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  1. Any subs for 6N1 & 6N2 twin triode valves?
  2. PSU questions
  3. Any designs for 6EJ7 out there?
  4. SRPP headphoneamp with E88CC
  5. newbie to DIY
  6. Just bought a leak stereo 20 (pics!)
  7. Mysterious Output Transformer....
  8. Hum free 5687 AC filament supply, is it possable ?
  9. Will This Preamp Work
  10. help with input pot on el84 PP amp
  11. NOS Philmore Output Transformern or Modern
  12. tube amp
  13. power supply, Help please!!!
  14. Tubes and magnetic fields
  15. Driver tube for 45 interstage 1:1
  16. 89 db is it enough ?
  17. Troubl-shooting heater voltage for filament
  18. arcing in rectifier tube
  19. 1/8" Aluminum for top plate?
  20. Shopping list
  21. 6sn7 valves
  22. Neon flashes with the music
  23. Help in SE 807 amp
  24. naim user defects to valves !
  25. tamura opt need help
  26. Line stage question
  27. Tube question, how to read the difference.
  28. What Tube amp for Biginner?
  29. Leak Stereo 20 rebuild/restore question
  30. Is there any advantage in using preamp tubes in output stages ??
  31. 12b4 as PP output tubes
  32. Valves stripped bare….
  33. Anybody know this TUBE?
  34. Noob Q: are the efficiency figures for valve amps the same as with transistors?
  35. Need help understanding something about UL stages
  36. I'd like to make a simple 50 amplifier
  37. gates tube pre-amp info??
  38. OT - To those who correspond with me....
  39. Could use info on Grommes + knight.
  40. Single Ended Ultra linear, anyone built one?
  41. Audio Innovations 800 Anniversary problem
  42. Transformer coupled 6SN7 push-pull DAC output stage?
  43. Vkh max voltage
  44. Mosfet differences with valves
  45. Need schematic - Audio Research LS2B MKII
  46. EL84M specs.
  47. What to do with these?
  48. Dyna Mk IV Driver Boards
  49. OTL driving series arrays
  50. Voltage problem
  51. Amp intermittently blowing fuse at power up
  52. Worlds Best Preamp
  53. Heathkit TT-1A Calibration
  54. surplus 12ax7a
  55. Phase Splitter as input stage
  56. DHT DC heater question
  57. Wanted-Assembly manual for Scott LK-150
  58. Happy new year, sophielove.
  59. Need UTC PVM-3 primary ?
  60. power amp for small studio
  61. Preamp
  62. Problems with EICO HF-12 amp.
  63. Technics SU-30A's schema???
  64. Tube PWM driver
  65. Tungsram tube data
  66. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  67. sharp cutoff pentode
  68. JJ E34L failure(s)
  69. Valve effects loop
  70. Bruce Moore "Companion" - Schematic
  71. CT impedence mismatch?
  72. Tube multiplex adapter parts replacement
  73. SY gets jiggy (5692 measurements)
  74. Tube Drag Racing!
  75. OTL, quick `n dirty
  76. 6V6 stereo amp
  77. humming from amplifier
  78. Mesa boogie
  79. Any tube audiophile in New Dephli, India
  80. What are terminal 1 & 4 of 300B tube
  81. Tube Nube - need advice on Scott LK150
  82. Pentode AB1 or AB2?
  83. #56 tube line stage
  84. **** another unusual hum problem !!
  85. Any comments on Eico HF-14 and HF-85
  86. sensitivities of amplifier configurations
  87. Building a Sun Audio sv 300b Mk II clone
  88. wanted information! vellman vaa-70 tube amp
  89. old tubes, what to do?
  90. Knowledge needed. Need answer to basic yet puzzling question.
  91. tubes 5965A and 5814A
  92. 6s4a as driver for 6as7 in SEAmp
  93. Tube Manufactures Cross references
  94. KT88 vs. KT90 bench test
  95. Variable Voltage Technology(uk) iron
  96. Tutorial: building techniques
  97. Anyone tried UL or Triode connecting the $140 kit ?
  98. Using microphone transformers as phase splitters .
  99. Tube Cooling Recommendations
  100. WE 300B Vs &&&&
  101. Line stage board off from overseas. problems
  102. Volume control for tube amplifier ??
  103. Mro Pt8
  104. looking for se 811 schematics
  105. 6ar5??
  106. bias meter
  107. 829B/3E29 datasheet triodemode
  108. A better triode strap?
  109. outputtransformer data needed
  110. info wanted about a output transformer
  111. WE316a/VT191 triode
  112. electrolytic can capacitor
  113. Bogen DS-225
  114. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  115. 6V6GT and 6L6GT
  116. Unknown vaccumtubes
  117. Milleroux OPT
  118. Tube equalents.
  119. Western Electric 300B
  120. AVVT Tubes
  121. PAS phono. (curcio)
  122. Suitable Transformer for Etude 12B4A
  123. SE tube in mono amp
  124. Pentode current sink - how to connect the control grid?
  125. where are audio equipments in Beijing?
  126. Mullard 3-3 Question
  127. Grounded Grid w/ remote volume
  128. Modifying (Reducing) Screen Voltage
  129. coupling caps
  130. Single Stage Inverting or no?
  131. Using KT88 to build a monster champ amp?
  132. bias arrangements for P-P amps.
  133. Beginner's heaphone amp?
  134. Bridging
  135. Valve circuit in I, Robot
  136. ECC33, 34, 35 tubes?
  137. Help!! any good EL3n Push Pull circuits????
  138. What PP circuit to use for 6SN7 and 2a3?
  139. Stage classification and efficiency
  140. 2x8w SET choice.
  141. 10-15 mu DHT?
  142. Possible computer speaker amp
  143. Help me make a preamp decision
  144. Plitron PAT4006 - advice please
  145. Big valve
  146. Need help with PP pentode design
  147. EQ-circuits.
  148. measuring the power choke inductance confusion
  149. Single-end... which tube?
  150. bias voltage for 6BQ5 plate
  151. Fender Twin
  152. small poweramp with 12AH7 and 6AU6WA...
  153. Layout Check
  154. auto component placer with tube PCB prints
  155. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  156. Audio Electronics Supply AE-1 problems
  157. Cunningham CX 301A
  158. Quicksilver zener diode mod
  159. ELC7? I need help to identify this valve
  160. Spice 3f4 "Koren" models
  161. parallel or push-pull
  162. Isolation
  163. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  164. Magic Gu15
  165. Help identifing RCA transformer
  166. Problem with tube overheating. PLEASE HELP
  167. Battery powered phono.
  168. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  169. converting Heathkit AA-191 to a guitar amp
  170. Has anyone used a triode as a shunt regulator?
  171. EL84 SE design recommendations?
  172. need a good low parts phono tube preamp schematic....
  173. Shunt Feedback - effect on input impedance
  174. searching bogen db10a schematic
  175. Swinging choke?
  176. Schematic help. (thread split)
  177. Playing with a Magic Eye.
  178. A music coming from component.
  179. DIY meeting in Belgium ?
  180. EL34 Push Pull weirdness
  181. Balancing DC-coupled differential stages
  182. Jadis JPS 2 schematic
  183. Leak Stereo20 rebuild ?
  184. Vintage amp rebuild advice
  185. simple 6v6 push-pull schematic ?
  186. valve newbie; 6H1H pre-amp.
  187. Polyprops as cathode bypass
  188. Eventual 300B advice welcome!
  189. Thinking about getting into Tubes, any kit recommendations?
  190. Another Mullard 5-20.
  191. Subbing EL86 (6CW5) for EL84
  192. Valve Warmer/Distortion PCB
  193. Having a problem with building this 6C45 PP amp.
  194. Blue glow in tube. Is the tube dead or not?
  195. Repairing VTL TL2.5
  196. Another ECL86 (integrated this time)
  197. CJ MV55 triode mode
  198. Mullard 20W Amp
  199. Pro Model Tubes,for example Avalon
  200. How to find out which is which????
  201. Matching a preamp to high output impedance source
  202. VSE PP1 driver stage
  203. Thordarson Choke type 1-8C42
  204. Ediswan ECL86 datasheet wanted.
  205. Minimal approach with hybrid rectification: Is this possible?
  206. SS vs. Tube Rectification (and chokes)?
  207. Biasing a guitar amp for distortion
  208. Help wanted on SRPP preamp
  209. New Pas Question no photos
  210. amp-schematic questions...
  211. 5902 subminiature audio pentode
  212. TPP versus PSE.
  213. my fun....
  214. Schematic for Siemens F2a tube amp
  215. Snubber
  216. Which preamp ?
  217. Distortion+low volume..
  218. JJ Tesla
  219. Dynaco Pas
  220. feedback resistor
  221. Grid stoppers?
  222. Transcendent T8 with 12 output tubes
  223. Can anyone recommend a good buffer circuit
  224. happy with my MC-25
  225. A building block approach to valve amp design
  226. math quiz- input z triode amp
  227. Need help in circuit analysis
  228. learning how to do this
  229. 5687 and ccs?
  230. Improving damping factor for OTL
  231. Solid State delay on turn on relay.
  232. output transformer 9030/3
  233. Dynaco MKIII: new power cord
  234. 50C5 add-on amp
  235. Finished my stereo amp!!
  236. spl for 300b, kt88
  237. 2A3 tube review
  238. Audio Transformer Query
  239. Lafayette Phono preamp.
  240. Power transformer help
  241. EL84 SE question
  242. Pop/crackle in one channel
  243. 6GM8 Operating Point
  244. Propper grounding.
  245. EL34 plate glowing?
  246. wavlength audio cardinal
  247. help for tube noob
  248. Placing the powertransformer
  249. Tube audio periodicals
  250. PSU Question

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