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  1. 6P3S SE amp requesting
  2. Newbie needs Magnavox console troubleshooting tips
  3. 6bBYGA x2 as full-wave rectifier?
  4. Digital volume/tone control in Tube amps
  5. plotting load-line for OTL amp?
  6. New SE 6P15P project
  7. New Production Shuguang Type 50 Tubes
  8. Running different tubes
  9. Fairchild 260 rebuild questions
  10. Filament Voltage vs. Hum
  11. drawing a loadline from schematics
  12. Know this tube? 10J12C or 10X12C ...
  13. Precision Fidelity - C7 Mods...help Wanted!
  14. stupid newbie: what is this transformer???
  15. Anyone else having problems with Mercury Magnetics transformers?
  16. EF86-EL84: too much gain!
  17. Balanced Power
  18. GTA 300B SE Mk.II Power Transformer
  19. Tube Shields
  20. Some basic questions about s-5 amp kit mods
  21. Novice Voltage Regulator Question
  22. The Critical Ear
  23. Tube matching service - As found on Craigslist
  24. 6j1 question
  25. Duosonic 40's era record player
  26. 6bl8 el84 nfb question
  27. 6T9 push pull
  28. 12AY7 circuit?
  29. E810F: RIAA circuits
  30. need EL519/6KG6 spice 3f4 model
  31. enough gain for James tone stack
  32. Anyone recognise this amp?
  33. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  34. matched tubes?
  35. List of current production types
  36. Soundcard greater than 24-bit
  37. Replacing Valves Leak Stereo 20
  38. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  39. I Damaged my Amp?
  40. EL84 Triode PP Design
  41. pentode with grid AND cathode tied to gnd?
  42. What d'you put in the PSU chassis, and what in the circuit chassis?
  43. a real no-brainer question about 1/2 tubes
  44. 813 power supply question
  45. ESR of motor-run caps?
  46. OPT-102 - data? (Audio Electronic Supply)
  47. Help me out with a circuit design
  48. Partial Feedback EL84PP - Not quite as expected (yet)
  49. Preamp suggestions - Help a hack have some fun
  50. 6GK6 Ultralinear
  51. Vacuum Rectifier Question
  52. LM4702 meets up with 6550's
  53. 6bx7gt envelope temperature
  54. Counterpoint SA 3 schematic
  55. Tubes measured in microhms = mA..?
  56. Checking ARC SP9
  57. 6J11 Datasheet anyone?
  58. Help cleaning tube pins
  59. Best way to use a PAIR of 6SL7ís to drive a 300B?
  60. preamp cathode bypass cap benefits
  61. EF184 or (EC)L82 radio amplifier?!
  62. 5687 for Aikido
  63. Pre Amplifier Out Sockets
  64. Recommended output valves for this transformer
  65. power tubes and learning SET design
  66. Phono pre-amp Question
  67. TVA-1 cathode resistor value
  68. need power tranformer ideas
  69. Cary Cad-300b Se
  70. newbie question about 7591 cathode bias
  71. 5814 Raytheon Windmill Getter late 50's
  72. Fundamentals of tube amp design
  73. 7868 amp sounds good but low volume
  74. How does class AB2 sound?
  75. 6sn7 brand
  76. Might speaker filters be in the wrong place?
  77. Problem: attenuation after cathodyne and CF
  78. LED bias and differential pairs
  79. Kimmel Mu stage summary sheet
  80. Tube buffer for car audio
  81. Practical PSE thinking.
  82. I need help on a Simple guitar/vocal pre amp.
  83. Kr300bxls
  84. Biggest noval dual triode?
  85. 2 amps with 1 set of speakers?
  86. tubeamp kits
  87. Tripletone amplifier
  88. Tube curves tracer
  89. Help with Shunt Regulation and Noise
  90. Plug 'N' Play B+ time delay
  91. Hot Rod "Bronco" project/TRANSFORMERS
  92. Precision PA conversion help needed
  93. Caps in Voltage divider Heater Bias ?
  94. Looking for Melos triode 200+ schematics
  95. ETF07 brief summary
  96. No response from Vacuumtubes.net
  97. dynakit pam selenium rectifier replacement help
  98. Adjustable Fixed Grid Bias
  99. Best output transformer for 300B
  100. Transconductance of E88CC,6922,6N23P
  101. Finding The Root Of The Problem
  102. Beard P35
  103. purple tube heaters...
  104. Which 12AU7 and 6V6GTs?
  105. 6f2 - 6n1???
  106. Help with Schematic
  107. Class A Push Pull with 6L6GC
  108. EL84 driver tube, with less than 5mA current
  109. Sleeping Sickness
  110. 50L6-GT or 6W6-GT
  111. Help ID this transformer
  112. Tube dropping - Help?
  113. For anyone running a K-502 with a FR driver
  114. Active crossover
  115. General guidence building guitar amp
  116. Pounds, Shillings and Pence
  117. Trying to learn something, against my better judgment
  118. Battery grid bias to fixed bias in Toccato?
  119. PLS take a look!
  120. Use for 5K:8 PP OPT?
  121. Low amp Impedance input and high dac output
  122. The Magic of a Name
  123. which edition of Morgan Jones' books?
  124. altec 1530 schematic
  125. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  126. 6HB6/6HA& Spud?
  127. schematic diagram golden tube se40 for repair! help
  128. Reliable B+ PSU for pro preamp
  129. Help me find some info please
  130. Some tube radios
  131. Electro Harmonix 300b...shorting problems?
  132. Aikido linestage tube choice? (again)
  133. Teeco 1220??
  134. magic smoke pilot aa903
  135. PP bias balance pot
  136. Jolida JD 502A
  137. Cathode Bias for SimpleSE
  138. TRemPre malfunctioning
  139. HV benchtop power supply, help on opamp setup
  140. Transcendar Output Transformers ST70
  141. Unofficial Tube Market Survey
  142. testing 6DJ8s
  143. 6L6 AB PPP stage; does it make sense?
  144. 7868 tubes - replace with 6L6's?
  145. Vintage Amp...too much gain on CD
  146. ETF07 - Last possibility to join
  147. Tube 7403
  148. New SET: JE labs simple 45 or tubelab SE?
  149. Melos triode and computer as source: BUZZ BUZZ BUZZ
  150. 6SN7 Cascoded CCS
  151. 7591 se tube amp?
  152. Sovtek 5881WXT/Quad II
  153. Adding more capacitors to an AMP
  154. Tube Characteristics
  155. Tube guilt
  156. KT88 or 6550
  157. Single ended OTL Transcendent
  158. K-12 kit, buzz in R channel
  159. Hickok 752A repair
  160. my new tube line stage
  161. Audio Innovations Series 200 Phono Stage
  162. is it correct to calculate OTL?
  163. Late Halloween Cartoon
  164. on/off/on switch for bright/bold?
  165. Another CCS for tubes/valves: PCBs
  166. Customdaveus
  167. newbie questions on Bogen M330A repair
  168. crackling sound from one channel
  169. Cosmos Valve amplifier
  170. The Vacuum Tube Truth
  171. Inverted Triode SE OTL
  172. Negative feedback problems on ECL82 SE amp.
  173. Cheap tester?
  174. Anyone familiar with Hyuger HK-300BS kit from Hino Audio?
  175. Fisher SA 1000
  176. Hot Hot Hot
  177. Dynaco PAS-4 manual
  178. amplifier pp with 6p3s
  179. rusty chassis - what to do?
  180. Use 9 pin Aikido PCB kit or buy 8 pin ?
  181. Where to find data sheets?
  182. how to reverse signal for Common Cathode circuit
  183. Audio note M2 power supply resistor value
  184. Are 6DZ7 to Rare to be fun?
  185. 7868 substitutes
  186. Millet Hybrid - stacked buffers
  187. Repairing an old tube raido
  188. 3 way ultimate DIY phonostage match!
  189. wanted sv572-3
  190. General Aikido power supply question
  191. question about beefing up my monoblocks
  192. multichannel tube amp
  193. Who can explain this FFT graph to me
  194. Equivalent Noise Resistance
  195. Any Tube heads near Central coast NSW
  196. Question
  197. Screen Supply For PP Amp
  198. Datasheets: RC coupled amp VS. typical characteristics
  199. How to calculate Tube Preamp output impedance?
  200. What vintage tube books do you own?
  201. re design of a SE tube amplifier
  202. NRI 70 tube chart
  203. Multimeter
  204. fizzy and unstable
  205. Russian spud amp
  206. Silly Question about 807
  207. Help with dared MP-15, please!
  208. tube tester B&k 606 Transformer brun need help
  209. Do tube curves tell most of the story?
  210. Sovtek 6B4-G
  211. Ultimate Amplifier
  212. How quiet is dead quiet?
  213. Max B+ for triode-connected KT88
  214. Acrosound Archive
  215. Hail to Vintage Power Transformer & Choke?
  216. 2a3 parafeed
  217. Kimmel mu stage
  218. 4043c
  219. Impedance quandary
  220. 6L6G Amp recommendations
  221. Beefing up the power supply
  222. System distortion and Single Ended Tube Amps
  223. TB3/1000 is alive ! ("European 833A")
  224. Another tube newb
  225. Decoding another recycled power trans
  226. parafeed plate choke calculation
  227. New to tube building / design - Input requested!
  228. tube preamp with hum??emf
  229. Which tubes for this OPT?
  230. Vacuum tube tester, do you own one?
  231. Ping salas re: LED baising
  232. Model train throttles?
  233. Microphonics that go away by themselves
  234. Variable cathode/plate resistors?
  235. 2 newbe questions
  236. 12B4A + LL1671 Linestage
  237. crate vintage "club 50" schematics needed
  238. Distortion Analysis using an Oscilloscope
  239. Western Electric 'Harmonic Equalizer'
  240. Tube Newb Mc Intosh questions.
  241. AH NJoe TJOEB, valve compatibility issue
  242. Tubes: test as New? translation please
  243. new s5 tube amp kit
  244. Stereo BusBar OK?
  245. Fi Primer 807
  246. Calculating power output in the design stage?
  247. Overdriving the grid of a triode
  248. Newb Questions RE: HS caps & B+ Bias
  249. mercury vapor... i love it!!!
  250. Interstage Couple 300B 811-3 SE amp

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