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  1. Just another /\|OOB to Tubes....Need Schem Help
  2. Problem with 832A PP amp
  3. Marantz 8b power transformer
  4. New SET Project
  5. Magnavox Model #OFMC26 Tube Stereo
  6. Balancing Servo
  7. Akai M8 Modding Service Required
  8. 12AX7 basics, some questions on wiring
  9. Hickok Model 600A
  10. Tube Shield
  11. Choosing an output transformer
  12. Lost in Translation - DIY Japan
  13. Ebay KT88
  14. Filament voltages - an idle curiosity
  15. Project caused by need
  16. PSU issues, advice needed.
  17. Tubelab SE Driver Bias Help
  18. Question about cathode voltage
  19. NOS/NIB tubes what does it mean?
  20. Help to identify transformers
  21. DIY tube amp power supply
  22. Socket Saver
  23. Need some tube help!
  24. Need Help Biasing TRV-M300SE Amps
  25. Will this supply work?
  26. First foray into SET, design for your comment
  27. Help understanding a few Ohm's law calculations
  28. Hum in left channer - rogers cadet 3
  29. Need help on understanding AudioResearch like output stage
  30. Help finding 2A3 integrated 2 stage design
  31. 75 / 2A6 Spice Model?
  32. Vacuum Tube DAC
  33. Need help wiring CT transformer
  34. What is this component in my tube amp?
  35. What type of amp should I make with this? Schematic help also needed
  36. 6418 tube preamplifier - Oatley Electronics
  37. Black out coused demage in tube output stage
  38. Need help adding a master volume, and some troubleshooting ...
  39. Other uses for your 807's
  40. Ballantyne output Iron
  41. Power Trafo & Choke headroom
  42. Bare R Cores and bobbins, where???
  43. Plate chokes
  44. Has anyone done anything with the 6112 tube?
  45. el84 amp advice
  46. About to be scammed - bigtime
  47. Dynaco PAS3 -- New Cap board installed
  48. Throw it on the heap... SSE
  49. Loose Tube Bases
  50. 12E1 Triode PP, Any Suggestion?
  51. dac output stage with 5687 pp
  52. Help needed with my Epi Valve Jr
  53. Baby Tube Subwoofer Amp help wanted
  54. 12BH7 and the Simple SE?
  55. "The Bursar" Push-Pull Amplifier
  56. Needed - Advice on tubelab Simple SE build
  57. EL34 schematic question
  58. Newb B9A question
  59. 6889 in the Simple SE - misc observations
  60. Recommend me a KT88/6550 + 7N7 (6SN7) Schematic!
  61. 01A tube amp Schematic???
  62. Tubelab's own forum
  63. Are there elegant ways to prevent huge power-on plops?
  64. New EL84 Push-Pull Monoblock
  65. Just to laugh...
  66. QUAD II Stereo Set Up
  67. hammond ao68/7591 question
  68. 6SN7/6SN7 Aikido + CS4398 DAC = HEAVEN
  69. How to run a square wave test on an OPT??
  70. Vanderveen 73 Watt valve amplifier PR20HE-S2
  71. 6LU8 Spud - Request for comments
  72. Increasing Output Power for the Engineer's Amplifier
  73. Amperex
  74. A Single Ended presentation
  75. Single-endet Stereo Amp KT88, 6L6, 6P3S
  76. My new 6H30 pre
  77. amplifier bias
  78. Distortion measurements on Meng 6P1
  79. What's wrong with SE Cad?
  80. Observations
  81. p2p aikido phono finished!
  82. 6AC10 tubes
  83. Tricked On Ebay!
  84. Last newbe queston for today, shielding
  85. Pot actoss the filaments
  86. How to adjust summetry?
  87. Tube swap THD
  88. Yarland 34A - Crunch sound, now not the same, any ideas?
  89. Amp SE using F2a tube
  90. WEST-CAP, How about sonic reputation
  91. New 300B JEL/Walton Builder's thread
  92. The worlds least efficient amplifier
  93. Shuguang 6L6GCR and 6550 - Your Experience Please
  94. nM scale Valves
  95. Orientation of E-I core OPT and toroidal power transformer
  96. Baldwin Iron
  97. Carver super 7
  98. Question:disadvantages for using a SE OPT on parafeed?
  99. CF after gain stage
  100. New to Tubes, just bought first tube amp
  101. Sonic Frontiers SFP-1 mods?
  102. AES tube brand mixing..
  103. Hum with EL84 Push-Pull
  104. Low Voltage Tube Preamplifier
  105. 27 driving 2A3/45/ or 300B
  106. Tube pre-amp for a vehicle?
  107. Meng Yue Mini schematic?
  108. Do you know this guy?
  109. Triode Pentode combo tubes
  110. M8136 M8137 Mullard
  111. suppo with vinyl?
  112. small binding post for TT ground
  113. 27 Filaments DC in series
  114. Music Angel KT88 hard wired
  115. Nice! First CCS.
  116. bizarre bias, ST-70 experts step inside
  117. hammond power tx 200series update
  118. Volts D.C. panel meter for B+
  119. What is the best tube amp??
  120. 6GM8 Hickok test settings?
  121. NASA space-age tube for audio use
  122. ECL86/6GW8 Console opinions
  123. Bad tubes wanted for tester testing
  124. 7868 tube biasing and output trans protection
  125. second build, recommendations , thoughts
  126. Changing Electra-Print DRD45
  127. ruTubes.com. Anyone dealt with them?
  128. output transformer manufacturer
  129. no resistor values........
  130. Gz34 + otl 6n23p
  131. Jukebox Iron
  132. converting tube rectifier to solid state rectifier.
  133. Help please, Jolida 202a hum.
  134. Amperex Bugle Boy tube???
  135. What's a reasonable amount of power-supply ripple?
  136. Vintage tube amp Aux In To CD In
  137. mounting TO-220 devices
  138. My first valve amp - help appreciated :)
  139. Plasma ball in tube
  140. Nagra's engineers at work.
  141. what just happened? Plate glowing
  142. "Mullard 5-20 KT88 PP blocks!
  143. CCS transistor choices
  144. Simple SE parts "Kit"
  145. capacitor upgrade on my tube phono stage
  146. Microphone Preamp
  147. 6N2 swap
  148. K12M / K12G Current Draw
  149. Best china amp?
  150. Hagtech Clarion 2A3 SET
  151. Tubelab Simple SE Schematic
  152. new idea for a tube power amp
  153. help choose between two preamps
  154. Need a MC phono stage, do i need a pre as well?
  155. What the difference between 7591a & 7868
  156. High Voltage Huge Storage CAPS for that Ultimate Valve Amp
  157. Need a good phono stage design..
  158. getting a pop when i power down, help
  159. Japan vs US output tx
  160. My own RIAA tube preamp
  161. Tube-I-zator SRPP DAC I/V-Stage circuit discussions
  162. Lab Power Supply
  163. Learning to measure question
  164. Anyone using silver secondary (or PSSS) output tx
  165. Cary audio design CAD-211
  166. mains overvoltage what to do?
  167. Looking Schematic converting Volume pot to Digital Vol for tube amp.
  168. Jean Hiraga SE Amplifier Power Supply
  169. TubeLab SE, Finally
  170. channel imbalance!!!! need help
  171. ESRC Dollar Sale - Going, Going...
  172. Post pics of your glowing tubes
  173. PCB Layout for tube amp
  174. 530V low-ish dropout regulator?
  175. were can i get transformers from
  176. 6N9P data sheet
  177. Newbie questions - RH84 mods
  178. TriodeElectronics Mk3 for rank noob?
  179. 5718 preamp
  180. 12B4 the pre for me?
  181. Anyone used C3G to drive a 2A3 before?
  182. Cascode Tube Mic Preamp: 12AX7/12AU7 Schematic
  183. Bogen MX60A Schematics
  184. Nasty pop when I power down
  185. Timer for tube hours
  186. Personal Tube Amp DIY Project
  187. Common cathode linestage with 6080
  188. Fingernail polish?
  189. Tube Lab Simple SE with interstage transformer
  190. Wintersweet HighVividity Amplifer finalized
  191. Iron loaded preamp, any thoughts?
  192. Tetra Phono Preamp as a DAC analog stage
  193. EL84 Plate Dissipation
  194. 12AU7 Amp?
  195. Toroidal Chokes
  196. Using a voltage converter transformer
  197. Regulated PSU question
  198. please help me change this
  199. Stromberg-Carlson Identification Help
  200. pi filter variations
  201. How do I change this design from EL34 to 6L6?
  202. Sun Audio SV-300B MKII DIY
  203. 230-115V step down transformer earthing
  204. PP oscillation problem
  205. Wiring a DPDT for direct in & 2-100k mono pots ..?
  206. Arion "ADONIS" Schematics Request
  207. Phono Stage my first try
  208. Maximum gain with 6SN7 ?
  209. Rca 6md8
  210. Getting the DIYer blues again.
  211. EL34 B review Tung-Sol
  212. Please help with my first valve preamp ?
  213. power supply filter choke current rating.
  214. Will and Aikido Driver Stage work?
  215. Bottlehead Foreplay III improvements, suggestions, alternatives?
  216. DC modules fot DHT amps....too expensive to buy pre-built, why not DIY them?
  217. Sprague 183P Question
  218. Load Resistance (Ra) question applied to OTs
  219. B&K 610 connector pinout
  220. Buzzing Volume and presence
  221. 807 pp build project - whose in?
  222. tubelab simple se: increasing the drive
  223. where to buy dn2540 and 10m45 in UK
  224. ecc88 arcing at shutdown problem...
  225. Question - Output Trafo with CFB
  226. Tubelab SE rect. arcing -looking for more info
  227. Looking for a hookup wire supplier
  228. Valves' world
  229. Tube diode for cathode bias?
  230. Trying to get a response from TX maker.pass it on.
  231. Need help choosing a filament supply
  232. Motorola 3 channel Tube Amp from Console
  233. Most compact 90V power supply
  234. Decware output stage
  235. 50FE5-push pull stereo
  236. tamura f-7000 series
  237. Very simple high power single ended
  238. CAD for tubes?
  239. Which tubes are lowest noise?
  240. Stacking/paralleling caps - same value?
  241. where to get good 5AR4 's
  242. Greetings from ETF!
  243. 26 Preamp, Kennedy Version 3
  244. Roederstein replacements?
  245. Playin' with feedback
  246. schematic yaqin cd1 tube buffer
  247. Tubelab Simple SE questions
  248. tube preamp
  249. Filament current bias
  250. What Transformer is better ??

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