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. New KT77 Tubes by JJ
  2. 60HL5?
  3. Standby switch
  4. Problems With Simple Gounded Cathode Gain Stage
  5. srpp 6c33c
  6. Mullard 5-20/Maplin 4-20 modification to NON-Ultra Linear mode????
  7. Anyone in gta know their tubes?
  8. 801 low power SE amp
  9. superalloy ( 78% nickel/2%cobalt) EI-66 with Furukawa ultimate wire.
  10. OPT resistance for EL84 PP Class A
  11. Whats in this amplifier?
  12. Whose logo?
  13. pentode phase splitter
  14. Is this EL84M UL PP OK?
  15. Tube preamp question...also, chassis layout
  16. Quad II Mods/Tweeks
  17. Trying to recreate a Fisher SA-16
  18. CCS, how it actually works?
  19. 400V CRC PS, what do I do with it?
  20. Does anyone has Milbert BAM230 tube car power amplifier
  21. Valve sockets
  22. Can I use 12AT7?
  23. Music Reference RM5 mkIII
  24. Help: Sun Audio Kits where from? EIFL, ELEX, Sun Audio?
  25. Looking for a link on power supply design
  26. Is feedback required for UL EL84PP?
  27. Someone working on an insane tube project?
  28. Load line frustration
  29. Is 12B4/A good for differential pair?
  30. Heretical Unity Gain line stage PLUS a little gain ?
  31. tube vibration
  32. Small temp voltage on phono input-problem?
  33. What's it all about?
  34. IXYS GaAs Schottky Diodes.
  35. Maplin 4-20
  36. Line preamp using 2 ECC88 per channel
  37. What to use as a nice amp case?
  38. Signal Tube Longevity ?!?
  39. HK 250 power amp tube amp schematic
  40. Need help with connecting OPT.
  41. 6SL7 driving SE EL34 ?
  42. power supply tranny
  43. Output Transformer Background
  44. Schematic
  45. no dc passing the opt
  46. New preamp schematics
  47. Transformer ID & Specs Sheet Help
  48. I Know Some Tube Flavors Are Worth More Than Others...
  49. Why hybrid CCS?
  50. Best cap to cathode tube bypass is ..
  51. Cheap el84 se
  52. Bridge rectifier with capacitors???
  53. 4 volt (dc?) heater from 6.3v
  54. Does anyone recognise this valve amp
  55. Which 6SN7 preamp should I build?
  56. Help on upgrading my Tube Preamp
  57. looking for a non-copyrighted preamp schematic
  58. Problems with cathodyne
  59. more gain needed -> how?
  60. OT: Tribute to Kondo-San
  61. PCL82 SE Tube Amplifier Kit
  62. Rectifier voltage difference, Why?
  63. partial feedback stuff
  64. replace 5y3
  65. Sparking Tubes!
  66. Transformer End Bells
  67. DHT Ultrapath Linestage schematic help
  68. Who manufactured are these EL34's?
  69. Tubes and RoHS compliance?
  70. What do you think about this tube preamp?
  71. What's Ra?
  72. Screen grid resistors
  73. Miller compensation - pros/cons?
  74. G. Kaufman's 6GV8/ECL85 regulated psu
  75. 6CA4/EZ81 heater bias
  76. First stab with PSD for 6CK4 amp-what have I got here?
  77. 81 Rectifier
  78. using 40 VDC supply?
  79. Choke current
  80. Why two diodes per branch on a full wave rectifier?
  81. Alps attenuators
  82. Seeking quality PP pre/mono power project (long)
  83. Transformer location
  84. proper choke placement
  85. 6HE5 as output pentode?
  86. A possible good source for steel chassis
  87. Update on DIY 7591 PP bias cap issue!
  88. 832, can you go SE with these?
  89. PX25 SE without NFB
  90. Change my 8417's Quicksilvers to this?
  91. SE EL84 circuit for bi-amp setup?
  92. CLCLC PSU for 6P14P-EV PP
  93. Shielding a Power Tranny
  94. Unison Research Schema Needed
  95. My 2A3 schematic, comments please.
  96. What happend to the PHOTO GALLERY ?
  97. Valve pre-amp maintenance and purchase
  98. sound of 45 v. 205d v. 2a3 v. 300b for headphones
  99. TPAD Devices Kit
  100. Need Help. Anyone with Philips AG 9016??
  101. Question about input sensitivity?
  102. Any help on sth probably simple?
  103. few questions about my amp, pls come in
  104. 7591 Spice Model ?...Anyone ?... I'm Groveling Over Here !
  105. Need regulated solid state PSU
  106. EC31 - Any Datasheet...?
  107. comments on www.shinrock.com???
  108. need schematic reading help
  109. Sound from dummy load?
  110. Loftin-White
  111. RCA 151 'scope
  112. Coupling cap. values???
  113. stepped attenuator
  114. Ideas for input/driver stage of 300B amp
  115. Schematics for Bogen MXM-A Mixer?
  116. yet another which cap is best for the money question
  117. Lowering the value of the lead resistor
  118. power supply recommendation for EL84 amp
  119. Can ECC40 be used in a phono stage?
  120. Better current source than LM317 on a 12B4 line amp
  121. Bias and max current for my 7591 AB amp...
  122. Making sense of the Aikido calculations?
  123. Computer Grade Capacitors
  124. Pls recommend a power amp to build?
  125. Advice about this 45 amp
  126. Any definitive infor on R-C parafeed out there?
  127. 6AS7 as rectifier tube?
  128. Pre Amps
  129. 12 volt preamp
  130. JE LAB's 2001 2A3 & Preamp???
  131. 12AX7WA
  132. found DIY amp - now what?
  133. Magic Eye spectrum analyzer
  134. Tube Companies
  135. B+ from GZ34 Heater CT ?
  136. Unknown mA on Gardners mains transformer
  137. PSU Question
  138. how to mount rca jacks and volume control in wood enclosure?
  139. Giaime's last nightmare - aka RIAA faceoff
  140. 5687 dc 5687 tube amp need help
  141. Input cap needed
  142. 6BQ5\EL84 line amp
  143. Capacitor Values Why so high? & What can I do?
  144. Bias pot question
  145. What I have: 4 Tubes. What I need...
  146. let me fix this bias
  147. A small no-fuss pentode/pentode SE amp
  148. Bleeder Resistor Placement
  149. Modifying Heathkit AA 151
  150. Interstage transformer for PI.
  151. mono center channel out to stereo
  152. Audio Research REF 2 MkII
  153. 717a plate volts
  154. valve preamp criticisms?
  155. LOT of tubes. what can I do?
  156. substitution for 7355
  157. KT88 heaters
  158. Software for drawing tube schematics?
  159. New books posted
  160. Compound bias
  161. Tube Oscillation or Microphonic Question
  162. WTB:OT for el 34 35 watt tube amplifier
  163. Questions on 6H30 simple PF?
  164. "Super Davohm" 1w .1% wirewound
  165. Heathkit AA-100
  166. 6159 for SE Power amp
  167. Do SMPS have a home at high end audio?
  168. Kofi Annan in: "300beee!" or "Kofi Gets a Toy"
  169. cathode capacitance on anode follower
  170. looking for a building shematic for ECLL800
  171. Iron learning.
  172. Tube Amp - Crackling Sound on Left Channel
  173. Pspice preamp simulation
  174. Supply voltage for 12v6 12B4 heaters
  175. New project and my first circuit...
  176. Choke coupled phase invertor
  177. long cable line drive
  178. What To Do?
  179. Simple Method To Measure Source Resistance?
  180. is this true????
  181. query on the PSU of a preamp
  182. Meshplate Help needed
  183. 6072 tube preamplifier.
  184. hybrid rectifiers and PIV rating
  185. transformerless amp help plz ...
  186. Help me build a tube MIC preamp plz
  187. chinese 845 amp blowing fuses
  188. Question about PIV rating of diodes...
  189. Triode strapped heptode?
  190. The Fisher 500C/800C Challenge (long..dialup warning)
  191. 5 wire output transformer
  192. Orcad & tube library
  193. Wall Wart Tube Power
  194. How can I lower B+ of power supply?
  195. How do you put a CCS under a diff. pair of DHTs???
  196. Just need to make sure.
  197. restoring a marantz 7c
  198. What is Simplest and Best 6L6 PP circuit? (PK)
  199. Good DIY Transformer Article (in Thai)
  200. Tube Swapping Question
  201. Toroid choke question
  202. Pentode CCS for parafeed SEP??
  203. subminiature tube suggestion
  204. MQ431 or Triode's DynaClone
  205. Conrad Johnson MV 45 schematic help
  206. signal wiring
  207. NEW B Need Help on Output Tx Problem
  208. center tap of heater winding
  209. Dynaco Mk IV question
  210. Does this tube amp has enough cap
  211. Acrosound TO-330 output transformers
  212. PP transformer for SE use
  213. Holiday Time!
  214. another beginers first amp thread!
  215. Western Electric 374A
  216. Musen to Jikken 03/1997
  217. Please help me make a schematic
  218. Tips for Hakko 936-12
  219. AC or DC for 300b Heaters
  220. Two irons for PSU
  221. Which DHT for Line stage?
  222. Pye Mozart 10 amplifier
  223. I need a simple schematic with 6J1P tubes
  224. First tube project. Need advice.
  225. Sound Valves M-40 assistance
  226. Has anyone been keeping up on the 'New Sensor' Controversy?
  227. quad esl output transformer.
  228. penta labs?
  229. transformer links
  230. EL84 auto split
  231. TOPWARD MODEL 605 operation manual & Schematic
  232. PREdator, Diff/CF linestage.
  233. Triode Electronics ??
  234. Full Bridge Amp?
  235. Tube literature on pentodes + transformers
  236. so, who made General Motor's "AUTRONIC EYE" tubes?
  237. 6DJ8 Linestage
  238. Annyone seen this problem?
  239. psu to heater on 4 el34 tubes???
  240. 6C33C-B, Reliability--A theory........
  241. Sun Audio preamps
  242. Anyone Use A Harmon/Kardon XT-2 Xformer For MC ?
  243. Carver Phono
  244. Help With 3 Channel Magnavox
  245. simulation software
  246. trickle charge psu?
  247. tube filter
  248. Holiday S-5 K-12G
  249. Couple of (newbie) tube questions...
  250. valve buffer gainclone

Content Relevant URLs by vBSEO 3.3.2