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 99 100 101 102

  1. Which Tube amplifier should I build first?
  2. Sound Practices Magazines, Complete Set 98% perfect
  3. 6L6GC in Push Pull Class A - how much power out?
  4. ECC83 DC Heater Supply - without CT
  5. PPP EL84 monoblocs: i knew then what i know now...
  6. zener, voltage devider or 02A
  7. DHT heater current draw - how fast?
  8. Rca sa752
  9. Audio Research and Octal Pre's
  10. Scott 299D
  11. Unison Smart 845 big problem
  12. Need help with driver idea for 845 amp - have a few ideas
  13. Input impedance on cathode follower stage?
  14. Picked up a box of tubes for $5.. What tubes are usable?
  15. Need help on potentiometer.
  16. A Raven preamp (mk2) finished
  17. need help searching for ground
  18. Pre-amp transformer output
  19. Boyuu EL34 A9 Tube Amp
  20. Hybrid 15W, want feedback - work in-progress
  21. PT from scratch for 100 W Marshall 2555 Silver Jubilee - advices and comments ...
  22. SP12 and PH12 Pre and Phono from Vacuum Tube Audio
  23. Which tube amp for Telefunken-tlx3 loudspeakers?
  24. Burned up a tube - want to be sure I know why
  25. Output Transformer Windings in parallel
  26. New tube tech from Korg
  27. Got some PX4 valves from an old radiogram
  28. At the start: Triodedick´s Monobill Classic KT88 Monos
  29. Choose your harmonic distribution: which sound better?
  30. Recommended HT current limit for old stock power transformers
  31. preamp circuit
  32. Low impedance headphone amp
  33. "Earthing" in DIY tube preamps
  34. Tube amp help
  35. How to draw a dynamic load line for cathode bypass triode like 12AX7
  36. Common Grid design
  37. 6AW8-A
  38. Push pull amp without GNFB
  39. No filament voltage
  40. Selecting Component Values for Simple Current-Feedback Amplifier
  41. 4 Blown Soft Recovery Diodes...Are TV Damper Tubes more Reliable?
  42. Just got a nice EL84 based receiver
  43. Is there any good current Production 6550s?
  44. Building the Damn Good 300B
  45. convert trashed kolster k20 into tube amp?
  46. Junkbox Hero
  47. KT150 curves by Sofia
  48. My new EL84 Amp
  49. 1955 Bogen J330 Mic Input Problem
  50. parallel el84 output pp. shared coupling caps?
  51. Will a Western Electric 422A substitute for a 5Y3?
  52. Question for a moderator
  53. bottlehead quickie schematic
  54. RCA 6146B sub for 807 or 6L6?
  55. Leak monoblock hum
  56. Eico 2036
  57. Heathkit iT-12 signal tracer to much gain??
  58. Valve Monoblocks - am I being realistic?
  59. Aikido Headphone Amp and PS1 Power supply
  60. Transforming a triode into a pentode?
  61. New to amps - Long-tail pair and heater hum
  62. Experimenting with the Aikido 12Vac kit
  63. Strategies for Implementing Negative Feedback in a 12ax7 Line Amplifier
  64. Output Transformer Impedances
  65. PP 6l6 class ab...advice needed
  66. 300B
  67. 12AX7 EL34B TUBE AMPLIFIER
  68. UK info please
  69. PAS 2/3 RIAA Modification
  70. My Homage to the Earmax Headphone Amp
  71. Aikio Line Stage
  72. Lite Audio LS 58 schematic
  73. Lite Audio LS 58 schematic
  74. Love those triodes
  75. Differential Pair with negative feedback
  76. Quad II Eighty Schematic?
  77. Adventures with Aikido
  78. Beard BB 100 and Beard A35
  79. Noob is about to press the BIN button and buy a Chinese tube amp kit. Save me/ help?
  80. Ebay Kit EL34 6n9P 5Z3P Build Thread.
  81. Sakuma 46 / 801A Circuit
  82. Tube Manufacturing at Expo-Pul
  83. Philips EL6410, how does it sound?
  84. tube amp power help
  85. Video from the Czech Tesla Tube factory
  86. Alans' rantings
  87. 3 x 3 Tube amp 30 watts
  88. Maximum allowed capacitance after gas rectifiers
  89. PSUD2 rectifiers list
  90. EL34 amplifier with these transformers
  91. Aikido Octal Dual Mono for Dummies... Help me.
  92. Monster Trans or Really Good Doorstop?
  93. The correct way to wire DC filaments 3B7 DHT
  94. Haller Circuit Problems
  95. Need recommendation for VERY basic amp project
  96. Recommendation on tube buffer?
  97. For Your Consideration: Unity Coupled Plitron Amp, No Bootstrapped Driver, No GNF
  98. Tango Transformers - any unique push pull circuits?
  99. newbe at designing tube amp
  100. Need help with microphone preamp.
  101. Trouble shooting vintage Harman Kardon A250
  102. Coating on Hammond Power Transformer
  103. Small tube amp for PC
  104. CCS dissipation
  105. 6SL7 - grid stopper values
  106. HELP - Laying out footprint for 9 pin tube socket
  107. Telefunken Magnetophon 104 - Keep or strip?
  108. Transformer rewinding or repair needed.
  109. Sun Audio in the USA?
  110. Wyetech Opal 6SN7 tube preamp, any DIY kit sound even close?
  111. KBG capacitors
  112. Praise for the 6N6G
  113. DHT equivalent to 12AT7?
  114. Why high voltage in coupling caps?
  115. BIAS Consonance M800SE
  116. SE ECC83 - EL 84 - EZ 81 - 1964 !
  117. Name That Design!!
  118. Distortion expected in SE DC coupled 26/45 amp
  119. One Channel is Louder than the other on my Tube Phono Pre
  120. Need a Zobel Network (or RC shunt) in tube amplifier?
  121. Aikido 12VAC Help needed
  122. Novarria TU-30 output transformer
  123. Question on Schematic
  124. CJ PV-10A
  125. Mcintosh C2200 ReCap
  126. simple tube amp for music
  127. SE Parafeed Signal Return ?
  128. RCA VC274
  129. Heathkit w5
  130. tube rectifier for 1000v AC
  131. New Tubes For Peavey Valveking VK100
  132. Tone Control Intercept Point on TU 8200
  133. Help with transformer and power switch wiring
  134. Mullard 5-20 iron
  135. Hard data on HP928
  136. Glassware Audio
  137. 5U4G problem
  138. Schematic för mono el84 SE wanted
  139. qualtek power module
  140. Low Static Hum Issue
  141. Look over my whacko schematic?
  142. PSU inrush current
  143. Heathkit A7 Output transformer
  144. THose lovely triodes
  145. Just picked up a shoebox of tubes from Craigslist
  146. Lower the primary impedance of the OPT to reduce distortion?
  147. Parallel/Series heater question
  148. Jay's Cheaterpants Hong Kong Marantz 7 Clone Build-Along
  149. Unused half of dual triode in low gain input stage in mono blocks?
  150. 12AL8 PP Amp Low Volume - Is this all or i can get more?
  151. Electrolytic cap voltage
  152. Power supply resistors
  153. Aikido Headphone amplifier
  154. preamp
  155. Resistor question
  156. How to turn Salvaged Parts into Projects..
  157. Output polarity?
  158. Help with this circuit
  159. Doing silly stuff for fun
  160. Modern Mullard head scratching
  161. Leben cs660p un identified component
  162. KT88 or 6L6 High-mu triode curves
  163. Edcor 240V primary 50hz humming
  164. Aikido quesion
  165. Why 6L6 is not more popular as power tube?
  166. 304TL SET schematic redesign. EML-20b Alternative?
  167. Question about Mullard EL84 Aplication note
  168. Magnavox tuner preamp 570111
  169. Tube amps on E-Bay
  170. Input, Output and Transfer Capacitance Question
  171. K502 Mods
  172. filament supply rectifier
  173. Triode as Voltage-Controled Dynamic Resistance in Compressor/Limiter
  174. RHSpud: Novice build
  175. 2A3 Amp - Not Another One...
  176. 12b4a pp
  177. replacing ECC82 with ECC99
  178. 2A3 input sensitivity
  179. Amp for JBL 2447 driver?
  180. Rare Philips 12ax7 Code Need Help
  181. Two quick questions on 35W4
  182. To convert Novar pins for Magnovale pins
  183. Mingda mc7r late design tweaking
  184. PSU for KT-90 PPP
  185. Noisy amp
  186. Book Recommendation for Newbies
  187. High power GU46 SE amplifier - help with certain issues
  188. BOYUU HIFI EXQUIS A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod
  189. Unknown SE output transformer wiring
  190. Class A output without all the heat cheat
  191. Grid leak bias - Easy to overload?
  192. How about LTP with degenerate resistor?
  193. 1200 vdc capacitor tube amp.
  194. Telefunken OPT
  195. Fixed bias question
  196. Question about loadline in Morgan Jones
  197. Please explain this power supply...
  198. 6SN7 - EL84 SE with interstage?
  199. 211 amp test. Square wave measures
  200. SAC thailand OPT for 211/845
  201. 6P21s
  202. 6L7M, Is there any use in audio?
  203. 958a Line Preamp
  204. What capacitors do i need for this?
  205. Experience of the TentLabs Bias control modules?
  206. Simple Line Stage Topology
  207. compound/hybrid amp
  208. 6CJ3's in full wave rectifier
  209. CCS anode load overcomes 3/2 law non-linearity
  210. EL84 PP OT design for amp project
  211. $3k o/p XFR
  212. Jadis Factory Tour
  213. Considerations for Tubelab Simplse
  214. "budget" headphone amp
  215. Power Pulse Tetrode for Audio
  216. The SE UL 6P41S USSR
  217. buzz from dacmagic on kit st70
  218. WE 350B and WE311B available
  219. How determine p-g1 capacitance in trioded pentode
  220. Why Is My Single Chassis #26 PreAmp So Stable!
  221. Rare tube
  222. Allan's rantings
  223. Tube Amp problem ?
  224. Tube preamp SS PS slight thump like dead wax on an LP
  225. Hum if volume control between midpoint and max; No hum if volume knob at max or zero
  226. SET's first ripple in a big wave ? Here it is . . .
  227. Fourier Chassis for the shipping costs
  228. 6P3S/6L6GB Amplifier from scrap parts :)
  229. Choke loaded 6ax4 bridge
  230. Transformer and choke orientation question
  231. Why some people want DC coupling in power amp?
  232. want to diy a tube preamp using only 12 volts help
  233. Russian 6p3s??
  234. Single-ended 8w amp
  235. Hovland HP 100
  236. Simple Line Stage Expanded
  237. Bridge Rectifier with Fullwave Tube
  238. Can anyone help diagnose this SOHA II amp channel?
  239. Schade and the 6C33C
  240. AMC 3030 annoying ripple noise
  241. Question and comments on SE vs PP by Eddie Vaughn
  242. 6080 PSE output Tx?
  243. Difference Between Self-Inverting Push Pull and Anti-Triode?
  244. Is this capacitor required?
  245. Why nowadays tube amplifier should play better than 1960's amplifiers?
  246. Aikido 12vac
  247. iPod to Adcom tube buffer
  248. Referencing a direct coupled output stage
  249. Long lead length to tube socket
  250. 6FH8 a strange tube for audio?

Content Relevant URLs by vBSEO 3.3.2