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  1. Heater current effects
  2. Not using all the sections on multi-section cap
  3. DC heater supply dies on me
  4. 1972 Leak Varislope 2 Stereo
  5. OPT secondary ground, stacked supplies
  6. OTL for HeaPhone
  7. Voltage doubler and filament supply
  8. Please suggest me a 6V6 class AB amp
  9. Need Review of wiring up of this SRPP 6AS7 tube amp
  10. Hum in a triode 1H6G...help !
  11. 40w Class A PP KT66?
  12. My new small amp EL84 SE Triode
  13. tube preamp output impedance
  14. pete millet 807 amp
  15. Lost Negative Bias-Fixed Bias
  16. Aikido ('dead quiet') output impedance
  17. Looking for lineamp buffer schematics
  18. Nagra VPA 845
  19. How to match 6C45?
  20. Yet another question about cathode bias (led+pnp)
  21. What replaces an IN541 diode?
  22. Bottlehead Eros or Tube4Hifi PH16
  23. Psvane 2a3 T Mk II reliable vender
  24. Odd Wima cap markings
  25. Chinese Amp kit experience
  26. Considerations about headph. OCL
  27. Trying to solve a Plate Follower Problem
  28. Footprint Noval ECC83 Altium
  29. Interference in hybrid amp
  30. wiring DHT filaments with center tapped secondaries
  31. B+ of Curcio Daniel II
  32. Stepped Attenuators Questions
  33. Noisy Ground? (Probably not a loop)
  34. New Production Telefunken
  35. Tube horizontal mounting position
  36. "Ask Jan First" parts website in Germany
  37. EZ215 Stereo 5881 Amp Project
  38. CCS help dn2540 send 340v to the chassis
  39. That's What She Said RH84 Build Log
  40. Help figuring out this output transformer.
  41. 5881 PPP Cathode Bias B+
  42. Measuring DHT filament V with minimal effect.
  43. 100hz hum with Audio Research vs-55
  44. Volume potentiometer
  45. Driver for 2A3C
  46. Regulated B+ sounds worse?
  47. Sylvania console amp rebuild...
  48. E130L Micron
  49. Question Re: Ground Loop Breakers
  50. Source for D3A/7721?
  51. ID a salvaged choke
  52. Magnetwire gauge size converted to metric
  53. ccs what is the best way
  54. parafeed test/measurement setup question.
  55. how do balance pots work?
  56. Issue with parafeed in SPICE
  57. GU-50 Dissected
  58. Need help on ground wiring for Scott 222-B
  59. Heathkit A9-C Mod
  60. Need a 240v, 5vac - 6-10A rectifier transformer
  61. Free Canadian Westinghouse Receiver #101: Super Heterodyne
  62. 6AS7 SET amp discussion from Photo Gallery
  63. DHT 100hz hum
  64. HP 8903B and Pete Millett's Software Problem ?
  65. How to identify an ARC D70 version ?
  66. Valve amp first build - questions
  67. Transfrmer Impedance Question
  68. Disappointing results from RH84
  69. Anyone Loose a Counterpoint SA-5000?
  70. Installing a 610 in to a B&K 500
  71. My first tube preamp (4S)....
  72. Recycling old iron with stiff wires.
  73. 6EM7 as driver... help !!!
  74. changing R1 value in SE amp
  75. Heater CCS makes for low voltage
  76. DHT & Indirect on same line?
  77. Which tube preamplifier kit for LM3886 amplifier?
  78. budgie pre-amp
  79. ecl82 class A pp, need schematic
  80. Input low pass preferred method
  81. cary SLP50A
  82. se output options for single/balanced tda1541
  83. FM noise in Fisher 90-T in FM mode
  84. ST Triodes?
  85. TUBECAD SE.
  86. RH84 build with SS recto and voltage doubler (any input?)
  87. Tube identification
  88. Brand new cap overheating - argh
  89. High Power Valves
  90. HIFI world 6080 se
  91. EF86 triode question
  92. Connecting a Headphone Jack to a Preamp
  93. PSE 300B "French connexion"
  94. Making a custom tube characteristic graph
  95. 300B DRD power supply
  96. Insanely High Common Mode Voltage Shunt Measurement
  97. Heathkit AA-151 troubles
  98. Tube Power supply question...
  99. Noob question on power transformer primary input voltage
  100. Dynaco ST35 testing for a blown power transformer
  101. 6n6p tube buffer
  102. Welborne Labs
  103. GU-50 triode
  104. Help track down noise in gyrator
  105. Earphone Amp Improvements
  106. Protecting Wire
  107. 45 SET : tubelab vs get*set*go vs ?
  108. 6SL7 in Maggy 175 amp...
  109. Heater soft start for series-connected preamp valves
  110. low/no gain follower
  111. Data for 6BD2A or 6BD2
  112. isolation test
  113. Western Electric 437A preamp
  114. solid-state rectrification
  115. Class AB
  116. push-pull
  117. Need help ID tango-lookalike transformers
  118. TV Valves blast from the past..
  119. Tubes suggestions for parafeed headphones amp ?
  120. CCS Loadline
  121. Universal power supply for ECC85 EL84
  122. Conversion Project
  123. Dynaco PAS I/O PCB Grounding
  124. CCS for anode load
  125. OTL Power Supply: Halfwave vs Virtual Ground
  126. Can NOS tubes have emission staining on the glass?
  127. Capacitor Drain for Tube Bench Power Supply ?
  128. Grid leak resistors and dc-coupling
  129. Output transformer at speaker?
  130. Newbie just wondering if this PP amp looks ok
  131. 6P36S push pull HiFi amp
  132. Another Output Transformer Wiring Question
  133. Cathode bias for EL84 PPP
  134. Output Transformer Wiring Question
  135. NJ7P Tube Database
  136. solving my old radiogram sound issues - help
  137. 6H9c Idle Current.
  138. 12E1 SE amp suggestions.
  139. Direct Coupled Output Stage, DC Bias Balance
  140. Pre-amp tube suggestions for 2A3 output tube
  141. AirTight ATM-1 Schematic
  142. Counterpoint SA 5000 Service manual and PSU
  143. Rectifier tube ? - Berman 76 preamp
  144. Cathode feedback (SE amp)
  145. Will anybody interest in stamp size ccs module?
  146. Fairchild voltage questions
  147. Help with a Sylvania 7695 Project
  148. Flicker Noise dominates triode noise in audio (AES)
  149. A tube for SE with 1k-1k5 load
  150. scott stereomaster 233 restoration
  151. Homebrew Dynaco MkIII Problems - PLEASE HELP!
  152. What to do with C3g tubes
  153. Can anyone ID an output transformer's part number?
  154. Nestorovic NA-1 & Alpha-1 Schematics
  155. Data for 6BD2
  156. Ken Shindo R.I.P
  157. HiFi 6n9p EL34 B + 5z3p Class A Tube valve amplifier
  158. Seas Trym with SE KT88 amplifier?
  159. 845-Amp-IT-Coupled
  160. Data for 6RA3
  161. Miniwatt N3 not turning on!
  162. Help with tube for power supply...
  163. AVC vs TVC for 10y line preamp
  164. help needed with Lumley 120 monoblocks + Sonus Fabre speakers
  165. help on 845 amp
  166. High voltage power tube question
  167. Tribute OPT for PSE 300B
  168. Floating Paraphase.
  169. 6Q7G as driver in RH807
  170. Custom tubes4hifi m-125 monoblocks
  171. Antique Audio Preamlifier made in USA
  172. directly heated tube rectifiers
  173. Biasing a 12EA6 low voltage pentode
  174. Power supply doubt
  175. Vinyl Savor's Octal 6GL7 preamp?
  176. 837 tube
  177. Tone control bypass (Kontakt KT-7)
  178. drdwers
  179. Amplifier Sensitivity?
  180. identify nickel laminations
  181. Recapping Vintage EL84 amp
  182. Luxman Active 3-way Tube Crossover
  183. opinion on dynaco mark VI
  184. How can i have 450 Volts ?
  185. Balanced Preamp
  186. ecc99-300b
  187. Question about the tube specs/testing?
  188. Transformer Winding Configuration, Hafler 2,815,402
  189. PSU with Choke for Loftin-White 2A3
  190. HP 8903 Pete Millet's Software on Window 8 ?
  191. Cathode Destruction
  192. More radio shack dissapointment
  193. What to do with transformer secondary when used as a choke?
  194. Slight transformer buzzing in Engineers Amp
  195. Couple Gyrator Questions
  196. Shishido/Loftin-White 2A3/45 Extasy..
  197. When is a tube not a Valve?
  198. Relay Recommendataion
  199. 6080 SE triode amplifier
  200. Tetra Sans PS Phono Stage Power Supply
  201. transformer test
  202. New OTL headphone project with EC88 and 6080
  203. Philips Tube Code
  204. Edcor GXPP vs. CXPP
  205. Shorting or Non-Shorting Rotary Switch: Hi-Low Z tube headphone amp
  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. Heath Kit Pre Amp
  240. Preamp hiss noise
  241. Tube preamp?
  242. 417a load line
  243. 6N1 + 6P3P build, need some help.
  244. Caps connected in series in Audio Note kit 4
  245. Ground loop cure?
  246. Dynaco ST-70 Clone
  247. Op Amp Phase Splitter
  248. Idea for ECC85 or EM84?
  249. Why no sound?
  250. single ended tube amp sounds itself

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