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  1. Rogers Cadet III Advice & Opinions Needed
  2. DCG5/5000GS Valve
  3. Morgan Jones on Google Books
  4. CCS for 12B4 linestage
  5. 6j9p
  6. philips hf 303 amp
  7. DIY tube testing Curve Tracer
  8. Amplifier impedance and pot selection
  9. Tube rise time and slew rate
  10. What's your favourite sounding DIY/kit tube amp?
  11. How to convert a 220v Chinese amp to 110v for US use
  12. look for schematic of 12v preamp ???
  13. Bevois Valley and parallel push pull
  14. Amp Wiring Color Code
  15. Xindak 805 monos $4700/pr USD
  16. A new DHT power supply idea
  17. 852 tube
  18. Tube Matcher help needed, ala PassDIY
  19. What's the difference?
  20. Cathode Feedback How-To?
  21. Is Thier Away To Clear Up Distortion???
  22. How much feedback for PP penthode?
  23. To regulate or not to regulate
  24. Anyone used interstage transformers for a 300B?
  25. Hissing Sound in KT88 Amp
  26. Go black or go around?
  27. Triodes that would like a 10K a-a OPT?
  28. Yaqin mc10L
  29. Cycline3 on the 12AU7
  30. How Would You Change This Soildstate Circuit To Tube
  31. Using existing transformer winding to provide and additional supply
  32. Magnetic shields for transformers
  33. First DIY job: Dual Tube Recording Preamp
  34. James Transformers
  35. Audiopax Model 7
  36. Isis 3030 Monoblocks
  37. From diode to tube rectification in my Aikido
  38. Williamson KT77 Question
  39. mu followers --- current --- please help
  40. need tube schematic
  41. switch snubber for Aikido
  42. Pioneer Tube Schematics
  43. Question about "bloaty" bass with SET and KT88's
  44. Ultron 6v6GT
  45. low power OTLs
  46. 6H30 equivalents
  47. What Would You Do?
  48. k-502/k-12m vs. Model 1 pcl82
  49. Shunting Pot
  50. Suggested replacements for Chinese tubes
  51. What to do with these.....
  52. ECL82 PP "reference" amp
  53. Heater TX proximity
  54. Quick question on the PP-C1 amp
  55. SET "interstage coupler" for First Watt F4
  56. 811A amp Class A2
  57. TVC before Input Transformer?
  58. Point-to-Point, Pointers
  59. Triode recommendation
  60. Schmitt & CCS
  61. Simple DC Heater Supply
  62. Output transformers ? sound quality ?
  63. KT88 Minimum Mounting Distance
  64. LED bias indicator
  65. Standby Switch
  66. chinese tube amp
  67. Broskie OTL
  68. Connecting a single plate to multiple screens?
  69. voltage divider+Aikido
  70. Wiring PSU and Aikido PCB
  71. Mission 300b parallel single ended
  72. Vietnam tube amplifier festival
  73. learning design but need help
  74. tutorial software
  75. Fisher 500C troubleshooting
  76. triode pentodes
  77. Deriving Secondary Voltages
  78. Here's the W-5M schematics . . .
  79. Question for Heathkit W-5M owners
  80. Classic 16.0
  81. 100 Ohm loudspeaker
  82. Are Srpp's Any Good (please Help)
  83. Blasphemy, I'm sure
  84. Decware ZSLA buffer -- worth cloning?
  85. Pse El84
  86. 6S19P Push-Pull Amplifier
  87. Class B Triodes
  88. Need a serious PP driver stage
  89. laptop->tubes?
  90. cathode follower -- damping factor (HELP please)
  91. Interstage X-former identification
  92. Multi-turn pot?
  93. 6L6G and 6L6GB differences?
  94. 6AK6 low power tube amp finished
  95. 7 pin X
  96. Replacing KT88 with KT90 - Beginner's questions
  97. way to estimate choke current rating?
  98. attn: Montreal, QC, Canada, OPAMPS!
  99. Hiss but no hum...
  100. Cap size for Aikido heater PS?
  101. Heathkit W-5M
  102. NTK " Teds tube mic"
  103. Making a Bias Voltage from B+ tape?
  104. Reg. Heater Circuit
  105. 6AG7 UL Curves
  106. Best SE output transformer for 300b - shootout
  107. Single ended amp from class A push-pull
  108. Yaqin MC-100b schematic diagram
  109. 12/24 volt tubes
  110. Favorite noval hi gain dual triode?
  111. AVO MKIII Tester Operation?
  112. Aikido users- anyone NOT have turn-off thump?
  113. Optimum value for volume control?
  114. VAL MPS mark II preamp gain reduction
  115. It is asked drawing 100 or 200 watts amplifier
  116. Mystery ST-70 Driver Board
  117. First Timer needs help
  118. Help. Bogen m60a
  119. grid-grounded preamp sound
  120. Rectifier switching / choke ringing noise
  121. Single Ended Amp Design -- Help Needed
  122. tube current
  123. Needed : ECF83, can anyone help ??
  124. Problem with a solid state CCS
  125. Looking for low-ish rp single triode
  126. Cleaning beverage out of inside tube amp
  127. Aikido problems!!!
  128. Another Power Supply Question
  129. 2a3 output transformers....
  130. yet another 6em7 amp
  131. zenith amp
  132. 6AG7 Amplifier
  133. Valve Power Supplies?
  134. tube tracer article
  135. PCB design techniques for Tube Amps
  136. Adjectives for tube sound!
  137. Question about Amperex tubes and a preamp
  138. I want to build a preamp for my dad.. thoughts?
  139. Constant Current DC Heater Supply
  140. Weekend Fun with Tubes - Guitar Preamp
  141. Which valves for MF CD-T
  142. 6C33C-EB / 6C33C-EV extended life ?
  143. Yamamoto A-08S RCA 45 tube amplifier original schematic
  144. Audiovalve RKV schematic (hybrid headphones amp)
  145. Music Angel EL34 XDSE
  146. Dynaco PAS Preamp Tone Controls
  147. build 805 or 845 se for ~$1000
  148. Built a quick 26 pre yesterday..nice so far,,
  149. An UL preamp idea.
  150. 6BX7 PSpice Model?
  151. using 24G and 3B28 in an od ball amp.......
  152. Tube Line Buffer
  153. Please help me build an amp for my father
  154. Why is my phono amp fatiguing?
  155. Heater current drawn by 8416
  156. want dead counterpoint SA100 SA-100 in good cosmetics
  157. Cathode Followers and Clipping
  158. transformer secondary connections
  159. imp amp
  160. Information 6DJ8
  161. Smoothing Cap = Noise Source?
  162. peavey ultra 60 footswitch wiring diagram
  163. 6S19P budget SE.
  164. adding reverb to a PA head
  165. My 2 new latest Dynaco ST-70's
  166. help with KT88 / mikaels SE amp
  167. twin reverb 100 watt
  168. adding LEDs to amp head
  169. What Is Line Level????
  170. chokes, caps, and long distance relationships
  171. First foray into tubes!!
  172. Simple Hi-end 845 amplifier
  173. increased choke inductance - recommended?
  174. HELP PLEASE - with preamp design
  175. Alternative to James OPTs
  176. DIY preamp tube: Audio Research Reference 3???
  177. Crowhurst's Twin Coupled Amplifier
  178. 6lw6 tv sweep tube bias?
  179. 24V aikido build!
  180. magnavox tube radio
  181. New S5 L series kits
  182. Anyone has experience with Stranwood
  183. 6n6p amp
  184. DC Darling Amp Buzzing on both channels.
  185. 6SL7 EL34 300B amp
  186. I just installed Yeos (DIY Paradise) DC Blocker
  187. Measuring Cathode Current
  188. Need the Ogirin Circuit of Bruce Berman
  189. Input Choke Too Small
  190. Poodle gives clues to capacitor construction
  191. Would a line stage/preamp be beneficial? NEWBIE question
  192. 6p45c
  193. fanon pa amp schematic
  194. line stage confusion
  195. Hammond Transformer Secondary Connections
  196. Klimo Merlin LS Tube Power Supply
  197. OPT Design Assistante (EL84)
  198. Hum - can't find an answer by searching the forum
  199. Please critique my plans for a WE91 clone.
  200. Emission Labs 300B Mesh plate
  201. DRD Power Supply
  202. Octal Champ works - pls check design
  203. telefunken EL 34 audio tube
  204. Bias instability in Heathkit W-5M amp
  205. EL-34 instability in EICO HF-35 amp
  206. Russian paper in oil caps - any good?
  207. Matching Impedances
  208. Open-Source Audio Input Switch
  209. Phono pre amp RF problem
  210. Best CHEAP + best BEST current production EL34?
  211. New toy
  212. EL84 SEP schematic. Some questions.
  213. Referencing DC heaters to cathode
  214. Need advice on Val Audio amp with EL-34 Tubes
  215. Please help a newbie with PSU current requirement for Aikido linestage
  216. Loudspeaker noise from 300B
  217. Schematic for GU-50, EL34, 6J32P ???
  218. alternative for heater / B+ references
  219. need a little help from some tube Gurus!!!
  220. EF86 + SPICE = no noise contribution?
  221. 6n1 tube = 6n1p
  222. One channel softer than the other, humming and buzzing
  223. Parallel Output Transformers
  224. Distortion from heater sag?
  225. Testing 5842 / 417a
  226. RH ECL86 Amp: Dave?
  227. High gain pentodes
  228. Tube Matching and Push-Pull
  229. What constitutes a leaky Coupling capacitor?
  230. Question on Input Connections
  231. s5electronics tube amp kit damping factor
  232. 6L6s and cabinet selections HELP!!!!
  233. source of nickel + silicon steel laminations
  234. Explanation for this problem?
  235. turn off thump
  236. Pop from amp when turning off
  237. Big Paper in Oil Caps
  238. Valve noobie asks for help / advice
  239. Polypropylene vs electrolytic in Power supply
  240. 6S4P vs 5842
  241. Calibrating Your Hickok Tube Tester
  242. Which 2A3 ?
  243. New design: 12V push-pull tube amplifier
  244. hybrid power supply: diode bridge into diode tube
  245. heater reference to B+ and buzzing trafo
  246. Hum cancelling scheme?
  247. Run a transformer backwards?
  248. FIVRE RRCF info needed
  249. Siemens Valvo ED-8000
  250. 6J5 and 6F6 SE - enough gain for guitar?

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