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  1. Music Angel KT88 correct circuit
  2. G1=G2/mu Scaled Drive Strawman Design
  3. Output transformer for 845 SE triode amp
  4. "10 year burn in" T Shirt arrives!!!
  5. Thinking out loud -- VT-33 headphone amp?
  6. Elektor USB magic eye
  7. Maganavox Tubes Made in USA?
  8. Magic Eye VU Meter
  9. More EBAY Madness !!
  10. Major modifications of a Bogen AP-35
  11. Help with circuitmaker Pentode model
  12. Kt-120 ?
  13. Help with 6F5/6L6 rebuild...
  14. What Speaker for Webcor Tube Amp?
  15. Possible use for Pentagrid tubes??
  16. Rogers Cadet III integrated
  17. Quad II - Can 6P3S-E/GU50 be used as KT66 direct replacement?
  18. Using Grid2 screen signal -
  19. 6n6p tube as output tube for small guitar amp
  20. YAAGLI - Yet Another Aikido Ground Loop Issue
  21. Tube rectifier question.
  22. Dac with tube preamp?
  23. 5712 tube data needed
  24. 180 pF capacitor and other questions
  25. Simple question: Stereo to monos. How.
  26. Plate dissipation specs for 21KQ6
  27. Yaqin pre-out for subwoofer?
  28. Grid Chokes and choke load
  29. First tube amp project: GO!
  30. Hybrid Amp
  31. Circuit weirdness?
  32. How suitable is this tranformer for a Tube Amp Project?
  33. Best way to solder gold-plated components?
  34. Phono EQ hiss/white noise!!!
  35. help needed with grounded grid CCS upgrade
  36. Resistor wattage?
  37. SCORE! Kepco Tube Power supplies!
  38. 6SN7-2A3 SE Amp - James Transformers
  39. Capacitor explosion.
  40. JJ ECC81/12AT7 Longevity
  41. 6V6GTA Tubes, H/K A300 Transformers, Now What?
  42. DIY valve radio
  43. U600 rectifier valve datasheet, please !!!
  44. Capacitors
  45. please help ! 5687 cd player buffer
  46. LK-72 mis-wired or am I confused?
  47. Need help with tube ID.
  48. spud amp 6c45pi vs 5842
  49. Air gapping transformers
  50. Voltage Measurement
  51. Cornell-Dubilier Caps Western Electric 91A Amplifier
  52. My take on a modern ST-70
  53. pls suggest a project
  54. Help with input stage driver for EL84 output stage
  55. Trying to make sense of the Sweet Peach
  56. Cornell-Dubilier Paper In Oil Capacitors
  57. lm3886 + cathode follower PS problem
  58. Completely differential amplifier final stage
  59. Capacitors in series for coupling?
  60. Help needed with messed-up-amp repairs.
  61. 6DJ8 tube schematic as balanced line stage?
  62. 6DJ8 (balanced) tube line stage
  63. Knight amp circut voltages
  64. Make Mono Phonograph into Mic Preamp?
  65. Yet another passive attenuator
  66. What tube is this?
  67. El Cheapo ok for a first build?
  68. Anyone in Vancouver with a tube tester?
  69. How long can I expect a tube to last
  70. Output transformers... which one...?
  71. My MA845 modded and questions
  72. Sun Audio SV-2a3 HK Clone
  73. departure and tube slop
  74. Wire construction for capped tube plates
  75. Grid resistor location
  76. Meng Yue X1 trial
  77. Yarland pro845
  78. Faulty 5881 tube ?
  79. MF Xpre - help pls!!
  80. Heaters Voltage
  81. Pleas help identify this McIntosh valve amplifier
  82. Curves for Triode Connected 6EW6
  83. microwave oven transformer..
  84. Marantz 8b tubes
  85. Request: The schematic of Audible illusions MODULUS 3
  86. How many watts are really needed?
  87. Worn Tube Rectifier
  88. Bogen CHB35a Problem
  89. 29KQ6 Datasheet
  90. Help selecting a thermistor
  91. Beard P.101, new-to-me.
  92. Audioromy 838 Amp Broke need help..
  93. Inexpensive Guitar Amp
  94. How to Read faded Tube Numbers
  95. Test data for 6H30PI & Hickok 539??
  96. Tube Text books "Reich"
  97. PCL805 parafeed SE idea + question
  98. 12V driver tubes for Engineer's Amp?
  99. >200W with 6BG6GA
  100. Leak stereo 20 modification
  101. Baby Huey components
  102. Monstrous 1kW amp!
  103. blue glow, how?
  104. Using different transformer taps for each needed B+
  105. Heating DHT Cathodes a new way???
  106. Noise problem in 572-10 PP amplifier
  107. Power transformer question (Bud?? calling Bud)
  108. Identifying 12AX7 Tubes
  109. PAS3 to volume pot
  110. 5F6A Amp build help (Fender Bassman)
  111. Jean Hiraga SE KT88
  112. ASC motor run caps....can they be mounted horizontal???
  113. Millivolt signal and tube sockets
  114. 6N1P Data sheet differences
  115. Confident in buying tubes on ebay ?
  116. CCS Troubles
  117. Mengyue el34b schematic needed
  118. safest way to power up a new build
  119. Phono amp Raytheon 6418 tubes
  120. YL1350 Help characteristic and output tranies
  121. EL84 PP using 5K plate to plate primate OPT
  122. VR tube flashing?
  123. Tabletop 12au7 Amp
  124. Renovated website: www.pmillett.com, www.tubebooks.org
  125. Troubleshooting Eico HF-85
  126. Custom chassis europe
  127. Mixer from pre-amp design
  128. SE Output Tranny - Dumb Question
  129. What Tube for a Differential Amplifier?
  130. Thinking of buying a Lumley Reference ST70 with attached passive pre
  131. Psu
  132. Protection of the Irreplaceable
  133. Trix T621 PA amplifier (British)
  134. Resistor types ??? (carbon or metal film)
  135. First Amp Build
  136. Help ID these little PP output xfrmrs?
  137. Rectifier voltage drop question
  138. dc and ac heater supply in Aikido
  139. Can I obtain a suitable B+ voltage with spare parts?
  140. Multi tap transformers dont use the whole windings?
  141. First layout with spud
  142. EL152, GU50 and EL156
  143. Convert a 110 volt Mcintosh Mc275 to 230volt
  144. transformer maker list
  145. design a preamp, so easy....
  146. SRPP - determining load and balancing
  147. Idea for all C3g phono stage
  148. temp check
  149. Pentode Question
  150. K & K Audio Transformer phase splitter?
  151. Transformer Efficiency
  152. How to test a 6H30 tube
  153. Karaoke Tube Hi-end In The Future
  154. What makes the old McIntosh stuff so good?
  155. Paralell 10M45's for 71A DHT filament?
  156. Rod Coleman CCS/gyrator help
  157. Differential amp.Do they pass 2nd harmonics or reject them?
  158. A half 6sl7 tube
  159. failing tube
  160. Capacitor in series - Resistor across ?
  161. Tube preamp choise...
  162. Some general tube questions from a Tube newbie !!
  163. How unsafe is an Autotransformer?
  164. Can a dual triode use a common cathode resistor?
  165. Dared MC-7P
  166. SRC2496 Miniatube tube output stage
  167. Tubetech smc2b multiband compressor
  168. Tweaking/correction question - Xindak MT-1 balance
  169. HELP! ELNA CERAFINE 500V Caps
  170. Em87/ em84
  171. Pioneer SM-83 restoration
  172. Best GM70 version suited for audio??
  173. PSUDII transformer question
  174. what are these caps doing?
  175. Distortion VS OPT impedence
  176. Heater wiring approaches
  177. Rogers pops, crackle and static are driving me mad!
  178. tube power enough?
  179. Ever notice those scratches on some plates??
  180. JE 45/2A3 SE 2001 edition
  181. Difficult Time Finding Replacement Caps
  182. Mini tube output stage
  183. Mismatched Power Tubes
  184. Eimac 35TG amplifier glows !
  185. ECC88 Shield
  186. One amp channel for mid, the other for tweeter, to SE or to PP, THAT is the Question?
  187. SRRP Output stage. Calculating power output.
  188. bogen chb-35
  189. Rating for resistors in power supply?
  190. Effects of Bias /Ammeters....
  191. pentode mode distortion 6LR8? George?
  192. Info for 6b4g PP
  193. Understanding unregulated PSU
  194. C3m C3g tubes
  195. More ebay craziness
  196. Shunt Capacitor
  197. 6021 Load Line
  198. TubeRiaa - How to calculate the impendance?
  199. Fake Vacuum Tube Amps - Funny but real
  200. 12.6v+ vs 6.3v+/- heater supply
  201. Distortion Measurements
  202. modifying kt88 pp ul amp
  203. Aikido help!
  204. Are Positive Grid Voltage Traces Necessary?
  205. New to Tubes
  206. How to read "Typical Characteristics" curves
  207. 12B4 pre output cap and LF instability
  208. attractive amp kit?
  209. Stereo 7O with transformer phase splitter?
  210. Filter Cap Recommendation
  211. New Guy...With a question...
  212. Interesting wiring guide find, thanks NASA!
  213. marantz 9's OPT data
  214. Why do my amps want signal ground and safety earth connected?
  215. scott 299c
  216. Tube Schematics
  217. JLTi EL34 and KT88 Amplifiers
  218. Radford sta15 looking for a nice preamp...
  219. Really subjective question
  220. Pen-toad Question
  221. Revox Model 40- leave it alone or dig in?
  222. Driver of Sumo Tubes PP for anybody: Shematic and PCB
  223. Output transformer from rowe ammi mm4
  224. Equivalent Circuit?
  225. 300b tube life
  226. CBS tube?
  227. Looking for a 700vdc supply
  228. Are all 9-pin sockets the same?
  229. Problem with short Test
  230. Troubleshooting 12B4/RH84/Akai project
  231. hi-end vacuum tube phono preamplifier
  232. PCB help
  233. QUICK transformer Question HELP
  234. Configuring an AB class amp to work in pure A class
  235. SCott LK-48-B balance pot
  236. lost a tube
  237. Lee Laboratory - model 50 Cruiser
  238. 1/2 of 12AX7 in single envelope?
  239. 2 pairs of 8150's
  240. AX84 Clean Preamp
  241. 8150 Tubes
  242. Capacitor/Choke value in SET buffer supply? (95 vdc B+)
  243. NJ Tube Auction
  244. pentode buffer
  245. Tube Buffer? 12ax7?
  246. What is this tube?
  247. Kits
  248. Power supply high voltage problems with Melos amp.
  249. 811A Class A2 with Power Drive
  250. Help ID this 12AX7/EL84 Console(?) Amp

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