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  1. stupid first-timer
  2. az1 rectifier, chokes and caps
  3. backwards transformers
  4. Need help - trying to increase gain by paralleling triode sections
  5. Auricaps
  6. SE 6EM7 amp
  7. Simple EL84
  8. E88CC preamplifier _ I need diagram
  9. Need good 10-20watt design
  10. Does anyone here use active (digital or otherwise) XOs or EQs or...
  11. Tube mic preamp
  12. help with AudioXpress cd-rom
  13. protecting output tubes at startup
  14. 6N2, 6N6, 6N11 - Please help a beginner! (long)
  15. C core output transformer
  16. grounding
  17. Microphone Amp/Mixer
  18. Opinion solicitation / Shameless plug
  19. Sound Difference Old verses New Tubes
  20. Rewiring that EL509
  21. Russell Sadd's transformer design page.
  22. Article on Distortion
  23. wiring a 6ak5w as a triode
  24. Ankoru
  25. Basic Preamplifier (Balanced Output)
  26. DIY 5687 Preamp
  27. New tube project done in a BIG way
  28. Svetlana SV572-10 ???
  29. My boombox on.. tubes. :)
  30. From glass to mylar
  31. Suitable driver for Ultralinear?
  32. choke regulated power supply
  33. 'Battery under cathode' bias - long-term users?
  34. Will russian 6H6P tube work instead of E88CC?
  35. few Qs, pentodes, srpp, ect...
  36. Power Supply Caps
  37. 6072A Line-Amp
  38. Buying output transformers in Germany.
  39. Noob Toob Question
  40. Transformer Question
  41. High Powered 3cx300a1 Tube Amp
  42. Grounded Grid Trafo question
  43. PP 6AS7 "Maurits"
  44. Newbie, Tubeee
  45. Useful link for tube-hounds
  46. Vacuum tude diode help
  47. Long-winded capacitor question
  48. good simple SE circuit please
  49. Curcio or Triode Elec for ST-70 hot rod parts?
  50. 6021w
  51. fvp5 dc output
  52. Transfomer Too hot on my AudioNote 300B kit one
  53. Help Please 11e1 Valve
  54. Rogue 120 Mono Blocks
  55. AutotraxEDA help
  56. 845 class A2??
  57. choke and cap question
  58. 813 or 845 for a SE amplifier
  59. My first tube project
  60. I have some tubes... what can I do with them? :D
  61. Are Balance Controls Still Necessary?
  62. Info on N.E.W equipment?
  63. input stage and driver help!
  64. 6KV6A curves?
  65. low voltage tubes (space charge, etc.) for guitar amp?
  66. Dual mono amp for guitar amp
  67. Wurlitzer schematic needed for a 6420 amp
  68. Parelling Output Tubes
  69. cathode bypass in PP output stage?
  70. diy valve amp
  71. Tube amp, output capacitor and headphones impedance
  72. Tek 465 Scope
  73. Software?
  74. Has anyone tried a 37 tube as a preamp
  75. I found some old tubes. Can I use those?
  76. Whaddayathink? - tube amp kit
  77. Problems Lundahl LL1660 and 6c45 to 6c33 Triode!Need help!
  78. #27 tube for line amp?
  79. Troidal OPT winding
  80. some poor n00b who may have gotten lucky...
  81. Battery preamp, concurrent charging
  82. opt windings, need some help
  83. Dynaco A470 Output Transformers
  84. Cleaning tricks for removing rust
  85. Looking for tube design software.
  86. Super Triode Conection amps - opinions needed
  87. Hammond 300BX Power Transformer
  88. 6G4B SE Amp.
  89. Which is the best for output transformers
  90. Power supply problem
  91. resistor in PS?
  92. type 76 simple preamplifier
  93. Lectron JH50 help
  94. preamp help for newby
  95. Skip 805, what can I do with 6HS5?
  96. Tube Nicknames?
  97. Silicone High temp O-rings as tube dampers
  98. a few questions for my first time
  99. humbucking filter choke - how different?
  100. Pros and Cons of this technique?
  101. World Audio Design KLPP1
  102. effects of resistance mismatch in OT
  103. Tube regulators and noise ?
  104. First Time tube amp - need help
  105. Any Cheap Tube-amp kits out there
  106. Tube buffer using 12AU7
  107. What can i do with 805 triode valves( NOS)
  108. Good tube amp designs for Biamping?!?
  109. 6sn7 NOS tubes with strange white sth on pins
  110. Comments on this design?
  111. Real electronics/audio shops
  112. Beefing up EL34 PP
  113. Oscilloscope Recomendations
  114. Paia tubehead mod's?
  115. How much power for a SE 807 amplifier?
  116. 6c33 Se
  117. PSU capacitor max.voltage question
  118. Diode Question
  119. Tuberolling - Is it for real?
  120. Anybody seen this one?
  121. kt88 subsitute?
  122. Help needed on Mullard EL34PP
  123. help me out if you can
  124. Very Low Voltage Preamp
  125. Would this work?
  126. Help with SRPP pre-
  127. Do different tube rectifiers effect the bass response?
  128. a little intermittent thump...
  129. Heathkit EA-2
  130. My first tube amplifier
  131. CAT LS-1 Pre amp
  132. Wave av-8 hot hot ??
  133. My new multichanel passive balanced pre-amp/solar powerd(tube mode)/remotecontrol.
  134. Books for Tube nOObies...
  135. Cook BN/MN preamp
  136. Autoformers (again??!)
  137. is it busted?
  138. Megahertz Audio transformers
  139. Etf.03
  140. Is a Differential Pair (CCS tail) phase inverter suitable for a Class AB outputstage?
  141. Frank´s pre and Rozenblitz power. Building them.
  142. Hi,grataku,look this!
  143. passive preamp for quadII poweramp
  144. Constant Current Sources in Tube Amps
  145. Any good #26 line amp designs?
  146. Raytheon 5842 datasheet anyone, please
  147. circuit diagram for LMI-32216A RCA ORTHOPHONIC POWER AMPLIFIER
  148. Fun little P-P input stage
  149. Seeking 6AQ5's Curve Chart
  150. Something strange that happened today...
  151. EL84 Push Pull Low Freq Humming.
  152. Whispering and Rustling Leaves
  153. 6L6GC PP Problem
  154. Direct coupling question...
  155. is this transformer ok??
  156. Pre to Power - amp matching
  157. nedd az1 tube base in the UK
  158. Pwer Supply Question
  159. test
  160. Help with hum in AC heaters
  161. "non direct" volume control
  162. Volume control
  163. FINDING 6sn7 DESIGN
  164. Transcendent Sound T16 ?
  165. 300b at 3.35V after bridge replacement
  166. Crucial to match tubes when running PSE?
  167. The Emperor's New Amplifier
  168. SE sound from a P-P amplifier
  169. How does a VAC Renaissance 70/70 get 65W from 4 300Bs?
  170. Opinions about T.A.C. amplifiers?
  171. TRIAD specs. needed!
  172. Can you make 0-5V DC out of 2.5-0-2.5V AC
  173. absoluteli newbie from solid.any seriuos help?
  174. Quality and sound of Lundahl transformers?
  175. Anyone ever tried these output transformers?
  176. B+ delay circuit
  177. Regulated Supplies in Tube Amps
  178. Just fired up my CCS'd ECC99 -> SE 2A3
  179. Tube amp for the car
  180. My plans for this kit, any comment to improve!!!!
  181. Query....CCDA for Mark III
  182. Using a transformer as a filter
  183. Quality of Hammond 300 series power transformers compared to 200 series?
  184. Marantz preamp
  185. Octal Cornet
  186. Raven using Lundahl instead Sowter
  187. Vote NOW for a globe TJ meshplate 45.
  188. Jadis Defy 7 Help!
  189. How do I calculate (or measure) my amp's output impedance?
  190. 6CD6GA for amplifier
  191. Troubleshooting a PP EL34
  192. Hum problem, but on the tweeter (!?)
  193. isolating mounts for transformers
  194. guitar amp
  195. Help with 5692 line amp
  196. needs schematic SLF-1
  197. Which one with lower noise?
  198. 12A tube??
  199. E180F triode-strapped.
  200. Any comment for my new face for all diyer
  201. EL509 Alternatives for this amp
  202. questions about 01A / 483 pre-amp.
  203. Need help evaluating 2A3 transformer coupled designs
  204. Question for Joel (5755/6BQ5)
  205. Sweep tube amp...comments?
  206. How's about a Depletion Mode / Enhancement Mode CCCS
  207. Otl ?
  208. quicksilver 8417 hum
  209. Any Europeans here going to VSAC?
  210. When using a DC filament supply on a DHT...
  211. need single state preamp schmatic.
  212. Help with lowering filament winding voltage.
  213. some schematic questions by newbie help!
  214. Could a filament transformer be used as a grid choke?
  215. Joule electra LA150
  216. my first tube amp is running (sort of)- help kill the hum
  217. tube cd output advice
  218. DC to DC converters for tube preamplifier
  219. Cathode follower for a newbie ?
  220. Any info on a Trio AF-220 tuner?
  221. Inpol
  222. Quicksilver 8417
  223. Battery bias below EL84/6BQ5
  224. CCS loaded ECC99 calculations/questions
  225. J.E. Labs 2A3
  226. valve/miniature can hiss
  227. Photo Gallery
  228. Photo Discussion
  229. Looking for a cheap amp?
  230. Scrap or save?
  231. No Lima show
  232. 6DJ8 Tubes
  233. Amp Photos?
  234. Tekni-fi Tiny Tube RIIA stage
  235. srpp or m-follower?
  236. Elliptron Schematic
  237. 6d22s
  238. Vg=0 distortion
  239. class A S.E. OTL
  240. Power Tube 40?
  241. Designing for guys who like designing
  242. push pull 845
  243. tube rectifier and tda 1543
  244. amp project query
  245. tube matching fixture
  246. rec. for creative ideas for alternative tube amp chassis
  247. Who knows where to get 1200v Silicon Carbide Schottkys ?
  248. Bottlehead questions for a tube neophyte
  249. 6CM7 another tube in disguise?
  250. Mixing SE and push-pull

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