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. Op-Amp Like Line Preamp
  2. SE GU-50/6CB6 Pentode Design
  3. Pioneer SX34
  4. About metal film resistor in a tube tuner
  5. Looking for 52dBs or more MM phono
  6. Winter is coming... Time to start GM70 SE parafeed amp
  7. Doug Self: Wireless World Magazine Article Archive
  8. Relay short circuit
  9. EL34 PP oscillating
  10. Dynaco switchable diode/tube rec and driver tube mode
  11. CCS into a VR with Interstage question
  12. 6SN7-6V6x2 DC coupled 2 stage with stacked supplies
  13. Rectifier and DC filtering relationship question
  14. Class A2 6JD5 Curves
  15. Motorola HS-839 Amp problem
  16. Active valve monitors?
  17. Did I get this load calculation right?
  18. Convergent SL1 original schematic
  19. Bleed down resistor
  20. How do I calculate resistor value in this schematic?
  21. Easy question about tube data sheet
  22. Tube regulator question
  23. Tube amp build for an 1st timer.
  24. Full music 101d input tube/valve
  25. EZ80 Voltage Question
  26. What the heck is this? Bulb?
  27. Audio Note Kit 1 Upgrade
  28. Will this work? (EL34 PP)
  29. Anthem 1 intergrated amp
  30. Tubes and the sun?
  31. Two triodes cascaded cathode follower?
  32. HIRAGA PREAMP PHONO + line
  33. OB2WA Radioactive???
  34. 9 pin tube socket pcb boards with screw terminals
  35. Hai I need a little help on designing a power supply
  36. Tesla E83CC Frame Grid Tube Purchase - Legitimate Production or Fakes?
  37. Cleaning Up the Noise + Selector Switch Anomalie
  38. first tube preamp
  39. Rescuing a vessel : 1964 HICKOK 539C tube tester
  40. Dynaco Feedback
  41. Mundorf Silver Oil in hot 300B tube amplifier !!
  42. MULLARD 5-20 build with mods
  43. Choke loaded driver with small opt?
  44. Preamp Tube Bias and feedback
  45. Capacitor replacement option
  46. New EL84 SE Amp PCB: The u-SE
  47. Question about Amp Theory
  48. Help needed for modifying DAC-opamp-tube circuit
  49. best way to start with tube amps
  50. Damper diode between C1 and L1
  51. Question about 'near' zero volt bias for low level stages
  52. Filmosound 179 - Should I even bother?
  53. Newbie question
  54. I think I know how it works, but can I get some help? (OddWatt PP)
  55. kt150
  56. As anyone considered black oxide???
  57. OTL question
  58. Headphone amp/preamp project.
  59. Comments or suggestions on this schematic?
  60. Twin Conn Organ 7868 Rebuild
  61. Favorite PP 6550 schematic?
  62. DECWARE Z BOX SCHEMATIC
  63. 6V6
  64. Need suggestion for eliminating noise from aluminum cover
  65. Kuba Serenade Stereo Console question.
  66. Help with tube interchangeability
  67. 6sn7(12au7)-6v6-300b
  68. Westinghouse tube amp MODEL V2508, conversion
  69. Voltage on the chassis, bad xformer?
  70. TubeCad blues...
  71. OPT as PSU filter???
  72. Tube Plate Voltage Timing
  73. Transformer grounding
  74. Two questions concerning bleed resistors
  75. Choke ratings and resistor values in choke input supply?
  76. Novar Spud :: A $200 sweep tube Spud with PCB
  77. Mid 50s 250/500/1000W Valve amp needs some repairs......
  78. I want to learn tubes and set up a workstation
  79. Pre amp wire up__new
  80. allied knight / rauland borg schematic needed
  81. Rollable Tubes
  82. n00b - Leave out the LEDs??
  83. Aikido 5687 all in one kit
  84. 6P13S - WHAT TO DO WITH
  85. el84 set amp for 90db-8ohm speaker?
  86. My first cap coupled 2 stage
  87. Dodd Buffer Tube Rolling?
  88. Lowest THD Tube Design Possible? (Need for a class, I realize it doesn't matter)
  89. Olson-Morgan 6F6 Amplifier Info's needed.
  90. Newbie, Help with datasheet
  91. Conrad Johnson MV55 again - and Hi from a newb
  92. Interesting one piece EL34 PP tube amp diy pcb on ebay
  93. Low power stereo (dual mono) tube headphone amp
  94. 6EJ7's vs. 6JC6A
  95. EL34s Frying in my Cayin A50-T
  96. Grid Leak Amplifier with Unexpected Heater Resistor
  97. 7617 tube data
  98. preamplifier with huge amplification
  99. Counterpoint Amp Output
  100. Phase inverter Gremlins in Philips EL6431 amp
  101. Russian to English Translation needed
  102. Concertina type Phase inverters?
  103. Double C-Core output transformers
  104. Amplifier slew rate and DSD playback
  105. Bypassing volume pot on Cayin integrated tube amp
  106. Distortion when change into ecc83
  107. Mighty Midget Problem (One channel is louder)
  108. Mullard ECL86 3W Economical Amplifier
  109. Building a Baby Huey EL84 amp - might need some pointers
  110. Tranformer Choice
  111. Heathkit WM-5
  112. Aikido preamp power supply
  113. identify this traffo
  114. transformers
  115. parallel tube amplifier.
  116. What to do with a 12" x 8" enclosure?
  117. Odd filament winding
  118. transformers
  119. tube choices for an ST70
  120. "Arabella" - 6EM7 amplifier on Acacia
  121. CDE acquisition of Orange Drop Brand
  122. What is this inductor?
  123. Counterpoint SA-5000 upgrade
  124. Homebrew tube preamp noise
  125. Cathode follower with 12ax7
  126. CPC Japanese Tubes ?
  127. Cary SLA-70 with KT88 - worth building?
  128. Opinions or comments on schematic please
  129. Is this a tie point or a diode?
  130. Need Pinout Help, Silvertone Organ Amp
  131. Pushing EL36 ??
  132. Power Supply Chokes Question ?
  133. First Post, Viking/T Eaton co Tube Amp Issues! *Pictures*
  134. Knight 40 W Amp. tubes correct? Location?
  135. Push-Pull Output Transformer with Cathode Feedback Winding?
  136. 300b amp help
  137. Help with Dynaco value
  138. INTERSTAGE 2A3/211
  139. TCJ Push Pull Amp Calculator question
  140. winter project KT88 PP
  141. En Vogue Darling SRPP SE SRPP tube amp will this work?
  142. Shunt regulation for HT
  143. Unison research simply two, what gridvoltage for EL34?
  144. Finally Measured my Tube Preamp
  145. Aikido octal stereo problems
  146. Philips 5 pin IEC connector in AG9016
  147. Dynaclone OPT replacement - less power than expected
  148. 2 ECL 805 SE
  149. All DHT headphone amp with 4P1L & 307A
  150. cary audio rocket 88 tube amp
  151. Compactron Driver Dynaco MarkIII PCB Design.
  152. Paralelling pentodes ?
  153. KT120 Single Ended Ultralinear
  154. Does a PCL805 glow red at its maximum rating?
  155. V1 Noise Reduction Choices
  156. full pentode ppp
  157. Input transformer question
  158. Is this Tesla ECC803S real or fake?
  159. Michaelson and Austin TVA-1
  160. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  161. 6EB8\6GN8 P-P Output 2*12w Class-B
  162. B+ regulator for KT88 amplifier
  163. Help figuring out wind/hiss
  164. 12A07 low voltage preamp
  165. Buying guideline for 6c33c
  166. New 211/VT4c shootout
  167. GM70 Output transformer
  168. OTL 2013
  169. Octal Preamp Triode Thoughts (IDHT's)
  170. Wrong tube and pin wiring
  171. New Production Tube If Transformers from Germany
  172. Vishay TX2575 resistor placement
  173. Direct connected madness
  174. RH84 build & quite a few questions...
  175. Tube preamp kits
  176. Capacitor query L1 audio innovation pre-amp
  177. Someone Told Me This Wouldn't Work?
  178. How to "do" a FM Multipath Monitor
  179. EF86 pins 2 & 7
  180. Welborne 300B DRD amp
  181. My First Tube Project: 6N16B
  182. Triode mod with G2, G3 connect to anode
  183. Valve mic cable diy
  184. Toroidal transformer is bad
  185. Coupling caps suggestions
  186. EABC80 and the double diode triode?
  187. Frequent Question -Golden Tube Audio 300B monos schematic??
  188. Transformer Terminal Designators
  189. Slew rate limiting in output stage
  190. Sonic Frontiers Line 2 - no line level output
  191. KT88 Ultralinear?
  192. Help with 12AT7 CCDA - EL34 SE Amp Design?
  193. THE FINAL AMP
  194. need 6SN7/6H8C reccom. for amp
  195. 211 parallel amp (made in Iran)
  196. Changing to twisted pair heater from one side grounded
  197. Choke input supply. Cap question.
  198. tube rectifier 6AX4GT
  199. RS1003 triode mode Spice models
  200. Firestone 6V6 Monoblock Problems
  201. Lundahl Output transformers?
  202. GMI-6 / GMI-6-1
  203. New power transformer for Millett's DCPP amp,now available at EDCOR
  204. Tuned Circuit?
  205. remote lead for tubes
  206. Building a Stereo EL84 auto bias PP tube amp
  207. Tube conversion of differential to single ended signal
  208. A transconductance tube amplifier
  209. Unknown Tube
  210. 12vdc to 150vac
  211. When is a tube too weak?
  212. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  213. Biasing aBerning EA-230
  214. Aikido Noob - Please Help!
  215. Wiring Capacitors in Series
  216. Dynaco ST35 power transformer
  217. sunn 200s diagnosis?
  218. Individual Coupling Caps
  219. Valve Pre > Intergrated amp
  220. Whats the difference RH84 or Mullard 3-3?
  221. Ultra-Linear SE EL84?
  222. Self balancing pp using ccs question
  223. Help: How To Select Schottky Rectifer Diode
  224. 6550 plate resistance in triode mode? Calculate?
  225. making 6sj7 have same gain as 6sl7
  226. Thick Film resistors?
  227. Mounting position EL84
  228. Curve Tracer: Which One To Buy, What To Consider, Options ?
  229. 71A Tube Filament: AC or DC ?
  230. My Current Line + Phono Combo
  231. What is better than one audioromy M-828A FU29?
  232. Mazda tube
  233. Aikido selectable gain
  234. Preamp power supply
  235. Has anyone used CV9 tubes in a pp design
  236. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  237. BALANCED AUDIO VK 5 VK20
  238. Output transformer computation
  239. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  240. Input Attenuators
  241. new build SE to EL 508
  242. found this on kickstarter
  243. SE Output Transformer question
  244. Safety of DC-coupled inputs
  245. Found some old tubes.
  246. Presence control
  247. lafayette pa 622 -> Guitar amp conversion
  248. Fixing an amp head - bad tubes?
  249. EL84 what factory produced it?
  250. Trio Corp 300b fake?

Content Relevant URLs by vBSEO 3.3.2