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  1. 5W EL84 drive EL84 SE
  2. Calculate minimum load current of choke?
  3. Best Sounding Output Tube
  4. Best internal wiring for power
  5. Preamp with DHT
  6. bogen m60 and webster pa
  7. 6p13p schematic
  8. Buzzing Choke - Any Ideas?
  9. Floating A2 Bias
  10. Any SE project for 91db speaker?
  11. Hammond Mains Transformer - Center Tap Split
  12. TINA-TI Tube Simulation
  13. Fixed Bias v Ultrapath
  14. Traynor YBA200 6550 help!
  15. cathode follower asymmetric slew
  16. 6SN7 with transformer coupling
  17. 6AQ7 - why so cheap???
  18. Grommes 260
  19. heathkit aa-81 mono blocks
  20. feedbackless interstage p-p kt88 amp
  21. Using Horizontal Output Tubes - Power Supply
  22. 6e5c
  23. Mr Liang 845 Sound :(
  24. Test pentode grids without a tester
  25. Info required : GAMMA VALVE AMPS..
  26. 6SN7 plate voltage, current and lifespan
  27. Clarification of floating heater supply
  28. Changed a cap and lost some bass...?
  29. 6P9/6AG7 Triode Amplifier
  30. Chokes Designed for Choke Input PSU's
  31. Power trafo...
  32. Any value to modding a UL OPT to CFBK?
  33. One guitar, multiple amps at once?
  34. Rogers Cadet III Advice & Opinions Needed
  35. DCG5/5000GS Valve
  36. Morgan Jones on Google Books
  37. CCS for 12B4 linestage
  38. 6j9p
  39. philips hf 303 amp
  40. DIY tube testing Curve Tracer
  41. Amplifier impedance and pot selection
  42. Tube rise time and slew rate
  43. What's your favourite sounding DIY/kit tube amp?
  44. How to convert a 220v Chinese amp to 110v for US use
  45. look for schematic of 12v preamp ???
  46. Bevois Valley and parallel push pull
  47. Amp Wiring Color Code
  48. Xindak 805 monos $4700/pr USD
  49. A new DHT power supply idea
  50. 852 tube
  51. Tube Matcher help needed, ala PassDIY
  52. What's the difference?
  53. Cathode Feedback How-To?
  54. Is Thier Away To Clear Up Distortion???
  55. How much feedback for PP penthode?
  56. To regulate or not to regulate
  57. Anyone used interstage transformers for a 300B?
  58. Hissing Sound in KT88 Amp
  59. Go black or go around?
  60. Triodes that would like a 10K a-a OPT?
  61. Yaqin mc10L
  62. Cycline3 on the 12AU7
  63. How Would You Change This Soildstate Circuit To Tube
  64. Using existing transformer winding to provide and additional supply
  65. Magnetic shields for transformers
  66. First DIY job: Dual Tube Recording Preamp
  67. James Transformers
  68. Audiopax Model 7
  69. Isis 3030 Monoblocks
  70. From diode to tube rectification in my Aikido
  71. Williamson KT77 Question
  72. mu followers --- current --- please help
  73. need tube schematic
  74. switch snubber for Aikido
  75. Pioneer Tube Schematics
  76. Question about "bloaty" bass with SET and KT88's
  77. Ultron 6v6GT
  78. low power OTLs
  79. 6H30 equivalents
  80. What Would You Do?
  81. k-502/k-12m vs. Model 1 pcl82
  82. Shunting Pot
  83. Suggested replacements for Chinese tubes
  84. What to do with these.....
  85. ECL82 PP "reference" amp
  86. Heater TX proximity
  87. Quick question on the PP-C1 amp
  88. SET "interstage coupler" for First Watt F4
  89. 811A amp Class A2
  90. TVC before Input Transformer?
  91. Point-to-Point, Pointers
  92. Triode recommendation
  93. Schmitt & CCS
  94. Simple DC Heater Supply
  95. Output transformers ? sound quality ?
  96. KT88 Minimum Mounting Distance
  97. LED bias indicator
  98. Standby Switch
  99. chinese tube amp
  100. Broskie OTL
  101. Connecting a single plate to multiple screens?
  102. voltage divider+Aikido
  103. Wiring PSU and Aikido PCB
  104. Mission 300b parallel single ended
  105. Vietnam tube amplifier festival
  106. learning design but need help
  107. tutorial software
  108. Fisher 500C troubleshooting
  109. triode pentodes
  110. Deriving Secondary Voltages
  111. Here's the W-5M schematics . . .
  112. Question for Heathkit W-5M owners
  113. Classic 16.0
  114. 100 Ohm loudspeaker
  115. Are Srpp's Any Good (please Help)
  116. Blasphemy, I'm sure
  117. Decware ZSLA buffer -- worth cloning?
  118. Pse El84
  119. 6S19P Push-Pull Amplifier
  120. Class B Triodes
  121. Need a serious PP driver stage
  122. laptop->tubes?
  123. cathode follower -- damping factor (HELP please)
  124. Interstage X-former identification
  125. Multi-turn pot?
  126. 6L6G and 6L6GB differences?
  127. 6AK6 low power tube amp finished
  128. 7 pin X
  129. Replacing KT88 with KT90 - Beginner's questions
  130. way to estimate choke current rating?
  131. attn: Montreal, QC, Canada, OPAMPS!
  132. Hiss but no hum...
  133. Cap size for Aikido heater PS?
  134. Heathkit W-5M
  135. NTK " Teds tube mic"
  136. Making a Bias Voltage from B+ tape?
  137. Reg. Heater Circuit
  138. 6AG7 UL Curves
  139. Best SE output transformer for 300b - shootout
  140. Single ended amp from class A push-pull
  141. Yaqin MC-100b schematic diagram
  142. 12/24 volt tubes
  143. Favorite noval hi gain dual triode?
  144. AVO MKIII Tester Operation?
  145. Aikido users- anyone NOT have turn-off thump?
  146. Optimum value for volume control?
  147. VAL MPS mark II preamp gain reduction
  148. It is asked drawing 100 or 200 watts amplifier
  149. Mystery ST-70 Driver Board
  150. First Timer needs help
  151. Help. Bogen m60a
  152. grid-grounded preamp sound
  153. Rectifier switching / choke ringing noise
  154. Single Ended Amp Design -- Help Needed
  155. tube current
  156. Needed : ECF83, can anyone help ??
  157. Problem with a solid state CCS
  158. Looking for low-ish rp single triode
  159. Cleaning beverage out of inside tube amp
  160. Aikido problems!!!
  161. Another Power Supply Question
  162. 2a3 output transformers....
  163. yet another 6em7 amp
  164. zenith amp
  165. 6AG7 Amplifier
  166. Valve Power Supplies?
  167. tube tracer article
  168. PCB design techniques for Tube Amps
  169. Adjectives for tube sound!
  170. Question about Amperex tubes and a preamp
  171. I want to build a preamp for my dad.. thoughts?
  172. Constant Current DC Heater Supply
  173. Weekend Fun with Tubes - Guitar Preamp
  174. Which valves for MF CD-T
  175. 6C33C-EB / 6C33C-EV extended life ?
  176. Yamamoto A-08S RCA 45 tube amplifier original schematic
  177. Audiovalve RKV schematic (hybrid headphones amp)
  178. Music Angel EL34 XDSE
  179. Dynaco PAS Preamp Tone Controls
  180. build 805 or 845 se for ~$1000
  181. Built a quick 26 pre yesterday..nice so far,,
  182. An UL preamp idea.
  183. 6BX7 PSpice Model?
  184. using 24G and 3B28 in an od ball amp.......
  185. Tube Line Buffer
  186. Please help me build an amp for my father
  187. Why is my phono amp fatiguing?
  188. Heater current drawn by 8416
  189. want dead counterpoint SA100 SA-100 in good cosmetics
  190. Cathode Followers and Clipping
  191. transformer secondary connections
  192. imp amp
  193. Information 6DJ8
  194. Smoothing Cap = Noise Source?
  195. peavey ultra 60 footswitch wiring diagram
  196. 6S19P budget SE.
  197. adding reverb to a PA head
  198. My 2 new latest Dynaco ST-70's
  199. help with KT88 / mikaels SE amp
  200. twin reverb 100 watt
  201. adding LEDs to amp head
  202. What Is Line Level????
  203. chokes, caps, and long distance relationships
  204. First foray into tubes!!
  205. Simple Hi-end 845 amplifier
  206. increased choke inductance - recommended?
  207. HELP PLEASE - with preamp design
  208. Alternative to James OPTs
  209. DIY preamp tube: Audio Research Reference 3???
  210. Crowhurst's Twin Coupled Amplifier
  211. 6lw6 tv sweep tube bias?
  212. 24V aikido build!
  213. magnavox tube radio
  214. New S5 L series kits
  215. Anyone has experience with Stranwood
  216. 6n6p amp
  217. DC Darling Amp Buzzing on both channels.
  218. 6SL7 EL34 300B amp
  219. I just installed Yeos (DIY Paradise) DC Blocker
  220. Measuring Cathode Current
  221. Need the Ogirin Circuit of Bruce Berman
  222. Input Choke Too Small
  223. Poodle gives clues to capacitor construction
  224. Would a line stage/preamp be beneficial? NEWBIE question
  225. 6p45c
  226. fanon pa amp schematic
  227. line stage confusion
  228. Hammond Transformer Secondary Connections
  229. Klimo Merlin LS Tube Power Supply
  230. OPT Design Assistante (EL84)
  231. Hum - can't find an answer by searching the forum
  232. Please critique my plans for a WE91 clone.
  233. Emission Labs 300B Mesh plate
  234. DRD Power Supply
  235. Octal Champ works - pls check design
  236. telefunken EL 34 audio tube
  237. Bias instability in Heathkit W-5M amp
  238. EL-34 instability in EICO HF-35 amp
  239. Russian paper in oil caps - any good?
  240. Matching Impedances
  241. Open-Source Audio Input Switch
  242. Phono pre amp RF problem
  243. Best CHEAP + best BEST current production EL34?
  244. New toy
  245. EL84 SEP schematic. Some questions.
  246. Referencing DC heaters to cathode
  247. Need advice on Val Audio amp with EL-34 Tubes
  248. Please help a newbie with PSU current requirement for Aikido linestage
  249. Loudspeaker noise from 300B
  250. Schematic for GU-50, EL34, 6J32P ???

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