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

  1. Boosing the power of your existing amp.
  2. Component ID from a 50EH5 Amp
  3. Music Angel KT88 Bridged /Bias problem
  4. Output of preamp drops when overdriven
  5. Choke load calculation...
  6. 807 SE amp schematic
  7. DC Heater Voltage
  8. Choke loading vs. SRPP
  9. Unloaded Power Transformer Current Draw/Janus-Aikido snipet
  10. Need help with tubed output for PCM1793 DAC
  11. Single ended transformer grounding question
  12. Reforming Caps with Variac
  13. First Shot at a 41 SE amp
  14. [Question] Ground Error?
  15. TOMIKO OPT-SE, any good?
  16. 6550 Williamson - Low Bass Response...
  17. Preamp design question
  18. Reading Oscilloscope Traces -For Dummies
  19. Power Supply Question
  20. PI Question Guitar Amp Related
  21. Altec 1568A modifications for comments and help…. again
  22. H & K Tube 20 unruly gain
  23. Electro-Harmonix interview
  24. Using LED bias for 4.5 mA cathode current, is it a good idea?
  25. amp dead?
  26. 7189 vs EL84 +458v plate
  27. What does your Aikido drive?
  28. Help with Decware SE84 Kit!
  29. Hybrid Amplifier in Small cases
  30. audio mixer with tubes?
  31. Epiphone Galaxy 25 transformer problem
  32. Help with KT88 biasing
  33. Bad Schottky??
  34. Aikido Diagnostic
  35. Could this become a Baby Huey killer ?
  36. SV83 vs EL84
  37. KT88 PP-5 Monoblock Amplifier
  38. RE604 SET amp
  39. Dropping rectifier filament voltage
  40. need suggestion about MC pre-pre
  41. New gain stage .. Opinions???
  42. Using SS to augment < 100Hz?
  43. A help with an soviet transformer.
  44. I thought that I had seen everything
  45. Triatic PP-amp with 6p14p
  46. Single 6N6P stereo pre-amp
  47. Tubelab SE input tube filament
  48. high frequency oscillation and decoupling question
  49. Long tailed pair schematic questions
  50. CCS Kit options
  51. Variac Question for Thatch_Ear
  52. 13e1
  53. Rogers Tube Amp
  54. Pair of McIntosh MC-60 on Dallas Craigslist
  55. Lundahl LL1517. What is it good for?
  56. Edcor OPT Voltage Rating?
  57. Which Tube to Start with?
  58. Basic Transformer hookup wiring
  59. Beta followers, biasing.
  60. 6W 2xEL519 Half-hybrid Class-A OTL
  61. Can a Class AB PP amp be said to be operating in Class A at low signal levels?
  62. Wiring / Layout question
  63. Yaqin MC10K
  64. help me lower the gain of this preamp pls
  65. How to wiring the transformer
  66. "universal" P-P driver board
  67. series or parallel?
  68. Question about Cathode bias in this Magnavox amp. . .
  69. GK71 B+ turn on delay
  70. Paralleling Triodes in a 6SN7GT
  71. 6C33C-B. PP or SE ?
  72. 6550 Triode B+
  73. Aikido Phono Pre.....any good???
  74. Tube Preamp L&amp;R Channel different current draw
  75. amp is dead!
  76. What you think about Ayon Audio Spark SE 6C33 tube 22 W
  77. Running stereo through a single tube with dual triodes?
  78. Looking for 6AQ5 audio preamp schematic!
  79. Quad KT88 oscillation problem
  80. El86 driving high beta bipolar power tr
  81. Wikipedia article: Tube sound
  82. Installed 12&quot; Speaker in Pro Jr---Now What??
  83. How do I design a pentode constant current source plate load?
  84. Socket for 6AQ5
  85. new 845? Who produces it?
  86. Looking for a 45 SE Schematic
  87. Counterpoint SA-12 outputs 2SK134/2SJ49 work??
  88. Tube Amps left outdoors 24/7
  89. The beast OTL
  90. Input transformer: floating input = distortion
  91. Altmann's Split Feedback concept
  92. preamp for a JE LABS 2A3DX amp
  93. Phase flip needed -Interstage Transformer?
  94. Can your amp do this?
  95. AES out of 1625?
  96. Any info on Haltron 6BL8 tubes?
  97. Need Schematic for 12 Volt Tube Buffer
  98. Input impedance for Simple SE?
  99. SR-101 Pioneer Spring Reverb
  100. Basic Transformer Question - how do I know build possibilities?
  101. Source for 2.5VCT 5A filament transformers
  102. Nichicon VR VZ or GU
  103. Missing 6.3V CT/'Cockeyed Bridge' problem
  104. Best plate voltage for 6dj8 at +-6ma
  105. Max supply voltage for small DHT's
  106. Operating Temperature of KT88?
  107. First Tube Amp
  108. earthing advice on a US amp
  109. distortion at low volume
  110. interstage transformer cheating?
  111. PP EL34 or 6L6 circuits?
  112. Rectifier Capacator (voltage adjust)
  113. Passive RIAA and cap variation
  114. 6T9 push pull with Cathode Coupled input
  115. mixed bias
  116. Need help: tube DAC and Phono pre-amp
  117. Feedback equation
  118. Lafayette PA 675 Schematic ?
  119. phono preamp?
  120. Input tube recommendations...
  121. blind test tube preamp free for all
  122. Estimate Miller of Triode Strapped Pentode
  123. Tube Care for Prolonged Life
  124. bias resistor to use for a PP 300B?
  125. 12AY7 preamp schematic
  126. visio shapes
  127. vt25 in pre amp
  128. Wire Wound Pontentiometers - resistors
  129. Sound City B120
  130. Single supply 6922 buffer with 2SK CCS
  131. Aikido and 30W Class AB power buffer?
  132. Simple Pentode driver for a 45 ?
  133. Sennheiser HD 650 Question
  134. ampeg svt 2 pro preamp problem
  135. Edcor specs?
  136. hook up wire
  137. 6X5, 2x 6SL7 &amp; a 6v6GT....
  138. strange tube? E-8128
  139. Value of grid-leak resistor
  140. TubeTech Valves
  141. 1st build done.
  142. Tube socket does not fit tube
  143. 300B SET Bias Help
  144. This Connector for an Amp Umbilical?
  145. Chassis Grounding and rectifiers
  146. TechTube TM Blackburn status
  147. Protection of tubes/amp...
  148. 6sf5
  149. EF86 - Interstage transformer - EL84 PP AB
  150. Schadeode
  151. High-power amplifier using transmitting tubes
  152. Basic testing/meter question
  153. Mains voltage change for Sonic Frontiers SFS80 ?
  154. transformer unused secondary noobie question
  155. Acrosound High Power Williamson - HELP!!!!
  156. 300B Cathode Feedback + Cathode Bias
  157. "Budget" GM70 SET
  158. Chokes next to output transformers?
  159. Adding more power tubes and make a tube amp switching them?
  160. 1. time biasing...
  161. SE solution wanted
  162. tube rectifier
  163. Baldwin amp, yet another amp conversion project
  164. sorry, yet another newbie - what can I make with these???
  165. Design Help (load line) on a SE Mono Block Amp build
  166. Plate Choke SRPP…. What do think?
  167. Looking for a Fisher chassis 51 mono amp
  168. Majestic Transformers
  169. Inverted Mos HV soft start
  170. Strange S5 K-16LS oscilloscope readings
  171. Why don't pentodes require aligned grids?
  172. First design for a tube noob
  173. Newbie and ASL Wave 8 problems
  174. Evil Experiments - Hammond Paper in Oil Caps
  175. Now I know what this Tranny can do
  176. Pinnacle tubes??
  177. First Project.... and Hello
  178. VTL Integrator schematic
  179. Old transformators...
  180. 12AU7/12AT7/12AX7 preamp schmatic needed
  181. Booz preamp
  182. Mystery &quot;The Fisher&quot; console mono amp
  183. Cracks and hiss in tube guitar amp
  184. Voltage Doubler
  185. Gas Reference Tube (5651/85A1/etc) Internal Impedance
  186. Sakuma-San Pilgramage?
  187. Any HP 8903 audio analyzer owners?
  188. xL508/6KW6/17KW6
  189. 6C45 phono input only?
  190. Initial Thoughts for "Mr. Piggy" SE Amp w/Screen Driven 6P45S
  191. Switch box using VR glow tubes
  192. Ideas for a simple 6080/6AS7 Push-Pull amplifier
  193. TJ 845 Tubes
  194. Looking for a web tutorial on basic calculations
  195. Berman linestage- do I reference heaters or not?!
  196. calculating gain
  197. Simple EL84 amp...
  198. Tube Direct Box - Got design?
  199. Raphaelite Audio Transformers &amp; Sino Tube Amplifier Kits - What's your experience ?
  200. S-5 Electronics K-16LS & 6V6 Substitution
  201. how to calculate current requirement
  202. Stancor Transformer Data Sheet Needed
  203. 6BL7 replecement
  204. Toroid PT question
  205. New SET Amp
  206. What do you guys think..
  207. Output Stage in MJ Question
  208. Input voltage on an integrated tube amp
  209. 6sf5 = 1/2 12ax7?
  210. Observations of amplifier sound
  211. Sovtek KT88
  212. 24 or 24a as driver in 2 stage..?
  213. Too high transformator voltages...
  214. This power supply ok?
  215. 300B valves
  216. Modulation transformer for a driver transformer?
  217. Is 6V DC too low for heater filament?
  218. mundorff 0.47 silver in oil
  219. need manual for heathkit sp2
  220. Interresting Quiz. Which tube is this?
  221. el84 burn in time ?
  222. Tube Amp Compensation Q
  223. Quad II Advice
  224. Bias problem- 1 Socket shows extremely low bias!
  225. ECC88 vs E88CC
  226. Finally, back to my Simple SE project
  227. can trafo laminations rest on chassis?
  228. Ping Poindexter - 6SN7 Moebius Linestage Question
  229. More information wanted on this Phase Splitter Circuit
  230. Converting tube tester to Mutual Conductance
  231. 6UA4-GTA Question
  232. oscilloscope turned guitar amp?
  233. LED cathode bias - how to pick LED?
  234. preamp question
  235. Hickok tube tester calibration help needed
  236. Watch this !
  237. any Welborne Labs Ultrapath owners ?
  238. McIntosh transformer turns ratio
  239. 12E1 & S11E12 as a KT88 substitution
  240. Dynaco ST-70 Triode Conversion Techniques
  241. Larry Moore power supply
  242. SE to Balanced tube preamp idea
  243. Help on Cascode DN2540 CCS
  244. Kt88 Pp
  245. What was the diy world like before the internet?
  246. Updated my website
  247. Marshall AVT 50 preamp gain/distortion increase
  248. Interstage question in 6ac5G design
  249. Using a powered sub with my tube amp
  250. 807pp suggestions and guidance please

Content Relevant URLs by vBSEO 3.3.2