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  1. ECL82 PP "reference" amp
  2. Heater TX proximity
  3. Quick question on the PP-C1 amp
  4. SET "interstage coupler" for First Watt F4
  5. 811A amp Class A2
  6. TVC before Input Transformer?
  7. Point-to-Point, Pointers
  8. Triode recommendation
  9. Schmitt & CCS
  10. Simple DC Heater Supply
  11. Output transformers ? sound quality ?
  12. KT88 Minimum Mounting Distance
  13. LED bias indicator
  14. Standby Switch
  15. chinese tube amp
  16. Broskie OTL
  17. Connecting a single plate to multiple screens?
  18. voltage divider+Aikido
  19. Wiring PSU and Aikido PCB
  20. Mission 300b parallel single ended
  21. Vietnam tube amplifier festival
  22. learning design but need help
  23. tutorial software
  24. Fisher 500C troubleshooting
  25. triode pentodes
  26. Deriving Secondary Voltages
  27. Here's the W-5M schematics . . .
  28. Question for Heathkit W-5M owners
  29. Classic 16.0
  30. 100 Ohm loudspeaker
  31. Are Srpp's Any Good (please Help)
  32. Blasphemy, I'm sure
  33. Decware ZSLA buffer -- worth cloning?
  34. Pse El84
  35. 6S19P Push-Pull Amplifier
  36. Class B Triodes
  37. Need a serious PP driver stage
  38. laptop->tubes?
  39. cathode follower -- damping factor (HELP please)
  40. Interstage X-former identification
  41. Multi-turn pot?
  42. 6L6G and 6L6GB differences?
  43. 6AK6 low power tube amp finished
  44. 7 pin X
  45. Replacing KT88 with KT90 - Beginner's questions
  46. way to estimate choke current rating?
  47. attn: Montreal, QC, Canada, OPAMPS!
  48. Hiss but no hum...
  49. Cap size for Aikido heater PS?
  50. Heathkit W-5M
  51. NTK " Teds tube mic"
  52. Making a Bias Voltage from B+ tape?
  53. Reg. Heater Circuit
  54. 6AG7 UL Curves
  55. Best SE output transformer for 300b - shootout
  56. Single ended amp from class A push-pull
  57. Yaqin MC-100b schematic diagram
  58. 12/24 volt tubes
  59. Favorite noval hi gain dual triode?
  60. AVO MKIII Tester Operation?
  61. Aikido users- anyone NOT have turn-off thump?
  62. Optimum value for volume control?
  63. VAL MPS mark II preamp gain reduction
  64. It is asked drawing 100 or 200 watts amplifier
  65. Mystery ST-70 Driver Board
  66. First Timer needs help
  67. Help. Bogen m60a
  68. grid-grounded preamp sound
  69. Rectifier switching / choke ringing noise
  70. Single Ended Amp Design -- Help Needed
  71. tube current
  72. Needed : ECF83, can anyone help ??
  73. Problem with a solid state CCS
  74. Looking for low-ish rp single triode
  75. Cleaning beverage out of inside tube amp
  76. Aikido problems!!!
  77. Another Power Supply Question
  78. 2a3 output transformers....
  79. yet another 6em7 amp
  80. zenith amp
  81. 6AG7 Amplifier
  82. Valve Power Supplies?
  83. tube tracer article
  84. PCB design techniques for Tube Amps
  85. Adjectives for tube sound!
  86. Question about Amperex tubes and a preamp
  87. I want to build a preamp for my dad.. thoughts?
  88. Constant Current DC Heater Supply
  89. Weekend Fun with Tubes - Guitar Preamp
  90. Which valves for MF CD-T
  91. 6C33C-EB / 6C33C-EV extended life ?
  92. Yamamoto A-08S RCA 45 tube amplifier original schematic
  93. Audiovalve RKV schematic (hybrid headphones amp)
  94. Music Angel EL34 XDSE
  95. Dynaco PAS Preamp Tone Controls
  96. build 805 or 845 se for ~$1000
  97. Built a quick 26 pre yesterday..nice so far,,
  98. An UL preamp idea.
  99. 6BX7 PSpice Model?
  100. using 24G and 3B28 in an od ball amp.......
  101. Tube Line Buffer
  102. Please help me build an amp for my father
  103. Why is my phono amp fatiguing?
  104. Heater current drawn by 8416
  105. want dead counterpoint SA100 SA-100 in good cosmetics
  106. Cathode Followers and Clipping
  107. transformer secondary connections
  108. imp amp
  109. Information 6DJ8
  110. Smoothing Cap = Noise Source?
  111. peavey ultra 60 footswitch wiring diagram
  112. 6S19P budget SE.
  113. adding reverb to a PA head
  114. My 2 new latest Dynaco ST-70's
  115. help with KT88 / mikaels SE amp
  116. twin reverb 100 watt
  117. adding LEDs to amp head
  118. What Is Line Level????
  119. chokes, caps, and long distance relationships
  120. First foray into tubes!!
  121. Simple Hi-end 845 amplifier
  122. increased choke inductance - recommended?
  123. HELP PLEASE - with preamp design
  124. Alternative to James OPTs
  125. DIY preamp tube: Audio Research Reference 3???
  126. Crowhurst's Twin Coupled Amplifier
  127. 6lw6 tv sweep tube bias?
  128. 24V aikido build!
  129. magnavox tube radio
  130. New S5 L series kits
  131. Anyone has experience with Stranwood
  132. 6n6p amp
  133. DC Darling Amp Buzzing on both channels.
  134. 6SL7 EL34 300B amp
  135. I just installed Yeos (DIY Paradise) DC Blocker
  136. Measuring Cathode Current
  137. Need the Ogirin Circuit of Bruce Berman
  138. Input Choke Too Small
  139. Poodle gives clues to capacitor construction
  140. Would a line stage/preamp be beneficial? NEWBIE question
  141. 6p45c
  142. fanon pa amp schematic
  143. line stage confusion
  144. Hammond Transformer Secondary Connections
  145. Klimo Merlin LS Tube Power Supply
  146. OPT Design Assistante (EL84)
  147. Hum - can't find an answer by searching the forum
  148. Please critique my plans for a WE91 clone.
  149. Emission Labs 300B Mesh plate
  150. DRD Power Supply
  151. Octal Champ works - pls check design
  152. telefunken EL 34 audio tube
  153. Bias instability in Heathkit W-5M amp
  154. EL-34 instability in EICO HF-35 amp
  155. Russian paper in oil caps - any good?
  156. Matching Impedances
  157. Open-Source Audio Input Switch
  158. Phono pre amp RF problem
  159. Best CHEAP + best BEST current production EL34?
  160. New toy
  161. EL84 SEP schematic. Some questions.
  162. Referencing DC heaters to cathode
  163. Need advice on Val Audio amp with EL-34 Tubes
  164. Please help a newbie with PSU current requirement for Aikido linestage
  165. Loudspeaker noise from 300B
  166. Schematic for GU-50, EL34, 6J32P ???
  167. alternative for heater / B+ references
  168. need a little help from some tube Gurus!!!
  169. EF86 + SPICE = no noise contribution?
  170. 6n1 tube = 6n1p
  171. One channel softer than the other, humming and buzzing
  172. Parallel Output Transformers
  173. Distortion from heater sag?
  174. Testing 5842 / 417a
  175. RH ECL86 Amp: Dave?
  176. High gain pentodes
  177. Tube Matching and Push-Pull
  178. What constitutes a leaky Coupling capacitor?
  179. Question on Input Connections
  180. s5electronics tube amp kit damping factor
  181. 6L6s and cabinet selections HELP!!!!
  182. source of nickel + silicon steel laminations
  183. Explanation for this problem?
  184. turn off thump
  185. Pop from amp when turning off
  186. Big Paper in Oil Caps
  187. Valve noobie asks for help / advice
  188. Polypropylene vs electrolytic in Power supply
  189. 6S4P vs 5842
  190. Calibrating Your Hickok Tube Tester
  191. Which 2A3 ?
  192. New design: 12V push-pull tube amplifier
  193. hybrid power supply: diode bridge into diode tube
  194. heater reference to B+ and buzzing trafo
  195. Hum cancelling scheme?
  196. Run a transformer backwards?
  197. FIVRE RRCF info needed
  198. Siemens Valvo ED-8000
  199. 6J5 and 6F6 SE - enough gain for guitar?
  200. My last Zamir Aleph
  201. Questions about first tube PSU!
  202. Looking for site
  203. Heater voltage mismatch
  204. Contacting Pete Millet for 813 PSU?
  205. Suggestions for first tube project?
  206. Just Saying Howdy
  207. Wiring a tube rectifier PSU
  208. Looking for a small yet powerful pentode / dual triode?
  209. Earth Bus Wire - Where can I get it?
  210. Tube Amp Startup
  211. 45 amplifier
  212. Noob saying Hi...
  213. Maida regulator
  214. Sensitivity limiter in Bogen MX60a
  215. Just finished first amp
  216. 6080 / 6AS7G power amplifier
  217. Schematics
  218. General questions before finishing up ST-35 clone
  219. Will a 12AX7 sub. for 12DW7/7247?
  220. Deutsche Wurlitzer Lyric Jukebox?
  221. Made in China buyer beware...
  222. Variac to power-up Beveridge OTLs?
  223. Any ideas on how old this is?
  224. Philips Tube radio
  225. Improve Avel toroid in OTL amp
  226. tube pre amp mods in queensland, australia
  227. 6SL7GT pre-amp
  228. Aikido circuit question
  229. question
  230. Edcor OPT's w/ SimpleSE
  231. Please check this PSU
  232. met. MKP in oil capacitors for PSU?
  233. EH EL34's at +600V?
  234. The Infamous Kay 703C! - Help finding an output transformer?
  235. MOT's as output transformers?
  236. Grain oriented silicon steel core data needed
  237. Gibson reverb driver transformer
  238. PSUD II help
  239. Edcor In SE Guitar Amp
  240. Tube curves
  241. S-5 electronics amp kits
  242. up-to-date El Cheapo schematic
  243. unknown output trannie
  244. Help needed with KT88 Amp design
  245. Bogen MX60a
  246. AIKIDO - Low-volage with buffer version
  247. 6N6P cascode calculation
  248. 866a Min operating voltages
  249. new 6V6 amp
  250. Tube-based CCS- 0.2uF cap OK?

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