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  1. Marantz preamp clone for newbie?
  2. Can I use Philips TB2.5 /400 in a SE ampl.
  3. Microwave + Computer = Tube? [help!]
  4. Oil Capacitor DC vs. AC Voltage Rating
  5. Plate Choke Miller Capacitance
  6. Anyone interested in building an EAR 834P?
  7. tube pre-amp
  8. Choke For Supply B+ Diy
  9. Audio Note DAC4 SRPP output stage problems!
  10. Regulated Dc Question
  11. what about tubes?
  12. Please help choose amp layout.
  13. SE 813 OPT..Am I On the right Track?
  14. say it's a hum problem
  15. Affordable KT88
  16. With transformer or OTL ?
  17. 45 SE tube amp OPT
  18. 2 Bogen 7027 tube amp vintage amplifier mono block
  19. Newnewbie Ouput Tranny question
  20. Webcor Amplifier Speaker
  21. could 24A been power tube
  22. How's this for a first amp?
  23. U.K. transformer supplier
  24. stereo el34 + kt66?
  25. Very tempting Good invesment or not????????
  26. A Heretical Unity gain line stage
  27. NFB net gain or loss
  28. Different brands:Is there any difference?
  29. McIntosh 225 Schematic
  30. LM317 for power amp regulation?
  31. KT88 or 6550?
  32. How to choose 6c33b?
  33. Using rectifier tubes in parallell
  34. Small problem at power off
  35. Preamp rebuild - hum problem
  36. what should I do with this tranny???
  37. Will this 2A3 PSE work?
  38. Ec86
  39. Worth to buy - tubes?
  40. 10/10/ preamp
  41. what do you think of this preamp?
  42. Tube FM -- Armstrong's first bdcst commemorated
  43. rjm 6dj8 phono section
  44. mercury vapor rectifier tubes on e-bay
  45. Russian Tube Stuff -- WSJ
  46. Help Please!!!!!!
  47. 5902 amp schematics?
  48. Microphonics...........
  49. High voltage PSU
  50. 2A3 v 6550
  51. Coupling cap question
  52. Wollcott cross coupled circuit
  53. TAD Tubes where are they from?
  54. ebay Junk or Treasures?
  55. interconnects
  56. In few words
  57. GlassFET Design Ideas
  58. ecc88 tube pover supply-rect.
  59. A tubeNoob enters => I bought a Dynavox VR-70E
  60. plugging guitar amp to phono reciever
  61. Heater Supply using LM3X7 current source
  62. Stepdown input trafo
  63. increasing the bias will cause the amp to.....
  64. Transformer faulty?
  65. More crappy Russian EL34s - Svetlana this time
  66. My Tragic story about Emission Labs tube
  67. Please help me solve the problem
  68. amp freq response with o-scope
  69. Can you SEE (construction) how a tube SOUNDS?
  70. CCS fed shunt regulators
  71. Recommended Modifications/Tweaks for Dynaco PAS-3 Series II Pre-Amp
  72. ebay toys
  73. Source for 6c45pi's???
  74. phono preamp design for c3m postie valve
  75. McMartin MA-50 Troubleshooting
  76. looking for something different
  77. mc275
  78. Sv572-3 Se
  79. Alps step attenuator
  80. seeking real kt90 pp schematics
  81. -50V negative supply
  82. Inductance coupling between chokes
  83. Mercury Magnetics
  84. warming up thetubes
  85. distorsion
  86. using a plate choke?
  87. Should I trash these tubes
  88. Minature Vaccum Tube Question
  89. 46 tube user
  90. Smells like a mistake
  91. Help for my hybird zero feedback AMP
  92. help on ul transformer please
  93. Wiring the D3a as triode - What is best?
  94. Switching from ultralinear to triode
  95. Help for a Output Transfo problem
  96. Pentode models
  97. Good or bad to use parallel capacitors of same value in signal path...
  98. Urgent: Need Help on Schematics (Tube Pre-Amplifier)
  99. ASL wave 8 mods
  100. lectron jh 60 help----------------
  101. crown tube poweramp
  102. Alan kimmel mu stage article
  103. What would you do with this amp?
  104. tube software
  105. Simple Valve Preamplifier
  106. Current sourced heaters in a CF
  107. Tubes and music styles
  108. Cheap SE EL84
  109. Making a living out of tubes? (A little off-topic)
  110. EL84 matched pairs
  111. Tango XE20S voltage rating?
  112. power transformer heat
  113. Used Tube Amps, second life..
  114. Tubes
  115. Taylor 845
  116. AVO CT-160 Tube Tester - how to remove knobs?? - please help
  117. The DIYHifiSupply.com Joplin amplifier Kit
  118. Berning P-1 Preamp
  119. Which tube for OPT 7,5k SE low watts???
  120. help me with this puzzle...
  121. Univox 1501 Fried Resistors
  122. It makes me wonder ...
  123. Tubes operating in horizontal position
  124. Dewald radio N-803b keep or use parts?
  125. Ongaku
  126. PSU Design question
  127. Primary reactance of a parafeed OPT
  128. Info on IIT interstage trafos?
  129. vt25/10-Y or 45 tube
  130. 2a3, single plate-double plate?
  131. Preferred tube? KT88 vs. EL34
  132. You may laugh..but don't waste your time trying to dissuade me. 300B preamp.
  133. Parallelling power supply chokes???
  134. Sherwood S7000
  135. please explain plate curves
  136. Triode connected SV6550C with 500V HT
  137. KT88 SE schematic wanted.
  138. 6SN7 based tube buffer
  139. hum measurement
  140. Load of tubes to liquidate
  141. Unhappy with the Lilliput design
  142. Halving OPT's pri.imp. by connecting 8ohm load to 16ohm tap - Good/Bad?
  143. Tube Technology Prophet
  144. Cathode Feedback from Secondary for PP Amp
  145. Zenith Amplifier
  146. Dynaco SCA-35 fixer-upper
  147. Multiple primary power transformer question
  148. Sizing a Regulator
  149. will laziness burn my amp down?!
  150. resistors of a lower power rating
  151. wavy vibrato-like sound when amp cranked
  152. Rh34se?
  153. Ef86, 6n1p & 845pp
  154. HYBRID POWER AMPLIFIER - please help!
  155. 6528 Se
  156. single ended HiFi Regal stereo tube amplifier
  157. Matisse Line Amp
  158. changing longtail
  159. What do you think??????
  160. The amplifier itself whines
  161. DIY repair- replacing capacitors
  162. Benefits of 845B
  163. Counterpoint Preamp Modifications
  164. Humming Sovtek EF86
  165. Output Transformers
  166. RIAA phono stage
  167. The cathode FeedBack in Push-Pull amp
  168. What's a Field Coil Amplifier?
  169. Need help for ampeg tube amp transformers ...
  170. HF filter inductors for signal path
  171. Different tube options for DCMB driver stage?
  172. Crowhurst paper on output xformer search
  173. Tamura inputs trans used as linestage out
  174. Seperate Amp for center channel
  175. Look for UL41 PP Structure!!
  176. Photoelectric valves?
  177. Bell Carrillon tube amp 6V6
  178. Yamamoto Sound Craft A-08 Amplifier
  179. Wanted Radford MA-15
  180. Beyond SET and ParaFeed.... Complementary Current Triode
  181. Too much gain
  182. 2 To 3 Prong Conversion
  183. 6c33 Set
  184. Svetlana MVSZ ---> cheat??
  185. separation of phono power supply for marantz m7 clone
  186. 300b Circuit Mod.
  187. james transformers
  188. ecc preamp schematics please!!!
  189. 845B problem
  190. 150W Garage sale find.
  191. speakers for class A ?
  192. Power Tx core should ground?
  193. First try, Would some one look over.
  194. Global Feedback in Push Pull Amps
  195. Heater voltage circuit change......why please
  196. EICO 147A operators manual
  197. Please Help My Tube Microphones!
  198. Magnetic Circuit Gurus Needed
  199. Tube Blues
  200. end of tube
  201. What is meant by 'Extended Cut-off'?
  202. How is it possible?
  203. best long life for my tube
  204. My first tube amp design...check it out.
  205. Tube driver for a SS power amplifier
  206. HK & world: with Cayin, are tube kits still good value (apart from learning)?
  207. www.thetubecenter.com = reliable?
  208. Lp values for guitar amp OT
  209. what do I replace...?
  210. Rectifiers: Tube vs Solid state..
  211. What can I do with 3Q4 Pentode tubes?
  212. DIY Powdered Core Progress Report
  213. PP output transformer grounded or not ?
  214. Bias supply question
  215. Minimum filament voltage for 300B
  216. Is it ok to combine output transformers?
  217. JE labs 2A3 evaluation
  218. 6sn7,6h30,6c33c ?
  219. signal ground and earth ground
  220. Recommended 6SN7 and 6SL7
  221. Question about BAT VK 75
  222. Please,a) cause of high pitched hum, b)DC wires twisted or not
  223. What kind of tube is this
  224. Tube Identification Help Please
  225. Balanced Load Design
  226. "lift off " or "Houston we have a problem"
  227. Anyone wound SE transformer for 6c33c-b?
  228. EL802 driving a 845 ?
  229. Diodes in series and hybrids
  230. Vacuum tube modeling software - beta testers wanted
  231. Parallel Push Pull Drivers
  232. 6V6 in triode connect mode
  233. OPT winding orientation
  234. 6.3v Heater Regulator Schematic
  235. An Important Read
  236. Did a real nice find
  237. New guy with DIY ground ?s--yes, even after searching:D
  238. 5u4g vs 5u4gb
  239. Tube amp volume fluctuation
  240. Bad tube?
  241. 1626's watt?
  242. fellow Hawkeye lookin' for cadman!
  243. Shuagang 2A3C
  244. Parallel SE vs. Single SE Output Question
  245. PP OPT Core dimension
  246. Confirmation of Primary Impedance?
  247. What does a hole on the guide pin of an octal base represent?
  248. Sepp?
  249. 6AS7 lowpower amp?
  250. Dual Mono PSU with shared earth..

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