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

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