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  1. Aikido amp theoretical questions
  2. 6V6 Single and 12AT7 SRPP
  3. What 45 SET amp should I build?
  4. Ping. Burnedfingers...
  5. ? problem with www.ampwares.com ?
  6. Pentode spud...?
  7. Type 46 as voltage amplifier
  8. Tube compressor problem!
  9. Using the 83
  10. Organ amp project
  11. Any feedback on these trannies?
  12. 300B PP bias and expected life time
  13. Mono block restoration
  14. Question about cathode bypass capacitor
  15. www.diytube.com Kits
  16. need help!
  17. Need opinion on PS for tube preamp.
  18. Stanley Mullard
  19. 6AK4, Anyone?
  20. interstage transformer
  21. Are matched sets important for this amp?
  22. What to do with ECC88's?
  23. EL38's ?
  24. Cables/tubes for Valve Amp
  25. 8233 / E55L Applications
  26. amplimo budget outputtransformer
  27. Output Transformers for WE-437a WOT Line Preamp
  28. plate resistor, input lead
  29. KT88 PP with Class-A/Class-AB switch
  30. very loud preamp
  31. Pentode current sink
  32. Hammond vs. James?
  33. Tubes for Scott Nixon dac
  34. James SE OPT for 300B & 2A3 on eBay
  35. pre-amp with 6as7??
  36. pre-amp with voltage gain from transformer only
  37. Help! Mystery tube (?) amp (type: HK56)
  38. Regulate the high voltage making better sound? (Preamp)
  39. Power Transformer
  40. Potentiometers UK
  41. AC 120V, neutral, hot, ground
  42. Counterpoint SA-220 Tube section advice needed
  43. 807 Amp
  44. Help me to choose the adequate ferrites
  45. Looking for KT88 circuits.
  46. Building a power amp - help
  47. Sovtek EL34WXT.
  48. Microphonic
  49. preamp gain and output transformer question
  50. Would an s5 K-12M kit suffice?
  51. 6c45 and passive volume control?
  52. Something of Interest to Newbies
  53. Fender Output transformer as an audio amp part
  54. Chinese Tube Amp & DIY .. Pro & Con
  55. Franks Ultimate Preamp....
  56. Interstage Transformer Nomenclature
  57. PP or SE for Horns?
  58. Output transformer in SIMetrix?
  59. seampcad
  60. Looking for an amp project
  61. Unison Research Smart 845 schematics
  62. 8233, 8116 & 6BZ6 valves - what are they good for?
  63. HELP - From the audiophile Heads - Amp Advice
  64. wires of output transformer are too thin!
  65. Reichert Feral Eye
  66. BIG LOUD SCREECH on LEFT channel only
  67. humming from volume
  68. Paia TubeHead and Symmetry Trims
  69. Output trafo for WE-91 L'Audiophile amp?
  70. Transformer voltage too high for 300B amp
  71. More shopping help please - GE Combo 330
  72. Bias filtering
  73. PP pentode screen supply
  74. 6v6 and OPT with 10-12k ohm(primary impedence)
  75. Identity Help - Is it worth working on
  76. Need info about 5G84 tube
  77. RF Noise in Power Supply
  78. My audionote Kit one have problem on 300B cathode terminal
  79. Partial Feedback Amplifiers
  80. filament transformer vs plate transformer
  81. Any subs for 6N1 & 6N2 twin triode valves?
  82. PSU questions
  83. Any designs for 6EJ7 out there?
  84. SRPP headphoneamp with E88CC
  85. newbie to DIY
  86. Just bought a leak stereo 20 (pics!)
  87. Mysterious Output Transformer....
  88. Hum free 5687 AC filament supply, is it possable ?
  89. Will This Preamp Work
  90. help with input pot on el84 PP amp
  91. NOS Philmore Output Transformern or Modern
  92. tube amp
  93. power supply, Help please!!!
  94. Tubes and magnetic fields
  95. Driver tube for 45 interstage 1:1
  96. 89 db is it enough ?
  97. Troubl-shooting heater voltage for filament
  98. arcing in rectifier tube
  99. 1/8" Aluminum for top plate?
  100. Shopping list
  101. 6sn7 valves
  102. Neon flashes with the music
  103. Help in SE 807 amp
  104. naim user defects to valves !
  105. tamura opt need help
  106. Line stage question
  107. Tube question, how to read the difference.
  108. What Tube amp for Biginner?
  109. Leak Stereo 20 rebuild/restore question
  110. Is there any advantage in using preamp tubes in output stages ??
  111. 12b4 as PP output tubes
  112. Valves stripped bare….
  113. Anybody know this TUBE?
  114. Noob Q: are the efficiency figures for valve amps the same as with transistors?
  115. Need help understanding something about UL stages
  116. I'd like to make a simple 50 amplifier
  117. gates tube pre-amp info??
  118. OT - To those who correspond with me....
  119. Could use info on Grommes + knight.
  120. Single Ended Ultra linear, anyone built one?
  121. Audio Innovations 800 Anniversary problem
  122. Transformer coupled 6SN7 push-pull DAC output stage?
  123. Vkh max voltage
  124. Mosfet differences with valves
  125. Need schematic - Audio Research LS2B MKII
  126. EL84M specs.
  127. What to do with these?
  128. Dyna Mk IV Driver Boards
  129. OTL driving series arrays
  130. Voltage problem
  131. Amp intermittently blowing fuse at power up
  132. Worlds Best Preamp
  133. Heathkit TT-1A Calibration
  134. surplus 12ax7a
  135. Phase Splitter as input stage
  136. DHT DC heater question
  137. Wanted-Assembly manual for Scott LK-150
  138. Happy new year, sophielove.
  139. Need UTC PVM-3 primary ?
  140. power amp for small studio
  141. Preamp
  142. Problems with EICO HF-12 amp.
  143. Technics SU-30A's schema???
  144. Tube PWM driver
  145. Tungsram tube data
  146. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  147. sharp cutoff pentode
  148. JJ E34L failure(s)
  149. Valve effects loop
  150. Bruce Moore "Companion" - Schematic
  151. CT impedence mismatch?
  152. Tube multiplex adapter parts replacement
  153. SY gets jiggy (5692 measurements)
  154. Tube Drag Racing!
  155. OTL, quick `n dirty
  156. 6V6 stereo amp
  157. humming from amplifier
  158. Mesa boogie
  159. Any tube audiophile in New Dephli, India
  160. What are terminal 1 & 4 of 300B tube
  161. Tube Nube - need advice on Scott LK150
  162. Pentode AB1 or AB2?
  163. #56 tube line stage
  164. **** another unusual hum problem !!
  165. Any comments on Eico HF-14 and HF-85
  166. sensitivities of amplifier configurations
  167. Building a Sun Audio sv 300b Mk II clone
  168. wanted information! vellman vaa-70 tube amp
  169. old tubes, what to do?
  170. Knowledge needed. Need answer to basic yet puzzling question.
  171. tubes 5965A and 5814A
  172. 6s4a as driver for 6as7 in SEAmp
  173. Tube Manufactures Cross references
  174. KT88 vs. KT90 bench test
  175. Variable Voltage Technology(uk) iron
  176. Tutorial: building techniques
  177. Anyone tried UL or Triode connecting the $140 kit ?
  178. Using microphone transformers as phase splitters .
  179. Tube Cooling Recommendations
  180. WE 300B Vs &&&&
  181. Line stage board off from overseas. problems
  182. Volume control for tube amplifier ??
  183. Mro Pt8
  184. looking for se 811 schematics
  185. 6ar5??
  186. bias meter
  187. 829B/3E29 datasheet triodemode
  188. A better triode strap?
  189. outputtransformer data needed
  190. info wanted about a output transformer
  191. WE316a/VT191 triode
  192. electrolytic can capacitor
  193. Bogen DS-225
  194. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  195. 6V6GT and 6L6GT
  196. Unknown vaccumtubes
  197. Milleroux OPT
  198. Tube equalents.
  199. Western Electric 300B
  200. AVVT Tubes
  201. PAS phono. (curcio)
  202. Suitable Transformer for Etude 12B4A
  203. SE tube in mono amp
  204. Pentode current sink - how to connect the control grid?
  205. where are audio equipments in Beijing?
  206. Mullard 3-3 Question
  207. Grounded Grid w/ remote volume
  208. Modifying (Reducing) Screen Voltage
  209. coupling caps
  210. Single Stage Inverting or no?
  211. Using KT88 to build a monster champ amp?
  212. bias arrangements for P-P amps.
  213. Beginner's heaphone amp?
  214. Bridging
  215. Valve circuit in I, Robot
  216. ECC33, 34, 35 tubes?
  217. Help!! any good EL3n Push Pull circuits????
  218. What PP circuit to use for 6SN7 and 2a3?
  219. Stage classification and efficiency
  220. 2x8w SET choice.
  221. 10-15 mu DHT?
  222. Possible computer speaker amp
  223. Help me make a preamp decision
  224. Plitron PAT4006 - advice please
  225. Big valve
  226. Need help with PP pentode design
  227. EQ-circuits.
  228. measuring the power choke inductance confusion
  229. Single-end... which tube?
  230. bias voltage for 6BQ5 plate
  231. Fender Twin
  232. small poweramp with 12AH7 and 6AU6WA...
  233. Layout Check
  234. auto component placer with tube PCB prints
  235. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  236. Audio Electronics Supply AE-1 problems
  237. Cunningham CX 301A
  238. Quicksilver zener diode mod
  239. ELC7? I need help to identify this valve
  240. Spice 3f4 "Koren" models
  241. parallel or push-pull
  242. Isolation
  243. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  244. Magic Gu15
  245. Help identifing RCA transformer
  246. Problem with tube overheating. PLEASE HELP
  247. Battery powered phono.
  248. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  249. converting Heathkit AA-191 to a guitar amp
  250. Has anyone used a triode as a shunt regulator?

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