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  1. Japan vs US output tx
  2. My own RIAA tube preamp
  3. Tube-I-zator SRPP DAC I/V-Stage circuit discussions
  4. Lab Power Supply
  5. diy MESA pre as 3rd channel on guitar amp? - Need Advise!
  6. Learning to measure question
  7. Anyone using silver secondary (or PSSS) output tx
  8. Cary audio design CAD-211
  9. mains overvoltage what to do?
  10. Looking Schematic converting Volume pot to Digital Vol for tube amp.
  11. Jean Hiraga SE Amplifier Power Supply
  12. TubeLab SE, Finally
  13. channel imbalance!!!! need help
  14. ESRC Dollar Sale - Going, Going...
  15. Post pics of your glowing tubes
  16. PCB Layout for tube amp
  17. 530V low-ish dropout regulator?
  18. were can i get transformers from
  19. 6N9P data sheet
  20. Newbie questions - RH84 mods
  21. TriodeElectronics Mk3 for rank noob?
  22. 5718 preamp
  23. 12B4 the pre for me?
  24. Anyone used C3G to drive a 2A3 before?
  25. Cascode Tube Mic Preamp: 12AX7/12AU7 Schematic
  26. Bogen MX60A Schematics
  27. Nasty pop when I power down
  28. Timer for tube hours
  29. Personal Tube Amp DIY Project
  30. Common cathode linestage with 6080
  31. Fingernail polish?
  32. Tube Lab Simple SE with interstage transformer
  33. Wintersweet HighVividity Amplifer finalized
  34. Iron loaded preamp, any thoughts?
  35. Tetra Phono Preamp as a DAC analog stage
  36. EL84 Plate Dissipation
  37. bogen m330a -> 5f6a bassman
  38. 12AU7 Amp?
  39. Toroidal Chokes
  40. Using a voltage converter transformer
  41. Regulated PSU question
  42. please help me change this
  43. Stromberg-Carlson Identification Help
  44. pi filter variations
  45. How do I change this design from EL34 to 6L6?
  46. Sun Audio SV-300B MKII DIY
  47. 230-115V step down transformer earthing
  48. PP oscillation problem
  49. Wiring a DPDT for direct in & 2-100k mono pots ..?
  50. Arion "ADONIS" Schematics Request
  51. Phono Stage my first try
  52. Maximum gain with 6SN7 ?
  53. Rca 6md8
  54. Getting the DIYer blues again.
  55. EL34 B review Tung-Sol
  56. Please help with my first valve preamp ?
  57. power supply filter choke current rating.
  58. Will and Aikido Driver Stage work?
  59. Bottlehead Foreplay III improvements, suggestions, alternatives?
  60. DC modules fot DHT amps....too expensive to buy pre-built, why not DIY them?
  61. Sprague 183P Question
  62. Load Resistance (Ra) question applied to OTs
  63. B&K 610 connector pinout
  64. Buzzing Volume and presence
  65. 807 pp build project - whose in?
  66. tubelab simple se: increasing the drive
  67. where to buy dn2540 and 10m45 in UK
  68. ecc88 arcing at shutdown problem...
  69. Question - Output Trafo with CFB
  70. Tubelab SE rect. arcing -looking for more info
  71. Looking for a hookup wire supplier
  72. Valves' world
  73. Tube diode for cathode bias?
  74. Trying to get a response from TX maker.pass it on.
  75. Need help choosing a filament supply
  76. Motorola 3 channel Tube Amp from Console
  77. Most compact 90V power supply
  78. Decware output stage
  79. 50FE5-push pull stereo
  80. tamura f-7000 series
  81. Very simple high power single ended
  82. CAD for tubes?
  83. Which tubes are lowest noise?
  84. Stacking/paralleling caps - same value?
  85. where to get good 5AR4 's
  86. Greetings from ETF!
  87. 26 Preamp, Kennedy Version 3
  88. 2chanell PCL86-PP "tube buster" for guitar
  89. Roederstein replacements?
  90. Playin' with feedback
  91. schematic yaqin cd1 tube buffer
  92. Tubelab Simple SE questions
  93. tube preamp
  94. Filament current bias
  95. What Transformer is better ??
  96. DC-coupled CF driver pentode help!
  97. HHScott Forum?
  98. Delay relay
  99. Amp Gain Design Philosophy
  100. Converting a Stromberg Carlson AU-35 into a Bass guitar amp?
  101. Greetings - Watt Calculation
  102. AES Chocolates?
  103. Power supply filters - sim results
  104. Q............PP Ultrapath
  105. formula help
  106. DAC -> Amp with parallelled E182CC and Lundahl transformers -> 8ohm headphones
  107. Need an HV trafo? Try these:
  108. Driver for Musical Fidelity 550K
  109. Yaqin MC-10l
  110. help with 2 stage cathode follower
  111. B&K 747 tube tester
  112. Screen glowing?
  113. Grid 2 voltage affects
  114. Simple Tube Mono Block Tube Amp Schematic
  115. Optimizing a 807 PP amplifiers input stage and phase splitter...
  116. Chassis Layout Advice
  117. strange Stromberg Carlson
  118. lifting the earth
  119. passive xover w/ SET?
  120. Low gain tube amp?
  121. What to do with these parts?
  122. Regulated Heater on the 6SN7 Aikido Plate to Heater question
  123. SRPP with buffer - 1MOhm impedance?
  124. PSUD2 & g2 on 807 problem..?
  125. 230V transformer for a 832 PP project
  126. Mercury vapour rectifier for George
  127. Replacing 6L6 with 6V6: what changes needed?
  128. 4 tube line level pre?
  129. Tube Hybrid Amp Gain Calculation
  130. transformer coupled plate follower
  131. What does your system look like?
  132. Cascoding tubes
  133. Advice with modification of Beard power amp
  134. Harman Kardon TA5000-X power XFMR
  135. This happens when you hire a good designer.
  136. Test & Measurement interface for Soundcard
  137. Where to find large capacity high voltage caps?
  138. 1st Pass at 1st Phono Preamp; Comments?
  139. Transformers to try.
  140. Hum in phono pre - help please
  141. Output transformer cores
  142. Output transformer cores
  143. Presonus Bluetube makeover
  144. Tube Amp Channel Switching
  145. physically small twin triode tube
  146. Tubelab SE 2A3 _ Newbie question.
  147. TJ Full Music Factory Tour Now Online
  148. where to find cool vol control knobs?
  149. $200 6V6 Amp
  150. Audio Research Reference Phono, anyone?
  151. Review of Suppo Audio's first offering - EL84 Push Pull
  152. 6n23p(-ev)
  153. Akikido LSA/HPA 9-Pin or Akikido Octal which one?
  154. TUBE AMP 1946 worth grabbing?
  155. SE Newbie wants to go level 2
  156. Where To Purchase Tube Amp Parts in the UK
  157. The soul of a new "electrostatic" machine
  158. Transformer question
  159. Hybrid caps
  160. 6021 phono pre-amp
  161. bandmaster ab763 fx loop
  162. How to design input stage with specific input impedance/pot value
  163. Simple SE Grounding Question
  164. James OPT connections?
  165. DIY rtp5 help please?
  166. SS Followers to drive power tubes
  167. Sophia Electric EL34 Schematic
  168. DRD amplifier with CCS?
  169. Phono Preamp
  170. Dynaco ST-70 with a GSI board, Parts diagram and any info PLEASE
  171. transistor AC blocker
  172. PL519 Source
  173. Identify this mullard
  174. Suppo Audio -- New Chinese EL84 PP amp for CHEAP.
  175. Beard p35mkII schematics/photo photo
  176. Bias transformer question
  177. Anyone deliberately dial in 2nd harmonic?
  178. What is the sonic impact of SS CCS in tube equipment
  179. Phase help
  180. El34-kt88
  181. Transconductance amplifier based on hybrid cascode
  182. Chinese 6Z4, also those regulated supplies.
  183. Audion Reference restoration
  184. Anyone try a regulated PS in an Ultrapath preamp?
  185. Source for Resistor sets?
  186. High Zout tube preamps with ss power amps.
  187. PSUD II soft start
  188. About the 6AU6s
  189. Capacitor polarity question
  190. Audio Note line preamp question
  191. EL34 SE amp schematic
  192. looking for 12AT7 / ECC81 phase splitter
  193. 6AS7 getting rare?
  194. How to power up a new Build the first time
  195. power transformer for a 2a3se amp!
  196. 6DJ8 Tube Phono and Line Preamp
  197. ST-35 Build Using PC13 Boards Questions and Thoughts
  198. My new hybrid full single ended amplifier project on going
  199. Punch tools for making metal top plates on amps
  200. antique sound lab AQ1009-845 interstage transformer replacement
  201. The search for the ultimate 6SN7
  202. Looking for a good part web store
  203. Need your advice for tube amp case
  204. Questions about grounding
  205. power supply
  206. Strange idea for an output stage - comments requested
  207. Please comment on this EL84 PP design
  208. 1.5VDC Heater Supply For #26!?
  209. Looking for 300B or 2A3 design suggestions......gearing up for a new project
  210. original philips AD-9058
  211. Bench test equipment, What's yours?
  212. Gain calculating in 12ax7 guitar preamp
  213. Tube Lab SE Problem
  214. Tube Socket help, I'm looking at a few, but not sure which material to buy?
  215. Sweep tube info/specs
  216. Help for Tango 300b amp
  217. vacuum tubes type 10 and UX201A
  218. 6DQ5 specs for audio
  219. r-core output transformers...
  220. Isolation Transformer Question
  221. Buffer question?
  222. el95 pp amp for guitar
  223. Two positive rails from a center-tapped transformer?
  224. Help reqd - 115V PTX on 230V
  225. Replacing the cathode resistor with a current source in SE ?
  226. First 300b Design, Please comment
  227. 6AX4 datasheet question
  228. Bias Drift
  229. Recommend me a tube...
  230. What happens when Heater Cathode voltage is exceeded?
  231. 100uF Motor Run Caps
  232. HELP Schematics for RL 12 T 15
  233. Phono Stage
  234. TEE Vee Tube fans' SE Cf Amp
  235. Yaqin MC-10L losing volume
  236. Pl84 tubes
  237. AnalogMetric 6L6GC SE amp kit...thoughts about this kit?
  238. 5150 or slo 5-50w clone
  239. ECC88, warm up time
  240. Yaqin MC-10L Heater Voltage
  241. 6c33 otl amblifier
  242. self-oscillation in Dynaco ST-70
  243. computer tube tester
  244. Troubleshooting the decware se84 kit
  245. 6L6 PP problem
  246. First try at an Eagle Schematic/board
  247. opinions on decware zen kit
  248. Powerdrive for PP amp with local feedback and pentode driver ?
  249. having trouble calculating transconductance
  250. Philips console unit with reverb!

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