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. Crack the Code Amp build 1000 Watt Tube Amplifier
  2. 12E1 in fixed bias - too much current!
  3. CD-DVD player vs Notebook-usb soundcard sensitivity issue
  4. photo of Knight KP-70 preamplifier for missing component
  5. heater wear sign?
  6. Musical Fidelty X-10D Clone
  7. 815 amp
  8. Jorgen Schou 31,5 OT connection
  9. Is there such a thing....
  10. Tube Rectifiers and Common Grounds
  11. vt4c.com copper tube socket mounts
  12. 1 Ohm Tap Output tranformers?
  13. Voltage Specs For Heaters-Is 2.4V Good Enough?
  14. Aikido with 5842
  15. Luxman MQ70
  16. Valve pre-amp schematic help needed
  17. valves' world - tossie Japan
  18. 211 amp , recognize the circuit?
  19. Tube Preamp: Remedy For Digital Glare?
  20. Tubelab SSE without tube rectifier
  21. Counterpoint 7A
  22. Low Z Out Dual Triode
  23. Push Pull circuit - controlling sensitivity
  24. Moto 3 channel to Maggy 175
  25. PMillett Landfall heatsink
  26. lower the gain
  27. KT88?
  28. Sphinx Project Fourteen help wanted
  29. will this work and looking for suggestions
  30. Squeal on shutdown
  31. Newbie to SRPP and Tubes , 1 question.
  32. Question about interconnect transformers
  33. another toy - el84 PP class A
  34. Problem with biasing - no voltage drop on a cathode resistor
  35. EL84 PP current fluctuating
  36. Aikido Preamp Questions (again)
  37. Amp caused crack
  38. OPT performances
  39. Hammond 125ESE in 2A3 SE : better substitutions ?
  40. Headphone Impedance and headphone amplifier
  41. Could this tube be good for audio ?
  42. Output Transformer for SE / headphone amp
  43. pioneer sm-b200a
  44. 12AT7 Tubes ?
  45. Gold Lion kt77 bias help?
  46. Need some bias control help
  47. Lafayette LA-224a/b modernization?
  48. Need help completing vintage 6L6 amp
  49. Direct Russian equivilent for 5687, is there one ?
  50. Attenuation for 0.5dBs
  51. Dynaco ST-120 Impedance Concern Martin Logan
  52. Some 1626 Darling Amp Questions
  53. Choosing a SE 2A3 shematic : hum as a criteria...
  54. Rectifier question, voltage across diode.
  55. Angela simple 2A3
  56. Cathode follower - resistor calculations/software
  57. Desperately Seeking OPT Covers
  58. Modified Tube Cricket Amp Questions
  59. Best sounding DIY amp kits for 45, 2A3 or 300B
  60. Pentode's screen voltage/current
  61. KT88 Cathode Current Runaway/Oscillations?
  62. O'netics, Electra Print: anyone have both?
  63. How to maximize power transfer in tube circuit designs, damping is not the question!
  64. Inexpensive 2.5k primary SET OPT with 90mA+ DC bias rating?
  65. 4p1L Ultralinear
  66. RH300B 12W with 1% THD
  67. This is where the adventure begins
  68. 12AU7 pre rebuild suggestions
  69. Subwoofer Channel on Tube Amp
  70. Changing input tube from 12ax7 to 6AU6A on OTL project
  71. Yaqin MC5881a
  72. Humming Sound from tube amp
  73. Level Five 2A3 SE schematic : opinions ?
  74. My screwup = free PCBs...
  75. New stuff on the website: A2 buffer, isolated current sensor
  76. 12.6vDC Heaters, looking for a shortcut
  77. Fisher 80-AZ bias milliamps?
  78. Can shed some light on this EL 34 schematic diagram
  79. Solid State Rectifier in Dynaco Tube Amp
  80. Big chassis designs!
  81. 12ax7 LP
  82. plitron output w/ cfb usage ideas
  83. 390 ohm should have been 390k ohm
  84. Advice sought re what tube power amp
  85. EL34 SED Winged C Black Prints: original??
  86. OPTx from Ogonowski
  87. Aikido cathode follower (ACF) with 12au7
  88. Ampeg vt60 tri ax (did it really exist?)
  89. SEP EL-34 to 6L6GC?
  90. Volume Pot Spec
  91. My Tube Pre-Amp Picking up an AM radio station?
  92. Philips 6SN7 GTA & GTB
  93. ST-120 Problem With Rectifier Tube
  94. New Yaqin VK-2100
  95. Electronic parts and sub-zero temperature
  96. Bendix 6384 as EL34: Experience anyone?
  97. Audioresearch LS2B schematic needed
  98. input noise - too simple - but need explaination
  99. Plate voltage with/without tube (for fine tune bias adjustemnt)
  100. Using trimmers / potentiometers to adjust tube operating points
  101. KT88 SED winged C tolerance tall for quad
  102. Power Transformer Tolerances
  103. 12E1 Ultra Linear
  104. Comparison KT150 versus KT120
  105. 6sn7: GT GTA GTB sono differences for HIFI
  106. Audio Research LS5 Power Supply Problem
  107. Vintage grundig vs. new Yaqin. Advice?
  108. 5AR4 PSU
  109. What tube is this ?
  110. Need Schematic
  111. Budget PP Iron: Transcendar or Edcor?
  112. Yaqin MC-10L buzz
  113. Transformer buzzing when filament section is loaded
  114. Grid Stopper v Grid Leak on el84
  115. 2.5V Heater Tranformer-Best to Use One Per Channel?
  116. Amp: KT88 push-pull shunt feedback output via p-channel fet
  117. My biggest fear....
  118. I've made an awful mess...
  119. Any input for a tube noob's first attempt? Flea Watt 12b4, 6dj8, low B+
  120. HV scope use
  121. Kolster-Brandes er30
  122. Buzz that goes away when input grounded.
  123. Hovland HP-100 tube replacement
  124. Dynaco ST-120 Turn On Pop or Problem
  125. Grounding two channel preamp sharing a psu.
  126. Convert hybrid amp to pure tube output?
  127. Please Help me with this tubes
  128. resistor maximum voltage rating
  129. 211- 6e5p full amp. The first setps
  130. E810F and general pentodes design question
  131. Pop goes the bias cap.
  132. High Power Single Ended Triode, Design
  133. Yaqin MS-6V6 vs. Markhill MS-6V6
  134. Schematic please: Luxman MQ-70?
  135. Aikido tube preamp with Tortuga LDR volume control
  136. Type 37 tube preamp
  137. Figuring out a KT88 datasheet?
  138. Power supply 260V for tube preamp
  139. Aikido Tube with Tortuga volume control project
  140. Adding a pre out to amp
  141. One or two ECC82 for two channels (crosstalk)!
  142. Red Pilot (240)
  143. 77:1 Output Transformer Question
  144. Power transformer recommendation Kt88 SE and JE labs Riaa
  145. Tube output power for OPT calculation
  146. 6sn7 tube anode folower question?????
  147. Goldox 9300
  148. good quality/sounding preamp advice
  149. PL84 schematic question.
  150. YouTube Video: 12AX7 comparisons.
  151. How many volts ???
  152. Greetings all/ (newbie) Need Advice!
  153. Psud and Single Ended Amplifier
  154. Socket Combiniations
  155. From Potentiometer to Stepped Attenuator
  156. No need for bleed resistors on Fisher 90-T
  157. Sophia 300B+ carbon
  158. Capacitor Temperature
  159. PL519 amp SE
  160. C3g Headphone design - will this work?
  161. Luxman 2A3 amp SE
  162. Capacitor on Aikido Power Supply Sampling Circuit
  163. Well, what have I done now?
  164. Aikido CF cathode resistor?
  165. D3A - 6P45S/El519 SE "The staircase" my first h-end amplifier.
  166. SET Cathode Biased vs. Fixed Bias?
  167. JAN6418 pre-amp advise
  168. SOHA II amp tripping
  169. 6JN6 LTspice model?
  170. unusual output transformers, what are they for?
  171. Cheap power amp kit with 6N2 + 6P3
  172. KT88 AMP I'm not sure about power supply
  173. buzz from tubes
  174. Good Power Supply??
  175. HK guitar amp - help with repair
  176. Audio Research SP6C
  177. Junk Audio Project (pics)
  178. SE SV83 Paralled Tube Amplifer
  179. Hum in SVP preamp circuit
  180. Advice/tips on tube preamplifier wanted
  181. Transformer Windfall. Now what?
  182. I am being cautious - need to install a ground plug
  183. My first scratch build (6AQ5 SE)....
  184. Pop, Pop, Pop, Pop, Pop
  185. what is this valve? and what is it for??
  186. Lazarus cascade basic preamp
  187. Seperate Power Supply Chassis and Grounding
  188. How To Solder Tips and Tricks
  189. Another CD player tube mod, TDA1541 with transformers and triode cathode followers
  190. PCL86 - Worth a try?
  191. Audio use 3D6/1299 ?
  192. How HOT should a LM317 get?
  193. KT88 amp questions
  194. Restoring a Motorola HS-1048A amp
  195. Please look at this schematic and tells me what have went wrong
  196. Lacking bass response after re-cap
  197. Generate a negative bias voltage?
  198. hammond 369ex instead of 269ex
  199. Recapped a pair of monoblocks
  200. Top Secret!
  201. Toggle or Rotary Switch for Phono Inputs
  202. Flexible tube (or SS) electronic XO
  203. LAVATORY - Lamp Valve Transistor Hybrid (will this work?)
  204. Transformer revers use question
  205. Fixed bias, cathode feedback?
  206. spudnik, spudMiG ?
  207. I need the KT120 base dimensions
  208. Need help with chassis layout.
  209. tube amp ID ?
  210. GU50 filaments voltage!
  211. Does anybody have an RCA RS171 Schematic
  212. Opinions wanted: Low Z SE power supplies
  213. DC heaters, best way to bias ?
  214. Ignition coil as SE OPT
  215. Opt color code identification (Onetics)
  216. Drawback to Larger Capacity Output Transformer Than Required?
  217. Send me some pictures of your amps
  218. leak stereo 60
  219. B2 Spice V5.0
  220. Mains Fuse and Switch Best Practice
  221. Identify these vintage tube amp rivets
  222. RCA ORTHOPHONIC LMI-32216A manual copy needed
  223. Question on strange 6l6 schematic symbols
  224. Resistor value?
  225. Paper / plastic hybrid capacitor
  226. ST70 chassis polishing
  227. Octal to RCA
  228. KT120 plate load for 150+watts
  229. Need a copy of Aikido 5687 manual pdf
  230. Nutshell Raven Headphone amp with balanced I/O
  231. Bartolucci: beware of him !!!
  232. Finding plate resistance
  233. Pleides Tube only headphone amp
  234. I think I know what I want (seasoned advice)
  235. CCS filament supply vs inductors for DHT
  236. Cap outer foil low impedance help...
  237. Distorted low end SE micro amp
  238. LM3886 + ECC82/12AU7
  239. My LCR phono with HUM....
  240. Winter 2A3 SET project.
  241. 6BQ5 pp with LM317 ccs
  242. maratz 7 clone
  243. Music Angel pre-amplifier - few modifications
  244. Transformer Questions (1st Amp Project)
  245. Morgan Jones and PS Bypass Caps
  246. Ruby Tuby at 24V?
  247. Budget Iron for Low-Power SET
  248. Output transformer mounting questions
  249. 3c24 preamp?
  250. Newb Q - JE Simple 2A3 as Monoblocks

Content Relevant URLs by vBSEO 3.3.2