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. Working with constant current charts
  2. Hum and noise in small amp
  3. My project (6c33SET)
  4. EZ260A Grommes 260A Project
  5. 18A5 sound fine in triode mode ?
  6. 6GF5 sound fine in triode mode ?
  7. Muddy 6V6 Power Amp?
  8. GM 70 Schematic needed!
  9. tube simulatie models.
  10. building vacuum tubes... some questons
  11. Hot Rodded Dynaco ST-35 - Dynakit Parts Kit
  12. Fixed bias on small signal pentode
  13. Buffer preamplifier
  14. 7027a testing
  15. decade bank values for a plate current tester
  16. anyone know the dimensions of a dynakit st-70 pcb?
  17. Help on designing full DHT SET power amplifier
  18. dc coupled volume pot value
  19. 20W OTL with 6N5P, Opinions...
  20. Finding parts
  21. Tube's JLH hybrid solution
  22. Curtis Mathes Console / TV receiver
  23. Marantz 8b feedback circuit
  24. Noisy volume pot with some tubes but not others
  25. Found an Eico HF-86 for sale, is it worth it?
  26. Paco T-60 Tube Tester
  27. Aikido all in one heater issue
  28. Need a little help with Chinese tube Preamp
  29. Choke Loaded Const. Current Draw Amp
  30. 6550 SINGLE-ENDED AMPLIFIER
  31. Balancing pp driver stage
  32. P-P 6C33
  33. Need help with Cornet 2
  34. Sweet folly: a tube SMPS
  35. More articles for the Wireless World Archive
  36. Recommendations for a valve amp kit
  37. 2 watt amplifier
  38. 1AX7
  39. 2 x 6as7 -> u=?
  40. Help with transformer
  41. Building a mu-follower stage
  42. ecl11 - ecl86 replacement
  43. Please comment on this grounding scheme.
  44. A tube-preamp with DSP-DAC-Touchscreen-and Music Streaming...
  45. Microphone modification help
  46. Microphone modification help
  47. First time hearing an SET
  48. Rattle can a power transformer
  49. Need better RIAA circuit for my phono amp.
  50. Input volume pot wiring
  51. Constant current heating undervoltage
  52. Some tube info that I hope is helpful
  53. Toroidal output transormers
  54. cathode bypass on opt secondary
  55. Push Pull Powersupply Test Question?
  56. Recommandation please..
  57. My new humble thread
  58. KT88 single stage pp - cascode diff amp
  59. foot switch safety question
  60. Which KT88 Brand to Buy?Sso many to choose
  61. 12ax7 perfect bias point
  62. preamplifier/driver for 807
  63. Help with Quad II hum
  64. 18K audio note output transformer
  65. Small tube amp conversion help 6x4, 6AU6, 6AQ5
  66. Hybrid never see
  67. "Next to Last" PAS Project
  68. Power supply overload
  69. Home build 6L6 pp amp buzzing noise
  70. 807 monoblocks with big PSU
  71. SET amps and crossovers.....?
  72. Sockets for 6P41S
  73. 6dj8 phono amp
  74. Jolida Score!!!!
  75. voltage boost
  76. Swinging choke value in PSUD
  77. Hum Nirvana
  78. Plates glowing on my Fender Concert after blowing fuse
  79. This weekend's reading
  80. 6550-6550A-6550B-6550C - What are exactly Differences ??
  81. Interstage Transformer Questions
  82. Vacuum State FVP5A voltages
  83. can you help me out? Sencore TC114 tube tester
  84. Steve Bench's tube crossover - Help needed.
  85. transformer design equations
  86. Retrofit idea, need advice, 6L6SE guitar amp
  87. some misc schematics, manley, rotel
  88. What happened to my tube??
  89. Tube Preamp Question
  90. Schematic for Pilot SP215
  91. Screen current through cathode resistors
  92. Gyrator design
  93. Any tips for routing heaters on a PCB
  94. 6EZ5 as drop in replacement for 6V6 tube?
  95. RIAA Preamp and equalization 12AX7
  96. Correct hum mods?
  97. Push-Pull from Stereo SE amp
  98. how to select transformers.
  99. Ultrapath or parallel feed apps. for 7591 amps?
  100. PP-UL amp with KT88
  101. Reuse these sockets and tube choice question
  102. Need help understanding this circuit
  103. Need a little help with a power supply I designed.
  104. Which tube Rectifier is good enough for 5902 tube amp ?
  105. Schematic for Masco ME-8?
  106. Transformer Rattle & Hum issue - Dynakit ST-70
  107. pio coupling caps - damaged/used?
  108. 6EZ8 (and other triple triodes) help please!
  109. Akron, Ohio
  110. 6N6P Heater and earth wiring advice
  111. united transformer corporation
  112. Capacitive v. Inductive inter-stage coupling
  113. unused secondaries on SE opt?
  114. Marco Rodint coil building info needed
  115. Scott 222B Hum
  116. how to make audio output transformer
  117. 5842 Anyone?
  118. 813 SE build
  119. Aikido LV improved psu
  120. My first HiFi project
  121. B&O 608 tube amplifier
  122. Just designed a 300b amplifier....
  123. Anyone used C3g to drive GM70?
  124. Capacitors found, have you used these?
  125. I need your help!!!!!
  126. 12au7 600 ohm output
  127. new C3g/211PSE comments pls
  128. anyone know of a source for 12 pin+ connectors?
  129. Dynaco Mark IV Power Resistor
  130. Moondog with ac on gain & driver tubes?
  131. need help again on DIY Toccata MC Phono preamp
  132. Looking for analog Tube schematic for "analogmetric 1541a" DAC
  133. newbie needs help with tube inheritance
  134. 2A3 SETs with Edcor Iron
  135. What to do with this iron (originally from PP 7355)
  136. Just for everyone's amusement....
  137. beam tetrode calculations
  138. What are the differences between LC and CLC chokes
  139. gain and mid circuits
  140. Kay 503 Schematics?
  141. Transformer Data
  142. tube B 406 triode dick's cleo 4
  143. GE Snubber, High Current DC, and Switching Capacitors
  144. Russian EL84 - Many varieties
  145. Back From the Dead- A NOS Tube Story
  146. application for ccs/gyrator board from the groupbuy
  147. Building a tube radio
  148. Three more articles for the WW Archive
  149. Amplifier antics
  150. what about a tube makes it UL recommended
  151. 6as7 p-p with transformer phase-splitter
  152. Large power push pull output transformers, say 150W
  153. I need a schematic for a amp project
  154. Preamp resistors calculation for http://www.shine7.com
  155. Best replacement solid state rectifiers for a 400V 125 mA supply in a tube amp
  156. Dynakit PAS-2 Filament Voltage Question - replaced Selenium rectifier
  157. Vintage tubes
  158. Amp PSU standby and PA switching
  159. 245 tubes
  160. Vacuum tube clock radio
  161. First Project, need some help
  162. Graetz Scerzo Schematic
  163. simple se 2a3 amp help!!!!!
  164. 5bc3 rectifier
  165. Help me improve this PSU. (6c33 set, voltage doubler)
  166. Choke Loaded Driver Load Lines Question
  167. CCS and tube aging
  168. Tetra lives!!!!!
  169. Tube shops/supplies in Brisbane/Gold Coast
  170. AC VT25 filament?
  171. Let's show go on: Building Monster SE!
  172. Mystery 6AQ5A powered chassis?
  173. 6Y6G tube for low-voltage SE amplifier?
  174. Jolida gain and negative feedback?
  175. 1/2 of the tube for each channel?
  176. Problem with Legacy pentode driver stage
  177. 845 Operating Point
  178. Tube rectifiers
  179. D76 Inrush current limiter thermistor?
  180. New to Tubes? How to get the basics, read on..
  181. interstage tansformer impedence
  182. 2 PSU sharing the same Power transformer?
  183. Biasing amp
  184. CCS placement
  185. clueless on console
  186. 5E3 Build Problems Cont'd
  187. Popping in stepped volume control
  188. 6by5 CRC Values
  189. Is this do-able?
  190. PCB for Gary Pimm's CCS & SS Pentode
  191. EL86 Single Ended PP Power Amplifier
  192. Diyhifisupply Billies - dead OPTs?
  193. 6H30P-DR
  194. Tube AMP and stax headphones....
  195. soft start power supply for dynaco st-70
  196. The Telefunken EF86?
  197. Can you run parallel circuits from a rectifier?
  198. Mullard 5-20 with 6L6GC's?
  199. Adding balanced input to 6N1P tube.
  200. Partial feedback (anode grid) with cathode follower
  201. 4P1L as First gain stage or in Pre-Amp..?
  202. Advice on 6418 design requested
  203. Shorting jumpers for octal sockets
  204. Tube lineup in an Admiral y4302
  205. John Broskie MIA?
  206. Audio Research VT 100 MKII need help!!
  207. Help with AD30 PSU build
  208. Who was the Japanese Amp Guru?
  209. 6922 vs an ECC82.....a test.
  210. Triode connected 6LW6 for SE
  211. 12AD7???
  212. New Book Review
  213. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  214. looking for hi volt commercial power supplies
  215. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  216. ECC85
  217. Pioneer 304B fm/am reciever schematic
  218. ECC82 JJ Made in Slovak Republic!?
  219. Definition of matched
  220. Polycarbonate as coupling caps?
  221. pick tubes for tubecad unbalancer
  222. OPT for EL34
  223. 12v dc tube amp/pre high SQ
  224. Better than 12au7?
  225. Amps and 4-ohm loads
  226. What is the "best" tube amp / speaker / source you have ever used?
  227. 814 as Triode / Max. Ug2 voltage
  228. valves better than solid state?
  229. musical fidelity x10d clone
  230. Acrosound 7591A amp
  231. suggestions for simple amp wanted
  232. Wish you could nail down your copper wool holder?
  233. HELP- Pricing Genuine Genalex KT77's
  234. K120 on 6550/KT88/KT90 anyone tried???
  235. do tubes ever leak b+ into heaters?
  236. How can I use these high-current, low-inductance chokes?
  237. 6005w Q+introduction
  238. Sonic Frontiers Line 3 Increate the Output Voltage
  239. Dynaco ST-70 chassis
  240. Opinion on the scheme with the 12AX7!
  241. Fully Parametric Tube EQ (with gyrators)
  242. 600v snap-in electrolytics
  243. anyone knows of 6 channel tube amplier ?
  244. 6N6P SE idea
  245. EL84
  246. Long tails and current sources
  247. How to reduce gain in mu-follower?
  248. Chassis
  249. Single Ended Amplifier 6P43P
  250. 6C33C spacing

Content Relevant URLs by vBSEO 3.3.2