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  1. Rogers Tube Amp
  2. Pair of McIntosh MC-60 on Dallas Craigslist
  3. Lundahl LL1517. What is it good for?
  4. Edcor OPT Voltage Rating?
  5. Which Tube to Start with?
  6. Basic Transformer hookup wiring
  7. Beta followers, biasing.
  8. 6W 2xEL519 Half-hybrid Class-A OTL
  9. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  10. Wiring / Layout question
  11. Yaqin MC10K
  12. help me lower the gain of this preamp pls
  13. How to wiring the transformer
  14. "universal" P-P driver board
  15. series or parallel?
  16. Question about Cathode bias in this Magnavox amp. . .
  17. GK71 B+ turn on delay
  18. Paralleling Triodes in a 6SN7GT
  19. 6C33C-B. PP or SE ?
  20. 6550 Triode B+
  21. Aikido Phono Pre.....any good???
  22. Tube Preamp L&R Channel different current draw
  23. amp is dead!
  24. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  25. Running stereo through a single tube with dual triodes?
  26. Looking for 6AQ5 audio preamp schematic!
  27. Quad KT88 oscillation problem
  28. El86 driving high beta bipolar power tr
  29. Installed 12" Speaker in Pro Jr---Now What??
  30. How do I design a pentode constant current source plate load?
  31. Socket for 6AQ5
  32. new 845? Who produces it?
  33. Looking for a 45 SE Schematic
  34. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  35. Tube Amps left outdoors 24/7
  36. The beast OTL
  37. Input transformer: floating input = distortion
  38. Altmann's Split Feedback concept
  39. preamp for a JE LABS 2A3DX amp
  40. Phase flip needed -Interstage Transformer?
  41. Can your amp do this?
  42. AES out of 1625?
  43. Any info on Haltron 6BL8 tubes?
  44. Need Schematic for 12 Volt Tube Buffer
  45. Input impedance for Simple SE?
  46. SR-101 Pioneer Spring Reverb
  47. Basic Transformer Question - how do I know build possibilities?
  48. Source for 2.5VCT 5A filament transformers
  49. Nichicon VR VZ or GU
  50. Missing 6.3V CT/'Cockeyed Bridge' problem
  51. Best plate voltage for 6dj8 at +-6ma
  52. Max supply voltage for small DHT's
  53. Operating Temperature of KT88?
  54. First Tube Amp
  55. earthing advice on a US amp
  56. distortion at low volume
  57. interstage transformer cheating?
  58. PP EL34 or 6L6 circuits?
  59. Rectifier Capacator (voltage adjust)
  60. Passive RIAA and cap variation
  61. 6T9 push pull with Cathode Coupled input
  62. mixed bias
  63. Need help: tube DAC and Phono pre-amp
  64. Feedback equation
  65. Lafayette PA 675 Schematic ?
  66. phono preamp?
  67. Input tube recommendations...
  68. blind test tube preamp free for all
  69. Estimate Miller of Triode Strapped Pentode
  70. Tube Care for Prolonged Life
  71. bias resistor to use for a PP 300B?
  72. 12AY7 preamp schematic
  73. visio shapes
  74. vt25 in pre amp
  75. Wire Wound Pontentiometers - resistors
  76. Sound City B120
  77. Single supply 6922 buffer with 2SK CCS
  78. Aikido and 30W Class AB power buffer?
  79. Simple Pentode driver for a 45 ?
  80. Sennheiser HD 650 Question
  81. Edcor specs?
  82. hook up wire
  83. 6X5, 2x 6SL7 & a 6v6GT....
  84. strange tube? E-8128
  85. Value of grid-leak resistor
  86. TubeTech Valves
  87. 1st build done.
  88. Tube socket does not fit tube
  89. 300B SET Bias Help
  90. This Connector for an Amp Umbilical?
  91. Chassis Grounding and rectifiers
  92. TechTube TM Blackburn status
  93. Protection of tubes/amp...
  94. 6sf5
  95. EF86 - Interstage transformer - EL84 PP AB
  96. Schadeode
  97. High-power amplifier using transmitting tubes
  98. Basic testing/meter question
  99. Mains voltage change for Sonic Frontiers SFS80 ?
  100. transformer unused secondary noobie question
  101. Acrosound High Power Williamson - HELP!!!!
  102. 300B Cathode Feedback + Cathode Bias
  103. "Budget" GM70 SET
  104. Chokes next to output transformers?
  105. Adding more power tubes and make a tube amp switching them?
  106. 1. time biasing...
  107. SE solution wanted
  108. tube rectifier
  109. Baldwin amp, yet another amp conversion project
  110. sorry, yet another newbie - what can I make with these???
  111. Design Help (load line) on a SE Mono Block Amp build
  112. Plate Choke SRPP…. What do think?
  113. Looking for a Fisher chassis 51 mono amp
  114. Majestic Transformers
  115. Inverted Mos HV soft start
  116. Strange S5 K-16LS oscilloscope readings
  117. Why don't pentodes require aligned grids?
  118. First design for a tube noob
  119. Newbie and ASL Wave 8 problems
  120. Now I know what this Tranny can do
  121. Pinnacle tubes??
  122. First Project.... and Hello
  123. VTL Integrator schematic
  124. Old transformators...
  125. 12AU7/12AT7/12AX7 preamp schmatic needed
  126. Booz preamp
  127. Mystery "The Fisher" console mono amp
  128. Voltage Doubler
  129. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  130. Sakuma-San Pilgramage?
  131. Any HP 8903 audio analyzer owners?
  132. xL508/6KW6/17KW6
  133. 6C45 phono input only?
  134. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  135. Switch box using VR glow tubes
  136. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  137. TJ 845 Tubes
  138. Looking for a web tutorial on basic calculations
  139. Berman linestage- do I reference heaters or not?!
  140. calculating gain
  141. Simple EL84 amp...
  142. Tube Direct Box - Got design?
  143. Raphaelite Audio Transformers & Sino Tube Amplifier Kits - What's your experience ?
  144. S-5 Electronics K-16LS & 6V6 Substitution
  145. how to calculate current requirement
  146. Stancor Transformer Data Sheet Needed
  147. 6BL7 replecement
  148. Toroid PT question
  149. New SET Amp
  150. What do you guys think..
  151. Output Stage in MJ Question
  152. Input voltage on an integrated tube amp
  153. 6sf5 = 1/2 12ax7?
  154. Observations of amplifier sound
  155. Sovtek KT88
  156. 24 or 24a as driver in 2 stage..?
  157. Too high transformator voltages...
  158. This power supply ok?
  159. 300B valves
  160. Modulation transformer for a driver transformer?
  161. Is 6V DC too low for heater filament?
  162. mundorff 0.47 silver in oil
  163. need manual for heathkit sp2
  164. Interresting Quiz. Which tube is this?
  165. el84 burn in time ?
  166. Tube Amp Compensation Q
  167. Quad II Advice
  168. Bias problem- 1 Socket shows extremely low bias!
  169. ECC88 vs E88CC
  170. Finally, back to my Simple SE project
  171. can trafo laminations rest on chassis?
  172. Ping Poindexter - 6SN7 Moebius Linestage Question
  173. More information wanted on this Phase Splitter Circuit
  174. Converting tube tester to Mutual Conductance
  175. 6UA4-GTA Question
  176. LED cathode bias - how to pick LED?
  177. preamp question
  178. Hickok tube tester calibration help needed
  179. Watch this !
  180. any Welborne Labs Ultrapath owners ?
  181. McIntosh transformer turns ratio
  182. 12E1 & S11E12 as a KT88 substitution
  183. Dynaco ST-70 Triode Conversion Techniques
  184. Larry Moore power supply
  185. SE to Balanced tube preamp idea
  186. Help on Cascode DN2540 CCS
  187. Kt88 Pp
  188. What was the diy world like before the internet?
  189. Updated my website
  190. Interstage question in 6ac5G design
  191. Using a powered sub with my tube amp
  192. 807pp suggestions and guidance please
  193. 2 stage IT coupled SE suggestions.?
  194. WE429A similar to 6V6?
  195. 6FQ7 in RH84
  196. What splitter for this design ?
  197. preamp kit?
  198. PP power supply design questions
  199. Hammond 1650P for KT88 PP - any experience?
  200. Cathode Bypass caps - how to choose?
  201. Marantz 9 output power switch
  202. Single ended KT88 question
  203. Anyone Have a Hickok 800A
  204. Please post your experience with 6C45 and 6H30
  205. Series-Shunt Regulator I need
  206. Hammond Gripe
  207. capacitors in series- what value balancing resistors?
  208. Substituting Pentode for Triode
  209. Pentode Driver Calculations
  210. DHT and speed issues
  211. Aikido vibration issue
  212. Modified Salas Mosfet Shunt Reg
  213. What if O.H. Schade had MOSFETs?
  214. Please Look at my circuit
  215. EL34 tube amp that needs work on
  216. question on differential stage
  217. Need help with my ST70, decrease in one channel
  218. Diff drive
  219. Stereo Aikido GND help
  220. Hashimoto HL-20K-6 Line Output Transformers
  221. What is the RIGHT way to calculate the Value of the cathode resistor?
  222. Kt88 Se
  223. ping Tom Schlangen
  224. Found An Old Transformer, Now What???
  225. Brook 22A restoration, HELP!!
  226. Optimal operating point for 7N7/6SN7?
  227. Loudness Control Calc - Help Please
  228. Kofi Annan in: "Cascodin' with Steve Bench's RIAA!"
  229. New 300B PP amp completed, phase shift questions
  230. One more PSU2 question
  231. 5U4 Darling power TX advice needed
  232. how to optimize this pentode PP (PP1 clone with S11E12)
  233. Can I change the input to a 6SL7?
  234. Outputtransformer to IGA 6550C ULPP
  235. Question on use PSUD2 software
  236. Please add to my confusion re stepup transformers
  237. filament power supply question
  238. Major Hum Problem
  239. FARMER LAMP amp
  240. Valve amp "master class"
  241. Toroid power transformers - are they a good idea?
  242. EL84 SE amplifier
  243. Gain Problems
  244. My SE KT-88 Build thread
  245. Rolling da(rling's) 6j4wa
  246. Phono pre amp
  247. Michealson Audio Da Vinci Preamp
  248. Acrosound PP 6550: Any Advice?
  249. PS idea: isolating transformer from load
  250. K-16LS Help Please

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