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. 24V Aikido --> 6GM8 with Buffer
  2. Motorboating in Dynaco ST-70
  3. Does such a tube exist?
  4. Noisy PSU?
  5. Bell & Howell amp
  6. Valve Amp with soild state front end
  7. Controlling transient response
  8. Transcendar Budget SE Transformers
  9. Opinion on New Sensor 6SN7GTB?
  10. Determining optimal OT turns ratio
  11. Splitting up the Power Amp
  12. Sowter 5113
  13. Cascoded 6N6P
  14. MachMat or Tentlabs Heater Supply for 300B
  15. Common mode filtering for heater supplies.
  16. Distortion.
  17. 83 rectifier peak repetitive current?
  18. 813 Project has begun !
  19. C3G PX25 DRD - Will it work
  20. 6J5 (Metal Tubes) ....something goes around inside
  21. common-mode chokes
  22. EL-34 and 100k pot
  23. Scott 299 (late) OPT's
  24. Tube magazines
  25. PP plate-choke?
  26. More Phase Splitting Questions
  27. Concertina sanity check
  28. Transformer Specs
  29. The Aikido or Moskido??
  30. KT88 PP suggestion
  31. Ultrapath line amp
  32. Gross loudspeaker cone movement when using tube amps.
  33. Pre-amp power iron advice??
  34. Class A 8417 Amp
  35. DHT output tubes and DC heating
  36. rock music and SE?
  37. Disadvantages of using Zobel and Series notch filter ?
  38. old days source
  39. Mu-follower vs common cathode w/- active load
  40. K40 or K42 Russian PIO: what would you use/recommend?
  41. CCS turning off prematurely?
  42. ESL amp again!
  43. calling Moray James, and others ..wav8 or 6BM8 schemtics--PP.
  44. Does anyone know the output transformer specs of the...
  45. SE EL84 project for my friend
  46. SE amplifier - How much power?
  47. what speakers do you use?
  48. A Tube amp for a Hostille Tube Enviornment
  49. practical choice for an amp
  50. Simple cathode CCS
  51. 2A3s in push pull; class A
  52. 5 VDC heater question
  53. Power transformer snerring.
  54. Subminiature Tube & Tripath Hybrid Integrated
  55. 211
  56. Which of these output tubes?
  57. High Voltage Heater info
  58. 6SL7 in place of a 12AX7?
  59. DHT Tubes
  60. Driving 6AQ5's
  61. schematic wanted
  62. 807s replacing 6L6GCs
  63. Shielded vs twisted pair in internal wiring
  64. tube basics: computing mu and transconductance
  65. Aluminium vs steel chassis
  66. Etf06 & 07
  67. FU 13 tubes
  68. Good Souinding Direct Replacement For 325 / OP 37
  69. how to wire 6.3VDC heater on a heater with center tap (12.6V series, 6.3V parallel)?
  70. The Russian 5U4M is a 5AR4 equivalent ?
  71. WE427A Cold Cathode Diode
  72. reversing polarity in regulated B+ and other question
  73. Anthem Integrated 1
  74. Hickok 800 settings
  75. Advice/Help - Cap upgrade
  76. question on old tube sockets
  77. fisher sa-16 very red tube and?
  78. pros/cons of a 845 VS 211
  79. Preamp Power and Voltage Output
  80. Anyone seen these 6L6GCs before?
  81. online transformer info for newbies
  82. High voltage pseudo-triode
  83. Yes, again: mains-powered KILLER amp without a power transformer.
  84. Quicksilver 300b monoblock (KT88 conversion)
  85. Output transformer (SE) - DIY
  86. is Gary Pimm still around?
  87. carbon composition - 2 types
  88. Input attenuation on Leak amp
  89. 101D Sockets
  90. PC86, '88 RF Amplifiers
  91. Jolida SJ-302A tube swap
  92. Inductance for tweeter OPT
  93. Help me.......What is the 6SN7 ???????
  94. high DCR secondary (power transformer)
  95. Transformer power formula Help???
  96. 2A3 OTL 800 Ohm Speaker
  97. Trying to find specs on transformer core material
  98. 12AX7 suggestions?
  99. power supply (cap input)
  100. is it safe to connect these secondaries in series?
  101. Peter Millett's Uniamp with KT88
  102. Mystery transformer
  103. Can I phase split like this?
  104. How to model psud2 using tube regulator?
  105. Choke-loaded 6C33C stage
  106. EL84 as both driver and output stage.
  107. Silvertone (Sears) stereo amp
  108. Chasing hum in a new tube amp
  109. Zenith K731 AM/FM radio audio random cracking sound in FM mode
  110. 6bx7gt Se Amp
  111. Beard P100 Bias Lights
  112. Metasonix TS-21 modulator
  113. help with diyparadiso schematics
  114. electrostatic shield - nice to have or recommended or doesn't matter?
  115. Simple method for 240V from 240V line
  116. Audiophile bibliophilia nervosa
  117. Help with amp layout
  118. Why triode Mk3 is louder than stock Mk3
  119. Seduction or Cornet for phono???
  120. Please review my 6AQ5 Amp
  121. 832A PP Amp LTP
  122. Checklist to observe before applying the mains
  123. C3g driving 2a3: Triode or pentode?
  124. psud2 question and Fi Primer's 211 circuit
  125. Jolida JD-301A & Jadis DPL
  126. Headphones with a Tube Amp
  127. 6S3B-V Wire-Ended Single-Triode tube
  128. Anode stoppers
  129. Weird Quad II mains transformer help
  130. Mullard 5-20 parts list
  131. has anyone DIYed a Citation 2?
  132. Bogen/plexi conversion question
  133. Matched pair - different brands
  134. ERIC Mod 3460P Restore
  135. PV12 Preamplifier
  136. Grandma's old Capitol Console
  137. Music Angel
  138. What is the version of 45
  139. Aikido for guitar?
  140. Heathkit potted power transformer question
  141. Thermionic Cooling?
  142. What have the finest sound, the PX4 or the 45 ?
  143. value of a cap between driver tube and output tubes
  144. do matched pair (or maybe a quad) output tubes "aged" at the same rate?
  145. Mini EL84 Amp Done
  146. Overcoming Miller
  147. Heathkit Schematic model AA-50 needed
  148. Help me choose please
  149. Mono Class A SE Schematics
  150. Irish DIY Meet.
  151. Sizing PP OPT
  152. 6BQ5/EL90 guitar amp schematics wanted
  153. Do SE transfomers get hot?
  154. Aikido Questions
  155. LTP with interstage trafo
  156. 6BQ5 Push-Pull amplifier
  157. Amplifier input
  158. C#@$ quality 6L6EH's
  159. Mains toroids appear to be great for audio
  160. High bias point.
  161. ebay amp
  162. GU 50 output modification
  163. 6C41Cs Class-A PP
  164. My First Big Amp
  165. sv572-10
  166. Stupid PAS-2 Pot Questions
  167. Old electronics articles
  168. UL Feedback
  169. who know fd23 and fd422 tubes?
  170. Laptop amplifier
  171. Thoughts Of Modifying My First Tube Amp.
  172. Quick question for Eli Duttman (or others!)
  173. Blackened GZ32 glass envelopes
  174. Are these vintage vacuum tubes suitable.....
  175. Tube XP8109-02?!
  176. peak current 300B heater with start up
  177. Microphonic phono preamplifier
  178. Pentode Plate Load
  179. what monoblocks to build?
  180. All tube direct box
  181. max b+ for 6V6
  182. What speakers to go with tubes ??
  183. Bluenote Koala Tube CD Player
  184. OPTs and power for bi-amping
  185. Quick And Dirty ~75W Guitar Amp
  186. Old Diodes
  187. Father, I abused my Leak S/20
  188. 6688/E180F line stage?
  189. Variable feedback to enhance damping factor at low frequency
  190. Need assistance with picking the right Edcor audio transformer
  191. Critique my first design
  192. Biamping, phase of output?
  193. Ground star
  194. op-points for 27 pre...?
  195. Opinions/Experience of Toroidal valve amps
  196. hum, no way to get rid of it
  197. How to adjust my circuit for frequency response?
  198. Input Tubes?
  199. 6BG6 = 6L6GC with top cap - cheap!
  200. Maida Regulators Redux
  201. ground of DC bias supply
  202. does anyone the website for yaqin/mr. liung/music angel amps?
  203. plate load ccs ala gary p question
  204. Books for newbe
  205. 6AS7 OTL
  206. n00b phono preamp troubleshooting..
  207. TubelabSE - Anyone built?
  208. any example of SE designs using GM70?
  209. Shunt regulator question
  210. Any RH807 builders?
  211. Replacing multi-section caps with multiple caps?
  212. Recycle an Eico HFT-90 for a preamp
  213. EL84 PP output transformer for 6L6 PP class A
  214. Jensen PIO capacitor burn in
  215. toroid psu, weird results...
  216. Squeaky Noise in ARC Dual 75
  217. EL84 mod questions
  218. Measuring DC at preamp output
  219. Is Northern Electric the NEW W.E.?
  220. Burnt Woodside STA35 valve amp... Help!
  221. My tube preamplifier project
  222. Ponderings on hybrid 300B
  223. Maida Regulator Parts
  224. anyone familiar with the 211/vt4c circuit from Fi Primer?
  225. Calculating operating points of two DC stages
  226. Advice for retubing VTL Ichiban`s
  227. Need help
  228. Art Audio Kit on Common Ground Magazine
  229. Advice for retubing VTL Ichiban`s
  230. fisher 800c intermitant hum
  231. calling Yves....
  232. X10 Pre
  233. NEW KT66 - 6AU6 single ended
  234. mechanical hum
  235. Big valve preamp
  236. Question about biasing heater above cathode in a direct coupled circuit.
  237. center tapped choke inverter
  238. Guitar tube pre DIY suggestions..?
  239. Which One Of These Tube Amps Should I Buy?
  240. Tube Info
  241. Circuit/Equipment Designer
  242. help needed with noise in phono preamp
  243. Pentode driver and IT?
  244. Plate Caps for 832A
  245. 300b advice
  246. Designs on your noob, err, tube
  247. 7788 Triode Curves
  248. EL81/6CJ6 operating point
  249. Separate cathode resistors in push pull output
  250. C3m linestage

Content Relevant URLs by vBSEO 3.3.2