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 98 99 100 101 102 103 104

  1. Hybrid Tube / Mosfet Amplifier
  2. Again (sorry) what's the biggest 6V heater double rectifier?
  3. PP EL34 circuit wanted
  4. Need advice for transformer for tube GM 70.
  5. Pentode filter
  6. How to calculate for cathode follower
  7. 6L6WXT in a Dynaco ST-70
  8. tube preamp using submini tube
  9. SE Trafo for PP use
  10. WE91A Pentode Questions?
  11. Lower voltage Dynaco ST35 for 6P14P // 7247 replacement
  12. looking for schematic; three EL84's in PSE ?
  13. Need work done on a dynaco power amp
  14. quick question on fixed bias
  15. DIY Tube Audio dealers in New Zealand
  16. ornec
  17. Tuner filament supply question
  18. An idea for a partial feedback pentode amp using 6AU6's and 807's
  19. Tube current regulation for series heaters' supply.
  20. Bogen PCA-1 two tube booster amp
  21. First time building a tube preamp
  22. B&K 700 problems?
  23. Voltage Multipliers
  24. Russian 6P14P tubes
  25. Where to get tube spec sheets, pinouts
  26. PCL 82 Hybrid 2SC5200/2SA1943
  27. CCS in Otput Tube Cathode - Does It Make Sense?
  28. My brew of the "Darling"
  29. Series connection of filaments
  30. noisy filament transformer
  31. Circuit diagram for Trilogy VTi.
  32. Got oddball tubes!
  33. A photo for my question
  34. Make a preamp with an already buil amplifier
  35. DN2540
  36. mods for almarro amp
  37. Filament Transformer
  38. Circuit indentification
  39. Simplest Tube Regulated PSU?
  40. High Voltage Insulator for Umbilical
  41. wiring diagram, instruction on the transformer S-265-Q
  42. help me get started
  43. 12AU7 instead of 6C4
  44. Fisher 600 questions
  45. Phase inverter
  46. srpp input stage
  47. Orientation of EL34 Tubes
  48. Load termination ?
  49. Advice on SE DHT for Lowther Fidelio DX2
  50. Biggest dual triode output tube?
  51. OPT impedance question
  52. Partridge SE O/P transformers
  53. SimpleSE and me
  54. SRPP decoupling cap vs. output transformer
  55. Differences between 6SN7GTA and 6SN7GTB?
  56. Radford STA-15 questions
  57. Balanced Input Hookup
  58. Need Tube Testing Settings for 3 tubes
  59. Need helping in Grounded Grid preamp using 6H6P 6H30P
  60. Regulated Lab DC power supply
  61. Fixed Bias 6BQ5?
  62. Music Angel vs Mr Liang L1-L3? And best speakers for 3k budget?
  63. NEWBIE question SET vs. Solid State
  64. 6N6P cascode + 6AS7 Cathode follower
  65. Help me calculator OPT for 807, 6C4C tubes.
  66. Now I have caught the bug - next project
  67. 20W cathode follower amplifier
  68. Muting line level signals
  69. Anywhere in Hong Kong...
  70. RIAA / Pre mod/upgrade
  71. IT WORKS! Tube Phono Stage
  72. 2033 info sought
  73. Pentode Zeus
  74. 5987 (sc968b)
  75. Low Voltage Plate Follower 6DJ8 Buffer Power Supply
  76. JAN Sylvania 7308 vs. JAN Sylvania 6922
  77. recording amp
  78. A Tee-Vee T00b Amp
  79. Locating a bad resistor
  80. MiscEI
  81. ST70 iron recommendations please
  82. need help finding a link . . .
  83. Cathodyne Phase Inverter question
  84. Using a ignition coil for a audio transformer
  85. Multiple primary windings
  86. mcintosh mc3500 clone
  87. B+ Delay
  88. My attempt: 5 element Pentode Spice model
  89. Spelling, capitalization, and grammar.
  90. Power Supply
  91. Output Autotransformers
  92. Multi Section Cap....diy?
  93. Mullard: Tube Circuits for Audio Amplifiers" - Price?
  94. Tube rectifier to Solid state Diodes exchange
  95. Custom Cards For B&K 675 Tester
  96. Bada PH-1 simple box mod
  97. Tubes Rectifier Help?
  98. Cascode with local feedback
  99. amps
  100. how to preserve copper plates?
  101. Stereo EL34 amplifier
  102. tube amp transformer identification
  103. SA 3000 Counterpoint
  104. Beginner needs advices for 807 PP project
  105. Heater Power Supply Pspice model
  106. FWCT Rectification
  107. dc or not dc
  108. OTL for dummies.
  109. TCJ Cathode-Coupled Amplifier
  110. 845 Low voltage SE AMP
  111. Getting a vintage amp to work
  112. Switched DC/DCconverter for B+
  113. What can I do with this?
  114. Super Pas Two
  115. pspice model of 811A
  116. Question on what is more important B+ or Plate Voltage
  117. Can I trust SPICE?
  118. Power supply filter mod
  119. Does antone interested xxx PCB groupbuy ?
  120. 1 signal ground or two?
  121. #47......
  122. Hammond 1650F
  123. 100 watt KT88/6550 Designs
  124. What glue to use for tube glass bulb + base
  125. Tube filaments (heaters) power supply
  126. Quick Ecl86/6gw8 Amp
  127. Need help on eq. hook up for new tube system
  128. Alternatives to the Dynaco ST-70
  129. I need some eq. hook up expert advice please!
  130. Please help identify which plug I need for this socket
  131. Svetlana KT88 winged C's failings
  132. PP amp using 6p15P
  133. Time for another round of "Criticise my Circuit"... err..I mean
  134. Adding a parallel feed on DRD
  135. Hybrid amplifier A2 class
  136. Diodes on power supply output for voltage drop?
  137. Converting from single ended parafeed to differential
  138. micro-amp SE with 2,5k OPT+
  139. Unknown Tube Amp
  140. Aikido AC Heater Supply
  141. Help me find some odd looking rectifiers!
  142. So, you may have been wondering...(813 Content !)
  143. Just sharing my 26 experience last night...
  144. Simple 5842-45 SET Amp Design Idea
  145. Yamamoto teflon sockets
  146. new thread, 6BM8 PP build begins...
  147. KT88 Heater Current
  148. 150V plate output tubes
  149. Newbie need to help
  150. Help me please
  151. Elekit TU-870 help
  152. Looking for schematic of Audible Illusion Modulus 3A preamp
  153. Junker Box amp
  154. aikido hybrid with 5 A bias
  155. Shall we compile a list?
  156. drift in direct coupled tubes
  157. Hammond 2XX vs 3XX Power Tranny Questions
  158. Help with this transformer please...
  159. Capacitor upgrade in Paragon 12A
  160. Light bulbs as cathode resistors?
  161. Favorite Threads and Posts in "Tubes" Forum
  162. I need 12v DC- whats the best option?
  163. Beard P35 and Tubes Replacement
  164. Graphic 1/3 Octave Tube Equaliser
  165. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  166. Power Supply Design
  167. Gomes amp
  168. pignose g40v power transformer
  169. Grid battery biased SE output stages
  170. KT88 amp schematic/parts list
  171. Wire Wrap connections for point to point
  172. Aikido Tubes
  173. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  174. Schematic Question
  175. EL34 as triode?
  176. Linestage Questions
  177. Help! Building Jax's HFTA
  178. Gobs of AC on ISCO 494
  179. Change step up ratio of input transformer?
  180. LCR RIAA rebuild
  181. common mode choke question
  182. Choosing Choke
  183. Input impedance
  184. Hybrid Rectifier Check Please !
  185. 1st tube project, tubalizer?
  186. 1st Time project - Report 1
  187. ED-8000 set amp
  188. Cheap and nice looking SE OPT
  189. How much difference 0.22 vs 0.33 cap?
  190. 813 final design?
  191. Counterpoint tube amps
  192. HPHV regulator, designed by Emile Sprenger
  193. SS or tube voltage amplifying stages in an amp with tube output?
  194. 24V Aikido --> 6GM8 with Buffer
  195. Motorboating in Dynaco ST-70
  196. Does such a tube exist?
  197. Noisy PSU?
  198. Bell & Howell amp
  199. Valve Amp with soild state front end
  200. Controlling transient response
  201. Transcendar Budget SE Transformers
  202. Opinion on New Sensor 6SN7GTB?
  203. Determining optimal OT turns ratio
  204. Splitting up the Power Amp
  205. Sowter 5113
  206. Cascoded 6N6P
  207. MachMat or Tentlabs Heater Supply for 300B
  208. Common mode filtering for heater supplies.
  209. Distortion.
  210. 83 rectifier peak repetitive current?
  211. 813 Project has begun !
  212. C3G PX25 DRD - Will it work
  213. 6J5 (Metal Tubes) ....something goes around inside
  214. common-mode chokes
  215. EL-34 and 100k pot
  216. Scott 299 (late) OPT's
  217. Tube magazines
  218. PP plate-choke?
  219. More Phase Splitting Questions
  220. Concertina sanity check
  221. Transformer Specs
  222. The Aikido or Moskido??
  223. KT88 PP suggestion
  224. Ultrapath line amp
  225. Gross loudspeaker cone movement when using tube amps.
  226. Pre-amp power iron advice??
  227. Class A 8417 Amp
  228. DHT output tubes and DC heating
  229. rock music and SE?
  230. Disadvantages of using Zobel and Series notch filter ?
  231. old days source
  232. Mu-follower vs common cathode w/- active load
  233. K40 or K42 Russian PIO: what would you use/recommend?
  234. CCS turning off prematurely?
  235. ESL amp again!
  236. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  237. Does anyone know the output transformer specs of the...
  238. SE EL84 project for my friend
  239. SE amplifier - How much power?
  240. what speakers do you use?
  241. A Tube amp for a Hostille Tube Enviornment
  242. practical choice for an amp
  243. Simple cathode CCS
  244. 2A3s in push pull; class A
  245. 5 VDC heater question
  246. Power transformer snerring.
  247. Subminiature Tube & Tripath Hybrid Integrated
  248. 211
  249. Which of these output tubes?
  250. High Voltage Heater info

Content Relevant URLs by vBSEO 3.3.2