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  1. www.diytube.com Kits
  2. need help!
  3. Need opinion on PS for tube preamp.
  4. Stanley Mullard
  5. 6AK4, Anyone?
  6. interstage transformer
  7. Are matched sets important for this amp?
  8. What to do with ECC88's?
  9. EL38's ?
  10. Cables/tubes for Valve Amp
  11. 8233 / E55L Applications
  12. amplimo budget outputtransformer
  13. Output Transformers for WE-437a WOT Line Preamp
  14. plate resistor, input lead
  15. KT88 PP with Class-A/Class-AB switch
  16. very loud preamp
  17. Pentode current sink
  18. Hammond vs. James?
  19. Tubes for Scott Nixon dac
  20. James SE OPT for 300B & 2A3 on eBay
  21. pre-amp with 6as7??
  22. pre-amp with voltage gain from transformer only
  23. Help! Mystery tube (?) amp (type: HK56)
  24. Regulate the high voltage making better sound? (Preamp)
  25. Power Transformer
  26. Potentiometers UK
  27. AC 120V, neutral, hot, ground
  28. Counterpoint SA-220 Tube section advice needed
  29. 807 Amp
  30. Help me to choose the adequate ferrites
  31. Looking for KT88 circuits.
  32. Building a power amp - help
  33. Sovtek EL34WXT.
  34. Microphonic
  35. preamp gain and output transformer question
  36. Would an s5 K-12M kit suffice?
  37. 6c45 and passive volume control?
  38. Something of Interest to Newbies
  39. Fender Output transformer as an audio amp part
  40. Chinese Tube Amp & DIY .. Pro & Con
  41. Franks Ultimate Preamp....
  42. Interstage Transformer Nomenclature
  43. PP or SE for Horns?
  44. Output transformer in SIMetrix?
  45. seampcad
  46. Looking for an amp project
  47. Unison Research Smart 845 schematics
  48. 8233, 8116 & 6BZ6 valves - what are they good for?
  49. HELP - From the audiophile Heads - Amp Advice
  50. wires of output transformer are too thin!
  51. Reichert Feral Eye
  52. BIG LOUD SCREECH on LEFT channel only
  53. humming from volume
  54. Paia TubeHead and Symmetry Trims
  55. Output trafo for WE-91 L'Audiophile amp?
  56. Transformer voltage too high for 300B amp
  57. More shopping help please - GE Combo 330
  58. Bias filtering
  59. PP pentode screen supply
  60. 6v6 and OPT with 10-12k ohm(primary impedence)
  61. Identity Help - Is it worth working on
  62. Need info about 5G84 tube
  63. RF Noise in Power Supply
  64. My audionote Kit one have problem on 300B cathode terminal
  65. Partial Feedback Amplifiers
  66. filament transformer vs plate transformer
  67. Any subs for 6N1 & 6N2 twin triode valves?
  68. PSU questions
  69. Any designs for 6EJ7 out there?
  70. SRPP headphoneamp with E88CC
  71. newbie to DIY
  72. Just bought a leak stereo 20 (pics!)
  73. Mysterious Output Transformer....
  74. Hum free 5687 AC filament supply, is it possable ?
  75. Will This Preamp Work
  76. help with input pot on el84 PP amp
  77. NOS Philmore Output Transformern or Modern
  78. tube amp
  79. power supply, Help please!!!
  80. Tubes and magnetic fields
  81. Driver tube for 45 interstage 1:1
  82. 89 db is it enough ?
  83. Troubl-shooting heater voltage for filament
  84. arcing in rectifier tube
  85. 1/8" Aluminum for top plate?
  86. Shopping list
  87. 6sn7 valves
  88. Neon flashes with the music
  89. Help in SE 807 amp
  90. naim user defects to valves !
  91. tamura opt need help
  92. Line stage question
  93. Tube question, how to read the difference.
  94. What Tube amp for Biginner?
  95. Leak Stereo 20 rebuild/restore question
  96. Is there any advantage in using preamp tubes in output stages ??
  97. 12b4 as PP output tubes
  98. Valves stripped bare….
  99. Anybody know this TUBE?
  100. Noob Q: are the efficiency figures for valve amps the same as with transistors?
  101. Need help understanding something about UL stages
  102. I'd like to make a simple 50 amplifier
  103. gates tube pre-amp info??
  104. OT - To those who correspond with me....
  105. Could use info on Grommes + knight.
  106. Single Ended Ultra linear, anyone built one?
  107. Audio Innovations 800 Anniversary problem
  108. Transformer coupled 6SN7 push-pull DAC output stage?
  109. Vkh max voltage
  110. Mosfet differences with valves
  111. Need schematic - Audio Research LS2B MKII
  112. EL84M specs.
  113. What to do with these?
  114. Dyna Mk IV Driver Boards
  115. OTL driving series arrays
  116. Voltage problem
  117. Amp intermittently blowing fuse at power up
  118. Worlds Best Preamp
  119. Heathkit TT-1A Calibration
  120. surplus 12ax7a
  121. Phase Splitter as input stage
  122. DHT DC heater question
  123. Wanted-Assembly manual for Scott LK-150
  124. Happy new year, sophielove.
  125. Need UTC PVM-3 primary ?
  126. power amp for small studio
  127. Preamp
  128. Problems with EICO HF-12 amp.
  129. Technics SU-30A's schema???
  130. Tube PWM driver
  131. Tungsram tube data
  132. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  133. sharp cutoff pentode
  134. JJ E34L failure(s)
  135. Valve effects loop
  136. Bruce Moore "Companion" - Schematic
  137. CT impedence mismatch?
  138. Tube multiplex adapter parts replacement
  139. SY gets jiggy (5692 measurements)
  140. Tube Drag Racing!
  141. OTL, quick `n dirty
  142. 6V6 stereo amp
  143. humming from amplifier
  144. Mesa boogie
  145. Any tube audiophile in New Dephli, India
  146. What are terminal 1 & 4 of 300B tube
  147. Tube Nube - need advice on Scott LK150
  148. Pentode AB1 or AB2?
  149. #56 tube line stage
  150. **** another unusual hum problem !!
  151. Any comments on Eico HF-14 and HF-85
  152. sensitivities of amplifier configurations
  153. Building a Sun Audio sv 300b Mk II clone
  154. wanted information! vellman vaa-70 tube amp
  155. old tubes, what to do?
  156. Knowledge needed. Need answer to basic yet puzzling question.
  157. tubes 5965A and 5814A
  158. 6s4a as driver for 6as7 in SEAmp
  159. Tube Manufactures Cross references
  160. KT88 vs. KT90 bench test
  161. Variable Voltage Technology(uk) iron
  162. Tutorial: building techniques
  163. Anyone tried UL or Triode connecting the $140 kit ?
  164. Using microphone transformers as phase splitters .
  165. Tube Cooling Recommendations
  166. WE 300B Vs &&&&
  167. Line stage board off from overseas. problems
  168. Volume control for tube amplifier ??
  169. Mro Pt8
  170. looking for se 811 schematics
  171. 6ar5??
  172. bias meter
  173. 829B/3E29 datasheet triodemode
  174. A better triode strap?
  175. outputtransformer data needed
  176. info wanted about a output transformer
  177. WE316a/VT191 triode
  178. electrolytic can capacitor
  179. Bogen DS-225
  180. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  181. 6V6GT and 6L6GT
  182. Unknown vaccumtubes
  183. Milleroux OPT
  184. Tube equalents.
  185. Western Electric 300B
  186. AVVT Tubes
  187. PAS phono. (curcio)
  188. Suitable Transformer for Etude 12B4A
  189. SE tube in mono amp
  190. Pentode current sink - how to connect the control grid?
  191. where are audio equipments in Beijing?
  192. Mullard 3-3 Question
  193. Grounded Grid w/ remote volume
  194. Modifying (Reducing) Screen Voltage
  195. coupling caps
  196. Single Stage Inverting or no?
  197. Using KT88 to build a monster champ amp?
  198. bias arrangements for P-P amps.
  199. Beginner's heaphone amp?
  200. Bridging
  201. Valve circuit in I, Robot
  202. ECC33, 34, 35 tubes?
  203. Help!! any good EL3n Push Pull circuits????
  204. What PP circuit to use for 6SN7 and 2a3?
  205. Stage classification and efficiency
  206. 2x8w SET choice.
  207. 10-15 mu DHT?
  208. Possible computer speaker amp
  209. Help me make a preamp decision
  210. Plitron PAT4006 - advice please
  211. Big valve
  212. Need help with PP pentode design
  213. EQ-circuits.
  214. measuring the power choke inductance confusion
  215. Single-end... which tube?
  216. bias voltage for 6BQ5 plate
  217. Fender Twin
  218. small poweramp with 12AH7 and 6AU6WA...
  219. Layout Check
  220. auto component placer with tube PCB prints
  221. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  222. Audio Electronics Supply AE-1 problems
  223. Cunningham CX 301A
  224. Quicksilver zener diode mod
  225. ELC7? I need help to identify this valve
  226. Spice 3f4 "Koren" models
  227. parallel or push-pull
  228. Isolation
  229. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  230. Magic Gu15
  231. Help identifing RCA transformer
  232. Problem with tube overheating. PLEASE HELP
  233. Battery powered phono.
  234. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  235. converting Heathkit AA-191 to a guitar amp
  236. Has anyone used a triode as a shunt regulator?
  237. EL84 SE design recommendations?
  238. need a good low parts phono tube preamp schematic....
  239. Shunt Feedback - effect on input impedance
  240. searching bogen db10a schematic
  241. Swinging choke?
  242. Schematic help. (thread split)
  243. Playing with a Magic Eye.
  244. A music coming from component.
  245. DIY meeting in Belgium ?
  246. EL34 Push Pull weirdness
  247. Balancing DC-coupled differential stages
  248. Jadis JPS 2 schematic
  249. Leak Stereo20 rebuild ?
  250. Vintage amp rebuild advice

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