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  1. Beefing up EL34 PP
  2. Oscilloscope Recomendations
  3. Paia tubehead mod's?
  4. How much power for a SE 807 amplifier?
  5. 6c33 Se
  6. PSU capacitor max.voltage question
  7. Diode Question
  8. Tuberolling - Is it for real?
  9. Anybody seen this one?
  10. kt88 subsitute?
  11. Help needed on Mullard EL34PP
  12. help me out if you can
  13. Very Low Voltage Preamp
  14. Would this work?
  15. Help with SRPP pre-
  16. Do different tube rectifiers effect the bass response?
  17. a little intermittent thump...
  18. Heathkit EA-2
  19. My first tube amplifier
  20. CAT LS-1 Pre amp
  21. Wave av-8 hot hot ??
  22. My new multichanel passive balanced pre-amp/solar powerd(tube mode)/remotecontrol.
  23. Books for Tube nOObies...
  24. Cook BN/MN preamp
  25. Autoformers (again??!)
  26. is it busted?
  27. Megahertz Audio transformers
  28. Etf.03
  29. Is a Differential Pair (CCS tail) phase inverter suitable for a Class AB outputstage?
  30. Frank´s pre and Rozenblitz power. Building them.
  31. Hi,grataku,look this!
  32. passive preamp for quadII poweramp
  33. Constant Current Sources in Tube Amps
  34. Any good #26 line amp designs?
  35. Raytheon 5842 datasheet anyone, please
  36. circuit diagram for LMI-32216A RCA ORTHOPHONIC POWER AMPLIFIER
  37. Fun little P-P input stage
  38. Seeking 6AQ5's Curve Chart
  39. Something strange that happened today...
  40. EL84 Push Pull Low Freq Humming.
  41. Whispering and Rustling Leaves
  42. 6L6GC PP Problem
  43. Direct coupling question...
  44. is this transformer ok??
  45. Pre to Power - amp matching
  46. nedd az1 tube base in the UK
  47. Pwer Supply Question
  48. test
  49. Help with hum in AC heaters
  50. "non direct" volume control
  51. Volume control
  52. FINDING 6sn7 DESIGN
  53. Transcendent Sound T16 ?
  54. 300b at 3.35V after bridge replacement
  55. Crucial to match tubes when running PSE?
  56. The Emperor's New Amplifier
  57. SE sound from a P-P amplifier
  58. How does a VAC Renaissance 70/70 get 65W from 4 300Bs?
  59. Opinions about T.A.C. amplifiers?
  60. TRIAD specs. needed!
  61. Can you make 0-5V DC out of 2.5-0-2.5V AC
  62. absoluteli newbie from solid.any seriuos help?
  63. Quality and sound of Lundahl transformers?
  64. Anyone ever tried these output transformers?
  65. B+ delay circuit
  66. Regulated Supplies in Tube Amps
  67. Just fired up my CCS'd ECC99 -> SE 2A3
  68. Tube amp for the car
  69. My plans for this kit, any comment to improve!!!!
  70. Query....CCDA for Mark III
  71. Using a transformer as a filter
  72. Quality of Hammond 300 series power transformers compared to 200 series?
  73. Marantz preamp
  74. Octal Cornet
  75. Raven using Lundahl instead Sowter
  76. Vote NOW for a globe TJ meshplate 45.
  77. Jadis Defy 7 Help!
  78. How do I calculate (or measure) my amp's output impedance?
  79. 6CD6GA for amplifier
  80. Troubleshooting a PP EL34
  81. Hum problem, but on the tweeter (!?)
  82. isolating mounts for transformers
  83. guitar amp
  84. Help with 5692 line amp
  85. needs schematic SLF-1
  86. Which one with lower noise?
  87. 12A tube??
  88. E180F triode-strapped.
  89. Any comment for my new face for all diyer
  90. EL509 Alternatives for this amp
  91. questions about 01A / 483 pre-amp.
  92. Need help evaluating 2A3 transformer coupled designs
  93. Question for Joel (5755/6BQ5)
  94. Sweep tube amp...comments?
  95. How's about a Depletion Mode / Enhancement Mode CCCS
  96. Otl ?
  97. quicksilver 8417 hum
  98. Any Europeans here going to VSAC?
  99. When using a DC filament supply on a DHT...
  100. need single state preamp schmatic.
  101. Help with lowering filament winding voltage.
  102. some schematic questions by newbie help!
  103. Could a filament transformer be used as a grid choke?
  104. Joule electra LA150
  105. my first tube amp is running (sort of)- help kill the hum
  106. tube cd output advice
  107. DC to DC converters for tube preamplifier
  108. Cathode follower for a newbie ?
  109. Any info on a Trio AF-220 tuner?
  110. Inpol
  111. Quicksilver 8417
  112. Battery bias below EL84/6BQ5
  113. CCS loaded ECC99 calculations/questions
  114. J.E. Labs 2A3
  115. valve/miniature can hiss
  116. Photo Gallery
  117. Photo Discussion
  118. Looking for a cheap amp?
  119. Scrap or save?
  120. No Lima show
  121. 6DJ8 Tubes
  122. Amp Photos?
  123. Tekni-fi Tiny Tube RIIA stage
  124. srpp or m-follower?
  125. Elliptron Schematic
  126. 6d22s
  127. Vg=0 distortion
  128. class A S.E. OTL
  129. Power Tube 40?
  130. Designing for guys who like designing
  131. push pull 845
  132. tube rectifier and tda 1543
  133. amp project query
  134. tube matching fixture
  135. rec. for creative ideas for alternative tube amp chassis
  136. Who knows where to get 1200v Silicon Carbide Schottkys ?
  137. Bottlehead questions for a tube neophyte
  138. 6CM7 another tube in disguise?
  139. Mixing SE and push-pull
  140. Interstage resistor question
  141. 6L6GC/EL34 SE Stereo Design
  142. Heater power supply help
  143. 2a3 Se Amp With 5k Opt?
  144. 12B4A Linestage & PSU
  145. Info on VAA-70MKII? Please...
  146. AC Cap for DC use
  147. AC or DC???
  148. 12B4A as tube buffer?
  149. A question of bias...
  150. 6336A valves
  151. a better pentode for less!
  152. Troubleshooting a single ended EL84
  153. Transcendent Sound's T16 OTL
  154. Ear 834
  155. Guitar Tube Amp that uses KT88, 300B, 2A3, else
  156. Anyone ever owned/seen one of these?
  157. topology and PSRR
  158. A few questions
  159. Help Need the VSE SuperReg schematic!
  160. It plays music!!!!
  161. Anybody Has 6b4g Se Power?
  162. Bottlehead gear, buschhorns pics
  163. A new source for SE output transformers?
  164. help troubleshooting this diy pre-amp
  165. High Frequency Clipping in EL84 SE
  166. Basic Q on tube amp design
  167. Pentode cathode follower with regulated screen voltage?
  168. Starting my Bottlehead Paramour 2A3 build
  169. Seeking advice on my first shot in designing a 5842 DC'ed to 45
  170. Improving the Futterman
  171. Help with plate chokes
  172. OTL ver.6 Ciuffoly
  173. EL84 DPP and Full Range problem
  174. Where can I bought some Tubes in England?
  175. 12E1 tubes (help)
  176. Correct values for this schematic?
  177. Radford STA25
  178. A dumb question about coupling caps.
  179. "Mainframe" breadboard
  180. Velleman K4040 tube amp user feedback sought
  181. possible project for me, tube preamp.
  182. PSUD modelling of a filament supply
  183. Tube sound PC Mainboard
  184. 6C45PI contant current source
  185. Estimating choke size ?
  186. 6550 Users Beware...
  187. i finally got around to fixen it
  188. Going Balanced All The Way...
  189. Integrated Kit Thoughts?
  190. Any shows in the midwest or east coming up?
  191. Bottlehead meet in Houston pictures
  192. Very Cheap Valve preamplifier
  193. Figuring plate resistor values or tubes 101
  194. Preamp PSU questions
  195. Tube condition question
  196. Fender guitare tube
  197. Vacuum Tube Current Sink Drive???
  198. VSAC show
  199. 5687 line amp with 0D3 regulator
  200. Phono Stage Only?
  201. 15 W out of single SE KT88 ?
  202. Tube guitar amplifier circuit
  203. LS terminals to earth?
  204. Can anyone comment on the tektron 300b/2a3?
  205. Indy audio show
  206. Lifespan of old oil caps
  207. EQ Bypass Question
  208. Do these scope traces mean something is oscillating?
  209. Help With Flavors of Tubes
  210. beggar's tube amp
  211. Anybody know the whereabouts of Alan Kimmel?
  212. Audionote Conquest PCB Layout
  213. Looking for a Preamp
  214. Recommendations on a simple design?
  215. Line stage
  216. Need recomdations on a lineamp
  217. The world turned upside down
  218. Wavac MD300B
  219. PSpice model for Outputtranformers
  220. transformers
  221. schematics for the se 1000 audio innovations
  222. Conrad johnson topology
  223. HALOJOY - tube amp new bie - NEEDS HELP
  224. help with plate supply
  225. Grid current and direct coupling
  226. Tension on chassis
  227. silver corrosion
  228. Switching circuit help needed
  229. passive bi-amping parts
  230. DRD Amps
  231. AuriCap
  232. help with heater supply
  233. i've got these tubes here, and i don't know what to do with them
  234. Can anyone comment on the Telefuken v311
  235. Are these tubes worth annything?
  236. Asc/Angela vs Black Gate caps
  237. Low output impedance pre
  238. AudioCap PPT Theta for tube amps?
  239. Pcc88
  240. BG N/NX as tube output caps? possible?
  241. Is anyone here familiar with Butler Audio amplifiers?
  242. Telefunken smooth vs.ribbed plate 12AX7
  243. SIE chokes -- how much current
  244. 6GM8+MOSFET=car amp?
  245. Switched power supply?
  246. Plytron/Amplimo 4070-CFB OTF's
  247. How to test output transformers
  248. How much feedback is too much feedback
  249. Hey, I'm looking for some of that "tube sound"!
  250. Help with ccs

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