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. Need a kit ??
  2. Edcor XSM10K/15K like intestage in tube SE ?
  3. Does anyone know of an LTSpice model for 12B4?
  4. where to order V-Cap ?
  5. Input Volume Pot
  6. Red Army Power-amp
  7. Cloning a HF-60
  8. Michaelson & Austin TVA-1 info
  9. analyze a circuit...quiescence current and R-Load
  10. how to calculate SE Coupling Cap Voltage ?
  11. Tubelab Simple SE Rectifier Problem?
  12. Mullard ECC88
  13. Engineering vs tube rolling
  14. Diode Peak working voltage ?
  15. Help wanted; combining topologies to "new" 807 PPP design ?
  16. Tubelab Simple SE with two Transformers - Centertaps?
  17. Hybrid Amp
  18. transformer information need help
  19. Replacing a cathode resistor with a CCS
  20. DC offset and relays
  21. Sourcing JJ 300B tubes
  22. EICO HF-12 Iron - Use in Guitar Amp?
  23. Decware Vs Rogue Audio
  24. Global Feedback on Mikael's KT88SE
  25. Generating big voltage swings without 'iron'
  26. 6AS7G Grid Voltage ??
  27. Next project 6EM7
  28. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  29. What to replace these caps with?
  30. 5691 plate value ratings
  31. Bussiness trip to Singapore
  32. Paco mike tube amp
  33. Emergency help with Wes' amp
  34. 2A3 without cathode bypass cap???
  35. Best way to burn-in my new SE xfrmers on the bench?
  36. tubelabse pt wiring
  37. Need help with my ST70
  38. 6sn7 direct coupled and transformer coupled
  39. Hickok 605A Test 6DJ8
  40. Grounded Grid Preamp
  41. Beginner WLTM fixer of 300B hum...
  42. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  43. How to figure gain on split-load with positive feedback?
  44. Mikaels KT88SE & VTV Octal Linestage
  45. idiot needs help making sense of funny squigles - Filmosound
  46. Custom Transformer?
  47. How are this schematic ?
  48. Need help with a Tube preamp Kit (6Z4, 6N3)
  49. data sheets for 7239 and 8068
  50. John Swenson's New BDT preamp
  51. no coupling caps
  52. 6SN7GT brand
  53. tube voltage regulator error amp
  54. driving 845's
  55. Just ordered a Korg EMX-1
  56. Maida for Screen Supply
  57. cracked el34 -> replacement squeals
  58. SimpleSE goes Push Pull
  59. Possibly defective Mullard 12AT7?
  60. Basic measurement question re: shorts
  61. EL84 DC 10Y Project
  62. TubeCad Journal FET CCS
  63. russian tube
  64. Source for #81 light bulb for Hickok Fuse
  65. pchw 's tube hybrid amp accurian info
  66. 3c24 se amp
  67. schematic of firstsoundaudio pre amp
  68. 300b-98c mesh bias
  69. 6SN7 coin base tubes
  70. tube rectifiers and electrolytic reforming w/ variac
  71. I'm running my leak stereo 20 single ended. WHAT???
  72. Varnish on old transformer
  73. SE parallel output questions
  74. Darius Loftin White explained
  75. best capacitor
  76. New Sensor's "Mullard" EL34 reissue?
  77. Best Way to Control Plate Voltage?
  78. Any Mods for a Noisy Leak Point one Stereo?
  79. tubes for 87db spendor
  80. 4v for rectifier tube
  81. Need help rebuilding old PA amplifier!
  82. inverted?
  83. Old Tube Radio - Restoration Project
  84. quick - need parts retailers Wash DC area
  85. H&K Tubeman Circuit Questions (added schematics!)
  86. Marshalls: Why did 600V B+ become 470V?
  87. Raising filament winding above cathode with a EZ81 in the circuit OK?
  88. Problem with Beard Audio
  89. 100K pot in a preamp?
  90. Motor Run Capacitor
  91. Power transformer for 6883B tube uses?
  92. EAGLE PCB help with socket on it
  93. Rca Mi-38188
  94. C- Battery Supply
  95. Seperating Preamp from Amp in Integrated Amps
  96. Wind my own output transformer for 100w bass amp
  97. Please help me in getting rid of the buzz.
  98. Tube Phono stage dilema
  99. Grounding with single tap secondary...
  100. VTL - Manley stereo 75
  101. What about KT100 in SE ?
  102. Tube amplifier kit needed to drive low efficiency speaker
  103. feeling very pleased with myself
  104. Quicksilver Retube
  105. My Totem Arro 4 ohm load on KT-88 based amp
  106. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  107. for fans of the EL38 - the E3375
  108. 811a Opt
  109. Guitar amp for Wes is running!
  110. Pure class-A or class AB?
  111. 12B4 PP Full Differential Amp Notion
  112. My opinion on Audio Note M10 schematic - Japan version
  113. B&K 650 tubecharts
  114. Help, I need your advice - What Next?
  115. Sloppy, Unreadable, Childlike schematics
  116. Anybody going to tomorrow's NVCF fair in Leamington?
  117. Randall RGT 100 Amp Problem
  118. Pete's SE E-Linear
  119. 0A2 or 0D3 ?
  120. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  121. LTP feedback
  122. Need help with my super six...
  123. EL509 as a CF
  124. SE Diode
  125. 6FD7, 6BM8 or other
  126. My OLD Project....... cheap tube audio project!!!
  127. tube noise
  128. Fisher 400 questions
  129. RL12P35 amplifier
  130. 6AS7 ppp
  131. 6j5 dc coupled to 12b4a as 2a3 driver
  132. '81 Twin problems
  133. The sound of different EL34īs.
  134. Output transformer and FB
  135. Triode curves for 6AU5
  136. 26/el-84 amp possible..?
  137. Vaic 52B monos
  138. Hour Meter for a Tube Amp..
  139. volume pot replacement
  140. Any Ampeg SVT-II (non-pro) schematics???
  141. Ampex 600
  142. Tubing Testing...how are these numbers?
  143. No-R No-C Power Supply
  144. Are my Speakers efficient enough for my Amp?
  145. doesn't sound quite right
  146. 6DJ8 alternates?
  147. Is this the dumbest question?
  148. Fuse between B+ and output transformer?
  149. Telefunken Double Label Error...Ever seen this?
  150. 300B Summer Build Question
  151. 1,25kW tube amplifier/modulator
  152. 12sn7 heater-cathode voltage
  153. Toroidal output transformers with screen drive- why not?
  154. Help With 6v6 Spice Model
  155. Different 5AR4's have different voltages and warm up time.
  156. Edcor OPT in S5 Electronics K-16LS kit?
  157. SRPP Powersupply, replace R with choke ?
  158. First tube amp
  159. Best low-signal direct heated triodes?
  160. 25-position switched attenuator using a pair of 5-position switches?
  161. Help with dead Jadis Defy7 Amp
  162. Bring test points to chassis - Tubelab
  163. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  164. Remote control for integrated tube amp
  165. EL34 pp "fixed" bias is wandering
  166. US sources Russian Surplus
  167. 6550 SE class project (continued)
  168. Convert RCA tuner/pre to high perf AM only
  169. Metal Can 6CA7s
  170. Bypassing B+ in PP amp
  171. Tube shunt regulator for phono amp
  172. Triplett tube tester help
  173. Motor run Caps Question
  174. speaker that can be driven by tube amp
  175. Which perf board?
  176. Looking for schematic/info for a Knight KN 3050 PA Amp
  177. Need help with volume control.
  178. Flame triodes!
  179. make OPT
  180. Tube GU50 made in Russia
  181. Expectations of new tube specs
  182. DC on preamp input
  183. We're up and going!
  184. Putting serial number on tubes
  185. Which of these tubes is best?
  186. Stepped attenuator resistor calculation software
  187. Help with PSU for tube DAC output stage
  188. single-tube (6GN8) amplifier?
  189. Dukane schematic needed
  190. Bloody pinouts!
  191. Testing 5651WA on the bench
  192. phase splitter concerns ?
  193. phono pre RIAA 2001
  194. Quick output transformer wiring question
  195. Can I.....
  196. Cathode FB P.P. Strange behaviour.
  197. Historic Valve Assembly Vids Mullard Content
  198. Unknown output impedance
  199. Any matching in 12AT7 sections? (SimpleSE)
  200. Over-voltage on heaters...
  201. Stray capacitance of CCS
  202. CCS Design for DHT Filaments
  203. coupling cap value help for tubelabSE
  204. YAQIN MC-10L to Klipsch B-3 Speakers
  205. Sonic effects of tubes
  206. Gubin Valve Stereo Amplifier Question
  207. 6J5 Shootout - which one's best?
  208. Chinese Tube Amps?
  209. 26 DHT users please comment on what you built & use.
  210. Guitar amp project report
  211. auricap Vs musicap (Another Cap Question)
  212. Help with splitter design for 7591 PP
  213. Question regarding PS ripple in guitar amps - TubeLab?
  214. Tron Seven
  215. blue glow on one channel
  216. Suitable Power Trans for 6gw8/6bm8/el84
  217. Dynaco Pas 3 Hiss from HV regulator
  218. PS Problem: How do I Reduce Voltage?
  219. Got the build itch again. 80w kt88
  220. lm317 CCS question
  221. LM334z
  222. Parafeeding a Tetrode
  223. Differential stage biasing choice
  224. Got an overshoot problem.
  225. Help! What could possibly be wrong?
  226. Noise - 6J5 - 71a -300B amp
  227. crude, simple and powerful PP-amplifier
  228. What's the appeal of type 80 rectifiers?
  229. Guitar amp layout second thoughts
  230. 6N7 PP amplifier
  231. 300 KW tube audio amplifire-modulator
  232. Weird amp on ebay
  233. which type of rubber cushion under transformers?
  234. 12at7 LTP CCS
  235. Which value of a potentiometer
  236. Strange circuit - heater hum opt feedback?
  237. Aikido question
  238. Tubelab SE diode substitute
  239. Copland CTA-402 Phono Section Comments
  240. modified sine wave power inverter
  241. Rebiasing my DSL-100
  242. My EL84 SE
  243. K-16LS kit Assembled and Working
  244. Claus Byrith 30W PP
  245. Aikido pre and class T amplifier ...for a newby
  246. Best replacement for Black Gate WKZ?
  247. DIY Jukebox!!
  248. Partial feedback confusion
  249. Anyone used the 7C7 loktal pentode?
  250. Is vacuumtubes.net still in business?

Content Relevant URLs by vBSEO 3.3.2