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

  1. Measuring tube/component temperature
  2. Parallel Single Ended Amplifier Design using Acro TO-290s?
  3. Elevate heater trouble
  4. Adjusting the sensitivity on a 6e2 magic eye tube
  5. tube amp for automobile / need ideas
  6. 6550A HF Amp
  7. problem - scratchy sound, rythmical
  8. eico st70 irons!what to do?
  9. How Lampizator CD tube player sound?
  10. Maestro soya amplificador
  11. Can I use my tube amp as a preamp ?
  12. Simple SE with 6BG6GA - magic smoke escapes...
  13. Shunt Cascode Power Valve Driver
  14. Did Siemens ever publish data for their own D3A ?
  15. Motor run caps as power supply filter
  16. Measure unknown choke?
  17. 6528a....HELP ME PLEASE...PLEASE..
  18. Are any of these tubes useful to me?
  19. Heaters The Key Too Sweet Tube Tone.
  20. PP Output Transformer design
  21. "Kingfisher" P-P Amp using 7591A Outputs and Fisher 500B Iron
  22. 832 ultra-linear push pull?
  23. 3A5 thoughts
  24. ECC86 vs. ECC88
  25. RH84 builder!
  26. 10GV8 Bias point for the K-12G
  27. EL34 amp blowing up, anode glowing red hot
  28. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  29. Tubelab SE w/Parafeed
  30. Chinese 805 SET monoblock
  31. Vreg or Ireg for Phono heaters
  32. Traynor YMV-1 Voicemaster to Guitar conversion
  33. Pentode preamp tube hum balance
  34. New (old) Friends
  35. How to avoid oscillation and get max BW out of crappy OPT
  36. Power Measurements at normal listening levels
  37. Best way to terminate unused OPT winding?
  38. patent on single-ended amplifier, anno 2008
  39. Headphones amplifier with highish gnfb
  40. Bias meter for AQ1008DT
  41. Change Tubes
  42. PLC84 amp
  43. Color Coding for Fisher 500B Iron
  44. Tubelab SE with 45 tubes only
  45. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  46. 10dB increase in volume needs what gain?
  47. El Cheapo feedback loop adjustment
  48. KT88 blocks? With E80CC + 6922 driver?
  49. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  50. Violator Amp
  51. What to do with 3500uF 650V caps???
  52. SS Rectification
  53. Passive filter at tube amp input
  54. Found this Trio WX-400
  55. PSUD & The JE Labs 2A3
  56. 815
  57. x1 Oscilloscope probes
  58. Iron LTP Schade-PP
  59. Single Ended Pentode Spud and Feedback
  60. Yes, I've searched. Can I use a PP OPT in a SE amp ?
  61. DC on toroid PT windings
  62. Audible benefits of larger coupling caps than required?
  63. Any benefits of regulated current heater supply?
  64. Power Transformer Kaput ???
  65. aikido phono schematic qustion
  66. Easy question for experienced tubies
  67. valves dont sound so good when pink....
  68. Aikido Resistor Help
  69. Mobile Phone Interference
  70. Thank you DIY Audio
  71. Fisher 80-R Can't Find a Schematic
  72. SRPP layout
  73. Rogers E40a Amplifier Schematic
  74. Encapsulating OPTs
  75. Does anyone have 6BQ6 (sweep tube) triode plate curves to share?
  76. JAN6418 and microphony
  77. can the 6n9s take 300v? (ru 6sl7)
  78. Output impedance of various MOSFET followers at low (<10mA) currents
  79. Big Box O' Tubes
  80. 6j7g 832a amp
  81. Quick Question on Dc coupling
  82. PP question - best driver stage!
  83. SRPP+, or did JRB "borrow" from here?
  84. 5651(A) 85Kr
  85. Ampex 6v6 PP.. worth saving?
  86. The DeForest 504 tube
  87. Sven 6P1P PP Amp
  88. Black 6V6GT - originals
  89. tube phasing for more power?
  90. measuring output transformer inductance?
  91. Question re paralleling common-cathode tube sections
  92. There's so much bait for dumb fishies out there!
  93. Biasing G3 in beamies
  94. 6DJ8 vs 6N1P (6H1N)
  95. Test equipment collection
  96. Rca mi-9358a
  97. FISHER - 500b Caps Leave Them In ???
  98. tek 454
  99. RCA Calypso
  100. New to Valve Amps and Confused???
  101. Anyone used the TL783 as a CCS
  102. Katelelo
  103. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  104. Ping netlist - ECC88 spice models
  105. Please help analyse 807 PPP
  106. DIY Tube Pre with remote
  107. P-P Katodfollower with 6c33c
  108. valve sub
  109. Help on outboard PSU for tube amp
  110. Looking for ARC LS8MKII circuit?
  111. Entire Assembly Glowing in 20 Seconds
  112. 6X5GT PS Problem
  113. Sad News About Blackburn / Tech Tube
  114. Loose top caps.
  115. rh807 choke question?
  116. 6021 Cascode
  117. 6U7-G as driver in a RH 807?
  118. Possible Ebay bargain
  119. Possible Ebay bargin
  120. 845 tube question
  121. Broken VCM163
  122. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  123. Datasheet wanted
  124. SE 833A Help
  125. PS ripple vs output impedance for PP AB1
  126. Simple SE with 807?
  127. Dynaco Bias Balance kit
  128. EL42 Tube
  129. 6GV8 at lowish voltage
  130. 703A tube source?
  131. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  132. "Back To Back" transformers
  133. Dual HF small signal pentodes ?
  134. pre amp output delay circuit?
  135. Standby voltages for tube circuits.
  136. SE Output transformers
  137. Advice on connector type for outboard PS
  138. Decent Junk Pile find! Need Advice suggestions etc.!
  139. Red Plate,Tube runaway, glowing screen grids
  140. Dogfish
  141. Anyone ever bought this Ebay Head amp?
  142. Rogers Cadet III (Mk3) - which input to use?
  143. Recycling a TT plinth as a tube amp chassis?
  144. motor run caps
  145. RH-84 Hum
  146. Regulator LD1085V Question
  147. Chasing Hum...
  148. What do you know about the 23D4?
  149. Vacuum State RTP3C
  150. Another Tubelad SE build
  151. Noisy DC filament power supply problem on an Aikido
  152. Aikido Phono Stage with Step-up Transformers
  153. 6-volt rectifier tube
  154. Replacing output transformer questions
  155. Hey SY, were you aware of this?
  156. Where is the best place to sell a pair of OTs?
  157. EL84 tube regulator
  158. Testing 6H2P on 600a
  159. Grid stoppers, clamping, blocking and crossover distortion.
  160. Fender 125A20B output transformers?
  161. Genrad 1630AV
  162. Gary Pimms "self bias ccs" - guide for dummies
  163. Using a PC as source? + "garage sale"
  164. loktal version of 6bl7
  165. RCA SE 6bq5 amp gain problems
  166. 12V AC to 6.3v DC simple supply for idiots
  167. PPAB with plate feedback, current-mirror driver
  168. LM317 oscillating in cathode circuit
  169. Tubelab SE amp question
  170. Help with RIAA stage schematics
  171. 829B/3E29 "Triode" Push Pull Paralleled Sections
  172. Phantom Bidders on eBay
  173. Complicated psuedo-scope question
  174. Help me choose between two designs
  175. Miller Capacitance AGAIN!
  176. Channel switching / Relay / board
  177. Tossie's valve world site
  178. What is the purpose of resistive load at line output trans?
  179. 8608 pentode
  180. #26 pre amp
  181. my third RH84
  182. Miller Capacitance of triode strapped pentode
  183. 50 set amp
  184. Valuable Valves
  185. Allowable screen voltages in triode-connected pentodes
  186. grounding cable
  187. SS Driver and splitter stages used for PP tube output???
  188. Resistance coupled cascaded amplifier
  189. 6SL7 alternatives?
  190. Dynaco st70 vs Heathkit W5M
  191. Ceasar II - HighEnd Tube Mono Block Project
  192. Cool amp
  193. output tube blocking distortion problem
  194. HP 8903 software posted
  195. Rectifier for 900v DC
  196. How good are these?
  197. Brimar 6V6G different operating parameters to later GT?
  198. RCA RK290 console question
  199. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  200. Simple 6V6 Push Pull Schematic
  201. remote help for RCA RK-290 console
  202. Suggestion for a 2x15 or 2x20 amp?
  203. Spud, Schade, PP, Anti-triode ECL86
  204. Posted new P-P power amp design
  205. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  206. Vintage RCA amps
  207. 6.3V/5A DC Fillament Schematic
  208. Can I use this output transformers with a 5965?
  209. Measuring Tube Gm
  210. Can I use this output transformers with a 5695?
  211. How to design a direct coupled SE amplifier?
  212. Ordered TechTube Valves today
  213. Should I buy and part out an old Hammond tube organ?
  214. 6N6P Unbalanced Sound?
  215. DC filaments for 6550s
  216. Obliterate, delete Vibrato or Reverb circuit in blackface-like amps
  217. My Copland CTA401 hums , help needed please
  218. Triode connected Pentodes in a cathode bias?
  219. Transformer as a voltage gain element
  220. Russian 6p31s tubes
  221. Ixcp 10m45s
  222. rectifier limiting resistors capacitor input
  223. arc V70 blue flash in KT90 tubes
  224. Choke?
  225. EL34 PP motorboating questions
  226. GU29 damaged
  227. PSUD2 questions
  228. Help lundahl-300bxls problem
  229. Srrp output question
  230. je lab 300b
  231. SET amp using Triode-FET complementary feedback pair ?
  232. Monarch STA-100X Refurb
  233. What causes high THD in tube amps ?
  234. Cons / Pros
  235. Preamp 6v6 grid leak resistor value?
  236. Quick question about preamps
  237. Why are mesh plates supposed to be superior?
  238. 60's and 70's GE tubes
  239. What valves are pin compatible with ECC88 / 6DJ8?
  240. Eico HF-81 OPT specs
  241. Fender Super Twin P Xformer
  242. Audio Research V70 mains transformer rewiring for 220 volts.
  243. looking for fairly simple project for Eico 81 OPT's
  244. looking for fairly simple project for Eico 81 OPT's
  245. New Hybrid Driver/Amplifier
  246. OT: vacuum diode AM detector schematics ?
  247. Sad News about George Wright
  248. Finest Chinese Tube Preamp?
  249. 12B4 Line Stage + Phono Option
  250. Crinkly tube getter Is this bad?

Content Relevant URLs by vBSEO 3.3.2