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  1. Schmitt & CCS
  2. Simple DC Heater Supply
  3. Output transformers ? sound quality ?
  4. KT88 Minimum Mounting Distance
  5. LED bias indicator
  6. Standby Switch
  7. chinese tube amp
  8. Broskie OTL
  9. Connecting a single plate to multiple screens?
  10. voltage divider+Aikido
  11. Wiring PSU and Aikido PCB
  12. Mission 300b parallel single ended
  13. Vietnam tube amplifier festival
  14. learning design but need help
  15. tutorial software
  16. Fisher 500C troubleshooting
  17. triode pentodes
  18. Deriving Secondary Voltages
  19. Here's the W-5M schematics . . .
  20. Question for Heathkit W-5M owners
  21. Classic 16.0
  22. 100 Ohm loudspeaker
  23. Are Srpp's Any Good (please Help)
  24. Blasphemy, I'm sure
  25. Decware ZSLA buffer -- worth cloning?
  26. Pse El84
  27. 6S19P Push-Pull Amplifier
  28. Class B Triodes
  29. Need a serious PP driver stage
  30. laptop->tubes?
  31. cathode follower -- damping factor (HELP please)
  32. Interstage X-former identification
  33. Multi-turn pot?
  34. 6L6G and 6L6GB differences?
  35. 6AK6 low power tube amp finished
  36. 7 pin X
  37. Replacing KT88 with KT90 - Beginner's questions
  38. way to estimate choke current rating?
  39. attn: Montreal, QC, Canada, OPAMPS!
  40. Hiss but no hum...
  41. Cap size for Aikido heater PS?
  42. Heathkit W-5M
  43. NTK " Teds tube mic"
  44. Making a Bias Voltage from B+ tape?
  45. Reg. Heater Circuit
  46. 6AG7 UL Curves
  47. Best SE output transformer for 300b - shootout
  48. Single ended amp from class A push-pull
  49. Yaqin MC-100b schematic diagram
  50. 12/24 volt tubes
  51. Favorite noval hi gain dual triode?
  52. AVO MKIII Tester Operation?
  53. Aikido users- anyone NOT have turn-off thump?
  54. Optimum value for volume control?
  55. VAL MPS mark II preamp gain reduction
  56. It is asked drawing 100 or 200 watts amplifier
  57. Mystery ST-70 Driver Board
  58. First Timer needs help
  59. Help. Bogen m60a
  60. grid-grounded preamp sound
  61. Rectifier switching / choke ringing noise
  62. Single Ended Amp Design -- Help Needed
  63. tube current
  64. Needed : ECF83, can anyone help ??
  65. Problem with a solid state CCS
  66. Looking for low-ish rp single triode
  67. Cleaning beverage out of inside tube amp
  68. Aikido problems!!!
  69. Another Power Supply Question
  70. 2a3 output transformers....
  71. yet another 6em7 amp
  72. zenith amp
  73. 6AG7 Amplifier
  74. Valve Power Supplies?
  75. tube tracer article
  76. PCB design techniques for Tube Amps
  77. Adjectives for tube sound!
  78. Question about Amperex tubes and a preamp
  79. I want to build a preamp for my dad.. thoughts?
  80. Constant Current DC Heater Supply
  81. Weekend Fun with Tubes - Guitar Preamp
  82. Which valves for MF CD-T
  83. 6C33C-EB / 6C33C-EV extended life ?
  84. Yamamoto A-08S RCA 45 tube amplifier original schematic
  85. Audiovalve RKV schematic (hybrid headphones amp)
  86. Music Angel EL34 XDSE
  87. Dynaco PAS Preamp Tone Controls
  88. build 805 or 845 se for ~$1000
  89. Built a quick 26 pre yesterday..nice so far,,
  90. An UL preamp idea.
  91. 6BX7 PSpice Model?
  92. using 24G and 3B28 in an od ball amp.......
  93. Tube Line Buffer
  94. Please help me build an amp for my father
  95. Why is my phono amp fatiguing?
  96. Heater current drawn by 8416
  97. want dead counterpoint SA100 SA-100 in good cosmetics
  98. Cathode Followers and Clipping
  99. transformer secondary connections
  100. imp amp
  101. Information 6DJ8
  102. Smoothing Cap = Noise Source?
  103. peavey ultra 60 footswitch wiring diagram
  104. 6S19P budget SE.
  105. adding reverb to a PA head
  106. My 2 new latest Dynaco ST-70's
  107. help with KT88 / mikaels SE amp
  108. twin reverb 100 watt
  109. adding LEDs to amp head
  110. What Is Line Level????
  111. chokes, caps, and long distance relationships
  112. First foray into tubes!!
  113. Simple Hi-end 845 amplifier
  114. increased choke inductance - recommended?
  115. HELP PLEASE - with preamp design
  116. Alternative to James OPTs
  117. DIY preamp tube: Audio Research Reference 3???
  118. Crowhurst's Twin Coupled Amplifier
  119. 6lw6 tv sweep tube bias?
  120. 24V aikido build!
  121. magnavox tube radio
  122. New S5 L series kits
  123. Anyone has experience with Stranwood
  124. 6n6p amp
  125. DC Darling Amp Buzzing on both channels.
  126. 6SL7 EL34 300B amp
  127. I just installed Yeos (DIY Paradise) DC Blocker
  128. Measuring Cathode Current
  129. Need the Ogirin Circuit of Bruce Berman
  130. Input Choke Too Small
  131. Poodle gives clues to capacitor construction
  132. Would a line stage/preamp be beneficial? NEWBIE question
  133. 6p45c
  134. fanon pa amp schematic
  135. line stage confusion
  136. Hammond Transformer Secondary Connections
  137. Klimo Merlin LS Tube Power Supply
  138. OPT Design Assistante (EL84)
  139. Hum - can't find an answer by searching the forum
  140. Please critique my plans for a WE91 clone.
  141. Emission Labs 300B Mesh plate
  142. DRD Power Supply
  143. Octal Champ works - pls check design
  144. telefunken EL 34 audio tube
  145. Bias instability in Heathkit W-5M amp
  146. EL-34 instability in EICO HF-35 amp
  147. Russian paper in oil caps - any good?
  148. Matching Impedances
  149. Open-Source Audio Input Switch
  150. Phono pre amp RF problem
  151. Best CHEAP + best BEST current production EL34?
  152. New toy
  153. EL84 SEP schematic. Some questions.
  154. Referencing DC heaters to cathode
  155. Need advice on Val Audio amp with EL-34 Tubes
  156. Please help a newbie with PSU current requirement for Aikido linestage
  157. Loudspeaker noise from 300B
  158. Schematic for GU-50, EL34, 6J32P ???
  159. alternative for heater / B+ references
  160. need a little help from some tube Gurus!!!
  161. EF86 + SPICE = no noise contribution?
  162. 6n1 tube = 6n1p
  163. One channel softer than the other, humming and buzzing
  164. Parallel Output Transformers
  165. Distortion from heater sag?
  166. Testing 5842 / 417a
  167. RH ECL86 Amp: Dave?
  168. High gain pentodes
  169. Tube Matching and Push-Pull
  170. What constitutes a leaky Coupling capacitor?
  171. Question on Input Connections
  172. s5electronics tube amp kit damping factor
  173. 6L6s and cabinet selections HELP!!!!
  174. source of nickel + silicon steel laminations
  175. Explanation for this problem?
  176. turn off thump
  177. Pop from amp when turning off
  178. Big Paper in Oil Caps
  179. Valve noobie asks for help / advice
  180. Polypropylene vs electrolytic in Power supply
  181. 6S4P vs 5842
  182. Calibrating Your Hickok Tube Tester
  183. Which 2A3 ?
  184. New design: 12V push-pull tube amplifier
  185. hybrid power supply: diode bridge into diode tube
  186. heater reference to B+ and buzzing trafo
  187. Hum cancelling scheme?
  188. Run a transformer backwards?
  189. FIVRE RRCF info needed
  190. Siemens Valvo ED-8000
  191. 6J5 and 6F6 SE - enough gain for guitar?
  192. My last Zamir Aleph
  193. Questions about first tube PSU!
  194. Looking for site
  195. Heater voltage mismatch
  196. Contacting Pete Millet for 813 PSU?
  197. Suggestions for first tube project?
  198. Just Saying Howdy
  199. Wiring a tube rectifier PSU
  200. Looking for a small yet powerful pentode / dual triode?
  201. Earth Bus Wire - Where can I get it?
  202. Tube Amp Startup
  203. 45 amplifier
  204. Noob saying Hi...
  205. Maida regulator
  206. Sensitivity limiter in Bogen MX60a
  207. Just finished first amp
  208. 6080 / 6AS7G power amplifier
  209. Schematics
  210. General questions before finishing up ST-35 clone
  211. Will a 12AX7 sub. for 12DW7/7247?
  212. Deutsche Wurlitzer Lyric Jukebox?
  213. Made in China buyer beware...
  214. Variac to power-up Beveridge OTLs?
  215. Any ideas on how old this is?
  216. Philips Tube radio
  217. Improve Avel toroid in OTL amp
  218. tube pre amp mods in queensland, australia
  219. 6SL7GT pre-amp
  220. Aikido circuit question
  221. question
  222. Edcor OPT's w/ SimpleSE
  223. Please check this PSU
  224. met. MKP in oil capacitors for PSU?
  225. EH EL34's at +600V?
  226. The Infamous Kay 703C! - Help finding an output transformer?
  227. MOT's as output transformers?
  228. Grain oriented silicon steel core data needed
  229. Gibson reverb driver transformer
  230. PSUD II help
  231. Edcor In SE Guitar Amp
  232. Tube curves
  233. S-5 electronics amp kits
  234. up-to-date El Cheapo schematic
  235. unknown output trannie
  236. Help needed with KT88 Amp design
  237. Bogen MX60a
  238. AIKIDO - Low-volage with buffer version
  239. 6N6P cascode calculation
  240. 866a Min operating voltages
  241. new 6V6 amp
  242. Tube-based CCS- 0.2uF cap OK?
  243. DHT filament PSU: What would you do?
  244. PSU problem
  245. 811A se amp using a solid state driver
  246. ECC83 - Long Plate vs Short Plate
  247. Tube Matching
  248. Cascoded mu-follower
  249. DIY speaker choice for SE
  250. Output transformer wanted

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