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 99 100 101 102 103 104 105 106

  1. Diodes on power supply output for voltage drop?
  2. Converting from single ended parafeed to differential
  3. micro-amp SE with 2,5k OPT+
  4. Unknown Tube Amp
  5. Aikido AC Heater Supply
  6. Help me find some odd looking rectifiers!
  7. So, you may have been wondering...(813 Content !)
  8. Just sharing my 26 experience last night...
  9. Simple 5842-45 SET Amp Design Idea
  10. Yamamoto teflon sockets
  11. new thread, 6BM8 PP build begins...
  12. KT88 Heater Current
  13. 150V plate output tubes
  14. Newbie need to help
  15. Help me please
  16. Elekit TU-870 help
  17. Looking for schematic of Audible Illusion Modulus 3A preamp
  18. Junker Box amp
  19. aikido hybrid with 5 A bias
  20. Shall we compile a list?
  21. drift in direct coupled tubes
  22. Hammond 2XX vs 3XX Power Tranny Questions
  23. Help with this transformer please...
  24. Capacitor upgrade in Paragon 12A
  25. Light bulbs as cathode resistors?
  26. Favorite Threads and Posts in "Tubes" Forum
  27. I need 12v DC- whats the best option?
  28. Beard P35 and Tubes Replacement
  29. Graphic 1/3 Octave Tube Equaliser
  30. GE "Dual Speaker" radio to Harmony H303 conversion : Help, please?
  31. Power Supply Design
  32. Gomes amp
  33. pignose g40v power transformer
  34. Grid battery biased SE output stages
  35. KT88 amp schematic/parts list
  36. Wire Wrap connections for point to point
  37. Aikido Tubes
  38. Recommended tubes for AI Modulus 3A, C-J MV55 and Moscode 300
  39. Schematic Question
  40. EL34 as triode?
  41. Linestage Questions
  42. Help! Building Jax's HFTA
  43. Gobs of AC on ISCO 494
  44. Change step up ratio of input transformer?
  45. LCR RIAA rebuild
  46. common mode choke question
  47. Choosing Choke
  48. Input impedance
  49. Hey Tubelab, Transformer Question
  50. Hybrid Rectifier Check Please !
  51. 1st tube project, tubalizer?
  52. 1st Time project - Report 1
  53. ED-8000 set amp
  54. Hitachi v-202 scope
  55. Cheap and nice looking SE OPT
  56. How much difference 0.22 vs 0.33 cap?
  57. Tubelab SimpleSE
  58. 813 final design?
  59. HPHV regulator, designed by Emile Sprenger
  60. Counterpoint tube amps
  61. SS or tube voltage amplifying stages in an amp with tube output?
  62. 24V Aikido --> 6GM8 with Buffer
  63. Motorboating in Dynaco ST-70
  64. Does such a tube exist?
  65. Noisy PSU?
  66. Bell & Howell amp
  67. Valve Amp with soild state front end
  68. Controlling transient response
  69. Transcendar Budget SE Transformers
  70. Opinion on New Sensor 6SN7GTB?
  71. Determining optimal OT turns ratio
  72. Splitting up the Power Amp
  73. Sowter 5113
  74. Cascoded 6N6P
  75. MachMat or Tentlabs Heater Supply for 300B
  76. Common mode filtering for heater supplies.
  77. Distortion.
  78. 83 rectifier peak repetitive current?
  79. 813 Project has begun !
  80. C3G PX25 DRD - Will it work
  81. 6J5 (Metal Tubes) ....something goes around inside
  82. common-mode chokes
  83. EL-34 and 100k pot
  84. Scott 299 (late) OPT's
  85. Tube magazines
  86. PP plate-choke?
  87. More Phase Splitting Questions
  88. Concertina sanity check
  89. Transformer Specs
  90. The Aikido or Moskido??
  91. KT88 PP suggestion
  92. Ultrapath line amp
  93. Gross loudspeaker cone movement when using tube amps.
  94. Pre-amp power iron advice??
  95. Class A 8417 Amp
  96. DHT output tubes and DC heating
  97. rock music and SE?
  98. Disadvantages of using Zobel and Series notch filter ?
  99. old days source
  100. Mu-follower vs common cathode w/- active load
  101. K40 or K42 Russian PIO: what would you use/recommend?
  102. CCS turning off prematurely?
  103. ESL amp again!
  104. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  105. Does anyone know the output transformer specs of the...
  106. SE EL84 project for my friend
  107. SE amplifier - How much power?
  108. what speakers do you use?
  109. A Tube amp for a Hostille Tube Enviornment
  110. practical choice for an amp
  111. Simple cathode CCS
  112. 2A3s in push pull; class A
  113. 5 VDC heater question
  114. Power transformer snerring.
  115. Subminiature Tube & Tripath Hybrid Integrated
  116. 211
  117. Which of these output tubes?
  118. High Voltage Heater info
  119. 6SL7 in place of a 12AX7?
  120. DHT Tubes
  121. Driving 6AQ5's
  122. schematic wanted
  123. 807s replacing 6L6GCs
  124. Shielded vs twisted pair in internal wiring
  125. tube basics: computing mu and transconductance
  126. Aluminium vs steel chassis
  127. Etf06 & 07
  128. FU 13 tubes
  129. Good Souinding Direct Replacement For 325 / OP 37
  130. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  131. The Russian 5U4M is a 5AR4 equivalent ?
  132. WE427A Cold Cathode Diode
  133. reversing polarity in regulated B+ and other question
  134. Anthem Integrated 1
  135. Hickok 800 settings
  136. Advice/Help - Cap upgrade
  137. question on old tube sockets
  138. fisher sa-16 very red tube and?
  139. pros/cons of a 845 VS 211
  140. Preamp Power and Voltage Output
  141. Anyone seen these 6L6GCs before?
  142. online transformer info for newbies
  143. High voltage pseudo-triode
  144. Yes, again: mains-powered KILLER amp without a power transformer.
  145. Quicksilver 300b monoblock (KT88 conversion)
  146. Output transformer (SE) - DIY
  147. is Gary Pimm still around?
  148. carbon composition - 2 types
  149. Input attenuation on Leak amp
  150. 101D Sockets
  151. PC86, '88 RF Amplifiers
  152. Jolida SJ-302A tube swap
  153. Inductance for tweeter OPT
  154. Help me.......What is the 6SN7 ???????
  155. high DCR secondary (power transformer)
  156. Transformer power formula Help???
  157. 2A3 OTL 800 Ohm Speaker
  158. Trying to find specs on transformer core material
  159. 12AX7 suggestions?
  160. power supply (cap input)
  161. is it safe to connect these secondaries in series?
  162. Peter Millett's Uniamp with KT88
  163. Mystery transformer
  164. Can I phase split like this?
  165. How to model psud2 using tube regulator?
  166. Choke-loaded 6C33C stage
  167. EL84 as both driver and output stage.
  168. Silvertone (Sears) stereo amp
  169. Chasing hum in a new tube amp
  170. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  171. 6bx7gt Se Amp
  172. Beard P100 Bias Lights
  173. Metasonix TS-21 modulator
  174. help with diyparadiso schematics
  175. electrostatic shield - nice to have or recommended or doesn't matter?
  176. Simple method for 240V from 240V line
  177. Audiophile bibliophilia nervosa
  178. Help with amp layout
  179. Why triode Mk3 is louder than stock Mk3
  180. Seduction or Cornet for phono???
  181. Please review my 6AQ5 Amp
  182. 832A PP Amp LTP
  183. Checklist to observe before applying the mains
  184. C3g driving 2a3: Triode or pentode?
  185. psud2 question and Fi Primer's 211 circuit
  186. Jolida JD-301A & Jadis DPL
  187. Headphones with a Tube Amp
  188. 6S3B-V Wire-Ended Single-Triode tube
  189. Anode stoppers
  190. Weird Quad II mains transformer help
  191. Mullard 5-20 parts list
  192. has anyone DIYed a Citation 2?
  193. Bogen/plexi conversion question
  194. Matched pair - different brands
  195. ERIC Mod 3460P Restore
  196. PV12 Preamplifier
  197. Grandma's old Capitol Console
  198. Music Angel
  199. What is the version of 45
  200. Aikido for guitar?
  201. Heathkit potted power transformer question
  202. Thermionic Cooling?
  203. What have the finest sound, the PX4 or the 45 ?
  204. value of a cap between driver tube and output tubes
  205. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  206. Mini EL84 Amp Done
  207. Overcoming Miller
  208. Heathkit Schematic model AA-50 needed
  209. Help me choose please
  210. Mono Class A SE Schematics
  211. Irish DIY Meet.
  212. Sizing PP OPT
  213. 6BQ5/EL90 guitar amp schematics wanted
  214. Do SE transfomers get hot?
  215. Aikido Questions
  216. LTP with interstage trafo
  217. 6BQ5 Push-Pull amplifier
  218. Amplifier input
  219. C#@$ quality 6L6EH's
  220. Mains toroids appear to be great for audio
  221. High bias point.
  222. ebay amp
  223. GU 50 output modification
  224. 6C41Cs Class-A PP
  225. My First Big Amp
  226. sv572-10
  227. Stupid PAS-2 Pot Questions
  228. Old electronics articles
  229. UL Feedback
  230. who know fd23 and fd422 tubes?
  231. Laptop amplifier
  232. Thoughts Of Modifying My First Tube Amp.
  233. Quick question for Eli Duttman (or others!)
  234. Blackened GZ32 glass envelopes
  235. Are these vintage vacuum tubes suitable.....
  236. Tube XP8109-02?!
  237. peak current 300B heater with start up
  238. Microphonic phono preamplifier
  239. Pentode Plate Load
  240. what monoblocks to build?
  241. All tube direct box
  242. max b+ for 6V6
  243. What speakers to go with tubes ??
  244. Bluenote Koala Tube CD Player
  245. OPTs and power for bi-amping
  246. Quick And Dirty ~75W Guitar Amp
  247. Old Diodes
  248. Father, I abused my Leak S/20
  249. 6688/E180F line stage?
  250. Variable feedback to enhance damping factor at low frequency

Content Relevant URLs by vBSEO 3.3.2