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  1. CCS loaded DHT cathode follower?
  2. Phono stage with LT1028 MC input
  3. New valve int flash over why ?
  4. Sweep tube suggestions
  5. Amp project output problem
  6. 12AX7,6BQ5 PP Amp Search.
  7. Dynaco MkIII preamp/linestage recommendations?
  8. Can someone please check my PCB layout for this preamp?
  9. looking for easy, low cost guitar amp project
  10. UK EBAY - 100W Marshall / Fender Clone Transformer Set
  11. 1KW power - what do you think?
  12. Bottlehead Filament Choke FC-1 for Push-Pull?
  13. Home James! But first, which transformer?
  14. NAD preamp = 6BQ5 Frankenschteen
  15. Wintersweet highvividity driver circuit
  16. Looking for TT11(CV1501) triode mode curve
  17. Amp switching with 4093/4066. How to add indicator LEDs?
  18. Yaqin MC-10L Blown Fuse
  19. 2a3 amp, progress picture
  20. How do I implement an AZ1 rec tube???
  21. Profit margin on used tube amps
  22. 300B sockets (different question)
  23. How can I modify this grommes little jewel amp for guitar.
  24. tri-amping question (s)
  25. Unity coupled power stage
  26. Acquired A Bunch Of Tubes
  27. Understanding load lines
  28. what would happen if.........?
  29. Testing valves/tubes
  30. 300b socket
  31. Vertical vs. Horizontal does it matter?
  32. Layout thoughts hmm....
  33. ID request, is this a pre?
  34. Anyone got any info on the Tippatone 500 watt amps?
  35. SMPS for Filaments?
  36. Using 6n6pi Push and Pull
  37. Optimum Tube Temperature
  38. Chassis
  39. 5670
  40. will this spice works in real word?
  41. An amplifier for Burning Man
  42. 12AT7,12AU7 Ultra linear cascode
  43. El Cheapo Grande
  44. EL84 Unused pins safe to connect?
  45. 6BQ5/EL84 tube buffer questions
  46. How much power do I need?
  47. Tube buffer/preamp. Where to place voltage divider?
  48. Schematic wanted for VTL Preamp "Maximal"
  49. modified GEC 88-50
  50. Zenith 7B31 Help
  51. Do swingers always buzz when they swing?
  52. 6at6 tube? What can i use it for?
  53. Sovtek 6550WA?
  54. how to make a tube gyrator eq?
  55. Transformer needed or "solid state guy needs help from tube guys"
  56. Differential input, SET output
  57. FFT of PSUD2 output?
  58. Differential push-pull design question
  59. Any EF184 users?
  60. 30P1S - How to use them?
  61. st-70 as good as it gets?
  62. Subbing in a TVC - input load Q
  63. Chinese tubes, new ones or relabeled?
  64. 6AV6 => 12AX7 question
  65. crate vintage club 50 2x12 keeps blowing preamp tubes
  66. 845 & 300b tubes
  67. Sourcing sockets and plugs for power supply umbilicals
  68. Sub mini history question ...
  69. 6DX8 Amp for Headphones and Low Volume Needs
  70. Surplus Voltage Solution
  71. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  72. RCA mystery tube help
  73. Breadboarding/Prototyping - How to and Tips/Tricks
  74. Sub-Miniature Tubes - Low Voltage
  75. True direct-coupled PP amp
  76. "Radical" twist on an all DHT phonostage
  77. input tubes for 300b
  78. JE Labs simple 2a3 filiment tranny, 1 or 2?
  79. ebay Valve Preamps boards for 18 !
  80. Smoothing caps
  81. Spud issues - a little help, please
  82. GLY513 in PS of Simple SE / PP and OTL
  83. Has anyone here built something with this super triode?
  84. What is this part in old radio?
  85. Has anyone done anything with a 5977 sub-mini
  86. Driving EQ from kathode resistor
  87. Understanding CCS vs CVS
  88. Can you believe this!
  89. help with my humming valve amp
  90. Picking tubes for SimpleSE-ish amplifier
  91. 6gk5/ECC88 Phono any comments.
  92. Meng Yue X1 6P1 amp (NOT the mini)
  93. Basic HiFi Tube Amp Layout? Please?
  94. stupid switch question
  95. Max Current of James JS-6123HS Transformer
  96. How do you determine a driver stage?
  97. SUPER cheap nos tubes if you live in california.
  98. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  99. a good tube tester?
  100. Can't get adjustable reg to work
  101. 9 volt tube preamp.
  102. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  103. Equivalent to IXCP10M45S?
  104. Looking for non-DRD 300B using D3a as driver
  105. Akai M8 rebuild/restore/will-this-work?
  106. space charge 12fx8 amp or preamp schematic?
  107. Help with setup to trace UL curves
  108. My KT88 Williamson Amp Build
  109. UV 203A any good for audio ?
  110. What gives with this square wave?
  111. bottlehead paramour PT
  112. DC filament supply without electrolytic(s)?
  113. Looking for R Core power trafo and choke
  114. PP tube amp for bi-amping : above 400 hz
  115. 6N6P question
  116. Integrated valve amplifier : to buy or to build
  117. Lookin for an ST-70-like project
  118. Formula for Zout of diff pair
  119. 6SL7 and Crossovers
  120. Meng Yue: EL34 or 6P1?
  121. Power Transformers and chokes
  122. nos amperex authentic? label doesn't rub off
  123. Software analysis using tube analog circuit Audio Note Kit 1
  124. Webster Amps,Racine Wis.
  125. Help figuring out resistor values
  126. Small (Novel) Tube Rectifiers?
  127. Conrad Johnson ART preamp question.
  128. pd510
  129. i want to build 3D21WB tube PP amp
  130. How to choose an optimal load line for a cathode follwer buffer?
  131. removing sound controlls...
  132. Pentode cathode follower output impedance
  133. Telematic KC401
  134. ebay, 7c kit, worth it?
  135. Mullard 5-10 for guitar use?
  136. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  137. Olson AM-158
  138. Check out my KT88 curves
  139. Just another /\|OOB to Tubes....Need Schem Help
  140. Problem with 832A PP amp
  141. Marantz 8b power transformer
  142. New SET Project
  143. Magnavox Model #OFMC26 Tube Stereo
  144. Balancing Servo
  145. Akai M8 Modding Service Required
  146. 12AX7 basics, some questions on wiring
  147. Hickok Model 600A
  148. Valve for Marshall AVT275 amp
  149. Tube Shield
  150. Choosing an output transformer
  151. Lost in Translation - DIY Japan
  152. Ebay KT88
  153. Filament voltages - an idle curiosity
  154. Project caused by need
  155. PSU issues, advice needed.
  156. Tubelab SE Driver Bias Help
  157. Question about cathode voltage
  158. NOS/NIB tubes what does it mean?
  159. Help to identify transformers
  160. Guitar amp schematic for PPP EL84
  161. DIY tube amp power supply
  162. Socket Saver
  163. Need some tube help!
  164. Need Help Biasing TRV-M300SE Amps
  165. Will this supply work?
  166. First foray into SET, design for your comment
  167. Help understanding a few Ohm's law calculations
  168. Hum in left channer - rogers cadet 3
  169. Need help on understanding AudioResearch like output stage
  170. Help finding 2A3 integrated 2 stage design
  171. 75 / 2A6 Spice Model?
  172. Vacuum Tube DAC
  173. Need help wiring CT transformer
  174. What is this component in my tube amp?
  175. What type of amp should I make with this? Schematic help also needed
  176. 6418 tube preamplifier - Oatley Electronics
  177. Black out coused demage in tube output stage
  178. Need help adding a master volume, and some troubleshooting ...
  179. Other uses for your 807's
  180. Ballantyne output Iron
  181. Power Trafo & Choke headroom
  182. Bare R Cores and bobbins, where???
  183. Plate chokes
  184. Has anyone done anything with the 6112 tube?
  185. el84 amp advice
  186. About to be scammed - bigtime
  187. Dynaco PAS3 -- New Cap board installed
  188. Throw it on the heap... SSE
  189. Loose Tube Bases
  190. 12E1 Triode PP, Any Suggestion?
  191. dac output stage with 5687 pp
  192. Help needed with my Epi Valve Jr
  193. Baby Tube Subwoofer Amp help wanted
  194. 12BH7 and the Simple SE?
  195. "The Bursar" Push-Pull Amplifier
  196. Needed - Advice on tubelab Simple SE build
  197. Oil filled caps - how are they made? DIY caps?
  198. EL34 schematic question
  199. Newb B9A question
  200. 6889 in the Simple SE - misc observations
  201. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  202. 01A tube amp Schematic???
  203. Tubelab's own forum
  204. Are there elegant ways to prevent huge power-on plops?
  205. New EL84 Push-Pull Monoblock
  206. Just to laugh...
  207. QUAD II Stereo Set Up
  208. hammond ao68/7591 question
  209. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  210. How to run a square wave test on an OPT??
  211. Vanderveen 73 Watt valve amplifier PR20HE-S2
  212. 6LU8 Spud - Request for comments
  213. Increasing Output Power for the Engineer's Amplifier
  214. Amperex
  215. A Single Ended presentation
  216. Single-endet Stereo Amp KT88, 6L6, 6P3S
  217. My new 6H30 pre
  218. amplifier bias
  219. Distortion measurements on Meng 6P1
  220. What's wrong with SE Cad?
  221. Observations
  222. p2p aikido phono finished!
  223. 6AC10 tubes
  224. Tricked On Ebay!
  225. Last newbe queston for today, shielding
  226. Pot actoss the filaments
  227. How to adjust summetry?
  228. Tube swap THD
  229. Yarland 34A - Crunch sound, now not the same, any ideas?
  230. Amp SE using F2a tube
  231. WEST-CAP, How about sonic reputation
  232. New 300B JEL/Walton Builder's thread
  233. The worlds least efficient amplifier
  234. Shuguang 6L6GCR and 6550 - Your Experience Please
  235. Bogen CHB-35 - guitar tube amp conversion (another)
  236. Help me identify these Caps! (hamfest find)
  237. nM scale Valves
  238. Orientation of E-I core OPT and toroidal power transformer
  239. Baldwin Iron
  240. Carver super 7
  241. Question:disadvantages for using a SE OPT on parafeed?
  242. CF after gain stage
  243. New to Tubes, just bought first tube amp
  244. Sonic Frontiers SFP-1 mods?
  245. AES tube brand mixing..
  246. Hum with EL84 Push-Pull
  247. Low Voltage Tube Preamplifier
  248. 27 driving 2A3/45/ or 300B
  249. Tube pre-amp for a vehicle?
  250. Meng Yue Mini schematic?

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