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  1. Chassis
  2. 5670
  3. will this spice works in real word?
  4. An amplifier for Burning Man
  5. 12AT7,12AU7 Ultra linear cascode
  6. El Cheapo Grande
  7. EL84 Unused pins safe to connect?
  8. 6BQ5/EL84 tube buffer questions
  9. How much power do I need?
  10. Tube buffer/preamp. Where to place voltage divider?
  11. Schematic wanted for VTL Preamp "Maximal"
  12. modified GEC 88-50
  13. Zenith 7B31 Help
  14. Do swingers always buzz when they swing?
  15. 6at6 tube? What can i use it for?
  16. Sovtek 6550WA?
  17. how to make a tube gyrator eq?
  18. Transformer needed or "solid state guy needs help from tube guys"
  19. Differential input, SET output
  20. FFT of PSUD2 output?
  21. Differential push-pull design question
  22. Any EF184 users?
  23. 30P1S - How to use them?
  24. st-70 as good as it gets?
  25. Subbing in a TVC - input load Q
  26. Chinese tubes, new ones or relabeled?
  27. 6AV6 => 12AX7 question
  28. crate vintage club 50 2x12 keeps blowing preamp tubes
  29. 845 & 300b tubes
  30. Sourcing sockets and plugs for power supply umbilicals
  31. Sub mini history question ...
  32. 6DX8 Amp for Headphones and Low Volume Needs
  33. Surplus Voltage Solution
  34. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  35. RCA mystery tube help
  36. Breadboarding/Prototyping - How to and Tips/Tricks
  37. Sub-Miniature Tubes - Low Voltage
  38. True direct-coupled PP amp
  39. "Radical" twist on an all DHT phonostage
  40. input tubes for 300b
  41. JE Labs simple 2a3 filiment tranny, 1 or 2?
  42. ebay Valve Preamps boards for 18 !
  43. Smoothing caps
  44. Spud issues - a little help, please
  45. GLY513 in PS of Simple SE / PP and OTL
  46. Has anyone here built something with this super triode?
  47. What is this part in old radio?
  48. Has anyone done anything with a 5977 sub-mini
  49. Driving EQ from kathode resistor
  50. Understanding CCS vs CVS
  51. Can you believe this!
  52. help with my humming valve amp
  53. Picking tubes for SimpleSE-ish amplifier
  54. 6gk5/ECC88 Phono any comments.
  55. Meng Yue X1 6P1 amp (NOT the mini)
  56. Basic HiFi Tube Amp Layout? Please?
  57. stupid switch question
  58. Max Current of James JS-6123HS Transformer
  59. How do you determine a driver stage?
  60. SUPER cheap nos tubes if you live in california.
  61. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  62. a good tube tester?
  63. Can't get adjustable reg to work
  64. 9 volt tube preamp.
  65. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  66. Equivalent to IXCP10M45S?
  67. Looking for non-DRD 300B using D3a as driver
  68. Akai M8 rebuild/restore/will-this-work?
  69. space charge 12fx8 amp or preamp schematic?
  70. Help with setup to trace UL curves
  71. My KT88 Williamson Amp Build
  72. UV 203A any good for audio ?
  73. What gives with this square wave?
  74. bottlehead paramour PT
  75. DC filament supply without electrolytic(s)?
  76. Looking for R Core power trafo and choke
  77. PP tube amp for bi-amping : above 400 hz
  78. 6N6P question
  79. Integrated valve amplifier : to buy or to build
  80. Lookin for an ST-70-like project
  81. Formula for Zout of diff pair
  82. 6SL7 and Crossovers
  83. Meng Yue: EL34 or 6P1?
  84. Power Transformers and chokes
  85. nos amperex authentic? label doesn't rub off
  86. Software analysis using tube analog circuit Audio Note Kit 1
  87. Webster Amps,Racine Wis.
  88. Help figuring out resistor values
  89. Small (Novel) Tube Rectifiers?
  90. Conrad Johnson ART preamp question.
  91. pd510
  92. i want to build 3D21WB tube PP amp
  93. How to choose an optimal load line for a cathode follwer buffer?
  94. removing sound controlls...
  95. Pentode cathode follower output impedance
  96. Telematic KC401
  97. ebay, 7c kit, worth it?
  98. Mullard 5-10 for guitar use?
  99. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  100. Olson AM-158
  101. Check out my KT88 curves
  102. Just another /\|OOB to Tubes....Need Schem Help
  103. Problem with 832A PP amp
  104. Marantz 8b power transformer
  105. New SET Project
  106. Magnavox Model #OFMC26 Tube Stereo
  107. Balancing Servo
  108. Akai M8 Modding Service Required
  109. 12AX7 basics, some questions on wiring
  110. Hickok Model 600A
  111. Valve for Marshall AVT275 amp
  112. Tube Shield
  113. Choosing an output transformer
  114. Lost in Translation - DIY Japan
  115. Ebay KT88
  116. Filament voltages - an idle curiosity
  117. Project caused by need
  118. PSU issues, advice needed.
  119. Tubelab SE Driver Bias Help
  120. Question about cathode voltage
  121. NOS/NIB tubes what does it mean?
  122. Help to identify transformers
  123. Guitar amp schematic for PPP EL84
  124. DIY tube amp power supply
  125. Socket Saver
  126. Need some tube help!
  127. Need Help Biasing TRV-M300SE Amps
  128. Will this supply work?
  129. First foray into SET, design for your comment
  130. Help understanding a few Ohm's law calculations
  131. Hum in left channer - rogers cadet 3
  132. Need help on understanding AudioResearch like output stage
  133. Help finding 2A3 integrated 2 stage design
  134. 75 / 2A6 Spice Model?
  135. Vacuum Tube DAC
  136. Need help wiring CT transformer
  137. What is this component in my tube amp?
  138. What type of amp should I make with this? Schematic help also needed
  139. 6418 tube preamplifier - Oatley Electronics
  140. Black out coused demage in tube output stage
  141. Need help adding a master volume, and some troubleshooting ...
  142. Other uses for your 807's
  143. Ballantyne output Iron
  144. Power Trafo & Choke headroom
  145. Bare R Cores and bobbins, where???
  146. Plate chokes
  147. Has anyone done anything with the 6112 tube?
  148. el84 amp advice
  149. About to be scammed - bigtime
  150. Dynaco PAS3 -- New Cap board installed
  151. Throw it on the heap... SSE
  152. Loose Tube Bases
  153. 12E1 Triode PP, Any Suggestion?
  154. dac output stage with 5687 pp
  155. Help needed with my Epi Valve Jr
  156. Baby Tube Subwoofer Amp help wanted
  157. 12BH7 and the Simple SE?
  158. "The Bursar" Push-Pull Amplifier
  159. Needed - Advice on tubelab Simple SE build
  160. Oil filled caps - how are they made? DIY caps?
  161. EL34 schematic question
  162. Newb B9A question
  163. 6889 in the Simple SE - misc observations
  164. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  165. 01A tube amp Schematic???
  166. Tubelab's own forum
  167. Are there elegant ways to prevent huge power-on plops?
  168. New EL84 Push-Pull Monoblock
  169. Just to laugh...
  170. QUAD II Stereo Set Up
  171. hammond ao68/7591 question
  172. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  173. How to run a square wave test on an OPT??
  174. Vanderveen 73 Watt valve amplifier PR20HE-S2
  175. 6LU8 Spud - Request for comments
  176. Increasing Output Power for the Engineer's Amplifier
  177. Amperex
  178. A Single Ended presentation
  179. Single-endet Stereo Amp KT88, 6L6, 6P3S
  180. My new 6H30 pre
  181. amplifier bias
  182. Distortion measurements on Meng 6P1
  183. What's wrong with SE Cad?
  184. Observations
  185. p2p aikido phono finished!
  186. 6AC10 tubes
  187. Tricked On Ebay!
  188. Last newbe queston for today, shielding
  189. Pot actoss the filaments
  190. How to adjust summetry?
  191. Tube swap THD
  192. Yarland 34A - Crunch sound, now not the same, any ideas?
  193. Amp SE using F2a tube
  194. WEST-CAP, How about sonic reputation
  195. New 300B JEL/Walton Builder's thread
  196. The worlds least efficient amplifier
  197. Shuguang 6L6GCR and 6550 - Your Experience Please
  198. Bogen CHB-35 - guitar tube amp conversion (another)
  199. Help me identify these Caps! (hamfest find)
  200. nM scale Valves
  201. Orientation of E-I core OPT and toroidal power transformer
  202. Baldwin Iron
  203. Carver super 7
  204. Question:disadvantages for using a SE OPT on parafeed?
  205. CF after gain stage
  206. New to Tubes, just bought first tube amp
  207. Sonic Frontiers SFP-1 mods?
  208. AES tube brand mixing..
  209. Hum with EL84 Push-Pull
  210. Low Voltage Tube Preamplifier
  211. 27 driving 2A3/45/ or 300B
  212. Tube pre-amp for a vehicle?
  213. Meng Yue Mini schematic?
  214. Do you know this guy?
  215. Triode Pentode combo tubes
  216. M8136 M8137 Mullard
  217. suppo with vinyl?
  218. small binding post for TT ground
  219. 27 Filaments DC in series
  220. Music Angel KT88 hard wired
  221. Nice! First CCS.
  222. bizarre bias, ST-70 experts step inside
  223. hammond power tx 200series update
  224. Volts D.C. panel meter for B+
  225. What is the best tube amp??
  226. 6GM8 Hickok test settings?
  227. NASA space-age tube for audio use
  228. trouble matching line level to guitar amp input level...any help?
  229. ECL86/6GW8 Console opinions
  230. Bad tubes wanted for tester testing
  231. 7868 tube biasing and output trans protection
  232. second build, recommendations , thoughts
  233. Changing Electra-Print DRD45
  234. ruTubes.com. Anyone dealt with them?
  235. output transformer manufacturer
  236. no resistor values........
  237. Gz34 + otl 6n23p
  238. Jukebox Iron
  239. converting tube rectifier to solid state rectifier.
  240. Help please, Jolida 202a hum.
  241. Amperex Bugle Boy tube???
  242. What's a reasonable amount of power-supply ripple?
  243. Vintage tube amp Aux In To CD In
  244. mounting TO-220 devices
  245. My first valve amp - help appreciated :)
  246. Plasma ball in tube
  247. Nagra's engineers at work.
  248. what just happened? Plate glowing
  249. "Mullard 5-20 KT88 PP blocks!
  250. CCS transistor choices

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