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  1. PSpice/LTSpice model for 12AY7/6072 wanted
  2. Is this circuit I drew ok?
  3. Suggest a preamp for cd/tuner
  4. EL84 to 6l6
  5. Tube-cad, is it worth the $40?
  6. Grounded Grid Preamp Project And Possible Group PCB Buy
  7. Can anyone sujest a good operating point for the PL84
  8. Preamp hiss noise
  9. Audio Note Trans 205 specs?
  10. Help translating russian tube datasheet
  11. Very high output level!
  12. Help wanted with valve data
  13. Boiling sound...
  14. Negative Feedback Ground
  15. low power SE with 813
  16. KT instead EL
  17. a single double triode and two chanel?
  18. 76 driving 211?
  19. My Experience with "Music Angel" EL34 PP
  20. 12JT6 in triode mode curves needed
  21. Where did these EL84 numbers come from?
  22. int. low signal
  23. FFT analysis-Truth or Consequence
  24. 6sn7gtb Filament Voltage
  25. Help with Tube Buffer for passive pre
  26. Is there a 12CM7?
  27. 12ax7
  28. tube driving the same tube - whats the collective word?
  29. 6c33c PSE
  30. 75% of rated max. current too high?
  31. ST shaped tube
  32. Tube Phono Pre of RJM
  33. how to determine P1 from P2 of a Push-pull transformer?
  34. fisher x100a
  35. Please review EL84M PP design before I order parts.
  36. Auction Gem Motorola? Go Figure!
  37. Darling amp plate voltage
  38. Sound quality of 6C4C is same with 2A3?
  39. 6,3VAC to 6,3VDC
  40. EL84 push pull idea
  41. Marantz preamp clone for newbie?
  42. Can I use Philips TB2.5 /400 in a SE ampl.
  43. Microwave + Computer = Tube? [help!]
  44. Oil Capacitor DC vs. AC Voltage Rating
  45. Plate Choke Miller Capacitance
  46. Anyone interested in building an EAR 834P?
  47. tube pre-amp
  48. Choke For Supply B+ Diy
  49. Audio Note DAC4 SRPP output stage problems!
  50. Regulated Dc Question
  51. what about tubes?
  52. Please help choose amp layout.
  53. SE 813 OPT..Am I On the right Track?
  54. say it's a hum problem
  55. Affordable KT88
  56. With transformer or OTL ?
  57. 45 SE tube amp OPT
  58. 2 Bogen 7027 tube amp vintage amplifier mono block
  59. Newnewbie Ouput Tranny question
  60. Webcor Amplifier Speaker
  61. could 24A been power tube
  62. How's this for a first amp?
  63. U.K. transformer supplier
  64. stereo el34 + kt66?
  65. Very tempting Good invesment or not????????
  66. A Heretical Unity gain line stage
  67. NFB net gain or loss
  68. Different brands:Is there any difference?
  69. McIntosh 225 Schematic
  70. LM317 for power amp regulation?
  71. KT88 or 6550?
  72. How to choose 6c33b?
  73. Using rectifier tubes in parallell
  74. Small problem at power off
  75. Preamp rebuild - hum problem
  76. what should I do with this tranny???
  77. Will this 2A3 PSE work?
  78. Ec86
  79. Worth to buy - tubes?
  80. 10/10/ preamp
  81. what do you think of this preamp?
  82. Tube FM -- Armstrong's first bdcst commemorated
  83. rjm 6dj8 phono section
  84. mercury vapor rectifier tubes on e-bay
  85. Russian Tube Stuff -- WSJ
  86. Help Please!!!!!!
  87. 5902 amp schematics?
  88. Microphonics...........
  89. High voltage PSU
  90. 2A3 v 6550
  91. Coupling cap question
  92. Wollcott cross coupled circuit
  93. TAD Tubes where are they from?
  94. ebay Junk or Treasures?
  95. interconnects
  96. In few words
  97. GlassFET Design Ideas
  98. ecc88 tube pover supply-rect.
  99. A tubeNoob enters => I bought a Dynavox VR-70E
  100. plugging guitar amp to phono reciever
  101. Heater Supply using LM3X7 current source
  102. Stepdown input trafo
  103. increasing the bias will cause the amp to.....
  104. Transformer faulty?
  105. More crappy Russian EL34s - Svetlana this time
  106. My Tragic story about Emission Labs tube
  107. Please help me solve the problem
  108. amp freq response with o-scope
  109. Can you SEE (construction) how a tube SOUNDS?
  110. CCS fed shunt regulators
  111. Recommended Modifications/Tweaks for Dynaco PAS-3 Series II Pre-Amp
  112. ebay toys
  113. Source for 6c45pi's???
  114. phono preamp design for c3m postie valve
  115. McMartin MA-50 Troubleshooting
  116. looking for something different
  117. mc275
  118. Sv572-3 Se
  119. Alps step attenuator
  120. seeking real kt90 pp schematics
  121. -50V negative supply
  122. Inductance coupling between chokes
  123. Mercury Magnetics
  124. warming up thetubes
  125. distorsion
  126. using a plate choke?
  127. Should I trash these tubes
  128. Minature Vaccum Tube Question
  129. 46 tube user
  130. Smells like a mistake
  131. Help for my hybird zero feedback AMP
  132. help on ul transformer please
  133. Wiring the D3a as triode - What is best?
  134. Switching from ultralinear to triode
  135. Help for a Output Transfo problem
  136. Pentode models
  137. Good or bad to use parallel capacitors of same value in signal path...
  138. Urgent: Need Help on Schematics (Tube Pre-Amplifier)
  139. ASL wave 8 mods
  140. lectron jh 60 help----------------
  141. crown tube poweramp
  142. Alan kimmel mu stage article
  143. What would you do with this amp?
  144. tube software
  145. Simple Valve Preamplifier
  146. Current sourced heaters in a CF
  147. Tubes and music styles
  148. Cheap SE EL84
  149. Making a living out of tubes? (A little off-topic)
  150. EL84 matched pairs
  151. Tango XE20S voltage rating?
  152. power transformer heat
  153. Used Tube Amps, second life..
  154. Tubes
  155. Taylor 845
  156. AVO CT-160 Tube Tester - how to remove knobs?? - please help
  157. The DIYHifiSupply.com Joplin amplifier Kit
  158. Berning P-1 Preamp
  159. Which tube for OPT 7,5k SE low watts???
  160. help me with this puzzle...
  161. Univox 1501 Fried Resistors
  162. It makes me wonder ...
  163. Tubes operating in horizontal position
  164. Dewald radio N-803b keep or use parts?
  165. Ongaku
  166. PSU Design question
  167. Primary reactance of a parafeed OPT
  168. Info on IIT interstage trafos?
  169. vt25/10-Y or 45 tube
  170. 2a3, single plate-double plate?
  171. Preferred tube? KT88 vs. EL34
  172. You may laugh..but don't waste your time trying to dissuade me. 300B preamp.
  173. Parallelling power supply chokes???
  174. Sherwood S7000
  175. please explain plate curves
  176. Triode connected SV6550C with 500V HT
  177. KT88 SE schematic wanted.
  178. 6SN7 based tube buffer
  179. hum measurement
  180. Load of tubes to liquidate
  181. Unhappy with the Lilliput design
  182. Halving OPT's pri.imp. by connecting 8ohm load to 16ohm tap - Good/Bad?
  183. Tube Technology Prophet
  184. Cathode Feedback from Secondary for PP Amp
  185. Zenith Amplifier
  186. Dynaco SCA-35 fixer-upper
  187. Multiple primary power transformer question
  188. Sizing a Regulator
  189. will laziness burn my amp down?!
  190. resistors of a lower power rating
  191. wavy vibrato-like sound when amp cranked
  192. Rh34se?
  193. Ef86, 6n1p & 845pp
  194. HYBRID POWER AMPLIFIER - please help!
  195. 6528 Se
  196. single ended HiFi Regal stereo tube amplifier
  197. Matisse Line Amp
  198. changing longtail
  199. What do you think??????
  200. The amplifier itself whines
  201. DIY repair- replacing capacitors
  202. Benefits of 845B
  203. Counterpoint Preamp Modifications
  204. Humming Sovtek EF86
  205. Output Transformers
  206. RIAA phono stage
  207. The cathode FeedBack in Push-Pull amp
  208. What's a Field Coil Amplifier?
  209. Need help for ampeg tube amp transformers ...
  210. HF filter inductors for signal path
  211. Different tube options for DCMB driver stage?
  212. Crowhurst paper on output xformer search
  213. Tamura inputs trans used as linestage out
  214. Seperate Amp for center channel
  215. Look for UL41 PP Structure!!
  216. Photoelectric valves?
  217. Bell Carrillon tube amp 6V6
  218. Yamamoto Sound Craft A-08 Amplifier
  219. Wanted Radford MA-15
  220. Beyond SET and ParaFeed.... Complementary Current Triode
  221. Too much gain
  222. 2 To 3 Prong Conversion
  223. 6c33 Set
  224. Svetlana MVSZ ---> cheat??
  225. separation of phono power supply for marantz m7 clone
  226. 300b Circuit Mod.
  227. james transformers
  228. ecc preamp schematics please!!!
  229. 845B problem
  230. 150W Garage sale find.
  231. speakers for class A ?
  232. Power Tx core should ground?
  233. First try, Would some one look over.
  234. Global Feedback in Push Pull Amps
  235. Heater voltage circuit change......why please
  236. EICO 147A operators manual
  237. Please Help My Tube Microphones!
  238. Magnetic Circuit Gurus Needed
  239. Tube Blues
  240. end of tube
  241. What is meant by 'Extended Cut-off'?
  242. How is it possible?
  243. best long life for my tube
  244. My first tube amp design...check it out.
  245. Tube driver for a SS power amplifier
  246. HK & world: with Cayin, are tube kits still good value (apart from learning)?
  247. www.thetubecenter.com = reliable?
  248. Lp values for guitar amp OT
  249. what do I replace...?
  250. Rectifiers: Tube vs Solid state..

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