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  1. Need Review of wiring up of this SRPP 6AS7 tube amp
  2. Hum in a triode 1H6G...help !
  3. 40w Class A PP KT66?
  4. My new small amp EL84 SE Triode
  5. tube preamp output impedance
  6. pete millet 807 amp
  7. Lost Negative Bias-Fixed Bias
  8. Aikido ('dead quiet') output impedance
  9. Looking for lineamp buffer schematics
  10. Nagra VPA 845
  11. How to match 6C45?
  12. Yet another question about cathode bias (led+pnp)
  13. Ideal System for 1960?
  14. What replaces an IN541 diode?
  15. Bottlehead Eros or Tube4Hifi PH16
  16. Psvane 2a3 T Mk II reliable vender
  17. Odd Wima cap markings
  18. Chinese Amp kit experience
  19. Considerations about headph. OCL
  20. Trying to solve a Plate Follower Problem
  21. Nichicon Caps
  22. Footprint Noval ECC83 Altium
  23. Interference in hybrid amp
  24. wiring DHT filaments with center tapped secondaries
  25. B+ of Curcio Daniel II
  26. Stepped Attenuators Questions
  27. Noisy Ground? (Probably not a loop)
  28. New Production Telefunken
  29. Tube horizontal mounting position
  30. "Ask Jan First" parts website in Germany
  31. EZ215 Stereo 5881 Amp Project
  32. CCS help dn2540 send 340v to the chassis
  33. That's What She Said RH84 Build Log
  34. Help figuring out this output transformer.
  35. 5881 PPP Cathode Bias B+
  36. Measuring DHT filament V with minimal effect.
  37. 100hz hum with Audio Research vs-55
  38. Volume potentiometer
  39. Driver for 2A3C
  40. Regulated B+ sounds worse?
  41. Sylvania console amp rebuild...
  42. E130L Micron
  43. Question Re: Ground Loop Breakers
  44. Source for D3A/7721?
  45. ID a salvaged choke
  46. Magnetwire gauge size converted to metric
  47. ccs what is the best way
  48. parafeed test/measurement setup question.
  49. how do balance pots work?
  50. Issue with parafeed in SPICE
  51. GU-50 Dissected
  52. Need help on ground wiring for Scott 222-B
  53. Heathkit A9-C Mod
  54. Need a 240v, 5vac - 6-10A rectifier transformer
  55. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  56. 6AS7 SET amp discussion from Photo Gallery
  57. DHT 100hz hum
  58. HP 8903B and Pete Millett's Software Problem ?
  59. How to identify an ARC D70 version ?
  60. Valve amp first build - questions
  61. Transfrmer Impedance Question
  62. Disappointing results from RH84
  63. Anyone Loose a Counterpoint SA-5000?
  64. Installing a 610 in to a B&K 500
  65. My first tube preamp (4S)....
  66. Recycling old iron with stiff wires.
  67. 6EM7 as driver... help !!!
  68. changing R1 value in SE amp
  69. Heater CCS makes for low voltage
  70. DHT & Indirect on same line?
  71. Which tube preamplifier kit for LM3886 amplifier?
  72. budgie pre-amp
  73. ecl82 class A pp, need schematic
  74. Input low pass preferred method
  75. cary SLP50A
  76. se output options for single/balanced tda1541
  77. FM noise in Fisher 90-T in FM mode
  78. ST Triodes?
  79. TUBECAD SE.
  80. RH84 build with SS recto and voltage doubler (any input?)
  81. Tube identification
  82. Brand new cap overheating - argh
  83. High Power Valves
  84. Tubelab SSE B+ and cathode resistor questions
  85. HIFI world 6080 se
  86. EF86 triode question
  87. Connecting a Headphone Jack to a Preamp
  88. PSE 300B "French connexion"
  89. Making a custom tube characteristic graph
  90. 300B DRD power supply
  91. Insanely High Common Mode Voltage Shunt Measurement
  92. Heathkit AA-151 troubles
  93. Tube Power supply question...
  94. Noob question on power transformer primary input voltage
  95. Dynaco ST35 testing for a blown power transformer
  96. 6n6p tube buffer
  97. Welborne Labs
  98. GU-50 triode
  99. Help track down noise in gyrator
  100. Earphone Amp Improvements
  101. Protecting Wire
  102. 45 SET : tubelab vs get*set*go vs ?
  103. 6SL7 in Maggy 175 amp...
  104. Heater soft start for series-connected preamp valves
  105. low/no gain follower
  106. Data for 6BD2A or 6BD2
  107. isolation test
  108. Western Electric 437A preamp
  109. solid-state rectrification
  110. Class AB
  111. push-pull
  112. Need help ID tango-lookalike transformers
  113. TV Valves blast from the past..
  114. Tubes suggestions for parafeed headphones amp ?
  115. CCS Loadline
  116. Universal pover supply for ECC85 EL84
  117. Conversion Project
  118. Dynaco PAS I/O PCB Grounding
  119. CCS for anode load
  120. OTL Power Supply: Halfwave vs Virtual Ground
  121. Can NOS tubes have emission staining on the glass?
  122. Pentode pre/compressor (warning nube attempt at circuit drafting) --suppressor grid
  123. Capacitor Drain for Tube Bench Power Supply ?
  124. Diodes, diodes, diodes...
  125. Grid leak resistors and dc-coupling
  126. Output transformer at speaker?
  127. Newbie just wondering if this PP amp looks ok
  128. 6P36S push pull HiFi amp
  129. Another Output Transformer Wiring Question
  130. Cathode bias for EL84 PPP
  131. Output Transformer Wiring Question
  132. NJ7P Tube Database
  133. solving my old radiogram sound issues - help
  134. 6H9c Idle Current.
  135. 12E1 SE amp suggestions.
  136. Direct Coupled Output Stage, DC Bias Balance
  137. Pre-amp tube suggestions for 2A3 output tube
  138. AirTight ATM-1 Schematic
  139. Counterpoint SA 5000 Service manual and PSU
  140. Rectifier tube ? - Berman 76 preamp
  141. Cathode feedback (SE amp)
  142. Will anybody interest in stamp size ccs module?
  143. Fairchild voltage questions
  144. Help with a Sylvania 7695 Project
  145. Flicker Noise dominates triode noise in audio (AES)
  146. A tube for SE with 1k-1k5 load
  147. scott stereomaster 233 restoration
  148. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  149. What to do with C3g tubes
  150. Can anyone ID an output transformer's part number?
  151. Nestorovic NA-1 & Alpha-1 Schematics
  152. Data for 6BD2
  153. Ken Shindo R.I.P
  154. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  155. Seas Trym with SE KT88 amplifier?
  156. 845-Amp-IT-Coupled
  157. Data for 6RA3
  158. Miniwatt N3 not turning on!
  159. I need ideas on a can capacitor
  160. Help with tube for power supply...
  161. AVC vs TVC for 10y line preamp
  162. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  163. help on 845 amp
  164. High voltage power tube question
  165. Tribute OPT for PSE 300B
  166. Floating Paraphase.
  167. 6Q7G as driver in RH807
  168. Custom tubes4hifi m-125 monoblocks
  169. Antique Audio Preamlifier made in USA
  170. directly heated tube rectifiers
  171. Biasing a 12EA6 low voltage pentode
  172. Power supply doubt
  173. Vinyl Savor's Octal 6GL7 preamp?
  174. 837 tube
  175. Tone control bypass (Kontakt KT-7)
  176. drdwers
  177. Amplifier Sensitivity?
  178. identify nickel laminations
  179. Recapping Vintage EL84 amp
  180. opinion on dynaco mark VI
  181. How can i have 450 Volts ?
  182. Balanced Preamp
  183. ecc99-300b
  184. Question about the tube specs/testing?
  185. Transformer Winding Configuration, Hafler 2,815,402
  186. PSU with SS Choke for Loftin-White 2a3.
  187. HP 8903 Pete Millet's Software on Window 8 ?
  188. Cathode Destruction
  189. Earth SuperBass B-2000 bass head info needed
  190. More radio shack dissapointment
  191. What to do with transformer secondary when used as a choke?
  192. Slight transformer buzzing in Engineers Amp
  193. Couple Gyrator Questions
  194. Shishido/Loftin-White 2A3/45 Extasy..
  195. When is a tube not a Valve?
  196. Relay Recommendataion
  197. 6080 monotriod amplifier
  198. Tetra Sans PS Phono Stage Power Supply
  199. transformer test
  200. Could someone tell me more about the Mesa Boogie Strategy 400?
  201. New OTL headphone project with EC88 and 6080
  202. Philips Tube Code
  203. Edcor GXPP vs. CXPP
  204. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  205. Marshall Guitar Conversion 12AX7 Replacement
  206. affordable potted power transformer?
  207. Am I pushing the envelope too far? Layout concerns.
  208. Pete Millet's Uniamp
  209. 6211 for???
  210. Picking an output transformer: power vs. sound quality
  211. Tube emulation with transistors
  212. Altec 1570b Tube Swap
  213. Popping stepped attenuator
  214. 6922 driver/cathodyne - direct coupled
  215. Solid state rectifier with these tubes
  216. Need advice -- Improving an old tube amp
  217. KT88 SE developed a buzz
  218. Guidance on amp design
  219. OTL3 Autograph Series
  220. DAC Tube i/v help!
  221. Need help figuring out a tube amp!
  222. Parallel 12AT7 output stage design?
  223. 6SN7 SRPP
  224. Problem Bi-Amping
  225. Amplifier recommendation
  226. DIY tube amplifier got no sound but all tubes are fired up.
  227. Circuit for Melos 333
  228. DHT Tube regulated power supply
  229. Akai M8 Restoration, newbie questions
  230. Bench Power Supply - what to get?
  231. Telefunken RS241 Design Help
  232. Telefunken Hymnus 5328 MX console
  233. Some Dummy DHT Questions
  234. Inductance loading tube stage questions
  235. Simple tube kit for tube sound ?
  236. Voltage Divider with Capacitor Across Resistor to Ground
  237. FM Demodulator for Tube receivers
  238. The best amp to DIY?
  239. SE Tubelab / EL34b tubes / Transformers
  240. Heath Kit Pre Amp
  241. Preamp hiss noise
  242. Tube preamp?
  243. 417a load line
  244. 6N1 + 6P3P build, need some help.
  245. Caps connected in series in Audio Note kit 4
  246. Ground loop cure?
  247. Dynaco ST-70 Clone
  248. Op Amp Phase Splitter
  249. Idea for ECC85 or EM84?
  250. Why no sound?

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