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  1. YL1350 Help characteristic and output tranies
  2. EL84 PP using 5K plate to plate primate OPT
  3. VR tube flashing?
  4. Tabletop 12au7 Amp
  5. Renovated website: www.pmillett.com, www.tubebooks.org
  6. Troubleshooting Eico HF-85
  7. Custom chassis europe
  8. Mixer from pre-amp design
  9. SE Output Tranny - Dumb Question
  10. What Tube for a Differential Amplifier?
  11. Thinking of buying a Lumley Reference ST70 with attached passive pre
  12. Psu
  13. Protection of the Irreplaceable
  14. Trix T621 PA amplifier (British)
  15. First Amp Build
  16. Help ID these little PP output xfrmrs?
  17. Rectifier voltage drop question
  18. dc and ac heater supply in Aikido
  19. Can I obtain a suitable B+ voltage with spare parts?
  20. Multi tap transformers dont use the whole windings?
  21. First layout with spud
  22. EL152, GU50 and EL156
  23. Convert a 110 volt Mcintosh Mc275 to 230volt
  24. transformer maker list
  25. design a preamp, so easy....
  26. SRPP - determining load and balancing
  27. Idea for all C3g phono stage
  28. temp check
  29. Pentode Question
  30. K & K Audio Transformer phase splitter?
  31. Transformer Efficiency
  32. How to test a 6H30 tube
  33. Karaoke Tube Hi-end In The Future
  34. What makes the old McIntosh stuff so good?
  35. Paralell 10M45's for 71A DHT filament?
  36. Rod Coleman CCS/gyrator help
  37. Differential amp.Do they pass 2nd harmonics or reject them?
  38. A half 6sl7 tube
  39. failing tube
  40. Capacitor in series - Resistor across ?
  41. Tube preamp choise...
  42. Some general tube questions from a Tube newbie !!
  43. How unsafe is an Autotransformer?
  44. Can a dual triode use a common cathode resistor?
  45. Dared MC-7P
  46. SRC2496 Miniatube tube output stage
  47. Tubetech smc2b multiband compressor
  48. Tweaking/correction question - Xindak MT-1 balance
  49. Em87/ em84
  50. Pioneer SM-83 restoration
  51. Best GM70 version suited for audio??
  52. PSUDII transformer question
  53. what are these caps doing?
  54. Distortion VS OPT impedence
  55. Heater wiring approaches
  56. Rogers pops, crackle and static are driving me mad!
  57. tube power enough?
  58. Ever notice those scratches on some plates??
  59. JE 45/2A3 SE 2001 edition
  60. Mini tube output stage
  61. Mismatched Power Tubes
  62. Eimac 35TG amplifier glows !
  63. ECC88 Shield
  64. One amp channel for mid, the other for tweeter, to SE or to PP, THAT is the Question?
  65. SRRP Output stage. Calculating power output.
  66. bogen chb-35
  67. Rating for resistors in power supply?
  68. Effects of Bias /Ammeters....
  69. pentode mode distortion 6LR8? George?
  70. Info for 6b4g PP
  71. Understanding unregulated PSU
  72. C3m C3g tubes
  73. More ebay craziness
  74. Shunt Capacitor
  75. 6021 Load Line
  76. TubeRiaa - How to calculate the impendance?
  77. Fake Vacuum Tube Amps - Funny but real
  78. 12.6v+ vs 6.3v+/- heater supply
  79. Distortion Measurements
  80. modifying kt88 pp ul amp
  81. Aikido help!
  82. Are Positive Grid Voltage Traces Necessary?
  83. New to Tubes
  84. How to read "Typical Characteristics" curves
  85. 12B4 pre output cap and LF instability
  86. attractive amp kit?
  87. Stereo 7O with transformer phase splitter?
  88. Filter Cap Recommendation
  89. New Guy...With a question...
  90. Interesting wiring guide find, thanks NASA!
  91. marantz 9's OPT data
  92. Why do my amps want signal ground and safety earth connected?
  93. scott 299c
  94. Tube Schematics
  95. JLTi EL34 and KT88 Amplifiers
  96. Radford sta15 looking for a nice preamp...
  97. Really subjective question
  98. Pen-toad Question
  99. Revox Model 40- leave it alone or dig in?
  100. Driver of Sumo Tubes PP for anybody: Shematic and PCB
  101. Output transformer from rowe ammi mm4
  102. Equivalent Circuit?
  103. 300b tube life
  104. CBS tube?
  105. Looking for a 700vdc supply
  106. Are all 9-pin sockets the same?
  107. Problem with short Test
  108. Troubleshooting 12B4/RH84/Akai project
  109. hi-end vacuum tube phono preamplifier
  110. PCB help
  111. QUICK transformer Question HELP
  112. Configuring an AB class amp to work in pure A class
  113. SCott LK-48-B balance pot
  114. lost a tube
  115. Lee Laboratory - model 50 Cruiser
  116. 1/2 of 12AX7 in single envelope?
  117. 2 pairs of 8150's
  118. 8150 Tubes
  119. Capacitor/Choke value in SET buffer supply? (95 vdc B+)
  120. NJ Tube Auction
  121. pentode buffer
  122. Tube Buffer? 12ax7?
  123. What is this tube?
  124. Kits
  125. Power supply high voltage problems with Melos amp.
  126. 811A Class A2 with Power Drive
  127. Help ID this 12AX7/EL84 Console(?) Amp
  128. Eico HF-86
  129. Marantz 9 Filter CHOKE value??
  130. 10M45s: strange behaviour @ 100mA
  131. LtSpice - Russian tube models
  132. Before I buy KT88's
  133. Ultra Low Cost 6P1P Push Pull Schematic,PCB
  134. 300B SE amp: One more one
  135. Already found problem with new amp
  136. LtSpice transformer - confusion
  137. OPUS 5.0 A Modern Mullard
  138. EL34 PP New Design of newbie
  139. Tubelabs SE vs. Simple SE ??
  140. Somebody knows about Lorenz e84l?(real Lorenz)
  141. Aikido Heater PSU help
  142. ecc99 with which Interstage Transformer?
  143. Looking for Audio Research Caps
  144. 2A3 SE Problem
  145. One knob tone control
  146. Tube Base Application ?
  147. The no-brainer project, some questions
  148. schematic request Yarland FV34AIII
  149. SY/Pete Millett Crossover
  150. Please don't stone me. . . .
  151. Golden Tube
  152. BH Curve & OPT choices
  153. Scott Transformers
  154. Identifying transformers
  155. Need Help understanding a triode fed LTP.
  156. How to measure and adjust bias
  157. Another cheap tube amp from China
  158. where to add master volume/gain/tone to Bogen L330?
  159. Another Williamson
  160. Weird EL84 PP behavior
  161. 300B SE Design
  162. Tube/Valve Shop in BERLIN
  163. Aikido buffer/gain selector?
  164. Gaijin friendly audio shop in Tokyo area?
  165. Troubleshooting channel dropout
  166. "groundbus" is this right?
  167. About New Production Tubes
  168. suche JJ E88CC oder 6922 Sovtek in Berlin
  169. 8ohm output transformer with a 4ohm load
  170. Power transformer - good for anything?
  171. Beginner question, swap .047uf for .05uf?
  172. Tetra phono stage
  173. Japanese OPTs
  174. Changing secondary voltage (Uncivilized way)
  175. 4EH7 opinions anyone?
  176. Silvertone 45A tubes....rare variant
  177. single 12AT7 in a tubelab simple se
  178. Finished the "big one"!
  179. CV428 or 5B254M useful?
  180. How about making your own tubes?!
  181. entry level int-amp?
  182. What Cap Is This?
  183. help please with kt-88 ultralinear o/p transformer
  184. A flea thingy that sounds good
  185. Mullard vs. Williamson 60W UL PP amp. Which one?
  186. Need help with PSUD II model
  187. 5v to 2.5v for 2a3 filament
  188. Does 2A3 require a grid stopper?
  189. Hammond ECL86/6GW8 conversion
  190. Connecting two opt's to act as one.
  191. Usefullness of tubes
  192. twisted/isolated/shielded wires?
  193. Feedback question
  194. What tubes for a tube amp?
  195. SE-OPTs
  196. Phase splitting using directly heated tubes?
  197. Change EL84 from Triode to Ultra linear
  198. DC hybrid folded-cascode for Schade
  199. New UK Manufacturer of Valves
  200. Can any here explain the JHS designation?
  201. Too good to be true???
  202. Judging a tube's condition
  203. EF86 tube preamp
  204. 6EM7 SET Headamp
  205. Are these ALL really EL34 subs?
  206. parallel tubes
  207. Changing the frequency of AC from mains to lower, out of audible range???
  208. Se 6550
  209. New Suppo Audio EL34 amp
  210. 60Watt+ valve design wanted
  211. Interesting tube on e-bay for trans atlantic cable
  212. Need help solving problem on new 2A3 build
  213. Tube and Passive Preamps-Auto Transformers for Attenuators/Volume Control - Overview
  214. Where bay M6 lamination (M4,M2) metal for transformer
  215. dynamic pentode screen draw
  216. Tube Sockets
  217. Circuit Ideas for the 815 (martian tube)
  218. Old Tektronix unit, usefull?
  219. my transformer output has a center tap: what do I do with this?
  220. 6AV5GA amp?
  221. Phase splitter idea
  222. Lowering noise in small signal pentodes?
  223. Articles from the past
  224. Help for LTP/CCS plus cathode follower
  225. Conrad Johnson PV-5, my next project, some simple questions
  226. ALTEC 1566a (DiY...if)
  227. Friday Night Fun with a ST-70
  228. Aikido All-In-One Octal Heater Troubles
  229. transimpedance amplifier
  230. Jaehong Lee OTL
  231. What tube bases to support for a new tube curve tracer
  232. 6GE5 in driver service for class B P-P
  233. Replace Electrolytics?
  234. Can OT's couple?
  235. before i drill Simple SE Chassis Seperation of input and output
  236. gates m-3638 preamp
  237. Oversized caps (PS and coupling) in RH84: Problem?
  238. What makes a great concertina triode?
  239. Luxman SQ5A
  240. Spice model with grid current 12ax7
  241. converting a magnavox pp 6v6 in triode mode
  242. 6V6 filaments in series
  243. my loud valve preamp
  244. Tranformer for Chinese pre amp (6N11) ?
  245. 1 watt desk speaker
  246. PE06/40 replacement
  247. Salvaged console tube reciever
  248. EF86 swap for 6BQ5 reverb?
  249. Yaqin CD3 Impressions and Internals
  250. svetlana 6D22S heater issues/question

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