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  1. DIY tube amps - help??
  2. New home made S.E amps
  3. Amplifier Oscillation
  4. First project, need guidance
  5. Cap max value after 6X5GT/EZ35 rectifier?
  6. Any tube-heads in Scotland?
  7. Care and Feeding of Tube Pins / Sockets
  8. MFA Luminescence--need schematic
  9. Tube technology amplifier
  10. Transformer questions
  11. Siemens C3g headamp problem
  12. rca83 hash?
  13. Skyline SK-10 Amplifier info?
  14. Tube Stereo Consoles from Thrift Stores
  15. Aikido amp theoretical questions
  16. 6V6 Single and 12AT7 SRPP
  17. What 45 SET amp should I build?
  18. Ping. Burnedfingers...
  19. ? problem with www.ampwares.com ?
  20. Pentode spud...?
  21. Type 46 as voltage amplifier
  22. Tube compressor problem!
  23. Using the 83
  24. Organ amp project
  25. Any feedback on these trannies?
  26. 300B PP bias and expected life time
  27. Mono block restoration
  28. Question about cathode bypass capacitor
  29. www.diytube.com Kits
  30. need help!
  31. Need opinion on PS for tube preamp.
  32. Stanley Mullard
  33. 6AK4, Anyone?
  34. interstage transformer
  35. Are matched sets important for this amp?
  36. What to do with ECC88's?
  37. EL38's ?
  38. Cables/tubes for Valve Amp
  39. 8233 / E55L Applications
  40. amplimo budget outputtransformer
  41. Output Transformers for WE-437a WOT Line Preamp
  42. plate resistor, input lead
  43. KT88 PP with Class-A/Class-AB switch
  44. very loud preamp
  45. Pentode current sink
  46. Hammond vs. James?
  47. Tubes for Scott Nixon dac
  48. James SE OPT for 300B & 2A3 on eBay
  49. pre-amp with 6as7??
  50. pre-amp with voltage gain from transformer only
  51. Help! Mystery tube (?) amp (type: HK56)
  52. Regulate the high voltage making better sound? (Preamp)
  53. Power Transformer
  54. Potentiometers UK
  55. AC 120V, neutral, hot, ground
  56. Counterpoint SA-220 Tube section advice needed
  57. 807 Amp
  58. Help me to choose the adequate ferrites
  59. Looking for KT88 circuits.
  60. Building a power amp - help
  61. Sovtek EL34WXT.
  62. Microphonic
  63. preamp gain and output transformer question
  64. Would an s5 K-12M kit suffice?
  65. 6c45 and passive volume control?
  66. Something of Interest to Newbies
  67. Chinese Tube Amp & DIY .. Pro & Con
  68. Franks Ultimate Preamp....
  69. Interstage Transformer Nomenclature
  70. PP or SE for Horns?
  71. Output transformer in SIMetrix?
  72. seampcad
  73. Looking for an amp project
  74. Unison Research Smart 845 schematics
  75. 8233, 8116 & 6BZ6 valves - what are they good for?
  76. HELP - From the audiophile Heads - Amp Advice
  77. wires of output transformer are too thin!
  78. Reichert Feral Eye
  79. BIG LOUD SCREECH on LEFT channel only
  80. humming from volume
  81. Paia TubeHead and Symmetry Trims
  82. Output trafo for WE-91 L'Audiophile amp?
  83. Transformer voltage too high for 300B amp
  84. More shopping help please - GE Combo 330
  85. Bias filtering
  86. PP pentode screen supply
  87. 6v6 and OPT with 10-12k ohm(primary impedence)
  88. Identity Help - Is it worth working on
  89. Need info about 5G84 tube
  90. RF Noise in Power Supply
  91. My audionote Kit one have problem on 300B cathode terminal
  92. Partial Feedback Amplifiers
  93. filament transformer vs plate transformer
  94. Any subs for 6N1 & 6N2 twin triode valves?
  95. PSU questions
  96. Any designs for 6EJ7 out there?
  97. SRPP headphoneamp with E88CC
  98. newbie to DIY
  99. Just bought a leak stereo 20 (pics!)
  100. Mysterious Output Transformer....
  101. Hum free 5687 AC filament supply, is it possable ?
  102. Will This Preamp Work
  103. help with input pot on el84 PP amp
  104. NOS Philmore Output Transformern or Modern
  105. tube amp
  106. power supply, Help please!!!
  107. Tubes and magnetic fields
  108. Driver tube for 45 interstage 1:1
  109. 89 db is it enough ?
  110. Troubl-shooting heater voltage for filament
  111. arcing in rectifier tube
  112. 1/8" Aluminum for top plate?
  113. Shopping list
  114. 6sn7 valves
  115. Neon flashes with the music
  116. Help in SE 807 amp
  117. naim user defects to valves !
  118. tamura opt need help
  119. Line stage question
  120. Tube question, how to read the difference.
  121. What Tube amp for Biginner?
  122. Leak Stereo 20 rebuild/restore question
  123. Is there any advantage in using preamp tubes in output stages ??
  124. 12b4 as PP output tubes
  125. Valves stripped bare….
  126. Anybody know this TUBE?
  127. Noob Q: are the efficiency figures for valve amps the same as with transistors?
  128. Need help understanding something about UL stages
  129. I'd like to make a simple 50 amplifier
  130. gates tube pre-amp info??
  131. OT - To those who correspond with me....
  132. Could use info on Grommes + knight.
  133. Single Ended Ultra linear, anyone built one?
  134. Audio Innovations 800 Anniversary problem
  135. Transformer coupled 6SN7 push-pull DAC output stage?
  136. Vkh max voltage
  137. Mosfet differences with valves
  138. Need schematic - Audio Research LS2B MKII
  139. EL84M specs.
  140. What to do with these?
  141. Dyna Mk IV Driver Boards
  142. OTL driving series arrays
  143. Voltage problem
  144. Amp intermittently blowing fuse at power up
  145. Worlds Best Preamp
  146. Heathkit TT-1A Calibration
  147. surplus 12ax7a
  148. Phase Splitter as input stage
  149. DHT DC heater question
  150. Wanted-Assembly manual for Scott LK-150
  151. Happy new year, sophielove.
  152. Need UTC PVM-3 primary ?
  153. power amp for small studio
  154. Preamp
  155. Problems with EICO HF-12 amp.
  156. Technics SU-30A's schema???
  157. Tube PWM driver
  158. Tungsram tube data
  159. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  160. sharp cutoff pentode
  161. JJ E34L failure(s)
  162. Valve effects loop
  163. Bruce Moore "Companion" - Schematic
  164. CT impedence mismatch?
  165. Tube multiplex adapter parts replacement
  166. SY gets jiggy (5692 measurements)
  167. Tube Drag Racing!
  168. OTL, quick `n dirty
  169. 6V6 stereo amp
  170. humming from amplifier
  171. Any tube audiophile in New Dephli, India
  172. What are terminal 1 & 4 of 300B tube
  173. Tube Nube - need advice on Scott LK150
  174. Pentode AB1 or AB2?
  175. #56 tube line stage
  176. **** another unusual hum problem !!
  177. Any comments on Eico HF-14 and HF-85
  178. sensitivities of amplifier configurations
  179. Building a Sun Audio sv 300b Mk II clone
  180. wanted information! vellman vaa-70 tube amp
  181. old tubes, what to do?
  182. Knowledge needed. Need answer to basic yet puzzling question.
  183. tubes 5965A and 5814A
  184. 6s4a as driver for 6as7 in SEAmp
  185. Tube Manufactures Cross references
  186. KT88 vs. KT90 bench test
  187. Variable Voltage Technology(uk) iron
  188. Tutorial: building techniques
  189. Anyone tried UL or Triode connecting the $140 kit ?
  190. Using microphone transformers as phase splitters .
  191. Tube Cooling Recommendations
  192. WE 300B Vs &&&&
  193. Line stage board off from overseas. problems
  194. Volume control for tube amplifier ??
  195. Mro Pt8
  196. looking for se 811 schematics
  197. 6ar5??
  198. bias meter
  199. 829B/3E29 datasheet triodemode
  200. A better triode strap?
  201. outputtransformer data needed
  202. info wanted about a output transformer
  203. WE316a/VT191 triode
  204. Bogen DS-225
  205. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  206. 6V6GT and 6L6GT
  207. Unknown vaccumtubes
  208. Milleroux OPT
  209. Tube equalents.
  210. Western Electric 300B
  211. AVVT Tubes
  212. PAS phono. (curcio)
  213. Suitable Transformer for Etude 12B4A
  214. SE tube in mono amp
  215. Pentode current sink - how to connect the control grid?
  216. where are audio equipments in Beijing?
  217. Mullard 3-3 Question
  218. Grounded Grid w/ remote volume
  219. Modifying (Reducing) Screen Voltage
  220. Single Stage Inverting or no?
  221. bias arrangements for P-P amps.
  222. Beginner's heaphone amp?
  223. Bridging
  224. Valve circuit in I, Robot
  225. ECC33, 34, 35 tubes?
  226. Help!! any good EL3n Push Pull circuits????
  227. What PP circuit to use for 6SN7 and 2a3?
  228. Stage classification and efficiency
  229. 2x8w SET choice.
  230. 10-15 mu DHT?
  231. Possible computer speaker amp
  232. Help me make a preamp decision
  233. Plitron PAT4006 - advice please
  234. Big valve
  235. Need help with PP pentode design
  236. EQ-circuits.
  237. measuring the power choke inductance confusion
  238. Single-end... which tube?
  239. bias voltage for 6BQ5 plate
  240. small poweramp with 12AH7 and 6AU6WA...
  241. Layout Check
  242. auto component placer with tube PCB prints
  243. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  244. Audio Electronics Supply AE-1 problems
  245. Cunningham CX 301A
  246. Quicksilver zener diode mod
  247. ELC7? I need help to identify this valve
  248. Spice 3f4 "Koren" models
  249. parallel or push-pull
  250. Isolation

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