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  1. OTL ECC88 amp
  2. Bridging Mono Blocks
  3. Cathode-coupled Phase Splitter Formula
  4. Drd 45, 300b
  5. SV572-30: Opinions?
  6. Poor man's transformer volume control?
  7. Output current of this CAT SL-1 schematic ?
  8. Fixed Bias Circuit for 300B
  9. want to build SE450TL
  10. Tubes lifetime and sound
  11. Heater supply problem?
  12. Lowering HV secondary on Power Transformer
  13. Van der Veen 70W tube Amp DIY
  14. 5751 for marantz 7 linestage
  15. To be or not to be, UL or quad?
  16. Tube Failure
  17. 12AX7 Compared!
  18. transformer case grounding
  19. pre/amplifier grounding
  20. First Time Amp
  21. 6ck4 pp amp
  22. JJ electros, any good?
  23. 6AQ5A guitar amp revisited
  24. fun with amps
  25. Newbie needs clarification
  26. looking for powerful Single Ended diagram.
  27. Power amp output newbie question
  28. SE ultralinear amplifier generate a lot of Odd harmonics ?
  29. Grounding Filament CT?
  30. one more 12B4A preamp
  31. 6V6PP -> 6L6 PP with triode connection.
  32. ? about powering a sub with a Fisher 30a mono amp.
  33. Will This Blow Up?
  34. Pin out conversion 6V6-6AQ5A
  35. 211
  36. Nice looking rectifier tubes help
  37. Stepped attenuator inquiry
  38. Designing a Phonostage with the S&B 10K LCR RIAA Module
  39. 211 tube
  40. The T-Rex SET Amplifier DIY project
  41. Strange Wiring in Bogen 6v6 PP
  42. 6AS7 amp schematics
  43. Blue glow confused :(
  44. 6V6 SE and Screen Grid Voltage
  45. 6BQ5 <-> 6V6 without socket job...Any Idea?
  46. Melbourne, Australia valve enthusiasts check in!
  47. HELP! Blown R + HIGH V!
  48. PCB Pad Layout for B9A Noval
  49. DIY tube amps - help??
  50. New home made S.E amps
  51. Amplifier Oscillation
  52. First project, need guidance
  53. Cap max value after 6X5GT/EZ35 rectifier?
  54. Any tube-heads in Scotland?
  55. Care and Feeding of Tube Pins / Sockets
  56. MFA Luminescence--need schematic
  57. Tube technology amplifier
  58. Transformer questions
  59. Siemens C3g headamp problem
  60. rca83 hash?
  61. Skyline SK-10 Amplifier info?
  62. Tube Stereo Consoles from Thrift Stores
  63. Aikido amp theoretical questions
  64. 6V6 Single and 12AT7 SRPP
  65. What 45 SET amp should I build?
  66. Ping. Burnedfingers...
  67. ? problem with www.ampwares.com ?
  68. Pentode spud...?
  69. Type 46 as voltage amplifier
  70. Tube compressor problem!
  71. Using the 83
  72. Organ amp project
  73. Any feedback on these trannies?
  74. 300B PP bias and expected life time
  75. Mono block restoration
  76. Question about cathode bypass capacitor
  77. www.diytube.com Kits
  78. need help!
  79. Need opinion on PS for tube preamp.
  80. Stanley Mullard
  81. 6AK4, Anyone?
  82. interstage transformer
  83. Are matched sets important for this amp?
  84. What to do with ECC88's?
  85. EL38's ?
  86. Cables/tubes for Valve Amp
  87. 8233 / E55L Applications
  88. amplimo budget outputtransformer
  89. Output Transformers for WE-437a WOT Line Preamp
  90. plate resistor, input lead
  91. KT88 PP with Class-A/Class-AB switch
  92. very loud preamp
  93. Pentode current sink
  94. Hammond vs. James?
  95. Tubes for Scott Nixon dac
  96. James SE OPT for 300B & 2A3 on eBay
  97. pre-amp with 6as7??
  98. pre-amp with voltage gain from transformer only
  99. Help! Mystery tube (?) amp (type: HK56)
  100. Regulate the high voltage making better sound? (Preamp)
  101. Power Transformer
  102. Potentiometers UK
  103. AC 120V, neutral, hot, ground
  104. Counterpoint SA-220 Tube section advice needed
  105. 807 Amp
  106. Help me to choose the adequate ferrites
  107. Looking for KT88 circuits.
  108. Building a power amp - help
  109. Sovtek EL34WXT.
  110. Microphonic
  111. preamp gain and output transformer question
  112. Would an s5 K-12M kit suffice?
  113. 6c45 and passive volume control?
  114. Something of Interest to Newbies
  115. Fender Output transformer as an audio amp part
  116. Chinese Tube Amp & DIY .. Pro & Con
  117. Franks Ultimate Preamp....
  118. Interstage Transformer Nomenclature
  119. PP or SE for Horns?
  120. Output transformer in SIMetrix?
  121. seampcad
  122. Looking for an amp project
  123. Unison Research Smart 845 schematics
  124. HELP - From the audiophile Heads - Amp Advice
  125. 8233, 8116 &amp; 6BZ6 valves - what are they good for?
  126. wires of output transformer are too thin!
  127. Reichert Feral Eye
  128. BIG LOUD SCREECH on LEFT channel only
  129. humming from volume
  130. Paia TubeHead and Symmetry Trims
  131. Output trafo for WE-91 L'Audiophile amp?
  132. Transformer voltage too high for 300B amp
  133. More shopping help please - GE Combo 330
  134. Bias filtering
  135. PP pentode screen supply
  136. 6v6 and OPT with 10-12k ohm(primary impedence)
  137. Identity Help - Is it worth working on
  138. Need info about 5G84 tube
  139. RF Noise in Power Supply
  140. My audionote Kit one have problem on 300B cathode terminal
  141. Partial Feedback Amplifiers
  142. filament transformer vs plate transformer
  143. Any subs for 6N1 & 6N2 twin triode valves?
  144. PSU questions
  145. Any designs for 6EJ7 out there?
  146. SRPP headphoneamp with E88CC
  147. newbie to DIY
  148. Just bought a leak stereo 20 (pics!)
  149. Mysterious Output Transformer....
  150. Hum free 5687 AC filament supply, is it possable ?
  151. Will This Preamp Work
  152. help with input pot on el84 PP amp
  153. NOS Philmore Output Transformern or Modern
  154. tube amp
  155. power supply, Help please!!!
  156. Tubes and magnetic fields
  157. Driver tube for 45 interstage 1:1
  158. 89 db is it enough ?
  159. Troubl-shooting heater voltage for filament
  160. arcing in rectifier tube
  161. 1/8" Aluminum for top plate?
  162. Shopping list
  163. 6sn7 valves
  164. Neon flashes with the music
  165. Help in SE 807 amp
  166. naim user defects to valves !
  167. tamura opt need help
  168. Line stage question
  169. Tube question, how to read the difference.
  170. What Tube amp for Biginner?
  171. Leak Stereo 20 rebuild/restore question
  172. Is there any advantage in using preamp tubes in output stages ??
  173. 12b4 as PP output tubes
  174. Valves stripped bare….
  175. Anybody know this TUBE?
  176. Noob Q: are the efficiency figures for valve amps the same as with transistors?
  177. Need help understanding something about UL stages
  178. I'd like to make a simple 50 amplifier
  179. gates tube pre-amp info??
  180. OT - To those who correspond with me....
  181. Could use info on Grommes + knight.
  182. Single Ended Ultra linear, anyone built one?
  183. Audio Innovations 800 Anniversary problem
  184. Transformer coupled 6SN7 push-pull DAC output stage?
  185. Vkh max voltage
  186. Mosfet differences with valves
  187. Need schematic - Audio Research LS2B MKII
  188. EL84M specs.
  189. What to do with these?
  190. Dyna Mk IV Driver Boards
  191. OTL driving series arrays
  192. Voltage problem
  193. Amp intermittently blowing fuse at power up
  194. Worlds Best Preamp
  195. Heathkit TT-1A Calibration
  196. surplus 12ax7a
  197. Phase Splitter as input stage
  198. DHT DC heater question
  199. Wanted-Assembly manual for Scott LK-150
  200. Happy new year, sophielove.
  201. Need UTC PVM-3 primary ?
  202. power amp for small studio
  203. Preamp
  204. Problems with EICO HF-12 amp.
  205. Technics SU-30A's schema???
  206. Tube PWM driver
  207. Tungsram tube data
  208. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  209. sharp cutoff pentode
  210. JJ E34L failure(s)
  211. Valve effects loop
  212. Bruce Moore "Companion" - Schematic
  213. CT impedence mismatch?
  214. Tube multiplex adapter parts replacement
  215. SY gets jiggy (5692 measurements)
  216. Tube Drag Racing!
  217. OTL, quick `n dirty
  218. 6V6 stereo amp
  219. humming from amplifier
  220. Mesa boogie
  221. Any tube audiophile in New Dephli, India
  222. What are terminal 1 & 4 of 300B tube
  223. Tube Nube - need advice on Scott LK150
  224. Pentode AB1 or AB2?
  225. #56 tube line stage
  226. **** another unusual hum problem !!
  227. Any comments on Eico HF-14 and HF-85
  228. sensitivities of amplifier configurations
  229. Building a Sun Audio sv 300b Mk II clone
  230. wanted information! vellman vaa-70 tube amp
  231. old tubes, what to do?
  232. Knowledge needed. Need answer to basic yet puzzling question.
  233. tubes 5965A and 5814A
  234. 6s4a as driver for 6as7 in SEAmp
  235. Tube Manufactures Cross references
  236. KT88 vs. KT90 bench test
  237. Variable Voltage Technology(uk) iron
  238. Tutorial: building techniques
  239. Anyone tried UL or Triode connecting the $140 kit ?
  240. Using microphone transformers as phase splitters .
  241. Tube Cooling Recommendations
  242. WE 300B Vs &amp;&amp;&amp;&amp;
  243. Line stage board off from overseas. problems
  244. Volume control for tube amplifier ??
  245. Mro Pt8
  246. looking for se 811 schematics
  247. 6ar5??
  248. bias meter
  249. 829B/3E29 datasheet triodemode
  250. A better triode strap?

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