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  1. 6BG6 = 6L6GC with top cap - cheap!
  2. Maida Regulators Redux
  3. ground of DC bias supply
  4. does anyone the website for yaqin/mr. liung/music angel amps?
  5. plate load ccs ala gary p question
  6. Books for newbe
  7. 6AS7 OTL
  8. n00b phono preamp troubleshooting..
  9. TubelabSE - Anyone built?
  10. any example of SE designs using GM70?
  11. Shunt regulator question
  12. Any RH807 builders?
  13. Replacing multi-section caps with multiple caps?
  14. Recycle an Eico HFT-90 for a preamp
  15. EL84 PP output transformer for 6L6 PP class A
  16. Jensen PIO capacitor burn in
  17. toroid psu, weird results...
  18. Squeaky Noise in ARC Dual 75
  19. EL84 mod questions
  20. Measuring DC at preamp output
  21. Is Northern Electric the NEW W.E.?
  22. Burnt Woodside STA35 valve amp... Help!
  23. My tube preamplifier project
  24. Ponderings on hybrid 300B
  25. Maida Regulator Parts
  26. anyone familiar with the 211/vt4c circuit from Fi Primer?
  27. Calculating operating points of two DC stages
  28. Advice for retubing VTL Ichiban`s
  29. Need help
  30. Art Audio Kit on Common Ground Magazine
  31. Advice for retubing VTL Ichiban`s
  32. fisher 800c intermitant hum
  33. calling Yves....
  34. X10 Pre
  35. NEW KT66 - 6AU6 single ended
  36. mechanical hum
  37. Big valve preamp
  38. Question about biasing heater above cathode in a direct coupled circuit.
  39. center tapped choke inverter
  40. Guitar tube pre DIY suggestions..?
  41. Which One Of These Tube Amps Should I Buy?
  42. Tube Info
  43. Circuit/Equipment Designer
  44. help needed with noise in phono preamp
  45. Pentode driver and IT?
  46. Plate Caps for 832A
  47. 300b advice
  48. Designs on your noob, err, tube
  49. 7788 Triode Curves
  50. EL81/6CJ6 operating point
  51. Separate cathode resistors in push pull output
  52. C3m linestage
  53. Anyone know this 13E1 design...
  54. LTP w/ positive only supply
  55. 6V6 line preamp
  56. The 6P43P russian tube is a EL84 equivalent ??
  57. Ixys IXCP10M45s IC
  58. Help with hybrid mosfet valve amp
  59. Substitute for 6gw8 in Heathkit aa-32
  60. U-Follower: Output from Cathode or Plate?
  61. Getting rid of oscillations in the preamp
  62. has anyone used the 4-125A in SE amp ?
  63. line preamp using 6SN7 instead of 12AU7
  64. 3-pong conversion for Acoustic amplifier
  65. 6v6pp design
  66. CCS Plate Load
  67. All tube voltage doubler
  68. best value/performance ECC83 on market
  69. Help needed for my preamp
  70. 6H6p cascode differential driving 2A3 PP
  71. Best phono / line preamp
  72. Point to Point
  73. gain curve questions
  74. Questions concerning Aikido Line amp
  75. Partial cathode bypass to effect a treble boost.
  76. SE bass
  77. choke orientation
  78. Musical Fidelity X-PRE schematic
  79. Circuitmaker Spice question
  80. Trouble with a paraphase PI
  81. 27 pre PS question..
  82. 6AV5 g2 driver
  83. Calculate PSU output impedance?
  84. Output stage biasing, with the driver stage
  85. tube pedal plate voltages?
  86. grounding and 12AV6 diodes
  87. 6as7 Pse
  88. Looking for datasheets
  89. Ping Albert from Canada
  90. Old Tektronix booklet
  91. fisher 800c phase inverter adjustment 2
  92. Quick Transformer Question
  93. Power supply for Heathkit
  94. low-power output tube quality
  95. Conn Caprice organ
  96. Conservation of tubes
  97. Brimar EM87
  98. Tube sockets without the ceramic carrier.
  99. SET with tube-based CCS???
  100. fisher 800c modifications
  101. Bottlehead meet.
  102. Tie cathode to heater??
  103. anyone seen it tried like this?
  104. What do people think of the SETH 2A3 PP?
  105. Very high plate voltage EL34 amp
  106. How About Bridging SE
  107. Fisher 800c Has Odd Cathode Reading
  108. What part of DIY do you LOVE?
  109. Priboi tweakers ?
  110. 5751 and 12ax7
  111. LM317 + ceramic cap Q
  112. Derive Triode Curves from Pentode Curves?
  113. 7701 distortion device?
  114. Looking for the perfect giftshop
  115. 300b
  116. Choked ripple killer for SE?
  117. Dynaco Kits
  118. Positive bias for tube CF?
  119. need help
  120. Xindak attenuation for use with Leak Stereo 20, help please
  121. Series heaters = small problem?
  122. Recommend an EL84 tube for HIFI
  123. Help - need some info on this valve amp, please
  124. H. Olson's amps
  125. 12AT7 and the Simple EL84
  126. New K-12g only one channel working
  127. Kofi Annan in: "Kofi Makes a 300b DRD... and You Get to Help!"
  128. Rauland Borg 6L6 amp Need Info
  129. Hum Noise!
  130. Tube regulator for solidstate devices
  131. 6gu7 a sub for 6cg7/6fq7?
  132. obsession sd-600 300b mono block
  133. how do you know you need matched pair?
  134. Nobu Shishido's 805 SET interstage
  135. KT88SE, turning OPT
  136. New to tubes.
  137. OB with.......well, TL Audio's iTUBE :)
  138. Matched tubes required?
  139. GU-50 output trafo
  140. Are Hammond power transformers good enough ?
  141. Transformers.
  142. Quicky - magic eye between preamp and power stage
  143. HT to rectifier
  144. 6AV5 spice model
  145. Audio Research LS2 from 110V to 220V
  146. 6V6 PP power xfrmr
  147. I think I've damaged my amp
  148. Which brands apart wyetech uses Grounded grid?
  149. Parallel vs. series filament supply - or another filament idea
  150. 6146W Power Amplifier. Please help!
  151. grommes 511a mono tube amp/reciever
  152. First phono needs QC
  153. Meixing 3008ab problems
  154. protecting a VR tube
  155. what's the purpose of pins 3 and 7 in an 8pin VR tube?
  156. help me i need schematic of Music angel PP el34
  157. How long to pre-heat filaments on 6SN7s?
  158. Amplifier Layout - Help & advice needed
  159. Any good places to shop for diy in beijing?
  160. White CF with 6SN7
  161. Cheapo Guitar Amp
  162. Power Amp
  163. is there any sound in a 30A5 / HL94 ?
  164. the hybrid one
  165. 4-1000a se subwoofer amp
  166. ear 834p output resistance
  167. Output transformer push pull
  168. Cheap Lunch?
  169. Source for Alps RK18 pot's..?
  170. Triode strapped tetrode
  171. ok, help me out here......
  172. Homebrew Toroid O/P Tranny
  173. GIBSON GA-79RVT Stereo Cab plans or dims
  174. strange noises from ECL86 amp
  175. Retouching knicks and scratches on chassis
  176. MingDa MC-7R noise and gain
  177. start-up sequence of Aikido preamp / SS power amp
  178. Driving a 6B4G with a single 5687/7044/E182CC?
  179. phono stage with different replay equalization?
  180. Lprimary variation in pair old opts
  181. 8417 triode connected tube data
  182. 5763 = El84?
  183. 5687 to 6L6 SE ?
  184. TubeCad Feedforward Shunt Regulator
  185. "12EA6" Pentode !
  186. Marshall EL34-100/100
  187. short-circuit rectifier EZ80 !
  188. Good radio tube:6AQ5/6005
  189. Replaced pulled tubes with a resistor?
  190. Choke input PSU, drawbacks?
  191. Heater PS alternative / Redux
  192. Gold or silver dress-up rings for tube amps.
  193. 50C5 conversion
  194. Sa-5.1 blow fuse
  195. Hum problem of preamp
  196. Chassis ground blows fuse
  197. 7193 (2c22) preamp buzz/hum
  198. Se Opt
  199. Does anhone use those switching power supply for the heaters?
  200. Tube Minidoc, featuring New York Noise
  201. Help Choosing A Sowter Trans For My DAC?
  202. fisher 800c clipping at ultra low volume
  203. "audiodigit" tubalizer & tubepre original schematic
  204. Dht Guitar Amps
  205. rating of series caps
  206. F704
  207. tube socket PCB library or dimensions
  208. motorboating
  209. 6AN8 Triode connection + EL 84 PP
  210. Please help amend 6AS7PP circuit
  211. El84 Pp
  212. 6V6 Ultralinear
  213. Dear Moderators
  214. 845 se
  215. Bell 2122-B integrated amp - tube suggestions
  216. Wirewound pot for Rk
  217. KT88/90 F2011 Schematic
  218. United Electric 967
  219. Scott 222c mods...?
  220. Switching supply for 300B filaments
  221. ECF80/6BL8
  222. 24v tube buffer & line stage schematic
  223. Vintage gear hunting
  224. Seperate PSU Transformers? Filament Supplys?
  225. 828 is better
  226. Hum on a choke loaded stage
  227. SE Transformer question
  228. Design question - How to make amp porn visible?
  229. Leak Stereo 20 - Johan's Square Wave Theory
  230. K-12G First Time Build
  231. Vishay vt52-55 resistors in a tube amp
  232. EL84 Push-Pull ccs bias
  233. Eight 807's in Push Pull?
  234. Working with Current O/P DAC Chips
  235. Unison research Preludio schematic
  236. Rewinding Power transformer
  237. Information needed on RCA SPECIAL RED TUBES
  238. Score?
  239. Herron phono
  240. tube preamp + SS power amp.
  241. Puzzler
  242. HI-Fi 6p13p
  243. Resistor values
  244. To chassies SE amp,PSU question
  245. Grounding & board Layout questions
  246. Look for a beefy driver tube.
  247. ECC81
  248. 5687 v.s. 6922 preamp/xover
  249. amorphous iron core good or not
  250. Pre-Amp

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