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  1. LED bias and differential pairs
  2. Kimmel Mu stage summary sheet
  3. Tube buffer for car audio
  4. Practical PSE thinking.
  5. I need help on a Simple guitar/vocal pre amp.
  6. Kr300bxls
  7. Biggest noval dual triode?
  8. 2 amps with 1 set of speakers?
  9. tubeamp kits
  10. Tripletone amplifier
  11. Tube curves tracer
  12. Help with Shunt Regulation and Noise
  13. Plug 'N' Play B+ time delay
  14. Hot Rod "Bronco" project/TRANSFORMERS
  15. Precision PA conversion help needed
  16. Caps in Voltage divider Heater Bias ?
  17. Looking for Melos triode 200+ schematics
  18. ETF07 brief summary
  19. No response from Vacuumtubes.net
  20. dynakit pam selenium rectifier replacement help
  21. Adjustable Fixed Grid Bias
  22. Best output transformer for 300B
  23. Transconductance of E88CC,6922,6N23P
  24. Finding The Root Of The Problem
  25. Beard P35
  26. purple tube heaters...
  27. Which 12AU7 and 6V6GTs?
  28. 6f2 - 6n1???
  29. Help with Schematic
  30. Class A Push Pull with 6L6GC
  31. EL84 driver tube, with less than 5mA current
  32. Sleeping Sickness
  33. 50L6-GT or 6W6-GT
  34. Help ID this transformer
  35. Tube dropping - Help?
  36. For anyone running a K-502 with a FR driver
  37. Active crossover
  38. General guidence building guitar amp
  39. Pounds, Shillings and Pence
  40. Trying to learn something, against my better judgment
  41. Battery grid bias to fixed bias in Toccato?
  42. PLS take a look!
  43. Use for 5K:8 PP OPT?
  44. Low amp Impedance input and high dac output
  45. The Magic of a Name
  46. which edition of Morgan Jones' books?
  47. altec 1530 schematic
  48. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  49. 6HB6/6HA& Spud?
  50. schematic diagram golden tube se40 for repair! help
  51. Reliable B+ PSU for pro preamp
  52. Help me find some info please
  53. Some tube radios
  54. Electro Harmonix 300b...shorting problems?
  55. Aikido linestage tube choice? (again)
  56. Teeco 1220??
  57. magic smoke pilot aa903
  58. PP bias balance pot
  59. Jolida JD 502A
  60. Cathode Bias for SimpleSE
  61. TRemPre malfunctioning
  62. HV benchtop power supply, help on opamp setup
  63. Transcendar Output Transformers ST70
  64. Unofficial Tube Market Survey
  65. testing 6DJ8s
  66. 6L6 AB PPP stage; does it make sense?
  67. 7868 tubes - replace with 6L6's?
  68. Vintage Amp...too much gain on CD
  69. ETF07 - Last possibility to join
  70. Tube 7403
  71. New SET: JE labs simple 45 or tubelab SE?
  72. Melos triode and computer as source: BUZZ BUZZ BUZZ
  73. 6SN7 Cascoded CCS
  74. 7591 se tube amp?
  75. Sovtek 5881WXT/Quad II
  76. Adding more capacitors to an AMP
  77. Tube Characteristics
  78. Tube guilt
  79. KT88 or 6550
  80. Single ended OTL Transcendent
  81. K-12 kit, buzz in R channel
  82. Hickok 752A repair
  83. my new tube line stage
  84. Audio Innovations Series 200 Phono Stage
  85. is it correct to calculate OTL?
  86. Late Halloween Cartoon
  87. on/off/on switch for bright/bold?
  88. Another CCS for tubes/valves: PCBs
  89. Customdaveus
  90. newbie questions on Bogen M330A repair
  91. crackling sound from one channel
  92. Cosmos Valve amplifier
  93. The Vacuum Tube Truth
  94. Inverted Triode SE OTL
  95. Negative feedback problems on ECL82 SE amp.
  96. Cheap tester?
  97. Anyone familiar with Hyuger HK-300BS kit from Hino Audio?
  98. Fisher SA 1000
  99. Hot Hot Hot
  100. Dynaco PAS-4 manual
  101. amplifier pp with 6p3s
  102. rusty chassis - what to do?
  103. Use 9 pin Aikido PCB kit or buy 8 pin ?
  104. Where to find data sheets?
  105. how to reverse signal for Common Cathode circuit
  106. Audio note M2 power supply resistor value
  107. Are 6DZ7 to Rare to be fun?
  108. 7868 substitutes
  109. Millet Hybrid - stacked buffers
  110. Repairing an old tube raido
  111. 3 way ultimate DIY phonostage match!
  112. wanted sv572-3
  113. General Aikido power supply question
  114. question about beefing up my monoblocks
  115. multichannel tube amp
  116. Who can explain this FFT graph to me
  117. Equivalent Noise Resistance
  118. Any Tube heads near Central coast NSW
  119. Question
  120. Screen Supply For PP Amp
  121. Datasheets: RC coupled amp VS. typical characteristics
  122. How to calculate Tube Preamp output impedance?
  123. What vintage tube books do you own?
  124. re design of a SE tube amplifier
  125. NRI 70 tube chart
  126. Multimeter
  127. fizzy and unstable
  128. Russian spud amp
  129. Silly Question about 807
  130. Help with dared MP-15, please!
  131. tube tester B&k 606 Transformer brun need help
  132. Do tube curves tell most of the story?
  133. Sovtek 6B4-G
  134. Ultimate Amplifier
  135. How quiet is dead quiet?
  136. Max B+ for triode-connected KT88
  137. Acrosound Archive
  138. Hail to Vintage Power Transformer & Choke?
  139. 2a3 parafeed
  140. Kimmel mu stage
  141. 4043c
  142. Impedance quandary
  143. 6L6G Amp recommendations
  144. Beefing up the power supply
  145. System distortion and Single Ended Tube Amps
  146. TB3/1000 is alive ! ("European 833A")
  147. Another tube newb
  148. Decoding another recycled power trans
  149. parafeed plate choke calculation
  150. New to tube building / design - Input requested!
  151. tube preamp with hum??emf
  152. Which tubes for this OPT?
  153. Vacuum tube tester, do you own one?
  154. Ping salas re: LED baising
  155. Model train throttles?
  156. Microphonics that go away by themselves
  157. Variable cathode/plate resistors?
  158. 2 newbe questions
  159. 12B4A + LL1671 Linestage
  160. crate vintage "club 50" schematics needed
  161. Distortion Analysis using an Oscilloscope
  162. Western Electric 'Harmonic Equalizer'
  163. Tube Newb Mc Intosh questions.
  164. AH NJoe TJOEB, valve compatibility issue
  165. Tubes: test as New? translation please
  166. new s5 tube amp kit
  167. Stereo BusBar OK?
  168. Fi Primer 807
  169. Calculating power output in the design stage?
  170. Overdriving the grid of a triode
  171. Newb Questions RE: HS caps & B+ Bias
  172. mercury vapor... i love it!!!
  173. Interstage Couple 300B 811-3 SE amp
  174. PCB Trace Clearance for High Voltage
  175. youtube - tubes!
  176. Noob to the Leak ST20
  177. Unconditional stability, phase shift and feedback
  178. An almost DIY 6DJ8 Linestage
  179. Is Acrosound T-330 really good?
  180. My 1st amp just came to life......pics
  181. Russian tube power amp repair
  182. Unity coupled circuit amplifier.
  183. info about lectron JH50
  184. G.E. 6CA7/EL34 - any good?
  185. black face champ tubes
  186. SS Preamp and Tube Poweramp
  187. Values for OTL totem pole (cathode followers)
  188. 12au7 preamp will not work
  189. A Slew of Beginer Tube Questions
  190. calculating b+ voltage drop, decoupling?
  191. Another SET 2A3 in the world
  192. Help needed with Lectron JH 50 Amp
  193. Audio Note M2 regulator schematic
  194. 300b
  195. Three Simple Questions!!
  196. Edcor Transformers
  197. LTP with CCS - IM Distortion
  198. Strange 45 behaviour - help
  199. I have $250 to spend..what amp should I build?
  200. CCs plate load for mu follower 6sn7
  201. Best use of S-265 opt?
  202. what would be a reasonable price to pay for this tube ?
  203. Distortion Neutralizer for Odd Harmonics
  204. 6H13C preamp
  205. Testing tube for noise
  206. Optimal Umbilical Runs and Connections
  207. Little Dot MKIII, faulty driver tube, GE5654 alternative in the UK?
  208. Film capacitors for decoupling
  209. Non-simultaneous Pentode anode/G2 turn-on
  210. ArnoldC's IT coupled 300B amplifier
  211. Ultralinear pse
  212. Using 0D3's for DC regulation in Aikido
  213. ECC40 preamp
  214. Newbie PS questions
  215. Preliminary 12AX7 guitar preamp
  216. Another cap replacement: uF changes..
  217. parallel EL84 transconductance amp
  218. Quad II Modified by Glenn Croft
  219. Wanted:Power transformers for Welborne DRD 300B amp
  220. Just finished testing my first 832A amp
  221. Russian Transformer cores
  222. Suitable diagram so I can use 4x Telsa RD 200B and 8x Tungsram RG 250/3000
  223. 15E and plate curves
  224. Replacing 6N1P' s with 6922s or 7308s
  225. the "cheapo"
  226. OPT Quality Factors?
  227. 50CA10 pushpull amp
  228. New Hammonds?
  229. Welborne Terraplane Amp-PS10 HV Regulated PS Problems
  230. Voltage Gain Confusion!!
  231. is this ok to build???
  232. PSUD2 help needed
  233. It's raining 10M45's!
  234. Grid Leak Bias on small signal pentodes.
  235. Equalizing + & - output voltage?
  236. Help with ECF80 spice model
  237. Would a Williamson sound better with a CCS tail in the driver?
  238. low ac voltage question
  239. Aikido/SMPS/SKA SS
  240. values of ground(?) coupling caps in Aikido
  241. Please explain grid stoppers..
  242. Psud2 Help
  243. Appropriate Iron for 211 Triode SE
  244. does anyone know the resistance of a hammond 300bx transformer
  245. Help with Aikido B+ Bias layout
  246. 12v 6BF7 preamp design tested
  247. power supply PLEASE HELP
  248. power supply PLEASE HELP
  249. power supply PLEASE HELP
  250. tube amp

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