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. Pilot One AA-410 1950s
  2. Measuring VAC on coupling cap
  3. Tube phono stage load
  4. ANUBIS - Another Tube-Transistor Hybrid Amplifier
  5. Panasonic HV Electrolitics
  6. Unison Research Smart 845 & dripping sticky goo!
  7. Seeking Danish help to locate two 1950's magazine articles
  8. Valve cruelty ...
  9. Re- calculating RIAA network
  10. Just another cool toy to look at
  11. sherwood s-5000 vs. s-5500 iv OPt's
  12. Sound of 300B SET by Satoru Kobayashi
  13. Using UL taps instead of the anode taps to alter inpedence
  14. Help fast please! Type 3 Ei KT90's - Pre or Post War? How do you know?
  15. 807 PSE schematic design need
  16. 3 direct coupled 2A3 amps
  17. Tube preamplifier with chip power amp
  18. Anyone used IXCP10M90S ltspice model ?
  19. and the quiz identify power trans continue
  20. Valve HT power supply common-mode noise
  21. 12AX7 and 6AS5 tube amplifier
  22. Working with Eagle and single channel tube amp board.
  23. New hands-on tutorial for Tube Newbies
  24. Help me to choose tube "1 no ring" "2 has ring"
  25. Chinese board 6L6 KT88 is it worth???
  26. Valve Rectifier Testing
  27. Harman Kardon TA-120 Output Transformer
  28. Single ended transformer as pushpull?
  29. Resurrecting a nOrh SE9 Integrated Amp
  30. Fisher Amps?
  31. Repurposing an old Gulbransen Organ tube amp
  32. Help, the sound is silken or blow up?
  33. Now here's an idea - The DIYF QUAD
  34. Parallel output SE amp options
  35. What tube is equivalent 5879?
  36. Filament Xfmr: can I trade volts for amps?
  37. GU50 PP possible with this iron ?
  38. Hifi tube amps - overall sound
  39. Preamp grounding questions
  40. Tube rectifiers
  41. DIY PL84 + E180F
  42. McIntosh on How It's Made
  43. Choke input LCLC supply - question on minimum current
  44. EBC3 & CBL1 Tube AMP
  45. CLASS A HYBRID POWER AMP
  46. MXL V69 Mogami Edition signal cuts in/out
  47. Ultra-linear plate characteristic curve for EL34
  48. Need help to modify circuit to suit replacement power XFMR
  49. Line preamp schematic for 5GH8A wanted.
  50. help please - modify phono corrector
  51. Help me: Brimar 5Z4G, 5Y3GT is this an equivalent to a 5Y3WGTA?
  52. A Russian glow tube regulator with specs of 75V 60mA ?
  53. Help with filament for ecc88
  54. How much power transformer is necessary?
  55. testing the 300b tube
  56. Headphone amplifier outputs, so many permutations!
  57. tube footprint in Eagle
  58. Need VTVM repairs
  59. First Timer - DIY Tube Amp
  60. Help identify OT please
  61. gEDA and tubes
  62. Triode Electronics Issues?
  63. RCA BC5B consolette manual?
  64. Help with converting EL37 amp to KT66
  65. treadmill choke
  66. Preamp OPT
  67. Probleme with Volume Pot
  68. Simple SE 6L6 2 watt Homebrew
  69. is 6J32P equivalent of EF806 ?
  70. new tubes vs old ones
  71. 6p36s tube torture.
  72. Questions re: Bypass of B+ to differential amp
  73. Tube choice for yaqin cd3 buffer
  74. yesterday and today
  75. 260VDC need how much VAC transformer, is it 184VAC?
  76. preamp static
  77. Tube Line or Phono Stage bare kit
  78. Grounding of Hammond transformers
  79. Spud Amplifier with 6E5P Tube
  80. RAT Tube Tester build
  81. need a little help with identification
  82. aikido 12vac help needed
  83. Mullard 3-3 PCB
  84. OTL Using OPT
  85. VA/CF 6SN7 preamp input points?
  86. Copper losses in output transformers
  87. Yaqin MC550 Anyone?
  88. Bigger value output coupling
  89. DIY KT88 SEUL
  90. Leben CS300x feedback loop cap
  91. 6T8 / EABC80 as phase splitter / other uses
  92. Curve Tracer Screen Current
  93. Aikido Cathode Follower preamplifier with remote
  94. Grid Isolation in Fault Conditions
  95. Audio research ls2b parts list
  96. Heathkit USC-1 pre-amp
  97. Counterpoint SA3 Project
  98. Why such a high bias current on output valves ?
  99. how long before new tubes are run in ?
  100. Latest project, valve stereo disco mixer
  101. Mullard 5-20 EL34 biasing
  102. Parallel Driver Tubes?
  103. B+ Regulators
  104. Looking for Cary SLP98 Tube Preamplifier Schematic
  105. Hirage Le Monstre euals my best valve amps !
  106. Ran a JJ6v6S at 37 Watts, is it damaged?
  107. Zener diodes as protection clippers
  108. KT120 upgrade from KT88 6550
  109. panasonic dc link capacitors
  110. PTFE covered wire
  111. Grounding Qustion?
  112. New high-Z 1:1 input transformer from Hammond (10k:10k)
  113. Tube amp wiring and temperatures
  114. Pete Millett's Uniamp
  115. 211 tube. more time to brake in or bad tube
  116. Just a thought.
  117. Tube Heater Question
  118. No not Again...Aikido Plate dissipation question
  119. RH amp question!
  120. Mullard 5-20 power supply
  121. b&k 500 tube chart question
  122. Combining two single-ended tube stages for XLR-output - Question
  123. Scope pattern
  124. Diode cathode bias?
  125. Contact Enhancers/Corrosion Inhibitors for Aluminum
  126. My SE 46 tube monoblocks project
  127. E88CC / 6922 Datasheet Limiting Values
  128. Fisher Power Transformers
  129. does someone know about this russia amplifier ?
  130. How to improve this 6B4G push-pull circuit
  131. EL34 UL PP Transformer
  132. sears silvertone medalist stereo amp schematic needed
  133. Led bias on powertubes?
  134. Thermal Runaway
  135. Going from zero to pro tube amplifier. Resources?
  136. DIY Novar Socket
  137. Hum pickup from line output transformers
  138. Photo of a JJ 300B Filaments!! Please! :)
  139. Super FU-29
  140. Questions about Tim Mellow 6C33C OTL
  141. James or Silk for EL36SE?
  142. Dead KT88
  143. MS 110B KT88 INTEGRATED AMPLIFIER
  144. The Mighty 6550...
  145. recomend me some EL34 PLEASE
  146. Adding tone controls
  147. TJ Full Music 2A3/CNE
  148. groove tubes for headphone amp
  149. IXYS LTSpice Models (or something equivalent?)
  150. Soviet 6p3s/6p3s-e
  151. A case of direct coupled cathode follower
  152. SE45 schematic monoblock to stereo help
  153. Heathkit Schematics & Manuals
  154. 211 tube amp problem Help
  155. Department of inapprehensible schematics
  156. How low can you go...?
  157. EL34/6L6 Screen reistors...
  158. 809, anyone played around with them?
  159. Skinny OTL
  160. Adjust drive and output level with one knob
  161. Help me rack some Gates Program Amps
  162. Switch Mode Heater Supply
  163. Pre Ampje
  164. Maida Regulator Digital Control
  165. Worried by 110v reading on 6.3v tap....
  166. Safety Alert - UK Yaqin users
  167. 27> EL34 (triode) > 300B
  168. Rockola juke box amp - unusual features
  169. 3.5 watt ECL82 Amp
  170. 12BH7 Headphone Amp
  171. White Cathode Follower Quandary
  172. help in aikido for sennheiser hd580
  173. Home brew more economical than an ST-35
  174. Modeling Pull-Push transformer in LTspice
  175. The Fisher 400-C "Fixer-upper"
  176. Power Transformer question/concern
  177. Nice little schematic drawing app w/ tube symbols
  178. best budget diy kit?
  179. Transconductance amplifier for headphones.
  180. El Cheapo information?
  181. Aikido 9-Pin Configuration
  182. Strange motorboating issue
  183. Lumley M120 Monoblocks - Need Manual, schematic or anything !!!
  184. Substituting higher wattage resistors
  185. cap coupling to interstage transformer or direct coupling?
  186. A question of feedback..
  187. Two Monoblocks "Dying" Within Days Of Each Other
  188. Russian 1Zh24B Pentods / design assistance.
  189. What Tubes for 5.8k PP transformers
  190. Problem with a power transformer.
  191. 300B OTL Preamp/Headphone Amp
  192. tantalum resistors
  193. 6BM8 in STC mode
  194. My Moscode again: What is the bias current?
  195. OTL WCF headphone amp build + awesome prototype material
  196. Type 42 single ended ideas
  197. Help with my Moscode 300 amp
  198. Thoughts on this volume potentiometer?
  199. Optimum load impedance for PCL85?
  200. Croatian triode Festival 2014.
  201. Old ekco tv transformers
  202. vacuum tube score.. what to do with
  203. Valve based disco mixer.
  204. Webcor ceramic phono input circuitry suggestions?
  205. Position of OPT windings
  206. sd2 seven pin??
  207. Help design a Small 250VDC PSU for tube preamp
  208. Bright Driver Tubes 12AU7, 12BH7, 5814...
  209. Question about using tube socket center hole for star ground
  210. Heathkit UA-2 clone project
  211. Schematic CAD Program
  212. Latest on the RH amps..
  213. Transformer design program
  214. 807 "Musicians Amplifier" help
  215. J.E. LABS PP2A3 POWER SUPPLY ?
  216. Mono Block Building Project
  217. EL34 CCS ideas
  218. Magnavox 8601-20
  219. wood/metal vs all-metal chassis
  220. Design data on dry battery tubes
  221. Differential tube with a gain stage 1178
  222. 6C4C tube ...Good to buy ?
  223. Including a C- winding on a filament transformer
  224. CINEMAG 15B TRANSFORMERS balanced>unbalanced
  225. Rebuilt Heathkit AA32 with hum on MAG PHONO input
  226. Electrolytic cap question
  227. Tube Socket ID
  228. JJ 5Y3S is too tall...need smaller tube
  229. Uniamp 2A3
  230. buzz noise from paraphase circuit
  231. Benefits of Enhanced Triode Connection
  232. Working out a valves load resistance?
  233. 813 Alternatives
  234. Help 6N6T pinout
  235. Very large parafeed cap
  236. Bright purple flash 6N1P
  237. Harman Kardon Citation II - rebuild questions
  238. Stoetkit junior mk2
  239. 1619 Push pull output stage
  240. Tube getter
  241. The sensation of the 21st Century. Galvanic SUPER HIGH END PP power for all types of
  242. Audible Illusions and 6922
  243. quick access tube amp protection
  244. Identifying Genalex KT66 matched pair question
  245. Hunting 100Hz noise in SRPP+ stage
  246. JJ ECC83S Biasing conditions
  247. Audiophiletalk - Dirt Cheap SE
  248. 12AL8 Head-Amp with UTC Output Transformer
  249. SET monoblocks?
  250. EL84 Push Pull design from left over parts

Content Relevant URLs by vBSEO 3.3.2