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  1. physically small twin triode tube
  2. Tubelab SE 2A3 _ Newbie question.
  3. TJ Full Music Factory Tour Now Online
  4. where to find cool vol control knobs?
  5. $200 6V6 Amp
  6. Audio Research Reference Phono, anyone?
  7. Review of Suppo Audio's first offering - EL84 Push Pull
  8. 6n23p(-ev)
  9. Akikido LSA/HPA 9-Pin or Akikido Octal which one?
  10. TUBE AMP 1946 worth grabbing?
  11. SE Newbie wants to go level 2
  12. Where To Purchase Tube Amp Parts in the UK
  13. The soul of a new "electrostatic" machine
  14. Transformer question
  15. Hybrid caps
  16. 6021 phono pre-amp
  17. bandmaster ab763 fx loop
  18. How to design input stage with specific input impedance/pot value
  19. Simple SE Grounding Question
  20. James OPT connections?
  21. DIY rtp5 help please?
  22. SS Followers to drive power tubes
  23. Sophia Electric EL34 Schematic
  24. DRD amplifier with CCS?
  25. Phono Preamp
  26. Dynaco ST-70 with a GSI board, Parts diagram and any info PLEASE
  27. transistor AC blocker
  28. PL519 Source
  29. Identify this mullard
  30. Suppo Audio -- New Chinese EL84 PP amp for CHEAP.
  31. Beard p35mkII schematics/photo photo
  32. Bias transformer question
  33. Anyone deliberately dial in 2nd harmonic?
  34. What is the sonic impact of SS CCS in tube equipment
  35. Phase help
  36. El34-kt88
  37. Transconductance amplifier based on hybrid cascode
  38. Chinese 6Z4, also those regulated supplies.
  39. Audion Reference restoration
  40. Anyone try a regulated PS in an Ultrapath preamp?
  41. Source for Resistor sets?
  42. High Zout tube preamps with ss power amps.
  43. PSUD II soft start
  44. About the 6AU6s
  45. Capacitor polarity question
  46. Audio Note line preamp question
  47. EL34 SE amp schematic
  48. looking for 12AT7 / ECC81 phase splitter
  49. 6AS7 getting rare?
  50. How to power up a new Build the first time
  51. power transformer for a 2a3se amp!
  52. 6DJ8 Tube Phono and Line Preamp
  53. ST-35 Build Using PC13 Boards Questions and Thoughts
  54. My new hybrid full single ended amplifier project on going
  55. Punch tools for making metal top plates on amps
  56. antique sound lab AQ1009-845 interstage transformer replacement
  57. The search for the ultimate 6SN7
  58. Looking for a good part web store
  59. Need your advice for tube amp case
  60. Questions about grounding
  61. power supply
  62. Strange idea for an output stage - comments requested
  63. Please comment on this EL84 PP design
  64. 1.5VDC Heater Supply For #26!?
  65. Looking for 300B or 2A3 design suggestions......gearing up for a new project
  66. original philips AD-9058
  67. Bench test equipment, What's yours?
  68. Gain calculating in 12ax7 guitar preamp
  69. Tube Lab SE Problem
  70. Tube Socket help, I'm looking at a few, but not sure which material to buy?
  71. Sweep tube info/specs
  72. Help for Tango 300b amp
  73. vacuum tubes type 10 and UX201A
  74. 6DQ5 specs for audio
  75. r-core output transformers...
  76. Isolation Transformer Question
  77. Buffer question?
  78. el95 pp amp for guitar
  79. Two positive rails from a center-tapped transformer?
  80. Help reqd - 115V PTX on 230V
  81. Replacing the cathode resistor with a current source in SE ?
  82. First 300b Design, Please comment
  83. 6AX4 datasheet question
  84. Bias Drift
  85. Recommend me a tube...
  86. What happens when Heater Cathode voltage is exceeded?
  87. 100uF Motor Run Caps
  88. HELP Schematics for RL 12 T 15
  89. Phono Stage
  90. TEE Vee Tube fans' SE Cf Amp
  91. Yaqin MC-10L losing volume
  92. Pl84 tubes
  93. AnalogMetric 6L6GC SE amp kit...thoughts about this kit?
  94. 5150 or slo 5-50w clone
  95. ECC88, warm up time
  96. Yaqin MC-10L Heater Voltage
  97. 6c33 otl amblifier
  98. self-oscillation in Dynaco ST-70
  99. computer tube tester
  100. Troubleshooting the decware se84 kit
  101. 6L6 PP problem
  102. First try at an Eagle Schematic/board
  103. opinions on decware zen kit
  104. Powerdrive for PP amp with local feedback and pentode driver ?
  105. having trouble calculating transconductance
  106. Philips console unit with reverb!
  107. 300BSET with Kimmel style mu driver ?
  108. Testing Mullard 12AU7 on Hickok 600A
  109. EL34/6CA7 driven 300B Schematics
  110. C450 Radio Craftsmen info needed
  111. Tubelab Simple SE v.2
  112. Magnetic shielding with aluminum
  113. lampizator dac
  114. AES is At It Again...
  115. Se Amp with Push Pull Transformer
  116. 6550 which breed can take the flog ?
  117. Chassis Question
  118. EL82 in triode with silverstepper (TVC)
  119. Joined the 12b4 line stage club. And worth it!
  120. ECL86/PCL86 Schematic
  121. Ambient temperature and tubes
  122. Vintage output transformers
  123. -ve grid voltage
  124. Ming Da MC-3008-A2 Mono Blocks
  125. V-Reg, Gyrator, Low (relative) voltage tubes
  126. Simple Tube amp
  127. Jolida 502A replace power switch
  128. Tubelab build selector switch question
  129. Matching tubes pot in old Fenders
  130. tubes supplier
  131. RadioDaze out of the tube business
  132. 8000+ hours on my Simple SE
  133. C-L-C-parallel-R-C
  134. musical power supplies
  135. Trimpots sound better than equivalent resistors for biasing?
  136. Anyone have a simple circuit for . .
  137. PP Tube Biasing, how good is good enough?
  138. Aesthetics
  139. Point to point, from scatch build of the K-12G
  140. What 6550 for Conrad MV75
  141. Motorboating phono input on Stromberg Carlson ASR433
  142. Sunn Sceptre: Weak Vibrato Cause?
  143. Pioneer sr-101
  144. 6AU6 in Push Pull: Opinions please
  145. Audionote M7 and Foreplay III
  146. vintage triode
  147. Help with design review wanted
  148. 6J52P pentode driver?
  149. a gutar amp I built
  150. Looking for a good valve preamp
  151. Anyone try the "Hazen mod" to G3 supressor grid
  152. 6L6GC -Which Shuguang can take the Heat?
  153. Using Toroidal PTs as tube OTs - methods and sources
  154. With a little help... KT88 PP UL Amp
  155. TechTube Featured In November AudioXpress
  156. Yaqin MC-100b channel imbalance
  157. Regulated Tube Preamp question
  158. Has anybody purchased from Mable Audio?
  159. PS voltage changes after capacitor replacement
  160. Non-magnetic bolts that hold an output transformer together
  161. Audio Innovations Series 500 Rewire
  162. Which audio electrolytics in tube voltages -- Your comments please !
  163. Some general opt questions.
  164. Looking for ANYTHING on the Audioromy 838 w/805A Tube..
  165. modifying zenith 7d31 amp console
  166. Questions on JE Labs transformer coupled line stage
  167. Onix/Melody SP3 Upgrades and Mods
  168. Motorboating with Regulated Supply
  169. 27 & 6SN7 Preamp - Crossover
  170. Budget 2A3?
  171. first go at design - pp
  172. Tube Amp for MP3 Player
  173. Sonic signatures of KT88, 300B, 805, 845 in SET & PP Configurations
  174. Marshall amp loses bias
  175. Building the Baby Huey EL84 pushpull amplifier
  176. Tube Voltage Regulator, Is it worth the effort?
  177. Best tubeamp for metal, tight bass
  178. Donor stereo 845 amp- now what!?
  179. "Optimal" output grid loading?
  180. wax poured out!
  181. Yet another do-nothing tOOb hack.
  182. What is a CCS - how do you design one?
  183. Strange Aikido problem when home power fluctuates
  184. Need to regulate 450v --> 300v
  185. new to the forum and looking for el86 info
  186. Why not invert the Tubelab SE board?
  187. Steve Bench Crossover Questions
  188. Audio Note M7 - 7F7 CCS
  189. Anyone have schema for katodcoupled 6C33 P-P?
  190. Ltspice and Valve models
  191. VTV Push-Pull 6SN7/KT88 Amp: DIY or China?
  192. How to identify type of bias used for my tube amp
  193. VR Tube Question
  194. Ampmaker Kits
  195. P-P with some muscle
  196. buzz w/ nothing plugged into inputs. Goes away once jacked in.
  197. CV6 / CV1135 / E1148 / VT232 VHF oscillator triode data
  198. HELP HELP HELP mesa rectifier
  199. simple se with source selector
  200. Measuring tube/component temperature
  201. Parallel Single Ended Amplifier Design using Acro TO-290s?
  202. Elevate heater trouble
  203. Adjusting the sensitivity on a 6e2 magic eye tube
  204. tube amp for automobile / need ideas
  205. 6550A HF Amp
  206. problem - scratchy sound, rythmical
  207. eico st70 irons!what to do?
  208. How Lampizator CD tube player sound?
  209. Maestro soya amplificador
  210. Can I use my tube amp as a preamp ?
  211. Simple SE with 6BG6GA - magic smoke escapes...
  212. Shunt Cascode Power Valve Driver
  213. Did Siemens ever publish data for their own D3A ?
  214. Motor run caps as power supply filter
  215. Measure unknown choke?
  216. 6528a....HELP ME PLEASE...PLEASE..
  217. Are any of these tubes useful to me?
  218. Heaters The Key Too Sweet Tube Tone.
  219. PP Output Transformer design
  220. "Kingfisher" P-P Amp using 7591A Outputs and Fisher 500B Iron
  221. 832 ultra-linear push pull?
  222. 3A5 thoughts
  223. ECC86 vs. ECC88
  224. RH84 builder!
  225. 10GV8 Bias point for the K-12G
  226. EL34 amp blowing up, anode glowing red hot
  227. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  228. Tubelab SE w/Parafeed
  229. Chinese 805 SET monoblock
  230. Vreg or Ireg for Phono heaters
  231. Traynor YMV-1 Voicemaster to Guitar conversion
  232. Pentode preamp tube hum balance
  233. New (old) Friends
  234. How to avoid oscillation and get max BW out of crappy OPT
  235. Power Measurements at normal listening levels
  236. Best way to terminate unused OPT winding?
  237. patent on single-ended amplifier, anno 2008
  238. Headphones amplifier with highish gnfb
  239. Bias meter for AQ1008DT
  240. Change Tubes
  241. PLC84 amp
  242. Color Coding for Fisher 500B Iron
  243. Tubelab SE with 45 tubes only
  244. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  245. 10dB increase in volume needs what gain?
  246. El Cheapo feedback loop adjustment
  247. KT88 blocks? With E80CC + 6922 driver?
  248. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  249. Violator Amp
  250. What to do with 3500uF 650V caps???

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