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  1. Need help with tubed output for PCM1793 DAC
  2. Single ended transformer grounding question
  3. Reforming Caps with Variac
  4. First Shot at a 41 SE amp
  5. [Question] Ground Error?
  6. TOMIKO OPT-SE, any good?
  7. 6550 Williamson - Low Bass Response...
  8. Preamp design question
  9. Reading Oscilloscope Traces -For Dummies
  10. Power Supply Question
  11. PI Question Guitar Amp Related
  12. Altec 1568A modifications for comments and help…. again
  13. H & K Tube 20 unruly gain
  14. Electro-Harmonix interview
  15. Using LED bias for 4.5 mA cathode current, is it a good idea?
  16. amp dead?
  17. 7189 vs EL84 +458v plate
  18. What does your Aikido drive?
  19. Help with Decware SE84 Kit!
  20. Hybrid Amplifier in Small cases
  21. audio mixer with tubes?
  22. Epiphone Galaxy 25 transformer problem
  23. Help with KT88 biasing
  24. Bad Schottky??
  25. Aikido Diagnostic
  26. Could this become a Baby Huey killer ?
  27. SV83 vs EL84
  28. KT88 PP-5 Monoblock Amplifier
  29. RE604 SET amp
  30. Dropping rectifier filament voltage
  31. need suggestion about MC pre-pre
  32. New gain stage .. Opinions???
  33. Using SS to augment < 100Hz?
  34. A help with an soviet transformer.
  35. I thought that I had seen everything
  36. Triatic PP-amp with 6p14p
  37. Single 6N6P stereo pre-amp
  38. Tubelab SE input tube filament
  39. high frequency oscillation and decoupling question
  40. Long tailed pair schematic questions
  41. CCS Kit options
  42. Variac Question for Thatch_Ear
  43. 13e1
  44. Rogers Tube Amp
  45. Pair of McIntosh MC-60 on Dallas Craigslist
  46. Lundahl LL1517. What is it good for?
  47. Edcor OPT Voltage Rating?
  48. Which Tube to Start with?
  49. Basic Transformer hookup wiring
  50. Beta followers, biasing.
  51. 6W 2xEL519 Half-hybrid Class-A OTL
  52. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  53. Wiring / Layout question
  54. Yaqin MC10K
  55. help me lower the gain of this preamp pls
  56. How to wiring the transformer
  57. "universal" P-P driver board
  58. series or parallel?
  59. Question about Cathode bias in this Magnavox amp. . .
  60. GK71 B+ turn on delay
  61. Paralleling Triodes in a 6SN7GT
  62. 6C33C-B. PP or SE ?
  63. 6550 Triode B+
  64. Aikido Phono Pre.....any good???
  65. Tube Preamp L&amp;R Channel different current draw
  66. amp is dead!
  67. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  68. Running stereo through a single tube with dual triodes?
  69. Looking for 6AQ5 audio preamp schematic!
  70. Quad KT88 oscillation problem
  71. El86 driving high beta bipolar power tr
  72. Wikipedia article: Tube sound
  73. Installed 12&quot; Speaker in Pro Jr---Now What??
  74. How do I design a pentode constant current source plate load?
  75. Socket for 6AQ5
  76. new 845? Who produces it?
  77. Looking for a 45 SE Schematic
  78. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  79. Tube Amps left outdoors 24/7
  80. The beast OTL
  81. Input transformer: floating input = distortion
  82. Altmann's Split Feedback concept
  83. preamp for a JE LABS 2A3DX amp
  84. Phase flip needed -Interstage Transformer?
  85. Can your amp do this?
  86. AES out of 1625?
  87. Any info on Haltron 6BL8 tubes?
  88. Need Schematic for 12 Volt Tube Buffer
  89. Input impedance for Simple SE?
  90. SR-101 Pioneer Spring Reverb
  91. Basic Transformer Question - how do I know build possibilities?
  92. Source for 2.5VCT 5A filament transformers
  93. Nichicon VR VZ or GU
  94. Missing 6.3V CT/'Cockeyed Bridge' problem
  95. Best plate voltage for 6dj8 at +-6ma
  96. Max supply voltage for small DHT's
  97. Operating Temperature of KT88?
  98. First Tube Amp
  99. earthing advice on a US amp
  100. distortion at low volume
  101. interstage transformer cheating?
  102. PP EL34 or 6L6 circuits?
  103. Rectifier Capacator (voltage adjust)
  104. Passive RIAA and cap variation
  105. 6T9 push pull with Cathode Coupled input
  106. mixed bias
  107. Need help: tube DAC and Phono pre-amp
  108. Feedback equation
  109. Lafayette PA 675 Schematic ?
  110. phono preamp?
  111. Input tube recommendations...
  112. blind test tube preamp free for all
  113. Estimate Miller of Triode Strapped Pentode
  114. Tube Care for Prolonged Life
  115. bias resistor to use for a PP 300B?
  116. 12AY7 preamp schematic
  117. visio shapes
  118. vt25 in pre amp
  119. Wire Wound Pontentiometers - resistors
  120. Sound City B120
  121. Single supply 6922 buffer with 2SK CCS
  122. Aikido and 30W Class AB power buffer?
  123. Simple Pentode driver for a 45 ?
  124. Sennheiser HD 650 Question
  125. ampeg svt 2 pro preamp problem
  126. Edcor specs?
  127. hook up wire
  128. 6X5, 2x 6SL7 &amp; a 6v6GT....
  129. strange tube? E-8128
  130. Value of grid-leak resistor
  131. TubeTech Valves
  132. 1st build done.
  133. Tube socket does not fit tube
  134. 300B SET Bias Help
  135. This Connector for an Amp Umbilical?
  136. Chassis Grounding and rectifiers
  137. TechTube TM Blackburn status
  138. Protection of tubes/amp...
  139. 6sf5
  140. EF86 - Interstage transformer - EL84 PP AB
  141. Schadeode
  142. High-power amplifier using transmitting tubes
  143. Basic testing/meter question
  144. Mains voltage change for Sonic Frontiers SFS80 ?
  145. transformer unused secondary noobie question
  146. Acrosound High Power Williamson - HELP!!!!
  147. 300B Cathode Feedback + Cathode Bias
  148. "Budget" GM70 SET
  149. Chokes next to output transformers?
  150. Adding more power tubes and make a tube amp switching them?
  151. 1. time biasing...
  152. SE solution wanted
  153. tube rectifier
  154. Baldwin amp, yet another amp conversion project
  155. sorry, yet another newbie - what can I make with these???
  156. Design Help (load line) on a SE Mono Block Amp build
  157. Plate Choke SRPP…. What do think?
  158. Looking for a Fisher chassis 51 mono amp
  159. Majestic Transformers
  160. Inverted Mos HV soft start
  161. Strange S5 K-16LS oscilloscope readings
  162. Why don't pentodes require aligned grids?
  163. First design for a tube noob
  164. Newbie and ASL Wave 8 problems
  165. Evil Experiments - Hammond Paper in Oil Caps
  166. Now I know what this Tranny can do
  167. Pinnacle tubes??
  168. First Project.... and Hello
  169. VTL Integrator schematic
  170. Old transformators...
  171. 12AU7/12AT7/12AX7 preamp schmatic needed
  172. Booz preamp
  173. Mystery &quot;The Fisher&quot; console mono amp
  174. Cracks and hiss in tube guitar amp
  175. Voltage Doubler
  176. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  177. Sakuma-San Pilgramage?
  178. Any HP 8903 audio analyzer owners?
  179. xL508/6KW6/17KW6
  180. 6C45 phono input only?
  181. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  182. Switch box using VR glow tubes
  183. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  184. TJ 845 Tubes
  185. Looking for a web tutorial on basic calculations
  186. Berman linestage- do I reference heaters or not?!
  187. calculating gain
  188. Simple EL84 amp...
  189. Tube Direct Box - Got design?
  190. Raphaelite Audio Transformers &amp; Sino Tube Amplifier Kits - What's your experience ?
  191. S-5 Electronics K-16LS & 6V6 Substitution
  192. how to calculate current requirement
  193. Stancor Transformer Data Sheet Needed
  194. 6BL7 replecement
  195. Toroid PT question
  196. New SET Amp
  197. What do you guys think..
  198. Output Stage in MJ Question
  199. Input voltage on an integrated tube amp
  200. 6sf5 = 1/2 12ax7?
  201. Observations of amplifier sound
  202. Sovtek KT88
  203. 24 or 24a as driver in 2 stage..?
  204. Too high transformator voltages...
  205. This power supply ok?
  206. 300B valves
  207. Modulation transformer for a driver transformer?
  208. Is 6V DC too low for heater filament?
  209. mundorff 0.47 silver in oil
  210. need manual for heathkit sp2
  211. Interresting Quiz. Which tube is this?
  212. el84 burn in time ?
  213. Tube Amp Compensation Q
  214. Quad II Advice
  215. Bias problem- 1 Socket shows extremely low bias!
  216. ECC88 vs E88CC
  217. Finally, back to my Simple SE project
  218. can trafo laminations rest on chassis?
  219. Ping Poindexter - 6SN7 Moebius Linestage Question
  220. More information wanted on this Phase Splitter Circuit
  221. Converting tube tester to Mutual Conductance
  222. 6UA4-GTA Question
  223. oscilloscope turned guitar amp?
  224. LED cathode bias - how to pick LED?
  225. preamp question
  226. Hickok tube tester calibration help needed
  227. Watch this !
  228. any Welborne Labs Ultrapath owners ?
  229. McIntosh transformer turns ratio
  230. 12E1 & S11E12 as a KT88 substitution
  231. Dynaco ST-70 Triode Conversion Techniques
  232. Larry Moore power supply
  233. SE to Balanced tube preamp idea
  234. Help on Cascode DN2540 CCS
  235. Kt88 Pp
  236. What was the diy world like before the internet?
  237. Updated my website
  238. Marshall AVT 50 preamp gain/distortion increase
  239. Interstage question in 6ac5G design
  240. Using a powered sub with my tube amp
  241. 807pp suggestions and guidance please
  242. 2 stage IT coupled SE suggestions.?
  243. WE429A similar to 6V6?
  244. 6FQ7 in RH84
  245. Deluxe Reverb Re-Issue High Frequency Noise.
  246. What splitter for this design ?
  247. preamp kit?
  248. PP power supply design questions
  249. Hammond 1650P for KT88 PP - any experience?
  250. Gibson tube amp mod for JAZZ

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