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

  1. 211- 6e5p full amp. The first setps
  2. E810F and general pentodes design question
  3. Pop goes the bias cap.
  4. High Power Single Ended Triode, Design
  5. Yaqin MS-6V6 vs. Markhill MS-6V6
  6. Schematic please: Luxman MQ-70?
  7. Aikido tube preamp with Tortuga LDR volume control
  8. Type 37 tube preamp
  9. Figuring out a KT88 datasheet?
  10. Power supply 260V for tube preamp
  11. Aikido Tube with Tortuga volume control project
  12. Adding a pre out to amp
  13. One or two ECC82 for two channels (crosstalk)!
  14. Red Pilot (240)
  15. 77:1 Output Transformer Question
  16. Power transformer recommendation Kt88 SE and JE labs Riaa
  17. Tube output power for OPT calculation
  18. 6sn7 tube anode folower question?????
  19. Goldox 9300
  20. good quality/sounding preamp advice
  21. PL84 schematic question.
  22. YouTube Video: 12AX7 comparisons.
  23. How many volts ???
  24. Greetings all/ (newbie) Need Advice!
  25. Psud and Single Ended Amplifier
  26. Socket Combiniations
  27. From Potentiometer to Stepped Attenuator
  28. No need for bleed resistors on Fisher 90-T
  29. Sophia 300B+ carbon
  30. Capacitor Temperature
  31. PL519 amp SE
  32. C3g Headphone design - will this work?
  33. Luxman 2A3 amp SE
  34. Capacitor on Aikido Power Supply Sampling Circuit
  35. Well, what have I done now?
  36. Aikido CF cathode resistor?
  37. D3A - 6P45S/El519 SE "The staircase" my first h-end amplifier.
  38. SET Cathode Biased vs. Fixed Bias?
  39. JAN6418 pre-amp advise
  40. SOHA II amp tripping
  41. 6JN6 LTspice model?
  42. unusual output transformers, what are they for?
  43. Cheap power amp kit with 6N2 + 6P3
  44. KT88 AMP I'm not sure about power supply
  45. buzz from tubes
  46. Good Power Supply??
  47. HK guitar amp - help with repair
  48. Audio Research SP6C
  49. Junk Audio Project (pics)
  50. SE SV83 Paralled Tube Amplifer
  51. Hum in SVP preamp circuit
  52. Advice/tips on tube preamplifier wanted
  53. Transformer Windfall. Now what?
  54. I am being cautious - need to install a ground plug
  55. My first scratch build (6AQ5 SE)....
  56. Pop, Pop, Pop, Pop, Pop
  57. what is this valve? and what is it for??
  58. Lazarus cascade basic preamp
  59. Seperate Power Supply Chassis and Grounding
  60. How To Solder Tips and Tricks
  61. Another CD player tube mod, TDA1541 with transformers and triode cathode followers
  62. PCL86 - Worth a try?
  63. Audio use 3D6/1299 ?
  64. How HOT should a LM317 get?
  65. KT88 amp questions
  66. Restoring a Motorola HS-1048A amp
  67. Please look at this schematic and tells me what have went wrong
  68. Lacking bass response after re-cap
  69. Generate a negative bias voltage?
  70. hammond 369ex instead of 269ex
  71. Recapped a pair of monoblocks
  72. Top Secret!
  73. Toggle or Rotary Switch for Phono Inputs
  74. Flexible tube (or SS) electronic XO
  75. LAVATORY - Lamp Valve Transistor Hybrid (will this work?)
  76. Transformer revers use question
  77. Fixed bias, cathode feedback?
  78. spudnik, spudMiG ?
  79. I need the KT120 base dimensions
  80. Need help with chassis layout.
  81. tube amp ID ?
  82. GU50 filaments voltage!
  83. Does anybody have an RCA RS171 Schematic
  84. Opinions wanted: Low Z SE power supplies
  85. DC heaters, best way to bias ?
  86. Ignition coil as SE OPT
  87. Opt color code identification (Onetics)
  88. Drawback to Larger Capacity Output Transformer Than Required?
  89. Send me some pictures of your amps
  90. leak stereo 60
  91. B2 Spice V5.0
  92. Mains Fuse and Switch Best Practice
  93. Identify these vintage tube amp rivets
  94. RCA ORTHOPHONIC LMI-32216A manual copy needed
  95. Question on strange 6l6 schematic symbols
  96. Resistor value?
  97. Paper / plastic hybrid capacitor
  98. ST70 chassis polishing
  99. Octal to RCA
  100. KT120 plate load for 150+watts
  101. Need a copy of Aikido 5687 manual pdf
  102. Nutshell Raven Headphone amp with balanced I/O
  103. Bartolucci: beware of him !!!
  104. Finding plate resistance
  105. Pleides Tube only headphone amp
  106. I think I know what I want (seasoned advice)
  107. CCS filament supply vs inductors for DHT
  108. Cap outer foil low impedance help...
  109. Distorted low end SE micro amp
  110. LM3886 + ECC82/12AU7
  111. My LCR phono with HUM....
  112. Winter 2A3 SET project.
  113. 6BQ5 pp with LM317 ccs
  114. maratz 7 clone
  115. Music Angel pre-amplifier - few modifications
  116. Transformer Questions (1st Amp Project)
  117. Morgan Jones and PS Bypass Caps
  118. Ruby Tuby at 24V?
  119. Budget Iron for Low-Power SET
  120. Output transformer mounting questions
  121. 3c24 preamp?
  122. Newb Q - JE Simple 2A3 as Monoblocks
  123. Vacuum tube amp design
  124. Counterpoint SA7.1 circuit question
  125. Variable Gain Control Topology
  126. Unknown amplifier, anyone recognice it?
  127. Harman Kardon "The Lute" A-220 - Repair manual?
  128. G2 input grid 6DQ6 push pull
  129. Schade SE 6550
  130. Heathkit aa-23 fix up
  131. 6SN7 Line Stage w/ Tone Controls
  132. Octal Heaven??
  133. how do i reach Chris the georgetown technician?
  134. mu follower bootstrap cap value
  135. POLL: The Legendary Williamson Amp Modified By SY
  136. 5Y3 PSU Question
  137. jolida 302b sweet sounding amp vs Audio Innovations 500
  138. MFA M120 any personal experience values and reviews?
  139. Scott 233D one channel bad - Next Project?
  140. Quickie GLA Tube Amp - whats the 1 ohm setting for?
  141. This Look Right?
  142. SIMPLE KIT with step by step instruction
  143. Ultra Simple PP ECC99?
  144. Heathkit Audio Analyzer
  145. The Best Valve Amp Design In Modern Time: Poll Candidates
  146. Current Requirements for Power Tubes
  147. Thermionic generator (Triode) appears to be real this time...
  148. Choosing Tube + OPT for preamp
  149. My first preamp with tubes
  150. Another New Guy Starting With %@&?~ Chinese PCB
  151. Question about output transformers.
  152. NEETS & Kirchhoff , I'm stuck
  153. Reviving a late 50's el84-based hifi
  154. Need a 7K a-a
  155. Tube ID
  156. Anyone know what these are?
  157. Let's Talk About Grounding
  158. Tube Pre Amp DIY Schematic
  159. Rectifier choice
  160. power transformer fo single tube ecl82 amplifier
  161. Today's Version of The Williamson Amp
  162. what's wrong with my calculations?
  163. Phono stage design considerations part 1: choosing 1st stage tube
  164. Can anyone suggest a practical use for this gauge on a tube amp
  165. Completed my 829 PPP w/ pmillet's driver pcb's.
  166. adding input transformer to Sony sra-2 tube preamp
  167. 6P45S 50W mono block tube amplifier
  168. Is it possible to drive 4xKT88PP with an AC coupled LTP PI?
  169. curious answer from CommonSense Audio
  170. Local Feedback for Push Pull Pentode
  171. Hickok Tv-7D/U A Setting not working
  172. Exotic interstage transformers
  173. DAC & Tube Preamp, Elevated Heater Question
  174. This Schematic Sounds Great
  175. Most Exotic MM phono preamplifier
  176. Fast track or How to utilize two 3-hole chassis for 20W+ monoblocks
  177. Strange noises on my Aikido power on
  178. lost capacitance
  179. Best SE KT66 schematic?
  180. Mixing old and new tubes
  181. Mullard 3 Tube 3 watt amplifier Question
  182. Darling Pre-amplifier using WCF for 1626's
  183. Is my tube broken? Which one should replace it?
  184. What Exactly Is Voltage Drop
  185. simplex (6c33c se amp) and stabilized current
  186. Transformers with dual primaries?
  187. Building the VTA, tubes4hifi PH16 Phono Stage
  188. K&E Preamplifier
  189. 12ax7:top psvane or top shuguang?
  190. Software To Help Design Tube Amplifier
  191. How can I drop B+ Voltage
  192. Eico HF-60's power supply.
  193. Need help with Output Transformer for EL84
  194. Where to reference filaments to ground?
  195. Maratnz 9 irons
  196. Noisy re-purposed MOT
  197. Mullard HQ Stereo Amp - Transformers Question
  198. C3g triode-strapped linearity question
  199. Making tube Rp disappear now
  200. 6E5P Connection Question
  201. Push Pull stereo amp bridged to monoblock operation
  202. Mr Blohbaum's Multiplied Transconductance Amp
  203. Vintage output transformer ID
  204. Getting Rid of Some Stickys
  205. Grid is Referenced To Ground through resistor? WHAT?
  206. Problem with CCSIC in Tubelab SE
  207. AP testing of the 6L6 SE
  208. output impedance
  209. 11BM8 heater wiring question
  210. Lower AC ripple on one side of coupling cap than the other side?
  211. HELP!! K12G Valve kit transformer
  212. 4 x EL34 or 2 x 6550 in a pp amp
  213. 5965 Telefunken tube U mh CO label ?
  214. 845 IT couple amp
  215. What makes an output tube "run away"
  216. P. Millett Engineers Amplifier
  217. Biasing problem
  218. Direct coupled driver stage - bias design
  219. Monoblock project
  220. Series DC Heater chain
  221. Tranformer advice for small powered amp.
  222. Circuit for testing tube/valve - Help!
  223. new Tubes for MHZS 33
  224. Teeny Tiny Spud
  225. Paging Andy Bartha
  226. 6ak5 / 5654 tubes in Kuala Lumpur, Malaysia
  227. aikido octal all-in-one manual
  228. Conrad Johnson MV75 help needed
  229. Leak tl12+ ECC81
  230. Kuba Serenade Stereo Console - Part II - New development - amp debug question
  231. Amperex AX569
  232. Marconi tube ID help
  233. ST-70 Input Stage, Explained For Extreme Beginners
  234. heaters connected to cathode?!
  235. HK Citation I rebuild question.
  236. tube 4-125A design
  237. Mod FISHER 100AZ-balanced input!?
  238. Akidio PS-17 CLC Resistance Value Choices
  239. More questions on parallel push-pull
  240. Inputs needed for Power Transformer Design!
  241. seeking advice about Welborne Labs kit
  242. 2A3 Design: Real World Gain Question
  243. 6M11 push-pull spud amp
  244. My first Console mod - Class is in session
  245. Wright Sound WPA 3.5 Power Transformer Replacement Options
  246. DF 96 tube
  247. S.A.C.T valve transformers
  248. Very strange....
  249. Advice Needed on PSU Over voltage
  250. Griffin G170 schematic needed

Content Relevant URLs by vBSEO 3.3.2