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  1. Interstage Transformer for Experimentation : Hammond 560L
  2. A question regarding Valve fillaments..
  3. Rectified heater voltage problems?
  4. Better than using a resistor as I/O converter
  5. Most responsive tweaker SE9 or 102B
  6. Measurements of tube amps
  7. Nelson Pass-D1-DAC-Output-Stage with tubes ?
  8. High Freq. AC Power for Filaments of 300B SE Power Amp?
  9. Harman Kardon Citation II : love/hate relationships
  10. Happy New Year !
  11. 6c45pi : sonic utopia or sonic hell?
  12. turning a SE 6v6 to a 6bq5 amp
  13. ASL Wave 20
  14. EL32 tube
  15. 50'S GRETSCH tube amp scematics?
  16. "Balanced power"
  17. SE amps opinions for my second amp build needed?
  18. transformer hum
  19. My EAR834 dropped dead! Help!
  20. schmatic for the audio section of A Fisher K-14 chassis
  21. Help me choose a Tube Amp. Project
  22. KT88SE with ECC82
  23. Oscillating Mullard5-20
  24. Distortion in 807 amplifier - please advise
  25. Unity Gain Tube Buffer
  26. Looking for a tweeter amp
  27. Quicksilver?
  28. beginner amp choice question
  29. AC coupling
  30. designing SS power supply
  31. Fender Guitar Amp modifications
  32. Resistors in power supply
  33. Triodes with an extra grid
  34. ECC81 or 83 or 85 or 88 ???
  35. Fisher FM50-B Schematic Needed
  36. Audio Research Database
  37. MJ-Magazine
  38. so i get common tubes free... now i just need a project
  39. current source...
  40. Help with integrated DPP amplifier.
  41. WE old tube question
  42. Looking for a 6550 recommendation...
  43. Counterpoint Manual
  44. Cathode bipass capacitor and transformer impedience
  45. Finally got a tube amp circuit to work!!! (mild debug help needed)
  46. inrush current
  47. Sylvania Chrome top 6SN7 tube
  48. High gain Tube amp problems
  49. 12 volt tube preamp help
  50. Pearl Audio Archives status
  51. Your opinion on 813?
  52. Hi; i am new to tubes
  53. cheapest output transformer for a SE EL84 guitar
  54. Filiment transformer question
  55. Electrolytic Capacitor Insulation
  56. Rca 808
  57. Push pull class A bias question
  58. Twists per inch on filament wiring?
  59. Lynn Olson's web site: AWOL?
  60. Affordable "starter" SE amp
  61. SRPP is....?
  62. guitar amp input jack help
  63. interstage coupling
  64. Where are the 833 amps?
  65. E283cc
  66. OTL design recommendation? (6C33C maybe?)
  67. 6AU4GTA as High voltage rectifier
  68. Question
  69. where can I buy fully assembled tube amplifiers here in the U.S
  70. cryod 6922s
  71. Speaker Impedance
  72. Parallel, single-ended Pentode. How?
  73. Electro Harmonix KT90?
  74. I have 1 pair of 1J6GT
  75. Mullard 5-20 again
  76. B+ power supply
  77. datasheet request
  78. Good tubes for Luxman pre-amp
  79. What is PTT216?
  80. E810F filter buffert in dac Q
  81. ECL82/6BM8 as rectifier?
  82. Mesa Boogie Mark IV
  83. Replacement for 5R4
  84. Replacement capacitors?
  85. 6AS7 Svetlana schematics?
  86. 10/10y/801
  87. Double checking my PSU and filter question.
  88. 12B4A tube amplifier with output transformers
  89. Learned a lesson today
  90. What is a Hickok 533 worth?
  91. Kailin El34
  92. Substitute for 5842/417A
  93. Air travel with DIY tube gear.
  94. 6C45 211 Amp
  95. Lowering gain in 12AX7 SRPP preamp
  96. tube amp/speaker match
  97. bifilar output trans in single ended amp
  98. Just to introduce myself
  99. i finished my first amp
  100. Citation II output transformers
  101. type 27 pre
  102. 6072 replacement, pls help
  103. Zen SE84cs transfomer upgrade? Plitron Toroidal?
  104. Has anyone on this forum heard a gainclone?
  105. EL 34 parallel push pull (quad)
  106. K&K Audio Balanced Linestage
  107. Room resonances
  108. EL-84 Integrated amp Project
  109. more newbie questions
  110. copland CVA 306
  111. Mullard 5-20 schematics
  112. Tube crossover for sub?
  113. Simple tube EQ?
  114. Just a few questions
  115. Tube Preamp for Apox Volume Control
  116. Hammond M3 Tube Amp Project
  117. Ultra linear g2-anode suppress
  118. Vacuum State Electronics FVP5A
  119. Mercury model 2000 tube tester
  120. Schematic of ID of this 6V6/6U8 stereo amp
  121. Operating points for #37 triode
  122. simple line buffer
  123. preamplifier with output transformers
  124. Preamp for guitar - low distortion
  125. F.S:unused tube measurer
  126. Nina Mu Stage Preamp - Circuit and Details
  127. Why are 6V6G(T)'s always black inside?
  128. Please clear this up 805 or pcl805
  129. What happend to svetlana tubes?
  130. penta
  131. 6V6 guitar amp...
  132. Phase splitters: Constant current sources
  133. What do you think bout that???
  134. tube amp recommendation
  135. Want a tube amp. Tell me what should get...
  136. The lego-technics transformer winding setup
  137. Toroid transformers
  138. Hempel
  139. Help on SRPP line amp!
  140. leaking magnetic flux
  141. PS evaluation
  142. Diy Phono stage
  143. Ground on OTL
  144. Transformer Steel Material
  145. mid voltage tubes?
  146. stupid first-timer
  147. az1 rectifier, chokes and caps
  148. backwards transformers
  149. Need help - trying to increase gain by paralleling triode sections
  150. Auricaps
  151. SE 6EM7 amp
  152. Simple EL84
  153. E88CC preamplifier _ I need diagram
  154. Need good 10-20watt design
  155. Does anyone here use active (digital or otherwise) XOs or EQs or...
  156. Tube mic preamp
  157. help with AudioXpress cd-rom
  158. protecting output tubes at startup
  159. 6N2, 6N6, 6N11 - Please help a beginner! (long)
  160. C core output transformer
  161. grounding
  162. Microphone Amp/Mixer
  163. Opinion solicitation / Shameless plug
  164. Sound Difference Old verses New Tubes
  165. Rewiring that EL509
  166. Russell Sadd's transformer design page.
  167. Article on Distortion
  168. wiring a 6ak5w as a triode
  169. Ankoru
  170. Basic Preamplifier (Balanced Output)
  171. DIY 5687 Preamp
  172. New tube project done in a BIG way
  173. Svetlana SV572-10 ???
  174. My boombox on.. tubes. :)
  175. From glass to mylar
  176. Suitable driver for Ultralinear?
  177. choke regulated power supply
  178. 'Battery under cathode' bias - long-term users?
  179. Will russian 6H6P tube work instead of E88CC?
  180. few Qs, pentodes, srpp, ect...
  181. Power Supply Caps
  182. 6072A Line-Amp
  183. Buying output transformers in Germany.
  184. Noob Toob Question
  185. Transformer Question
  186. High Powered 3cx300a1 Tube Amp
  187. Grounded Grid Trafo question
  188. PP 6AS7 "Maurits"
  189. Newbie, Tubeee
  190. Useful link for tube-hounds
  191. Vacuum tude diode help
  192. Long-winded capacitor question
  193. good simple SE circuit please
  194. Curcio or Triode Elec for ST-70 hot rod parts?
  195. 6021w
  196. fvp5 dc output
  197. Transfomer Too hot on my AudioNote 300B kit one
  198. Help Please 11e1 Valve
  199. Rogue 120 Mono Blocks
  200. AutotraxEDA help
  201. 845 class A2??
  202. choke and cap question
  203. 813 or 845 for a SE amplifier
  204. My first tube project
  205. I have some tubes... what can I do with them? :D
  206. Are Balance Controls Still Necessary?
  207. Info on N.E.W equipment?
  208. input stage and driver help!
  209. 6KV6A curves?
  210. low voltage tubes (space charge, etc.) for guitar amp?
  211. Dual mono amp for guitar amp
  212. Wurlitzer schematic needed for a 6420 amp
  213. Parelling Output Tubes
  214. cathode bypass in PP output stage?
  215. diy valve amp
  216. Tube amp, output capacitor and headphones impedance
  217. Tek 465 Scope
  218. Software?
  219. Has anyone tried a 37 tube as a preamp
  220. I found some old tubes. Can I use those?
  221. Whaddayathink? - tube amp kit
  222. Problems Lundahl LL1660 and 6c45 to 6c33 Triode!Need help!
  223. #27 tube for line amp?
  224. Troidal OPT winding
  225. some poor n00b who may have gotten lucky...
  226. Battery preamp, concurrent charging
  227. opt windings, need some help
  228. Dynaco A470 Output Transformers
  229. Cleaning tricks for removing rust
  230. Looking for tube design software.
  231. Super Triode Conection amps - opinions needed
  232. Hammond 300BX Power Transformer
  233. 6G4B SE Amp.
  234. Which is the best for output transformers
  235. Power supply problem
  236. resistor in PS?
  237. type 76 simple preamplifier
  238. Lectron JH50 help
  239. preamp help for newby
  240. Skip 805, what can I do with 6HS5?
  241. Tube Nicknames?
  242. Silicone High temp O-rings as tube dampers
  243. a few questions for my first time
  244. humbucking filter choke - how different?
  245. Pros and Cons of this technique?
  246. World Audio Design KLPP1
  247. effects of resistance mismatch in OT
  248. Tube regulators and noise ?
  249. First Time tube amp - need help
  250. Any Cheap Tube-amp kits out there

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