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  1. UTC Linear Standard High Level matching transformers
  2. Manley Compact 160w noise problem -please help
  3. D3a Experimenters Breadboard Project
  4. Dtmm
  5. Running Single Ended 6V6 in Triode Mode
  6. 6v6pp Finished
  7. Stereo Buffer with a single twin triode
  8. Marshall volume drop off help
  9. Anybody recognize this pentode?
  10. Original schemes of amplifiers for 45 tubes of 1920 and 1930 years?
  11. My new amplifier£_300BSE!
  12. low zout vs output transfo
  13. can't find valve art tube - and glowey tube pic
  14. Which Phono Pre???
  15. EICO HF-20 Guitar Amp Convert
  16. BB 1702 DAC + transformer I/V ?
  17. aikido build thread-
  18. Triode Connected 6BK5
  19. need help in building tube amplifier 10 watter
  20. Parasitic oscillations in general
  21. Help Russian tube experts.
  22. forced aircooling
  23. Dirty Cheap Vintage Pot Fix - Your Opinion Please
  24. ask jan first
  25. running 6S4S/6C4C hot .. calling widowmaker
  26. An Odd Duck -- Gibson BR-6f Guitar Amp
  27. Covi Mark II OTL Help
  28. Volume pot between triodes?
  29. Series Pass Transistor for TL-783
  30. Anyone else have the new Mullard EL34's?
  31. VR tubes in single ended circuits
  32. Transformer for Tube Amps?
  33. "Magga Amp Workshop" builds again (Simple 45 Project)
  34. How to handle Reclaimed Transformers
  35. Dual supply...
  36. How much would this cost/how complicated would this be...
  37. low cost DHT hum pots vendors?
  38. Tube Buffer – question?
  39. Bogen CHB 10A questions
  40. 12B4 Preamp
  41. adding output tubes etc to pre amp
  42. primaluna dialogue 5 and fanboys?
  43. yaqin mc-100b
  44. KT88 in place of 6550?
  45. Tube manaul data sheets
  46. Need a bias supply how??
  47. Wouldn't you just love to have these!. United Electronics 211's
  48. Using single tube of Dual
  49. 21st century tube? Non-Vacuum
  50. making two minibloks for stereo
  51. Lynn Olson Raven Question
  52. Inrush current limiting heater filaments
  53. Tube amp with "meter"?
  54. lytics and choke AFTER regulator
  55. Boosing the power of your existing amp.
  56. Component ID from a 50EH5 Amp
  57. Music Angel KT88 Bridged /Bias problem
  58. Output of preamp drops when overdriven
  59. Choke load calculation...
  60. 807 SE amp schematic
  61. DC Heater Voltage
  62. Choke loading vs. SRPP
  63. Unloaded Power Transformer Current Draw/Janus-Aikido snipet
  64. Need help with tubed output for PCM1793 DAC
  65. Single ended transformer grounding question
  66. Reforming Caps with Variac
  67. First Shot at a 41 SE amp
  68. [Question] Ground Error?
  69. TOMIKO OPT-SE, any good?
  70. 6550 Williamson - Low Bass Response...
  71. Preamp design question
  72. Reading Oscilloscope Traces -For Dummies
  73. Power Supply Question
  74. PI Question Guitar Amp Related
  75. Altec 1568A modifications for comments and help…. again
  76. H & K Tube 20 unruly gain
  77. Electro-Harmonix interview
  78. Using LED bias for 4.5 mA cathode current, is it a good idea?
  79. amp dead?
  80. 7189 vs EL84 +458v plate
  81. What does your Aikido drive?
  82. Help with Decware SE84 Kit!
  83. Hybrid Amplifier in Small cases
  84. audio mixer with tubes?
  85. Epiphone Galaxy 25 transformer problem
  86. Help with KT88 biasing
  87. Bad Schottky??
  88. Aikido Diagnostic
  89. Could this become a Baby Huey killer ?
  90. SV83 vs EL84
  91. KT88 PP-5 Monoblock Amplifier
  92. RE604 SET amp
  93. Dropping rectifier filament voltage
  94. need suggestion about MC pre-pre
  95. New gain stage .. Opinions???
  96. Using SS to augment < 100Hz?
  97. A help with an soviet transformer.
  98. I thought that I had seen everything
  99. Triatic PP-amp with 6p14p
  100. Single 6N6P stereo pre-amp
  101. Tubelab SE input tube filament
  102. high frequency oscillation and decoupling question
  103. Long tailed pair schematic questions
  104. CCS Kit options
  105. Variac Question for Thatch_Ear
  106. 13e1
  107. Rogers Tube Amp
  108. Pair of McIntosh MC-60 on Dallas Craigslist
  109. Lundahl LL1517. What is it good for?
  110. Edcor OPT Voltage Rating?
  111. Which Tube to Start with?
  112. Basic Transformer hookup wiring
  113. Beta followers, biasing.
  114. 6W 2xEL519 Half-hybrid Class-A OTL
  115. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  116. Wiring / Layout question
  117. Yaqin MC10K
  118. help me lower the gain of this preamp pls
  119. How to wiring the transformer
  120. "universal" P-P driver board
  121. series or parallel?
  122. Question about Cathode bias in this Magnavox amp. . .
  123. GK71 B+ turn on delay
  124. Paralleling Triodes in a 6SN7GT
  125. 6C33C-B. PP or SE ?
  126. 6550 Triode B+
  127. Aikido Phono Pre.....any good???
  128. Tube Preamp L&amp;R Channel different current draw
  129. amp is dead!
  130. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  131. Running stereo through a single tube with dual triodes?
  132. Looking for 6AQ5 audio preamp schematic!
  133. Quad KT88 oscillation problem
  134. El86 driving high beta bipolar power tr
  135. Wikipedia article: Tube sound
  136. Installed 12&quot; Speaker in Pro Jr---Now What??
  137. How do I design a pentode constant current source plate load?
  138. Socket for 6AQ5
  139. new 845? Who produces it?
  140. Looking for a 45 SE Schematic
  141. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  142. Tube Amps left outdoors 24/7
  143. The beast OTL
  144. Input transformer: floating input = distortion
  145. Altmann's Split Feedback concept
  146. preamp for a JE LABS 2A3DX amp
  147. Phase flip needed -Interstage Transformer?
  148. Can your amp do this?
  149. AES out of 1625?
  150. Any info on Haltron 6BL8 tubes?
  151. Need Schematic for 12 Volt Tube Buffer
  152. Input impedance for Simple SE?
  153. SR-101 Pioneer Spring Reverb
  154. Basic Transformer Question - how do I know build possibilities?
  155. Source for 2.5VCT 5A filament transformers
  156. Nichicon VR VZ or GU
  157. Missing 6.3V CT/'Cockeyed Bridge' problem
  158. Best plate voltage for 6dj8 at +-6ma
  159. Max supply voltage for small DHT's
  160. Operating Temperature of KT88?
  161. First Tube Amp
  162. earthing advice on a US amp
  163. distortion at low volume
  164. interstage transformer cheating?
  165. PP EL34 or 6L6 circuits?
  166. Rectifier Capacator (voltage adjust)
  167. Passive RIAA and cap variation
  168. 6T9 push pull with Cathode Coupled input
  169. mixed bias
  170. Need help: tube DAC and Phono pre-amp
  171. Feedback equation
  172. Lafayette PA 675 Schematic ?
  173. phono preamp?
  174. Input tube recommendations...
  175. blind test tube preamp free for all
  176. Estimate Miller of Triode Strapped Pentode
  177. Tube Care for Prolonged Life
  178. bias resistor to use for a PP 300B?
  179. 12AY7 preamp schematic
  180. visio shapes
  181. vt25 in pre amp
  182. Wire Wound Pontentiometers - resistors
  183. Sound City B120
  184. Single supply 6922 buffer with 2SK CCS
  185. Aikido and 30W Class AB power buffer?
  186. Simple Pentode driver for a 45 ?
  187. Sennheiser HD 650 Question
  188. ampeg svt 2 pro preamp problem
  189. Edcor specs?
  190. hook up wire
  191. 6X5, 2x 6SL7 &amp; a 6v6GT....
  192. strange tube? E-8128
  193. Value of grid-leak resistor
  194. TubeTech Valves
  195. 1st build done.
  196. Tube socket does not fit tube
  197. 300B SET Bias Help
  198. This Connector for an Amp Umbilical?
  199. Chassis Grounding and rectifiers
  200. TechTube TM Blackburn status
  201. Protection of tubes/amp...
  202. 6sf5
  203. EF86 - Interstage transformer - EL84 PP AB
  204. Schadeode
  205. High-power amplifier using transmitting tubes
  206. Basic testing/meter question
  207. Mains voltage change for Sonic Frontiers SFS80 ?
  208. transformer unused secondary noobie question
  209. Acrosound High Power Williamson - HELP!!!!
  210. 300B Cathode Feedback + Cathode Bias
  211. "Budget" GM70 SET
  212. Chokes next to output transformers?
  213. Adding more power tubes and make a tube amp switching them?
  214. 1. time biasing...
  215. SE solution wanted
  216. tube rectifier
  217. Baldwin amp, yet another amp conversion project
  218. sorry, yet another newbie - what can I make with these???
  219. Design Help (load line) on a SE Mono Block Amp build
  220. Plate Choke SRPP…. What do think?
  221. Looking for a Fisher chassis 51 mono amp
  222. Majestic Transformers
  223. Inverted Mos HV soft start
  224. Strange S5 K-16LS oscilloscope readings
  225. Why don't pentodes require aligned grids?
  226. First design for a tube noob
  227. Newbie and ASL Wave 8 problems
  228. Evil Experiments - Hammond Paper in Oil Caps
  229. Now I know what this Tranny can do
  230. Pinnacle tubes??
  231. First Project.... and Hello
  232. VTL Integrator schematic
  233. Old transformators...
  234. 12AU7/12AT7/12AX7 preamp schmatic needed
  235. Booz preamp
  236. Mystery &quot;The Fisher&quot; console mono amp
  237. Cracks and hiss in tube guitar amp
  238. Voltage Doubler
  239. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  240. Sakuma-San Pilgramage?
  241. Any HP 8903 audio analyzer owners?
  242. xL508/6KW6/17KW6
  243. 6C45 phono input only?
  244. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  245. Switch box using VR glow tubes
  246. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  247. TJ 845 Tubes
  248. Looking for a web tutorial on basic calculations
  249. Berman linestage- do I reference heaters or not?!
  250. calculating gain

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