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. el84 se amp layout
  2. the grand return. 3d21A triode PP
  3. How did receiving valve manufacture compare to the LHC ...
  4. Classi RIAA preamp questions
  5. Max input voltage with negative feedback in place?
  6. Is there a 9-pin mini equivalent of 6AU6?
  7. Which DHT tube, mu>30 driver duty
  8. LTP and H3 distortion
  9. Schematics for Bendix 6384
  10. Has anybody compared distortion profiles of their amp designs?
  11. Dynacord transformer sparks flying
  12. Why this exists?
  13. Help with strange valve project:)
  14. help with these transformers please
  15. Bias a heater supply with humdinger?
  16. Question About Isolating Grounds
  17. How close is close enough for setting bias?
  18. Vitamin Q or Auricaps for coupling...any opinions?
  19. High current from EL84 measured on tubetester
  20. Power supply design for my preamp
  21. How do I get USB input into a tube amp?
  22. Janus Shunt Regulator / Aikido Octal build
  23. 6SN7 or 12AU7 Tube preamp for Gainclone
  24. E-Linear, P-P pentode application
  25. 6n6p preamp. Does it look ok?
  26. www.grippeaz.com
  27. Capacitance value help
  28. 6C33 SVETLANA in 1979??
  29. FYI: MCM 555-7125 Transformer Info
  30. Anyone use 39/44 for audio?
  31. I think its about time for me to design my first Transformer tube amp..
  32. Q: EL84 PP - Bias switch, PS regulation
  33. Balanced to unbalanced converter solution with only one dual triode?
  34. ECL85 G1+G2 Driven Amp Concept - Worth Pursuing?
  35. What is this called? "Triode with active load"?
  36. Type 50 triode amp
  37. Triode strapped C3G
  38. Newbie looking for first tube project. Maggie 9308 or like suggestions?
  39. Poindexter's Musical Machine:Tube Power Supply Schematic
  40. SE EL34 cathode help ?
  41. How to add "Vu-Meters and "Subwoofer Out" to a tube amp...
  42. Audio Research D90... a HOT, buzzing amplifier
  43. Lundahl LL1670 grid choke -- One or two needed for push-pull?
  44. At this stage of my experience almost too afraid to ask
  45. Help with EM7 circuit
  46. Ceramic or plastic noval socket
  47. Need connection info for Thordarson 22S86
  48. Harmon Kardon A500 Redux
  49. Schematic for 2A3/300B SET OTL amp
  50. Bias circuit for fixed bias
  51. Ultrapath with cathode bypass cap: which value of C is correct?
  52. Volume Control Tube Amp / Graaf Graafiti WFB one
  53. Pultec EGP-2 control pannel
  54. Emission values?
  55. Capacitor Upgrade for S5 Electronics (16LS)
  56. 'nipple' in waveform - What is it?
  57. High impedance speaker for SET OTL amps.
  58. Uneven output from LL1677
  59. Ugh. Need help with hum
  60. 6H16B plate follower output stage
  61. Tube preamp 30 gain design with 12ax7
  62. Operating points for 6n2p
  63. Have you tested if two coupling capacitors in parallel are better than one sonically?
  64. DHT filament circuits - best wirewound resistors?
  65. Dual Pentode as two seperate Pentodes.
  66. Double "C" core OPT question
  67. EL34 pentode to triode feedback
  68. Chinese 7308?
  69. DC coupled circuits
  70. Need a complete amp kit for newbie
  71. Making a tube amp
  72. Tube amp diode question
  73. Michaelson Chronos
  74. Preamp question
  75. 6SJ7 and 6SC7 not on roll chart
  76. Graaf GM20 6C33
  77. Does Ultra-Linear SE reduce harmonic distortion?
  78. How to use a 3 prong plug with a Dynaco MkIII?
  79. 6e5-6e6 tube-operating point-absolute maximum rating
  80. LIFePO4 battery cathode bias
  81. Audible Illusions Modulus 3A CD input resistor values
  82. Insulation for component leads in point to point wiring
  83. Advices on first tube amp
  84. 300B Tube Shootout
  85. Unison reasearch Mystery One
  86. 4P10C or 4Π10C tube, any member familiar with?
  87. Largest decoupling cap (DC block on signal path)
  88. Control Grid Feedback (as opposed to Cathode FB) and Miller Capacitance
  89. 211 / 845 ccs?
  90. Eimac 35T any good for an amplifier?
  91. What speaker impedance for a 5 ohm amplifier
  92. Almarro A318B SET Amplifier Simple Modifications For Improved Performance?
  93. Hammond interstage
  94. Bias Arrangement
  95. question about connecting my tube amp to a receiver
  96. Pentode screen bypass capacitor
  97. MINGDA MC845 AA schematics
  98. Faulty Output Transformer
  99. The makings of a nice SEP amp from an audio oscillator?
  100. Audio pot with tap
  101. tube amp and jbl crossover connection
  102. SE EL84 high screen and plate
  103. Marantz 7 line stage with DAC
  104. help with Ecc82/12AU7 selection
  105. Kt88's and 6SN7's?
  106. KR T-1610: What can I do with it?
  107. Schematic
  108. Determining primary output load resistance...
  109. Warning about chokes by Toroidy
  110. Looking af new 845
  111. 807 Amplifier build.....Help Wanted
  112. Claus Byrith 4-30 - HELP !
  113. LR8 as CCS for small tube cathode follower?
  114. Tektronix 120-086 transformer
  115. 01A question
  116. Determining input impedance
  117. Plate to cathode feedback
  118. Quick question about EL84 PSE
  119. P-SET EL34
  120. 6v6 Preamp Explorations
  121. Monoblock kits for $500
  122. Wanted/Needed Vaic Valve / KR 52B etc.
  123. Measuring Rp on the bench
  124. Clarifying RIAA calculations
  125. Emissions Labs 5U4G use statements
  126. Help me pick my first tube kit/winter project (tube preamp)
  127. Please explain feedback to an ignoramus
  128. Op-Amp/Power tube integration
  129. 12b4a preamp project
  130. Pot to Stepping and ohmic value change
  131. McIntosh MC2000
  132. universal high-gain pre-amp useful ?
  133. 6AX5, the forgotten rectifier?
  134. High gain pentode LTP?
  135. question with heater wiring
  136. Ideas for an hi-fi mono amplifier (and preamplifier)
  137. humm and buzz
  138. ECC88 For LTP
  139. Polam / Telam tubes !
  140. Question about grid input signal voltage
  141. Douk EL34 Amp kit
  142. ID help Please Hammond Amp
  143. rolling ecc88 into a 6cg7 socket
  144. Article Wanted - "High Quality Amplifier with the 6AS7G" by McProud
  145. capacitors
  146. Need a little WE 597A help
  147. Need to find - Triode Va=500V, Mu=20
  148. The Pomato, A hybrid can amp
  149. Effect of raising and lowering B+
  150. Ideas for tube amp EL34/ECC83 single ended
  151. The HiFi show 2015 UK
  152. Coupling capacitors
  153. Brook 12A
  154. Importance of plate voltage on overall performance
  155. Help Precision Fidelity M-7 amp
  156. And so it begins...
  157. What is the cream of the crop for DIY tubes kits?
  158. Amplifier Build - Suggestions
  159. 26DQ5 curves pin out
  160. Toroidal Transformer Upgrade for S5 Electronics K-16LS Kit
  161. VR tube RF issues
  162. usb and 3.5 to same pre
  163. Gain changing on 6n3 tube buffer
  164. Kelvin Capacitors
  165. simple question about on off switch
  166. Engineers Amp chassis
  167. First tube amp design, what are my mistakes?
  168. US 6L6GC identification
  169. PL508 triode curves, help !!!
  170. Multiple gain stages without continually increasing B+
  171. Choke and Capacitor input filters on a same winding?
  172. Any advice value for Volume control if....
  173. For tube lovers-Henry Wolcott Amplifiers from JBL PL100
  174. Help translate stamp mark on russian tube
  175. UK Engineers Amp (my first project)
  176. 12AX7 Heater pin 9
  177. Help With Translating Schematic
  178. Do diodes in the power section produce heat?
  179. you gotta laugh......really!!
  180. why is dc coupled better ?
  181. ARC grounding question
  182. Littles modifications of Triode Dick's KT88 MonoBill Classic
  183. New 6BG6G Amp
  184. Aesthetix Rhea Power Supply voltages
  185. Newbie - Broken Valve amp help!!
  186. New Build - Geraldine SE Amp
  187. Michaelson & Austin save attempt
  188. LTspice model needed....6JN6
  189. Big distortion of tube amplifier at high frequencies
  190. Radio Tubes Classifieds
  191. Sad and Lonely 6X4 Rectifier
  192. The Wild, Weird, World of GNF
  193. My first tube amp is here!!!
  194. Retro nixie volume indicator
  195. how to connect my corrent output DAC to my preamp TUBE?
  196. Roberts 770x / Akai M8 Tube Amplifier Question
  197. Conrad Johnson MV50 adjustment?
  198. Hum in console preamp after power supply rebuild
  199. Electrohome console amp?
  200. input impedance of mullard 3-3 amplifier....
  201. 6X4 Tube Rectifier Bridge
  202. can I use a zener for cathode bias
  203. Dual 5V winding 5AR4
  204. el84 test jig circuit
  205. suggestions wanted for otl design
  206. Converting a single ended amp to parafeed
  207. Online stores for ordering Hitachi Metglas cores?
  208. Box of old tubes
  209. tube preamp
  210. bypassing balance control on VTL Deluxe
  211. Allegro II power amplifier
  212. ECF80 rating
  213. 71a pp parallel
  214. Hammond transformer 1627SEA
  215. Final schematic of my SET amplifier (drilling the chassis of my ex Boyuu china amp)
  216. Building Tube Amp DVD from Australia
  217. Tube preamp
  218. Bigger amp building help
  219. Balanced tube RIAA Preamplifier - Idea Search
  220. One tube brighter/hotter than the others
  221. HMV 2001 1953 record player circuit
  222. D3a - diode between screen & plate (triode) ?
  223. Radiotron/Eli Duttman phono change C1 to .00391?
  224. Mating Martin logan summits with VTL 125s has been a challenge
  225. Learning to Build A Tube Amplifier
  226. how to determine if an output transformer has blown?
  227. Secondary Emission Tetrode
  228. Monster Transformer Has Arrived
  229. wiring tubes in series
  230. Rogers E20a/Audio Note transformer
  231. PCL86 Amplifier
  232. Beard BB100 P35 project
  233. 6p15p
  234. help with paul hynes reg
  235. Vinyl Savor 6CB5A SE Amps?
  236. VTL Deluxe tube mystery
  237. My First SPUD Amp, 6EM7
  238. GK-71 SE amp
  239. 12ax7 Phono Preamplifier
  240. Aikido 6GM8 (ECC86) HPA or How I built a tube amp with non-scary voltages
  241. "Langham" Phase Inverter Origin?
  242. Adding "tube sound" via inline circuit
  243. Radford STA25 Renaissance - HELP!
  244. Capacitor across B+ and the input signal on the primary of the output transformer
  245. Zenith KPS-80 Rebuild
  246. 50+ watt diy tube amp recommedations
  247. Trouble with PSUD 2 high current / low voltage
  248. Magnavox 175 clone w/Fisher OPTs?
  249. First post here, need some help with PSU for amplifier
  250. Novice build of 6EM7 circuit. PSU advice.

Content Relevant URLs by vBSEO 3.3.2