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 99 100 101 102 103 104 105 106

  1. grid LED bias?
  2. Help on tube socket
  3. Taking CFB to the extremes...?
  4. Output section impedance change query
  5. Tube Suggestions
  6. 82 Popped
  7. OPT Project for EL84 SE
  8. Interesting eBay "listing" for tube amp
  9. How to chose the right choke
  10. Eco warrior thinking of jumping ship !!!
  11. HELP! Cathode bypass caps keep going...
  12. Best Operating point for a 2A3?
  13. Need help with preamp
  14. Best place to buy valves and components?
  15. Replacing cathode resistors of Aikido 1st stage (or other SRPP circuit) with chokes
  16. Circuit calculations
  17. Finally going to give my TVC/active preamp a real home...
  18. Suggestion on the input transformer for tube preamp
  19. sylvania & GE tubes
  20. SE Amplifier
  21. "fisss" on the 6C33C-pp
  22. Best price for tube output and power transformers ?
  23. What kind of output transformer?
  24. transformer
  25. 20W PP Choke PSU Question
  26. Regulated B+ supplies (using tubes)
  27. Confused by the numbers
  28. Feedback on Thorsten's legacy "universal dht" amp
  29. Are there techniques for triode-strapping on the fly?
  30. PROJECT begins: bass preamp
  31. The best bias point for KT88
  32. All tube CCS
  33. GU50 SE Amplifier class A , with 6SN7 Full construction details
  34. 50L6GT & 6L6GT sounds ??
  35. Especially for Tubelab: 845 amp 2.0
  36. Mini guitar amp from a Webcor tape amp, is it possible?
  37. Powerdrive
  38. Filament voltage and affect on Rp
  39. Tube pre-amplifier PSU
  40. Help with a cathode coupled pentode driver?
  41. Amp that has the biggest number of irons
  42. 12AX7A replacement
  43. Bogen CHB-10A Conversion, need help and advice
  44. Who said it was a good idea to try pentode!
  45. Input level
  46. 6V6GT
  47. 6AR6
  48. Any TCJ Push-Pull Calculator users?
  49. 211 Push pull operation points
  50. Edcor CXSE25-8-4K vs Hammond 1628SEA?
  51. Bass guitar preamp
  52. 50W KT88 PP w/ NFB on Bonavolta
  53. Looking for nuvistor pre-amp preamp schematic please. 6CW4?
  54. BELL 3030 Amplifier
  55. Diy Paradise!
  56. Another PP 6B4G
  57. How to get a buffer with overdrive from a 12AX7 ?
  58. Pulsating Glow
  59. Question on using glow tubes (v-regs)
  60. Eliminating the OPT: impedance matching
  61. KT88 and push-pull ultra-linear
  62. Positronic Tubes
  63. Paint steel chassis with the "aluminum paint" used on wire fence?
  64. Best bias for 6cg7
  65. Coupling caps test bed
  66. 829B Based Amp
  67. slight hum still haunting me
  68. CCS bias question
  69. Can't get solder to stick
  70. EL84 amp plus subwoofers? STUPID? OR NOT?
  71. Johan Potgieter
  72. parallel sections
  73. PL504/EL84 SE vs parafeed
  74. [help] Look for McIntosh MI-200 Circuit diagram
  75. My experience: the cheap punch set VS Greenlee punch
  76. 6V6GT SE schematic -need!!!
  77. What's the deal with Broskie's iPod buddy?
  78. a quiz about AC power
  79. Beard P100 Amplifier
  80. Quick identification question
  81. 6V6 guitar amp design attempt
  82. Some more RIAA questions
  83. what to do?
  84. A suspect EL34
  85. Best way of reducing heater voltage?
  86. Musical Instrument tube amp part suppliers
  87. tubelab
  88. My first power amp
  89. El34 SE pentode
  90. All Electron Tubes Manufacturers
  91. Mu stage driver
  92. two questions on Parafeed amplifier
  93. 6AU5GT
  94. Connection advice
  95. 'Tube'-ing a reel-to-reel player.
  96. EL34 make up by PCB
  97. wanted RIAA schematic
  98. What is the best software to create tube schematic
  99. Soft clipping acceptable?
  100. help for this amp
  101. Pentode PP amp for comments, please
  102. 966A rectifier
  103. 938 power triode
  104. PL36 PP Amplifier 22W Full construction details
  105. Quick question about the output of my amp
  106. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  107. An "All American" tube Project
  108. Aikido and output transformer
  109. Why are Hammond SE OPTs dissed? Heavier than the competition...
  110. Driver stage headroom
  111. Help me before I deal hot electric death to myself (PS question)
  112. AVO CT-160
  113. Two cathode resistor bypass questions
  114. Home-Made Tube Guitar Heads
  115. What do you guys think?
  116. Antique Sound Lab Aq1003
  117. Audiomaster integrated (Valve) amp
  118. PP Amp using 811A
  119. Replacing ECC83 in Leak Stereo50 with ECC808
  120. 6N30/6H30 Datasheet
  121. Equivalents to 6888
  122. Input voltage
  123. Converting from integrated to pure amp
  124. Final schematic, I think?
  125. Toroidal core saturation
  126. Mystery SE OPT
  127. Is this a Spud Amp ?
  128. input cap V rating
  129. 6922 Heater - BIAS
  130. JJ 2A3-40 Watt?
  131. 12AU7 testing result: Are these tubes still good?
  132. "OTK" stamp on russian devices
  133. Where did nj7p.org go ?
  134. New to forum! Or: A few newbie questions
  135. Powersuply Le Bong?
  136. Fixed Bias: the ups and downs
  137. Bias Adjustment Question
  138. Multiple secondaries hook-up!!!
  139. Plate voltage related to sound?
  140. Array speakers & OTL
  141. First Post - Hum on 5687 Pre-amp
  142. DC powered amps
  143. Evaluating Unknown Power Transformers
  144. 0v grid bias with UL connection?
  145. LV Filament supply quandry
  146. which tube using NonDirect heat with best-class sound ?
  147. Surround Decoder - Subtract amplifier
  148. New To Forum - First Post
  149. Try to understand
  150. tube site
  151. OTL with 6S19P?
  152. What should B+ on 300B push-pull be?
  153. Regulated PSU with EL84
  154. How do I design minimum current for 35W PP AMP
  155. Buying bits'n'bobs...
  156. Can't make this address work.....
  157. schematics for 6C33 single ended OTL?
  158. Guitar amp input tube paralleled
  159. valve preamp
  160. trio W-38 problems
  161. Cheap Russian 2.2uF 400V PIO Capacitor
  162. Otl Se
  163. My 2A3 is being left behind
  164. SE for Bass?
  165. Wal-Mart power supplies
  166. Nice deal!
  167. Look for high-voltage regulator projects
  168. Typical plate Voltage for el34
  169. Arc Sp8
  170. New Phono amp - developing stage
  171. fender princeton 5D2.. DONE!
  172. CCS Bang for the buck output or driver?
  173. pentode driver sanity check - before i build
  174. 6av6 mini pre didn t work
  175. CCS in the output stage
  176. Looking for Schematic using KC3 Preamp ?
  177. If you are looking to try balanced AC power....
  178. The best Coupling cap (under $20)
  179. What makes a speaker "tube-friendly"?
  180. Using 6L6 for 300b driver
  181. Heater reference
  182. 6G15 output transformer selection
  183. Morgan Jones and cascodes
  184. 6A3/6B4G/6S4S(2A3/2S4S) project
  185. blues junior complaints and 6G15 question
  186. Question about changing a hybrid
  187. High-end Class A valve amplifiers will be illegal in USA?
  188. transformerless supply
  189. "Quasi" ultralinear experiment - questions...
  190. Help on a LUXMAN MQ 3600
  191. Changing from 6X4 to EZ81
  192. Design questions, driver stage for SE.
  193. S5 K-12G Question
  194. Ideas for a tube that heavily distorts ?
  195. CCS current sink in the output of my 2 tube 6080 amp.
  196. What do you think about my design (based on IMPAMP)
  197. spearinol oil (in ASC caps)
  198. Larger chassis Hole Punches
  199. HV Diode Selection
  200. Need help form Germany
  201. Output Impedance
  202. How to connect Gridchoke?
  203. Microphone In Guitar amp Question
  204. Triode connecting a pentode?
  205. help on line pre-amp
  206. Edcor P-P Transformers
  207. chassis work in NYC area
  208. low THD guitar preamp
  209. Please help ID this rectifier:
  210. Power Supply Voltage For 5881/6L6 Amp
  211. Audio Electronic Supply AE-25DJH
  212. Trouble: Main transfo short?
  213. help with chassis layout
  214. "Preamp" with remote (long)
  215. 6BY5 High Voltage & High Current Choke Input Design P.S.
  216. x-10 d and x-can version 2/3 schematics
  217. Ugly, but versatile, new amp
  218. Capacitor advice needed for AVA PAS rebuild
  219. Mic pre transformers
  220. Gain of JE labs 300B?
  221. Troubleshooting.
  222. new to the forum pre-amp
  223. Preamp output delay
  224. Super Triode Connection Amplifier Build with 6BM8 and 6AK5
  225. 1st project hum or buzz
  226. Impedans of trafo for EL504 inSE
  227. Can I use 2C39-B to sound
  228. usage of line out trans.
  229. eagle with tubes ?
  230. Rlim in GZ33 datasheet?
  231. LT1085 Current Regulation for DHT filaments
  232. Help Fixing Bias
  233. MC phono amp
  234. 10M45 Mu-Stage Idea?
  235. Hickok 6000A with 6C33 & 13E1...
  236. Isco 494
  237. looking for spice model of 6HA5 or similar tubes
  238. 6SL7 to 6SN7 substitution in power amp?
  239. Adding Subwoofer output to Aikido preamp circuit
  240. A request for PP 6c33c Schematics
  241. Thumping from left speaker when volume is low
  242. Crosstalk in twintriodes?
  243. Example Schematics?
  244. how to choose a rectifier tube? (specifically octals)
  245. Rather odd valve socket - anyone have any ideas?
  246. PS for GG - look for better channel separation
  247. help! T16 OTL schematic
  248. Bench PSU for tubes
  249. Tube Bogen J330 PA amp
  250. FM Stereo Tuner Tube Schematic ?

Content Relevant URLs by vBSEO 3.3.2