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

  1. Magnavox Console Speaker Impedances
  2. first tube amp
  3. Beam Triodes
  4. Winding output transformers
  5. Anyone Have a Schematic for Wavac MD300B?
  6. PushPull vs ParalelSE
  7. Painting transformer end bells
  8. all-octal schaded pp
  9. New Wood Chassis from Hammond
  10. Strange Noise From Amp
  11. Missing components
  12. Tube headphone amplifier.
  13. Emission - Double Triode
  14. Convergent Audio Technology - where is their Hompage?
  15. Mesh Plate
  16. Cathode follower question
  17. Power supply question
  18. Looking for a 866a powersupply schematic
  19. 211 or 845 project
  20. Modify Dynaco MKIII to use 6AR6s ?
  21. Yet another Dyna ST-70 Input Board
  22. Free Download Vacuum Tube Design Book
  23. driver stage for ppp 6550's
  24. power supply problem
  25. Positive/Negative Feedback
  26. Unholy Alliance Phono Amp
  27. Shrink a tube amp
  28. lampizator srpp help
  29. the secret of best preamplifier
  30. Any issues with adding a grounded power cord to a Heathkit IT-17 tube tester?
  31. HELP to ID push pull/Single Ende
  32. 12BH7,6414,and 12AT7 to drive EL34 better
  33. Testing Tube Amplifiers
  34. trade off higher HT current for lower filament current ?
  35. Any Russian analog of 12BY7 ?
  36. SV572-10 still being made?
  37. PP Output Transformer Testing Puzzle
  38. baby steps
  39. Partial FB: 2 SE + 1 PI = PP?
  40. G-807=807 SE or PP?
  41. 1Hz oscillation with CCS biased output valves
  42. Ultra-linear 6L6 output stage
  43. Transformer or capacitor coupling?
  44. Victor (JVC) Tube Amp MCM-200
  45. MiniWatt N3 problems, oscillation thumping and RF/motor problems.
  46. A2293 pins connection, help !!!
  47. Start-Up Delay for tube amp !
  48. Getting OPT in Japan?
  49. cathode follower tube buffer using 6n6p
  50. Buzz at output until tubes conduct
  51. I need help for amps.
  52. UL Connection results in higher distortion
  53. Header bypass Cap?
  54. DC heater large cap
  55. How to lower preamp output?
  56. Why use a pre amplifier
  57. DHT-buffered NOS-dac
  58. Microphonics 12AY7 v.s. 12AX7
  59. ECC99/2A3 interstage finished, but have one query
  60. Tube lovers in Germany?
  61. preamplifier
  62. Choosing grid leak resistor value -- partly subjective?
  63. What does the acronym "AMW" stand for?
  64. 6C33C distortion spectrum
  65. 6C33C OTL DC schematic needed
  66. help with identifying the cause of preamp problem
  67. Rosenblit 70w Mac amp
  68. Grounding scheme
  69. CC vs Shunt filament supply?
  70. Need opinions on boxing a dual mono line stage
  71. Lets settle the b+ on cold tubes issue!
  72. New 2A3 SET / Simple, but gentle sounding amplifier
  73. Magnavox Console Amp Chassis
  74. transformer identification
  75. 50Wrms audio amplifier
  76. 12B4 have a good sound ???
  77. almarro OPT question
  78. Best EL84pp kit??
  79. Clarion 6L6G Oscillator Amp.
  80. Did you hear an original tube sound?
  81. Designing an OTL / Circlotron
  82. Cayin A55t or AudioSpace AS-8i Mk.III
  83. filament voltage question
  84. 7236 vs 6AS7 ?
  85. Bias Circuit Calculation
  86. 6V6 Hum Issues
  87. Crossover co-axial
  88. Wurlitzer 6420 to audio amplifiers
  89. Advice on Parafeed Output Transformer
  90. mingda mc34ab mods?
  91. small and cheap OTL schematic needed
  92. ecl82 or ecl86 amplifier decision
  93. Well Here Goes... K16LS in Dynaco Chassis?
  94. Not too often you see one of those
  95. Sweet Peach vs Meng Yue EL84
  96. Attempt at giving back: 6L6GC SE amplifier
  97. Best Complete KT88 Amp Kit under $1K?
  98. Webcor Musicale OT puzzle
  99. Audio Research SP3a
  100. Preamp Conordīs with some malfunctioning
  101. Oscillating PSU above certain voltage
  102. B+ voltage load line question
  103. ming da tube amp smell
  104. Rebuilding my amp, would like some input.
  105. do any of these cv4024s seem genuine to you?
  106. Stupid question: EL34 tubes.
  107. PP with Unbalanced concertina = 2nd H?
  108. harmonic distortion
  109. Enhanced Tube's performance
  110. New GU50 SE: SRRP or Cascode for driver?
  111. Hivac XN11 tubes
  112. Conrad Johnson PV-10a hum. Any advice?
  113. Bob Carver's eye candy on eBay
  114. MFA Lumi started "motor-boating" today
  115. New GM70 tube with problem
  116. Interested in building together a 300B tube amp?
  117. cayin a-55t want to use el34
  118. Mc240
  119. Dht ?
  120. too much output impedance?
  121. College-proofing an ST-70 (aka autobias+ST-70)
  122. reverse polarity of the chinese goods?
  123. 6bg6 and 8k opt power amp project
  124. Need some calculation assist for a psu
  125. Baldwin Transformer Swap
  126. THD, s/n and IM noisy measurements
  127. Little dot 2+, got spark
  128. (INDIA) urgent - high-quality amp builders/techs in Delhi?
  129. What causes saturation in tubes?
  130. Plug and Play Power Supply
  131. GE 5814 and 12AUCIFTE
  132. Amplifier oscillates - advice sought
  133. 50s Amplifier
  134. power supply design question 832A amp
  135. Klimo power supply advice
  136. Earth Not Connected
  137. DC heater supply for phono pre
  138. Audio Note P2SE problem
  139. Aikido Transformers - Good Choice?
  140. Caps before or after MOSFET V-regulator
  141. Which capacitors should I replace?
  142. Testing Amplifiers
  143. Choosing choke valuein pre amp tube
  144. Supertriode with PNP transistors
  145. too much gain
  146. Lloyd's Vintage High Fidelity Audio Devices - both Tube and Solid State
  147. Cheap eBay "zoe_tsan" tube kits - worth anything?
  148. Bell Vintage High Fidelity Audio Devices - both Tube and Solid State
  149. Small Tube Amp with Hum
  150. tube rectifier question
  151. Unison Research S6 schematics
  152. vacuum tube amplifiers should be produced like this?
  153. 6d22s to 6cj3
  154. pot in tube preamp
  155. Mable Audio vs. Suppo audio sound quality
  156. swdfasdfsdf
  157. measuring heater voltage
  158. Need a circuit around these tubes.
  159. Single-Ended 13E1 amplifier
  160. Whats' the max allowable / reasonable ripple in SE amp?
  161. What amp kits are out there?
  162. ECC84/6N14P for audio
  163. PSU ignorant
  164. How to define a quality OT?
  165. Looking for some build advice
  166. ASC oil caps vs M-tube cap for ps
  167. SS CCS and distortion
  168. the valve with no markings
  169. Pentode AB1 design school???
  170. Capability of Sony/Tamradio SE Output Transformers
  171. my CELLINI triode amp
  172. 45-based SET -> Pass Labs F4
  173. Testing Amplifiers - Speaker or dummy load
  174. Quiet amp hums with signal source or input directly tied to star earth??
  175. amp output testing
  176. S5 Amp Comparison?
  177. How to Ground a Preamp PCB Board?
  178. RH807 / 6L6GC g2 issues
  179. 2010: Replacement for Black Gate WKZ 100uF+100uF 500V
  180. sunn solarus guitar amp
  181. Converting Dynaco ST70 Power Transformer for 12.6V
  182. Simple CF with 5687/6900/E182CC
  183. World Audio Design 5881 Schematic needed
  184. PP triode transformer load
  185. 6V6 PP load line
  186. Need help to under stand this 6n3 Kit from ebay
  187. Help:ampeg svt 2 pro 100v>>240v
  188. Blown left channel
  189. Tube preamp build help-heaters
  190. Medium Power SET, EL156 based
  191. Concertina Splitter question - Need help
  192. 6V6 amp - schematic options
  193. Lectron pa50+jh50
  194. 4pr60b valve
  195. Transformer phase splitter
  196. Help! ground hum
  197. Question regarding Leak Stereo 20 and 6SN7 line stage preamp
  198. Recommended upgrades for Yaqin Tube Buffer ?
  199. 6J5 or 6S4 mic amp?
  200. ST-70 build, ideas and advice
  201. Yaqin MC-100B Help Needed!
  202. Preamp Aikido : 6ax5GT,12au7,2c51
  203. Heater of tube
  204. R-Core Winders
  205. 1946 philco amp, tuner, record player
  206. otions for drawing tube schematics on Mac..?
  207. Push/Pull Plate Load Choke - how to figure Inductance?
  208. 6aw8-a tube question
  209. Newbie needs a point in the right direction
  210. Minimalist PL519 OTL?
  211. Telefunken schematics
  212. parallel pp EL84
  213. AD1 Operating Question
  214. 6П3С-Е Russian NOS: Gas Problem
  215. Favourite EL34 circuit
  216. Medium power SET with parallel OP tubes
  217. sds labs into Pas3
  218. Low voltage 6922 preamp...wanting a schematic
  219. Voltage Gain on Long Tailed Drivers
  220. Purpose of 5842 tube?!?
  221. MA XDSE KT88 vs YAQIN MC-100B KT88
  222. JBL Amplifier story
  223. Fender tweed pro-amp clone
  224. Recommended spacing for multiple 5AR4's
  225. Cap choices coupling
  226. Output transformer for PP EL34 source
  227. mini max pre
  228. use 2 ohm speakers
  229. Ask tube rect 5u4c and JJ caps
  230. Adding caps to prevent oscilation in AF 5687
  231. Williamson on EL84. Is it worth doing?
  232. CCS and regulated B+
  233. Garter cross-coupled feedback
  234. soundcard protection Z ???
  235. Using a CCS on SE Output Stage
  236. First amp build... help please!
  237. multiple independent grid biasing from 1 mosfet
  238. Eico HF-81 modification opinion
  239. 4K or 5K Output Transformer
  240. Noisy input on Michaelson & Austin TVA-1
  241. Precision Electronics S-35 help,
  242. Rogers Cadet 3 Problem
  243. Triode Electronics VS Hammond
  244. TRIODE OPERATION USING THE SCREEN GRIDS AS THE CONTROL GRID - this work ?
  245. Start up delay needed???
  246. Connecting a stereo amp as a mono-block
  247. HQ-DHT (All tube DHT amli) 26-45-2A3
  248. 24A tube in triode mode, help !!!
  249. Amperite Ballast
  250. Need super quiet 6.3V filament supply schematic

Content Relevant URLs by vBSEO 3.3.2