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