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  1. Rectifier switching / choke ringing noise
  2. Single Ended Amp Design -- Help Needed
  3. tube current
  4. Needed : ECF83, can anyone help ??
  5. Problem with a solid state CCS
  6. Looking for low-ish rp single triode
  7. Cleaning beverage out of inside tube amp
  8. Aikido problems!!!
  9. Another Power Supply Question
  10. 2a3 output transformers....
  11. yet another 6em7 amp
  12. zenith amp
  13. 6AG7 Amplifier
  14. Valve Power Supplies?
  15. tube tracer article
  16. PCB design techniques for Tube Amps
  17. Adjectives for tube sound!
  18. Question about Amperex tubes and a preamp
  19. I want to build a preamp for my dad.. thoughts?
  20. Constant Current DC Heater Supply
  21. Weekend Fun with Tubes - Guitar Preamp
  22. Which valves for MF CD-T
  23. 6C33C-EB / 6C33C-EV extended life ?
  24. Yamamoto A-08S RCA 45 tube amplifier original schematic
  25. Audiovalve RKV schematic (hybrid headphones amp)
  26. Music Angel EL34 XDSE
  27. Dynaco PAS Preamp Tone Controls
  28. build 805 or 845 se for ~$1000
  29. Built a quick 26 pre yesterday..nice so far,,
  30. An UL preamp idea.
  31. 6BX7 PSpice Model?
  32. using 24G and 3B28 in an od ball amp.......
  33. Tube Line Buffer
  34. Please help me build an amp for my father
  35. Why is my phono amp fatiguing?
  36. Heater current drawn by 8416
  37. want dead counterpoint SA100 SA-100 in good cosmetics
  38. Cathode Followers and Clipping
  39. transformer secondary connections
  40. imp amp
  41. Information 6DJ8
  42. Smoothing Cap = Noise Source?
  43. peavey ultra 60 footswitch wiring diagram
  44. 6S19P budget SE.
  45. adding reverb to a PA head
  46. My 2 new latest Dynaco ST-70's
  47. help with KT88 / mikaels SE amp
  48. twin reverb 100 watt
  49. adding LEDs to amp head
  50. What Is Line Level????
  51. chokes, caps, and long distance relationships
  52. First foray into tubes!!
  53. Simple Hi-end 845 amplifier
  54. increased choke inductance - recommended?
  55. HELP PLEASE - with preamp design
  56. Alternative to James OPTs
  57. DIY preamp tube: Audio Research Reference 3???
  58. Crowhurst's Twin Coupled Amplifier
  59. 6lw6 tv sweep tube bias?
  60. 24V aikido build!
  61. magnavox tube radio
  62. New S5 L series kits
  63. Anyone has experience with Stranwood
  64. 6n6p amp
  65. DC Darling Amp Buzzing on both channels.
  66. 6SL7 EL34 300B amp
  67. I just installed Yeos (DIY Paradise) DC Blocker
  68. Measuring Cathode Current
  69. Need the Ogirin Circuit of Bruce Berman
  70. Input Choke Too Small
  71. Poodle gives clues to capacitor construction
  72. Would a line stage/preamp be beneficial? NEWBIE question
  73. 6p45c
  74. fanon pa amp schematic
  75. line stage confusion
  76. Hammond Transformer Secondary Connections
  77. Klimo Merlin LS Tube Power Supply
  78. OPT Design Assistante (EL84)
  79. Hum - can't find an answer by searching the forum
  80. Please critique my plans for a WE91 clone.
  81. Emission Labs 300B Mesh plate
  82. DRD Power Supply
  83. Octal Champ works - pls check design
  84. telefunken EL 34 audio tube
  85. Bias instability in Heathkit W-5M amp
  86. EL-34 instability in EICO HF-35 amp
  87. Russian paper in oil caps - any good?
  88. Matching Impedances
  89. Open-Source Audio Input Switch
  90. Phono pre amp RF problem
  91. Best CHEAP + best BEST current production EL34?
  92. New toy
  93. EL84 SEP schematic. Some questions.
  94. Referencing DC heaters to cathode
  95. Need advice on Val Audio amp with EL-34 Tubes
  96. Please help a newbie with PSU current requirement for Aikido linestage
  97. Loudspeaker noise from 300B
  98. Schematic for GU-50, EL34, 6J32P ???
  99. alternative for heater / B+ references
  100. need a little help from some tube Gurus!!!
  101. EF86 + SPICE = no noise contribution?
  102. 6n1 tube = 6n1p
  103. One channel softer than the other, humming and buzzing
  104. Parallel Output Transformers
  105. Distortion from heater sag?
  106. Testing 5842 / 417a
  107. RH ECL86 Amp: Dave?
  108. High gain pentodes
  109. Tube Matching and Push-Pull
  110. What constitutes a leaky Coupling capacitor?
  111. Question on Input Connections
  112. s5electronics tube amp kit damping factor
  113. 6L6s and cabinet selections HELP!!!!
  114. source of nickel + silicon steel laminations
  115. Explanation for this problem?
  116. turn off thump
  117. Pop from amp when turning off
  118. Big Paper in Oil Caps
  119. Valve noobie asks for help / advice
  120. Polypropylene vs electrolytic in Power supply
  121. 6S4P vs 5842
  122. Calibrating Your Hickok Tube Tester
  123. Which 2A3 ?
  124. New design: 12V push-pull tube amplifier
  125. hybrid power supply: diode bridge into diode tube
  126. heater reference to B+ and buzzing trafo
  127. Hum cancelling scheme?
  128. Run a transformer backwards?
  129. FIVRE RRCF info needed
  130. Siemens Valvo ED-8000
  131. 6J5 and 6F6 SE - enough gain for guitar?
  132. My last Zamir Aleph
  133. Questions about first tube PSU!
  134. Looking for site
  135. Heater voltage mismatch
  136. Contacting Pete Millet for 813 PSU?
  137. Suggestions for first tube project?
  138. Just Saying Howdy
  139. Wiring a tube rectifier PSU
  140. Looking for a small yet powerful pentode / dual triode?
  141. Earth Bus Wire - Where can I get it?
  142. Tube Amp Startup
  143. 45 amplifier
  144. Noob saying Hi...
  145. Maida regulator
  146. Sensitivity limiter in Bogen MX60a
  147. Just finished first amp
  148. 6080 / 6AS7G power amplifier
  149. Schematics
  150. General questions before finishing up ST-35 clone
  151. Will a 12AX7 sub. for 12DW7/7247?
  152. Deutsche Wurlitzer Lyric Jukebox?
  153. Made in China buyer beware...
  154. Variac to power-up Beveridge OTLs?
  155. Any ideas on how old this is?
  156. Philips Tube radio
  157. Improve Avel toroid in OTL amp
  158. tube pre amp mods in queensland, australia
  159. 6SL7GT pre-amp
  160. Aikido circuit question
  161. question
  162. Edcor OPT's w/ SimpleSE
  163. Please check this PSU
  164. met. MKP in oil capacitors for PSU?
  165. EH EL34's at +600V?
  166. The Infamous Kay 703C! - Help finding an output transformer?
  167. MOT's as output transformers?
  168. Grain oriented silicon steel core data needed
  169. Gibson reverb driver transformer
  170. PSUD II help
  171. Edcor In SE Guitar Amp
  172. Tube curves
  173. S-5 electronics amp kits
  174. up-to-date El Cheapo schematic
  175. unknown output trannie
  176. Help needed with KT88 Amp design
  177. Bogen MX60a
  178. AIKIDO - Low-volage with buffer version
  179. 6N6P cascode calculation
  180. 866a Min operating voltages
  181. new 6V6 amp
  182. Tube-based CCS- 0.2uF cap OK?
  183. DHT filament PSU: What would you do?
  184. PSU problem
  185. 811A se amp using a solid state driver
  186. ECC83 - Long Plate vs Short Plate
  187. Tube Matching
  188. Cascoded mu-follower
  189. DIY speaker choice for SE
  190. Output transformer wanted
  191. big valve traffo for guitar amp?
  192. Tube Tester
  193. 835 amp
  194. One 300B filament supply for stereo?
  195. Aikido Built At Last!!
  196. Question about amount of feedback to apply
  197. design help needed.
  198. LED in cathode
  199. Need help for Eico 1030 regulated power supply
  200. zinc chassis
  201. Anode Cap Question
  202. what pins to use solid rectifier for 5Y3
  203. New PSU for Aikido?
  204. tube anti-vibration mounting
  205. Border Patrol PSU, can anyone help?
  206. Aikido Line Stage
  207. LED Bias Modifications
  208. danelectro vibravox
  209. Standby switch for bridge rectified power supplies.
  210. Decoupling in Phono stages.
  211. easy one valve pre help
  212. Single-ended-series amp with a "1 winding" transformer
  213. Complementary Symmetry Output
  214. Help getting these d$&* Dynascan probes apart!
  215. Aikido output cap selector switch
  216. adding an "on" lamp to amp kit
  217. Why does 6BM8 have so high max plate voltage?
  218. B+ soft start
  219. Unison research
  220. photos of my creations
  221. First Time Project - Finished! Photos Attached
  222. Design parameters for SE OPTs'
  223. want to build a pentode driven drd 2a3!
  224. Passive Magnetic Preamp!
  225. Testing an E288CC (8223)
  226. Need expert help on presence control
  227. Value of output caps for Aikido - how low is too low?
  228. Very expensive WE106A pre-amp, any member had this??
  229. B+ with or without tubes?
  230. 1st Time Project - Spot the howler
  231. Tube flashes on tester... Bad ?
  232. Amp advice needed for a poor DIY er...
  233. DCR of primaries and secondaries of Hammond Transformer
  234. 801 amp with Power Drive
  235. Where did this come from?
  236. 6N7S's PPP Class A
  237. your opinion needed.......
  238. ST-70 strangeness
  239. SS preamp w/ tube amp
  240. pri. impedance vs. sek. impedance
  241. TubeLab SimpleSe and speaker efficiency
  242. Question about speaker transformer
  243. How to read Russian Date Codes
  244. 300B Amp on ebay
  245. Would a 396A or 2C51 drive a 45?
  246. PSUD2 Q on regulator
  247. My last design
  248. OPT for 250th Se A2
  249. Silvertone 1481 power transformer?
  250. 829B, 3E29, QQV03-20 Connector

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