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  1. Aikido Diagnostic
  2. Could this become a Baby Huey killer ?
  3. SV83 vs EL84
  4. KT88 PP-5 Monoblock Amplifier
  5. RE604 SET amp
  6. Dropping rectifier filament voltage
  7. need suggestion about MC pre-pre
  8. New gain stage .. Opinions???
  9. Using SS to augment < 100Hz?
  10. A help with an soviet transformer.
  11. I thought that I had seen everything
  12. Triatic PP-amp with 6p14p
  13. Single 6N6P stereo pre-amp
  14. Tubelab SE input tube filament
  15. high frequency oscillation and decoupling question
  16. Long tailed pair schematic questions
  17. CCS Kit options
  18. Variac Question for Thatch_Ear
  19. 13e1
  20. Rogers Tube Amp
  21. Pair of McIntosh MC-60 on Dallas Craigslist
  22. Lundahl LL1517. What is it good for?
  23. Edcor OPT Voltage Rating?
  24. Which Tube to Start with?
  25. Basic Transformer hookup wiring
  26. Beta followers, biasing.
  27. 6W 2xEL519 Half-hybrid Class-A OTL
  28. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  29. Wiring / Layout question
  30. Yaqin MC10K
  31. help me lower the gain of this preamp pls
  32. How to wiring the transformer
  33. "universal" P-P driver board
  34. series or parallel?
  35. Question about Cathode bias in this Magnavox amp. . .
  36. GK71 B+ turn on delay
  37. Paralleling Triodes in a 6SN7GT
  38. 6C33C-B. PP or SE ?
  39. 6550 Triode B+
  40. Aikido Phono Pre.....any good???
  41. Tube Preamp L&amp;R Channel different current draw
  42. amp is dead!
  43. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  44. Running stereo through a single tube with dual triodes?
  45. Looking for 6AQ5 audio preamp schematic!
  46. Quad KT88 oscillation problem
  47. El86 driving high beta bipolar power tr
  48. Wikipedia article: Tube sound
  49. Installed 12&quot; Speaker in Pro Jr---Now What??
  50. How do I design a pentode constant current source plate load?
  51. Socket for 6AQ5
  52. new 845? Who produces it?
  53. Looking for a 45 SE Schematic
  54. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  55. Tube Amps left outdoors 24/7
  56. The beast OTL
  57. Input transformer: floating input = distortion
  58. Altmann's Split Feedback concept
  59. preamp for a JE LABS 2A3DX amp
  60. Phase flip needed -Interstage Transformer?
  61. Can your amp do this?
  62. AES out of 1625?
  63. Any info on Haltron 6BL8 tubes?
  64. Need Schematic for 12 Volt Tube Buffer
  65. Input impedance for Simple SE?
  66. SR-101 Pioneer Spring Reverb
  67. Basic Transformer Question - how do I know build possibilities?
  68. Source for 2.5VCT 5A filament transformers
  69. Nichicon VR VZ or GU
  70. Missing 6.3V CT/'Cockeyed Bridge' problem
  71. Best plate voltage for 6dj8 at +-6ma
  72. Max supply voltage for small DHT's
  73. Operating Temperature of KT88?
  74. First Tube Amp
  75. earthing advice on a US amp
  76. distortion at low volume
  77. interstage transformer cheating?
  78. PP EL34 or 6L6 circuits?
  79. Rectifier Capacator (voltage adjust)
  80. Passive RIAA and cap variation
  81. 6T9 push pull with Cathode Coupled input
  82. mixed bias
  83. Need help: tube DAC and Phono pre-amp
  84. Feedback equation
  85. Lafayette PA 675 Schematic ?
  86. phono preamp?
  87. Input tube recommendations...
  88. blind test tube preamp free for all
  89. Estimate Miller of Triode Strapped Pentode
  90. Tube Care for Prolonged Life
  91. bias resistor to use for a PP 300B?
  92. 12AY7 preamp schematic
  93. visio shapes
  94. vt25 in pre amp
  95. Wire Wound Pontentiometers - resistors
  96. Sound City B120
  97. Single supply 6922 buffer with 2SK CCS
  98. Aikido and 30W Class AB power buffer?
  99. Simple Pentode driver for a 45 ?
  100. Sennheiser HD 650 Question
  101. ampeg svt 2 pro preamp problem
  102. Edcor specs?
  103. hook up wire
  104. 6X5, 2x 6SL7 &amp; a 6v6GT....
  105. strange tube? E-8128
  106. Value of grid-leak resistor
  107. TubeTech Valves
  108. 1st build done.
  109. Tube socket does not fit tube
  110. 300B SET Bias Help
  111. This Connector for an Amp Umbilical?
  112. Chassis Grounding and rectifiers
  113. TechTube TM Blackburn status
  114. Protection of tubes/amp...
  115. 6sf5
  116. EF86 - Interstage transformer - EL84 PP AB
  117. Schadeode
  118. High-power amplifier using transmitting tubes
  119. Basic testing/meter question
  120. Mains voltage change for Sonic Frontiers SFS80 ?
  121. transformer unused secondary noobie question
  122. Acrosound High Power Williamson - HELP!!!!
  123. 300B Cathode Feedback + Cathode Bias
  124. "Budget" GM70 SET
  125. Chokes next to output transformers?
  126. Adding more power tubes and make a tube amp switching them?
  127. 1. time biasing...
  128. SE solution wanted
  129. tube rectifier
  130. Baldwin amp, yet another amp conversion project
  131. sorry, yet another newbie - what can I make with these???
  132. Design Help (load line) on a SE Mono Block Amp build
  133. Plate Choke SRPP…. What do think?
  134. Looking for a Fisher chassis 51 mono amp
  135. Majestic Transformers
  136. Inverted Mos HV soft start
  137. Strange S5 K-16LS oscilloscope readings
  138. Why don't pentodes require aligned grids?
  139. First design for a tube noob
  140. Newbie and ASL Wave 8 problems
  141. Evil Experiments - Hammond Paper in Oil Caps
  142. Now I know what this Tranny can do
  143. Pinnacle tubes??
  144. First Project.... and Hello
  145. VTL Integrator schematic
  146. Old transformators...
  147. 12AU7/12AT7/12AX7 preamp schmatic needed
  148. Booz preamp
  149. Mystery &quot;The Fisher&quot; console mono amp
  150. Cracks and hiss in tube guitar amp
  151. Voltage Doubler
  152. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  153. Sakuma-San Pilgramage?
  154. Any HP 8903 audio analyzer owners?
  155. xL508/6KW6/17KW6
  156. 6C45 phono input only?
  157. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  158. Switch box using VR glow tubes
  159. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  160. TJ 845 Tubes
  161. Looking for a web tutorial on basic calculations
  162. Berman linestage- do I reference heaters or not?!
  163. calculating gain
  164. Simple EL84 amp...
  165. Tube Direct Box - Got design?
  166. Raphaelite Audio Transformers &amp; Sino Tube Amplifier Kits - What's your experience ?
  167. S-5 Electronics K-16LS & 6V6 Substitution
  168. how to calculate current requirement
  169. Stancor Transformer Data Sheet Needed
  170. 6BL7 replecement
  171. Toroid PT question
  172. New SET Amp
  173. What do you guys think..
  174. Output Stage in MJ Question
  175. Input voltage on an integrated tube amp
  176. 6sf5 = 1/2 12ax7?
  177. Observations of amplifier sound
  178. Sovtek KT88
  179. 24 or 24a as driver in 2 stage..?
  180. Too high transformator voltages...
  181. This power supply ok?
  182. 300B valves
  183. Modulation transformer for a driver transformer?
  184. Is 6V DC too low for heater filament?
  185. mundorff 0.47 silver in oil
  186. need manual for heathkit sp2
  187. Interresting Quiz. Which tube is this?
  188. el84 burn in time ?
  189. Tube Amp Compensation Q
  190. Quad II Advice
  191. Bias problem- 1 Socket shows extremely low bias!
  192. ECC88 vs E88CC
  193. Finally, back to my Simple SE project
  194. can trafo laminations rest on chassis?
  195. Ping Poindexter - 6SN7 Moebius Linestage Question
  196. More information wanted on this Phase Splitter Circuit
  197. Converting tube tester to Mutual Conductance
  198. 6UA4-GTA Question
  199. oscilloscope turned guitar amp?
  200. LED cathode bias - how to pick LED?
  201. preamp question
  202. Hickok tube tester calibration help needed
  203. Watch this !
  204. any Welborne Labs Ultrapath owners ?
  205. McIntosh transformer turns ratio
  206. 12E1 & S11E12 as a KT88 substitution
  207. Dynaco ST-70 Triode Conversion Techniques
  208. Larry Moore power supply
  209. SE to Balanced tube preamp idea
  210. Help on Cascode DN2540 CCS
  211. Kt88 Pp
  212. What was the diy world like before the internet?
  213. Updated my website
  214. Marshall AVT 50 preamp gain/distortion increase
  215. Interstage question in 6ac5G design
  216. Using a powered sub with my tube amp
  217. 807pp suggestions and guidance please
  218. 2 stage IT coupled SE suggestions.?
  219. WE429A similar to 6V6?
  220. 6FQ7 in RH84
  221. Deluxe Reverb Re-Issue High Frequency Noise.
  222. What splitter for this design ?
  223. preamp kit?
  224. PP power supply design questions
  225. Hammond 1650P for KT88 PP - any experience?
  226. Gibson tube amp mod for JAZZ
  227. Cathode Bypass caps - how to choose?
  228. Marantz 9 output power switch
  229. Single ended KT88 question
  230. Anyone Have a Hickok 800A
  231. Please post your experience with 6C45 and 6H30
  232. Series-Shunt Regulator I need
  233. Hammond Gripe
  234. capacitors in series- what value balancing resistors?
  235. Substituting Pentode for Triode
  236. Pentode Driver Calculations
  237. DHT and speed issues
  238. Aikido vibration issue
  239. Modified Salas Mosfet Shunt Reg
  240. What if O.H. Schade had MOSFETs?
  241. Please Look at my circuit
  242. EL34 tube amp that needs work on
  243. question on differential stage
  244. Need help with my ST70, decrease in one channel
  245. Diff drive
  246. Stereo Aikido GND help
  247. Hashimoto HL-20K-6 Line Output Transformers
  248. What is the RIGHT way to calculate the Value of the cathode resistor?
  249. Kt88 Se
  250. ping Tom Schlangen

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