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  1. PSU issues, advice needed.
  2. Tubelab SE Driver Bias Help
  3. Question about cathode voltage
  4. NOS/NIB tubes what does it mean?
  5. Help to identify transformers
  6. DIY tube amp power supply
  7. Socket Saver
  8. Need some tube help!
  9. Need Help Biasing TRV-M300SE Amps
  10. Will this supply work?
  11. First foray into SET, design for your comment
  12. Help understanding a few Ohm's law calculations
  13. Hum in left channer - rogers cadet 3
  14. Need help on understanding AudioResearch like output stage
  15. Help finding 2A3 integrated 2 stage design
  16. 75 / 2A6 Spice Model?
  17. Vacuum Tube DAC
  18. Need help wiring CT transformer
  19. What is this component in my tube amp?
  20. What type of amp should I make with this? Schematic help also needed
  21. 6418 tube preamplifier - Oatley Electronics
  22. Black out coused demage in tube output stage
  23. Need help adding a master volume, and some troubleshooting ...
  24. Other uses for your 807's
  25. Ballantyne output Iron
  26. Power Trafo & Choke headroom
  27. Bare R Cores and bobbins, where???
  28. Plate chokes
  29. Has anyone done anything with the 6112 tube?
  30. el84 amp advice
  31. About to be scammed - bigtime
  32. Dynaco PAS3 -- New Cap board installed
  33. Throw it on the heap... SSE
  34. Loose Tube Bases
  35. 12E1 Triode PP, Any Suggestion?
  36. dac output stage with 5687 pp
  37. Help needed with my Epi Valve Jr
  38. Baby Tube Subwoofer Amp help wanted
  39. 12BH7 and the Simple SE?
  40. "The Bursar" Push-Pull Amplifier
  41. Needed - Advice on tubelab Simple SE build
  42. Oil filled caps - how are they made? DIY caps?
  43. EL34 schematic question
  44. Newb B9A question
  45. 6889 in the Simple SE - misc observations
  46. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  47. 01A tube amp Schematic???
  48. Tubelab's own forum
  49. Are there elegant ways to prevent huge power-on plops?
  50. New EL84 Push-Pull Monoblock
  51. Just to laugh...
  52. QUAD II Stereo Set Up
  53. hammond ao68/7591 question
  54. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  55. How to run a square wave test on an OPT??
  56. Vanderveen 73 Watt valve amplifier PR20HE-S2
  57. 6LU8 Spud - Request for comments
  58. Increasing Output Power for the Engineer's Amplifier
  59. Amperex
  60. A Single Ended presentation
  61. Single-endet Stereo Amp KT88, 6L6, 6P3S
  62. My new 6H30 pre
  63. amplifier bias
  64. Distortion measurements on Meng 6P1
  65. What's wrong with SE Cad?
  66. Observations
  67. p2p aikido phono finished!
  68. 6AC10 tubes
  69. Tricked On Ebay!
  70. Last newbe queston for today, shielding
  71. Pot actoss the filaments
  72. How to adjust summetry?
  73. Tube swap THD
  74. Yarland 34A - Crunch sound, now not the same, any ideas?
  75. Amp SE using F2a tube
  76. WEST-CAP, How about sonic reputation
  77. New 300B JEL/Walton Builder's thread
  78. The worlds least efficient amplifier
  79. Shuguang 6L6GCR and 6550 - Your Experience Please
  80. Help me identify these Caps! (hamfest find)
  81. nM scale Valves
  82. Orientation of E-I core OPT and toroidal power transformer
  83. Baldwin Iron
  84. Carver super 7
  85. Question:disadvantages for using a SE OPT on parafeed?
  86. CF after gain stage
  87. New to Tubes, just bought first tube amp
  88. Sonic Frontiers SFP-1 mods?
  89. AES tube brand mixing..
  90. Hum with EL84 Push-Pull
  91. Low Voltage Tube Preamplifier
  92. 27 driving 2A3/45/ or 300B
  93. Tube pre-amp for a vehicle?
  94. Meng Yue Mini schematic?
  95. Do you know this guy?
  96. Triode Pentode combo tubes
  97. M8136 M8137 Mullard
  98. suppo with vinyl?
  99. small binding post for TT ground
  100. 27 Filaments DC in series
  101. Music Angel KT88 hard wired
  102. Nice! First CCS.
  103. bizarre bias, ST-70 experts step inside
  104. hammond power tx 200series update
  105. Volts D.C. panel meter for B+
  106. What is the best tube amp??
  107. 6GM8 Hickok test settings?
  108. NASA space-age tube for audio use
  109. ECL86/6GW8 Console opinions
  110. Bad tubes wanted for tester testing
  111. 7868 tube biasing and output trans protection
  112. second build, recommendations , thoughts
  113. Changing Electra-Print DRD45
  114. ruTubes.com. Anyone dealt with them?
  115. output transformer manufacturer
  116. no resistor values........
  117. Gz34 + otl 6n23p
  118. Jukebox Iron
  119. converting tube rectifier to solid state rectifier.
  120. Help please, Jolida 202a hum.
  121. Amperex Bugle Boy tube???
  122. What's a reasonable amount of power-supply ripple?
  123. Vintage tube amp Aux In To CD In
  124. mounting TO-220 devices
  125. My first valve amp - help appreciated :)
  126. Plasma ball in tube
  127. Nagra's engineers at work.
  128. what just happened? Plate glowing
  129. "Mullard 5-20 KT88 PP blocks!
  130. CCS transistor choices
  131. Simple SE parts "Kit"
  132. capacitor upgrade on my tube phono stage
  133. Microphone Preamp
  134. 6N2 swap
  135. K12M / K12G Current Draw
  136. Best china amp?
  137. Hagtech Clarion 2A3 SET
  138. Tubelab Simple SE Schematic
  139. new idea for a tube power amp
  140. help choose between two preamps
  141. Need a MC phono stage, do i need a pre as well?
  142. What the difference between 7591a & 7868
  143. High Voltage Huge Storage CAPS for that Ultimate Valve Amp
  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. Stacking/paralleling caps - same value?
  228. where to get good 5AR4 's
  229. Greetings from ETF!
  230. 26 Preamp, Kennedy Version 3
  231. Roederstein replacements?
  232. Playin' with feedback
  233. schematic yaqin cd1 tube buffer
  234. Tubelab Simple SE questions
  235. tube preamp
  236. Filament current bias
  237. What Transformer is better ??
  238. DC-coupled CF driver pentode help!
  239. HHScott Forum?
  240. Delay relay
  241. Amp Gain Design Philosophy
  242. Greetings - Watt Calculation
  243. AES Chocolates?
  244. Power supply filters - sim results
  245. Q............PP Ultrapath
  246. formula help
  247. DAC -> Amp with parallelled E182CC and Lundahl transformers -> 8ohm headphones
  248. Need an HV trafo? Try these:
  249. Driver for Musical Fidelity 550K
  250. Yaqin MC-10l

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