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

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