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

  1. SACThailand
  2. You know you're a tube junky when...
  3. 6AU6 to do EF86 duty?
  4. 6Н28Б-В datasheet?
  5. Is single ended Class A better than push-pull?
  6. Is 845 better than 211 tube amplifier?
  7. Cool Fireworks (tubes are tough!)
  8. Big Big hum ???
  9. 5687 filament heater question
  10. Anyone know agood MOSFET drive for RCA 811A Tube?
  11. Who is into musical instrument tube amplification?
  12. buffer stage ECC88 or ECC83?
  13. EL34 Integrated
  14. Solid state HT regulator??
  15. Tubes driving dipole mids
  16. How do I turn an high current signal into a line level signal??
  17. Peer review, UL question
  18. Grundig TK60 - Where is the Line Out ?
  19. 12AX7, EL34 or 6L6 design wanted
  20. RCA to Speakers?
  21. Morgan Jones - Valve books
  22. Any one tried to use subminiature for input tubes?
  23. Tube data for current manufacturers?
  24. Pentode to Triode Switch
  25. fried Heatkit IP-17 power supply
  26. Suggestions for Tube Amplifier
  27. SMPS for 300B heater ?
  28. What does this mean?
  29. heater/cathode query
  30. Bottlehead S.E.X Amp
  31. Old Meets New
  32. 6336-SE modification
  33. 6as7 pre-amp questions.
  34. Help in calculating NFB loop.
  35. ECL86 - quick and dirty
  36. Help! Q? about Ohm load in '59 Bassman RI
  37. preamp tubes change
  38. Parallel PP ECL86
  39. Anyone build a Minimal Reactance PSU?
  40. Transformer hook-up question to 115V AC line
  41. Langevin Schematic Archive
  42. PPP EL84 Amp
  43. Interesting comparison between NOS RCA 12ax7, Chinese 12ax7a
  44. Aikido: Width control
  45. Shielded Input Wire
  46. choke
  47. Multiple Inputs in One Shielded Cable?
  48. Presence control on a SE ?
  49. Question : pentode ccs schematic ?
  50. right capacitor value?
  51. Anybody knows this tube--WE 430C
  52. Transformer substitution help
  53. CFB Issues
  54. Please Suggest: Old Tube Usages
  55. Very powerful push/pull circuit
  56. Project choice for KT88
  57. Tamura F-475 in Parafeed?
  58. Kofi Annan in: "Push and Pull with Me"
  59. Schmitt dephaser
  60. Anyone using Chelmer Valves?
  61. SET w/ 300B Ultrapath + Parafeed Typologies
  62. a question about local feedback
  63. about input transformer
  64. Power transformer selection madness
  65. EF91 Line Stage questions
  66. Sourcing parts for Dynaco PAS rebuild
  67. HH Scott 223 monoblock schematics
  68. info needed on the 7c6 tube
  69. A final question on grounding(yeah right!)
  70. Schematics and Manuals Site Found
  71. Sprague/Cap Color Codes ?
  72. saba console radio working?
  73. Feedback and mu-followers
  74. Hundreds of 6AL5s
  75. Orange/Red Spot on The Anode of Sovtek 6L6GC
  76. Best way to isolate non-isolated RCAs?
  77. Power Resistor Smoking on HF-81
  78. Audio Innovations L-2
  79. first tube project
  80. And now a question about power switch...
  81. 2E24 ultralinear
  82. tube pin numbers
  83. Will This possibly work?
  84. What is the right current for a 300B at 400V and -80V grid bias?
  85. Simple Cap-Coupled CF Advise Needed
  86. tube amp layout reality check
  87. plitron
  88. How long does a 7199 last?
  89. Modding Tube Mixer Into DAW Front End
  90. CAE Cascode Diffamp Front End
  91. recommended resistor wattage
  92. 6.3V Rectifier Tube Lit by 5V
  93. Precision Electronics Amp w/ 6GT5's, Convert to 6L6's?
  94. WE121A, Please critique me
  95. Grommes / Western Electric G5M Tube Mixer Mods
  96. schemes needed
  97. PP to PPP
  98. aikido voltage swing
  99. voltage drop across a CCS...
  100. bogen db20 Schematic
  101. Mullards branded as Telefunkens???
  102. Pentodes; plate resistance; damping...
  103. PP amp has become SE?
  104. anyone mod a NYAL Moscode superIt?
  105. update to phillips sepp otl?
  106. DC filament supply LC or CL
  107. No Bass Control
  108. Unison Research Simply2 or s2schematics
  109. Border Patrol Power Supply
  110. Any leads on repairing a vintage Alamo Capri tube amp? >>
  111. nanocrystalline amorphous OPT
  112. El84 Pp
  113. Preamp, Euridice?
  114. Has anyone built a PS like this?
  115. Tube sockets in Eagle?
  116. E235L tubes
  117. Grid Input Transformers
  118. Aikido Power Supply
  119. ralph power pp amp with 807 ?
  120. fender clone, 6SJ7 vs. 6SN7
  121. tube stores in moscow
  122. 211 and 845
  123. Need help with amp
  124. Altec 1570B
  125. UL to triode
  126. How can I improve this tube amp (see pics)?
  127. klimo merlin preamp sch wanted
  128. CCS question
  129. *****es brew step 2 ... or grid bias ... how to?
  130. Filaments for the Aikido
  131. RE: RC-19 or RC-30
  132. My experience building a DRD d3A/300B amp
  133. TIP50 + LM317 High Voltage Regulator
  134. Any info on old "Cosmos" amp'?
  135. What more do I need to know?
  136. EBAY Find Of The Year Club LOL
  137. Partial feedback DHP SE amp
  138. newbie question
  139. Tube 1616
  140. Class A tube integrated circuit request
  141. Global Feedback Source Point
  142. These look interesting for that SE project
  143. Phillips AG9008 amp - looking for diagram
  144. 3cx3000
  145. EL86 and speakers? 800 Ohm
  146. Looking for CAT SL-1 Schematic
  147. el84 - 807 ?
  148. Low-voltage Tubebuffer by David Lin
  149. changing diodes with 5AR4 tubes
  150. 801 amp PS
  151. what can I do with these tubes?
  152. How to 'fine tune' your amps?
  153. Otl
  154. Rogers E40a schematic?
  155. Peavey Triple X Rewire! Help!
  156. Butler Monad A 100
  157. Using the UTC LS-33 as a Push-Pull output for 2A3's
  158. 2A3 AC filament hum
  159. A question about diodes...
  160. 5R4WGY/A/B , input filter capacitors
  161. attenuator hook up?
  162. best material for mounting tubes sideways
  163. Amp suggestions needed
  164. CC vs EI I mean toroids are out of question
  165. Newbie need help in designing tube preamp for my 3886 GC??Please Help me!!
  166. Inviting Comment on Schematic
  167. SE 2A3 input stage
  168. DIY Tube Amp Questions
  169. Need tube buffer circuit for sub-woofer out
  170. How to connect electrostatic shield of power transformer?
  171. Your favourite filament supply for DHT's?
  172. Quantum Impex
  173. Channel Switching Real McTube?
  174. so who owns a dac5 or m8 phono
  175. OPT at frequency extremes
  176. Parafeed with resistive load
  177. EL34 SE triode mode A class sch wanted
  178. Dumont (where theres smoke theres sound)
  179. HYBRID- Schematic
  180. I have a pair of JBL control 5 speakers, which valve amp design you recommend?
  181. sovtek 300B
  182. 12au6 preamp
  183. Engineering Drawings PCB Mount Tube Sockets
  184. Help with a choke for first-time DIY...
  185. Power SRPP
  186. Anode Loading Vs. Cathode Loading ?
  187. Purist 2 Line Amp
  188. Yet Another "EURIDICE" Pre Amp, 4CH This Time
  189. radio receiver
  190. Help Vintage Guitar Hummer
  191. Pioneer SM83 and 500k pot
  192. How many ways to connect a pentode...
  193. How do I go about repairing a vintage Pilotone AA-410A monoblock tube amp?
  194. Any pitfalls to tapping voltage doubler?
  195. 5k to 100 or so line transformers
  196. Ongaku 211 and Supravox 215
  197. Help with 6B4G PP amp.
  198. Help me build my Choke I/P preamp PSU
  199. Pinging "DoomPixie"
  200. 6L6 mono amp questions
  201. Help on 300B power trans...
  202. Spud Farmin' Pt. Deux
  203. No Zen
  204. Reuse or rewind choke
  205. Bell Sound Mono Integrated Amplifier
  206. Help with Melos SHA repair
  207. diy guitar tube amp help.
  208. Phase splitter transformers
  209. 6v6 schems
  210. Cathode feedback
  211. Is this a good choice for El34 PP
  212. 6DK6 amp schematics?
  213. so who here builds amps
  214. 3:1 Line Input X-former ?
  215. * 35 watt * 300B SE = super 300B + Class A2
  216. Quirk in Mullard 5-20 circuit
  217. LL1673 as anode load?
  218. preamp/power amp matching
  219. 0A3 and pentode questions (quickie)
  220. where to find transformer to use
  221. C core output design
  222. Unusual Motorola Console
  223. Improving the Aikido line stage...
  224. Poll..anyone interested in an Aikido linestage PCB group buy?
  225. New 6s45p compare to NOS?
  226. Elektra Print L-3500
  227. 300b tube cage
  228. The 'Tater Patch
  229. 2A3 Sovtek characteristics
  230. 300b filament q, yes another one.
  231. Amp repair help needed.
  232. 833a SE Peak A.F. Grid Voltage
  233. DHP driver for 845
  234. Fisher 55-a
  235. Ultralinear Miller capacitance
  236. Simplest OTL?
  237. presence control
  238. Black Gate N cathode formation voltage
  239. Any other reported fragility for 6H30pi?
  240. Help! circuit diagram
  241. Another Gm70 amp !!
  242. 833a Amp 75W SE
  243. Black Gate N-series question
  244. 300B+
  245. Koren's spice models
  246. 50 Power triode
  247. Vertical deflection tubes for audio output?
  248. warmth in different tube types
  249. OT data
  250. Sansui 1000A OPT's

Content Relevant URLs by vBSEO 3.3.2