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 99 100 101 102 103 104

  1. Audio Note P2SE problem
  2. Aikido Transformers - Good Choice?
  3. Caps before or after MOSFET V-regulator
  4. Which capacitors should I replace?
  5. Testing Amplifiers
  6. Choosing choke valuein pre amp tube
  7. Supertriode with PNP transistors
  8. too much gain
  9. Lloyd's Vintage High Fidelity Audio Devices - both Tube and Solid State
  10. Cheap eBay "zoe_tsan" tube kits - worth anything?
  11. Bell Vintage High Fidelity Audio Devices - both Tube and Solid State
  12. Small Tube Amp with Hum
  13. tube rectifier question
  14. Unison Research S6 schematics
  15. vacuum tube amplifiers should be produced like this?
  16. 6d22s to 6cj3
  17. pot in tube preamp
  18. Mable Audio vs. Suppo audio sound quality
  19. swdfasdfsdf
  20. measuring heater voltage
  21. Need a circuit around these tubes.
  22. Single-Ended 13E1 amplifier
  23. Whats' the max allowable / reasonable ripple in SE amp?
  24. What amp kits are out there?
  25. ECC84/6N14P for audio
  26. PSU ignorant
  27. How to define a quality OT?
  28. Looking for some build advice
  29. SS CCS and distortion
  30. the valve with no markings
  31. Pentode AB1 design school???
  32. Capability of Sony/Tamradio SE Output Transformers
  33. my CELLINI triode amp
  34. 45-based SET -> Pass Labs F4
  35. Testing Amplifiers - Speaker or dummy load
  36. Quiet amp hums with signal source or input directly tied to star earth??
  37. amp output testing
  38. S5 Amp Comparison?
  39. How to Ground a Preamp PCB Board?
  40. RH807 / 6L6GC g2 issues
  41. 2010: Replacement for Black Gate WKZ 100uF+100uF 500V
  42. Converting Dynaco ST70 Power Transformer for 12.6V
  43. Simple CF with 5687/6900/E182CC
  44. World Audio Design 5881 Schematic needed
  45. PP triode transformer load
  46. 6V6 PP load line
  47. Need help to under stand this 6n3 Kit from ebay
  48. Blown left channel
  49. Tube preamp build help-heaters
  50. Medium Power SET, EL156 based
  51. Concertina Splitter question - Need help
  52. 6V6 amp - schematic options
  53. Lectron pa50+jh50
  54. 4pr60b valve
  55. Transformer phase splitter
  56. Help! ground hum
  57. Question regarding Leak Stereo 20 and 6SN7 line stage preamp
  58. Recommended upgrades for Yaqin Tube Buffer ?
  59. 6J5 or 6S4 mic amp?
  60. ST-70 build, ideas and advice
  61. Yaqin MC-100B Help Needed!
  62. Preamp Aikido : 6ax5GT,12au7,2c51
  63. Heater of tube
  64. R-Core Winders
  65. 1946 philco amp, tuner, record player
  66. otions for drawing tube schematics on Mac..?
  67. Push/Pull Plate Load Choke - how to figure Inductance?
  68. 6aw8-a tube question
  69. Newbie needs a point in the right direction
  70. Minimalist PL519 OTL?
  71. Telefunken schematics
  72. parallel pp EL84
  73. AD1 Operating Question
  74. 6П3С-Е Russian NOS: Gas Problem
  75. Favourite EL34 circuit
  76. Medium power SET with parallel OP tubes
  77. sds labs into Pas3
  78. Low voltage 6922 preamp...wanting a schematic
  79. Voltage Gain on Long Tailed Drivers
  80. Purpose of 5842 tube?!?
  81. MA XDSE KT88 vs YAQIN MC-100B KT88
  82. JBL Amplifier story
  83. Recommended spacing for multiple 5AR4's
  84. Cap choices coupling
  85. Output transformer for PP EL34 source
  86. mini max pre
  87. use 2 ohm speakers
  88. Ask tube rect 5u4c and JJ caps
  89. Adding caps to prevent oscilation in AF 5687
  90. Williamson on EL84. Is it worth doing?
  91. CCS and regulated B+
  92. Garter cross-coupled feedback
  93. soundcard protection Z ???
  94. Using a CCS on SE Output Stage
  95. First amp build... help please!
  96. multiple independent grid biasing from 1 mosfet
  97. Eico HF-81 modification opinion
  98. 4K or 5K Output Transformer
  99. Noisy input on Michaelson & Austin TVA-1
  100. Precision Electronics S-35 help,
  101. Rogers Cadet 3 Problem
  102. Triode Electronics VS Hammond
  103. Triode Operation Using The Screen Grids As The Control Grid - This Work?
  104. Start up delay needed???
  105. Connecting a stereo amp as a mono-block
  106. HQ-DHT (All tube DHT amli) 26-45-2A3
  107. 24A tube in triode mode, help !!!
  108. Need super quiet 6.3V filament supply schematic
  109. (Sound Space)Houston 2A3 Power Amplifier
  110. James Burgess 2A3 Monoblocks
  111. Funny tube tale from southamerica
  112. RCA 7189 Black Plates
  113. Preamp nasty noise and hum
  114. EDCOR VS One Electron
  115. Parallel output tubes/valves in push pull. Advantages/disadvantages?
  116. Robinhood output transformers?
  117. looking for help diagnosing volume loss on tube amplified reel to reel player
  118. Question about power consumption Hagerman Cornet Octal
  119. valve rectifier in PSUD
  120. Can you explain what this is ?
  121. volume rise with frequency problem
  122. 1 + 1 = 3 :)
  123. What would the perfect multi-way speaker for a tube amp look like?
  124. GU50 compared with EL84
  125. Counterpoint SA-4 manual and schematics
  126. Ever heard of a Valvo 16ECC ?
  127. the Reversal SRPP
  128. Want to build a C3G linestage
  129. 30A5 tubes
  130. Good speakers to match a K-12
  131. Driving Long Cables, how much current?
  132. twin triode question
  133. Am I going to blow up my 7189s
  134. How is wattage calculated when only using a single section?
  135. Counterpoint SA5 problems and a question.
  136. Headphone Amplifier 6922EH
  137. Fuse Clip for Small Plate Cap Use
  138. Advice sought on medium power triode for tube headphone amplifier
  139. Input stage
  140. Does anyone have any FFT plots from real Class-AB tube amps?
  141. Testing for a Damaged Output Trafo
  142. What has happened to WE Huntsville lately?
  143. Output Transformers Sun HCT 1003 KT
  144. Plexiglass case for small tubes?
  145. 100 Best Sound Tubes
  146. Input tube bias
  147. eschematic amplifier sinle end 12at7 6av6 6bq5
  148. Wiring - Audio Note Transformer Parallel Single-Ended 300B
  149. HV using zener diode
  150. Akai M8 rebuild up and running!
  151. Best current production 2a3
  152. what happens when plugging a stereo source into mono jack on a tube amp?
  153. Transformer coupled Gainclone idea.
  154. Audio Research VT100
  155. output transformer turns per volt
  156. valves and metal cones= bad mating?
  157. Why do you need a grid to ground resistor on a line stage?
  158. Need some help with RIAA Preamp
  159. Swapping transformer cores
  160. got hold of a bunch of tubes...
  161. output transformer secondary configuration
  162. WE/Ultrapath B+ Where?
  163. Blending 12ax7 parallel gain stages
  164. Sudden spark.
  165. Priboj Reborn
  166. Misunderstand of sijosae schematic
  167. 12AX7 Identification
  168. GM70 Datasheet Error!!
  169. Using old Hammond iron
  170. Need confirmation on LED bias for circuit
  171. Tube Parameter "Attenuation, Harmonic" What is it?
  172. Tube amp with Dual Triode
  173. Fisher X-101-C bias question
  174. DC Current-Regulated 300B filaments?
  175. Anyone ever use DC to heat rectifier tubes?
  176. Help Choosing Power Supply Voltage Regulator Aikido Phono Amp
  177. Best sounding remote control volume
  178. plate and screen voltage
  179. 12AT7 plate voltage
  180. Latest LTspice giving crazy FFT results
  181. Dynakit PC-3A as a balance pre?
  182. e283cc better sounding than?
  183. Porchlight Scratchbuild
  184. No output and Loud squeals! Help!
  185. Low mu triode for phase splitter
  186. Help figuring which is the center tap???
  187. Help with Paco SA-40
  188. Best tube/sonics
  189. One Half 12AU7
  190. Gyrators to replace PSU chokes?
  191. Output trannies for 6as7
  192. 2 Toroids = 1 Isolation Transformer?
  193. Sagging Heaters
  194. Kofi Annan in: "Kofi's Baby Huey"
  195. Point to point wiring help
  196. help !! PTT2s Line stage
  197. Rickard Berglund, Sweden
  198. clipping
  199. Wanted: a couple of UNF bolts
  200. H-Bridge Amp Design
  201. need help with yaqin mc10l
  202. Watt the?
  203. DIY tube preamp with 5687
  204. Help with tube stereo build
  205. Tube recommendation for speakers
  206. Eliminating volume pot?
  207. CXPP100-MS-3.3K or CXPP100-MS-4.2K
  208. tube power supply voltage
  209. Driver Bypass Cap - Value?
  210. Tube bases and plate caps rant
  211. tube dual regulated psu needs amp
  212. Help me choose output transformers
  213. Verdier dual regulated tube psu
  214. Aikido Phono Amp Output Tubes 12AU7 and 12AX7?
  215. Mullard EL84 ID
  216. schematic request for transformer with 4k primary and UL taps
  217. Plate-Grid feedback: How to get better than DHT performance from cheaper tubes
  218. More class D madness
  219. the SuperHybrid
  220. Tecon Model "55" final mods(?)
  221. Hammond P-T125E OPT
  222. Highbred Amp "TUMOS" Sounds good?
  223. 300B SET which chassis design
  224. Help with creating a simple tube HV regulated supply
  225. Tube Sockets for oddball miniatures
  226. Bogen chb35a
  227. My last el84 PP tube amplifier
  228. Ultrapath - Advantages?
  229. Phono preamp with c/em2
  230. 12AY7 plate current
  231. OPT identification
  232. Resistor values at supply to anodes
  233. Typical output impedance for tube amps
  234. Problems with EM87 stereo level indicator for computer line out
  235. VR tube recommendation
  236. Mills MRA-5 resistors in tube circuits
  237. B&K Dyna-Quik 500 shows good tubes as Shorted
  238. Output transformers
  239. Sub 6n6p for 6n1p?
  240. SET Amp History in Japan
  241. Grid Bias or Cathode Bias
  242. Oscillating CJ PV-5
  243. FireFly Single Ended Tetrode
  244. Aikido front end for a SE 6C33S
  245. Ground Plane vs Star earth
  246. Circuit board with long post??
  247. ecc804 as Phase Splitter
  248. What can you do with a 3a5?
  249. Auto Wave soldering sockets
  250. Using diode for biasing

Content Relevant URLs by vBSEO 3.3.2