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  1. Look what Santa brought!
  2. Soft Start for Tubes
  3. Need help to check out this preamp schematic.
  4. What dimensions for perforated AL sheet?
  5. NC pins on submin tubes
  6. Cheap alternative to EF86
  7. MOSFET follower driver oscillation
  8. Fender "Twin Reverb Amp" has no output.
  9. Hi-Fi system build
  10. Car Tube Amp
  11. Tube Identification
  12. Supratek schematics?
  13. Choice of OTL output capacitors
  14. Feedback scheme.
  15. Christmas Eve
  16. Best tubes for Scott 222
  17. HH Scott 222 speaker recommendations and upgrades
  18. mixing coupling cap types
  19. Transformer chassis layout
  20. SimpleSE / Edcor CXSE OPT
  21. Star ground help
  22. What causes my 0D3 to extinguish?
  23. converting UL in triode
  24. Beyer Dynamic BV35570
  25. Lundahl LL1527 phase-splitter
  26. Morgan Jones HPA ...strange startup behaviour
  27. Best Sounding Phono Input Tube
  28. We417+300b
  29. class-A PP amplifier with 2x 845 question
  30. Kismet-300B-amp
  31. Will differential share the same THD characteristics as SE, if same triode is used?
  32. The biggest bunch of tubes ever seen
  33. DHT AC Filament Noise
  34. augmented cathode follower?
  35. Tube amp find in old theater
  36. Is there a better amp kit????
  37. figuring amplification factor of a tube
  38. SE 6l6
  39. Need help
  40. Dynaco (Dynaclone) PA060 transformer
  41. Switching power supply for tube filaments possible???
  42. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  43. DN2540/2535 fun and games
  44. 6P3S SE amp requesting
  45. Newbie needs Magnavox console troubleshooting tips
  46. 6bBYGA x2 as full-wave rectifier?
  47. Digital volume/tone control in Tube amps
  48. plotting load-line for OTL amp?
  49. New SE 6P15P project
  50. New Production Shuguang Type 50 Tubes
  51. Running different tubes
  52. Fairchild 260 rebuild questions
  53. Filament Voltage vs. Hum
  54. drawing a loadline from schematics
  55. Know this tube? 10J12C or 10X12C ...
  56. Precision Fidelity - C7 Mods...help Wanted!
  57. stupid newbie: what is this transformer???
  58. Anyone else having problems with Mercury Magnetics transformers?
  59. EF86-EL84: too much gain!
  60. Balanced Power
  61. GTA 300B SE Mk.II Power Transformer
  62. Tube Shields
  63. Some basic questions about s-5 amp kit mods
  64. Novice Voltage Regulator Question
  65. The Critical Ear
  66. Tube matching service - As found on Craigslist
  67. 6j1 question
  68. Duosonic 40's era record player
  69. 6bl8 el84 nfb question
  70. 6T9 push pull
  71. 12AY7 circuit?
  72. E810F: RIAA circuits
  73. need EL519/6KG6 spice 3f4 model
  74. enough gain for James tone stack
  75. Anyone recognise this amp?
  76. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  77. matched tubes?
  78. List of current production types
  79. Soundcard greater than 24-bit
  80. Replacing Valves Leak Stereo 20
  81. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  82. I Damaged my Amp?
  83. EL84 Triode PP Design
  84. pentode with grid AND cathode tied to gnd?
  85. What d'you put in the PSU chassis, and what in the circuit chassis?
  86. a real no-brainer question about 1/2 tubes
  87. 813 power supply question
  88. ESR of motor-run caps?
  89. OPT-102 - data? (Audio Electronic Supply)
  90. Help me out with a circuit design
  91. Partial Feedback EL84PP - Not quite as expected (yet)
  92. Preamp suggestions - Help a hack have some fun
  93. 6GK6 Ultralinear
  94. Vacuum Rectifier Question
  95. LM4702 meets up with 6550's
  96. 6bx7gt envelope temperature
  97. Counterpoint SA 3 schematic
  98. Tubes measured in microhms = mA..?
  99. Checking ARC SP9
  100. 6J11 Datasheet anyone?
  101. Help cleaning tube pins
  102. Best way to use a PAIR of 6SL7ís to drive a 300B?
  103. preamp cathode bypass cap benefits
  104. EF184 or (EC)L82 radio amplifier?!
  105. 5687 for Aikido
  106. Pre Amplifier Out Sockets
  107. Recommended output valves for this transformer
  108. power tubes and learning SET design
  109. Phono pre-amp Question
  110. TVA-1 cathode resistor value
  111. need power tranformer ideas
  112. Cary Cad-300b Se
  113. newbie question about 7591 cathode bias
  114. 5814 Raytheon Windmill Getter late 50's
  115. Fundamentals of tube amp design
  116. 7868 amp sounds good but low volume
  117. How does class AB2 sound?
  118. 6sn7 brand
  119. Might speaker filters be in the wrong place?
  120. Problem: attenuation after cathodyne and CF
  121. LED bias and differential pairs
  122. Kimmel Mu stage summary sheet
  123. Tube buffer for car audio
  124. Practical PSE thinking.
  125. I need help on a Simple guitar/vocal pre amp.
  126. Kr300bxls
  127. Biggest noval dual triode?
  128. 2 amps with 1 set of speakers?
  129. tubeamp kits
  130. Tripletone amplifier
  131. Tube curves tracer
  132. Help with Shunt Regulation and Noise
  133. Plug 'N' Play B+ time delay
  134. Hot Rod "Bronco" project/TRANSFORMERS
  135. Precision PA conversion help needed
  136. Caps in Voltage divider Heater Bias ?
  137. Looking for Melos triode 200+ schematics
  138. ETF07 brief summary
  139. No response from Vacuumtubes.net
  140. dynakit pam selenium rectifier replacement help
  141. Adjustable Fixed Grid Bias
  142. Best output transformer for 300B
  143. Transconductance of E88CC,6922,6N23P
  144. Finding The Root Of The Problem
  145. Beard P35
  146. purple tube heaters...
  147. Which 12AU7 and 6V6GTs?
  148. 6f2 - 6n1???
  149. Help with Schematic
  150. Class A Push Pull with 6L6GC
  151. EL84 driver tube, with less than 5mA current
  152. Sleeping Sickness
  153. 50L6-GT or 6W6-GT
  154. Help ID this transformer
  155. Tube dropping - Help?
  156. For anyone running a K-502 with a FR driver
  157. Active crossover
  158. General guidence building guitar amp
  159. Pounds, Shillings and Pence
  160. Trying to learn something, against my better judgment
  161. Battery grid bias to fixed bias in Toccato?
  162. PLS take a look!
  163. Use for 5K:8 PP OPT?
  164. Low amp Impedance input and high dac output
  165. The Magic of a Name
  166. which edition of Morgan Jones' books?
  167. altec 1530 schematic
  168. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  169. 6HB6/6HA& Spud?
  170. schematic diagram golden tube se40 for repair! help
  171. Reliable B+ PSU for pro preamp
  172. Help me find some info please
  173. Some tube radios
  174. Electro Harmonix 300b...shorting problems?
  175. Aikido linestage tube choice? (again)
  176. Teeco 1220??
  177. magic smoke pilot aa903
  178. PP bias balance pot
  179. Jolida JD 502A
  180. Cathode Bias for SimpleSE
  181. TRemPre malfunctioning
  182. HV benchtop power supply, help on opamp setup
  183. Transcendar Output Transformers ST70
  184. Unofficial Tube Market Survey
  185. testing 6DJ8s
  186. 6L6 AB PPP stage; does it make sense?
  187. 7868 tubes - replace with 6L6's?
  188. Vintage Amp...too much gain on CD
  189. ETF07 - Last possibility to join
  190. Tube 7403
  191. New SET: JE labs simple 45 or tubelab SE?
  192. Melos triode and computer as source: BUZZ BUZZ BUZZ
  193. 6SN7 Cascoded CCS
  194. 7591 se tube amp?
  195. Sovtek 5881WXT/Quad II
  196. Adding more capacitors to an AMP
  197. Tube Characteristics
  198. Tube guilt
  199. KT88 or 6550
  200. Single ended OTL Transcendent
  201. K-12 kit, buzz in R channel
  202. Hickok 752A repair
  203. my new tube line stage
  204. Audio Innovations Series 200 Phono Stage
  205. is it correct to calculate OTL?
  206. Late Halloween Cartoon
  207. on/off/on switch for bright/bold?
  208. Another CCS for tubes/valves: PCBs
  209. Customdaveus
  210. newbie questions on Bogen M330A repair
  211. crackling sound from one channel
  212. Cosmos Valve amplifier
  213. The Vacuum Tube Truth
  214. Inverted Triode SE OTL
  215. Negative feedback problems on ECL82 SE amp.
  216. Cheap tester?
  217. Anyone familiar with Hyuger HK-300BS kit from Hino Audio?
  218. Fisher SA 1000
  219. Hot Hot Hot
  220. Dynaco PAS-4 manual
  221. amplifier pp with 6p3s
  222. rusty chassis - what to do?
  223. Use 9 pin Aikido PCB kit or buy 8 pin ?
  224. Where to find data sheets?
  225. how to reverse signal for Common Cathode circuit
  226. Audio note M2 power supply resistor value
  227. Are 6DZ7 to Rare to be fun?
  228. 7868 substitutes
  229. Millet Hybrid - stacked buffers
  230. Repairing an old tube raido
  231. 3 way ultimate DIY phonostage match!
  232. wanted sv572-3
  233. General Aikido power supply question
  234. question about beefing up my monoblocks
  235. multichannel tube amp
  236. Who can explain this FFT graph to me
  237. Equivalent Noise Resistance
  238. Any Tube heads near Central coast NSW
  239. Question
  240. Screen Supply For PP Amp
  241. Datasheets: RC coupled amp VS. typical characteristics
  242. How to calculate Tube Preamp output impedance?
  243. What vintage tube books do you own?
  244. re design of a SE tube amplifier
  245. NRI 70 tube chart
  246. Multimeter
  247. fizzy and unstable
  248. Russian spud amp
  249. Silly Question about 807
  250. Help with dared MP-15, please!

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