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. Magnavox 50EH5 Stereo Amp
  2. My new Circlotron OTL tube power Amp.
  3. ideas for a tube eating guitair amp
  4. 6DE4, unused pins
  5. 300B what output transformer Sowter or Lundahl?
  6. 6DJ8 preamp w/balanced input - strange schematic
  7. Screen Grid Regulation Requirements
  8. Advice needed on new 6L6 ro 6V6 SE or SET build
  9. need a little help with an HK solo2 tube receiver
  10. Help me to build Vacuum Tube Amp.
  11. amp with SRPP output stage? post if you know one
  12. Output transformer question
  13. EF86 Phono pre-amp or Mcintosh MC2200?
  14. Transcendar is Branching Out
  15. can SE driven PP be clean enough to sound SE ?
  16. k12-m amp not working
  17. 813 amp and old choke
  18. Several hundred tubes found! What to do!
  19. Possible to convert Audiorom Fu29 to Single end?
  20. Measuring bias
  21. ecc802s SRPP preamplifier
  22. HELP! Capacitor specs for Sonic Frontiers SFC-1 Control Amplifier
  23. Class A KT88 info
  24. What is screen tap of transformer?
  25. Brightest heaters in tubes?
  26. 40% tap or not
  27. 6dj8 phono schematic needed
  28. EL34 Parts..
  29. solid state driven p-p ultralinear
  30. linestage w/separate PSU: where to "split" ?
  31. Anybody know this TELEFUNKEN SE transformer?
  32. Too much feedback?
  33. Tube Power Supply Dummy Load
  34. For 6c33 Fans. A new schematic
  35. WAD phono 3 motorboating with Raphaelite 300b
  36. Vintage Stromberg Carlson
  37. GM70 and Other LTSpice Tube Models
  38. Please help me understand this feedback
  39. Affordable Valve Company - Re-bias
  40. The effect of different value coupling capacitors?
  41. Closed loop stability help needed.
  42. EAR 509 OPT Impedances
  43. Installing Hammond 1609s in K12-G
  44. 6088 Amplifier
  45. Valve Art kt88 not the same ring getter?
  46. 5mA DC transformer - tube output stage?
  47. Mini amp questions
  48. What mean those russian electronic units ?
  49. Coupling capacitors
  50. Monsters thread (high power tube amps)
  51. CCS on LTP please help
  52. Best type of pre-amp for valve/tube power amp
  53. 12au7 made by Toshiba, Hitachi, Matsushita, RSD, International and Miniwatt?
  54. Load lines
  55. Cold cathode tubes
  56. Redundant CNC stainless steel enclosures
  57. First try P-P 6S41S design
  58. Help!!! I need to get valve TAW12/20B / TRIODE for use as HF amplifier and oscillator
  59. Velleman K4040 Stereo Vacuum Tube Amplifier Volume Control
  60. 12AT7 Regulated Power Supply
  61. 2A3 to 45 Cathode Wattage?
  62. Cheap Chinese Ebay Amps
  63. Audion Sterling Integrated Amp Version - Stereo MK-I - Extended Live Time wanted
  64. Transformer Center Taps
  65. PTX temps
  66. Can A valve amplifier be both Class A and Class B?
  67. got a problem with my scope, need some advice
  68. DC coupled cathode follower driving me nuts
  69. Vacuum state gone?
  70. 1634 dual triode
  71. Aikido line amp
  72. Winding an ISO TX with pair of inductors
  73. Quad II Switch Mode PSU
  74. What do do with all of these?
  75. global negative feedback in el84 push pull
  76. Old HP transformer - what is it?
  77. FET Phase inverter to drive valve PA
  78. Core Audio 6BC4 buffer problem
  79. Power Amplifiers & Gain
  80. Power tube maximum current draw from a power supply
  81. Tube Matching in a Power Amp?
  82. SE stereo / PP mono block schematic choices
  83. How to measure output transformer?
  84. Shoddy Packaging
  85. Schematic needed for Manley SnapperŪ from Manley Labs
  86. Resistor, capacitor across output transformer AKAI M-7
  87. eBay&etc cheap tube buffers/preamp .. anything good?
  88. 6N3 Preamp Question
  89. OK guys...be gentle
  90. 6SN7 and DN2540's
  91. 10k and 6k primary windings on OPT. Use for UL?
  92. Settings for PL509, EZ80 tubes on 539c tester
  93. replacing 6LGC with 6550 or KT88
  94. ECC83 input circuitry
  95. Dynaco MK III modifications
  96. SMPS for heaters
  97. Headphone tube-amp with oddball OPT
  98. Neon Lamp Question
  99. Curious old tubes from tandy
  100. 828 Triode Curves?
  101. 813 review
  102. tube circlotron for headphone amplifier
  103. valve headphone pre-amp
  104. Shengyi 6AQ5
  105. Burn in small signal tubes?
  106. 24V powered 6N11 amplifier, 0.25% distortion, pretty good!
  107. SS diode replacements
  108. can you check if everything is ok with el84 schematic please
  109. Advice on this amp schematic please
  110. 8156's
  111. Can't get anything from my new pre-amp
  112. Bottlehead Paramount Question
  113. need help with ac/dc am/fm radio
  114. Peculiar oscillation
  115. ECC83 settings for Taylor 45C
  116. New Jolida 302b amp owner questions
  117. Help with gyrator
  118. Some basic questions...
  119. I have a hard one for you guys
  120. CCS pulsing oscillation problem
  121. tube testers: different gM standards for same tube?
  122. Frank's Pre Still In Vogue?
  123. Home made tube amps
  124. Source for SED "winged C" tubes?
  125. Preamp Help
  126. Push Pull Class A
  127. Multi-Ways Output Transformers
  128. Redplating anomaly?
  129. Just for fun power poll!
  130. Biasing a Jadis Orchestra
  131. Yaqin MC-50L
  132. CJ PV5 Upgrades?
  133. New Member - Magnavox Amps
  134. Double parafeed
  135. 6550 grid characteristic help please
  136. Newbie- Tube Testing RF Amp tube
  137. Urgent:Wrongly order 220V Power supply for 230V enviroment
  138. Mono sub-out from one trafo?
  139. Mu Follower to drive a Push-Pull Amplifier?
  140. The 6934A Triode Tube
  141. Constant current sink for 6SN7
  142. 6V6 high voltage
  143. VTL deluxe 100 monoblk (KT88) need help?
  144. Va,Ia exeed limiting values in datasheeds ?
  145. Old DIYtube ST-35 electrolytics - swap?
  146. What Hammond for UK?
  147. What would you build with this transformer set?
  148. EL86 / 6CW5 + 6BQ7A amp design
  149. Western Electric theater amplifiers; how to hook them up?
  150. 12AU7,12B4A PSE schematic needs finishing!
  151. Dual grid and plate pins
  152. Best sounding ECC83 ?
  153. tube output for Playstation 1
  154. 6GX8 as Audio Level Indicator?
  155. help on 12AU7 Preamp circuit
  156. Anyone bought tubes from http://www.nostubestore.com/ ?
  157. Tube pre-amp with exposed tubes?
  158. Using low voltage lamp in power supply
  159. GU 50 monoblock
  160. KT-88 Push Pull with CFB
  161. 12AX7 + ?? Ideas 2A3 // 6L6
  162. Formula for driver current requirement ?
  163. Need a little help with a regulator circuit if you are willing.
  164. Troubleshooting help for 12AQ5 amp
  165. Can anyone help with an ef86 tape preamp mod please?
  166. Herald Amp
  167. To switch B+ or not?
  168. All-tube vs tube/mosfet hybrid ?
  169. 6c33c-b question
  170. 12AT7 substitutes?
  171. 1st project salvaged sears receiver iron need good amp schematic
  172. FM-3 ? About parts replacement in IF stages
  173. simple EL84 parallel?
  174. Finished: Claus Byrtih EL34 amplifier on Isophon BS35 speaker set
  175. Bogen CHB100 Valve Question
  176. 1st build; Adding load to PT secondary
  177. need help RCA RS 199C
  178. Unusually high Gm
  179. RH84 motorboating, stereo vs mono
  180. Use a tube rectifier for grid bias voltage, AA5 Radio tubes and usage.
  181. Cathode bypass with Long tail pair
  182. new chinese tube manufacturer
  183. Black Gate WKZ - can they be used in these circuits?
  184. Yet another question about HV Maida Regs
  185. Question about vacuum tubes
  186. Scott 299D Calibration
  187. Score! Bag-O-tubes!
  188. Building a tube integrated amp
  189. Audio Note Kits L1 Build...
  190. Need help with old mic amp
  191. Temporary hum
  192. Unidentified Tube - One for the detectives!
  193. Rogues?
  194. What about big tube RV278 Telefunken?
  195. variac variable transformer
  196. Tube amp OPT for Headphone Amp? (impedance matching question)
  197. current needed for 4x50l6 & 3x6sn6
  198. 6N11 tube work at 24V power supply?
  199. Heater voltage 5volt!
  200. help me choose a high end opt for tubelabs SE!
  201. 6L6/807 AB2 triode-- screen drive?
  202. help troubleshooting
  203. Anode Follower Article
  204. ECC802S 12AU7 ECC82 heater question
  205. Books for amplifiers
  206. E180F Preamp
  207. Don Allen Amp's ????
  208. To connect or not to connect..........
  209. Phonostage with tube moving coil
  210. 300b tube Temperature?
  211. Center tap transformer for elevated heater supplies
  212. single ended kt88 fuse blowing after an hour
  213. Radiotron question
  214. suggested use for old telefunken tubes
  215. Using different ouputs for two different drivers
  216. Pete Millett Uniamp with 300b
  217. Cary slp-70
  218. How to combine 2 signals from 2 gain stages
  219. Increase B+ supply
  220. Aikido Tetra Sans Phono PCB
  221. Loadlines and distortion (6S33S/6S41S)
  222. home theatre bypass feature
  223. Doubling the power of hifi tube amplifiers
  224. Can this tube be used in audio amplifier?
  225. 100 V OPT
  226. Help me understand tube chart data
  227. Listening preference....
  228. tube socket legs?
  229. Stand alone gain stage pre-amp
  230. I kinda sorta burned up my K12-G power transformer
  231. RCA-182 Tube Amp
  232. Transformer potting material? what material?
  233. Ultimate 6xEL34 PPP monoblocks? Hopefully with your help :)
  234. tube amp/pre in car?
  235. Thorsten's tube Stage for TDA1541A
  236. Convert Gates pre-amp to DC filament?
  237. any suggestions for a mid-amp transformer for a hybrid design... like this circuit...
  238. how much C is too much C?
  239. fisher 70AZ
  240. RE: My first attempt at using Tube Cadd
  241. Srpp simple explanation
  242. Driver for a 807 em triode mode...help !!!
  243. 6J6-based SSMH?
  244. Small tube amp based on 6N6P
  245. replacement for Ei 12BH7AEG
  246. Preamp input tube noise
  247. How much is too much for a 6L6GB?
  248. What is the proper way to measure transformer inductance?
  249. Audio Research LS8 mod. to MKII
  250. Futterman stage max input

Content Relevant URLs by vBSEO 3.3.2