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  1. pete millet 807 amp
  2. Lost Negative Bias-Fixed Bias
  3. Aikido ('dead quiet') output impedance
  4. Looking for lineamp buffer schematics
  5. Nagra VPA 845
  6. How to match 6C45?
  7. Yet another question about cathode bias (led+pnp)
  8. Ideal System for 1960?
  9. What replaces an IN541 diode?
  10. Bottlehead Eros or Tube4Hifi PH16
  11. Psvane 2a3 T Mk II reliable vender
  12. Odd Wima cap markings
  13. Chinese Amp kit experience
  14. Considerations about headph. OCL
  15. Trying to solve a Plate Follower Problem
  16. Nichicon Caps
  17. Footprint Noval ECC83 Altium
  18. Interference in hybrid amp
  19. wiring DHT filaments with center tapped secondaries
  20. B+ of Curcio Daniel II
  21. Stepped Attenuators Questions
  22. Noisy Ground? (Probably not a loop)
  23. New Production Telefunken
  24. Tube horizontal mounting position
  25. "Ask Jan First" parts website in Germany
  26. EZ215 Stereo 5881 Amp Project
  27. CCS help dn2540 send 340v to the chassis
  28. That's What She Said RH84 Build Log
  29. Help figuring out this output transformer.
  30. 5881 PPP Cathode Bias B+
  31. Measuring DHT filament V with minimal effect.
  32. 100hz hum with Audio Research vs-55
  33. Volume potentiometer
  34. Driver for 2A3C
  35. Regulated B+ sounds worse?
  36. Sylvania console amp rebuild...
  37. E130L Micron
  38. Question Re: Ground Loop Breakers
  39. Source for D3A/7721?
  40. ID a salvaged choke
  41. Magnetwire gauge size converted to metric
  42. ccs what is the best way
  43. parafeed test/measurement setup question.
  44. how do balance pots work?
  45. Issue with parafeed in SPICE
  46. GU-50 Dissected
  47. Need help on ground wiring for Scott 222-B
  48. Heathkit A9-C Mod
  49. Need a 240v, 5vac - 6-10A rectifier transformer
  50. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  51. 6AS7 SET amp discussion from Photo Gallery
  52. DHT 100hz hum
  53. HP 8903B and Pete Millett's Software Problem ?
  54. How to identify an ARC D70 version ?
  55. Valve amp first build - questions
  56. Transfrmer Impedance Question
  57. Disappointing results from RH84
  58. Anyone Loose a Counterpoint SA-5000?
  59. Installing a 610 in to a B&K 500
  60. My first tube preamp (4S)....
  61. Recycling old iron with stiff wires.
  62. 6EM7 as driver... help !!!
  63. changing R1 value in SE amp
  64. Heater CCS makes for low voltage
  65. DHT & Indirect on same line?
  66. Which tube preamplifier kit for LM3886 amplifier?
  67. budgie pre-amp
  68. ecl82 class A pp, need schematic
  69. Input low pass preferred method
  70. cary SLP50A
  71. se output options for single/balanced tda1541
  72. FM noise in Fisher 90-T in FM mode
  73. ST Triodes?
  74. TUBECAD SE.
  75. RH84 build with SS recto and voltage doubler (any input?)
  76. Tube identification
  77. Brand new cap overheating - argh
  78. High Power Valves
  79. Tubelab SSE B+ and cathode resistor questions
  80. HIFI world 6080 se
  81. EF86 triode question
  82. Connecting a Headphone Jack to a Preamp
  83. PSE 300B "French connexion"
  84. Making a custom tube characteristic graph
  85. 300B DRD power supply
  86. Insanely High Common Mode Voltage Shunt Measurement
  87. Heathkit AA-151 troubles
  88. Tube Power supply question...
  89. Noob question on power transformer primary input voltage
  90. Dynaco ST35 testing for a blown power transformer
  91. 6n6p tube buffer
  92. Welborne Labs
  93. GU-50 triode
  94. Help track down noise in gyrator
  95. Earphone Amp Improvements
  96. Protecting Wire
  97. 45 SET : tubelab vs get*set*go vs ?
  98. 6SL7 in Maggy 175 amp...
  99. Heater soft start for series-connected preamp valves
  100. low/no gain follower
  101. Data for 6BD2A or 6BD2
  102. isolation test
  103. Western Electric 437A preamp
  104. solid-state rectrification
  105. Class AB
  106. push-pull
  107. Need help ID tango-lookalike transformers
  108. TV Valves blast from the past..
  109. Tubes suggestions for parafeed headphones amp ?
  110. CCS Loadline
  111. Universal pover supply for ECC85 EL84
  112. Conversion Project
  113. Dynaco PAS I/O PCB Grounding
  114. CCS for anode load
  115. OTL Power Supply: Halfwave vs Virtual Ground
  116. Can NOS tubes have emission staining on the glass?
  117. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  118. Capacitor Drain for Tube Bench Power Supply ?
  119. Diodes, diodes, diodes...
  120. Grid leak resistors and dc-coupling
  121. Output transformer at speaker?
  122. Newbie just wondering if this PP amp looks ok
  123. 6P36S push pull HiFi amp
  124. Another Output Transformer Wiring Question
  125. Cathode bias for EL84 PPP
  126. Output Transformer Wiring Question
  127. NJ7P Tube Database
  128. solving my old radiogram sound issues - help
  129. 6H9c Idle Current.
  130. 12E1 SE amp suggestions.
  131. Direct Coupled Output Stage, DC Bias Balance
  132. Pre-amp tube suggestions for 2A3 output tube
  133. AirTight ATM-1 Schematic
  134. Counterpoint SA 5000 Service manual and PSU
  135. Rectifier tube ? - Berman 76 preamp
  136. Cathode feedback (SE amp)
  137. Will anybody interest in stamp size ccs module?
  138. Fairchild voltage questions
  139. Help with a Sylvania 7695 Project
  140. Flicker Noise dominates triode noise in audio (AES)
  141. A tube for SE with 1k-1k5 load
  142. scott stereomaster 233 restoration
  143. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  144. What to do with C3g tubes
  145. Can anyone ID an output transformer's part number?
  146. Nestorovic NA-1 & Alpha-1 Schematics
  147. Data for 6BD2
  148. Ken Shindo R.I.P
  149. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  150. Seas Trym with SE KT88 amplifier?
  151. 845-Amp-IT-Coupled
  152. Data for 6RA3
  153. Miniwatt N3 not turning on!
  154. I need ideas on a can capacitor
  155. Help with tube for power supply...
  156. AVC vs TVC for 10y line preamp
  157. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  158. help on 845 amp
  159. High voltage power tube question
  160. Tribute OPT for PSE 300B
  161. Floating Paraphase.
  162. 6Q7G as driver in RH807
  163. Custom tubes4hifi m-125 monoblocks
  164. Antique Audio Preamlifier made in USA
  165. directly heated tube rectifiers
  166. Biasing a 12EA6 low voltage pentode
  167. Power supply doubt
  168. Vinyl Savor's Octal 6GL7 preamp?
  169. 837 tube
  170. Tone control bypass (Kontakt KT-7)
  171. drdwers
  172. Amplifier Sensitivity?
  173. identify nickel laminations
  174. Recapping Vintage EL84 amp
  175. opinion on dynaco mark VI
  176. How can i have 450 Volts ?
  177. Balanced Preamp
  178. ecc99-300b
  179. Question about the tube specs/testing?
  180. Transformer Winding Configuration, Hafler 2,815,402
  181. PSU with SS Choke for Loftin-White 2a3.
  182. HP 8903 Pete Millet's Software on Window 8 ?
  183. Cathode Destruction
  184. Earth SuperBass B-2000 bass head info needed
  185. More radio shack dissapointment
  186. What to do with transformer secondary when used as a choke?
  187. Slight transformer buzzing in Engineers Amp
  188. Couple Gyrator Questions
  189. Shishido/Loftin-White 2A3/45 Extasy..
  190. When is a tube not a Valve?
  191. Relay Recommendataion
  192. 6080 monotriod amplifier
  193. Tetra Sans PS Phono Stage Power Supply
  194. transformer test
  195. Could someone tell me more about the Mesa Boogie Strategy 400?
  196. New OTL headphone project with EC88 and 6080
  197. Philips Tube Code
  198. Edcor GXPP vs. CXPP
  199. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  200. Marshall Guitar Conversion 12AX7 Replacement
  201. affordable potted power transformer?
  202. Am I pushing the envelope too far? Layout concerns.
  203. Pete Millet's Uniamp
  204. 6211 for???
  205. Picking an output transformer: power vs. sound quality
  206. Tube emulation with transistors
  207. Altec 1570b Tube Swap
  208. Popping stepped attenuator
  209. 6922 driver/cathodyne - direct coupled
  210. Solid state rectifier with these tubes
  211. Need advice -- Improving an old tube amp
  212. KT88 SE developed a buzz
  213. Guidance on amp design
  214. OTL3 Autograph Series
  215. DAC Tube i/v help!
  216. Need help figuring out a tube amp!
  217. Parallel 12AT7 output stage design?
  218. 6SN7 SRPP
  219. Problem Bi-Amping
  220. Amplifier recommendation
  221. DIY tube amplifier got no sound but all tubes are fired up.
  222. Circuit for Melos 333
  223. DHT Tube regulated power supply
  224. Akai M8 Restoration, newbie questions
  225. Bench Power Supply - what to get?
  226. Telefunken RS241 Design Help
  227. Telefunken Hymnus 5328 MX console
  228. Some Dummy DHT Questions
  229. Inductance loading tube stage questions
  230. Simple tube kit for tube sound ?
  231. Voltage Divider with Capacitor Across Resistor to Ground
  232. FM Demodulator for Tube receivers
  233. The best amp to DIY?
  234. SE Tubelab / EL34b tubes / Transformers
  235. Heath Kit Pre Amp
  236. Preamp hiss noise
  237. Tube preamp?
  238. 417a load line
  239. 6N1 + 6P3P build, need some help.
  240. Caps connected in series in Audio Note kit 4
  241. Ground loop cure?
  242. Dynaco ST-70 Clone
  243. Op Amp Phase Splitter
  244. Idea for ECC85 or EM84?
  245. Why no sound?
  246. single ended tube amp sounds itself
  247. Proper Pentode Usage 717A (713A)
  248. Help with Mullard 5 20 project
  249. Help on Negative Feedback in KT66 PP
  250. Trying to understand 6BM8 regulator (audio note clone)

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