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  1. Help with Decware SE84 Kit!
  2. Hybrid Amplifier in Small cases
  3. audio mixer with tubes?
  4. Help with KT88 biasing
  5. Bad Schottky??
  6. Aikido Diagnostic
  7. Could this become a Baby Huey killer ?
  8. SV83 vs EL84
  9. KT88 PP-5 Monoblock Amplifier
  10. RE604 SET amp
  11. Dropping rectifier filament voltage
  12. need suggestion about MC pre-pre
  13. New gain stage .. Opinions???
  14. Using SS to augment < 100Hz?
  15. A help with an soviet transformer.
  16. I thought that I had seen everything
  17. Triatic PP-amp with 6p14p
  18. Single 6N6P stereo pre-amp
  19. Tubelab SE input tube filament
  20. high frequency oscillation and decoupling question
  21. Long tailed pair schematic questions
  22. CCS Kit options
  23. Variac Question for Thatch_Ear
  24. 13e1
  25. Rogers Tube Amp
  26. Pair of McIntosh MC-60 on Dallas Craigslist
  27. Lundahl LL1517. What is it good for?
  28. Edcor OPT Voltage Rating?
  29. Which Tube to Start with?
  30. Basic Transformer hookup wiring
  31. Beta followers, biasing.
  32. 6W 2xEL519 Half-hybrid Class-A OTL
  33. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  34. Wiring / Layout question
  35. Yaqin MC10K
  36. help me lower the gain of this preamp pls
  37. How to wiring the transformer
  38. "universal" P-P driver board
  39. series or parallel?
  40. Question about Cathode bias in this Magnavox amp. . .
  41. GK71 B+ turn on delay
  42. Paralleling Triodes in a 6SN7GT
  43. 6C33C-B. PP or SE ?
  44. 6550 Triode B+
  45. Aikido Phono Pre.....any good???
  46. Tube Preamp L&amp;R Channel different current draw
  47. amp is dead!
  48. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  49. Running stereo through a single tube with dual triodes?
  50. Looking for 6AQ5 audio preamp schematic!
  51. Quad KT88 oscillation problem
  52. El86 driving high beta bipolar power tr
  53. Installed 12&quot; Speaker in Pro Jr---Now What??
  54. How do I design a pentode constant current source plate load?
  55. Socket for 6AQ5
  56. new 845? Who produces it?
  57. Looking for a 45 SE Schematic
  58. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  59. Tube Amps left outdoors 24/7
  60. The beast OTL
  61. Input transformer: floating input = distortion
  62. Altmann's Split Feedback concept
  63. preamp for a JE LABS 2A3DX amp
  64. Phase flip needed -Interstage Transformer?
  65. Can your amp do this?
  66. AES out of 1625?
  67. Any info on Haltron 6BL8 tubes?
  68. Need Schematic for 12 Volt Tube Buffer
  69. Input impedance for Simple SE?
  70. SR-101 Pioneer Spring Reverb
  71. Basic Transformer Question - how do I know build possibilities?
  72. Source for 2.5VCT 5A filament transformers
  73. Nichicon VR VZ or GU
  74. Missing 6.3V CT/'Cockeyed Bridge' problem
  75. Best plate voltage for 6dj8 at +-6ma
  76. Max supply voltage for small DHT's
  77. Operating Temperature of KT88?
  78. First Tube Amp
  79. earthing advice on a US amp
  80. distortion at low volume
  81. interstage transformer cheating?
  82. PP EL34 or 6L6 circuits?
  83. Rectifier Capacator (voltage adjust)
  84. Passive RIAA and cap variation
  85. 6T9 push pull with Cathode Coupled input
  86. mixed bias
  87. Need help: tube DAC and Phono pre-amp
  88. Feedback equation
  89. Lafayette PA 675 Schematic ?
  90. phono preamp?
  91. Input tube recommendations...
  92. blind test tube preamp free for all
  93. Estimate Miller of Triode Strapped Pentode
  94. Tube Care for Prolonged Life
  95. bias resistor to use for a PP 300B?
  96. 12AY7 preamp schematic
  97. visio shapes
  98. vt25 in pre amp
  99. Wire Wound Pontentiometers - resistors
  100. Sound City B120
  101. Single supply 6922 buffer with 2SK CCS
  102. Aikido and 30W Class AB power buffer?
  103. Simple Pentode driver for a 45 ?
  104. Sennheiser HD 650 Question
  105. Edcor specs?
  106. hook up wire
  107. 6X5, 2x 6SL7 &amp; a 6v6GT....
  108. strange tube? E-8128
  109. Value of grid-leak resistor
  110. TubeTech Valves
  111. 1st build done.
  112. Tube socket does not fit tube
  113. 300B SET Bias Help
  114. This Connector for an Amp Umbilical?
  115. Chassis Grounding and rectifiers
  116. TechTube TM Blackburn status
  117. Protection of tubes/amp...
  118. 6sf5
  119. EF86 - Interstage transformer - EL84 PP AB
  120. Schadeode
  121. High-power amplifier using transmitting tubes
  122. Basic testing/meter question
  123. Mains voltage change for Sonic Frontiers SFS80 ?
  124. transformer unused secondary noobie question
  125. Acrosound High Power Williamson - HELP!!!!
  126. 300B Cathode Feedback + Cathode Bias
  127. "Budget" GM70 SET
  128. Chokes next to output transformers?
  129. Adding more power tubes and make a tube amp switching them?
  130. 1. time biasing...
  131. SE solution wanted
  132. tube rectifier
  133. Baldwin amp, yet another amp conversion project
  134. sorry, yet another newbie - what can I make with these???
  135. Design Help (load line) on a SE Mono Block Amp build
  136. Plate Choke SRPP…. What do think?
  137. Looking for a Fisher chassis 51 mono amp
  138. Majestic Transformers
  139. Inverted Mos HV soft start
  140. Strange S5 K-16LS oscilloscope readings
  141. Why don't pentodes require aligned grids?
  142. First design for a tube noob
  143. Newbie and ASL Wave 8 problems
  144. Now I know what this Tranny can do
  145. Pinnacle tubes??
  146. First Project.... and Hello
  147. VTL Integrator schematic
  148. Old transformators...
  149. 12AU7/12AT7/12AX7 preamp schmatic needed
  150. Booz preamp
  151. Mystery &quot;The Fisher&quot; console mono amp
  152. Voltage Doubler
  153. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  154. Sakuma-San Pilgramage?
  155. Any HP 8903 audio analyzer owners?
  156. xL508/6KW6/17KW6
  157. 6C45 phono input only?
  158. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  159. Switch box using VR glow tubes
  160. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  161. TJ 845 Tubes
  162. Looking for a web tutorial on basic calculations
  163. Berman linestage- do I reference heaters or not?!
  164. calculating gain
  165. Simple EL84 amp...
  166. Tube Direct Box - Got design?
  167. Raphaelite Audio Transformers &amp; Sino Tube Amplifier Kits - What's your experience ?
  168. S-5 Electronics K-16LS & 6V6 Substitution
  169. how to calculate current requirement
  170. Stancor Transformer Data Sheet Needed
  171. 6BL7 replecement
  172. Toroid PT question
  173. New SET Amp
  174. What do you guys think..
  175. Output Stage in MJ Question
  176. Input voltage on an integrated tube amp
  177. 6sf5 = 1/2 12ax7?
  178. Observations of amplifier sound
  179. Sovtek KT88
  180. 24 or 24a as driver in 2 stage..?
  181. Too high transformator voltages...
  182. This power supply ok?
  183. 300B valves
  184. Modulation transformer for a driver transformer?
  185. Is 6V DC too low for heater filament?
  186. mundorff 0.47 silver in oil
  187. need manual for heathkit sp2
  188. Interresting Quiz. Which tube is this?
  189. el84 burn in time ?
  190. Tube Amp Compensation Q
  191. Quad II Advice
  192. Bias problem- 1 Socket shows extremely low bias!
  193. ECC88 vs E88CC
  194. Finally, back to my Simple SE project
  195. can trafo laminations rest on chassis?
  196. Ping Poindexter - 6SN7 Moebius Linestage Question
  197. More information wanted on this Phase Splitter Circuit
  198. Converting tube tester to Mutual Conductance
  199. 6UA4-GTA Question
  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. Interstage question in 6ac5G design
  215. Using a powered sub with my tube amp
  216. 807pp suggestions and guidance please
  217. 2 stage IT coupled SE suggestions.?
  218. WE429A similar to 6V6?
  219. 6FQ7 in RH84
  220. What splitter for this design ?
  221. preamp kit?
  222. PP power supply design questions
  223. Hammond 1650P for KT88 PP - any experience?
  224. Cathode Bypass caps - how to choose?
  225. Marantz 9 output power switch
  226. Single ended KT88 question
  227. Anyone Have a Hickok 800A
  228. Please post your experience with 6C45 and 6H30
  229. Series-Shunt Regulator I need
  230. Hammond Gripe
  231. capacitors in series- what value balancing resistors?
  232. Substituting Pentode for Triode
  233. Pentode Driver Calculations
  234. DHT and speed issues
  235. Aikido vibration issue
  236. Modified Salas Mosfet Shunt Reg
  237. What if O.H. Schade had MOSFETs?
  238. Please Look at my circuit
  239. EL34 tube amp that needs work on
  240. question on differential stage
  241. Need help with my ST70, decrease in one channel
  242. Diff drive
  243. Stereo Aikido GND help
  244. Hashimoto HL-20K-6 Line Output Transformers
  245. What is the RIGHT way to calculate the Value of the cathode resistor?
  246. Kt88 Se
  247. ping Tom Schlangen
  248. Found An Old Transformer, Now What???
  249. Brook 22A restoration, HELP!!
  250. Optimal operating point for 7N7/6SN7?

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