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  1. transformer secondary connections
  2. imp amp
  3. Information 6DJ8
  4. Smoothing Cap = Noise Source?
  5. peavey ultra 60 footswitch wiring diagram
  6. 6S19P budget SE.
  7. adding reverb to a PA head
  8. My 2 new latest Dynaco ST-70's
  9. help with KT88 / mikaels SE amp
  10. twin reverb 100 watt
  11. adding LEDs to amp head
  12. What Is Line Level????
  13. chokes, caps, and long distance relationships
  14. First foray into tubes!!
  15. Simple Hi-end 845 amplifier
  16. increased choke inductance - recommended?
  17. HELP PLEASE - with preamp design
  18. Alternative to James OPTs
  19. DIY preamp tube: Audio Research Reference 3???
  20. Crowhurst's Twin Coupled Amplifier
  21. 6lw6 tv sweep tube bias?
  22. 24V aikido build!
  23. magnavox tube radio
  24. New S5 L series kits
  25. Anyone has experience with Stranwood
  26. 6n6p amp
  27. DC Darling Amp Buzzing on both channels.
  28. 6SL7 EL34 300B amp
  29. I just installed Yeos (DIY Paradise) DC Blocker
  30. Measuring Cathode Current
  31. Need the Ogirin Circuit of Bruce Berman
  32. Input Choke Too Small
  33. Poodle gives clues to capacitor construction
  34. Would a line stage/preamp be beneficial? NEWBIE question
  35. 6p45c
  36. fanon pa amp schematic
  37. line stage confusion
  38. Hammond Transformer Secondary Connections
  39. Klimo Merlin LS Tube Power Supply
  40. OPT Design Assistante (EL84)
  41. Hum - can't find an answer by searching the forum
  42. Please critique my plans for a WE91 clone.
  43. Emission Labs 300B Mesh plate
  44. DRD Power Supply
  45. Octal Champ works - pls check design
  46. telefunken EL 34 audio tube
  47. Bias instability in Heathkit W-5M amp
  48. EL-34 instability in EICO HF-35 amp
  49. Russian paper in oil caps - any good?
  50. Matching Impedances
  51. Open-Source Audio Input Switch
  52. Phono pre amp RF problem
  53. Best CHEAP + best BEST current production EL34?
  54. New toy
  55. EL84 SEP schematic. Some questions.
  56. Referencing DC heaters to cathode
  57. Need advice on Val Audio amp with EL-34 Tubes
  58. Please help a newbie with PSU current requirement for Aikido linestage
  59. Loudspeaker noise from 300B
  60. Schematic for GU-50, EL34, 6J32P ???
  61. alternative for heater / B+ references
  62. need a little help from some tube Gurus!!!
  63. EF86 + SPICE = no noise contribution?
  64. 6n1 tube = 6n1p
  65. One channel softer than the other, humming and buzzing
  66. Parallel Output Transformers
  67. Distortion from heater sag?
  68. Testing 5842 / 417a
  69. RH ECL86 Amp: Dave?
  70. High gain pentodes
  71. Tube Matching and Push-Pull
  72. What constitutes a leaky Coupling capacitor?
  73. Question on Input Connections
  74. s5electronics tube amp kit damping factor
  75. 6L6s and cabinet selections HELP!!!!
  76. source of nickel + silicon steel laminations
  77. Explanation for this problem?
  78. turn off thump
  79. Pop from amp when turning off
  80. Big Paper in Oil Caps
  81. Valve noobie asks for help / advice
  82. Polypropylene vs electrolytic in Power supply
  83. 6S4P vs 5842
  84. Calibrating Your Hickok Tube Tester
  85. Which 2A3 ?
  86. New design: 12V push-pull tube amplifier
  87. hybrid power supply: diode bridge into diode tube
  88. heater reference to B+ and buzzing trafo
  89. Hum cancelling scheme?
  90. Run a transformer backwards?
  91. FIVRE RRCF info needed
  92. Siemens Valvo ED-8000
  93. 6J5 and 6F6 SE - enough gain for guitar?
  94. My last Zamir Aleph
  95. Questions about first tube PSU!
  96. Looking for site
  97. Heater voltage mismatch
  98. Contacting Pete Millet for 813 PSU?
  99. Suggestions for first tube project?
  100. Just Saying Howdy
  101. Wiring a tube rectifier PSU
  102. Looking for a small yet powerful pentode / dual triode?
  103. Earth Bus Wire - Where can I get it?
  104. Tube Amp Startup
  105. 45 amplifier
  106. Noob saying Hi...
  107. Maida regulator
  108. Sensitivity limiter in Bogen MX60a
  109. Just finished first amp
  110. 6080 / 6AS7G power amplifier
  111. Schematics
  112. General questions before finishing up ST-35 clone
  113. Will a 12AX7 sub. for 12DW7/7247?
  114. Deutsche Wurlitzer Lyric Jukebox?
  115. Made in China buyer beware...
  116. Variac to power-up Beveridge OTLs?
  117. Any ideas on how old this is?
  118. Philips Tube radio
  119. Improve Avel toroid in OTL amp
  120. tube pre amp mods in queensland, australia
  121. 6SL7GT pre-amp
  122. Aikido circuit question
  123. question
  124. Edcor OPT's w/ SimpleSE
  125. Please check this PSU
  126. met. MKP in oil capacitors for PSU?
  127. EH EL34's at +600V?
  128. The Infamous Kay 703C! - Help finding an output transformer?
  129. MOT's as output transformers?
  130. Grain oriented silicon steel core data needed
  131. Gibson reverb driver transformer
  132. PSUD II help
  133. Edcor In SE Guitar Amp
  134. Tube curves
  135. S-5 electronics amp kits
  136. up-to-date El Cheapo schematic
  137. unknown output trannie
  138. Help needed with KT88 Amp design
  139. Bogen MX60a
  140. AIKIDO - Low-volage with buffer version
  141. 6N6P cascode calculation
  142. 866a Min operating voltages
  143. new 6V6 amp
  144. Tube-based CCS- 0.2uF cap OK?
  145. DHT filament PSU: What would you do?
  146. PSU problem
  147. 811A se amp using a solid state driver
  148. ECC83 - Long Plate vs Short Plate
  149. Tube Matching
  150. Cascoded mu-follower
  151. DIY speaker choice for SE
  152. Output transformer wanted
  153. big valve traffo for guitar amp?
  154. Tube Tester
  155. 835 amp
  156. One 300B filament supply for stereo?
  157. Aikido Built At Last!!
  158. Question about amount of feedback to apply
  159. design help needed.
  160. LED in cathode
  161. Need help for Eico 1030 regulated power supply
  162. zinc chassis
  163. Anode Cap Question
  164. what pins to use solid rectifier for 5Y3
  165. New PSU for Aikido?
  166. tube anti-vibration mounting
  167. Border Patrol PSU, can anyone help?
  168. Aikido Line Stage
  169. LED Bias Modifications
  170. danelectro vibravox
  171. Standby switch for bridge rectified power supplies.
  172. Decoupling in Phono stages.
  173. easy one valve pre help
  174. Single-ended-series amp with a "1 winding" transformer
  175. Complementary Symmetry Output
  176. Help getting these d$&* Dynascan probes apart!
  177. Aikido output cap selector switch
  178. adding an "on" lamp to amp kit
  179. Why does 6BM8 have so high max plate voltage?
  180. B+ soft start
  181. Unison research
  182. photos of my creations
  183. First Time Project - Finished! Photos Attached
  184. Design parameters for SE OPTs'
  185. want to build a pentode driven drd 2a3!
  186. Passive Magnetic Preamp!
  187. Testing an E288CC (8223)
  188. Need expert help on presence control
  189. Value of output caps for Aikido - how low is too low?
  190. Very expensive WE106A pre-amp, any member had this??
  191. B+ with or without tubes?
  192. 1st Time Project - Spot the howler
  193. Tube flashes on tester... Bad ?
  194. Amp advice needed for a poor DIY er...
  195. DCR of primaries and secondaries of Hammond Transformer
  196. 801 amp with Power Drive
  197. Where did this come from?
  198. 6N7S's PPP Class A
  199. your opinion needed.......
  200. ST-70 strangeness
  201. SS preamp w/ tube amp
  202. pri. impedance vs. sek. impedance
  203. TubeLab SimpleSe and speaker efficiency
  204. Question about speaker transformer
  205. How to read Russian Date Codes
  206. 300B Amp on ebay
  207. Would a 396A or 2C51 drive a 45?
  208. PSUD2 Q on regulator
  209. My last design
  210. Silvertone 1481 power transformer?
  211. OPT for 250th Se A2
  212. 829B, 3E29, QQV03-20 Connector
  213. Measuring from UK schematic but on US mains
  214. strange tube
  215. cathode resistor ?? in p-p fixed bias
  216. Need Help please . Headphones into line up of tube amp .
  217. 5Z4 inrush current too high
  218. Reducing gain on Audible Illusions M3A
  219. Decoding output transformers: strange SE's
  220. cheap and usable for 1K p-p iron?
  221. Help! Phono stage LF instability
  222. Help! Mesa Stiletto is motorboating and then fuse blows
  223. Faulty tube?
  224. Philbrick opamp bases
  225. Hammond Driver transformers
  226. 6n7/2a3
  227. Flea power for cheap OPT's?
  228. 1st Project - Half time report
  229. Claus Byrith 4-30 Questions
  230. quicksilver 8417 biasing
  231. 6sl7
  232. Trying to identify/find documentation on a 50EH5 amp
  233. Basic tests and measurements for OPTs
  234. 6SN7GT SRSE Linestage
  235. Dynaco Mark III
  236. Push Pull 300B preliminary
  237. triode thermodynamic model
  238. My first post!
  239. A Neophyte's 12B4 Build Thread
  240. Webster Hammond Model "G" amplifier
  241. Matching tubes- WE 396a/RFT EL34
  242. What is the most powerful AF tube amp ever built?
  243. SOHA Amp & PSU Layout, need feedback
  244. smoke came from transformer
  245. Startup Cost?
  246. Old or new output transformer?
  247. speaker magnet proximity Question
  248. Russian L3-3 tube tester
  249. I made a web page on building triode models /w CurveCaptor
  250. Boosted Triode mode?

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