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  1. tube 100th
  2. Luxman OY15-5k OPT?
  3. Has anyone had experience with Russian 5C8S and 5C9S?
  4. New Here looking for info on rare SVIKO russian made 6KG6 monoblocks
  5. DC-DC converters
  6. EL 84 pp amp - simple regulated circuit sought
  7. Any tube amp to drive B&W 802D?
  8. New to valve amplifiers
  9. SE 6GW8 output transformer with 5 wires.
  10. Mr.Curwen's single ended adventures
  11. Tube magic eye with em84-sensitivity?!
  12. Tube test
  13. Brimar 6V6 USSR
  14. Construction Guides
  15. World Design KT88 Kit
  16. Opinions appreciated: Lafayette LA 224b vs. McIntosh 225
  17. Clone X10D problems distortion / saturation ... help!
  18. 12DW7 or 12AU7+12AX7 if stereo?
  19. First preamp and gain control
  20. Tube life..
  21. Berman 76 preamplifier, I need some advice please
  22. How to light GM70 tube as decorative?
  23. Old Tube amp missing tubes. HELP
  24. Going to Berlin, looking for electronics diy shops
  25. 6SJ7 Vs 6Ж8 - Can the russian tube be considered an equivalent tube ?
  26. 6L6G Tung-Sol reissue: sweet sound and delicious night sight, but...
  27. Help with Eico ST70
  28. Class-D and Tube buffer/preamp off same 12V SLA?
  29. Hard time to find High Voltage medium power linear BJT
  30. Gu50 or 1624 PP amp first trials
  31. cathode follower driver A2
  32. High Pass Filter for OTL headphone Amp
  33. Bewitch 6550 Balance Issue
  34. ground hum issues in an old peak st-100
  35. Need an APPJ PA0901A Mini Amp Output Transformer.
  36. VTL Tiny Triode Schematics?
  37. A question of dynamics: Amplifier design?
  38. Rechargeable battery for cathode bias: open discussion
  39. High quality tube socket for 4P1L tube ?
  40. VTL Schematic needed
  41. Diode rating for filament voltage doubler
  42. SE vs PP for SET amps
  43. Use "mu output" from depletion mode MOSFET load?
  44. GM70 SE mov rectifiers
  45. First Preamp build
  46. Fisher KX-200 driving a pair of ESL from the plates
  47. Disadvantages of unbalanced tube
  48. The anatomy of a vacuum toob
  49. Valve Amplification Company CLA1 mkii help
  50. leak stereo 20 channel imbalance
  51. Mains powered 20W submin bridge amp
  52. SS rectification ST70
  53. K-12g ultra fast diode mod UF4007
  54. WE46c..
  55. 10 Pin B10A socket
  56. RIAA network adjustment
  57. audio research sp16
  58. Visiting Japan
  59. "up-rating" power filter chokes
  60. Differential pair gain/ where to apply feedback
  61. EL84 ECC83 SE Amp schematic
  62. high B+ voltage drop
  63. Volume control chip
  64. Faylon P200 rebuild
  65. Signal Ground
  66. New to 6DJ8 tube
  67. EL91 Max ratings ? help
  68. I need a distraction!
  69. 300B amp project
  70. "bevois valley" in triode
  71. Strange problem wit a 3 tube preamplifier
  72. JJ Tesla vs. Electro Harmonix for Hi-Fi EL84 SE?
  73. This Tube CB make
  74. tubecad el84 powersupply ps4 question
  75. ART Tube MP studio V3 problems
  76. Calculating Cathode Bias w/o tube curves?
  77. Cathode follower PA Driver in a cathode biased amp
  78. I have my first Valve Amp, help me not blow it up!
  79. Unison Research SR-1 schematic/service manual
  80. Mega Tube DIY project
  81. very very simple single ended 300b valve amp schematic?
  82. 300b with single stage driver, c3m or?
  83. Cap upgrade for SVP RIAA stage
  84. Quick Q about JC's upside down front end.
  85. Bogen beasts again
  86. I thought this was a joke...but..
  87. Black pollution
  88. Difference between 6N1P and 6N23P?
  89. low voltage AC umbilical advice
  90. RCA MI-4288J Amplifier - Any info?
  91. 3.5k OPT for 45 type tube?
  92. DIY/OOTB upgrade? PP/SE?
  93. Sansui AU70
  94. Moody 496 Schematic Wanted
  95. Center-tapped Plate Choke vs. OPT for PP plate loads
  96. Help sourcing some resistors with very special values for a project
  97. Power Transformer Rating?
  98. KT120 x 4 / 240W Push Pull TUBE AMP MONOBLOCKS
  99. How Much Wiring??
  100. Schematic request for Meixing Mingda MC-211
  101. 300B SE with an interstage
  102. 211/845 tubes in a 805 based amp ?
  103. Grid leak bias, how does it work?
  104. Melos Sha Gold Reference
  105. Tube Amp for MTM
  106. Dynaco ST-70 Series III
  107. #27 + 6N8S Mu-Follower: Vhk Max Question
  108. Tube Mic preamp with compressor - any ideas?
  109. Counterpoint Sa-5000 and Klimo Kent - needed service manuals
  110. Drawing loadline using interstage / choosing interstage
  111. My New Iron for Single Ended 2a3
  112. GU-50 push pull amplifier
  113. 12SL7GT vs 12SN7GT
  114. DIY power amp and speakers
  115. KT88 SE
  116. Building a 6bq5 set amp
  117. OPT DC question
  118. Suitable speakers for a Leak Stereo 20
  119. Need advice on tube record player power jack.
  120. 12a_7 or 6SN7 phono preamp suggestions
  121. ECC99 as input stage for 300B?
  122. Drawbacks to over-speccing filament trannies?
  123. Thoughts on Western Electric amp redesign
  124. Adding choke to a power supply
  125. Broskie unbalancer and Aikido Help
  126. Mounting output tran and filter choke together
  127. Capacitors for tube amp rebuild
  128. Diving in, few questions
  129. SET Current Drop- Lack of Power, Saturation or Headroom?
  130. Power tubes: which is the maximum wire lenght for the cathode resistor to ground?
  131. Center Tapped Mains Transformer as Parafeed Plate Choke
  132. A tube newbie's review of the VTA ST-120
  133. Help Identifying Ebay Finds
  134. Led biasing or fixed biasing?
  135. diy vt-52 pushpull AMP
  136. Aikido Cathode Follower HUM Problem
  137. Superhet set HMV 438 Schematic help pls
  138. Output transformer for 100Hz and up
  139. Output transformers in series to simulate center-tap for push pull
  140. LED Biasing
  141. assembling a LITE LS-69 Hybrid Balance pre-amp
  142. Question about hifi power stage design
  143. Help with Magnavox EL84 Console restore
  144. Triode Loadline Simulator for dummies tutorial?
  145. Stromberg Carlson AP-54 schematic LTSPICE
  146. Resistor in series with S.E. O.T. ?
  147. Audio Valve Eklipse volume pot value?
  148. jensen vs mundorf
  149. 47 driving 300B questions
  150. 6T9 Amp
  151. Eico HF-32 PEC Loudness Circuit
  152. MV-100B tubes running extremely hot
  153. PCL 86 parafeed?
  154. Hammond 370FX
  155. Question about tube in Little Bear P8 - 6N5P
  156. Mini Pentode tube testing in Triode mode?
  157. Sencore Pr57 Iso Trans, Power Conditioner for amp?
  158. Is hot bias really sonic preferable versus cold bias ?
  159. Aikido Problem - B+ dropping too much
  160. Klemt Echolette M40 Schematic
  161. My S.E.T remade again - the DOS
  162. I need help to recognize these two vacuum tubes
  163. found a box...
  164. Advice on triode connecting a 'JZ6 tube
  165. Beard P100 pcb disassembly
  166. LM317 Heater 12ax7 ...not working
  167. 2A3 se amp power consumption
  168. "JJ" Tubes Vs other brands
  169. playing tube amps through a generator
  170. Need help with a preamp board I bought on eBay
  171. Question on Tube Rectifier..help please.
  172. 2A3 Hum Problems in SE (Please Help!)
  173. 240v to 110v for Sun Valley JB-300B
  174. Tubelab SPP Schematic
  175. SE output transformer
  176. single-ended.com annoyance
  177. A cheapo decent splitter
  178. Lightbulb Base Failure
  179. Madison Fielding Rcvr -- Filament Trick
  180. Converting from UL to Triode: Is this correct?
  181. white follower for driving mosfets.
  182. Distance between two audio input valves
  183. Series Caps on Power Supply
  184. Most expensive parts in DIY tube amp
  185. Filter Choke Selection
  186. 6072A as DAC outputstage
  187. adapting line level to suitcase record player
  188. Aikido Noval Stereo Questions
  189. 100K 2CH Volume pot recommendation
  190. Another Daft Idea
  191. Allen Model 75 user feedback needed
  192. My perfect 6550 PP amp :)
  193. Marantz 8b power transformer - open winding
  194. Chassis Grounding/ Comment on Chinese Schematic SRK-09
  195. Mini Carver Silver Seven?
  196. Using EL34 for allen wright's pp-2c
  197. Ampex 6973 mono blocks
  198. Antique Sound Lab AQ 2001 preamp issues
  199. Quad II hums
  200. Musical Fidelity XCAN V1
  201. Cathode Follower high power class B grid driver
  202. McIntosh MC 60 bias/voltage problem
  203. how to add a sub amp in parallel to S5-12G tube amplifier
  204. 5U4GB (rectifier) Arcing - What to think?
  205. I found these ripped pieces of paper..
  206. chassis grounding questions
  207. motorola ecl82 3 channel amp?
  208. Parallel Push Pull Circuit?
  209. Older valve amps chassis grounding
  210. Just about settled on building my first amp.
  211. 6L6 Triode AB Push/Pull Pout
  212. Schade and CFB exactly equivalent
  213. need some advice on updating this one
  214. Abdellah KT88 cathode follower addition?
  215. Where to buy vacuum tubes in Hong Kong city?
  216. Help needed on restoring a Bogen AP-200 amp
  217. homemade case for a homemade amplifier
  218. Two driver options for 300B push pull
  219. Heath Williamson type W-3M
  220. 6n3c 12ax7 amplifier
  221. HELP needed to design/build DRD 6C33C SET
  222. k12g left channel is out
  223. Yaqin MC-100B... anyone modded for tape loop?
  224. Simple Se build, Which tube?
  225. Re-thinking Hybrid!
  226. History of RIAA standards
  227. GU48/833A medium power SET
  228. Bass control causing hum + no bass from left channel
  229. bad PX4? dark blue glow
  230. Soft Start/bucking transformer For Marantz 9 Monoblocks
  231. Direct coupling with CCS
  232. 407A/B Preamp
  233. Bad 845 tube? (video link)
  234. Blues Jr. Mods
  235. Dynaco PAS 4
  236. OTL Amplifier in 1990 Glass Audio Magazine
  237. Volume drop when playing and hiss noise at turning off from one channel
  238. OPT in or near loudspeaker?
  239. Soft start for tube amplifier
  240. Transformer Sizing, etc
  241. 4P1L filament oscillation
  242. Toroidal power transformers in a tube amp
  243. No left channel output
  244. Conrar Johnson PV-10 squeal!
  245. Need expert help on EL34 SE tube amplifier.
  246. Coupling Caps
  247. 12pin/compactron tube socket
  248. Aikido audio problem w/ mains voltage fluctuations
  249. Radford STA-12
  250. New popping sound from my amp

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