PDA

View Full Version : Tubes / Valves


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 [80] 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97

  1. 8ohm speaker on 15 or 3.5 ohm tranny
  2. Choosing a brand as a standard
  3. The power of transformation
  4. wanted- 845 pwr amp p.p.
  5. Heathkit S-33 Information needed.
  6. Leak Stereo 20 - solid state rectifier?
  7. My rebuild 6sn7gt tubes line pre-amp.
  8. CircuitMaker Vacuum Tube model
  9. Mf X-pre
  10. E182CC, E88CC SRPP at low voltage
  11. Debugging my Aikido
  12. SRPP linestage help
  13. Transformer question
  14. Tube Spice Model Problem
  15. Just found a zenith 7g01z in the basement
  16. your next level story - Philosophy of EE 101
  17. JLTI Tube Preamp
  18. squeal in amplifier
  19. ALTEC Line & Bridging Transformer Data??
  20. Tube noob needs some help on PSU
  21. Preamp PSU Design Help
  22. GZ37 Substitution?
  23. help disigning 12AY7 based mic pre
  24. I m confuse ! expert help
  25. Removing a pot.
  26. diyparadiso kits?
  27. Help with linestage power supply
  28. TX103 - RJM 6DJ8 - TX102 preamp
  29. Replace the field coil spk with Electromagnetic dynamic spk
  30. Gu50 output problems
  31. SRPP: adifferent perspective
  32. Fixed or self bias?
  33. 211 amp PSU question
  34. Help! transformer overheating!
  35. more ebay stuff
  36. 6KG6, output stage & PSpice
  37. 6C33C-B Failure Mode?
  38. manley 300b preamp schematic required
  39. 115 V transformer on 230 V ???
  40. Hoffman Amps Turret Lugs?
  41. 300B Reliablity
  42. Metal work in Toronto
  43. What happens when you starve a heater?
  44. se 6c33c or se el34 schematic
  45. AVO MkIV User Guide
  46. Altec A150C and 531B psu
  47. What's been broken?
  48. tubes here...
  49. Voltage drop AZ1 = AZ11 = RGN1064 rectifier tube
  50. The Beast...
  51. Looking for Mikael's KT88 Schematic
  52. 1.2k vs 2.5k TC on a 6550 amp?
  53. Ultimate Tube head phone amp.
  54. Selecting Output Transformers for My WOT Line Preamp
  55. Tube microphone
  56. OP tube convertible PP amps?
  57. The "Valvolozzo" - SE amp with torroids
  58. Phase Splitters
  59. A new setup, advice wanted
  60. 6e2 Magic eye datasheet
  61. Another linestage......
  62. VT52: are the triode and pentode alike?
  63. Long term planning
  64. vintage restoration
  65. Some doubt about my first Tube amp (Heater).
  66. Power supply for Single Ended Amplifier
  67. Another CD player DAC tube modification
  68. philips el6400 tubeamp
  69. NTE Metal Film Resistors?
  70. How much power do I really need?
  71. hey guitar playas, try this one!
  72. 6H30 phono with passive RIAA
  73. I need help troubleshooting a EL84 push pull amp.
  74. Tube Data needed please
  75. Filament Transformer
  76. strange tube
  77. 12AX7 and 12AT7 numerical data
  78. DC/DC converter to power tube amp?
  79. Basic Cathode Follower buffer
  80. Marshall EL84 20/20 schematic needed
  81. Help me!!! I need schematic of Pow-Amp using 6V6
  82. gi30, se pentode?
  83. Any experience with Chinese 6N8P
  84. Source for common mode chokes
  85. Low Power FM stereo transmitter?
  86. Rh807
  87. Replacing a power tube (used as driver for mosfet car amp)...how to bias?
  88. Question about sub out on amp
  89. opt question
  90. Tube socket wanted. (help where)
  91. voltage regulator using ECL84 + OB2
  92. Help! 6sn7GT
  93. tubes n needles
  94. PSpice/LTSpice model for 6AU6/EF94?
  95. 5AR4/GZ34 GT Britain
  96. CCS vs mu-follower. What's the difference?
  97. Need advice on two preamp kits.
  98. My First Tube Amplifier
  99. Output (beam) pentodes / tetrodes suitable for screen grid drive
  100. Patent applications of interest
  101. Rca
  102. Guitar Amps
  103. Melos GK-1 Tube Pre-amp Schematic needed ...
  104. 6L6s and 6AR6s - what can I do with them?
  105. Line stage preamp, based on SY's "Heretical Unity gain line stage"
  106. 1600v HT supply for scope.
  107. Mc 275 CE schema
  108. Help! is this work?
  109. Some questons on a DIY system.
  110. pinout on 6GT5A tube
  111. 50Hz hum after increasing grid stopper
  112. A Heretical Unity Gain Line Stage part II
  113. 832A Push Pull 5W
  114. PSpice/LTSpice model for 12AY7/6072 wanted
  115. Is this circuit I drew ok?
  116. Suggest a preamp for cd/tuner
  117. EL84 to 6l6
  118. Tube-cad, is it worth the $40?
  119. Grounded Grid Preamp Project And Possible Group PCB Buy
  120. Can anyone sujest a good operating point for the PL84
  121. Preamp hiss noise
  122. Audio Note Trans 205 specs?
  123. Help translating russian tube datasheet
  124. Very high output level!
  125. Help wanted with valve data
  126. Boiling sound...
  127. Negative Feedback Ground
  128. low power SE with 813
  129. KT instead EL
  130. a single double triode and two chanel?
  131. 76 driving 211?
  132. My Experience with "Music Angel" EL34 PP
  133. 12JT6 in triode mode curves needed
  134. Where did these EL84 numbers come from?
  135. int. low signal
  136. FFT analysis-Truth or Consequence
  137. 6sn7gtb Filament Voltage
  138. Help with Tube Buffer for passive pre
  139. Is there a 12CM7?
  140. 12ax7
  141. tube driving the same tube - whats the collective word?
  142. 6c33c PSE
  143. 75% of rated max. current too high?
  144. ST shaped tube
  145. Tube Phono Pre of RJM
  146. how to determine P1 from P2 of a Push-pull transformer?
  147. fisher x100a
  148. Please review EL84M PP design before I order parts.
  149. Auction Gem Motorola? Go Figure!
  150. Darling amp plate voltage
  151. Sound quality of 6C4C is same with 2A3?
  152. 6,3VAC to 6,3VDC
  153. EL84 push pull idea
  154. Marantz preamp clone for newbie?
  155. Can I use Philips TB2.5 /400 in a SE ampl.
  156. Microwave + Computer = Tube? [help!]
  157. Oil Capacitor DC vs. AC Voltage Rating
  158. Plate Choke Miller Capacitance
  159. Anyone interested in building an EAR 834P?
  160. tube pre-amp
  161. Choke For Supply B+ Diy
  162. Audio Note DAC4 SRPP output stage problems!
  163. Regulated Dc Question
  164. what about tubes?
  165. Please help choose amp layout.
  166. SE 813 OPT..Am I On the right Track?
  167. say it's a hum problem
  168. Affordable KT88
  169. With transformer or OTL ?
  170. 45 SE tube amp OPT
  171. 2 Bogen 7027 tube amp vintage amplifier mono block
  172. Newnewbie Ouput Tranny question
  173. Webcor Amplifier Speaker
  174. could 24A been power tube
  175. How's this for a first amp?
  176. U.K. transformer supplier
  177. stereo el34 + kt66?
  178. Very tempting Good invesment or not????????
  179. A Heretical Unity gain line stage
  180. NFB net gain or loss
  181. Different brands:Is there any difference?
  182. McIntosh 225 Schematic
  183. LM317 for power amp regulation?
  184. KT88 or 6550?
  185. How to choose 6c33b?
  186. Using rectifier tubes in parallell
  187. Small problem at power off
  188. Preamp rebuild - hum problem
  189. what should I do with this tranny???
  190. Will this 2A3 PSE work?
  191. Ec86
  192. Worth to buy - tubes?
  193. 10/10/ preamp
  194. what do you think of this preamp?
  195. Tube FM -- Armstrong's first bdcst commemorated
  196. rjm 6dj8 phono section
  197. mercury vapor rectifier tubes on e-bay
  198. Russian Tube Stuff -- WSJ
  199. Help Please!!!!!!
  200. 5902 amp schematics?
  201. Microphonics...........
  202. High voltage PSU
  203. 2A3 v 6550
  204. Coupling cap question
  205. Wollcott cross coupled circuit
  206. TAD Tubes where are they from?
  207. ebay Junk or Treasures?
  208. interconnects
  209. In few words
  210. GlassFET Design Ideas
  211. ecc88 tube pover supply-rect.
  212. A tubeNoob enters => I bought a Dynavox VR-70E
  213. plugging guitar amp to phono reciever
  214. Heater Supply using LM3X7 current source
  215. Stepdown input trafo
  216. increasing the bias will cause the amp to.....
  217. Transformer faulty?
  218. More crappy Russian EL34s - Svetlana this time
  219. My Tragic story about Emission Labs tube
  220. Please help me solve the problem
  221. amp freq response with o-scope
  222. Can you SEE (construction) how a tube SOUNDS?
  223. CCS fed shunt regulators
  224. Recommended Modifications/Tweaks for Dynaco PAS-3 Series II Pre-Amp
  225. ebay toys
  226. Source for 6c45pi's???
  227. phono preamp design for c3m postie valve
  228. McMartin MA-50 Troubleshooting
  229. looking for something different
  230. mc275
  231. Sv572-3 Se
  232. Alps step attenuator
  233. seeking real kt90 pp schematics
  234. -50V negative supply
  235. Inductance coupling between chokes
  236. Mercury Magnetics
  237. warming up thetubes
  238. distorsion
  239. using a plate choke?
  240. Should I trash these tubes
  241. Minature Vaccum Tube Question
  242. 46 tube user
  243. Smells like a mistake
  244. Help for my hybird zero feedback AMP
  245. help on ul transformer please
  246. Wiring the D3a as triode - What is best?
  247. Switching from ultralinear to triode
  248. Help for a Output Transfo problem
  249. Pentode models
  250. Good or bad to use parallel capacitors of same value in signal path...

Content Relevant URLs by vBSEO 3.3.2