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  1. tri-amping question (s)
  2. Unity coupled power stage
  3. Acquired A Bunch Of Tubes
  4. Understanding load lines
  5. what would happen if.........?
  6. Testing valves/tubes
  7. 300b socket
  8. Vertical vs. Horizontal does it matter?
  9. Layout thoughts hmm....
  10. ID request, is this a pre?
  11. Anyone got any info on the Tippatone 500 watt amps?
  12. SMPS for Filaments?
  13. Using 6n6pi Push and Pull
  14. Optimum Tube Temperature
  15. Chassis
  16. 5670
  17. will this spice works in real word?
  18. An amplifier for Burning Man
  19. 12AT7,12AU7 Ultra linear cascode
  20. El Cheapo Grande
  21. EL84 Unused pins safe to connect?
  22. 6BQ5/EL84 tube buffer questions
  23. How much power do I need?
  24. Tube buffer/preamp. Where to place voltage divider?
  25. Schematic wanted for VTL Preamp "Maximal"
  26. modified GEC 88-50
  27. Zenith 7B31 Help
  28. Do swingers always buzz when they swing?
  29. 6at6 tube? What can i use it for?
  30. Sovtek 6550WA?
  31. how to make a tube gyrator eq?
  32. Transformer needed or "solid state guy needs help from tube guys"
  33. Differential input, SET output
  34. FFT of PSUD2 output?
  35. Differential push-pull design question
  36. Any EF184 users?
  37. 30P1S - How to use them?
  38. st-70 as good as it gets?
  39. Subbing in a TVC - input load Q
  40. Chinese tubes, new ones or relabeled?
  41. 6AV6 => 12AX7 question
  42. crate vintage club 50 2x12 keeps blowing preamp tubes
  43. 845 & 300b tubes
  44. Sourcing sockets and plugs for power supply umbilicals
  45. Sub mini history question ...
  46. 6DX8 Amp for Headphones and Low Volume Needs
  47. Surplus Voltage Solution
  48. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  49. RCA mystery tube help
  50. Breadboarding/Prototyping - How to and Tips/Tricks
  51. Sub-Miniature Tubes - Low Voltage
  52. True direct-coupled PP amp
  53. "Radical" twist on an all DHT phonostage
  54. input tubes for 300b
  55. JE Labs simple 2a3 filiment tranny, 1 or 2?
  56. ebay Valve Preamps boards for 18 !
  57. Smoothing caps
  58. Spud issues - a little help, please
  59. GLY513 in PS of Simple SE / PP and OTL
  60. Has anyone here built something with this super triode?
  61. What is this part in old radio?
  62. Has anyone done anything with a 5977 sub-mini
  63. Driving EQ from kathode resistor
  64. Understanding CCS vs CVS
  65. Can you believe this!
  66. help with my humming valve amp
  67. Picking tubes for SimpleSE-ish amplifier
  68. 6gk5/ECC88 Phono any comments.
  69. Meng Yue X1 6P1 amp (NOT the mini)
  70. Basic HiFi Tube Amp Layout? Please?
  71. stupid switch question
  72. Max Current of James JS-6123HS Transformer
  73. How do you determine a driver stage?
  74. SUPER cheap nos tubes if you live in california.
  75. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  76. a good tube tester?
  77. Can't get adjustable reg to work
  78. 9 volt tube preamp.
  79. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  80. Equivalent to IXCP10M45S?
  81. Looking for non-DRD 300B using D3a as driver
  82. Akai M8 rebuild/restore/will-this-work?
  83. space charge 12fx8 amp or preamp schematic?
  84. Help with setup to trace UL curves
  85. My KT88 Williamson Amp Build
  86. UV 203A any good for audio ?
  87. What gives with this square wave?
  88. bottlehead paramour PT
  89. DC filament supply without electrolytic(s)?
  90. Looking for R Core power trafo and choke
  91. PP tube amp for bi-amping : above 400 hz
  92. 6N6P question
  93. Integrated valve amplifier : to buy or to build
  94. Lookin for an ST-70-like project
  95. Formula for Zout of diff pair
  96. 6SL7 and Crossovers
  97. Meng Yue: EL34 or 6P1?
  98. Power Transformers and chokes
  99. nos amperex authentic? label doesn't rub off
  100. Software analysis using tube analog circuit Audio Note Kit 1
  101. Webster Amps,Racine Wis.
  102. Help figuring out resistor values
  103. Small (Novel) Tube Rectifiers?
  104. Conrad Johnson ART preamp question.
  105. pd510
  106. i want to build 3D21WB tube PP amp
  107. How to choose an optimal load line for a cathode follwer buffer?
  108. removing sound controlls...
  109. Pentode cathode follower output impedance
  110. Telematic KC401
  111. ebay, 7c kit, worth it?
  112. Mullard 5-10 for guitar use?
  113. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  114. Olson AM-158
  115. Check out my KT88 curves
  116. Just another /\|OOB to Tubes....Need Schem Help
  117. Problem with 832A PP amp
  118. Marantz 8b power transformer
  119. New SET Project
  120. Magnavox Model #OFMC26 Tube Stereo
  121. Balancing Servo
  122. Akai M8 Modding Service Required
  123. 12AX7 basics, some questions on wiring
  124. Hickok Model 600A
  125. Valve for Marshall AVT275 amp
  126. Tube Shield
  127. Choosing an output transformer
  128. Lost in Translation - DIY Japan
  129. Ebay KT88
  130. Filament voltages - an idle curiosity
  131. Project caused by need
  132. PSU issues, advice needed.
  133. Tubelab SE Driver Bias Help
  134. Question about cathode voltage
  135. NOS/NIB tubes what does it mean?
  136. Help to identify transformers
  137. Guitar amp schematic for PPP EL84
  138. DIY tube amp power supply
  139. Socket Saver
  140. Need some tube help!
  141. Need Help Biasing TRV-M300SE Amps
  142. Will this supply work?
  143. First foray into SET, design for your comment
  144. Help understanding a few Ohm's law calculations
  145. Hum in left channer - rogers cadet 3
  146. Need help on understanding AudioResearch like output stage
  147. Help finding 2A3 integrated 2 stage design
  148. 75 / 2A6 Spice Model?
  149. Vacuum Tube DAC
  150. Need help wiring CT transformer
  151. What is this component in my tube amp?
  152. What type of amp should I make with this? Schematic help also needed
  153. 6418 tube preamplifier - Oatley Electronics
  154. Black out coused demage in tube output stage
  155. Need help adding a master volume, and some troubleshooting ...
  156. Other uses for your 807's
  157. Ballantyne output Iron
  158. Power Trafo & Choke headroom
  159. Bare R Cores and bobbins, where???
  160. Plate chokes
  161. Has anyone done anything with the 6112 tube?
  162. el84 amp advice
  163. About to be scammed - bigtime
  164. Dynaco PAS3 -- New Cap board installed
  165. Throw it on the heap... SSE
  166. Loose Tube Bases
  167. 12E1 Triode PP, Any Suggestion?
  168. dac output stage with 5687 pp
  169. Help needed with my Epi Valve Jr
  170. Baby Tube Subwoofer Amp help wanted
  171. 12BH7 and the Simple SE?
  172. "The Bursar" Push-Pull Amplifier
  173. Needed - Advice on tubelab Simple SE build
  174. Oil filled caps - how are they made? DIY caps?
  175. EL34 schematic question
  176. Newb B9A question
  177. 6889 in the Simple SE - misc observations
  178. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  179. 01A tube amp Schematic???
  180. Tubelab's own forum
  181. Are there elegant ways to prevent huge power-on plops?
  182. New EL84 Push-Pull Monoblock
  183. Just to laugh...
  184. QUAD II Stereo Set Up
  185. hammond ao68/7591 question
  186. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  187. How to run a square wave test on an OPT??
  188. Vanderveen 73 Watt valve amplifier PR20HE-S2
  189. 6LU8 Spud - Request for comments
  190. Increasing Output Power for the Engineer's Amplifier
  191. Amperex
  192. A Single Ended presentation
  193. Single-endet Stereo Amp KT88, 6L6, 6P3S
  194. My new 6H30 pre
  195. amplifier bias
  196. Distortion measurements on Meng 6P1
  197. What's wrong with SE Cad?
  198. Observations
  199. p2p aikido phono finished!
  200. 6AC10 tubes
  201. Tricked On Ebay!
  202. Last newbe queston for today, shielding
  203. Pot actoss the filaments
  204. How to adjust summetry?
  205. Tube swap THD
  206. Yarland 34A - Crunch sound, now not the same, any ideas?
  207. Amp SE using F2a tube
  208. WEST-CAP, How about sonic reputation
  209. New 300B JEL/Walton Builder's thread
  210. The worlds least efficient amplifier
  211. Shuguang 6L6GCR and 6550 - Your Experience Please
  212. Bogen CHB-35 - guitar tube amp conversion (another)
  213. Help me identify these Caps! (hamfest find)
  214. nM scale Valves
  215. Orientation of E-I core OPT and toroidal power transformer
  216. Baldwin Iron
  217. Carver super 7
  218. Question:disadvantages for using a SE OPT on parafeed?
  219. CF after gain stage
  220. New to Tubes, just bought first tube amp
  221. Sonic Frontiers SFP-1 mods?
  222. AES tube brand mixing..
  223. Hum with EL84 Push-Pull
  224. Low Voltage Tube Preamplifier
  225. 27 driving 2A3/45/ or 300B
  226. Tube pre-amp for a vehicle?
  227. Meng Yue Mini schematic?
  228. Do you know this guy?
  229. Triode Pentode combo tubes
  230. M8136 M8137 Mullard
  231. suppo with vinyl?
  232. small binding post for TT ground
  233. 27 Filaments DC in series
  234. Music Angel KT88 hard wired
  235. Nice! First CCS.
  236. bizarre bias, ST-70 experts step inside
  237. hammond power tx 200series update
  238. Volts D.C. panel meter for B+
  239. What is the best tube amp??
  240. 6GM8 Hickok test settings?
  241. NASA space-age tube for audio use
  242. trouble matching line level to guitar amp input level...any help?
  243. ECL86/6GW8 Console opinions
  244. Bad tubes wanted for tester testing
  245. 7868 tube biasing and output trans protection
  246. second build, recommendations , thoughts
  247. Changing Electra-Print DRD45
  248. ruTubes.com. Anyone dealt with them?
  249. output transformer manufacturer
  250. no resistor values........

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