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  1. CCS Kit options
  2. 13e1
  3. Rogers Tube Amp
  4. Pair of McIntosh MC-60 on Dallas Craigslist
  5. Lundahl LL1517. What is it good for?
  6. Edcor OPT Voltage Rating?
  7. Which Tube to Start with?
  8. Basic Transformer hookup wiring
  9. Beta followers, biasing.
  10. 6W 2xEL519 Half-hybrid Class-A OTL
  11. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  12. Wiring / Layout question
  13. Yaqin MC10K
  14. help me lower the gain of this preamp pls
  15. How to wiring the transformer
  16. "universal" P-P driver board
  17. series or parallel?
  18. Question about Cathode bias in this Magnavox amp. . .
  19. GK71 B+ turn on delay
  20. Paralleling Triodes in a 6SN7GT
  21. 6C33C-B. PP or SE ?
  22. 6550 Triode B+
  23. Aikido Phono Pre.....any good???
  24. Tube Preamp L&R Channel different current draw
  25. amp is dead!
  26. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  27. Running stereo through a single tube with dual triodes?
  28. Looking for 6AQ5 audio preamp schematic!
  29. Quad KT88 oscillation problem
  30. El86 driving high beta bipolar power tr
  31. Installed 12" Speaker in Pro Jr---Now What??
  32. How do I design a pentode constant current source plate load?
  33. Socket for 6AQ5
  34. new 845? Who produces it?
  35. Looking for a 45 SE Schematic
  36. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  37. Tube Amps left outdoors 24/7
  38. The beast OTL
  39. Input transformer: floating input = distortion
  40. Altmann's Split Feedback concept
  41. preamp for a JE LABS 2A3DX amp
  42. Phase flip needed -Interstage Transformer?
  43. Can your amp do this?
  44. AES out of 1625?
  45. Any info on Haltron 6BL8 tubes?
  46. Need Schematic for 12 Volt Tube Buffer
  47. SR-101 Pioneer Spring Reverb
  48. Basic Transformer Question - how do I know build possibilities?
  49. Source for 2.5VCT 5A filament transformers
  50. Nichicon VR VZ or GU
  51. Missing 6.3V CT/'Cockeyed Bridge' problem
  52. Best plate voltage for 6dj8 at +-6ma
  53. Max supply voltage for small DHT's
  54. Operating Temperature of KT88?
  55. First Tube Amp
  56. earthing advice on a US amp
  57. distortion at low volume
  58. interstage transformer cheating?
  59. PP EL34 or 6L6 circuits?
  60. Rectifier Capacator (voltage adjust)
  61. Passive RIAA and cap variation
  62. 6T9 push pull with Cathode Coupled input
  63. mixed bias
  64. Need help: tube DAC and Phono pre-amp
  65. Feedback equation
  66. Lafayette PA 675 Schematic ?
  67. phono preamp?
  68. Input tube recommendations...
  69. blind test tube preamp free for all
  70. Estimate Miller of Triode Strapped Pentode
  71. Tube Care for Prolonged Life
  72. bias resistor to use for a PP 300B?
  73. 12AY7 preamp schematic
  74. visio shapes
  75. vt25 in pre amp
  76. Single supply 6922 buffer with 2SK CCS
  77. Aikido and 30W Class AB power buffer?
  78. Simple Pentode driver for a 45 ?
  79. Sennheiser HD 650 Question
  80. Edcor specs?
  81. 6X5, 2x 6SL7 & a 6v6GT....
  82. strange tube? E-8128
  83. Value of grid-leak resistor
  84. TubeTech Valves
  85. 1st build done.
  86. Tube socket does not fit tube
  87. 300B SET Bias Help
  88. This Connector for an Amp Umbilical?
  89. Chassis Grounding and rectifiers
  90. TechTube TM Blackburn status
  91. Protection of tubes/amp...
  92. 6sf5
  93. EF86 - Interstage transformer - EL84 PP AB
  94. Schadeode
  95. High-power amplifier using transmitting tubes
  96. Basic testing/meter question
  97. Mains voltage change for Sonic Frontiers SFS80 ?
  98. transformer unused secondary noobie question
  99. Acrosound High Power Williamson - HELP!!!!
  100. 300B Cathode Feedback + Cathode Bias
  101. "Budget" GM70 SET
  102. Chokes next to output transformers?
  103. Adding more power tubes and make a tube amp switching them?
  104. 1. time biasing...
  105. SE solution wanted
  106. tube rectifier
  107. Baldwin amp, yet another amp conversion project
  108. sorry, yet another newbie - what can I make with these???
  109. Design Help (load line) on a SE Mono Block Amp build
  110. Plate Choke SRPP…. What do think?
  111. Looking for a Fisher chassis 51 mono amp
  112. Majestic Transformers
  113. Inverted Mos HV soft start
  114. Strange S5 K-16LS oscilloscope readings
  115. Why don't pentodes require aligned grids?
  116. First design for a tube noob
  117. Newbie and ASL Wave 8 problems
  118. Now I know what this Tranny can do
  119. Pinnacle tubes??
  120. First Project.... and Hello
  121. VTL Integrator schematic
  122. Old transformators...
  123. 12AU7/12AT7/12AX7 preamp schmatic needed
  124. Booz preamp
  125. Mystery "The Fisher" console mono amp
  126. Voltage Doubler
  127. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  128. Sakuma-San Pilgramage?
  129. xL508/6KW6/17KW6
  130. 6C45 phono input only?
  131. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  132. Switch box using VR glow tubes
  133. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  134. TJ 845 Tubes
  135. Looking for a web tutorial on basic calculations
  136. Berman linestage- do I reference heaters or not?!
  137. calculating gain
  138. Simple EL84 amp...
  139. Raphaelite Audio Transformers & Sino Tube Amplifier Kits - What's your experience ?
  140. S-5 Electronics K-16LS & 6V6 Substitution
  141. how to calculate current requirement
  142. Stancor Transformer Data Sheet Needed
  143. 6BL7 replecement
  144. Toroid PT question
  145. New SET Amp
  146. What do you guys think..
  147. Output Stage in MJ Question
  148. Input voltage on an integrated tube amp
  149. 6sf5 = 1/2 12ax7?
  150. Observations of amplifier sound
  151. Sovtek KT88
  152. 24 or 24a as driver in 2 stage..?
  153. Too high transformator voltages...
  154. This power supply ok?
  155. 300B valves
  156. Modulation transformer for a driver transformer?
  157. Is 6V DC too low for heater filament?
  158. need manual for heathkit sp2
  159. Interresting Quiz. Which tube is this?
  160. el84 burn in time ?
  161. Tube Amp Compensation Q
  162. Quad II Advice
  163. Bias problem- 1 Socket shows extremely low bias!
  164. ECC88 vs E88CC
  165. can trafo laminations rest on chassis?
  166. Ping Poindexter - 6SN7 Moebius Linestage Question
  167. More information wanted on this Phase Splitter Circuit
  168. 6UA4-GTA Question
  169. LED cathode bias - how to pick LED?
  170. preamp question
  171. Watch this !
  172. any Welborne Labs Ultrapath owners ?
  173. McIntosh transformer turns ratio
  174. 12E1 & S11E12 as a KT88 substitution
  175. Dynaco ST-70 Triode Conversion Techniques
  176. Larry Moore power supply
  177. SE to Balanced tube preamp idea
  178. Help on Cascode DN2540 CCS
  179. Kt88 Pp
  180. What was the diy world like before the internet?
  181. Updated my website
  182. Interstage question in 6ac5G design
  183. Using a powered sub with my tube amp
  184. 807pp suggestions and guidance please
  185. 2 stage IT coupled SE suggestions.?
  186. WE429A similar to 6V6?
  187. 6FQ7 in RH84
  188. What splitter for this design ?
  189. preamp kit?
  190. PP power supply design questions
  191. Hammond 1650P for KT88 PP - any experience?
  192. Cathode Bypass caps - how to choose?
  193. Marantz 9 output power switch
  194. Single ended KT88 question
  195. Please post your experience with 6C45 and 6H30
  196. Series-Shunt Regulator I need
  197. Hammond Gripe
  198. capacitors in series- what value balancing resistors?
  199. Substituting Pentode for Triode
  200. Pentode Driver Calculations
  201. DHT and speed issues
  202. Aikido vibration issue
  203. Modified Salas Mosfet Shunt Reg
  204. What if O.H. Schade had MOSFETs?
  205. Please Look at my circuit
  206. EL34 tube amp that needs work on
  207. question on differential stage
  208. Need help with my ST70, decrease in one channel
  209. Diff drive
  210. Stereo Aikido GND help
  211. Hashimoto HL-20K-6 Line Output Transformers
  212. What is the RIGHT way to calculate the Value of the cathode resistor?
  213. Kt88 Se
  214. ping Tom Schlangen
  215. Found An Old Transformer, Now What???
  216. Brook 22A restoration, HELP!!
  217. Optimal operating point for 7N7/6SN7?
  218. Loudness Control Calc - Help Please
  219. Kofi Annan in: "Cascodin' with Steve Bench's RIAA!"
  220. New 300B PP amp completed, phase shift questions
  221. One more PSU2 question
  222. 5U4 Darling power TX advice needed
  223. how to optimize this pentode PP (PP1 clone with S11E12)
  224. Can I change the input to a 6SL7?
  225. Outputtransformer to IGA 6550C ULPP
  226. Question on use PSUD2 software
  227. Please add to my confusion re stepup transformers
  228. filament power supply question
  229. Major Hum Problem
  230. FARMER LAMP amp
  231. Valve amp "master class"
  232. Toroid power transformers - are they a good idea?
  233. EL84 SE amplifier
  234. Gain Problems
  235. My SE KT-88 Build thread
  236. Rolling da(rling's) 6j4wa
  237. Phono pre amp
  238. Michealson Audio Da Vinci Preamp
  239. Acrosound PP 6550: Any Advice?
  240. PS idea: isolating transformer from load
  241. K-16LS Help Please
  242. 6N6P-I life-time
  243. Filament Xformer woes...
  244. The Use of 1:1 Input Transformers in Linestages
  245. 12hg7 vs 12hn7a
  246. Anyone familiar with VAC PA 90C1?
  247. voltage reg make heat sink live. Bad idea?
  248. Audio Innovations series 800 reactivation + some mods
  249. Using 2 rectifiers off 1 power supply
  250. Tube power supply

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