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  1. Ebay KT88
  2. Filament voltages - an idle curiosity
  3. Project caused by need
  4. PSU issues, advice needed.
  5. Tubelab SE Driver Bias Help
  6. Question about cathode voltage
  7. NOS/NIB tubes what does it mean?
  8. Help to identify transformers
  9. DIY tube amp power supply
  10. Socket Saver
  11. Need some tube help!
  12. Need Help Biasing TRV-M300SE Amps
  13. Will this supply work?
  14. First foray into SET, design for your comment
  15. Help understanding a few Ohm's law calculations
  16. Hum in left channer - rogers cadet 3
  17. Need help on understanding AudioResearch like output stage
  18. Help finding 2A3 integrated 2 stage design
  19. 75 / 2A6 Spice Model?
  20. Vacuum Tube DAC
  21. Need help wiring CT transformer
  22. What is this component in my tube amp?
  23. What type of amp should I make with this? Schematic help also needed
  24. 6418 tube preamplifier - Oatley Electronics
  25. Black out coused demage in tube output stage
  26. Need help adding a master volume, and some troubleshooting ...
  27. Other uses for your 807's
  28. Ballantyne output Iron
  29. Power Trafo & Choke headroom
  30. Bare R Cores and bobbins, where???
  31. Plate chokes
  32. Has anyone done anything with the 6112 tube?
  33. el84 amp advice
  34. About to be scammed - bigtime
  35. Dynaco PAS3 -- New Cap board installed
  36. Throw it on the heap... SSE
  37. Loose Tube Bases
  38. 12E1 Triode PP, Any Suggestion?
  39. dac output stage with 5687 pp
  40. Help needed with my Epi Valve Jr
  41. Baby Tube Subwoofer Amp help wanted
  42. 12BH7 and the Simple SE?
  43. "The Bursar" Push-Pull Amplifier
  44. Needed - Advice on tubelab Simple SE build
  45. EL34 schematic question
  46. Newb B9A question
  47. 6889 in the Simple SE - misc observations
  48. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  49. 01A tube amp Schematic???
  50. Tubelab's own forum
  51. Are there elegant ways to prevent huge power-on plops?
  52. New EL84 Push-Pull Monoblock
  53. Just to laugh...
  54. QUAD II Stereo Set Up
  55. hammond ao68/7591 question
  56. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  57. How to run a square wave test on an OPT??
  58. Vanderveen 73 Watt valve amplifier PR20HE-S2
  59. 6LU8 Spud - Request for comments
  60. Increasing Output Power for the Engineer's Amplifier
  61. Amperex
  62. A Single Ended presentation
  63. Single-endet Stereo Amp KT88, 6L6, 6P3S
  64. My new 6H30 pre
  65. amplifier bias
  66. Distortion measurements on Meng 6P1
  67. What's wrong with SE Cad?
  68. Observations
  69. p2p aikido phono finished!
  70. 6AC10 tubes
  71. Tricked On Ebay!
  72. Last newbe queston for today, shielding
  73. Pot actoss the filaments
  74. How to adjust summetry?
  75. Tube swap THD
  76. Yarland 34A - Crunch sound, now not the same, any ideas?
  77. Amp SE using F2a tube
  78. WEST-CAP, How about sonic reputation
  79. New 300B JEL/Walton Builder's thread
  80. The worlds least efficient amplifier
  81. Shuguang 6L6GCR and 6550 - Your Experience Please
  82. nM scale Valves
  83. Orientation of E-I core OPT and toroidal power transformer
  84. Baldwin Iron
  85. Carver super 7
  86. Question:disadvantages for using a SE OPT on parafeed?
  87. CF after gain stage
  88. New to Tubes, just bought first tube amp
  89. Sonic Frontiers SFP-1 mods?
  90. AES tube brand mixing..
  91. Hum with EL84 Push-Pull
  92. Low Voltage Tube Preamplifier
  93. 27 driving 2A3/45/ or 300B
  94. Tube pre-amp for a vehicle?
  95. Meng Yue Mini schematic?
  96. Do you know this guy?
  97. Triode Pentode combo tubes
  98. M8136 M8137 Mullard
  99. suppo with vinyl?
  100. small binding post for TT ground
  101. 27 Filaments DC in series
  102. Music Angel KT88 hard wired
  103. Nice! First CCS.
  104. bizarre bias, ST-70 experts step inside
  105. hammond power tx 200series update
  106. Volts D.C. panel meter for B+
  107. What is the best tube amp??
  108. 6GM8 Hickok test settings?
  109. NASA space-age tube for audio use
  110. ECL86/6GW8 Console opinions
  111. Bad tubes wanted for tester testing
  112. 7868 tube biasing and output trans protection
  113. second build, recommendations , thoughts
  114. Changing Electra-Print DRD45
  115. ruTubes.com. Anyone dealt with them?
  116. output transformer manufacturer
  117. no resistor values........
  118. Gz34 + otl 6n23p
  119. Jukebox Iron
  120. converting tube rectifier to solid state rectifier.
  121. Help please, Jolida 202a hum.
  122. Amperex Bugle Boy tube???
  123. What's a reasonable amount of power-supply ripple?
  124. Vintage tube amp Aux In To CD In
  125. mounting TO-220 devices
  126. My first valve amp - help appreciated :)
  127. Plasma ball in tube
  128. Nagra's engineers at work.
  129. what just happened? Plate glowing
  130. "Mullard 5-20 KT88 PP blocks!
  131. CCS transistor choices
  132. Simple SE parts "Kit"
  133. capacitor upgrade on my tube phono stage
  134. Microphone Preamp
  135. 6N2 swap
  136. K12M / K12G Current Draw
  137. Best china amp?
  138. Hagtech Clarion 2A3 SET
  139. Tubelab Simple SE Schematic
  140. new idea for a tube power amp
  141. help choose between two preamps
  142. Need a MC phono stage, do i need a pre as well?
  143. What the difference between 7591a & 7868
  144. Need a good phono stage design..
  145. getting a pop when i power down, help
  146. Japan vs US output tx
  147. My own RIAA tube preamp
  148. Tube-I-zator SRPP DAC I/V-Stage circuit discussions
  149. Lab Power Supply
  150. Learning to measure question
  151. Anyone using silver secondary (or PSSS) output tx
  152. Cary audio design CAD-211
  153. mains overvoltage what to do?
  154. Looking Schematic converting Volume pot to Digital Vol for tube amp.
  155. Jean Hiraga SE Amplifier Power Supply
  156. TubeLab SE, Finally
  157. channel imbalance!!!! need help
  158. ESRC Dollar Sale - Going, Going...
  159. Post pics of your glowing tubes
  160. PCB Layout for tube amp
  161. 530V low-ish dropout regulator?
  162. were can i get transformers from
  163. 6N9P data sheet
  164. Newbie questions - RH84 mods
  165. TriodeElectronics Mk3 for rank noob?
  166. 5718 preamp
  167. 12B4 the pre for me?
  168. Anyone used C3G to drive a 2A3 before?
  169. Cascode Tube Mic Preamp: 12AX7/12AU7 Schematic
  170. Bogen MX60A Schematics
  171. Nasty pop when I power down
  172. Timer for tube hours
  173. Personal Tube Amp DIY Project
  174. Common cathode linestage with 6080
  175. Fingernail polish?
  176. Tube Lab Simple SE with interstage transformer
  177. Wintersweet HighVividity Amplifer finalized
  178. Iron loaded preamp, any thoughts?
  179. Tetra Phono Preamp as a DAC analog stage
  180. EL84 Plate Dissipation
  181. 12AU7 Amp?
  182. Toroidal Chokes
  183. Using a voltage converter transformer
  184. Regulated PSU question
  185. please help me change this
  186. Stromberg-Carlson Identification Help
  187. pi filter variations
  188. How do I change this design from EL34 to 6L6?
  189. Sun Audio SV-300B MKII DIY
  190. 230-115V step down transformer earthing
  191. PP oscillation problem
  192. Wiring a DPDT for direct in & 2-100k mono pots ..?
  193. Arion "ADONIS" Schematics Request
  194. Phono Stage my first try
  195. Maximum gain with 6SN7 ?
  196. Rca 6md8
  197. Getting the DIYer blues again.
  198. EL34 B review Tung-Sol
  199. Please help with my first valve preamp ?
  200. power supply filter choke current rating.
  201. Will and Aikido Driver Stage work?
  202. Bottlehead Foreplay III improvements, suggestions, alternatives?
  203. DC modules fot DHT amps....too expensive to buy pre-built, why not DIY them?
  204. Sprague 183P Question
  205. Load Resistance (Ra) question applied to OTs
  206. B&K 610 connector pinout
  207. Buzzing Volume and presence
  208. 807 pp build project - whose in?
  209. tubelab simple se: increasing the drive
  210. where to buy dn2540 and 10m45 in UK
  211. ecc88 arcing at shutdown problem...
  212. Question - Output Trafo with CFB
  213. Tubelab SE rect. arcing -looking for more info
  214. Looking for a hookup wire supplier
  215. Valves' world
  216. Tube diode for cathode bias?
  217. Trying to get a response from TX maker.pass it on.
  218. Need help choosing a filament supply
  219. Motorola 3 channel Tube Amp from Console
  220. Most compact 90V power supply
  221. Decware output stage
  222. 50FE5-push pull stereo
  223. tamura f-7000 series
  224. Very simple high power single ended
  225. CAD for tubes?
  226. Which tubes are lowest noise?
  227. where to get good 5AR4 's
  228. Greetings from ETF!
  229. 26 Preamp, Kennedy Version 3
  230. Roederstein replacements?
  231. Playin' with feedback
  232. schematic yaqin cd1 tube buffer
  233. Tubelab Simple SE questions
  234. tube preamp
  235. Filament current bias
  236. What Transformer is better ??
  237. DC-coupled CF driver pentode help!
  238. HHScott Forum?
  239. Delay relay
  240. Amp Gain Design Philosophy
  241. Greetings - Watt Calculation
  242. AES Chocolates?
  243. Power supply filters - sim results
  244. Q............PP Ultrapath
  245. formula help
  246. DAC -> Amp with parallelled E182CC and Lundahl transformers -> 8ohm headphones
  247. Need an HV trafo? Try these:
  248. Driver for Musical Fidelity 550K
  249. Yaqin MC-10l
  250. help with 2 stage cathode follower

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