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  1. VR tubes in single ended circuits
  2. Transformer for Tube Amps?
  3. "Magga Amp Workshop" builds again (Simple 45 Project)
  4. How to handle Reclaimed Transformers
  5. Dual supply...
  6. How much would this cost/how complicated would this be...
  7. Tube Buffer – question?
  8. Bogen CHB 10A questions
  9. 12B4 Preamp
  10. adding output tubes etc to pre amp
  11. primaluna dialogue 5 and fanboys?
  12. yaqin mc-100b
  13. KT88 in place of 6550?
  14. Tube manaul data sheets
  15. Need a bias supply how??
  16. Wouldn't you just love to have these!. United Electronics 211's
  17. Using single tube of Dual
  18. 21st century tube? Non-Vacuum
  19. making two minibloks for stereo
  20. Lynn Olson Raven Question
  21. Inrush current limiting heater filaments
  22. Tube amp with "meter"?
  23. lytics and choke AFTER regulator
  24. Boosing the power of your existing amp.
  25. Component ID from a 50EH5 Amp
  26. Music Angel KT88 Bridged /Bias problem
  27. Output of preamp drops when overdriven
  28. Choke load calculation...
  29. 807 SE amp schematic
  30. DC Heater Voltage
  31. Choke loading vs. SRPP
  32. Unloaded Power Transformer Current Draw/Janus-Aikido snipet
  33. Need help with tubed output for PCM1793 DAC
  34. Single ended transformer grounding question
  35. First Shot at a 41 SE amp
  36. [Question] Ground Error?
  37. TOMIKO OPT-SE, any good?
  38. 6550 Williamson - Low Bass Response...
  39. Preamp design question
  40. Power Supply Question
  41. Altec 1568A modifications for comments and help…. again
  42. H & K Tube 20 unruly gain
  43. Electro-Harmonix interview
  44. Using LED bias for 4.5 mA cathode current, is it a good idea?
  45. amp dead?
  46. 7189 vs EL84 +458v plate
  47. What does your Aikido drive?
  48. Help with Decware SE84 Kit!
  49. Hybrid Amplifier in Small cases
  50. audio mixer with tubes?
  51. Help with KT88 biasing
  52. Bad Schottky??
  53. Aikido Diagnostic
  54. Could this become a Baby Huey killer ?
  55. SV83 vs EL84
  56. KT88 PP-5 Monoblock Amplifier
  57. RE604 SET amp
  58. Dropping rectifier filament voltage
  59. need suggestion about MC pre-pre
  60. New gain stage .. Opinions???
  61. Using SS to augment < 100Hz?
  62. A help with an soviet transformer.
  63. I thought that I had seen everything
  64. Triatic PP-amp with 6p14p
  65. Single 6N6P stereo pre-amp
  66. high frequency oscillation and decoupling question
  67. Long tailed pair schematic questions
  68. CCS Kit options
  69. 13e1
  70. Rogers Tube Amp
  71. Pair of McIntosh MC-60 on Dallas Craigslist
  72. Lundahl LL1517. What is it good for?
  73. Edcor OPT Voltage Rating?
  74. Which Tube to Start with?
  75. Basic Transformer hookup wiring
  76. Beta followers, biasing.
  77. 6W 2xEL519 Half-hybrid Class-A OTL
  78. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  79. Wiring / Layout question
  80. Yaqin MC10K
  81. help me lower the gain of this preamp pls
  82. How to wiring the transformer
  83. "universal" P-P driver board
  84. series or parallel?
  85. Question about Cathode bias in this Magnavox amp. . .
  86. GK71 B+ turn on delay
  87. Paralleling Triodes in a 6SN7GT
  88. 6C33C-B. PP or SE ?
  89. 6550 Triode B+
  90. Aikido Phono Pre.....any good???
  91. Tube Preamp L&amp;R Channel different current draw
  92. amp is dead!
  93. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  94. Running stereo through a single tube with dual triodes?
  95. Looking for 6AQ5 audio preamp schematic!
  96. Quad KT88 oscillation problem
  97. El86 driving high beta bipolar power tr
  98. Installed 12&quot; Speaker in Pro Jr---Now What??
  99. How do I design a pentode constant current source plate load?
  100. Socket for 6AQ5
  101. new 845? Who produces it?
  102. Looking for a 45 SE Schematic
  103. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  104. Tube Amps left outdoors 24/7
  105. The beast OTL
  106. Input transformer: floating input = distortion
  107. Altmann's Split Feedback concept
  108. preamp for a JE LABS 2A3DX amp
  109. Phase flip needed -Interstage Transformer?
  110. Can your amp do this?
  111. AES out of 1625?
  112. Any info on Haltron 6BL8 tubes?
  113. Need Schematic for 12 Volt Tube Buffer
  114. SR-101 Pioneer Spring Reverb
  115. Basic Transformer Question - how do I know build possibilities?
  116. Source for 2.5VCT 5A filament transformers
  117. Nichicon VR VZ or GU
  118. Missing 6.3V CT/'Cockeyed Bridge' problem
  119. Best plate voltage for 6dj8 at +-6ma
  120. Max supply voltage for small DHT's
  121. Operating Temperature of KT88?
  122. First Tube Amp
  123. earthing advice on a US amp
  124. distortion at low volume
  125. interstage transformer cheating?
  126. PP EL34 or 6L6 circuits?
  127. Rectifier Capacator (voltage adjust)
  128. Passive RIAA and cap variation
  129. 6T9 push pull with Cathode Coupled input
  130. mixed bias
  131. Need help: tube DAC and Phono pre-amp
  132. Feedback equation
  133. Lafayette PA 675 Schematic ?
  134. phono preamp?
  135. Input tube recommendations...
  136. blind test tube preamp free for all
  137. Estimate Miller of Triode Strapped Pentode
  138. Tube Care for Prolonged Life
  139. bias resistor to use for a PP 300B?
  140. 12AY7 preamp schematic
  141. visio shapes
  142. vt25 in pre amp
  143. Single supply 6922 buffer with 2SK CCS
  144. Aikido and 30W Class AB power buffer?
  145. Simple Pentode driver for a 45 ?
  146. Sennheiser HD 650 Question
  147. Edcor specs?
  148. 6X5, 2x 6SL7 &amp; a 6v6GT....
  149. strange tube? E-8128
  150. Value of grid-leak resistor
  151. TubeTech Valves
  152. 1st build done.
  153. Tube socket does not fit tube
  154. 300B SET Bias Help
  155. This Connector for an Amp Umbilical?
  156. Chassis Grounding and rectifiers
  157. TechTube TM Blackburn status
  158. Protection of tubes/amp...
  159. 6sf5
  160. EF86 - Interstage transformer - EL84 PP AB
  161. Schadeode
  162. High-power amplifier using transmitting tubes
  163. Basic testing/meter question
  164. Mains voltage change for Sonic Frontiers SFS80 ?
  165. transformer unused secondary noobie question
  166. Acrosound High Power Williamson - HELP!!!!
  167. 300B Cathode Feedback + Cathode Bias
  168. "Budget" GM70 SET
  169. Chokes next to output transformers?
  170. Adding more power tubes and make a tube amp switching them?
  171. 1. time biasing...
  172. SE solution wanted
  173. tube rectifier
  174. Baldwin amp, yet another amp conversion project
  175. sorry, yet another newbie - what can I make with these???
  176. Design Help (load line) on a SE Mono Block Amp build
  177. Plate Choke SRPP…. What do think?
  178. Looking for a Fisher chassis 51 mono amp
  179. Majestic Transformers
  180. Inverted Mos HV soft start
  181. Strange S5 K-16LS oscilloscope readings
  182. Why don't pentodes require aligned grids?
  183. First design for a tube noob
  184. Newbie and ASL Wave 8 problems
  185. Now I know what this Tranny can do
  186. Pinnacle tubes??
  187. First Project.... and Hello
  188. VTL Integrator schematic
  189. Old transformators...
  190. 12AU7/12AT7/12AX7 preamp schmatic needed
  191. Booz preamp
  192. Mystery &quot;The Fisher&quot; console mono amp
  193. Voltage Doubler
  194. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  195. Sakuma-San Pilgramage?
  196. Any HP 8903 audio analyzer owners?
  197. xL508/6KW6/17KW6
  198. 6C45 phono input only?
  199. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  200. Switch box using VR glow tubes
  201. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  202. TJ 845 Tubes
  203. Looking for a web tutorial on basic calculations
  204. Berman linestage- do I reference heaters or not?!
  205. calculating gain
  206. Simple EL84 amp...
  207. Tube Direct Box - Got design?
  208. Raphaelite Audio Transformers &amp; Sino Tube Amplifier Kits - What's your experience ?
  209. S-5 Electronics K-16LS & 6V6 Substitution
  210. how to calculate current requirement
  211. Stancor Transformer Data Sheet Needed
  212. 6BL7 replecement
  213. Toroid PT question
  214. New SET Amp
  215. What do you guys think..
  216. Output Stage in MJ Question
  217. Input voltage on an integrated tube amp
  218. 6sf5 = 1/2 12ax7?
  219. Observations of amplifier sound
  220. Sovtek KT88
  221. 24 or 24a as driver in 2 stage..?
  222. Too high transformator voltages...
  223. This power supply ok?
  224. 300B valves
  225. Modulation transformer for a driver transformer?
  226. Is 6V DC too low for heater filament?
  227. need manual for heathkit sp2
  228. Interresting Quiz. Which tube is this?
  229. el84 burn in time ?
  230. Tube Amp Compensation Q
  231. Quad II Advice
  232. Bias problem- 1 Socket shows extremely low bias!
  233. ECC88 vs E88CC
  234. can trafo laminations rest on chassis?
  235. Ping Poindexter - 6SN7 Moebius Linestage Question
  236. More information wanted on this Phase Splitter Circuit
  237. 6UA4-GTA Question
  238. LED cathode bias - how to pick LED?
  239. preamp question
  240. Watch this !
  241. any Welborne Labs Ultrapath owners ?
  242. McIntosh transformer turns ratio
  243. 12E1 & S11E12 as a KT88 substitution
  244. Dynaco ST-70 Triode Conversion Techniques
  245. Larry Moore power supply
  246. SE to Balanced tube preamp idea
  247. Help on Cascode DN2540 CCS
  248. Kt88 Pp
  249. What was the diy world like before the internet?
  250. Updated my website

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