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  1. Tube Line Buffer
  2. Please help me build an amp for my father
  3. Why is my phono amp fatiguing?
  4. Heater current drawn by 8416
  5. want dead counterpoint SA100 SA-100 in good cosmetics
  6. Cathode Followers and Clipping
  7. transformer secondary connections
  8. imp amp
  9. Information 6DJ8
  10. Smoothing Cap = Noise Source?
  11. peavey ultra 60 footswitch wiring diagram
  12. 6S19P budget SE.
  13. adding reverb to a PA head
  14. My 2 new latest Dynaco ST-70's
  15. help with KT88 / mikaels SE amp
  16. twin reverb 100 watt
  17. adding LEDs to amp head
  18. What Is Line Level????
  19. chokes, caps, and long distance relationships
  20. First foray into tubes!!
  21. Simple Hi-end 845 amplifier
  22. increased choke inductance - recommended?
  23. HELP PLEASE - with preamp design
  24. Alternative to James OPTs
  25. DIY preamp tube: Audio Research Reference 3???
  26. Crowhurst's Twin Coupled Amplifier
  27. 6lw6 tv sweep tube bias?
  28. 24V aikido build!
  29. magnavox tube radio
  30. New S5 L series kits
  31. Anyone has experience with Stranwood
  32. 6n6p amp
  33. DC Darling Amp Buzzing on both channels.
  34. 6SL7 EL34 300B amp
  35. I just installed Yeos (DIY Paradise) DC Blocker
  36. Measuring Cathode Current
  37. Need the Ogirin Circuit of Bruce Berman
  38. Input Choke Too Small
  39. Poodle gives clues to capacitor construction
  40. Would a line stage/preamp be beneficial? NEWBIE question
  41. 6p45c
  42. fanon pa amp schematic
  43. line stage confusion
  44. Hammond Transformer Secondary Connections
  45. Klimo Merlin LS Tube Power Supply
  46. OPT Design Assistante (EL84)
  47. Hum - can't find an answer by searching the forum
  48. Please critique my plans for a WE91 clone.
  49. Emission Labs 300B Mesh plate
  50. DRD Power Supply
  51. Octal Champ works - pls check design
  52. telefunken EL 34 audio tube
  53. Bias instability in Heathkit W-5M amp
  54. EL-34 instability in EICO HF-35 amp
  55. Russian paper in oil caps - any good?
  56. Matching Impedances
  57. Open-Source Audio Input Switch
  58. Phono pre amp RF problem
  59. Best CHEAP + best BEST current production EL34?
  60. New toy
  61. EL84 SEP schematic. Some questions.
  62. Referencing DC heaters to cathode
  63. Need advice on Val Audio amp with EL-34 Tubes
  64. Please help a newbie with PSU current requirement for Aikido linestage
  65. Loudspeaker noise from 300B
  66. Schematic for GU-50, EL34, 6J32P ???
  67. alternative for heater / B+ references
  68. need a little help from some tube Gurus!!!
  69. EF86 + SPICE = no noise contribution?
  70. 6n1 tube = 6n1p
  71. One channel softer than the other, humming and buzzing
  72. Parallel Output Transformers
  73. Distortion from heater sag?
  74. Testing 5842 / 417a
  75. RH ECL86 Amp: Dave?
  76. High gain pentodes
  77. Tube Matching and Push-Pull
  78. What constitutes a leaky Coupling capacitor?
  79. Question on Input Connections
  80. s5electronics tube amp kit damping factor
  81. 6L6s and cabinet selections HELP!!!!
  82. source of nickel + silicon steel laminations
  83. Explanation for this problem?
  84. turn off thump
  85. Pop from amp when turning off
  86. Big Paper in Oil Caps
  87. Valve noobie asks for help / advice
  88. Polypropylene vs electrolytic in Power supply
  89. 6S4P vs 5842
  90. Calibrating Your Hickok Tube Tester
  91. Which 2A3 ?
  92. New design: 12V push-pull tube amplifier
  93. hybrid power supply: diode bridge into diode tube
  94. heater reference to B+ and buzzing trafo
  95. Hum cancelling scheme?
  96. Run a transformer backwards?
  97. FIVRE RRCF info needed
  98. Siemens Valvo ED-8000
  99. 6J5 and 6F6 SE - enough gain for guitar?
  100. My last Zamir Aleph
  101. Questions about first tube PSU!
  102. Looking for site
  103. Heater voltage mismatch
  104. Contacting Pete Millet for 813 PSU?
  105. Suggestions for first tube project?
  106. Just Saying Howdy
  107. Wiring a tube rectifier PSU
  108. Looking for a small yet powerful pentode / dual triode?
  109. Earth Bus Wire - Where can I get it?
  110. Tube Amp Startup
  111. 45 amplifier
  112. Noob saying Hi...
  113. Maida regulator
  114. Sensitivity limiter in Bogen MX60a
  115. Just finished first amp
  116. 6080 / 6AS7G power amplifier
  117. Schematics
  118. General questions before finishing up ST-35 clone
  119. Will a 12AX7 sub. for 12DW7/7247?
  120. Deutsche Wurlitzer Lyric Jukebox?
  121. Made in China buyer beware...
  122. Variac to power-up Beveridge OTLs?
  123. Any ideas on how old this is?
  124. Philips Tube radio
  125. Improve Avel toroid in OTL amp
  126. tube pre amp mods in queensland, australia
  127. 6SL7GT pre-amp
  128. Aikido circuit question
  129. question
  130. Edcor OPT's w/ SimpleSE
  131. Please check this PSU
  132. met. MKP in oil capacitors for PSU?
  133. EH EL34's at +600V?
  134. The Infamous Kay 703C! - Help finding an output transformer?
  135. MOT's as output transformers?
  136. Grain oriented silicon steel core data needed
  137. Gibson reverb driver transformer
  138. PSUD II help
  139. Edcor In SE Guitar Amp
  140. Tube curves
  141. S-5 electronics amp kits
  142. up-to-date El Cheapo schematic
  143. unknown output trannie
  144. Help needed with KT88 Amp design
  145. Bogen MX60a
  146. AIKIDO - Low-volage with buffer version
  147. 6N6P cascode calculation
  148. 866a Min operating voltages
  149. new 6V6 amp
  150. Tube-based CCS- 0.2uF cap OK?
  151. DHT filament PSU: What would you do?
  152. PSU problem
  153. 811A se amp using a solid state driver
  154. ECC83 - Long Plate vs Short Plate
  155. Tube Matching
  156. Cascoded mu-follower
  157. DIY speaker choice for SE
  158. Output transformer wanted
  159. big valve traffo for guitar amp?
  160. Tube Tester
  161. 835 amp
  162. One 300B filament supply for stereo?
  163. Aikido Built At Last!!
  164. Question about amount of feedback to apply
  165. design help needed.
  166. LED in cathode
  167. Need help for Eico 1030 regulated power supply
  168. zinc chassis
  169. Anode Cap Question
  170. what pins to use solid rectifier for 5Y3
  171. New PSU for Aikido?
  172. tube anti-vibration mounting
  173. Border Patrol PSU, can anyone help?
  174. Aikido Line Stage
  175. LED Bias Modifications
  176. danelectro vibravox
  177. Standby switch for bridge rectified power supplies.
  178. Decoupling in Phono stages.
  179. easy one valve pre help
  180. Single-ended-series amp with a "1 winding" transformer
  181. Complementary Symmetry Output
  182. Help getting these d$&* Dynascan probes apart!
  183. Aikido output cap selector switch
  184. adding an "on" lamp to amp kit
  185. Why does 6BM8 have so high max plate voltage?
  186. B+ soft start
  187. Unison research
  188. photos of my creations
  189. First Time Project - Finished! Photos Attached
  190. Design parameters for SE OPTs'
  191. want to build a pentode driven drd 2a3!
  192. Passive Magnetic Preamp!
  193. Testing an E288CC (8223)
  194. Need expert help on presence control
  195. Value of output caps for Aikido - how low is too low?
  196. Very expensive WE106A pre-amp, any member had this??
  197. B+ with or without tubes?
  198. 1st Time Project - Spot the howler
  199. Tube flashes on tester... Bad ?
  200. Amp advice needed for a poor DIY er...
  201. DCR of primaries and secondaries of Hammond Transformer
  202. 801 amp with Power Drive
  203. Where did this come from?
  204. 6N7S's PPP Class A
  205. your opinion needed.......
  206. ST-70 strangeness
  207. SS preamp w/ tube amp
  208. pri. impedance vs. sek. impedance
  209. TubeLab SimpleSe and speaker efficiency
  210. Question about speaker transformer
  211. How to read Russian Date Codes
  212. 300B Amp on ebay
  213. Would a 396A or 2C51 drive a 45?
  214. PSUD2 Q on regulator
  215. My last design
  216. Silvertone 1481 power transformer?
  217. OPT for 250th Se A2
  218. 829B, 3E29, QQV03-20 Connector
  219. Measuring from UK schematic but on US mains
  220. strange tube
  221. cathode resistor ?? in p-p fixed bias
  222. Need Help please . Headphones into line up of tube amp .
  223. 5Z4 inrush current too high
  224. Reducing gain on Audible Illusions M3A
  225. Decoding output transformers: strange SE's
  226. cheap and usable for 1K p-p iron?
  227. Help! Phono stage LF instability
  228. Help! Mesa Stiletto is motorboating and then fuse blows
  229. Faulty tube?
  230. Philbrick opamp bases
  231. Hammond Driver transformers
  232. 6n7/2a3
  233. Flea power for cheap OPT's?
  234. 1st Project - Half time report
  235. Claus Byrith 4-30 Questions
  236. quicksilver 8417 biasing
  237. 6sl7
  238. Trying to identify/find documentation on a 50EH5 amp
  239. Basic tests and measurements for OPTs
  240. 6SN7GT SRSE Linestage
  241. Dynaco Mark III
  242. Push Pull 300B preliminary
  243. triode thermodynamic model
  244. My first post!
  245. A Neophyte's 12B4 Build Thread
  246. Webster Hammond Model "G" amplifier
  247. Matching tubes- WE 396a/RFT EL34
  248. What is the most powerful AF tube amp ever built?
  249. SOHA Amp & PSU Layout, need feedback
  250. smoke came from transformer

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