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

  1. Metal Can 6CA7s
  2. Bypassing B+ in PP amp
  3. Tube shunt regulator for phono amp
  4. Triplett tube tester help
  5. Motor run Caps Question
  6. speaker that can be driven by tube amp
  7. Which perf board?
  8. Looking for schematic/info for a Knight KN 3050 PA Amp
  9. Need help with volume control.
  10. Flame triodes!
  11. make OPT
  12. Tube GU50 made in Russia
  13. Expectations of new tube specs
  14. DC on preamp input
  15. We're up and going!
  16. Putting serial number on tubes
  17. Which of these tubes is best?
  18. Stepped attenuator resistor calculation software
  19. Help with PSU for tube DAC output stage
  20. single-tube (6GN8) amplifier?
  21. Dukane schematic needed
  22. Bloody pinouts!
  23. Testing 5651WA on the bench
  24. phase splitter concerns ?
  25. phono pre RIAA 2001
  26. Quick output transformer wiring question
  27. Can I.....
  28. Cathode FB P.P. Strange behaviour.
  29. Historic Valve Assembly Vids Mullard Content
  30. Unknown output impedance
  31. Any matching in 12AT7 sections? (SimpleSE)
  32. Over-voltage on heaters...
  33. Stray capacitance of CCS
  34. CCS Design for DHT Filaments
  35. coupling cap value help for tubelabSE
  36. YAQIN MC-10L to Klipsch B-3 Speakers
  37. Sonic effects of tubes
  38. Gubin Valve Stereo Amplifier Question
  39. 6J5 Shootout - which one's best?
  40. Chinese Tube Amps?
  41. 26 DHT users please comment on what you built & use.
  42. Guitar amp project report
  43. auricap Vs musicap (Another Cap Question)
  44. Help with splitter design for 7591 PP
  45. Question regarding PS ripple in guitar amps - TubeLab?
  46. Tron Seven
  47. blue glow on one channel
  48. Suitable Power Trans for 6gw8/6bm8/el84
  49. Dynaco Pas 3 Hiss from HV regulator
  50. PS Problem: How do I Reduce Voltage?
  51. Got the build itch again. 80w kt88
  52. lm317 CCS question
  53. LM334z
  54. Parafeeding a Tetrode
  55. Differential stage biasing choice
  56. Got an overshoot problem.
  57. Help! What could possibly be wrong?
  58. Noise - 6J5 - 71a -300B amp
  59. crude, simple and powerful PP-amplifier
  60. What's the appeal of type 80 rectifiers?
  61. Guitar amp layout second thoughts
  62. 6N7 PP amplifier
  63. 300 KW tube audio amplifire-modulator
  64. Weird amp on ebay
  65. which type of rubber cushion under transformers?
  66. 12at7 LTP CCS
  67. Which value of a potentiometer
  68. Strange circuit - heater hum opt feedback?
  69. Aikido question
  70. Tubelab SE diode substitute
  71. Copland CTA-402 Phono Section Comments
  72. modified sine wave power inverter
  73. Rebiasing my DSL-100
  74. My EL84 SE
  75. K-16LS kit Assembled and Working
  76. Claus Byrith 30W PP
  77. Aikido pre and class T amplifier ...for a newby
  78. Best replacement for Black Gate WKZ?
  79. DIY Jukebox!!
  80. Partial feedback confusion
  81. Anyone used the 7C7 loktal pentode?
  82. Is vacuumtubes.net still in business?
  83. Rectifier Tubes
  84. music angel kt88 tube amp schmetic needed
  85. Next project suggestions
  86. Unpotted Peerless 16309 OPT from Heath W5m
  87. 6au6 Cf
  88. Direct-Coupling Question
  89. Help on CCS PP differential driver stage for SE 845 amp
  90. I'm Looking for this Similar Schematic !
  91. ECL86 preamp critique please
  92. Low cost 6AV5 design questions (long)
  93. Got my tube spice models, and tubed CD player page back on the air
  94. Vsac 2008?
  95. How hot do Hammond chokes get?
  96. Transformer current question
  97. TubelabSE - best MOSFET choice?
  98. WTD: Reviewer/Writer For DIY Articles
  99. photomultiplier tube - what is this???
  100. Trace Elliot Tube replacment
  101. fun idea: cameras and tubes!
  102. Quicksilver
  103. EI-75 End Bells
  104. Svetlana vs. Winged C
  105. Tube Amp Links
  106. McMartin MA-20 mods
  107. Power-tube grid-leak bias
  108. Best/favorite CF NOS noval twin triode?
  109. How can I calculate voltage over cathode resistor?
  110. Grid bias with Class A SE ?
  111. QUADII with DHT
  112. My First Tube Amp
  113. RH84 vs Magnavox SE?
  114. Rectifier and amp heaters on one supply?
  115. OPT impedance vs. speaker
  116. Power Supply help
  117. Problem with Stealth clone (12A6)
  118. phono stage hiss
  119. Lafayette LT-100 and 6AQ8 tubes
  120. Input potentiometer selection
  121. VSAC 2008 Amp Class
  122. Searching for simple 12bh7/E80cc pre schematic
  123. filament AC vs DC
  124. Novice PS Question: Diode Dilemma
  125. Custom Power Transformer Supplier UK ?
  126. lowering AC heater voltage help?
  127. 60 hz hum, what causes those?
  128. Problem with my ST70 build
  129. S-5 16LS tube amp use with 8 ohm speakers
  130. Yaqin 300b
  131. I'm going in.....
  132. noisy rectifier tube
  133. Quad II Output transformer rewinding question
  134. screen-drive (g2 driven) plate curves spacing linear!
  135. Strange feedback method
  136. Trio W-45a Amp-
  137. Hammond Power Transformer Buzz...
  138. 6v6 push pull guitar amp schematic sought
  139. Tube DI Help, Please: Substitutions
  140. Harmon Kardon Galaxy BA-150
  141. Velleman K8010 monoblock tube amplifiers
  142. First Project Finished-Tubelab Simple SE
  143. My 6S19P Linestage
  144. EL34 recommendations
  145. Edcor CXPP100-MS-5K- anyone used this (or similar 100W) output transformer?
  146. Bypass 2x0B3 tube cap value ?
  147. EF80 vs EF86
  148. Decware MODEL SE84C-DIY
  149. ST35 voltages WAY too high!
  150. How Do "Heat Fins" Work In a Vacuum?
  151. Acrosound Ultra-Linear OT catalog
  152. Simple Questions: Diodes and Heaters
  153. Recommend an input stage triode please
  154. Copper patinization?
  155. V-m 560a
  156. Anybody dealt with high-endstore.com?
  157. Diodes On Rectifier Question
  158. Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
  159. looking for a website...
  160. Simple 45/2A3 schematic error?
  161. Plate load for push-pull
  162. Hybrid regulator
  163. Hybrid Graetz Bridge
  164. JCM 900 100 Watt Power Trans Specs..
  165. My first amplifier - 6n3c-E
  166. Power supply problem
  167. Grid choke as I/V?
  168. Hammond PR20
  169. 6JN6 screen-drive (g2 driven) plate curves?
  170. Another compactron PP output
  171. 6922 transformer coupled
  172. Beam Deflection Tube Limiter
  173. 6LW6 bias points
  174. Dynaco SCA-35 or Sherwood S5000 iV
  175. SE 6550 class project (continued)
  176. gibson amp lp JR
  177. EL821 / 6CH6 triode curves?
  178. Ground wire adds hum to Harmony H-400A AC/DC amp
  179. "magic" phase splitter for SimpleP-P
  180. Harmon Kardon tube amp kit testing
  181. Did I hurt this capacitor?
  182. (newb) Why no white (-) leads on power trafo
  183. Ruined transformer?
  184. My Tabor Clone is finished.
  185. first build 6em7 and it works
  186. Cleaning up baked enamel/painted finishes
  187. panel meters
  188. Highs roll off
  189. scratch build EAR834p
  190. Silvertone Organ Amp
  191. El156se
  192. One more hybrid idea
  193. Can Anyone figure this?
  194. "Mighty Mite" Single Ended Amplifier
  195. old question - lost answer 6AS7 SE amp
  196. My KT88 SE project
  197. Motorola OPT
  198. Weird Input transformer hum.
  199. cascode vs asymmetrical cathode coupled
  200. music angel 845 SET
  201. Help! My amp stopped singing...
  202. LTP CCS IXYS with 10m45s opinions
  203. Boozhound Choke Tail Pair for HiFi
  204. Bass guitar amp...
  205. 5718 subminiture tube?
  206. fixed bias for push pull tube amps
  207. EC86 and phono
  208. Power Transformer mystery lead....
  209. Bias measurements 6L6
  210. 0A3 Light
  211. Equivalent to Tango NC-10 IT
  212. Ammeter wiring?
  213. Highest Practical Primary Z in OPT?
  214. Ampex 6v6 PP Modifications
  215. Variability of RIAA eq with tube characteristics?
  216. 807/350B/6L6 PP amps PSU ?
  217. Need Help For Tube Amp
  218. ECC83 300B Loftin White amp
  219. Hashimoto and the wonderful 45
  220. Capacitor identification–old PIO?
  221. Heathkit variac
  222. E80L pentode mode as driver?
  223. Transformer repair
  224. How many ga for chassis wire?
  225. 807 Guitar Amplifier
  226. I want to MOD - help?
  227. What About Beam Deflection Tubes?
  228. Capacitor
  229. Placement of Ultralinear Tap On Homemade Transformer
  230. Differential stage with CCS in cathode
  231. Directly heated Cathode/insulation question
  232. "Dirt Cheap SE" 6BM8 spud amp
  233. isolation transformer won't supply filiments - 1968 Harmony H400A tube guitar amp
  234. Single-end Power amp with tubes
  235. Input pot question
  236. Need help putting 6Z4 into PSU Designer
  237. SimpleSE Under Chassis Mounting
  238. Bias methods?
  239. Aikido and SE KT88
  240. Built this pre amp today!
  241. Mystery tube in a Fisher FM-90X - V50,064
  242. Switch contacts for HV supply
  243. The First Sound Recording - we can hear it finally
  244. RCA made in Japan???????
  245. 6V6GT in the SimpleSE
  246. trimmings for amp project
  247. Tube Preamp Hybrid new builder, lots of question!
  248. Chinese mini bias pots
  249. GU-50, GM70 and KT88
  250. Please recommend me an amplifier design.

Content Relevant URLs by vBSEO 3.3.2