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. AVO CT-160
  2. Two cathode resistor bypass questions
  3. Home-Made Tube Guitar Heads
  4. What do you guys think?
  5. Antique Sound Lab Aq1003
  6. Audiomaster integrated (Valve) amp
  7. PP Amp using 811A
  8. Replacing ECC83 in Leak Stereo50 with ECC808
  9. 6N30/6H30 Datasheet
  10. Equivalents to 6888
  11. Input voltage
  12. Converting from integrated to pure amp
  13. Final schematic, I think?
  14. Toroidal core saturation
  15. Mystery SE OPT
  16. Is this a Spud Amp ?
  17. input cap V rating
  18. 6922 Heater - BIAS
  19. JJ 2A3-40 Watt?
  20. 12AU7 testing result: Are these tubes still good?
  21. "OTK" stamp on russian devices
  22. Where did nj7p.org go ?
  23. New to forum! Or: A few newbie questions
  24. Powersuply Le Bong?
  25. Fixed Bias: the ups and downs
  26. Bias Adjustment Question
  27. Multiple secondaries hook-up!!!
  28. Plate voltage related to sound?
  29. Array speakers & OTL
  30. First Post - Hum on 5687 Pre-amp
  31. DC powered amps
  32. Evaluating Unknown Power Transformers
  33. 0v grid bias with UL connection?
  34. LV Filament supply quandry
  35. which tube using NonDirect heat with best-class sound ?
  36. Surround Decoder - Subtract amplifier
  37. New To Forum - First Post
  38. Try to understand
  39. tube site
  40. OTL with 6S19P?
  41. What should B+ on 300B push-pull be?
  42. Regulated PSU with EL84
  43. How do I design minimum current for 35W PP AMP
  44. Buying bits'n'bobs...
  45. Can't make this address work.....
  46. schematics for 6C33 single ended OTL?
  47. Guitar amp input tube paralleled
  48. valve preamp
  49. trio W-38 problems
  50. Cheap Russian 2.2uF 400V PIO Capacitor
  51. Otl Se
  52. My 2A3 is being left behind
  53. SE for Bass?
  54. Wal-Mart power supplies
  55. Nice deal!
  56. Look for high-voltage regulator projects
  57. Typical plate Voltage for el34
  58. Arc Sp8
  59. New Phono amp - developing stage
  60. fender princeton 5D2.. DONE!
  61. CCS Bang for the buck output or driver?
  62. pentode driver sanity check - before i build
  63. 6av6 mini pre didn t work
  64. CCS in the output stage
  65. Looking for Schematic using KC3 Preamp ?
  66. If you are looking to try balanced AC power....
  67. The best Coupling cap (under $20)
  68. What makes a speaker "tube-friendly"?
  69. Using 6L6 for 300b driver
  70. Heater reference
  71. 6G15 output transformer selection
  72. Morgan Jones and cascodes
  73. 6A3/6B4G/6S4S(2A3/2S4S) project
  74. blues junior complaints and 6G15 question
  75. Question about changing a hybrid
  76. High-end Class A valve amplifiers will be illegal in USA?
  77. transformerless supply
  78. "Quasi" ultralinear experiment - questions...
  79. Help on a LUXMAN MQ 3600
  80. Changing from 6X4 to EZ81
  81. Design questions, driver stage for SE.
  82. S5 K-12G Question
  83. Ideas for a tube that heavily distorts ?
  84. CCS current sink in the output of my 2 tube 6080 amp.
  85. What do you think about my design (based on IMPAMP)
  86. spearinol oil (in ASC caps)
  87. Larger chassis Hole Punches
  88. HV Diode Selection
  89. Need help form Germany
  90. Output Impedance
  91. How to connect Gridchoke?
  92. Microphone In Guitar amp Question
  93. Triode connecting a pentode?
  94. help on line pre-amp
  95. Edcor P-P Transformers
  96. chassis work in NYC area
  97. low THD guitar preamp
  98. Please help ID this rectifier:
  99. Power Supply Voltage For 5881/6L6 Amp
  100. Audio Electronic Supply AE-25DJH
  101. Trouble: Main transfo short?
  102. help with chassis layout
  103. "Preamp" with remote (long)
  104. 6BY5 High Voltage & High Current Choke Input Design P.S.
  105. x-10 d and x-can version 2/3 schematics
  106. Ugly, but versatile, new amp
  107. Capacitor advice needed for AVA PAS rebuild
  108. Mic pre transformers
  109. Gain of JE labs 300B?
  110. Troubleshooting.
  111. new to the forum pre-amp
  112. Preamp output delay
  113. Super Triode Connection Amplifier Build with 6BM8 and 6AK5
  114. 1st project hum or buzz
  115. Impedans of trafo for EL504 inSE
  116. Can I use 2C39-B to sound
  117. usage of line out trans.
  118. eagle with tubes ?
  119. Rlim in GZ33 datasheet?
  120. LT1085 Current Regulation for DHT filaments
  121. Help Fixing Bias
  122. MC phono amp
  123. 10M45 Mu-Stage Idea?
  124. Hickok 6000A with 6C33 & 13E1...
  125. Isco 494
  126. looking for spice model of 6HA5 or similar tubes
  127. 6SL7 to 6SN7 substitution in power amp?
  128. Adding Subwoofer output to Aikido preamp circuit
  129. A request for PP 6c33c Schematics
  130. Thumping from left speaker when volume is low
  131. Crosstalk in twintriodes?
  132. Example Schematics?
  133. how to choose a rectifier tube? (specifically octals)
  134. Rather odd valve socket - anyone have any ideas?
  135. PS for GG - look for better channel separation
  136. help! T16 OTL schematic
  137. Bench PSU for tubes
  138. Tube Bogen J330 PA amp
  139. FM Stereo Tuner Tube Schematic ?
  140. Conn organ conversion to amp
  141. Smoking Transformer
  142. Questions on 1:1:1 driver transformer
  143. Pentode vrs Mosfet “MU-Stage”
  144. Transformer center tap connections
  145. dumb question :P KT88...
  146. Tube rectifier & regulator (modified)
  147. Some advice on this power supply
  148. Looking for Amperex C11550/1 data.
  149. Inserting tubes into Express PCB
  150. What do you think of this? (211 A2 SE)
  151. Help w/ diyAudio CCS implementation
  152. First DIY Amp Project
  153. HELP with PHONO and MIC preamps.
  154. CLC vs LCLC: is there any advantages other...
  155. Problem with old Heathkit
  156. Does anyone interested tube rectifier & regulator PCB ?
  157. Velleman K4040 conversion from EL34's to KT88's
  158. finished my PCC88 preamp
  159. Max 300B SE output possible with James 6123HS ?
  160. Who's right re bias adjustment versus plate voltage
  161. voltage current regulator
  162. Yarland 34 ciii amp
  163. CCS/5842/300B ground schematic.
  164. tube sockets
  165. PX25
  166. Research on tubes and circuits simple circuits
  167. using only 1/2 of a dual triode
  168. Some HMMM on my SRPP
  169. Grid Stopper
  170. diy tube amp problem
  171. The Red Light District - another PP EL84 amp
  172. Balanced 300B output for headphones or loudspeakers?
  173. 5692, the best?
  174. Power transformer quality differences
  175. Is it possible to use regulated DC for a rectifier tube?
  176. Transformer Secondary Power
  177. Phono preamp
  178. VR Tubes as Cathode Bias of 2A3 SRPP Loftin-White
  179. Physically small rectifier tube with 5V heaters
  180. Distorting 5687 preamp circuit
  181. Looking for a good 300B datasheet
  182. CCS is your friend!
  183. Valve Pre Amp & Class D Power Amp
  184. heater supply questions
  185. sub-mini valve
  186. Amp kit recommendations
  187. First amp for a new in valves
  188. Loud buzz and hum from one monoblock!!!
  189. Stueyh
  190. Big *** '50s Power Supply, now what? 300B SET ideas...
  191. Phono Preamp Design Needed
  192. antique fender bassman 50 retubed HELP
  193. Severe oscillation in 6L6 amp
  194. How to tweak warmth to a power amp?
  195. Can anyone explain me this Loftin White amp?
  196. Substituting dual triodes
  197. ValveWave-1 My first Tube Project
  198. changing output capacitor value? what should I consider?
  199. motor run caps in the output? good or bad idea?
  200. resistors across the heater voltage then the middle is grounded
  201. Switched Pot Source Needed
  202. transcendar transformer
  203. Installing tubes upside-down? Bad? Maybe it doesn't matter?
  204. Voltage Multipliers
  205. I want to build an AM Tube Tuner
  206. Tube Amp CCS?
  207. S-5 Electronics Tube Amp Kit
  208. Tube amps from eBay (China)
  209. filament supply: batteries v TentLabs?
  210. replace a 5651 tube with a zener?
  211. tube design books
  212. Bogen chb100 input conversion suggestions
  213. MesaBoogie 400+ clone
  214. EL34 in place of a 6AS7G (used in the supply circuit as a pass tube). how?
  215. R-core xformers from China
  216. Counterpoint Service manual wanted
  217. Two chokes in one pot?
  218. help with a transformer
  219. 311T (211 alike) HIGH power triode
  220. Re-attaching anode cap to 805 or 811A tube
  221. "Fisher Doctor"
  222. Aikido + class D in the output stage
  223. tube-shop-com
  224. Ultrasonic heaters
  225. Grounding the Filament Winding
  226. Lundahl LL1680 for balanced output
  227. Website is back & new books posted
  228. strange tube G1 S/5
  229. First Tube Amp Needs an Overhaul
  230. pspice models for tubes
  231. Source for iron cores?
  232. Quad EL84 SE question
  233. Use of 12j1l and gu-50 tubes
  234. Shuguang 300B-98C
  235. Philips AG-9016 Upgrades???
  236. My DIY Pre-Amplifier used 5692 and 45 Tube with output transformer
  237. tube amp in a PCB with a toroidal xformer beside it?
  238. Need advice running 220v in USA
  239. My Fender Princeton FD2 chasis (clone)
  240. Parallel-Push-Pull KT66 organ amp conversion ???
  241. new on tubes
  242. Balance 5687 pre-amp any advise??
  243. The Limitations of an EL34 in UL
  244. Source for tube bases....?
  245. 10Y, 26, 27 and 45: relative microphonics
  246. KT77 Mod Question/Idea/Punshishment
  247. KT88 SE with Edcor xfrmr
  248. Diy Distortion Pedal
  249. 45 fans – expanded horizons upstream?
  250. 12B4a Cathode Follower

Content Relevant URLs by vBSEO 3.3.2