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  1. ST shaped tube
  2. Tube Phono Pre of RJM
  3. how to determine P1 from P2 of a Push-pull transformer?
  4. fisher x100a
  5. Please review EL84M PP design before I order parts.
  6. Auction Gem Motorola? Go Figure!
  7. Darling amp plate voltage
  8. Sound quality of 6C4C is same with 2A3?
  9. 6,3VAC to 6,3VDC
  10. EL84 push pull idea
  11. Marantz preamp clone for newbie?
  12. Can I use Philips TB2.5 /400 in a SE ampl.
  13. Microwave + Computer = Tube? [help!]
  14. Plate Choke Miller Capacitance
  15. Anyone interested in building an EAR 834P?
  16. tube pre-amp
  17. Choke For Supply B+ Diy
  18. Audio Note DAC4 SRPP output stage problems!
  19. Regulated Dc Question
  20. what about tubes?
  21. Please help choose amp layout.
  22. SE 813 OPT..Am I On the right Track?
  23. say it's a hum problem
  24. Affordable KT88
  25. With transformer or OTL ?
  26. 45 SE tube amp OPT
  27. 2 Bogen 7027 tube amp vintage amplifier mono block
  28. Newnewbie Ouput Tranny question
  29. Webcor Amplifier Speaker
  30. could 24A been power tube
  31. How's this for a first amp?
  32. U.K. transformer supplier
  33. stereo el34 + kt66?
  34. Very tempting Good invesment or not????????
  35. A Heretical Unity gain line stage
  36. NFB net gain or loss
  37. Different brands:Is there any difference?
  38. McIntosh 225 Schematic
  39. LM317 for power amp regulation?
  40. KT88 or 6550?
  41. How to choose 6c33b?
  42. Using rectifier tubes in parallell
  43. Small problem at power off
  44. Preamp rebuild - hum problem
  45. what should I do with this tranny???
  46. Will this 2A3 PSE work?
  47. Ec86
  48. Worth to buy - tubes?
  49. 10/10/ preamp
  50. what do you think of this preamp?
  51. Tube FM -- Armstrong's first bdcst commemorated
  52. rjm 6dj8 phono section
  53. mercury vapor rectifier tubes on e-bay
  54. Russian Tube Stuff -- WSJ
  55. Help Please!!!!!!
  56. 5902 amp schematics?
  57. Microphonics...........
  58. High voltage PSU
  59. 2A3 v 6550
  60. Coupling cap question
  61. Wollcott cross coupled circuit
  62. TAD Tubes where are they from?
  63. ebay Junk or Treasures?
  64. interconnects
  65. In few words
  66. GlassFET Design Ideas
  67. ecc88 tube pover supply-rect.
  68. A tubeNoob enters => I bought a Dynavox VR-70E
  69. Heater Supply using LM3X7 current source
  70. Stepdown input trafo
  71. increasing the bias will cause the amp to.....
  72. Transformer faulty?
  73. More crappy Russian EL34s - Svetlana this time
  74. My Tragic story about Emission Labs tube
  75. Please help me solve the problem
  76. amp freq response with o-scope
  77. Can you SEE (construction) how a tube SOUNDS?
  78. CCS fed shunt regulators
  79. Recommended Modifications/Tweaks for Dynaco PAS-3 Series II Pre-Amp
  80. ebay toys
  81. Source for 6c45pi's???
  82. phono preamp design for c3m postie valve
  83. McMartin MA-50 Troubleshooting
  84. looking for something different
  85. mc275
  86. Sv572-3 Se
  87. Alps step attenuator
  88. seeking real kt90 pp schematics
  89. -50V negative supply
  90. Inductance coupling between chokes
  91. Mercury Magnetics
  92. warming up thetubes
  93. distorsion
  94. using a plate choke?
  95. Should I trash these tubes
  96. Minature Vaccum Tube Question
  97. 46 tube user
  98. Smells like a mistake
  99. Help for my hybird zero feedback AMP
  100. help on ul transformer please
  101. Wiring the D3a as triode - What is best?
  102. Switching from ultralinear to triode
  103. Help for a Output Transfo problem
  104. Pentode models
  105. Good or bad to use parallel capacitors of same value in signal path...
  106. Urgent: Need Help on Schematics (Tube Pre-Amplifier)
  107. ASL wave 8 mods
  108. lectron jh 60 help----------------
  109. crown tube poweramp
  110. Alan kimmel mu stage article
  111. What would you do with this amp?
  112. tube software
  113. Simple Valve Preamplifier
  114. Current sourced heaters in a CF
  115. Tubes and music styles
  116. Cheap SE EL84
  117. Making a living out of tubes? (A little off-topic)
  118. EL84 matched pairs
  119. Tango XE20S voltage rating?
  120. power transformer heat
  121. Used Tube Amps, second life..
  122. Tubes
  123. Taylor 845
  124. The DIYHifiSupply.com Joplin amplifier Kit
  125. Berning P-1 Preamp
  126. Which tube for OPT 7,5k SE low watts???
  127. help me with this puzzle...
  128. It makes me wonder ...
  129. Tubes operating in horizontal position
  130. Dewald radio N-803b keep or use parts?
  131. Ongaku
  132. PSU Design question
  133. Primary reactance of a parafeed OPT
  134. Info on IIT interstage trafos?
  135. vt25/10-Y or 45 tube
  136. 2a3, single plate-double plate?
  137. Preferred tube? KT88 vs. EL34
  138. You may laugh..but don't waste your time trying to dissuade me. 300B preamp.
  139. Parallelling power supply chokes???
  140. Sherwood S7000
  141. please explain plate curves
  142. Triode connected SV6550C with 500V HT
  143. KT88 SE schematic wanted.
  144. 6SN7 based tube buffer
  145. hum measurement
  146. Load of tubes to liquidate
  147. Unhappy with the Lilliput design
  148. Halving OPT's pri.imp. by connecting 8ohm load to 16ohm tap - Good/Bad?
  149. Tube Technology Prophet
  150. Cathode Feedback from Secondary for PP Amp
  151. Zenith Amplifier
  152. Dynaco SCA-35 fixer-upper
  153. Multiple primary power transformer question
  154. Sizing a Regulator
  155. will laziness burn my amp down?!
  156. resistors of a lower power rating
  157. wavy vibrato-like sound when amp cranked
  158. Rh34se?
  159. Ef86, 6n1p & 845pp
  160. HYBRID POWER AMPLIFIER - please help!
  161. 6528 Se
  162. single ended HiFi Regal stereo tube amplifier
  163. Matisse Line Amp
  164. changing longtail
  165. What do you think??????
  166. The amplifier itself whines
  167. DIY repair- replacing capacitors
  168. Benefits of 845B
  169. Counterpoint Preamp Modifications
  170. Humming Sovtek EF86
  171. Output Transformers
  172. RIAA phono stage
  173. The cathode FeedBack in Push-Pull amp
  174. What's a Field Coil Amplifier?
  175. HF filter inductors for signal path
  176. Different tube options for DCMB driver stage?
  177. Crowhurst paper on output xformer search
  178. Tamura inputs trans used as linestage out
  179. Seperate Amp for center channel
  180. Look for UL41 PP Structure!!
  181. Photoelectric valves?
  182. Bell Carrillon tube amp 6V6
  183. Yamamoto Sound Craft A-08 Amplifier
  184. Wanted Radford MA-15
  185. Beyond SET and ParaFeed.... Complementary Current Triode
  186. Too much gain
  187. 2 To 3 Prong Conversion
  188. 6c33 Set
  189. Svetlana MVSZ ---> cheat??
  190. separation of phono power supply for marantz m7 clone
  191. 300b Circuit Mod.
  192. james transformers
  193. ecc preamp schematics please!!!
  194. 845B problem
  195. 150W Garage sale find.
  196. speakers for class A ?
  197. Power Tx core should ground?
  198. First try, Would some one look over.
  199. Global Feedback in Push Pull Amps
  200. Heater voltage circuit change......why please
  201. EICO 147A operators manual
  202. Please Help My Tube Microphones!
  203. Magnetic Circuit Gurus Needed
  204. Tube Blues
  205. end of tube
  206. What is meant by 'Extended Cut-off'?
  207. How is it possible?
  208. best long life for my tube
  209. My first tube amp design...check it out.
  210. Tube driver for a SS power amplifier
  211. HK & world: with Cayin, are tube kits still good value (apart from learning)?
  212. www.thetubecenter.com = reliable?
  213. what do I replace...?
  214. Rectifiers: Tube vs Solid state..
  215. What can I do with 3Q4 Pentode tubes?
  216. DIY Powdered Core Progress Report
  217. PP output transformer grounded or not ?
  218. Bias supply question
  219. Minimum filament voltage for 300B
  220. Is it ok to combine output transformers?
  221. JE labs 2A3 evaluation
  222. 6sn7,6h30,6c33c ?
  223. signal ground and earth ground
  224. Recommended 6SN7 and 6SL7
  225. Question about BAT VK 75
  226. Please,a) cause of high pitched hum, b)DC wires twisted or not
  227. What kind of tube is this
  228. Tube Identification Help Please
  229. Balanced Load Design
  230. "lift off " or "Houston we have a problem"
  231. Anyone wound SE transformer for 6c33c-b?
  232. EL802 driving a 845 ?
  233. Diodes in series and hybrids
  234. Vacuum tube modeling software - beta testers wanted
  235. Parallel Push Pull Drivers
  236. 6V6 in triode connect mode
  237. OPT winding orientation
  238. 6.3v Heater Regulator Schematic
  239. An Important Read
  240. Did a real nice find
  241. New guy with DIY ground ?s--yes, even after searching:D
  242. 5u4g vs 5u4gb
  243. Tube amp volume fluctuation
  244. Bad tube?
  245. 1626's watt?
  246. fellow Hawkeye lookin' for cadman!
  247. Shuagang 2A3C
  248. Parallel SE vs. Single SE Output Question
  249. PP OPT Core dimension
  250. Confirmation of Primary Impedance?

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