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

Content Relevant URLs by vBSEO 3.3.2