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. Graetz Scerzo Schematic
  2. simple se 2a3 amp help!!!!!
  3. 5bc3 rectifier
  4. Help me improve this PSU. (6c33 set, voltage doubler)
  5. Choke Loaded Driver Load Lines Question
  6. CCS and tube aging
  7. Tetra lives!!!!!
  8. Tube shops/supplies in Brisbane/Gold Coast
  9. AC VT25 filament?
  10. Let's show go on: Building Monster SE!
  11. Mystery 6AQ5A powered chassis?
  12. 6Y6G tube for low-voltage SE amplifier?
  13. Jolida gain and negative feedback?
  14. 1/2 of the tube for each channel?
  15. Problem with Legacy pentode driver stage
  16. 845 Operating Point
  17. Tube rectifiers
  18. D76 Inrush current limiter thermistor?
  19. New to Tubes? How to get the basics, read on..
  20. interstage tansformer impedence
  21. 2 PSU sharing the same Power transformer?
  22. Biasing amp
  23. CCS placement
  24. clueless on console
  25. Popping in stepped volume control
  26. 6by5 CRC Values
  27. Is this do-able?
  28. PCB for Gary Pimm's CCS & SS Pentode
  29. EL86 Single Ended PP Power Amplifier
  30. Diyhifisupply Billies - dead OPTs?
  31. 6H30P-DR
  32. Tube AMP and stax headphones....
  33. soft start power supply for dynaco st-70
  34. The Telefunken EF86?
  35. Can you run parallel circuits from a rectifier?
  36. Mullard 5-20 with 6L6GC's?
  37. Adding balanced input to 6N1P tube.
  38. Partial feedback (anode grid) with cathode follower
  39. 4P1L as First gain stage or in Pre-Amp..?
  40. Advice on 6418 design requested
  41. Shorting jumpers for octal sockets
  42. Tube lineup in an Admiral y4302
  43. John Broskie MIA?
  44. Audio Research VT 100 MKII need help!!
  45. Help with AD30 PSU build
  46. Who was the Japanese Amp Guru?
  47. 6922 vs an ECC82.....a test.
  48. Triode connected 6LW6 for SE
  49. 12AD7???
  50. New Book Review
  51. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  52. looking for hi volt commercial power supplies
  53. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  54. ECC85
  55. Pioneer 304B fm/am reciever schematic
  56. ECC82 JJ Made in Slovak Republic!?
  57. Definition of matched
  58. Polycarbonate as coupling caps?
  59. pick tubes for tubecad unbalancer
  60. OPT for EL34
  61. 12v dc tube amp/pre high SQ
  62. Better than 12au7?
  63. Amps and 4-ohm loads
  64. What is the "best" tube amp / speaker / source you have ever used?
  65. 814 as Triode / Max. Ug2 voltage
  66. valves better than solid state?
  67. musical fidelity x10d clone
  68. Acrosound 7591A amp
  69. suggestions for simple amp wanted
  70. Wish you could nail down your copper wool holder?
  71. HELP- Pricing Genuine Genalex KT77's
  72. K120 on 6550/KT88/KT90 anyone tried???
  73. do tubes ever leak b+ into heaters?
  74. How can I use these high-current, low-inductance chokes?
  75. 6005w Q+introduction
  76. Sonic Frontiers Line 3 Increate the Output Voltage
  77. Dynaco ST-70 chassis
  78. Opinion on the scheme with the 12AX7!
  79. Fully Parametric Tube EQ (with gyrators)
  80. 600v snap-in electrolytics
  81. anyone knows of 6 channel tube amplier ?
  82. 6N6P SE idea
  83. EL84
  84. Long tails and current sources
  85. How to reduce gain in mu-follower?
  86. Chassis
  87. Single Ended Amplifier 6P43P
  88. 6C33C spacing
  89. A very excitable Luminescence
  90. KT-88 Data sheet question.
  91. Good 12ax7
  92. Operating points theory...
  93. 1-stage (killer, literally) amp made of junk
  94. What should clipping look like? (AKA reading sine waves)
  95. Combining coupling cap's
  96. Quicksilver Mono Amp Model 1300 - creating Auto Bias wanted
  97. 845 with kathode bias
  98. Mixing Resistor types?
  99. Looking for EI-75 80% perm ...
  100. Ambient temperature target
  101. Old radio
  102. JJ glowing twice as bright
  103. DPA150
  104. Discharging a capacitor - should I??
  105. German transformer builder
  106. 6P30B-V subminiature tube
  107. Improved Tube Headphones Amp
  108. Best method of reducing line voltage into vintage transformers?
  109. Harman-Kardon TA5000X, A500 or A50K OPT - Quality?
  110. hum measurement
  111. DIY 450VA+ multi-tapped tube power trafo
  112. DIY 450VA+ multi-tapped tube power trafo
  113. Duelund Alexander Copper Foil Capacitors
  114. Yaqin MS-20L tube recommendation
  115. Tube version of aleph-x. Is it possible?
  116. help - Looking for specs Trimax TA1439
  117. where can i get transformers in the UK?
  118. Mono 5W-17W Power Amp using EL84 push-pull
  119. Reference Books
  120. Tresco?
  121. BELL 3DT, Phono RIAA Odditty
  122. 6SL7/6V6 tubes in an RH84 SE amplifier?
  123. How to calculate max voltage swing in cathode follower?
  124. Silvaweld OTL Tube Reference 100 schematics
  125. Unison Research SMART 845
  126. 26/45 SE amp ?
  127. Sweep Tube SEP
  128. Help me find cirquit, I forgot where I last saw it?
  129. Plate resistor for FVP5a
  130. Simulation
  131. DHT w/ DC heater - How to rig cathode bias?
  132. schematics needed- Luxman MQ70
  133. CSS for 6c33?
  134. Svetlana (Winged C) 6L6GC vs. the Others...
  135. Power Supply Help- 807's, High Voltage
  136. Looking for info about a 1940s Amp
  137. More amplifiers in the Wireless World Archive
  138. why does my amp require a preamp?
  139. Why two GZ34 in this schematic?
  140. Floating Dc heaters, capacitor to ground
  141. anyone have experience with 1J17B tube
  142. Preventing arcing on standby switch?
  143. Help with buzzing mains transformer
  144. Balanced Amp Topology
  145. ECC33
  146. Distortion spectrum vs feedback
  147. Heaters question
  148. Why do transformers have such*&%#* hardware?
  149. what's my fisher 400 off gassing?
  150. Executone schematic needed
  151. parafeed output amplifier
  152. B+K 500 Testor Question
  153. CCCP SUBTUBE: my last project
  154. Aikido Line-Stage jumper question
  155. Tube Amplifier to power Gale GS401 speakers
  156. Bypass Cap on cathode?
  157. How to measure/calculate dB of negative feedback?
  158. Need your advices & experiences
  159. Parmeko gresham transformers specifications
  160. Valve cascodes for Phono input.
  161. ST-70 XLR Balanced Driver Boad
  162. I'm new here any places for like us newbies?
  163. Noob looking for some advice
  164. QQE04/5 Curves
  165. Help on Audio Research D79A adjustment
  166. lazarus preamp hums even with volume down and no components connected.
  167. Troubles when elevating a LT supply
  168. Turning up the heat: cathode bias
  169. Anyone build Dynaco Mk IIIs with Sullivan boards?
  170. Lowering gain on Frank's 6SN7 preamp
  171. Pro amp input modification
  172. Sanity of compactron for "integrated" headphone amp?
  173. HELP - SMART 845 or 300B SE
  174. DC Servo - Direct Coupling Applications?
  175. Edison 12 amplifier
  176. Mounting terminal strips to blank copper board
  177. 6C33C tube socket for GM70 tube??
  178. Fisher X100C 2 sets speakers?
  179. 4P1L DHT Line Stage
  180. Trying to identify an old radio tube
  181. Yaqin CD3 upgrading caps help for novice
  182. push pull adjustable fixed bias
  183. Another SE amp design.
  184. Chassis to experiment with....
  185. Ray Butts Echosonic #27
  186. What coupling capacitor values are common
  187. Yamamoto A-09s
  188. 9001 variant of Acorn 954 Pentode
  189. Khron-Hite UHR220 tube power source
  190. Grounding the 4ohm tap
  191. Rectifier mechanical buzz
  192. Informed opinion(s) on phase inversion?
  193. Strange problem with Grundig CS200 tube receiver
  194. Puresound P10 RIAA
  195. Need help on DIY Toccata Phono Preamp
  196. Single 6EB8 tube kit?
  197. SE OPT as PS choke
  198. Best input DHT tube?
  199. Stainless Steel Chassis Polishing
  200. Hm, which order to replace 2 out of 4 tubes?
  201. EL34 Musical Machine Output XFMR suggestions
  202. Driver stage to finals newbie questions - (I hope not dumb questions)
  203. Preamp with single 12ax7 Ecc83 for stereo?
  204. Ming-Da MC-300B845 schematic needed
  205. My RH84 Build - first amp after a 25 year break -:)
  206. Jolida 502a Snubber Mod
  207. Again
  208. KT120, PSE
  209. 6v6 bias with cathodyne
  210. How did the "magic eye" work on old valve radios ?
  211. High voltage switching
  212. High voltage switching
  213. EF184 as ccs / design questions / spice model
  214. ECC807
  215. Chassis thickness
  216. Compactron 6C10 & 6Q11/6K11 tube data
  217. Reverse Engineering leads from Tube amp
  218. Did you all see this??
  219. WESTREX 60 WATT AMP
  220. Johari's audio system
  221. el95 single ended amp project needs help with preamp
  222. 3 ways active crossover
  223. 5691 tube tonal balance
  224. Dynaco Mark III chassis
  225. Stancor A-8053 Output Transformer - opinions wanted!
  226. Nice OPT's for headphone amp...
  227. Eimac 304TH anode question
  228. Is WE310A > 45 > 300B PP possible?
  229. Aikido 5687 PCB - Headphone and C3
  230. Tube RIAA(something easy)
  231. Testing power pentodes
  232. NTC THERMISTOR as SOFT START for TUBES
  233. NEW ARIA (MENG) MINI 6P1
  234. Basic schematic for Dodd Audio tube buffer?
  235. EL844
  236. Tube CAD?
  237. Cap Problem with philco 49-1401
  238. Music Angel
  239. Help 7189A Tubes!
  240. Bulb in cathode?
  241. Gain and volume pots - newbie question
  242. Resistor test TX7525 AMRG CMF55
  243. I think I made a mistake
  244. 12at7 and 12au7
  245. PSE KT88 using Mikael's basic schematic.....
  246. Mods Tube Amps/Pre-amp
  247. Help to find out what OPT are these
  248. LL1660 P PZ Lundahl interstage ringing problem GM70pp
  249. Adding Bal output to Akido
  250. Input impedance, the higher the better or not?

Content Relevant URLs by vBSEO 3.3.2