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

  1. What happens when Output transformer max voltage (slightly) exceeded?
  2. what type is the best?
  3. Kiwame carbon resistors
  4. Rocker Switch Wiring
  5. RH6550
  6. Diodes for Marantz 8B
  7. Diodes for Marantz 8B
  8. Telefunken 2430 Opus Resistor Burnout
  9. yaqin 100b with 2 different kt88 valves 2 are Genelex Gold Lion and 2 are Svetlena wi
  10. Conrad Johnson MV40 copy and Fisher OP's
  11. Are EF86 Tubes inherently microphonic?
  12. Counterpoint SA-1000 Hum in left channel Pinging Anatech!
  13. Need a rectifier tube...
  14. Looking for Harman Kardon Allegro A-10 Schematic or PhotoFact.
  15. How much spl can a triode take?
  16. Octal CCDA kit - help needed!
  17. Mod input of 6AU6/6AQ5 amp for iPod
  18. Put a tube on your PC just for fun..
  19. ST35 Cathode Feedback
  20. Series Shunt tube regulator
  21. Help ID this tube ^&$**@# lettering!
  22. Adding a db VU meter to an existing tube mic pre
  23. Quad 22 interstage cap?
  24. 4P1L triode PP (40W!!?)
  25. KT88 shootout vintage vs new vs 90
  26. Help needed to identify this british made Amp
  27. PSU II Question
  28. Quality tube buffer with ECC83
  29. K12g Amp Question
  30. output transfo problem
  31. Pair of Fisher CA-40 Oddballs
  32. Model 601 tube amp.
  33. Model 601 Tube amp
  34. First power amp build. Is this normal??
  35. Compactronized 6146
  36. Preamp and inverter on B7G base tubes circuit.
  37. Advice and Suggestions on Amp designs
  38. Help who tube buffer x10-d
  39. EL803S-6CW5 / EL86 amp design check (schematic attached)
  40. amp buzz in one channel on inrush / power on
  41. SE 8-10W monoblock build help
  42. GlassWare Tube CAD
  43. SMD Parts and the DIYer
  44. 6CW5 / EL86 operating point
  45. RH84 power output
  46. 6n6p-ir
  47. Transformer bubbling
  48. Crackling noise.... pls help on Pre-amp
  49. RH84 amp. Plate is 300V. What voltage...
  50. Amplificator Class A 2 X EL504
  51. Help in testing 12ax7 and 7869 tubes
  52. Micro-Cap Tubes Parameters question
  53. Cathode Bypass Capacitor
  54. NOOB ALERT! sooo omany questions.....
  55. IS THIS A REAL E810F ???
  56. Chassis design question / cooling of small signal valves
  57. 5 leads pp output transformer
  58. Vote and Comment: SRPP vs. Aikido vs. Grounded Grid
  59. NEED ADVICE ON THIS SCHEMATIC AND WILL IT WOFK
  60. Help Identifying a Console Pull Amplifier
  61. sunaudio 2A3 circuit...is it good for newbie?
  62. KT120: When does it starts to sing ?
  63. Simple Time Delay (no more excuses for not having one)
  64. Cary SLP-05
  65. 6SN7 Grounded Grid
  66. input selector switch replacement help
  67. help needed with transformer wiring
  68. Tube Schematic Drawig Packages
  69. 12AU7 - 5V4G easy amplifier
  70. Glassware CCA 9-pin PDF
  71. Replacement for the tube 6922 (ECC88)?
  72. Which probes for my first scope?
  73. PP CATHODE BIAS WITH "CCS"
  74. current output tube amplifier
  75. Tube amp for a small room (newbie-like)
  76. What is this old thing from1929?
  77. Arduino cathode current HT etc
  78. Bizzare Output Transformer Connectivity...
  79. OPT to KT88?
  80. Help needed on identifing tube
  81. Amplifier circuit from tube radio
  82. Amplifier circuit from tube radio
  83. Using Valves Library in EAGLE CAD
  84. Biggest noval power pentode?
  85. Akita 12V preamp thoughts
  86. Help, what is this (Marconi 6204) ?
  87. Anyone try DHT 33 or 1Q5 Pentodes wired as Triode?
  88. Would this be a good buy?
  89. Looking for a complete DIY Tube amp
  90. Schematic by TS LIM Pre-amp
  91. Fisher Model 100 'AZ' Mono Amp Rebuild w/ Oscillations
  92. Measuring inductance
  93. Leak stereo 20
  94. Gain and gm of a QQE03/20 anyone ??
  95. Power supply options for tube amplifiers.
  96. CCS question mA
  97. Help wanted with testing and finetuning.
  98. YAQIN VK2100 pre amp
  99. Identify record player and valve
  100. AC Line Filter
  101. blue flash inside 5Y3GT
  102. Heater-Cathode Leakage
  103. Old Tube Kit
  104. Point to Point SET KT88/6550 Build
  105. D3a - MOSFET HYBRID CIRCLOTRON
  106. Aikido CCDA
  107. output impedance
  108. Bizzaro fix for hum problem needs explanation! Pretty Please
  109. Bizzaro fix for hum problem needs explanation! Pretty Please
  110. Questions regarding first build - K-502
  111. Good tube tech in Brooklyn NYC?
  112. Looking for LTspice tube models
  113. Audio Research SP15 : faulty phono stage
  114. Spark 810 looking for the diagram
  115. HP 8903B Question ?
  116. 1955 Hammond Organ Tube Amp
  117. Suggestions Please
  118. Croft Series 4 PL519 regulator
  119. Rectifier ID
  120. Adding headphone output to Darling amp
  121. CLC vs CLCLC Filter Power Supply
  122. Where to get Vacuum Tube Valley magazine?
  123. Magnavox 8802 HELP!!!
  124. Vaa for KT120
  125. Tubes in a Home Theater?
  126. Yaqin mc 10l tube risers?
  127. Wiring an LED strip into an amp?
  128. Need a bit more power :)
  129. yaqin 100b kt88-98 bulb blown and smoking coming from the amp
  130. Amp. 2x5W RV12 P2000driver RL12 P10 final
  131. Layout challange: Dual Maggie AMP148 based.
  132. Replacement PT question
  133. Real Telefunken E88CC?
  134. Any audio differences for EL-84 P-P OPT?
  135. Need help identifying this amplifier.
  136. Can anyone identify this valve / tube?
  137. Pentode-like Triodes
  138. Telefunken EL156 SE experience
  139. 33:1 opt for 5:1 use?
  140. Siemens B30C600 selenium bridge rectifier
  141. ECC81 mu-follower problem
  142. Audio Note M7 line stage preaamp!
  143. Should I upgrade considering.....
  144. Using Wards SE EL84 Transformers for Decware Zenkit1
  145. Parts Box 300b
  146. TO-9105-1 Triodeelectronics output transformer
  147. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  148. What is your comment about akido linestage?
  149. Driving an EL34 amp without driver stage ?
  150. Mystery Telefunken T9 amp
  151. Improving preamp's bass response.
  152. EZ150
  153. Need help identifying baldwin tube amp
  154. 45 amp with 6N7
  155. Selecting 5881's question
  156. Schematic with ECC88
  157. PP Output Transformers
  158. Gas Tube Question (CK1006 Rectifier)
  159. Art Audio Quintet MK1 EL34 PP resistor value
  160. The Midlife Crisis - My 833C Amp Build
  161. Tube amp Building Compitition Interest check
  162. Found myself a Magnavox 9302-00
  163. DIY Stereo Amp 15-50wpc
  164. Gray Research AM-50
  165. Preamp Grounding and Hum
  166. What to do with AA-100 output iron
  167. Flat screen t.v. and tube amps?
  168. 12AX7 Plate Current vs. HT Voltage
  169. Need help with Phono preamp build with microcontroller relay switching
  170. CCS fixed bias
  171. Gerber file help!!!!!!!
  172. Finally real inductance of a grid resistor...
  173. 12B4 vs. 12B4A
  174. Simple hybrid amplifier
  175. VTL Stereo 50
  176. Distributed volume pot
  177. DHT fixed bias schematic
  178. Wiring a power transformer
  179. What can I do with these tubes?
  180. RCA SP-20 circuit question.
  181. Magnavox Model 1ST525A
  182. LD91 signature power transformer wires Help?
  183. Effect of Regulated DC Filament Supply
  184. D3a-300b amp help!
  185. Need Schematic for this GE Console fast.
  186. Sound experiences 6SN7
  187. EL152 maximum operating settings?
  188. OMG just scored a huge lot of Nos/Nib tube lot for $20
  189. Help with DN2540 CCS design
  190. Strange problem with Caps not blocking DC
  191. Help and suggestions for My Phono and pre amp
  192. PCB and transformer placing and shielding
  193. MC-40 bias current?
  194. Gyrator on ccs-tailed LTP?
  195. capacitor polarity on a VM 20050 amp
  196. Choke? Where to begin?
  197. H11F1 Switching in tube circuits
  198. cooling traditional E-core iron transformers
  199. New vacuum-tube preamp-project!
  200. NABU TuneLabSE Buildup
  201. I just inherited a TON of tubes and tube amp components.
  202. Filament Transformer Question ?
  203. Low gain in Heathkit SA-2 phonostage
  204. speakers for leak tl12+
  205. LM3875 + Broskie Cathode Follower. (PICS)
  206. Has anyone built Andrea Ciuffolis Phono End ?
  207. tube substitute
  208. Motorcapacitors in high volt. power supplies?
  209. Troughline, Stereo 20, Technics 1200.Unhappy!
  210. Troughline, Stereo 20, Technics 1200.Unhappy!
  211. Volume potentiometer: the best way to do it...
  212. KT120 "triode" and Hammond 1650N
  213. Tubecad SE Amp Cad
  214. 5702wb
  215. Does anyone know of a company that makes circular risers for tubes?
  216. Negative feedback to differential pair driver
  217. 6L6 UL Power
  218. Bench Power Supply: What to look for ? Which one to get ?
  219. Bevois Valley EL84 PP - distortion in one channel
  220. good by til next winter
  221. PSUD Questions
  222. Power Transformer Wiring Question ?
  223. Fisher 500C C82/C84 ceramic capacitor function
  224. Tubes to first taker
  225. Neutral wired to chassis, how to add a 3-prong cord?
  226. Heater Transformer - too much voltage
  227. Capacitor value
  228. WD KT88
  229. Ultimate spud amp - any ideas ?
  230. Please Critique My Grounding Scheme
  231. negative voltage drop across a diode
  232. 1.5K 200W output transformers? What tubes?
  233. 50 Type Tube
  234. "12SR7 Starving Student" plays extremly quiet
  235. questions about some sim software
  236. Drive
  237. 4xKT88 into Hammond 1650T, what am I missing?
  238. double mono SE
  239. Two electrolytic cap selection questions
  240. Could This Be the Future of Vacuum Tubes?
  241. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  242. Rydel's triode model coefficients
  243. 2E26 Options
  244. Loud Popping Dynaco ST-70
  245. Are these EL34's good?
  246. Amp schematic for Sovtek/Svetlana tubes
  247. KT66 power tube amplifier
  248. 6П3С Plate Voltage
  249. Help choosing which Amplifier to build
  250. need help choosing between two amp schems

Content Relevant URLs by vBSEO 3.3.2