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. Bleed down resistor
  2. How do I calculate resistor value in this schematic?
  3. Easy question about tube data sheet
  4. Tube regulator question
  5. Tube amp build for an 1st timer.
  6. Full music 101d input tube/valve
  7. EZ80 Voltage Question
  8. What the heck is this? Bulb?
  9. Audio Note Kit 1 Upgrade
  10. Will this work? (EL34 PP)
  11. Anthem 1 intergrated amp
  12. Tubes and the sun?
  13. Two triodes cascaded cathode follower?
  14. HIRAGA PREAMP PHONO + line
  15. OB2WA Radioactive???
  16. 9 pin tube socket pcb boards with screw terminals
  17. Hai I need a little help on designing a power supply
  18. Tesla E83CC Frame Grid Tube Purchase - Legitimate Production or Fakes?
  19. Cleaning Up the Noise + Selector Switch Anomalie
  20. first tube preamp
  21. Rescuing a vessel : 1964 HICKOK 539C tube tester
  22. Dynaco Feedback
  23. Mundorf Silver Oil in hot 300B tube amplifier !!
  24. MULLARD 5-20 build with mods
  25. Choke loaded driver with small opt?
  26. Preamp Tube Bias and feedback
  27. Capacitor replacement option
  28. New EL84 SE Amp PCB: The u-SE
  29. Question about Amp Theory
  30. Help needed for modifying DAC-opamp-tube circuit
  31. best way to start with tube amps
  32. Damper diode between C1 and L1
  33. Question about 'near' zero volt bias for low level stages
  34. Filmosound 179 - Should I even bother?
  35. Newbie question
  36. I think I know how it works, but can I get some help? (OddWatt PP)
  37. kt150
  38. As anyone considered black oxide???
  39. OTL question
  40. Headphone amp/preamp project.
  41. Comments or suggestions on this schematic?
  42. Twin Conn Organ 7868 Rebuild
  43. Favorite PP 6550 schematic?
  44. DECWARE Z BOX SCHEMATIC
  45. 6V6
  46. Need suggestion for eliminating noise from aluminum cover
  47. Kuba Serenade Stereo Console question.
  48. Help with tube interchangeability
  49. 6sn7(12au7)-6v6-300b
  50. Westinghouse tube amp MODEL V2508, conversion
  51. Voltage on the chassis, bad xformer?
  52. TubeCad blues...
  53. OPT as PSU filter???
  54. Tube Plate Voltage Timing
  55. Transformer grounding
  56. Two questions concerning bleed resistors
  57. Choke ratings and resistor values in choke input supply?
  58. Novar Spud :: A $200 sweep tube Spud with PCB
  59. Mid 50s 250/500/1000W Valve amp needs some repairs......
  60. I want to learn tubes and set up a workstation
  61. Pre amp wire up__new
  62. allied knight / rauland borg schematic needed
  63. Rollable Tubes
  64. n00b - Leave out the LEDs??
  65. Aikido 5687 all in one kit
  66. 6P13S - WHAT TO DO WITH
  67. el84 set amp for 90db-8ohm speaker?
  68. My first cap coupled 2 stage
  69. Dodd Buffer Tube Rolling?
  70. Lowest THD Tube Design Possible? (Need for a class, I realize it doesn't matter)
  71. Olson-Morgan 6F6 Amplifier Info's needed.
  72. Newbie, Help with datasheet
  73. Conrad Johnson MV55 again - and Hi from a newb
  74. Interesting one piece EL34 PP tube amp diy pcb on ebay
  75. Low power stereo (dual mono) tube headphone amp
  76. 6EJ7's vs. 6JC6A
  77. EL34s Frying in my Cayin A50-T
  78. Grid Leak Amplifier with Unexpected Heater Resistor
  79. 7617 tube data
  80. preamplifier with huge amplification
  81. Counterpoint Amp Output
  82. Phase inverter Gremlins in Philips EL6431 amp
  83. Russian to English Translation needed
  84. Concertina type Phase inverters?
  85. Double C-Core output transformers
  86. Amplifier slew rate and DSD playback
  87. Bypassing volume pot on Cayin integrated tube amp
  88. Distortion when change into ecc83
  89. Mighty Midget Problem (One channel is louder)
  90. Mullard ECL86 3W Economical Amplifier
  91. Building a Baby Huey EL84 amp - might need some pointers
  92. Tranformer Choice
  93. Heathkit WM-5
  94. Aikido preamp power supply
  95. identify this traffo
  96. transformers
  97. parallel tube amplifier.
  98. What to do with a 12" x 8" enclosure?
  99. Odd filament winding
  100. transformers
  101. tube choices for an ST70
  102. "Arabella" - 6EM7 amplifier on Acacia
  103. CDE acquisition of Orange Drop Brand
  104. What is this inductor?
  105. Counterpoint SA-5000 upgrade
  106. Homebrew tube preamp noise
  107. Cathode follower with 12ax7
  108. CPC Japanese Tubes ?
  109. Cary SLA-70 with KT88 - worth building?
  110. Opinions or comments on schematic please
  111. Is this a tie point or a diode?
  112. Need Pinout Help, Silvertone Organ Amp
  113. Pushing EL36 ??
  114. Power Supply Chokes Question ?
  115. First Post, Viking/T Eaton co Tube Amp Issues! *Pictures*
  116. Knight 40 W Amp. tubes correct? Location?
  117. Push-Pull Output Transformer with Cathode Feedback Winding?
  118. 300b amp help
  119. Help with Dynaco value
  120. INTERSTAGE 2A3/211
  121. TCJ Push Pull Amp Calculator question
  122. winter project KT88 PP
  123. En Vogue Darling SRPP SE SRPP tube amp will this work?
  124. Shunt regulation for HT
  125. Unison research simply two, what gridvoltage for EL34?
  126. Finally Measured my Tube Preamp
  127. Aikido octal stereo problems
  128. Philips 5 pin IEC connector in AG9016
  129. Dynaclone OPT replacement - less power than expected
  130. 2 ECL 805 SE
  131. All DHT headphone amp with 4P1L & 307A
  132. cary audio rocket 88 tube amp
  133. Compactron Driver Dynaco MarkIII PCB Design.
  134. Paralelling pentodes ?
  135. KT120 Single Ended Ultralinear
  136. Does a PCL805 glow red at its maximum rating?
  137. V1 Noise Reduction Choices
  138. full pentode ppp
  139. Input transformer question
  140. Is this Tesla ECC803S real or fake?
  141. Michaelson and Austin TVA-1
  142. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  143. 6EB8\6GN8 P-P Output 2*12w Class-B
  144. B+ regulator for KT88 amplifier
  145. Help figuring out wind/hiss
  146. 12A07 low voltage preamp
  147. Buying guideline for 6c33c
  148. New 211/VT4c shootout
  149. GM70 Output transformer
  150. OTL 2013
  151. Octal Preamp Triode Thoughts (IDHT's)
  152. Wrong tube and pin wiring
  153. New Production Tube If Transformers from Germany
  154. Vishay TX2575 resistor placement
  155. Direct connected madness
  156. RH84 build & quite a few questions...
  157. Tube preamp kits
  158. Capacitor query L1 audio innovation pre-amp
  159. Someone Told Me This Wouldn't Work?
  160. How to "do" a FM Multipath Monitor
  161. EF86 pins 2 & 7
  162. Welborne 300B DRD amp
  163. My First Tube Project: 6N16B
  164. Triode mod with G2, G3 connect to anode
  165. Valve mic cable diy
  166. Toroidal transformer is bad
  167. Coupling caps suggestions
  168. EABC80 and the double diode triode?
  169. Frequent Question -Golden Tube Audio 300B monos schematic??
  170. Transformer Terminal Designators
  171. Slew rate limiting in output stage
  172. Sonic Frontiers Line 2 - no line level output
  173. KT88 Ultralinear?
  174. Help with 12AT7 CCDA - EL34 SE Amp Design?
  175. THE FINAL AMP
  176. need 6SN7/6H8C reccom. for amp
  177. 211 parallel amp (made in Iran)
  178. Changing to twisted pair heater from one side grounded
  179. Choke input supply. Cap question.
  180. tube rectifier 6AX4GT
  181. RS1003 triode mode Spice models
  182. Firestone 6V6 Monoblock Problems
  183. Lundahl Output transformers?
  184. GMI-6 / GMI-6-1
  185. New power transformer for Millett's DCPP amp,now available at EDCOR
  186. Tuned Circuit?
  187. remote lead for tubes
  188. Building a Stereo EL84 auto bias PP tube amp
  189. Tube conversion of differential to single ended signal
  190. A transconductance tube amplifier
  191. Unknown Tube
  192. 12vdc to 150vac
  193. When is a tube too weak?
  194. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  195. Biasing aBerning EA-230
  196. Aikido Noob - Please Help!
  197. Wiring Capacitors in Series
  198. Dynaco ST35 power transformer
  199. sunn 200s diagnosis?
  200. Individual Coupling Caps
  201. Valve Pre > Intergrated amp
  202. Whats the difference RH84 or Mullard 3-3?
  203. Ultra-Linear SE EL84?
  204. Self balancing pp using ccs question
  205. Help: How To Select Schottky Rectifer Diode
  206. 6550 plate resistance in triode mode? Calculate?
  207. making 6sj7 have same gain as 6sl7
  208. Thick Film resistors?
  209. Mounting position EL84
  210. Curve Tracer: Which One To Buy, What To Consider, Options ?
  211. 71A Tube Filament: AC or DC ?
  212. My Current Line + Phono Combo
  213. What is better than one audioromy M-828A FU29?
  214. Mazda tube
  215. Aikido selectable gain
  216. Preamp power supply
  217. Has anyone used CV9 tubes in a pp design
  218. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  219. BALANCED AUDIO VK 5 VK20
  220. Output transformer computation
  221. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  222. Input Attenuators
  223. new build SE to EL 508
  224. found this on kickstarter
  225. SE Output Transformer question
  226. Safety of DC-coupled inputs
  227. Found some old tubes.
  228. Presence control
  229. lafayette pa 622 -> Guitar amp conversion
  230. Fixing an amp head - bad tubes?
  231. EL84 what factory produced it?
  232. Trio Corp 300b fake?
  233. Cheap triode class A 3Watt + assembled/kit you know ?
  234. Elekit tu 879s upgrades
  235. EZ80 Choke Input Max Capacitance
  236. Correct measurement of filament voltage.
  237. Who put the "half" in the Koren SPICE equation
  238. 5Y3 tube rectifier
  239. Triode or ultraliner connected ?
  240. What is the "Tube Sound"?
  241. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  242. Which KT88 ?
  243. Why make a tube amp that sounds like a SS amp?
  244. Mark VI power Supply
  245. audioromy fu29 - not working, repair or scrap?
  246. Valve amp questions for someone new to them.
  247. Driving Parallel Tubes
  248. Matching quad set
  249. Anyone listen a 46 in UL mode ?
  250. McIntosh MC30 vs. Fisher 80-AZ

Content Relevant URLs by vBSEO 3.3.2