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  1. Using 0D3's for DC regulation in Aikido
  2. ECC40 preamp
  3. Newbie PS questions
  4. Preliminary 12AX7 guitar preamp
  5. Another cap replacement: uF changes..
  6. parallel EL84 transconductance amp
  7. Quad II Modified by Glenn Croft
  8. Wanted:Power transformers for Welborne DRD 300B amp
  9. Just finished testing my first 832A amp
  10. Russian Transformer cores
  11. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  12. 15E and plate curves
  13. Replacing 6N1P' s with 6922s or 7308s
  14. the "cheapo"
  15. OPT Quality Factors?
  16. 50CA10 pushpull amp
  17. New Hammonds?
  18. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  19. Voltage Gain Confusion!!
  20. is this ok to build???
  21. PSUD2 help needed
  22. It's raining 10M45's!
  23. Grid Leak Bias on small signal pentodes.
  24. Equalizing + & - output voltage?
  25. Help with ECF80 spice model
  26. Would a Williamson sound better with a CCS tail in the driver?
  27. low ac voltage question
  28. Aikido/SMPS/SKA SS
  29. values of ground(?) coupling caps in Aikido
  30. Please explain grid stoppers..
  31. Psud2 Help
  32. Appropriate Iron for 211 Triode SE
  33. does anyone know the resistance of a hammond 300bx transformer
  34. Help with Aikido B+ Bias layout
  35. 12v 6BF7 preamp design tested
  36. power supply PLEASE HELP
  37. power supply PLEASE HELP
  38. power supply PLEASE HELP
  39. tube amp
  40. 6AU8A, and assorted questions
  41. PPP OPT clarification
  42. ECC83/12AX7 Tube test query
  43. 0D3 shunt regulator for single ended duty
  44. where to buy parts (transformers and chokes)
  45. beefy choke -- please help
  46. 5W EL84 drive EL84 SE
  47. Calculate minimum load current of choke?
  48. Best Sounding Output Tube
  49. Best internal wiring for power
  50. Preamp with DHT
  51. bogen m60 and webster pa
  52. 6p13p schematic
  53. Buzzing Choke - Any Ideas?
  54. Floating A2 Bias
  55. Any SE project for 91db speaker?
  56. Hammond Mains Transformer - Center Tap Split
  57. TINA-TI Tube Simulation
  58. Fixed Bias v Ultrapath
  59. Traynor YBA200 6550 help!
  60. cathode follower asymmetric slew
  61. 6SN7 with transformer coupling
  62. 6AQ7 - why so cheap???
  63. Grommes 260
  64. heathkit aa-81 mono blocks
  65. feedbackless interstage p-p kt88 amp
  66. Using Horizontal Output Tubes - Power Supply
  67. 6e5c
  68. Mr Liang 845 Sound :(
  69. Test pentode grids without a tester
  70. Info required : GAMMA VALVE AMPS..
  71. 6SN7 plate voltage, current and lifespan
  72. Clarification of floating heater supply
  73. Changed a cap and lost some bass...?
  74. 6P9/6AG7 Triode Amplifier
  75. Chokes Designed for Choke Input PSU's
  76. Power trafo...
  77. Any value to modding a UL OPT to CFBK?
  78. One guitar, multiple amps at once?
  79. Rogers Cadet III Advice & Opinions Needed
  80. DCG5/5000GS Valve
  81. Morgan Jones on Google Books
  82. CCS for 12B4 linestage
  83. 6j9p
  84. philips hf 303 amp
  85. DIY tube testing Curve Tracer
  86. Amplifier impedance and pot selection
  87. Tube rise time and slew rate
  88. What's your favourite sounding DIY/kit tube amp?
  89. How to convert a 220v Chinese amp to 110v for US use
  90. look for schematic of 12v preamp ???
  91. Bevois Valley and parallel push pull
  92. Amp Wiring Color Code
  93. Xindak 805 monos $4700/pr USD
  94. A new DHT power supply idea
  95. 852 tube
  96. Tube Matcher help needed, ala PassDIY
  97. What's the difference?
  98. Cathode Feedback How-To?
  99. Is Thier Away To Clear Up Distortion???
  100. How much feedback for PP penthode?
  101. To regulate or not to regulate
  102. Anyone used interstage transformers for a 300B?
  103. Hissing Sound in KT88 Amp
  104. Go black or go around?
  105. Triodes that would like a 10K a-a OPT?
  106. Yaqin mc10L
  107. Cycline3 on the 12AU7
  108. How Would You Change This Soildstate Circuit To Tube
  109. Using existing transformer winding to provide and additional supply
  110. Magnetic shields for transformers
  111. First DIY job: Dual Tube Recording Preamp
  112. James Transformers
  113. Audiopax Model 7
  114. Isis 3030 Monoblocks
  115. From diode to tube rectification in my Aikido
  116. Williamson KT77 Question
  117. mu followers --- current --- please help
  118. need tube schematic
  119. switch snubber for Aikido
  120. Pioneer Tube Schematics
  121. Question about "bloaty" bass with SET and KT88's
  122. Ultron 6v6GT
  123. low power OTLs
  124. 6H30 equivalents
  125. What Would You Do?
  126. k-502/k-12m vs. Model 1 pcl82
  127. Shunting Pot
  128. Suggested replacements for Chinese tubes
  129. What to do with these.....
  130. ECL82 PP "reference" amp
  131. Heater TX proximity
  132. Quick question on the PP-C1 amp
  133. SET "interstage coupler" for First Watt F4
  134. 811A amp Class A2
  135. TVC before Input Transformer?
  136. Point-to-Point, Pointers
  137. Triode recommendation
  138. Schmitt & CCS
  139. Simple DC Heater Supply
  140. Output transformers ? sound quality ?
  141. KT88 Minimum Mounting Distance
  142. LED bias indicator
  143. Standby Switch
  144. chinese tube amp
  145. Broskie OTL
  146. Connecting a single plate to multiple screens?
  147. voltage divider+Aikido
  148. Wiring PSU and Aikido PCB
  149. Mission 300b parallel single ended
  150. Vietnam tube amplifier festival
  151. learning design but need help
  152. tutorial software
  153. Fisher 500C troubleshooting
  154. triode pentodes
  155. Deriving Secondary Voltages
  156. Here's the W-5M schematics . . .
  157. Question for Heathkit W-5M owners
  158. Classic 16.0
  159. 100 Ohm loudspeaker
  160. Are Srpp's Any Good (please Help)
  161. Blasphemy, I'm sure
  162. Decware ZSLA buffer -- worth cloning?
  163. Pse El84
  164. 6S19P Push-Pull Amplifier
  165. Class B Triodes
  166. Need a serious PP driver stage
  167. laptop->tubes?
  168. cathode follower -- damping factor (HELP please)
  169. Interstage X-former identification
  170. Multi-turn pot?
  171. 6L6G and 6L6GB differences?
  172. 6AK6 low power tube amp finished
  173. 7 pin X
  174. Replacing KT88 with KT90 - Beginner's questions
  175. way to estimate choke current rating?
  176. attn: Montreal, QC, Canada, OPAMPS!
  177. Hiss but no hum...
  178. Cap size for Aikido heater PS?
  179. Heathkit W-5M
  180. NTK " Teds tube mic"
  181. Making a Bias Voltage from B+ tape?
  182. Reg. Heater Circuit
  183. 6AG7 UL Curves
  184. Best SE output transformer for 300b - shootout
  185. Single ended amp from class A push-pull
  186. Yaqin MC-100b schematic diagram
  187. 12/24 volt tubes
  188. Favorite noval hi gain dual triode?
  189. AVO MKIII Tester Operation?
  190. Aikido users- anyone NOT have turn-off thump?
  191. Optimum value for volume control?
  192. VAL MPS mark II preamp gain reduction
  193. It is asked drawing 100 or 200 watts amplifier
  194. Mystery ST-70 Driver Board
  195. First Timer needs help
  196. Help. Bogen m60a
  197. grid-grounded preamp sound
  198. Rectifier switching / choke ringing noise
  199. Single Ended Amp Design -- Help Needed
  200. tube current
  201. Needed : ECF83, can anyone help ??
  202. Problem with a solid state CCS
  203. Looking for low-ish rp single triode
  204. Cleaning beverage out of inside tube amp
  205. Aikido problems!!!
  206. Another Power Supply Question
  207. 2a3 output transformers....
  208. yet another 6em7 amp
  209. zenith amp
  210. 6AG7 Amplifier
  211. Valve Power Supplies?
  212. tube tracer article
  213. PCB design techniques for Tube Amps
  214. Adjectives for tube sound!
  215. Question about Amperex tubes and a preamp
  216. I want to build a preamp for my dad.. thoughts?
  217. Constant Current DC Heater Supply
  218. Weekend Fun with Tubes - Guitar Preamp
  219. Which valves for MF CD-T
  220. 6C33C-EB / 6C33C-EV extended life ?
  221. Yamamoto A-08S RCA 45 tube amplifier original schematic
  222. Audiovalve RKV schematic (hybrid headphones amp)
  223. Music Angel EL34 XDSE
  224. Dynaco PAS Preamp Tone Controls
  225. build 805 or 845 se for ~$1000
  226. Built a quick 26 pre yesterday..nice so far,,
  227. An UL preamp idea.
  228. 6BX7 PSpice Model?
  229. using 24G and 3B28 in an od ball amp.......
  230. Tube Line Buffer
  231. Please help me build an amp for my father
  232. Why is my phono amp fatiguing?
  233. Heater current drawn by 8416
  234. want dead counterpoint SA100 SA-100 in good cosmetics
  235. Cathode Followers and Clipping
  236. transformer secondary connections
  237. imp amp
  238. Information 6DJ8
  239. Smoothing Cap = Noise Source?
  240. peavey ultra 60 footswitch wiring diagram
  241. 6S19P budget SE.
  242. adding reverb to a PA head
  243. My 2 new latest Dynaco ST-70's
  244. help with KT88 / mikaels SE amp
  245. twin reverb 100 watt
  246. adding LEDs to amp head
  247. What Is Line Level????
  248. chokes, caps, and long distance relationships
  249. First foray into tubes!!
  250. Simple Hi-end 845 amplifier

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