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  1. Dynaco MkIII preamp/linestage recommendations?
  2. Can someone please check my PCB layout for this preamp?
  3. looking for easy, low cost guitar amp project
  4. UK EBAY - 100W Marshall / Fender Clone Transformer Set
  5. 1KW power - what do you think?
  6. Bottlehead Filament Choke FC-1 for Push-Pull?
  7. Home James! But first, which transformer?
  8. NAD preamp = 6BQ5 Frankenschteen
  9. Wintersweet highvividity driver circuit
  10. Looking for TT11(CV1501) triode mode curve
  11. Amp switching with 4093/4066. How to add indicator LEDs?
  12. Yaqin MC-10L Blown Fuse
  13. 2a3 amp, progress picture
  14. How do I implement an AZ1 rec tube???
  15. Profit margin on used tube amps
  16. 300B sockets (different question)
  17. How can I modify this grommes little jewel amp for guitar.
  18. tri-amping question (s)
  19. Unity coupled power stage
  20. Acquired A Bunch Of Tubes
  21. Understanding load lines
  22. what would happen if.........?
  23. Testing valves/tubes
  24. 300b socket
  25. Vertical vs. Horizontal does it matter?
  26. Layout thoughts hmm....
  27. ID request, is this a pre?
  28. Anyone got any info on the Tippatone 500 watt amps?
  29. SMPS for Filaments?
  30. Using 6n6pi Push and Pull
  31. Optimum Tube Temperature
  32. Chassis
  33. 5670
  34. will this spice works in real word?
  35. An amplifier for Burning Man
  36. 12AT7,12AU7 Ultra linear cascode
  37. El Cheapo Grande
  38. EL84 Unused pins safe to connect?
  39. 6BQ5/EL84 tube buffer questions
  40. How much power do I need?
  41. Tube buffer/preamp. Where to place voltage divider?
  42. Schematic wanted for VTL Preamp "Maximal"
  43. modified GEC 88-50
  44. Zenith 7B31 Help
  45. Do swingers always buzz when they swing?
  46. 6at6 tube? What can i use it for?
  47. Sovtek 6550WA?
  48. how to make a tube gyrator eq?
  49. Transformer needed or "solid state guy needs help from tube guys"
  50. Differential input, SET output
  51. FFT of PSUD2 output?
  52. Differential push-pull design question
  53. Any EF184 users?
  54. 30P1S - How to use them?
  55. st-70 as good as it gets?
  56. Subbing in a TVC - input load Q
  57. Chinese tubes, new ones or relabeled?
  58. 6AV6 => 12AX7 question
  59. crate vintage club 50 2x12 keeps blowing preamp tubes
  60. 845 & 300b tubes
  61. Sourcing sockets and plugs for power supply umbilicals
  62. Sub mini history question ...
  63. 6DX8 Amp for Headphones and Low Volume Needs
  64. Surplus Voltage Solution
  65. Tube rolling in the Triode Electronics 6au6/12au7 driver board
  66. RCA mystery tube help
  67. Breadboarding/Prototyping - How to and Tips/Tricks
  68. Sub-Miniature Tubes - Low Voltage
  69. True direct-coupled PP amp
  70. "Radical" twist on an all DHT phonostage
  71. input tubes for 300b
  72. JE Labs simple 2a3 filiment tranny, 1 or 2?
  73. ebay Valve Preamps boards for 18 !
  74. Smoothing caps
  75. Spud issues - a little help, please
  76. GLY513 in PS of Simple SE / PP and OTL
  77. Has anyone here built something with this super triode?
  78. What is this part in old radio?
  79. Has anyone done anything with a 5977 sub-mini
  80. Driving EQ from kathode resistor
  81. Understanding CCS vs CVS
  82. Can you believe this!
  83. help with my humming valve amp
  84. Picking tubes for SimpleSE-ish amplifier
  85. 6gk5/ECC88 Phono any comments.
  86. Meng Yue X1 6P1 amp (NOT the mini)
  87. Basic HiFi Tube Amp Layout? Please?
  88. stupid switch question
  89. Max Current of James JS-6123HS Transformer
  90. How do you determine a driver stage?
  91. SUPER cheap nos tubes if you live in california.
  92. 8ohm resistor in series with 8ohm speakers for a 16ohm OT?
  93. a good tube tester?
  94. Can't get adjustable reg to work
  95. 9 volt tube preamp.
  96. DCD power amplifier: 2A3/d3a CCS coupled: new topology?
  97. Equivalent to IXCP10M45S?
  98. Looking for non-DRD 300B using D3a as driver
  99. Akai M8 rebuild/restore/will-this-work?
  100. space charge 12fx8 amp or preamp schematic?
  101. Help with setup to trace UL curves
  102. My KT88 Williamson Amp Build
  103. UV 203A any good for audio ?
  104. What gives with this square wave?
  105. bottlehead paramour PT
  106. DC filament supply without electrolytic(s)?
  107. Looking for R Core power trafo and choke
  108. PP tube amp for bi-amping : above 400 hz
  109. 6N6P question
  110. Integrated valve amplifier : to buy or to build
  111. Lookin for an ST-70-like project
  112. Formula for Zout of diff pair
  113. 6SL7 and Crossovers
  114. Meng Yue: EL34 or 6P1?
  115. Power Transformers and chokes
  116. nos amperex authentic? label doesn't rub off
  117. Software analysis using tube analog circuit Audio Note Kit 1
  118. Webster Amps,Racine Wis.
  119. Help figuring out resistor values
  120. Small (Novel) Tube Rectifiers?
  121. Conrad Johnson ART preamp question.
  122. pd510
  123. i want to build 3D21WB tube PP amp
  124. How to choose an optimal load line for a cathode follwer buffer?
  125. removing sound controlls...
  126. Pentode cathode follower output impedance
  127. Telematic KC401
  128. ebay, 7c kit, worth it?
  129. Mullard 5-10 for guitar use?
  130. Questions: YAQIN MC-100B KT88 together with Spawn Sachiko?
  131. Olson AM-158
  132. Check out my KT88 curves
  133. Just another /\|OOB to Tubes....Need Schem Help
  134. Problem with 832A PP amp
  135. Marantz 8b power transformer
  136. New SET Project
  137. Magnavox Model #OFMC26 Tube Stereo
  138. Balancing Servo
  139. Akai M8 Modding Service Required
  140. 12AX7 basics, some questions on wiring
  141. Hickok Model 600A
  142. Valve for Marshall AVT275 amp
  143. Tube Shield
  144. Choosing an output transformer
  145. Lost in Translation - DIY Japan
  146. Ebay KT88
  147. Filament voltages - an idle curiosity
  148. Project caused by need
  149. PSU issues, advice needed.
  150. Tubelab SE Driver Bias Help
  151. Question about cathode voltage
  152. NOS/NIB tubes what does it mean?
  153. Help to identify transformers
  154. Guitar amp schematic for PPP EL84
  155. DIY tube amp power supply
  156. Socket Saver
  157. Need some tube help!
  158. Need Help Biasing TRV-M300SE Amps
  159. Will this supply work?
  160. First foray into SET, design for your comment
  161. Help understanding a few Ohm's law calculations
  162. Hum in left channer - rogers cadet 3
  163. Need help on understanding AudioResearch like output stage
  164. Help finding 2A3 integrated 2 stage design
  165. 75 / 2A6 Spice Model?
  166. Vacuum Tube DAC
  167. Need help wiring CT transformer
  168. What is this component in my tube amp?
  169. What type of amp should I make with this? Schematic help also needed
  170. 6418 tube preamplifier - Oatley Electronics
  171. Black out coused demage in tube output stage
  172. Need help adding a master volume, and some troubleshooting ...
  173. Other uses for your 807's
  174. Ballantyne output Iron
  175. Power Trafo & Choke headroom
  176. Bare R Cores and bobbins, where???
  177. Plate chokes
  178. Has anyone done anything with the 6112 tube?
  179. el84 amp advice
  180. About to be scammed - bigtime
  181. Dynaco PAS3 -- New Cap board installed
  182. Throw it on the heap... SSE
  183. Loose Tube Bases
  184. 12E1 Triode PP, Any Suggestion?
  185. dac output stage with 5687 pp
  186. Help needed with my Epi Valve Jr
  187. Baby Tube Subwoofer Amp help wanted
  188. 12BH7 and the Simple SE?
  189. "The Bursar" Push-Pull Amplifier
  190. Needed - Advice on tubelab Simple SE build
  191. Oil filled caps - how are they made? DIY caps?
  192. EL34 schematic question
  193. Newb B9A question
  194. 6889 in the Simple SE - misc observations
  195. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  196. 01A tube amp Schematic???
  197. Tubelab's own forum
  198. Are there elegant ways to prevent huge power-on plops?
  199. New EL84 Push-Pull Monoblock
  200. Just to laugh...
  201. QUAD II Stereo Set Up
  202. hammond ao68/7591 question
  203. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  204. How to run a square wave test on an OPT??
  205. Vanderveen 73 Watt valve amplifier PR20HE-S2
  206. 6LU8 Spud - Request for comments
  207. Increasing Output Power for the Engineer's Amplifier
  208. Amperex
  209. A Single Ended presentation
  210. Single-endet Stereo Amp KT88, 6L6, 6P3S
  211. My new 6H30 pre
  212. amplifier bias
  213. Distortion measurements on Meng 6P1
  214. What's wrong with SE Cad?
  215. Observations
  216. p2p aikido phono finished!
  217. 6AC10 tubes
  218. Tricked On Ebay!
  219. Last newbe queston for today, shielding
  220. Pot actoss the filaments
  221. How to adjust summetry?
  222. Tube swap THD
  223. Yarland 34A - Crunch sound, now not the same, any ideas?
  224. Amp SE using F2a tube
  225. WEST-CAP, How about sonic reputation
  226. New 300B JEL/Walton Builder's thread
  227. The worlds least efficient amplifier
  228. Shuguang 6L6GCR and 6550 - Your Experience Please
  229. Bogen CHB-35 - guitar tube amp conversion (another)
  230. Help me identify these Caps! (hamfest find)
  231. nM scale Valves
  232. Orientation of E-I core OPT and toroidal power transformer
  233. Baldwin Iron
  234. Carver super 7
  235. Question:disadvantages for using a SE OPT on parafeed?
  236. CF after gain stage
  237. New to Tubes, just bought first tube amp
  238. Sonic Frontiers SFP-1 mods?
  239. AES tube brand mixing..
  240. Hum with EL84 Push-Pull
  241. Low Voltage Tube Preamplifier
  242. 27 driving 2A3/45/ or 300B
  243. Tube pre-amp for a vehicle?
  244. Meng Yue Mini schematic?
  245. Do you know this guy?
  246. Triode Pentode combo tubes
  247. M8136 M8137 Mullard
  248. suppo with vinyl?
  249. small binding post for TT ground
  250. 27 Filaments DC in series

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