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  1. Magnetwire gauge size converted to metric
  2. ccs what is the best way
  3. parafeed test/measurement setup question.
  4. how do balance pots work?
  5. Issue with parafeed in SPICE
  6. GU-50 Dissected
  7. Need help on ground wiring for Scott 222-B
  8. Heathkit A9-C Mod
  9. Need a 240v, 5vac - 6-10A rectifier transformer
  10. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  11. 6AS7 SET amp discussion from Photo Gallery
  12. DHT 100hz hum
  13. HP 8903B and Pete Millett's Software Problem ?
  14. How to identify an ARC D70 version ?
  15. Valve amp first build - questions
  16. Transfrmer Impedance Question
  17. Disappointing results from RH84
  18. Anyone Loose a Counterpoint SA-5000?
  19. Installing a 610 in to a B&K 500
  20. My first tube preamp (4S)....
  21. Recycling old iron with stiff wires.
  22. 6EM7 as driver... help !!!
  23. changing R1 value in SE amp
  24. Heater CCS makes for low voltage
  25. DHT & Indirect on same line?
  26. Which tube preamplifier kit for LM3886 amplifier?
  27. budgie pre-amp
  28. ecl82 class A pp, need schematic
  29. Input low pass preferred method
  30. cary SLP50A
  31. se output options for single/balanced tda1541
  32. FM noise in Fisher 90-T in FM mode
  33. ST Triodes?
  34. TUBECAD SE.
  35. RH84 build with SS recto and voltage doubler (any input?)
  36. Tube identification
  37. Brand new cap overheating - argh
  38. High Power Valves
  39. Tubelab SSE B+ and cathode resistor questions
  40. HIFI world 6080 se
  41. EF86 triode question
  42. Connecting a Headphone Jack to a Preamp
  43. PSE 300B "French connexion"
  44. Making a custom tube characteristic graph
  45. 300B DRD power supply
  46. Insanely High Common Mode Voltage Shunt Measurement
  47. Heathkit AA-151 troubles
  48. Tube Power supply question...
  49. Noob question on power transformer primary input voltage
  50. Dynaco ST35 testing for a blown power transformer
  51. 6n6p tube buffer
  52. Welborne Labs
  53. GU-50 triode
  54. Help track down noise in gyrator
  55. Earphone Amp Improvements
  56. Protecting Wire
  57. 45 SET : tubelab vs get*set*go vs ?
  58. 6SL7 in Maggy 175 amp...
  59. Heater soft start for series-connected preamp valves
  60. low/no gain follower
  61. Data for 6BD2A or 6BD2
  62. isolation test
  63. Western Electric 437A preamp
  64. solid-state rectrification
  65. Class AB
  66. push-pull
  67. Need help ID tango-lookalike transformers
  68. TV Valves blast from the past..
  69. Tubes suggestions for parafeed headphones amp ?
  70. CCS Loadline
  71. Universal power supply for ECC85 EL84
  72. Conversion Project
  73. Dynaco PAS I/O PCB Grounding
  74. CCS for anode load
  75. OTL Power Supply: Halfwave vs Virtual Ground
  76. Can NOS tubes have emission staining on the glass?
  77. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  78. Capacitor Drain for Tube Bench Power Supply ?
  79. Diodes, diodes, diodes...
  80. Grid leak resistors and dc-coupling
  81. Output transformer at speaker?
  82. Newbie just wondering if this PP amp looks ok
  83. 6P36S push pull HiFi amp
  84. Another Output Transformer Wiring Question
  85. Cathode bias for EL84 PPP
  86. Output Transformer Wiring Question
  87. NJ7P Tube Database
  88. solving my old radiogram sound issues - help
  89. 6H9c Idle Current.
  90. 12E1 SE amp suggestions.
  91. Direct Coupled Output Stage, DC Bias Balance
  92. Pre-amp tube suggestions for 2A3 output tube
  93. AirTight ATM-1 Schematic
  94. Counterpoint SA 5000 Service manual and PSU
  95. Rectifier tube ? - Berman 76 preamp
  96. Cathode feedback (SE amp)
  97. Will anybody interest in stamp size ccs module?
  98. Fairchild voltage questions
  99. Help with a Sylvania 7695 Project
  100. Flicker Noise dominates triode noise in audio (AES)
  101. A tube for SE with 1k-1k5 load
  102. scott stereomaster 233 restoration
  103. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  104. What to do with C3g tubes
  105. Can anyone ID an output transformer's part number?
  106. Nestorovic NA-1 & Alpha-1 Schematics
  107. Data for 6BD2
  108. Ken Shindo R.I.P
  109. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  110. Seas Trym with SE KT88 amplifier?
  111. 845-Amp-IT-Coupled
  112. Data for 6RA3
  113. Miniwatt N3 not turning on!
  114. I need ideas on a can capacitor
  115. Help with tube for power supply...
  116. AVC vs TVC for 10y line preamp
  117. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  118. help on 845 amp
  119. High voltage power tube question
  120. Tribute OPT for PSE 300B
  121. Floating Paraphase.
  122. 6Q7G as driver in RH807
  123. Custom tubes4hifi m-125 monoblocks
  124. Antique Audio Preamlifier made in USA
  125. directly heated tube rectifiers
  126. Biasing a 12EA6 low voltage pentode
  127. Power supply doubt
  128. Vinyl Savor's Octal 6GL7 preamp?
  129. 837 tube
  130. Tone control bypass (Kontakt KT-7)
  131. drdwers
  132. Amplifier Sensitivity?
  133. identify nickel laminations
  134. Recapping Vintage EL84 amp
  135. Luxman Active 3-way Tube Crossover
  136. opinion on dynaco mark VI
  137. How can i have 450 Volts ?
  138. Balanced Preamp
  139. ecc99-300b
  140. Question about the tube specs/testing?
  141. Transformer Winding Configuration, Hafler 2,815,402
  142. PSU with SS Choke for Loftin-White 2a3.
  143. HP 8903 Pete Millet's Software on Window 8 ?
  144. Cathode Destruction
  145. More radio shack dissapointment
  146. What to do with transformer secondary when used as a choke?
  147. Slight transformer buzzing in Engineers Amp
  148. Couple Gyrator Questions
  149. Shishido/Loftin-White 2A3/45 Extasy..
  150. When is a tube not a Valve?
  151. Relay Recommendataion
  152. 6080 SE triode amplifier
  153. Tetra Sans PS Phono Stage Power Supply
  154. transformer test
  155. New OTL headphone project with EC88 and 6080
  156. Philips Tube Code
  157. Edcor GXPP vs. CXPP
  158. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  159. affordable potted power transformer?
  160. Am I pushing the envelope too far? Layout concerns.
  161. Pete Millet's Uniamp
  162. 6211 for???
  163. Picking an output transformer: power vs. sound quality
  164. Tube emulation with transistors
  165. Altec 1570b Tube Swap
  166. Popping stepped attenuator
  167. 6922 driver/cathodyne - direct coupled
  168. Solid state rectifier with these tubes
  169. Need advice -- Improving an old tube amp
  170. KT88 SE developed a buzz
  171. Guidance on amp design
  172. OTL3 Autograph Series
  173. DAC Tube i/v help!
  174. Need help figuring out a tube amp!
  175. Parallel 12AT7 output stage design?
  176. 6SN7 SRPP
  177. Problem Bi-Amping
  178. Amplifier recommendation
  179. DIY tube amplifier got no sound but all tubes are fired up.
  180. Circuit for Melos 333
  181. DHT Tube regulated power supply
  182. Akai M8 Restoration, newbie questions
  183. Bench Power Supply - what to get?
  184. Telefunken RS241 Design Help
  185. Telefunken Hymnus 5328 MX console
  186. Some Dummy DHT Questions
  187. Inductance loading tube stage questions
  188. Simple tube kit for tube sound ?
  189. Voltage Divider with Capacitor Across Resistor to Ground
  190. FM Demodulator for Tube receivers
  191. The best amp to DIY?
  192. SE Tubelab / EL34b tubes / Transformers
  193. Heath Kit Pre Amp
  194. Preamp hiss noise
  195. Tube preamp?
  196. 417a load line
  197. 6N1 + 6P3P build, need some help.
  198. Caps connected in series in Audio Note kit 4
  199. Ground loop cure?
  200. Dynaco ST-70 Clone
  201. Op Amp Phase Splitter
  202. Idea for ECC85 or EM84?
  203. Why no sound?
  204. single ended tube amp sounds itself
  205. Proper Pentode Usage 717A (713A)
  206. Help with Mullard 5 20 project
  207. Help on Negative Feedback in KT66 PP
  208. Trying to understand 6BM8 regulator (audio note clone)
  209. 6AS7 headphone amp with Sophia Electric Mesh plate 274B rec. tube
  210. CR Kalypso Amp with output stage problem- Please help!
  211. "PEAK INPUT SIGNAL GRID-TO-GRID" question.
  212. EZ81 Load
  213. Rectifier question
  214. 6sn7-300b
  215. Balanced tube phono stage
  216. Your favorite 12B4A for a preamp ?
  217. Voltage rating for output coupling caps in 6J1 tube buffer?
  218. Single stage 845 amp
  219. Eagle tube library
  220. Using Choke in Choke Input Power Supply ?
  221. 6550 wrong high bias...
  222. Floating Bridged CCS Loaded P-P Tube Amp
  223. What to do with a problem Counterpoint SA-12
  224. 6Z9P Mu Stage max anode-cathode voltage
  225. Audio Innovations Series 500 parts
  226. Hagerman Trumpet phonostage
  227. PS design...success or failure?
  228. Kuba Serenade Stereo Console - Part III - Replacing all caps
  229. schematic of Knight KP-70 preamp or anyone having this amp?
  230. 6N6P Cathode Follower design value
  231. Radiotron 32W PP amp from RDH3
  232. Heater filament questions
  233. 46 in ultralinear mode
  234. help needed need transformer prim 230/110 sec 300v appr. 20ma +6,3v or 12,6v
  235. Output transformer confusion
  236. need amp schematic help
  237. lm317 and heater supply.
  238. BJT Voltage Bootstrap - SLCF
  239. Ideas for a cheap 200mA tube rectified PSU
  240. Need help with tube rectifier
  241. Tube or Circuit Noise?
  242. JE Labs (Angela instr.) : your favorite 2A3 schematic ?
  243. Crack the Code Amp build 1000 Watt Tube Amplifier
  244. 12E1 in fixed bias - too much current!
  245. CD-DVD player vs Notebook-usb soundcard sensitivity issue
  246. photo of Knight KP-70 preamplifier for missing component
  247. heater wear sign?
  248. Musical Fidelty X-10D Clone
  249. 815 amp
  250. Jorgen Schou 31,5 OT connection

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