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

  1. 311-b
  2. PSU Design help !!!
  3. BDT Preamp build
  4. Russian tubes / capacitors purchasing
  5. Bored with Leak ST20 - ideas?
  6. KT-88 Music Angel problems with sound level
  7. Fusion Hybrid 300B
  8. I'm new here..... :(
  9. DIY/Buy/Kit
  10. Ralph from Atma-sphere will be giving a talk 09/16
  11. Modified USB DAC board, DDDAC with triode buffer
  12. LS50/GU50 Both Grid Drive
  13. Aikido filament question
  14. 6l6 Se.
  15. Feedback requested on 7591 PP design
  16. Blackburn Mullard/Philips video
  17. DIY sheilded B+ cable
  18. Experimenters Tube Sockets
  19. Used freebies precipitate questions
  20. Mains toroid as IT with DC balance?
  21. Tubes for Viva Solista 845 SET amp
  22. SE transformer for PP duty?
  23. Warning: new SS relay question / No flame I
  24. Tube Haunts Thread?
  25. Problem with Maida regulator
  26. 2 stage SE IT coupled amps..
  27. BUF420M Current Sink
  28. Direct from the mains?
  29. PSU capacitors: 30uF film ok instead of 100uF electrolytic?
  30. Annealed silicon core opt`s
  31. Designing a "cheap" highish-power PP amp...
  32. Improvements for the Mikael Abdellah KT88???
  33. DC supply on driver tube hums..
  34. Sun Audio SV-2A3
  35. Mullard Blackburn Tube Factory Tour Video
  36. SE amp: Please suggest a better operating point
  37. Paralleling Outputs or Bi-amp
  38. triple triode common cathode - only want to use 2 triodes
  39. Luxman 3045 Mono Block Tube Amp
  40. Eye tube for balancing multi amp system
  41. 12ax7 preamp.
  42. External PSU for Quad 22 pre-amplifier
  43. Keep Blowing Fuses
  44. learning tube rectified psu
  45. 17JB6... guitar amp?
  46. Series of Diode on HT Plate
  47. Quad II power amps......power output transformers!!!
  48. Mullard (factory) making tubes again
  49. CFB and A2 operation
  50. DIY triode
  51. Interesting symmetrical amp from 1955 magazine
  52. 6N23P, 6S19P anybody knows?
  53. Worlds smallest HiFi valve amp
  54. A DIY Interruptus Moment
  55. Noisy EL84 amp needs new front end
  56. Loosening up magnetic "stiction"
  57. The Return Of Blackburn Mullards?
  58. Can I use different value cap?
  59. tubelab SimpleSe power transformer connection question
  60. need output transformer for Fisher
  61. help for E182CC linestage/driver
  62. User Beware: A Report On Jj Tubes
  63. Depletion mode mosfets for 2mA CCS ?
  64. New tube stash question
  65. Stepped attenuator recommendation...
  66. Pros and cons of Cascoded front ends
  67. EF86 as a volume pot, line pre 2008
  68. RCA voltage regulator
  69. Input voltage attenuation
  70. Valve Buffer amp
  71. 6y6ga
  72. Filmosound L-1 6V6 Volume pot issue
  73. 3C24 in a SE output stage - output transformer impedance recommendation !!!
  74. Another 3f4 spice triode model: 5718 submini triode
  75. hp-8903B advice??
  76. need info on how to convert my bogen k10 for guitars use
  77. Differential Amplfiers - current sources under/over the triodes
  78. Impedance rate VS impedance stability
  79. Anyone running Mikael's SE KT88 in Pentode?
  80. what double triode is less microphonic ?
  81. Need advice on proper use of anode chokes.
  82. Grounding problem?
  83. Current regulation for filament of say a 300B
  84. diagram for OTP 6.6K valve KT88
  85. Dynaco Pas Transformer
  86. Regulated screen supply
  87. Shocked!!!
  88. set el84 tube amp
  89. tube preamp RIAA
  90. 4E27 as a substitution of 845
  91. LS 37 lite audio phono
  92. I want to build an amp!!!
  93. Multimeter test leads?
  94. Choosing proper g2 grid stoppers for SE UL..?
  95. audio note P1SE improvements
  96. Help for choke input regulated PSU
  97. 5687 perveance
  98. Where Can I Pick Up Neutral
  99. Hyperlinear line preamp
  100. What tube to use.
  101. Using mains transformer as output transformer
  102. AutoCAD of tube Packages?
  103. Has Anyone Tried This Before??
  104. More Tube Learning (for me) Cathode followers
  105. weird hum problem
  106. Simple technique for guitar amp channel switching?
  107. Weird oscillation
  108. Tube stash strategy and testing (long)
  109. Choke loaded LTP
  110. LM Ericsson 2C51 help!
  111. Antek TXs??Any use em???
  112. Speaker impedance questions (SE KT88)
  113. Spud-Assist: Totem-Pole Current-Mirror PP Hybrid
  114. my 6922 / E88CC preamp
  115. For the moderator
  116. 3 amps for HE speakers
  117. Pentode sounds great
  118. Shindo claret
  119. james 6123hs
  120. 6550 Amplifier
  121. ARC Ls 15 Schematic
  122. Super spud-amp?
  123. Basic Oscilloscope Usage Questions
  124. Grounded Cathode phase?
  125. Simple SE, how to wire CFB with outputs for different speaker impedances?
  126. PCB Board designer?
  127. Speaker for your low power tube amp?
  128. Tube collection Database.
  129. E288cc value?
  130. Hi End Tube Project
  131. parallel SE 2A3
  132. Want to build a tube/SS hybrid preamp for HT
  133. Do anyone has schematic for Counterpoint SA3000 ?
  134. Thermistor B+ or primary
  135. Measuring AC at Radio Frequencies
  136. The MingDa MC67-HA meets Frankenstein
  137. What's the biggest full wave damper diode?
  138. Maximising Tube Life
  139. Darling power supply calculations
  140. This is nice - Pix Ongen tube RIAA amp
  141. Tubelab SE 45... Super amp!?
  142. DAC - tube gain stage w/ AC heaters
  143. Microphonics?
  144. Insides of Tango Transformers
  145. Thoughts on horizontal sweep tubes?
  146. 2A3 Design Issues (Long)
  147. Design using EL42 output pentodes
  148. Blumlein's Garter Bias question
  149. Original ECL86 "Baby Huey" thread
  150. Too low heater voltage?
  151. Tube and digital?
  152. 807 monoblocks
  153. What to swap a 6AV6 for?
  154. Pot Noise Help
  155. cathode bias circuit question
  156. ECC40 driver stage for 2A3
  157. heater current and 6922 - 6n6p swap
  158. Tube Crystal Clock Oscillator
  159. Decware Zen Plate Model ZSP1
  160. Battery Power Preamp E188CC review please !
  161. 6sl7
  162. Tube sale at AES
  163. 5v3a
  164. 813 trioded Datasheet and curves
  165. Importance of resistor working voltage spec?
  166. TCJ My-Stock DB
  167. 845 Amp
  168. Ripple filtering help... strange slow rise and fall of voltage
  169. Plate and Filament Transformers
  170. Tentlabs Neg Bias Vs Machmat AFB
  171. Looking for 12AT7/ECC81 phonostage schematic
  172. 6AV5 PP amp Design Review
  173. 6sn7 Preamp power supply
  174. Please: tube kit for <$300?
  175. making a load line
  176. Telefunken Consoles: not just for tube and iron scavenging!
  177. Genalex Gold Lion KT77
  178. driving HD600
  179. Counterpoint SA-3000
  180. Phono stage for 2 7F7s (stereo) plus buffer?
  181. Help and your input on YAQIN MC10L EL34
  182. EL Cheapo Quad amplifier???
  183. Noob questions about a K-12/K-502 kit
  184. 3 quick transformer questions
  185. Push Pull Output tranies for SE amp?
  186. Tube Rectifier Capacitance?
  187. rca 189 b console amps need more info
  188. upgrade transformer?
  189. Parasitic oscillation? (picture)
  190. newbie question : driver/output relationship, input sensitivity
  191. Unknown tube logo
  192. Impedance, the 10x rule, losses & bandwidth
  193. el84/6bq5 PSE
  194. A very odd phase inverter- comments?
  195. Please check my work :)
  196. NOS purchase, should I be concerned?
  197. Strange splitter in the Audio Research D4
  198. 6ak5/5654 plate resistance
  199. Further Troubleshooting Simple SE
  200. What is the purpose of the g2 bypass cap?
  201. questionable 2a3 schematic
  202. overdrive circuit for hammond organs(need help)
  203. A singular experiment with a unheated tube.
  204. Limited bass response in one channel
  205. Show me your fave phonostage circuits.
  206. tube heater voltage, how much is too much?
  207. Para feed choke
  208. Dynaco ST35 power?
  209. Tips/comments for upcoming 300B build
  210. page Eli Duttman's Simple p-p with 5965 MQ EXO-173 and 6AQ5
  211. DHT cathode follower idea
  212. GK71 Output Transformer
  213. Schematics for A.I. Mod 2D
  214. Determing Battery Voltage for cathode bias
  215. OT for audio but still tube
  216. Getting transfer characteristics
  217. Pentodes and Choke Loading
  218. Stepped airgap choke ?
  219. Noob question
  220. SE 300B Integrated Amp: Help choose circuit design
  221. SunAudio 2A3 to 300B
  222. Filament Snubber Cap Explodes! What happened?
  223. Alot of 12AX7's about
  224. DIY tube microphone preamp
  225. Tube tester and PSUD II questions
  226. Wurlitzer/Fisher Amp Musings
  227. please check my work
  228. How to get cathode bias info from grid bias info?
  229. SE 300B Integrated Amp: Transformers
  230. Positive feedback, improperly drawn screen, or WTF?
  231. GE Console RC 7100 A - need some help!
  232. Output tube for 600V B+, 5800 ohm primary PP, tertiary 25% UL taps?
  233. Still tring to find a couple 100uf motor runs
  234. small push-pull amp to preamp
  235. Electraprint EL84 PP with PSA-2N
  236. OpAmp Swap?
  237. Bogen MX-60A- output transformer bandwidth?
  238. 6AS7 Parallel Feed Amp
  239. PSpice model of output transformer
  240. simple guitar push pull amp
  241. Siemens capacitor
  242. Super 6BG6 vs. 6550
  243. 5687 line stage
  244. Audio Standards
  245. 4 x used 5867A (TB3/750) triodes
  246. 12au7 who has the best ultra low noise ???
  247. Questions about tweaking the Miniblok SET...
  248. The core -sonic reasons
  249. Removing pot from valve pre amp
  250. Power transformer question

Content Relevant URLs by vBSEO 3.3.2