32. CCs plate load for mu follower 6sn7
  33. Best use of S-265 opt?
  34. what would be a reasonable price to pay for this tube ?
  35. Distortion Neutralizer for Odd Harmonics
  36. 6H13C preamp
  37. Testing tube for noise
  38. Optimal Umbilical Runs and Connections
  39. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  40. Film capacitors for decoupling
  41. Non-simultaneous Pentode anode/G2 turn-on
  42. ArnoldC's IT coupled 300B amplifier
  43. Ultralinear pse
  44. Using 0D3's for DC regulation in Aikido
  45. ECC40 preamp
  46. Newbie PS questions
  47. Preliminary 12AX7 guitar preamp
  48. Another cap replacement: uF changes..
  49. parallel EL84 transconductance amp
  50. Quad II Modified by Glenn Croft
  51. Wanted:Power transformers for Welborne DRD 300B amp
  52. Just finished testing my first 832A amp
  53. Russian Transformer cores
  54. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  55. 15E and plate curves
  56. Replacing 6N1P' s with 6922s or 7308s
  57. the "cheapo"
  58. OPT Quality Factors?
  59. 50CA10 pushpull amp
  60. New Hammonds?
  61. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  62. Voltage Gain Confusion!!
  63. is this ok to build???
  64. PSUD2 help needed
  65. It's raining 10M45's!
  66. Grid Leak Bias on small signal pentodes.
  67. Equalizing + & - output voltage?
  68. Help with ECF80 spice model
  69. Would a Williamson sound better with a CCS tail in the driver?
  70. low ac voltage question
  71. Aikido/SMPS/SKA SS
  72. values of ground(?) coupling caps in Aikido
  73. Please explain grid stoppers..
  74. Psud2 Help
  75. Appropriate Iron for 211 Triode SE
  76. does anyone know the resistance of a hammond 300bx transformer
  77. Help with Aikido B+ Bias layout
  78. 12v 6BF7 preamp design tested
  79. power supply PLEASE HELP
  80. power supply PLEASE HELP
  81. power supply PLEASE HELP
  82. tube amp
  83. 6AU8A, and assorted questions
  84. PPP OPT clarification
  85. ECC83/12AX7 Tube test query
  86. 0D3 shunt regulator for single ended duty
  87. where to buy parts (transformers and chokes)
  88. beefy choke -- please help
  89. 5W EL84 drive EL84 SE
  90. Calculate minimum load current of choke?
  91. Best Sounding Output Tube
  92. Best internal wiring for power
  93. Preamp with DHT
  94. bogen m60 and webster pa
  95. 6p13p schematic
  96. Buzzing Choke - Any Ideas?
  97. Floating A2 Bias
  98. Any SE project for 91db speaker?
  99. Hammond Mains Transformer - Center Tap Split
  100. TINA-TI Tube Simulation
  101. Fixed Bias v Ultrapath
  102. Traynor YBA200 6550 help!
  103. cathode follower asymmetric slew
  104. 6SN7 with transformer coupling
  105. 6AQ7 - why so cheap???
  106. Grommes 260
  107. heathkit aa-81 mono blocks
  108. feedbackless interstage p-p kt88 amp
  109. Using Horizontal Output Tubes - Power Supply
  110. 6e5c
  111. Mr Liang 845 Sound :(
  112. Test pentode grids without a tester
  113. Info required : GAMMA VALVE AMPS..
  114. 6SN7 plate voltage, current and lifespan
  115. Clarification of floating heater supply
  116. Changed a cap and lost some bass...?
  117. 6P9/6AG7 Triode Amplifier
  118. Chokes Designed for Choke Input PSU's
  119. Power trafo...
  120. Any value to modding a UL OPT to CFBK?
  121. One guitar, multiple amps at once?
  122. Rogers Cadet III Advice & Opinions Needed
  123. DCG5/5000GS Valve
  124. Morgan Jones on Google Books
  125. CCS for 12B4 linestage
  126. 6j9p
  127. philips hf 303 amp
  128. DIY tube testing Curve Tracer
  129. Amplifier impedance and pot selection
  130. Tube rise time and slew rate
  131. What's your favourite sounding DIY/kit tube amp?
  132. How to convert a 220v Chinese amp to 110v for US use
  133. look for schematic of 12v preamp ???
  134. Bevois Valley and parallel push pull
  135. Amp Wiring Color Code
  136. Xindak 805 monos $4700/pr USD
  137. A new DHT power supply idea
  138. 852 tube
  139. Tube Matcher help needed, ala PassDIY
  140. What's the difference?
  141. Cathode Feedback How-To?
  142. Is Thier Away To Clear Up Distortion???
  143. How much feedback for PP penthode?
  144. To regulate or not to regulate
  145. Anyone used interstage transformers for a 300B?
  146. Hissing Sound in KT88 Amp
  147. Go black or go around?
  148. Triodes that would like a 10K a-a OPT?
  149. Yaqin mc10L
  150. Cycline3 on the 12AU7
  151. How Would You Change This Soildstate Circuit To Tube
  152. Using existing transformer winding to provide and additional supply
  153. Magnetic shields for transformers
  154. First DIY job: Dual Tube Recording Preamp
  155. James Transformers
  156. Audiopax Model 7
  157. Isis 3030 Monoblocks
  158. From diode to tube rectification in my Aikido
  159. Williamson KT77 Question
  160. mu followers --- current --- please help
  161. need tube schematic
  162. switch snubber for Aikido
  163. Pioneer Tube Schematics
  164. Question about "bloaty" bass with SET and KT88's
  165. Ultron 6v6GT
  166. low power OTLs
  167. 6H30 equivalents
  168. What Would You Do?
  169. k-502/k-12m vs. Model 1 pcl82
  170. Shunting Pot
  171. Suggested replacements for Chinese tubes
  172. What to do with these.....
  173. ECL82 PP "reference" amp
  174. Heater TX proximity
  175. Quick question on the PP-C1 amp
  176. SET "interstage coupler" for First Watt F4
  177. 811A amp Class A2
  178. TVC before Input Transformer?
  179. Point-to-Point, Pointers
  180. Triode recommendation
  181. Schmitt & CCS
  182. Simple DC Heater Supply
  183. Output transformers ? sound quality ?
  184. KT88 Minimum Mounting Distance
  185. LED bias indicator
  186. Standby Switch
  187. chinese tube amp
  188. Broskie OTL
  189. Connecting a single plate to multiple screens?
  190. voltage divider+Aikido
  191. Wiring PSU and Aikido PCB
  192. Mission 300b parallel single ended
  193. Vietnam tube amplifier festival
  194. learning design but need help
  195. tutorial software
  196. Fisher 500C troubleshooting
  197. triode pentodes
  198. Deriving Secondary Voltages
  199. Here's the W-5M schematics . . .
  200. Question for Heathkit W-5M owners
  201. Classic 16.0
  202. 100 Ohm loudspeaker
  203. Are Srpp's Any Good (please Help)
  204. Blasphemy, I'm sure
  205. Decware ZSLA buffer -- worth cloning?
  206. Pse El84
  207. 6S19P Push-Pull Amplifier
  208. Class B Triodes
  209. Need a serious PP driver stage
  210. laptop->tubes?
  211. cathode follower -- damping factor (HELP please)
  212. Interstage X-former identification
  213. Multi-turn pot?
  214. 6L6G and 6L6GB differences?
  215. 6AK6 low power tube amp finished
  216. 7 pin X
  217. Replacing KT88 with KT90 - Beginner's questions
  218. way to estimate choke current rating?
  219. attn: Montreal, QC, Canada, OPAMPS!
  220. Hiss but no hum...
  221. Cap size for Aikido heater PS?
  222. Heathkit W-5M
  223. NTK " Teds tube mic"
  224. Making a Bias Voltage from B+ tape?
  225. Reg. Heater Circuit
  226. 6AG7 UL Curves
  227. Best SE output transformer for 300b - shootout
  228. Single ended amp from class A push-pull
  229. Yaqin MC-100b schematic diagram
  230. 12/24 volt tubes
  231. Favorite noval hi gain dual triode?
  232. AVO MKIII Tester Operation?
  233. Aikido users- anyone NOT have turn-off thump?
  234. Optimum value for volume control?
  235. VAL MPS mark II preamp gain reduction
  236. It is asked drawing 100 or 200 watts amplifier
  237. Mystery ST-70 Driver Board
  238. First Timer needs help
  239. Help. Bogen m60a
  240. grid-grounded preamp sound
  241. Rectifier switching / choke ringing noise
  242. Single Ended Amp Design -- Help Needed
  243. tube current
  244. Needed : ECF83, can anyone help ??
  245. Problem with a solid state CCS
  246. Looking for low-ish rp single triode
  247. Cleaning beverage out of inside tube amp
  248. Aikido problems!!!
  249. Another Power Supply Question
  250. 2a3 output transformers....

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