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

  1. PP EL84 Build Questions (Bevois Valley)
  2. Tube line stage output impedance
  3. volume between gain stages
  4. Dyna ST70 PWR Tranny 6.3V Crnt Spec?
  5. Next Project - Darling Amplifier or 45
  6. tube magazines
  7. PSU choke help please
  8. PCB Trace properties for PP tube amplifier ( 12AQ5, 6v6 etc)
  9. TubelabSE phase
  10. EML 300B XLS and Mesh comparison
  11. UL - triode switch
  12. Spud anyone?
  13. Nooo! Almost have this amp built!
  14. Need help - Old cap can ID
  15. 16SL7+6SN7 Aikido
  16. 1600Hz Transformer?
  17. Anyone have a Bogen MX 60 Schematic they can post
  18. mc100b burned up
  19. DC heating, parallel diodes
  20. Identify Amperex Tube?
  21. Which speaker tap when going from UL to triode
  22. Tube wont bias...
  23. DIY stepped attenuator
  24. TV-7/DU KT88 Settings?
  25. Filmosound - Tone Knob - Tertiaries
  26. Hybrid Amp, Tube+MOS FET SE
  27. 3.1 integrated possible?
  28. Plate choke material, why to use amorphous core?
  29. Anything obviously wrong with my mic pre amp ?
  30. K-502 or Yamaha RX-V361 for Klipsch F-1?
  31. Help diagnosing phase-splitter
  32. question about Bruce's GGP preamp
  33. Rickenbacher amp HELP!!!
  34. interpreting max. values listed in datasheet
  35. zenith mlt 15 console record player problem
  36. ORIENTED or Not ORIENTED cores for OPT
  37. Audio Research SP-3-A-1 modified.........
  38. Tube heaters in series.
  39. Output transformer listening impressions?
  40. Tube buffer 6H6P after a DAC
  41. S-5 K16LS in enclosure - Pics
  42. Time to mourn the death of Broskie's Tube CAD blog?
  43. 6N6P preamp
  44. our Preamplifier using 2J27S tubes
  45. dc filament design question
  46. 6AV6A for meter driver
  47. AC wiring heaters, A or B ?
  48. Aikido preamp muting
  49. Help! New Yaoin MC-100B with intermittent crackling noise from speakers
  50. hummming YAHA
  51. leave a variac on all the time!
  52. More triodes
  53. Full Wave Rectifier
  54. Blowing B+ fuse
  55. PSRR of CF w/ CCS Sink
  56. MENG Series "EL34B" Integrated Amplifier
  57. Concertina Parafeed, or How to mess with OldEurope's mind...
  58. Phono stage success!
  59. A few pretty pictures and an ugly picture
  60. Rectifier with slow start up?
  61. Calibrating an emission tester
  62. What is this?
  63. 4XKT88 drive
  64. EL84 driven 2a3
  65. need suggestions for "standarizing" tube gain stages
  66. How long until someone tries
  67. Hickok Photo History - hidden web gem!
  68. Common Audio Tubes in standard use
  69. tango input transformer NN-6
  70. Filmosound dual pot
  71. Hi power Moskido with A/B output Bias
  72. how easy to make tube amp?
  73. metal film resistors or carbon?
  74. Quad II tubes replacement
  75. Sirius & FM
  76. Can someone look at a Counterpoint SA7 for me?
  77. The Wintersweet High-Vividity Project
  78. loftin white 801 amp
  79. Pics of unique design of amp chassis?
  80. Heathkit AA-32 modifications / upgrades
  81. Tango XE-20S Specification
  82. Question about Edcor output transformer
  83. SE EL84 output stage?
  84. New ST-70 Driver board from Blackburn Audio
  85. Transformer primary rating question
  86. Heathkit A7(c?) Rebuild
  87. Rewiring a socket to take 6GK6 instead of 6BQ5
  88. 317 CCS Question
  89. Active filter design software
  90. Larry Moore 10Y Squared
  91. Do you hear “pop” when you turn off your amp?
  92. Filmosound - Guitar - Ground
  93. Simple tube phono stage
  94. Tube phono amp repair/redesign help wanted
  95. Repairing a tape echo with tubes (Dynacord Echocord Super 62a)
  96. tube newbie needs guidance
  97. Interesting linestage optimizing ideas
  98. Powered up my Lafayette 224A for the first time!
  99. Hickok Upgrades
  100. Passive BP filter sim results
  101. 100mA heater tubes for phono
  102. Audiotester + M-audio - info + question
  103. Indestructible HV hybrid regulator!
  104. yet another modified 5-20 amplifier
  105. help with OT for 15 watt tube amp
  106. Power supply for 12SL7 phono preamp
  107. few questions
  108. mystery 5881
  109. does lower B+ cause scratchy distortion?
  110. SY please keep us updated about your site
  111. Cleveland Ohio members?
  112. Scope tricks for detecting rectifier/choke switching
  113. To choke or not to choke
  114. Tube rectified LC PS for 6SN7 Aikido - choke DCR question
  115. Convergent Audio Technology (CAT) SL-1 preamplifier
  116. Very low current CCS?
  117. Morgan Jones' E88CC Phono
  118. pse help, unity µ triode as a phase inverter
  119. variable capacitor volume control
  120. What to do with P-P transformer ?
  121. 837 tube for SE Amplifier
  122. calculating transformer current draw question
  123. glass audio 1995 "Single Ended Glory"
  124. Manual for Heathkit AA-121 Power Amp
  125. Low gain triode recommendation plz
  126. Tubelab PP question
  127. Output transformer impedance question
  128. Choke... The side makes difference?
  129. Tubelab...Why "sandy" SE amps?
  130. Fostex Meets Pentode I need some NFB
  131. Oddball Sweep tubes in PP
  132. Noob - where to start?
  133. big doubt: dynakit st35 VS diytube st35clone
  134. Compactron Output Tubes
  135. XPP amp
  136. Tubelab SE ... which 5AR4 ?
  137. Getting only 400 hours on Class A2 PP tube
  138. Pete Millett's 829B amp -> monoblocks
  139. 6JU8A Spec confusion
  140. post on amp design by a newbie
  141. (INDIA) ECC802S/EL84 build, hardware requirements
  142. 6gw8 /ECL86 El Cheapo modifications
  143. Danielak's 300B design
  144. 6080 @ 800µA Question ...
  145. Groundplane layout theory
  146. delay on for 83 mercury vapor
  147. Anyone tried "Weber Copper" SS rectifyers?
  148. Scored a bunch of tubes at HamCon
  149. AB2 Anyone else done similiar
  150. 6v6 pp amplifier
  151. Loud 60 cycle Hum from tube amp.
  152. Building a Preamp
  153. another Big One....:)
  154. JJ factory pictures ...
  155. Good enough CFs
  156. What's a good way to clean tubes w/o taking off the labeling?
  157. 6BX7 or 12B4A for small SE amp?
  158. Schematic collection posted by a kind soul...
  159. Dumb question, but...
  160. Zen Quad 22
  161. I'm baffled -- 6AK6 push-pull amp
  162. pin count question
  163. 1G3 Max Dissapation?
  164. Edcor Transformers
  165. 12EL6 preamp
  166. Request for EICO HF-20 experiences and ideas
  167. So would this work?
  168. A valve pre amp for my disco and electric guitar.
  169. Small-signal (or small power) pentode that can handle 400V (or more)?
  170. Are 6GM8's rare?
  171. How to lower mains voltage using resistors
  172. Music angel XD-SE EL34
  173. Potential project for some inherited transformers
  174. Car Tube Amp?
  175. Marantz 7 Preamp
  176. Euridice pramp but with 45
  177. Tubelab SE Parafeed Monoblocks (5 channel)
  178. Can 6AK6's take high voltages?
  179. Tube equal to one section of a 12AX7?
  180. HK 'Deuce front end on G2 drive output stage?
  181. Direct-coupled cathode/source follower driver in PP?
  182. CCS power supply loading..
  183. Photo Gallery -- Simple SE build
  184. Buying vintage good tubes
  185. current tube manufacturers and or brands
  186. PSU with TL783-question
  187. Hashimoto H-20-7U for 6v6 in triode SE..?
  188. Speakers impedance
  189. mesh plate el34 (supereTNT)
  190. Tagboard amps
  191. 807 single ended guitar amp
  192. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  193. 6CL6 vs. 12BY7A
  194. Suggestions for a good tube line amp
  195. 12el6
  196. High Squareness Ratio of a Transformer
  197. What causes a tube to crack?
  198. My 66 Fender bassman tube guitar amp is cutting out intermittently and is making a bl
  199. Ming Da MC-7R transformers for Quad 22 clone.
  200. SimpleSE and Switches
  201. Bias and distortion 6EM7
  202. Need ideas - 6L6GA & 6X5GT
  203. tube microphone preamp design ideas
  204. Firestone Air Chief
  205. Zenith Console find, amp suggestions?
  206. 5842 russian equiv 6S45P or 6C45PI ?
  207. bizarre or good topology idea?
  208. 12 EL6 car preamp
  209. Waxy substance leaking from vintage OPT
  210. Output transformer protection fuses
  211. 5670 SRPP DC coupled to 6S4A
  212. L as last filter element?
  213. Strong cigarette smell in a tube amp
  214. Gas coupling?
  215. Differences between nos Tesla E88CC?
  216. Harmonic parrot food?
  217. Modified 6V6 amp, 350 volt @ 250 K HZ output
  218. best current production el34
  219. Help for correct grounding a Dared VP-845
  220. two 6AL5s as a bridge rectifier
  221. JFET Switching on my tube amp
  222. Leak / Dynaco DIY
  223. S-5 tube amp kits
  224. I wanna build a CHEAP mono tube amp, need advice....
  225. 12ax7
  226. Testing for tube shorts
  227. KT66 alternatives in Quad II amps?
  228. FOR TUBE: 350V High Voltage Regulator
  229. what guideline to match pre and amp?
  230. New to list and 300B amp kits
  231. Krank 100w head w/ only 14v output
  232. Silvertone 1448 Output Transformer?
  233. Primary impedance output transformer
  234. isolation transformer
  235. Cloning transformers
  236. EAR509
  237. EL84 for Ipod and guitar
  238. Tubelab web site down, no more SimpleSE
  239. Schematics of potential interest
  240. super capacitor for dc heater
  241. Need a kit ??
  242. Edcor XSM10K/15K like intestage in tube SE ?
  243. Does anyone know of an LTSpice model for 12B4?
  244. where to order V-Cap ?
  245. Input Volume Pot
  246. Red Army Power-amp
  247. Cloning a HF-60
  248. Michaelson & Austin TVA-1 info
  249. analyze a circuit...quiescence current and R-Load
  250. how to calculate SE Coupling Cap Voltage ?

Content Relevant URLs by vBSEO 3.3.2