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. Optransformer for 6B4G?
  2. OLSON TUBE AMP AM-158
  3. 6922 preamp idea
  4. Tube SPDIF output
  5. One power tube going hot at idle
  6. schematic to learn by
  7. Audioromy schematic
  8. 8236's
  9. Need a 4060 model on LTSpice
  10. vt86pp 6v6
  11. SALAS hv with 150V
  12. Fender Tweed Champ Kits/Parts
  13. Aikido 12Vac
  14. Looking for expertise in adjusting Williamson amp
  15. Help with elevating a heater supply
  16. Preamp EQ
  17. Need help identifying this amp
  18. Phillips FX737A Rectifier
  19. wiring a transformer on a Scott 299
  20. DC/DC stepup for valve projects
  21. 807 SE Amp
  22. HELP With VOX AC100CPH
  23. Stromberg Carlson ASR 220C blowing fuse
  24. EF806 pentode + CCS
  25. Transformer Identification
  26. Hickok 800A line adjust problem
  27. Heathkit AA 121 parts
  28. Conrad Johnson PV-8: how to convert 110v to 220v
  29. Help me understand Edcor wiring?
  30. Another paralleled to single push-pull EL84 mod.
  31. Sca35 tone controls
  32. Tube preamp noise
  33. Fountek Tube Amp
  34. Choke & Transformer Positioning Problem
  35. The adventure time tube amp- Did any catch it?
  36. Input wiring question
  37. Let's talk triode-pentode
  38. Tried failed, looking for suggestions
  39. Need HELP converting Bogen MX30a pa into a preamp for recording
  40. Edcor Wrong Transformer...
  41. 812A Build
  42. Still not sure where to start
  43. Will cooling fan extend life of old caps & transformers? Or just make worse w dust?
  44. RCA tube amp woes/hum/ground
  45. EF86 microphony
  46. John Broskie Kits
  47. Refurbish Conrad Johnson Premier Eight
  48. 4tube Philco amp project...
  49. Thoughts on bias for PPP
  50. 2012's Acquired Parts- ..Custom Build Anyone?
  51. Can I use a variable voltage cieling fan switch as a variac?
  52. Audio research LS2 hiss and hum... need help
  53. saba electro sound
  54. Ra on C3g and 6C45pi?
  55. Partial Feedback System
  56. An Electronic Loss Compressor
  57. K-12g one channel louder than the other
  58. Sun SV2a3 or 45?
  59. Red imP(asse)
  60. An application of C-Vac: the SolidGlass amplifier
  61. Fixing crooked laminate stacks?
  62. EF184 driver
  63. Woo Audio WA7 temperature
  64. Resistor w/cap or LED or battery bias?
  65. Transformers Back to back vs. Voltage Doubler
  66. 211: 75W or 100W?
  67. Does really need a balanced preamp ?
  68. Power Transformer Hum
  69. Options for how to use this old tube PA amp? > 200W
  70. Flash getter question
  71. Heath W4 Output Xfmr - anyone measure one??
  72. Tube buffer with 6n3-EV
  73. First time with hi-fi, need some advise with amp desing
  74. Newbie wants to build SET 6C33C
  75. Another PP GU50
  76. SE Waveform
  77. Problem with CCS for filaments
  78. UL / Distributed Load - Screen vs. CFB Winding Ratios
  79. 50W PP - KT88 Build
  80. OP Tx and PPP to PP change over
  81. I need a little more advice on a Glassware Janus shunt regularor
  82. Pentode noise
  83. Dynaco ST-35 Circuits
  84. BIG Transformer Covers - Where to Find?
  85. Amplification breaks up after some time
  86. 6A5G schematic; changes from the 6Y6G tube
  87. ECC83 differential preamp optimisation
  88. 6Y6G SE SCHEMATIC NEEDING HELP!
  89. Need help identifying this tube...
  90. AMI DD project. Someone did some mods before me and I don't know whats what.
  91. (v?)Tailor PA-500 Tube Amp
  92. Transformer arrangement?
  93. Don't be stupid, you can't possibly do that with output transformers?
  94. Maximum Plate/Screen Voltage 6550 in UL
  95. Paper insulation for output transformers?
  96. Best PP OPT 30-100W range
  97. Tripath TA2020 + 6N3 Tube buffer
  98. El34 as triode
  99. tube preamp vol ctrl -- before or after?
  100. matisse preamp -review
  101. Ribbon Microphone Preamp
  102. Looking for tubes 6CL8 pentode Triode with lower output ratings
  103. Reducing Signal Level Without Affecting Tone
  104. VTVM/VOM???
  105. Micro amp - all-tube, direct heated, portable and IT FITS
  106. Wiring a 6AS7G to be Push Pull within its own envelope
  107. Wima MKP
  108. Will this circuit work ?
  109. new amp build
  110. MKP DC-LINK vs electrolytic power supply 4 tube amp
  111. Looking for ECC81
  112. Unison Research S6 (old version) auto or fixed bias?
  113. Troubleshooting a restored Edison 12 valve amplifier
  114. Counterpoint SA-220
  115. LTSpice models needed
  116. Magnavox 6V6 amp upgrade
  117. breadboard for tubes
  118. Looking for ideas... 50W OPTs
  119. SE Power Supply PCB
  120. Speakers for the 16LS Stereo Tube Amplifier
  121. will E80CF fit into yaqin 100b
  122. RH84 Rev2 Build w/Premium parts
  123. Single ended KT88 / 6SN7 not enough power
  124. Problem with push-pull KT88
  125. opinions please!
  126. Tube testing 101?
  127. Top aluminum plate from ProtoPanel.com
  128. 6GK5/300B
  129. Screen driven sweep tubes - the return of the evil kink?
  130. Parafeed 45 amps
  131. Has anyone tried the 6p1p EV?
  132. ECC88 mu-follower
  133. Reducing gain of a WE91 type amp
  134. 6sn7 mu-follower
  135. AES Preamp mods
  136. Oh! Darling
  137. Testing 3B22 on Hickok 752a
  138. Has anyone ever used the 6C41C in PP?
  139. RH 6V6
  140. Unholtz-Dickie amp, 4-1000's
  141. Somewhat Newbie..
  142. grounding RCA inputs
  143. ESS9018 I/V
  144. Catode follower with 6N7S (6n7GT)
  145. Recommended RIAA Values for this Circuit
  146. PC board design for PSE amp
  147. Audio Research SP-11 HV Regulator
  148. heathkit SA2
  149. russian 1578 tube production years
  150. partial list of tubes I have
  151. Bench Power Supply Questions ?
  152. Identify this tube?
  153. your input - bulb / led / neon selection for short tester
  154. Potted choke orientation/amp layout
  155. Tamura F-2012
  156. Joining output windings
  157. B&K 650 tube tester
  158. 5687 LTSpice model needed
  159. Can you identify this transformer? 70V line matching?
  160. I had to post this..the 211 in all its glory!
  161. Help with preamp/driver/output setup
  162. Accident - Shorted Cathode to grid!!
  163. Correct B+ for EL84 UL PP
  164. RH807 output transformer....what did you use?
  165. Headphone tube amp with balanced output?
  166. Tube buffer with 6n1p-EV
  167. First little SE
  168. ID Nice Unknown Tube
  169. Bell and Howell Model-601
  170. what should my mulit reader be on to bias yaqin 100b
  171. Fixing an old Tandberg Huldra 6 Radio
  172. 30W sweep tube amp
  173. Atmosphère S-40 with KT88, does someone know about this amp?
  174. What happens when Output transformer max voltage (slightly) exceeded?
  175. what type is the best?
  176. Kiwame carbon resistors
  177. Rocker Switch Wiring
  178. RH6550
  179. Diodes for Marantz 8B
  180. Diodes for Marantz 8B
  181. Telefunken 2430 Opus Resistor Burnout
  182. yaqin 100b with 2 different kt88 valves 2 are Genelex Gold Lion and 2 are Svetlena wi
  183. Conrad Johnson MV40 copy and Fisher OP's
  184. Are EF86 Tubes inherently microphonic?
  185. Counterpoint SA-1000 Hum in left channel Pinging Anatech!
  186. Need a rectifier tube...
  187. Looking for Harman Kardon Allegro A-10 Schematic or PhotoFact.
  188. How much spl can a triode take?
  189. Octal CCDA kit - help needed!
  190. Mod input of 6AU6/6AQ5 amp for iPod
  191. Put a tube on your PC just for fun..
  192. ST35 Cathode Feedback
  193. Series Shunt tube regulator
  194. Help ID this tube ^&$**@# lettering!
  195. Adding a db VU meter to an existing tube mic pre
  196. Quad 22 interstage cap?
  197. First test of my AX84 HI-octane
  198. 4P1L triode PP (40W!!?)
  199. KT88 shootout vintage vs new vs 90
  200. Help needed to identify this british made Amp
  201. PSU II Question
  202. Quality tube buffer with ECC83
  203. K12g Amp Question
  204. Stark 9-66 tube tester - repair help
  205. output transfo problem
  206. Pair of Fisher CA-40 Oddballs
  207. Model 601 tube amp.
  208. Model 601 Tube amp
  209. First power amp build. Is this normal??
  210. Compactronized 6146
  211. Preamp and inverter on B7G base tubes circuit.
  212. Advice and Suggestions on Amp designs
  213. Help who tube buffer x10-d
  214. EL803S-6CW5 / EL86 amp design check (schematic attached)
  215. amp buzz in one channel on inrush / power on
  216. SE 8-10W monoblock build help
  217. GlassWare Tube CAD
  218. SMD Parts and the DIYer
  219. 6CW5 / EL86 operating point
  220. RH84 power output
  221. 6n6p-ir
  222. Transformer bubbling
  223. Crackling noise.... pls help on Pre-amp
  224. RH84 amp. Plate is 300V. What voltage...
  225. Amplificator Class A 2 X EL504
  226. Help in testing 12ax7 and 7869 tubes
  227. Micro-Cap Tubes Parameters question
  228. Cathode Bypass Capacitor
  229. NOOB ALERT! sooo omany questions.....
  230. IS THIS A REAL E810F ???
  231. Chassis design question / cooling of small signal valves
  232. 5 leads pp output transformer
  233. Vote and Comment: SRPP vs. Aikido vs. Grounded Grid
  234. NEED ADVICE ON THIS SCHEMATIC AND WILL IT WOFK
  235. Help Identifying a Console Pull Amplifier
  236. sunaudio 2A3 circuit...is it good for newbie?
  237. KT120: When does it starts to sing ?
  238. Simple Time Delay (no more excuses for not having one)
  239. Cary SLP-05
  240. 6SN7 Grounded Grid
  241. input selector switch replacement help
  242. help needed with transformer wiring
  243. Tube Schematic Drawig Packages
  244. 12AU7 - 5V4G easy amplifier
  245. Glassware CCA 9-pin PDF
  246. Replacement for the tube 6922 (ECC88)?
  247. Which probes for my first scope?
  248. PP CATHODE BIAS WITH "CCS"
  249. current output tube amplifier
  250. Tube amp for a small room (newbie-like)

Content Relevant URLs by vBSEO 3.3.2