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

  1. Transformers Specs for a 2x KT88 Amp
  2. 805 Positive or Negative Grid
  3. Point To Point, 100 percent, No Kit
  4. More line loads etc
  5. B300 C120 rectifier replacement.
  6. Triode simulation/emulation with solid state
  7. What is the driver circuit here?
  8. Dynaco Mark III
  9. ReCap- Heathkit AA-151 Help
  10. Hammond Chassis?
  11. How about an IXCP10M90 as a FETRON
  12. PUSH PULL SE ???
  13. More load lines...
  14. 7193/2C22: wich brand's the best?
  15. Bumed out over this Setchell Carlson
  16. Looking for Electron flow diagram
  17. Why Only Automatic/Semi-Automatic Bias?
  18. Audio Note M-Zero preamp
  19. Load lines. What?
  20. Preamp - pop on channel change
  21. Just for interest.
  22. 813 push-pull output 250W tube amp
  23. What sort of resistors are fine to use in tube amps?
  24. How Not To Pack DHTs For Postal Shipment
  25. Help me ID this trafo and tubes..
  26. Full PSE Amp /only 6E5P/
  27. ATH90
  28. Corroded valve pins
  29. Power supply advice needed
  30. Big Capacitors in PSU
  31. 6CD6G Tube amp
  32. Removal of Cathode Follower in JE Labs Circuit
  33. Q: Cascaded Transformers, S&B102+LL7903
  34. Threshold dac 1e possible modd
  35. Need Help with PSVANE 6CA7-T
  36. Why kind of Vacuun tube is the Tung-Sol TS 930 ??
  37. Magnetic Ballast (Sylvania) MB2 x 40/120 RS
  38. Recommendations & Budget for DIY Tube Amp kit?
  39. Recommend a good plate choke for 5842 tube
  40. Recomendations for SE 6AQ5 Schematics?
  41. ST35 Phase Splitter
  42. german console pull recap Project - help needed
  43. 6B4G Monkey help
  44. These transformers can be used for EL84 SE?
  45. 300B...Ebay or DIY??
  46. Higher gain twin triode!
  47. ARC V70 bias
  48. 70v transformers explored.
  49. Are these caps stuffed ?
  50. Anyone recognizes this amp ?
  51. What is Simplest and Best 6550 PP What is Simplest and Best 6L6 PP circuit? (PK)
  52. My tube differential amplifier
  53. Helping a friend build a tube headphone amp.
  54. Tango XE-20S, tube option
  55. -follower with mosfet... how stable ?
  56. 5k or 2.5k for 6s45p
  57. minor hum problem
  58. Help to choose budget Tube Amp....
  59. Vao
  60. Help with tube-rolling 300b Ming-Da amp?
  61. EF184 pins 1 and 3
  62. aikido pre (5687 all in one) HUMM!!
  63. Question about tube datasheets
  64. EL84 "typical" amplifier
  65. Packing heat.
  66. Current rating for power transformer.
  67. Pentode Odd Behavior
  68. Lower Screen Voltage KT88, choke input + Cap input supply
  69. tannoy line trans
  70. Hi Gain Inverter for a PP amp
  71. Help looking for a project
  72. Dynaco MkIII bias flutter/stability...
  73. grid leak resistor?
  74. 16LS Stereo Tube Amplifier and how to connect to Baxandall Tube stereo tone control
  75. Fisher 800-C blown fuse
  76. testing 300B on Hickok 539B/C
  77. cathode bias imbalance
  78. DIY M60 OTL Power Amplifiers
  79. Invisible gain...Aikido content
  80. Vacuum Tube Spice Models
  81. Tamura interstages
  82. Jolida 502/302b power transformer.
  83. Anyone used high voltage MKP1848 caps
  84. Bogen mo-200
  85. Phono Circuit Noise Factor
  86. Input impedance of this headphone amplifier ?
  87. D3a preamp.
  88. Newbie needs advice about DIY project please!
  89. PSUD and Off load Voltage
  90. Help! AVO CT-160 Meltdown
  91. Groovewatt-Valve RIAA Phono Preamp?
  92. Mullard EL84 Reissue?
  93. Push Pull amp power supply question
  94. Aikido all in one 5687 tube pre / louder in right Channel
  95. AUDIO RESEARCH SP-6B TUBE AMPLIFIER
  96. Tube Amp
  97. Preamp Pentode Screen Voltage and Gain
  98. AUDIBLE iLLUSION m3A
  99. What "Class" amp is this?
  100. DC coupling
  101. DuKane 1A831
  102. Thump sound at turn off of a power amp
  103. DHT AC heating 120hz phase canceling
  104. REVOX Model 40 amp. Need some hand holding please.
  105. heater imbalance fixable?
  106. Headphone amp
  107. Speech Amp for Modulator
  108. 2.1 channel el84 amp help
  109. Identify PC board in little amp...
  110. dcpp vs sse vs spp? First build
  111. Spice model for GU50 (LT-Spice)
  112. Need schematic of Preamplifier AM 1065
  113. My Journey to build Tube power amplifier B300 SE
  114. Kondo M77
  115. tube datasheet gm
  116. xiang sheng best valves
  117. 6CN6/EL38 Replacement
  118. 4P55
  119. Possible or way to complicated?
  120. Jeff korneff SET 45
  121. Hickok 536 Calibration Procedure?
  122. P2p layout
  123. Heating tubes off mains voltage
  124. EL84 as preamp tube?
  125. Claus Byrith 4-30 PP with KT66
  126. biasing confusion
  127. Bogen HE-10 question
  128. Golden Tube Audio SE-100
  129. Nearing Conclusion of Line/Phono Project
  130. Bias Supply For Citation V?
  131. Tube Integrated Amp
  132. Help needed about a quad FM2 RF
  133. 21jv6 tube datasheet
  134. Interstage transformer theoretical phase change?
  135. Bootstrapping a high pass filter
  136. Help with hybrid Aikido amp! Suggestions please
  137. Need help with a Curcio Daniel 1
  138. Audio Tubes used in Industrial equipment?
  139. Hammond H1 Amp
  140. CCS assisted small signal UL pentode
  141. Vox AC50 output transformer rewind
  142. Dynaco ST35 B+
  143. Simple Tube Amp
  144. Portable tube amplifier
  145. Using the heater supply to get a DC source
  146. phono/aux switching problem
  147. What is the best EF86 in production at the moment
  148. 12AX7 / 12AT7 Mu Follower Phono
  149. Kreisler Stereo 6 speaker impedance
  150. A serviceable life.....
  151. TV 7 DU Tube info
  152. Twinings Tea Transformer Covers
  153. ECC88 with 12V heaters
  154. CXhange opa 627ap for an audio gd moon ?
  155. PP-EL34/6550/EL-PL504 or KT88 Bal. innput
  156. fatman itube mk1 sounds bad
  157. Chinese FD-71 tube is the russian GK-71 ?
  158. Leak stereo 20 diagnosis
  159. VTL
  160. Looking for tubed MC pre-pre
  161. Correct wiring types
  162. Couplates
  163. Op-Amp Like Line Preamp
  164. SE GU-50/6CB6 Pentode Design
  165. Pioneer SX34
  166. About metal film resistor in a tube tuner
  167. Looking for 52dBs or more MM phono
  168. Winter is coming... Time to start GM70 SE parafeed amp
  169. Doug Self: Wireless World Magazine Article Archive
  170. Relay short circuit
  171. EL34 PP oscillating
  172. Dynaco switchable diode/tube rec and driver tube mode
  173. CCS into a VR with Interstage question
  174. 6SN7-6V6x2 DC coupled 2 stage with stacked supplies
  175. Rectifier and DC filtering relationship question
  176. Class A2 6JD5 Curves
  177. Motorola HS-839 Amp problem
  178. Active valve monitors?
  179. Did I get this load calculation right?
  180. Convergent SL1 original schematic
  181. Bleed down resistor
  182. How do I calculate resistor value in this schematic?
  183. Easy question about tube data sheet
  184. Tube regulator question
  185. Tube amp build for an 1st timer.
  186. Full music 101d input tube/valve
  187. EZ80 Voltage Question
  188. What the heck is this? Bulb?
  189. Audio Note Kit 1 Upgrade
  190. Will this work? (EL34 PP)
  191. Anthem 1 intergrated amp
  192. Tubes and the sun?
  193. Two triodes cascaded cathode follower?
  194. HIRAGA PREAMP PHONO + line
  195. OB2WA Radioactive???
  196. 9 pin tube socket pcb boards with screw terminals
  197. Hai I need a little help on designing a power supply
  198. Tesla E83CC Frame Grid Tube Purchase - Legitimate Production or Fakes?
  199. Cleaning Up the Noise + Selector Switch Anomalie
  200. first tube preamp
  201. Rescuing a vessel : 1964 HICKOK 539C tube tester
  202. Dynaco Feedback
  203. Mundorf Silver Oil in hot 300B tube amplifier !!
  204. MULLARD 5-20 build with mods
  205. Choke loaded driver with small opt?
  206. Preamp Tube Bias and feedback
  207. Capacitor replacement option
  208. New EL84 SE Amp PCB: The u-SE
  209. Question about Amp Theory
  210. Help needed for modifying DAC-opamp-tube circuit
  211. best way to start with tube amps
  212. Damper diode between C1 and L1
  213. Question about 'near' zero volt bias for low level stages
  214. Filmosound 179 - Should I even bother?
  215. Newbie question
  216. I think I know how it works, but can I get some help? (OddWatt PP)
  217. kt150
  218. As anyone considered black oxide???
  219. OTL question
  220. Headphone amp/preamp project.
  221. Comments or suggestions on this schematic?
  222. Twin Conn Organ 7868 Rebuild
  223. Favorite PP 6550 schematic?
  224. DECWARE Z BOX SCHEMATIC
  225. 6V6
  226. Need suggestion for eliminating noise from aluminum cover
  227. Kuba Serenade Stereo Console question.
  228. Help with tube interchangeability
  229. 6sn7(12au7)-6v6-300b
  230. Westinghouse tube amp MODEL V2508, conversion
  231. Voltage on the chassis, bad xformer?
  232. TubeCad blues...
  233. OPT as PSU filter???
  234. Tube Plate Voltage Timing
  235. Transformer grounding
  236. Two questions concerning bleed resistors
  237. Choke ratings and resistor values in choke input supply?
  238. Novar Spud :: A $200 sweep tube Spud with PCB
  239. Mid 50s 250/500/1000W Valve amp needs some repairs......
  240. I want to learn tubes and set up a workstation
  241. Pre amp wire up__new
  242. allied knight / rauland borg schematic needed
  243. Rollable Tubes
  244. n00b - Leave out the LEDs??
  245. Aikido 5687 all in one kit
  246. 6P13S - WHAT TO DO WITH
  247. el84 set amp for 90db-8ohm speaker?
  248. My first cap coupled 2 stage
  249. Dodd Buffer Tube Rolling?
  250. Lowest THD Tube Design Possible? (Need for a class, I realize it doesn't matter)

Content Relevant URLs by vBSEO 3.3.2