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

  1. Is this feasible?
  2. Repairing 805 tubes
  3. jadis defy 7 help
  4. 6n1p Screen
  5. Mc275ce
  6. Are these tubes are the same?
  7. "King of tube(s) for line-stages"
  8. Acoustic Plan PhonoMaster
  9. Heathkit AA-81 schematic
  10. has anyone kept a copy of gpimm's latest self-biasing CCS?
  11. How to wire inductor - s and n
  12. Rogers Cadet III schematics Corrections
  13. Hickok TV-7/U restoration advice needed.
  14. Rogers Cadet III to SY's Red Light District or Gingertubes's Baby Huey
  15. 24v Aikido for newb.
  16. Powering Up Old Tube Amps/Receivers
  17. preliminary schematic drawing rev.1a
  18. Not a typical MKIII Dynaco.
  19. mosfet buffer for power stage
  20. EI KT-90 news
  21. 304TL based Class A
  22. Purchasing NOS Tubes
  23. tube power supply design resources
  24. High Voltage Regulator Design
  25. max. output for two 5881 tubes?
  26. Excessive current draw in Fender Deville
  27. driving your power stage
  28. Need schematic Cary Audio SLP-70 preamp
  29. Bridge-balanced amplifiers
  30. Tell-tale signs of good feedback usage?
  31. Any mid priced SE transformers around?
  32. Bias resistor
  33. Some sneek peeks
  34. Old radio with 4 pin sockets, info?
  35. need help on pot tapers
  36. A typical KT88 tubes
  37. amplifier for unknown output transformers?
  38. vista audio
  39. CV4014 and 5650 - any audio application of these tubes?
  40. SVP-PRO schematic
  41. Looking for a good source for attenuators
  42. Center-tap to ground?
  43. 6n1p-ev operating points
  44. where to find old pot's with switch built in
  45. Maggie refurb project
  46. Parafeed output
  47. Hirtel junior stereo italian tube amp
  48. power supply help
  49. 7189/7189A Problem
  50. Glow modulation tubes
  51. Transformer Hum leaks to Speakers
  52. EAR Yoshino V20 Amplifier
  53. Repair a tube tester?
  54. starting PP - 6p3s
  55. 6BL7 rA in PP
  56. Why such high plate voltage in 2A3 DRD?
  57. to parafeed or not to parafeed that is the question
  58. Lowering voltage output of transformer
  59. Using EL34 in a line stage
  60. peerless transfomer information
  61. Output transformer design for SS amp
  62. CD source fortube amp
  63. What's the SIMPLEST 50W or higher Amp Schematic but best sound you've heard ?
  64. BIG tube amplifier, two qbl5/3500 tubes
  65. EL34 or 6L6 mono help me please!!
  66. Why don't we use output tubes as cathode followers?
  67. 6C33 driver recommendations
  68. 100watt power, fixed gain far cleaner than Marshall amp any sugestion
  69. Minimum Zener Current with Pass Device
  70. Favorite easy 6V6 push-pull circuit?
  71. Tubecad soft-clipping circuit
  72. broskie voltage regulator
  73. E88CC dissipation in Aikido
  74. Magnavox 6BQ5/EL84 and Mr. Gabe
  75. Aikido hum has me stumped !!!!
  76. 5842 and 5842 WA for 300B
  77. Basic tube combination question.
  78. Resistive ps voltage follower
  79. First time DIY tube
  80. Need help with hum and faint left channel on my S5 Electronics kit
  81. grid impedence of paralleled tubes in push pull
  82. Fender Bassman PT Rewind
  83. rectification
  84. 6AU6 Varieties
  85. EMI tubes (British made)
  86. valve wear symptoms?
  87. Standby switch, snap, crackle, pop?
  88. Aikido PSU questions (Bas Boards)
  89. one tube amps
  90. Intermittant Clicking
  91. How to solve noise/storing/on car Tube Amp ? any Schematic ?
  92. Series MOSFET regulator better with just voltage ref on gate or with error amp?
  93. Tube spice models
  94. Audible Illusions Modulus faulty?
  95. Ei Tubes..
  96. more output transformer questions
  97. 6C33 design comments?
  98. Current production EL34
  99. Impedance matching
  100. question about multiple input transformer in same tube mic pre.
  101. One tube preamp
  102. Help 6G-E12A pinout??
  103. DIY Jadis JA 30 power amp PCB
  104. output tube options
  105. wanted: accurate 257 tube tester manual
  106. Developing a "universal" tube power supply PCB
  107. Looking for a Cover....
  108. EL34 Sound
  109. Pinout ECC83 to ECC808
  110. How to convert S5 K-12g kit to dual mono?
  111. EL84 + EF86
  112. Tube amps, power and speaker impedance
  113. How to figure output Z of SRPP?
  114. Rose RV23 preamp
  115. Wanted RIAA stage with 6SN7
  116. Help with PSU Design
  117. Tetrode output stage
  118. New amplifier project -my layout
  119. jadis ja 30
  120. Aikido Attenuator kit question
  121. Fender Delux Reverb AB763
  122. Weird crackling sound without B+ applied
  123. More Aikido questions...........
  124. 6C41C in OTL?
  125. Looking for Voss-Ellis article
  126. 807 E-Linear
  127. ECC86 model
  128. Tube ID & Code Help Needed
  129. PS Decoupling question
  130. Need help in trouble-shooting my AES Sixpacs amp
  131. Space between power tubes
  132. Schematic please? SRPP with current source cathode follower
  133. Series connecting output Transformers.
  134. 6C45-Pi battery RIAA/Pre sugestions?
  135. Good News For EI Tube Fans
  136. My 300B project...
  137. building Single Ended amps
  138. Higher power amps using 807's or 1625's
  139. Project using Eico ST 70 Iron?
  140. M-1 amplifier kit - full documentation in public domain now
  141. Sus tubes ?
  142. Adjusting BIAS
  143. "Shrine" SE Amp using 6AH6 and 1625
  144. MFA Lumi - possible to "un-darken" the sound signature?
  145. Output transformers resistance
  146. Aikido heaters
  147. Return to Aikido Hum issues
  148. Looking for Schematic 6550 tube amp triode mode more than 35Watt ?
  149. Compare the sound of 6550 amp to a 6L6 amp
  150. Biasing a valve amp
  151. Scoundrel days
  152. Counterpoint SA100 one channel doesn´t work
  153. Hepl me circuit 6h30
  154. 6LR8 Amp Preliminary Questions
  155. Another 6L6 schematic
  156. 6S19P Amplifier
  157. An idea for a PL84 amp with toroidal interstage.
  158. 417A-300B Plate Choke or Interstage Coupled?
  159. Identifying an unknown tube
  160. Looking for EL34 PP Schematic Amp ? at least 35Watt
  161. ADVICE on Valvestate crunch, but all tube instead.
  162. Help diagnosing noise
  163. st70 blowout
  164. Gu81-m
  165. 6c4 pre-amp circuit
  166. 6SN7 6.3 V heater supply
  167. 2C26 &E1148's
  168. First ECL82 amp probs.
  169. JE Labs ST2A3DX
  170. Punchy 813 Poweramp
  171. Hum in AE K502 or K12m
  172. SE 6SN7 amp....
  173. Audio Innovations 800C schematic or even better service manual?
  174. Music angel amps
  175. Low gain 9-pin tubes for Aikido?
  176. JADIS ORCHESTRA IN PCB (original is hardwire)
  177. Blown Valve in ARC VT50 - help
  178. LAMM ML3 *Signature*
  179. Diode for DC heater
  180. Calculating shunt reg source impedance
  181. Marant 7c preamp diyzone project
  182. PSU Caps for an EL34 SET
  183. high gain 12ax7 preamp from scratch?
  184. IXYS 10M45 chip CCS
  185. Octal Aikido? What tubes?
  186. Tube power supply questions
  187. 6J5 input swing
  188. Checking spice model plate curve accuracy
  189. How many Ohm for triode strapping?
  190. Power supply for Heathkit WA-P2 pre-amplifier
  191. Bogen MX-60a tune-up
  192. dynaco st35 clone problem
  193. Edcor OPT's
  194. ECC40 cascode
  195. Air Vane RIAA Tuning Question
  196. Tube Noob! need help with tubes lots of tubes
  197. bias adjust installation, bogen mo-100a mo 100a quicksilver
  198. 6EM7 Amp
  199. 40mu tube preamp suggestions?
  200. Safe installation of interstage
  201. I've built some amps, need suggestions for a DIY preamp or line stage
  202. CRD diode CCS any good <1mA?
  203. Help fixing a Border Patrol Power Amp
  204. TAD-60 schematics / mods
  205. Selling tube amps
  206. Drd 300b Pse
  207. Hammond Transformer Winding Resistance -- 369GX
  208. The meaning of VA in a TX
  209. Ucl85
  210. Best way to measure cathode follower current
  211. Neuman U47
  212. OT: Season's greetings to all
  213. Anyone have experience with a 6AN4...?
  214. L-pad instead of H-pad??
  215. valve regulated psu
  216. looking for metal enclosure for custom preamps
  217. basie+aikido preamp
  218. Input Switch?
  219. Help me please
  220. Congratulations, you just built a $2K antenna !
  221. Sonic Frontiers Line 2, please help?
  222. Sovtec 12AX7
  223. removing AC Hum on Aikido????
  224. Stereo Build - Mikaels KT88
  225. 6V6GT scematic, any good, comments?
  226. 807 vs 811A output: Sonic preference?
  227. Cheap PP OPTs
  228. Mc C-22 Ce
  229. Transformer Coupled Linestage
  230. 6CY7 Variants
  231. EZ81 rectifier noise
  232. Any good Output Transformers from China?
  233. Solid Core or Multistrand?
  234. Aikido - alive and kicking butt (not mine!)
  235. Dead Copland CTA-501
  236. Is the E86L the industrial sister of the EL86?
  237. Hammond 1630SEA, worth trying?
  238. Using Gas Regulators
  239. Cheap and Chinese KT88 SE amp
  240. Cary v12 -> V12r Conversion Questions
  241. 15 watts loud enough?
  242. ST70 hybrid finally up and running !!
  243. The Making of a Triode
  244. Spice models
  245. HV SS bench top power supply, advice needed
  246. A new Aikido is born - and kicking butt!
  247. Preamp - DIY vs Audio Research (or similar)
  248. Stromberg-Carlson 433 : Add standby or not?
  249. All-tube digital clock
  250. audible illusions dual mono preamp

Content Relevant URLs by vBSEO 3.3.2