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

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