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  1. good replacement for ECC82
  2. Velleman K4040
  3. $5 SE amp... but is it fried?!
  4. Build with 300B or something else???
  5. Another question
  6. Anybody know these two tubes? DET-9 & Ba
  7. Decent Valve Amp Kit?
  8. distorted hum
  9. Which KT88??
  10. Not connecting grids/anode can hurt tube?
  11. Question for SE Transformer Gurus
  12. Decoupling Paper In Oil capacitor question for KT88 design.
  13. Isabelle Phono Stage
  14. input/driver tube
  15. Best Sounding 6550
  16. toroidal trannies alignment
  17. OTL OCL or Non
  18. How can I use UTC A22 at OPT in pre-amp?
  19. SE Output Transformers
  20. Sq-5
  21. Specs And Curves
  22. Golden Dragon Tube
  23. 2A3 Output Transformer
  24. Powre Transformer for 2A3
  25. Newbie - Is this a good amp?
  26. Reference for DIY AudioCraft in Hong Kong
  27. tubes avalibility
  28. OTL Output Cap Question
  29. Newbie question : Plate CCS
  30. Black Art Single Ended Output Transformers
  31. quick transformer question
  32. CCS for p-p cathode bias ?
  33. Tube output stage for DAC
  34. Reinhöfer Transformers (Germany).
  35. power transformer help !!!
  36. UXCV11 Triode Tube
  37. HVHP shuntreg PCB's available?
  38. Harmon Kardon Ballad Stereo Amplifier
  39. 811A tube internal resistance ?
  40. 8417
  41. Running tubes at lower voltages
  42. EL34-PP building questions
  43. tube 8416 good for audio ???
  44. tube substitution and amp modification guidelines
  45. Real russian tubes anyone??
  46. I'm starting 300B amp
  47. Anyone tried this at home?
  48. push pull bias servo
  49. Sylvania JAN 6L6WGB max plate V?
  50. Repairing valve bases
  51. E55L in triode as driver!
  52. SE Class A with 845or 211. Need a good circuit
  53. st-70 questions... tips?
  54. Biasing a Class A amp information
  55. Holy Grail of Valve Amps
  56. Diff amp driver -> SE output
  57. hipass/lowpass filters
  58. Beginners question(help!)
  59. Capacitor Question /question on cap
  60. Report on 6922 testing
  61. 6ha5
  62. Western electric VT1 tubes
  63. Edge connectors - which to use?
  64. pc mount el34 socket
  65. use MKP capacitor instead of electrolytc for AC filter
  66. 12B4A Linestage
  67. Regulated Heater Supply
  68. Schottky bridge rectifier
  69. 6r-a8???
  70. Plitron Specialist transformer with Unity Coupling
  71. Getting started with tube preamps
  72. Pre-(Line-)Amp with RE074
  73. Interstage Transformer for Experimentation : Hammond 560L
  74. A question regarding Valve fillaments..
  75. Rectified heater voltage problems?
  76. Better than using a resistor as I/O converter
  77. Most responsive tweaker SE9 or 102B
  78. Measurements of tube amps
  79. Nelson Pass-D1-DAC-Output-Stage with tubes ?
  80. High Freq. AC Power for Filaments of 300B SE Power Amp?
  81. Harman Kardon Citation II : love/hate relationships
  82. Happy New Year !
  83. 6c45pi : sonic utopia or sonic hell?
  84. turning a SE 6v6 to a 6bq5 amp
  85. ASL Wave 20
  86. EL32 tube
  87. 50'S GRETSCH tube amp scematics?
  88. "Balanced power"
  89. SE amps opinions for my second amp build needed?
  90. transformer hum
  91. My EAR834 dropped dead! Help!
  92. schmatic for the audio section of A Fisher K-14 chassis
  93. Help me choose a Tube Amp. Project
  94. KT88SE with ECC82
  95. Oscillating Mullard5-20
  96. Distortion in 807 amplifier - please advise
  97. Unity Gain Tube Buffer
  98. Looking for a tweeter amp
  99. Quicksilver?
  100. beginner amp choice question
  101. AC coupling
  102. designing SS power supply
  103. Fender Guitar Amp modifications
  104. Resistors in power supply
  105. Triodes with an extra grid
  106. ECC81 or 83 or 85 or 88 ???
  107. Fisher FM50-B Schematic Needed
  108. Audio Research Database
  109. MJ-Magazine
  110. so i get common tubes free... now i just need a project
  111. current source...
  112. Help with integrated DPP amplifier.
  113. WE old tube question
  114. Looking for a 6550 recommendation...
  115. Counterpoint Manual
  116. Cathode bipass capacitor and transformer impedience
  117. Finally got a tube amp circuit to work!!! (mild debug help needed)
  118. inrush current
  119. Sylvania Chrome top 6SN7 tube
  120. High gain Tube amp problems
  121. 12 volt tube preamp help
  122. Pearl Audio Archives status
  123. Your opinion on 813?
  124. Hi; i am new to tubes
  125. cheapest output transformer for a SE EL84 guitar
  126. Filiment transformer question
  127. Electrolytic Capacitor Insulation
  128. Rca 808
  129. Push pull class A bias question
  130. Twists per inch on filament wiring?
  131. Lynn Olson's web site: AWOL?
  132. Affordable "starter" SE amp
  133. SRPP is....?
  134. guitar amp input jack help
  135. interstage coupling
  136. Where are the 833 amps?
  137. E283cc
  138. OTL design recommendation? (6C33C maybe?)
  139. 6AU4GTA as High voltage rectifier
  140. Question
  141. where can I buy fully assembled tube amplifiers here in the U.S
  142. cryod 6922s
  143. Speaker Impedance
  144. Parallel, single-ended Pentode. How?
  145. Electro Harmonix KT90?
  146. I have 1 pair of 1J6GT
  147. Mullard 5-20 again
  148. B+ power supply
  149. datasheet request
  150. Good tubes for Luxman pre-amp
  151. What is PTT216?
  152. E810F filter buffert in dac Q
  153. ECL82/6BM8 as rectifier?
  154. Mesa Boogie Mark IV
  155. Replacement for 5R4
  156. Replacement capacitors?
  157. 6AS7 Svetlana schematics?
  158. 10/10y/801
  159. Double checking my PSU and filter question.
  160. 12B4A tube amplifier with output transformers
  161. Learned a lesson today
  162. What is a Hickok 533 worth?
  163. Kailin El34
  164. Substitute for 5842/417A
  165. Air travel with DIY tube gear.
  166. 6C45 211 Amp
  167. Lowering gain in 12AX7 SRPP preamp
  168. tube amp/speaker match
  169. bifilar output trans in single ended amp
  170. Just to introduce myself
  171. i finished my first amp
  172. Citation II output transformers
  173. type 27 pre
  174. 6072 replacement, pls help
  175. Zen SE84cs transfomer upgrade? Plitron Toroidal?
  176. Has anyone on this forum heard a gainclone?
  177. EL 34 parallel push pull (quad)
  178. K&K Audio Balanced Linestage
  179. Room resonances
  180. EL-84 Integrated amp Project
  181. more newbie questions
  182. copland CVA 306
  183. Mullard 5-20 schematics
  184. Tube crossover for sub?
  185. Simple tube EQ?
  186. Just a few questions
  187. Tube Preamp for Apox Volume Control
  188. Hammond M3 Tube Amp Project
  189. Ultra linear g2-anode suppress
  190. Vacuum State Electronics FVP5A
  191. Mercury model 2000 tube tester
  192. Schematic of ID of this 6V6/6U8 stereo amp
  193. Operating points for #37 triode
  194. simple line buffer
  195. preamplifier with output transformers
  196. Preamp for guitar - low distortion
  197. F.S:unused tube measurer
  198. Nina Mu Stage Preamp - Circuit and Details
  199. Why are 6V6G(T)'s always black inside?
  200. Please clear this up 805 or pcl805
  201. What happend to svetlana tubes?
  202. penta
  203. 6V6 guitar amp...
  204. Phase splitters: Constant current sources
  205. What do you think bout that???
  206. tube amp recommendation
  207. Want a tube amp. Tell me what should get...
  208. The lego-technics transformer winding setup
  209. Toroid transformers
  210. Hempel
  211. Help on SRPP line amp!
  212. leaking magnetic flux
  213. PS evaluation
  214. Diy Phono stage
  215. Ground on OTL
  216. Transformer Steel Material
  217. mid voltage tubes?
  218. stupid first-timer
  219. az1 rectifier, chokes and caps
  220. backwards transformers
  221. Need help - trying to increase gain by paralleling triode sections
  222. Auricaps
  223. SE 6EM7 amp
  224. Simple EL84
  225. E88CC preamplifier _ I need diagram
  226. Need good 10-20watt design
  227. Does anyone here use active (digital or otherwise) XOs or EQs or...
  228. Tube mic preamp
  229. help with AudioXpress cd-rom
  230. protecting output tubes at startup
  231. 6N2, 6N6, 6N11 - Please help a beginner! (long)
  232. C core output transformer
  233. grounding
  234. Microphone Amp/Mixer
  235. Opinion solicitation / Shameless plug
  236. Sound Difference Old verses New Tubes
  237. Rewiring that EL509
  238. Russell Sadd's transformer design page.
  239. Article on Distortion
  240. wiring a 6ak5w as a triode
  241. Ankoru
  242. Basic Preamplifier (Balanced Output)
  243. DIY 5687 Preamp
  244. New tube project done in a BIG way
  245. Svetlana SV572-10 ???
  246. My boombox on.. tubes. :)
  247. From glass to mylar
  248. Suitable driver for Ultralinear?
  249. choke regulated power supply
  250. 'Battery under cathode' bias - long-term users?

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