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  1. Alternative to Power Transformer
  2. Help with e180f and ixys current reg
  3. help! no power, im lost
  4. Jerrycan amp (RH34SE)
  5. 12B4 Updates
  6. Hammond L-100 conversion
  7. Anyone have the ASL model MGSI15 schematic ?
  8. Replacement for single-winding OPT?
  9. Buzz in new amp...
  10. 48V B+ linestage
  11. Line-Stage Opinion Question
  12. Audio applications of sweep tubes and ratings
  13. Differences in structure between parafeed ad gapped OPTs
  14. Take a look and let me know what you think
  15. Printed circuit board designing?
  16. SimpleSE - Switches, Wire, IEC, Jacks
  17. KT90 why this ?
  18. Break in
  19. Choke Design - Basic Questions
  20. Is this a good interstage transformer?
  21. Best tubes for bass?
  22. Tube amps & MP3's
  23. TRIO 15Hz Oscilloscope CS-1560A
  24. Newbie Needs Help Choosing A Kit
  25. I need a negative supply rail--but how?
  26. Strange Hum
  27. VR Tubes
  28. Understanding plate loads
  29. How do you know if your preamp has inverted the phase?
  30. 6P1 Equivalent
  31. EL34 and KT88??? 6550?
  32. one stage DHT amp
  33. 6V6 Output?
  34. Lineup of four: Help me choose?! OPT for SE
  35. 6DJ8 / 6922 tube?
  36. bias pilot sa 260
  37. Using vintage OPTs as PSU chokes ?
  38. crystal palace driver stage by morgan jones
  39. Why Are 12A*7 Tubes So Bad?
  40. Mikael's KT-88 question
  41. OPT for PSE 6c33c tubes
  42. 24v aikido distortion
  43. ED8000 SE or Parafeed?
  44. GZ33 Rectifier drop?
  45. counterpoint sa11
  46. High voltage problem
  47. Wire gauges
  48. Simple headphones out
  49. Mull(ard)ing over valve choice...
  50. Turning on B+ without heaters with aikido
  51. New Project - Plitron 4006
  52. Where in Brisbane can I get a transformer for my Chinese amp
  53. Etching or silkscreening chassis?
  54. can please someone explain this to me?
  55. A VCCS tube amp, how?
  56. How to add a subwoofer out?
  57. Kind of cool check it out
  58. new opt for s5 k16ls?
  59. Wanted Arkay SP6, Knight 83YX768 schematics
  60. Tube Rectifier protection
  61. Quick Q on Max G2/Screen Volts..
  62. Cathodyne follower? :)
  63. Real music power
  64. Tube info needed
  65. Petrol Head Amp
  66. Help Needed- Replacement Volume Pot For a Fisher KX100
  67. What are these caps good for?
  68. 300B Set amp some variations
  69. why p-p amp RL for class B is 1/2 the class A load?
  70. Is this circuit ok?
  71. Attenuators ------ Please Help
  72. Transformer Coupled Pentode Question
  73. no response needed 903@klipschorns
  74. KT88: EH vs. Winged C
  75. Anyone have experience with the China made tube amps
  76. Toroidal transformer potting can
  77. 300B - Push Pull or PSE to drive a commercial speaker
  78. Consonance Ella Diy hifi supply, el34, 6550 or KT88?
  79. Choke Input Filter.
  80. Preamp comparisons
  81. Amperite delay relays
  82. Help with making a tube amp?
  83. Linestage suggestion for Kuei Yang Wang's phonostage
  84. Altec Lansing 440B preamplifier
  85. Modding a Bogen CHB100...
  86. Report: One-Electron PRC as input choke
  87. Phase Splitter Name
  88. 6ck4 sweetspot
  89. Mystery Ebay amp purchase
  90. Triode versus Pentode
  91. Supply, Full wave, choke on center tap?
  92. Ping SY
  93. Interstage Transformer Loading
  94. Tube Amplifier Kit?
  95. Easy inexpensive tube buffer ideas?
  96. Running tubes at their maximum dissipation.
  97. 6BM8/ Heathkkit S.88 Has only 3 and 15 ohm O/P..?
  98. DHT drivers - shootout
  99. Dynaco MK IV
  100. KT88 , Genalex or Chinese ? Help !!!
  101. output tubes for stereo 70
  102. 6H6P for Sonic Frontiers Line 2?
  103. Too much distortion
  104. Servo assisted CF LCR-filter
  105. 6v 5AR4?
  106. 845 Grid stopper value
  107. Chokes, sizing and ringing?
  108. Long tail 6sl7 for Dynaco stereo 70?
  109. Triode Fabrication Video
  110. Funny Hi-Fi quote
  111. 300B PP ph.split
  112. extend tube sockets, or tube "plugs"?
  113. Klipsch Promedia GMX A-2.1 + Decware Taboo
  114. So any ideas for a car type amp?
  115. Cathode Biasing a 6L6 quartet power stage
  116. Calling All Mullard 5-20 Aficionados
  117. Modelling a DC filament supply in PSU Designer II
  118. 12AX7 Preamp NOOB Question
  119. Adding aux input on a tube console
  120. one safety question
  121. E1148,CV6-How do you distinguish the anode/grid caps?
  122. Strange DC choke behavior
  123. Subwoofer out question.
  124. Tube 6N3 use pre for ChipAmp
  125. Hammond 1650W
  126. separating PSU for preamp
  127. sca-35
  128. A 6.3V regulator delivering 2.8A...?
  129. 6K:8 25W SE OPT, now what tube should I use?
  130. EL84 fixed bias PP Triode
  131. Tube Amp Kit Suggestions
  132. TT21 Vs KT88
  133. One-Electron PRC chokes as PS input choke?
  134. Magnavox 135BB
  135. Is there much point in tube preamps? (This isn't a troll)
  136. How does one determine saturation point of triode or pentode
  137. Help - 807 Technical problem
  138. woooohooo!!! 3 working el84 SEs
  139. westinghouse model 80 radio - eval for parts?
  140. Bogen J130 PA schematic
  141. Better Cap = Better Sound?
  142. Pilot SA 260 bias
  143. 12AX7 gain stage output impedance
  144. Small 1W hifi amp
  145. Tube Radio - What are G & F Terminals?
  146. Has anyone seen this?
  147. how would you Parallel a 12ua7 tube
  148. Tube mod a HT rcvr?
  149. how would i series a 12au7a
  150. does some have distortion schematics for 12au7a
  151. triode strapped tetrode
  152. 6F6G UL Amplifier
  153. Build a VT100?
  154. turrets for tube PC driver board needed
  155. Mikael Abdellah's kt88, (LOADLINES)
  156. piezo amp discussion on loudspeaker forum
  157. Balanced interconnect to differential amp - how would you do it?
  158. Ebay Tube Preamp Kit
  159. Kiwame resistors
  160. Mains isolation - would this work?
  161. 6CA7 Mikael Abdellah's KT88 SE amp?
  162. Tube heaters AC or DC?
  163. Question about system design with the K-12
  164. CCS on SE 2A3 cathode
  165. Saucepan Amplifier
  166. Rectifier query
  167. Fisher 400c
  168. Hum Problem
  169. Shanghai: please recommend some audio shops
  170. Calculating max Anode Voltage
  171. One thought about improved Single Ended amplifier
  172. low distortion sweep generator - not a PC
  173. Any articles on how to bias correctly
  174. Max dissp of EH 6sn7
  175. Switched Capacitor Impedance Converter
  176. Chinese Output transformer for 300B SET
  177. Is a VTVM useful?
  178. Permanent thread name proposal
  179. Loctal Rectifiers
  180. Silk Transformers
  181. Gain Q
  182. What cable between PSU and Amp?
  183. luxman mq 36 schematics
  184. Nonstandard tubes for audio? Quadrature grid chorus effect?
  185. Parts assortments sold with organizer
  186. Re-Gapping OPT
  187. I want to begin but I don't know how!!!
  188. Ultralinear with zener on the screen
  189. ReSEPP Design: 5 Tubes 4 Natural Sound
  190. Chinese Tube Amp?
  191. Ampex 351 - Mic pre
  192. Another ground question
  193. for the life of me
  194. Front Panel Express finishes
  195. transformer spec
  196. diode bridge - 10000uF cap - diode tube - small cap - HV+
  197. passive components affected by magnetic fields?
  198. Help on Pentode Octal Phono Stage (POPS)
  199. Cascode gain. Did I do something wrong?
  200. Bad Tube in my "new" Hammond C2 Organ preamp? HELP w/ diagnosis!!
  201. Need tube data for 10Y
  202. Bending aluminum?
  203. Does anyone recognise this 12AU7?
  204. Phase splitting--how does it work?
  205. Construction technique?
  206. function generator
  207. Ceramic or Magnetic with new preamp?
  208. Melos Triode 200 fuses
  209. Fantasia Disney amp
  210. Ella amplifier problems
  211. SE design questions before I start my project
  212. Single stage preamp
  213. Help me to identify unknown tube
  214. PSU Question...Full Wave Bridge
  215. 6as7g Se
  216. Music Angel Modification
  217. 6SL7 Phono Preamp
  218. Grounded Grid Preamp
  219. Formula question
  220. 6N9S different versions
  221. Stoetkit Amps
  222. PSUD question
  223. 6922 -- curing the ultrasonic RIAA blues
  224. Need Help Setting Heater Voltage
  225. Sub-Miniature Tube Amplifier
  226. Burned out power tube
  227. www.agora.lesina.org
  228. suggestions for a rectifier
  229. scott 222 recap issues
  230. Adcom integrated/tube amp project
  231. Auricaps - 400V vs 450V (SimpleSE)
  232. ratings of output transformer???
  233. Class-g / class-h
  234. Cascading gain stages in a tube preamp
  235. OT impedances calculations: where's my mistake??
  236. phase splitting transformers
  237. 6L6 PPP UL amp
  238. g2 driven tubes
  239. Selecting an IT impedance
  240. preamp get a hum when volume is at full or 80% is thier away to stop it??
  241. What can you replace the 12AU7A with???
  242. My 12AX7 zero negative feedback preamp, with measurement
  243. improving the Transcendentsound GGP preamp
  244. Check out my new Phono stage
  245. load line UL v.s. triode
  246. Line-Stage w/ balanced output
  247. Dropped a SIF Ba
  248. RCA logos and boxes
  249. Type 24 or 24a for linestage..?
  250. Line output as line input transformer?

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