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

  1. Questions on JE Labs transformer coupled line stage
  2. Onix/Melody SP3 Upgrades and Mods
  3. Motorboating with Regulated Supply
  4. 27 & 6SN7 Preamp - Crossover
  5. Budget 2A3?
  6. first go at design - pp
  7. Tube Amp for MP3 Player
  8. Sonic signatures of KT88, 300B, 805, 845 in SET & PP Configurations
  9. Building the Baby Huey EL84 pushpull amplifier
  10. Tube Voltage Regulator, Is it worth the effort?
  11. Best tubeamp for metal, tight bass
  12. Donor stereo 845 amp- now what!?
  13. "Optimal" output grid loading?
  14. wax poured out!
  15. Yet another do-nothing tOOb hack.
  16. What is a CCS - how do you design one?
  17. Strange Aikido problem when home power fluctuates
  18. Need to regulate 450v --> 300v
  19. new to the forum and looking for el86 info
  20. Steve Bench Crossover Questions
  21. Audio Note M7 - 7F7 CCS
  22. Anyone have schema for katodcoupled 6C33 P-P?
  23. VTV Push-Pull 6SN7/KT88 Amp: DIY or China?
  24. How to identify type of bias used for my tube amp
  25. VR Tube Question
  26. Ampmaker Kits
  27. P-P with some muscle
  28. buzz w/ nothing plugged into inputs. Goes away once jacked in.
  29. CV6 / CV1135 / E1148 / VT232 VHF oscillator triode data
  30. Measuring tube/component temperature
  31. Parallel Single Ended Amplifier Design using Acro TO-290s?
  32. Elevate heater trouble
  33. Adjusting the sensitivity on a 6e2 magic eye tube
  34. tube amp for automobile / need ideas
  35. 6550A HF Amp
  36. problem - scratchy sound, rythmical
  37. eico st70 irons!what to do?
  38. Maestro soya amplificador
  39. Can I use my tube amp as a preamp ?
  40. Shunt Cascode Power Valve Driver
  41. Did Siemens ever publish data for their own D3A ?
  42. Measure unknown choke?
  43. 6528a....HELP ME PLEASE...PLEASE..
  44. Are any of these tubes useful to me?
  45. Heaters The Key Too Sweet Tube Tone.
  46. PP Output Transformer design
  47. "Kingfisher" P-P Amp using 7591A Outputs and Fisher 500B Iron
  48. 832 ultra-linear push pull?
  49. 3A5 thoughts
  50. ECC86 vs. ECC88
  51. RH84 builder!
  52. 10GV8 Bias point for the K-12G
  53. EL34 amp blowing up, anode glowing red hot
  54. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  55. Chinese 805 SET monoblock
  56. Vreg or Ireg for Phono heaters
  57. Pentode preamp tube hum balance
  58. New (old) Friends
  59. How to avoid oscillation and get max BW out of crappy OPT
  60. Power Measurements at normal listening levels
  61. Best way to terminate unused OPT winding?
  62. patent on single-ended amplifier, anno 2008
  63. Headphones amplifier with highish gnfb
  64. Change Tubes
  65. PLC84 amp
  66. Color Coding for Fisher 500B Iron
  67. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  68. 10dB increase in volume needs what gain?
  69. El Cheapo feedback loop adjustment
  70. KT88 blocks? With E80CC + 6922 driver?
  71. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  72. SS Rectification
  73. Passive filter at tube amp input
  74. Found this Trio WX-400
  75. PSUD & The JE Labs 2A3
  76. 815
  77. Iron LTP Schade-PP
  78. Single Ended Pentode Spud and Feedback
  79. Yes, I've searched. Can I use a PP OPT in a SE amp ?
  80. DC on toroid PT windings
  81. Any benefits of regulated current heater supply?
  82. Power Transformer Kaput ???
  83. aikido phono schematic qustion
  84. Easy question for experienced tubies
  85. valves dont sound so good when pink....
  86. Aikido Resistor Help
  87. Mobile Phone Interference
  88. Thank you DIY Audio
  89. Fisher 80-R Can't Find a Schematic
  90. SRPP layout
  91. Rogers E40a Amplifier Schematic
  92. Encapsulating OPTs
  93. Does anyone have 6BQ6 (sweep tube) triode plate curves to share?
  94. JAN6418 and microphony
  95. can the 6n9s take 300v? (ru 6sl7)
  96. Output impedance of various MOSFET followers at low (<10mA) currents
  97. Big Box O' Tubes
  98. 6j7g 832a amp
  99. Quick Question on Dc coupling
  100. PP question - best driver stage!
  101. SRPP+, or did JRB "borrow" from here?
  102. 5651(A) 85Kr
  103. Ampex 6v6 PP.. worth saving?
  104. The DeForest 504 tube
  105. Sven 6P1P PP Amp
  106. Black 6V6GT - originals
  107. tube phasing for more power?
  108. Question re paralleling common-cathode tube sections
  109. There's so much bait for dumb fishies out there!
  110. Biasing G3 in beamies
  111. 6DJ8 vs 6N1P (6H1N)
  112. Rca mi-9358a
  113. FISHER - 500b Caps Leave Them In ???
  114. RCA Calypso
  115. New to Valve Amps and Confused???
  116. Anyone used the TL783 as a CCS
  117. Katelelo
  118. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  119. Ping netlist - ECC88 spice models
  120. Please help analyse 807 PPP
  121. DIY Tube Pre with remote
  122. P-P Katodfollower with 6c33c
  123. valve sub
  124. Help on outboard PSU for tube amp
  125. Looking for ARC LS8MKII circuit?
  126. Entire Assembly Glowing in 20 Seconds
  127. 6X5GT PS Problem
  128. Sad News About Blackburn / Tech Tube
  129. Loose top caps.
  130. rh807 choke question?
  131. 6021 Cascode
  132. 6U7-G as driver in a RH 807?
  133. Possible Ebay bargain
  134. 845 tube question
  135. Broken VCM163
  136. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  137. Datasheet wanted
  138. SE 833A Help
  139. PS ripple vs output impedance for PP AB1
  140. Dynaco Bias Balance kit
  141. EL42 Tube
  142. 6GV8 at lowish voltage
  143. 703A tube source?
  144. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  145. "Back To Back" transformers
  146. Dual HF small signal pentodes ?
  147. pre amp output delay circuit?
  148. Standby voltages for tube circuits.
  149. SE Output transformers
  150. Decent Junk Pile find! Need Advice suggestions etc.!
  151. Red Plate,Tube runaway, glowing screen grids
  152. Dogfish
  153. Anyone ever bought this Ebay Head amp?
  154. Rogers Cadet III (Mk3) - which input to use?
  155. Recycling a TT plinth as a tube amp chassis?
  156. RH-84 Hum
  157. Regulator LD1085V Question
  158. Chasing Hum...
  159. What do you know about the 23D4?
  160. Vacuum State RTP3C
  161. Another Tubelad SE build
  162. Noisy DC filament power supply problem on an Aikido
  163. Aikido Phono Stage with Step-up Transformers
  164. 6-volt rectifier tube
  165. Replacing output transformer questions
  166. Hey SY, were you aware of this?
  167. Where is the best place to sell a pair of OTs?
  168. EL84 tube regulator
  169. Testing 6H2P on 600a
  170. Genrad 1630AV
  171. Gary Pimms "self bias ccs" - guide for dummies
  172. Using a PC as source? + "garage sale"
  173. loktal version of 6bl7
  174. RCA SE 6bq5 amp gain problems
  175. 12V AC to 6.3v DC simple supply for idiots
  176. PPAB with plate feedback, current-mirror driver
  177. LM317 oscillating in cathode circuit
  178. Help with RIAA stage schematics
  179. 829B/3E29 "Triode" Push Pull Paralleled Sections
  180. Phantom Bidders on eBay
  181. Help me choose between two designs
  182. Miller Capacitance AGAIN!
  183. Tossie's valve world site
  184. What is the purpose of resistive load at line output trans?
  185. 8608 pentode
  186. #26 pre amp
  187. my third RH84
  188. Miller Capacitance of triode strapped pentode
  189. 50 set amp
  190. Valuable Valves
  191. Allowable screen voltages in triode-connected pentodes
  192. grounding cable
  193. SS Driver and splitter stages used for PP tube output???
  194. Resistance coupled cascaded amplifier
  195. 6SL7 alternatives?
  196. Dynaco st70 vs Heathkit W5M
  197. Ceasar II - HighEnd Tube Mono Block Project
  198. Cool amp
  199. output tube blocking distortion problem
  200. HP 8903 software posted
  201. Rectifier for 900v DC
  202. How good are these?
  203. Brimar 6V6G different operating parameters to later GT?
  204. RCA RK290 console question
  205. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  206. Simple 6V6 Push Pull Schematic
  207. remote help for RCA RK-290 console
  208. Suggestion for a 2x15 or 2x20 amp?
  209. Spud, Schade, PP, Anti-triode ECL86
  210. Posted new P-P power amp design
  211. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  212. Vintage RCA amps
  213. 6.3V/5A DC Fillament Schematic
  214. Can I use this output transformers with a 5965?
  215. Measuring Tube Gm
  216. Can I use this output transformers with a 5695?
  217. How to design a direct coupled SE amplifier?
  218. Ordered TechTube Valves today
  219. Should I buy and part out an old Hammond tube organ?
  220. 6N6P Unbalanced Sound?
  221. DC filaments for 6550s
  222. My Copland CTA401 hums , help needed please
  223. Triode connected Pentodes in a cathode bias?
  224. Transformer as a voltage gain element
  225. Russian 6p31s tubes
  226. Ixcp 10m45s
  227. rectifier limiting resistors capacitor input
  228. arc V70 blue flash in KT90 tubes
  229. Choke?
  230. EL34 PP motorboating questions
  231. GU29 damaged
  232. PSUD2 questions
  233. Help lundahl-300bxls problem
  234. Srrp output question
  235. je lab 300b
  236. SET amp using Triode-FET complementary feedback pair ?
  237. Monarch STA-100X Refurb
  238. What causes high THD in tube amps ?
  239. Cons / Pros
  240. Preamp 6v6 grid leak resistor value?
  241. Quick question about preamps
  242. Why are mesh plates supposed to be superior?
  243. 60's and 70's GE tubes
  244. What valves are pin compatible with ECC88 / 6DJ8?
  245. Eico HF-81 OPT specs
  246. Audio Research V70 mains transformer rewiring for 220 volts.
  247. looking for fairly simple project for Eico 81 OPT's
  248. looking for fairly simple project for Eico 81 OPT's
  249. New Hybrid Driver/Amplifier
  250. OT: vacuum diode AM detector schematics ?

Content Relevant URLs by vBSEO 3.3.2