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

  1. 6B4G schematic - opinions please!!
  2. Plate current Question
  3. rh84 bias question.
  4. On/off LED wiring question
  5. Stabilized wood
  6. Heater to Cathode max voltage specs, including signal swings?
  7. Any 9- pin rectifier tubes with separate cathodes?
  8. Final checkout problems with Tubelab SE
  9. 6G-A4 anyone have a datasheet?
  10. Bias Protection Resistors in DC Coupled Amp
  11. EL84 push pull
  12. pcb printing companies
  13. Help! tube amp burnt?
  14. 43% UL connections
  15. Help with CATHODE resistor value on 6BM8 PP Amp
  16. SE EL34 schematic HELP: from two 6SL7's to One?
  17. no choke and transformers ratings
  18. Value of Resistors of EL34
  19. bass preamp redux
  20. Power Transformer spec questions. Will it work or burn up?
  21. These Hong Kong amps have me bummed
  22. Looking for a cheap dual pentode
  23. Adding panel meters to Simple SE?
  24. Building a 12B4 Line Stage
  25. Speaker sounds blown...but isn't
  26. Static noise in K-16LS
  27. Scratchy clicky noise coming from homemade 6L6 tube amp
  28. Rowe AMI jukebox amp
  29. Does this power supply make any sense to you?
  30. Zener Diode Question
  31. 829B as LTP?
  32. Need a little help with Aikido 6n1p/6n6p
  33. Power switch location..
  34. Mini Millet (starving student) and iPod??
  35. valve preamp for quad 303
  36. Paging Wavebourn - article on Russian caps...
  37. I'm about to drive a stake thru the heart of my Aikido linestage
  38. questions on Mikael Abdellah circuit optimized for EL34 triode operation
  39. Model 16LS Stereo Integrated Tube Amplifier
  40. hum on pre-amp when volume is turned up
  41. 813 RCA amplifier - 25w, class A1, single ended,2 tubes,Rout~1ohm
  42. Interesting circuit, filter question.
  43. Choke Voltage ratings
  44. Hole drills
  45. Major amp circuit redesign- need some expert advice
  46. Daft Hybrid Amp
  47. 6n18-v tube amp
  48. Old big/long plate 12AX7's & 12AT7's
  49. in progress
  50. JTM45 clone
  51. A good tube amplifier power supply
  52. Anyone compared electra-print SE:PP interstages to electra-print PSA-2 autoformers
  53. El34 Se
  54. Question on choke
  55. Simple SE output transformer: James or Edcor?
  56. Looking for beter EL34/6CA7 tubes for C-J MV55 amp
  57. SET tube replacement
  58. Some kind of buffer/preamp for my SS guitar amp fx loop
  59. VALVOLOZZO triode amp with toroids output trafo...help me
  60. Old amp kit making noise and its getting OLD.
  61. Another Tube pre query !
  62. Simple SE aux capacitor
  63. do 6h30 glow at the top only
  64. canadian source for triad choke?
  65. Fork vs. Sleeve Terminal Octal Sockets.
  66. Step down grid choke vs. interstage transformer
  67. Who knows James 6123HS parameters? Or where to ask
  68. Advantage of a FET-BJT CCS vs BJT only
  69. Question - PCB Design with Multisim/Ultiboard
  70. Trouble choke loading tube in regulated supply
  71. PSUD newbie: modeling Tubelab SE
  72. Bassman Schematic Alterations
  73. Fixed Bias adjustment
  74. web resource for tube pricing?
  75. Need help on Kenwood KR 7070
  76. 110v or 220v, how can you tell?
  77. Calling UK builders Simple SE, Pre & Phono advice
  78. Stoked about new volume control for my Simple SE
  79. Tubes Down Under...
  80. To anyone using 808s
  81. Grounded power supply cord on a transformerless amp ?
  82. Documenting SimpleSE FRED Problem
  83. PP KT88 Mono blocks?
  84. Looking for 6.3V 1A ccs heater supply for dht
  85. testing for the ratios on old opt's
  86. Any Transformer Winders?
  87. Output trans plate load question 5687 vs 5965
  88. KT88 triode strapped question
  89. 6528/8080 Triode - NOS Only ???
  90. Opinions gratefully recieved.
  91. Wiring Power Transformer in Parallel
  92. Is there a best location for a volume control?
  93. bass guitar preamp
  94. P2P vs PCB
  95. Help on EL84 / ecc83 SE project -very low volume
  96. 4E27 Triode connection SPICE model
  97. 300B driving 845
  98. Breaking in your tubes?
  99. 6SN7 equivalents in B9A
  100. Figuring out how many watts I need
  101. How do I tell whether a different replacement output transformer will be ok?
  102. OPT linestage question
  103. 6AS7 preamp buffer
  104. Where to put the MV ?
  105. 5u4g input capacitor
  106. Chassis metal advantages/disadvantages?
  107. Experience please: Tung-Sol 6L6GC STR
  108. Transformer winding resistances
  109. Capacitor Voltage Rating Question
  110. Oh my where to begin!? PTP related question.
  111. tube bayonet pin gone.
  112. Attn: Glass_painter - Pioneer SM-83 Transformers Dissected
  113. Please help ID this DIY tube monoblocks
  114. Amp thinks it's a receiver ??
  115. Anyone remember heathkit s99?
  116. Blue Voodoo Solid State Rects to Tube Rects?
  117. Renovation of fifty years old tube amplifier
  118. Big Boss: a simple and basic el84 PP amp in progress
  119. Line Stage for Mikael SE KT88
  120. DIY tube guitar amp oscillating, please help!
  121. Philips EL3536
  122. Tube Tester's
  123. Counterpoint SA-5000 P.S.U part identification needed
  124. 6GU7 in an Aikido?
  125. suggest about 9002/vt202 preamp please
  126. 7591a Alternatives
  127. tube rectifier plug in s-s replacement
  128. Oscillation in tube amps
  129. simple se cathode resistor question
  130. 6GT5 audio amp?
  131. How can a resistor "sound" good?
  132. Pin numbering, viewed from bottom or top?
  133. The Hybrid Class A amplifier
  134. 485V Regulated Power Supply
  135. 0B3 Glows Orange
  136. New Reissue tubes...Good/Bad???
  137. PP amp design , your thoughts please.
  138. Aikido + Phono section preamp
  139. Newcomb el84 amp
  140. Any Australians want to share shipping for valves from ESRC?
  141. 5718 Nuvistor ?
  142. Trimmer pot source?
  143. Pentode Miller Capacitance, and which spec value to use?
  144. Brother can you spare a preamp design?
  145. Reducing tremolo beating
  146. Russian tube equivelants
  147. Another question about russian tubes
  148. Why match tubes?
  149. My XPP OTL Headphoneamp
  150. Joining the Tubelab SE club
  151. Simple heater question
  152. Fender always taking care of tubes....
  153. Need small SET transformer (12B4)
  154. Red Hot 6L6GC
  155. How do these curves look?
  156. Why does lowering screen voltage reduce headroom?
  157. Class A2 Direct MOSFET Coupled SE
  158. Volume Surges Fender "The Twin" - transformer going?
  159. simple SE questions
  160. Best tubes for ~100w 1.9k p-p?
  161. Installing bleeding resistors
  162. Capacitor Comparison Conundrum
  163. Tubelab SE socket raise
  164. RH84 finish!
  165. cathode biasing question
  166. Modding an old tube amp???
  167. More snake oil
  168. simple se success!
  169. Rectifier swap out?
  170. Input impedance of tubelab simple se
  171. Capacitor tolerance
  172. Please comment my F2a SE schematic
  173. E80CC aikido
  174. Heater wiring help!
  175. Differential output stage: cap voltage?
  176. 6C41C in a PSU regulator?
  177. Filament Wiring - Shielded vs. Twisted?
  178. Transformer reflected impedance games? Overspec'd output power?
  179. SE 6V6 cathode resistor value
  180. Very strange gremlins in my phono PS
  181. which kit to build - first kit ever
  182. Does anyone know the plate reistance of a 6CW7/ECC84
  183. Shindo Claret
  184. se, srpp, pcb design criteria
  185. Looks like a promising SE build ??
  186. Apologies to Alex Kitic- RH84 Three Channel?
  187. 6L6 AB1 Push-Pull
  188. Jadis JA-30
  189. Black Gate "snubbing"
  190. New Schematic - PP UL 6V6-types, CCS-fed
  191. build up a new line amp
  192. How do you make a DHT amp REALLY HUM FREE????
  193. Experience with AnTek OPTs?
  194. 6V6 PP AB1 circuit
  195. Help with powering down a trafo
  196. Computer program for tube curves and Spice models
  197. Some help/advice with a guitar amp layout.
  198. Physical orientation of transformers
  199. Which EL34 tubes for Hi Fi
  200. Choke input power supply, capacitor ratings
  201. EL36/6CM5 SE design critique
  202. New 6F6 Amplifier Project
  203. Transformerless Tube Amp
  204. GE sealants: which to use?
  205. Bias supply and grid current
  206. US Army Russian Electronics Dictionary
  207. Speaker Pop!
  208. Steve Bench RIAA preamp users
  209. MAC free schematic drawing software?
  210. Using James JS-6123HS with EL84 SE is overkilled?
  211. Volume pot for simple se
  212. s5electronics 16ls schematic
  213. New to valve amps - given a 'project'
  214. Are there any loctal PC sockets?
  215. cheap and easy tube preamp
  216. Stereo bass problem
  217. SRS-360 East German transmitting tubes
  218. What the heck does a getter do ?
  219. Capacitor polarization help!
  220. MasterSound Tube Amplifier
  221. PC900 / EC900 curves
  222. 2x 12AX7 preamp fuse value
  223. Crackling Noise in Tube Amp (only) & PC Sound Card
  224. The Mullard 3-3
  225. Audio Research D125 Schematic?
  226. Glass B1. Need advise
  227. Eagle Library for OPT?
  228. Computing or measuring anode curves w/ CFB
  229. Northlake PT ??
  230. Greatest circuit ever (or weirdest)
  231. Advise for nervous EL84 user
  232. K-12G problems
  233. Changing AC heaters to DC
  234. Phase change when adding gain stage?
  235. XiangSheng Amplifier
  236. Grid stopper resistor for 12B4A?
  237. Lundahl LL1620 SE-OPT : Ultra linear ?
  238. Thordarson transformers
  239. Ampeg SVT cloners, chime in!
  240. Electra Print & SAC ( Silk )?
  241. Audio Transformer articles I would like copies of !
  242. K-12 with headphones?
  243. cap wire lead covers
  244. Single ended amp, EL34, KT88 ideas??
  245. Kt-66 and Simple SE
  246. Wavebourn Pyramid - VII driver stage
  247. Mysterious OPT winding tap
  248. DHT…. Get rid of the Hum Pot!
  249. Operating Amp Without Load
  250. Tube choices for Simple SE?

Content Relevant URLs by vBSEO 3.3.2