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  1. 12AY7 circuit?
  2. E810F: RIAA circuits
  3. need EL519/6KG6 spice 3f4 model
  4. enough gain for James tone stack
  5. Anyone recognise this amp?
  6. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  7. matched tubes?
  8. List of current production types
  9. Soundcard greater than 24-bit
  10. Replacing Valves Leak Stereo 20
  11. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  12. I Damaged my Amp?
  13. EL84 Triode PP Design
  14. pentode with grid AND cathode tied to gnd?
  15. What d'you put in the PSU chassis, and what in the circuit chassis?
  16. a real no-brainer question about 1/2 tubes
  17. 813 power supply question
  18. ESR of motor-run caps?
  19. OPT-102 - data? (Audio Electronic Supply)
  20. Help me out with a circuit design
  21. Partial Feedback EL84PP - Not quite as expected (yet)
  22. Preamp suggestions - Help a hack have some fun
  23. 6GK6 Ultralinear
  24. Vacuum Rectifier Question
  25. LM4702 meets up with 6550's
  26. 6bx7gt envelope temperature
  27. Counterpoint SA 3 schematic
  28. Tubes measured in microhms = mA..?
  29. Checking ARC SP9
  30. 6J11 Datasheet anyone?
  31. Help cleaning tube pins
  32. Best way to use a PAIR of 6SL7ís to drive a 300B?
  33. preamp cathode bypass cap benefits
  34. EF184 or (EC)L82 radio amplifier?!
  35. 5687 for Aikido
  36. Pre Amplifier Out Sockets
  37. Recommended output valves for this transformer
  38. power tubes and learning SET design
  39. Phono pre-amp Question
  40. TVA-1 cathode resistor value
  41. need power tranformer ideas
  42. Cary Cad-300b Se
  43. newbie question about 7591 cathode bias
  44. 5814 Raytheon Windmill Getter late 50's
  45. Fundamentals of tube amp design
  46. 7868 amp sounds good but low volume
  47. How does class AB2 sound?
  48. 6sn7 brand
  49. Might speaker filters be in the wrong place?
  50. Problem: attenuation after cathodyne and CF
  51. LED bias and differential pairs
  52. Kimmel Mu stage summary sheet
  53. Tube buffer for car audio
  54. Practical PSE thinking.
  55. I need help on a Simple guitar/vocal pre amp.
  56. Kr300bxls
  57. Biggest noval dual triode?
  58. 2 amps with 1 set of speakers?
  59. tubeamp kits
  60. Tripletone amplifier
  61. Tube curves tracer
  62. Help with Shunt Regulation and Noise
  63. Plug 'N' Play B+ time delay
  64. Hot Rod "Bronco" project/TRANSFORMERS
  65. Precision PA conversion help needed
  66. Caps in Voltage divider Heater Bias ?
  67. Looking for Melos triode 200+ schematics
  68. ETF07 brief summary
  69. No response from Vacuumtubes.net
  70. dynakit pam selenium rectifier replacement help
  71. Adjustable Fixed Grid Bias
  72. Best output transformer for 300B
  73. Transconductance of E88CC,6922,6N23P
  74. Finding The Root Of The Problem
  75. Beard P35
  76. purple tube heaters...
  77. Which 12AU7 and 6V6GTs?
  78. 6f2 - 6n1???
  79. Help with Schematic
  80. Class A Push Pull with 6L6GC
  81. EL84 driver tube, with less than 5mA current
  82. Sleeping Sickness
  83. 50L6-GT or 6W6-GT
  84. Help ID this transformer
  85. Tube dropping - Help?
  86. For anyone running a K-502 with a FR driver
  87. Active crossover
  88. General guidence building guitar amp
  89. Pounds, Shillings and Pence
  90. Trying to learn something, against my better judgment
  91. Battery grid bias to fixed bias in Toccato?
  92. PLS take a look!
  93. Use for 5K:8 PP OPT?
  94. Low amp Impedance input and high dac output
  95. The Magic of a Name
  96. which edition of Morgan Jones' books?
  97. altec 1530 schematic
  98. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  99. 6HB6/6HA& Spud?
  100. schematic diagram golden tube se40 for repair! help
  101. Reliable B+ PSU for pro preamp
  102. Help me find some info please
  103. Some tube radios
  104. Electro Harmonix 300b...shorting problems?
  105. Aikido linestage tube choice? (again)
  106. Teeco 1220??
  107. magic smoke pilot aa903
  108. PP bias balance pot
  109. Jolida JD 502A
  110. Cathode Bias for SimpleSE
  111. TRemPre malfunctioning
  112. HV benchtop power supply, help on opamp setup
  113. Transcendar Output Transformers ST70
  114. Unofficial Tube Market Survey
  115. testing 6DJ8s
  116. 6L6 AB PPP stage; does it make sense?
  117. 7868 tubes - replace with 6L6's?
  118. Vintage Amp...too much gain on CD
  119. ETF07 - Last possibility to join
  120. Tube 7403
  121. New SET: JE labs simple 45 or tubelab SE?
  122. Melos triode and computer as source: BUZZ BUZZ BUZZ
  123. 6SN7 Cascoded CCS
  124. 7591 se tube amp?
  125. Sovtek 5881WXT/Quad II
  126. Adding more capacitors to an AMP
  127. Tube Characteristics
  128. Tube guilt
  129. KT88 or 6550
  130. Single ended OTL Transcendent
  131. K-12 kit, buzz in R channel
  132. Hickok 752A repair
  133. my new tube line stage
  134. Audio Innovations Series 200 Phono Stage
  135. is it correct to calculate OTL?
  136. Late Halloween Cartoon
  137. on/off/on switch for bright/bold?
  138. Another CCS for tubes/valves: PCBs
  139. Customdaveus
  140. newbie questions on Bogen M330A repair
  141. crackling sound from one channel
  142. Cosmos Valve amplifier
  143. The Vacuum Tube Truth
  144. Inverted Triode SE OTL
  145. Negative feedback problems on ECL82 SE amp.
  146. Cheap tester?
  147. Anyone familiar with Hyuger HK-300BS kit from Hino Audio?
  148. Fisher SA 1000
  149. Hot Hot Hot
  150. Dynaco PAS-4 manual
  151. amplifier pp with 6p3s
  152. rusty chassis - what to do?
  153. Use 9 pin Aikido PCB kit or buy 8 pin ?
  154. Where to find data sheets?
  155. how to reverse signal for Common Cathode circuit
  156. Audio note M2 power supply resistor value
  157. Are 6DZ7 to Rare to be fun?
  158. 7868 substitutes
  159. Millet Hybrid - stacked buffers
  160. Repairing an old tube raido
  161. 3 way ultimate DIY phonostage match!
  162. wanted sv572-3
  163. General Aikido power supply question
  164. question about beefing up my monoblocks
  165. multichannel tube amp
  166. Who can explain this FFT graph to me
  167. Equivalent Noise Resistance
  168. Any Tube heads near Central coast NSW
  169. Question
  170. Screen Supply For PP Amp
  171. Datasheets: RC coupled amp VS. typical characteristics
  172. How to calculate Tube Preamp output impedance?
  173. What vintage tube books do you own?
  174. re design of a SE tube amplifier
  175. NRI 70 tube chart
  176. Multimeter
  177. fizzy and unstable
  178. Russian spud amp
  179. Silly Question about 807
  180. Help with dared MP-15, please!
  181. tube tester B&k 606 Transformer brun need help
  182. Do tube curves tell most of the story?
  183. Sovtek 6B4-G
  184. Ultimate Amplifier
  185. How quiet is dead quiet?
  186. Max B+ for triode-connected KT88
  187. Acrosound Archive
  188. Hail to Vintage Power Transformer & Choke?
  189. 2a3 parafeed
  190. Kimmel mu stage
  191. 4043c
  192. Impedance quandary
  193. 6L6G Amp recommendations
  194. Beefing up the power supply
  195. System distortion and Single Ended Tube Amps
  196. TB3/1000 is alive ! ("European 833A")
  197. Another tube newb
  198. Decoding another recycled power trans
  199. parafeed plate choke calculation
  200. New to tube building / design - Input requested!
  201. tube preamp with hum??emf
  202. Which tubes for this OPT?
  203. Vacuum tube tester, do you own one?
  204. Ping salas re: LED baising
  205. Model train throttles?
  206. Microphonics that go away by themselves
  207. Variable cathode/plate resistors?
  208. 2 newbe questions
  209. 12B4A + LL1671 Linestage
  210. crate vintage "club 50" schematics needed
  211. Distortion Analysis using an Oscilloscope
  212. Western Electric 'Harmonic Equalizer'
  213. Tube Newb Mc Intosh questions.
  214. AH NJoe TJOEB, valve compatibility issue
  215. Tubes: test as New? translation please
  216. new s5 tube amp kit
  217. Stereo BusBar OK?
  218. Fi Primer 807
  219. Calculating power output in the design stage?
  220. Overdriving the grid of a triode
  221. Newb Questions RE: HS caps & B+ Bias
  222. mercury vapor... i love it!!!
  223. Interstage Couple 300B 811-3 SE amp
  224. PCB Trace Clearance for High Voltage
  225. youtube - tubes!
  226. Noob to the Leak ST20
  227. Unconditional stability, phase shift and feedback
  228. An almost DIY 6DJ8 Linestage
  229. Is Acrosound T-330 really good?
  230. My 1st amp just came to life......pics
  231. Russian tube power amp repair
  232. Unity coupled circuit amplifier.
  233. info about lectron JH50
  234. G.E. 6CA7/EL34 - any good?
  235. black face champ tubes
  236. SS Preamp and Tube Poweramp
  237. Values for OTL totem pole (cathode followers)
  238. 12au7 preamp will not work
  239. A Slew of Beginer Tube Questions
  240. calculating b+ voltage drop, decoupling?
  241. Another SET 2A3 in the world
  242. Help needed with Lectron JH 50 Amp
  243. Audio Note M2 regulator schematic
  244. 300b
  245. Three Simple Questions!!
  246. Edcor Transformers
  247. LTP with CCS - IM Distortion
  248. Strange 45 behaviour - help
  249. I have $250 to spend..what amp should I build?
  250. CCs plate load for mu follower 6sn7

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