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

  1. Buying guideline for 6c33c
  2. New 211/VT4c shootout
  3. GM70 Output transformer
  4. OTL 2013
  5. Octal Preamp Triode Thoughts (IDHT's)
  6. Wrong tube and pin wiring
  7. New Production Tube If Transformers from Germany
  8. Vishay TX2575 resistor placement
  9. Direct connected madness
  10. RH84 build & quite a few questions...
  11. Tube preamp kits
  12. Capacitor query L1 audio innovation pre-amp
  13. Someone Told Me This Wouldn't Work?
  14. How to "do" a FM Multipath Monitor
  15. EF86 pins 2 & 7
  16. Welborne 300B DRD amp
  17. My First Tube Project: 6N16B
  18. Triode mod with G2, G3 connect to anode
  19. Valve mic cable diy
  20. Toroidal transformer is bad
  21. Coupling caps suggestions
  22. EABC80 and the double diode triode?
  23. Frequent Question -Golden Tube Audio 300B monos schematic??
  24. Transformer Terminal Designators
  25. Slew rate limiting in output stage
  26. Sonic Frontiers Line 2 - no line level output
  27. KT88 Ultralinear?
  28. Help with 12AT7 CCDA - EL34 SE Amp Design?
  29. THE FINAL AMP
  30. need 6SN7/6H8C reccom. for amp
  31. 211 parallel amp (made in Iran)
  32. Changing to twisted pair heater from one side grounded
  33. Choke input supply. Cap question.
  34. tube rectifier 6AX4GT
  35. RS1003 triode mode Spice models
  36. Firestone 6V6 Monoblock Problems
  37. Lundahl Output transformers?
  38. GMI-6 / GMI-6-1
  39. New power transformer for Millett's DCPP amp,now available at EDCOR
  40. Tuned Circuit?
  41. remote lead for tubes
  42. Building a Stereo EL84 auto bias PP tube amp
  43. Tube conversion of differential to single ended signal
  44. A transconductance tube amplifier
  45. Unknown Tube
  46. 12vdc to 150vac
  47. When is a tube too weak?
  48. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  49. Biasing aBerning EA-230
  50. Aikido Noob - Please Help!
  51. Wiring Capacitors in Series
  52. Dynaco ST35 power transformer
  53. sunn 200s diagnosis?
  54. Individual Coupling Caps
  55. Valve Pre > Intergrated amp
  56. Whats the difference RH84 or Mullard 3-3?
  57. Ultra-Linear SE EL84?
  58. Self balancing pp using ccs question
  59. Help: How To Select Schottky Rectifer Diode
  60. 6550 plate resistance in triode mode? Calculate?
  61. making 6sj7 have same gain as 6sl7
  62. Thick Film resistors?
  63. Mounting position EL84
  64. Curve Tracer: Which One To Buy, What To Consider, Options ?
  65. 71A Tube Filament: AC or DC ?
  66. My Current Line + Phono Combo
  67. What is better than one audioromy M-828A FU29?
  68. Mazda tube
  69. Aikido selectable gain
  70. Preamp power supply
  71. Has anyone used CV9 tubes in a pp design
  72. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  73. BALANCED AUDIO VK 5 VK20
  74. Output transformer computation
  75. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  76. Input Attenuators
  77. new build SE to EL 508
  78. found this on kickstarter
  79. SE Output Transformer question
  80. Safety of DC-coupled inputs
  81. Found some old tubes.
  82. Presence control
  83. lafayette pa 622 -> Guitar amp conversion
  84. Fixing an amp head - bad tubes?
  85. EL84 what factory produced it?
  86. Trio Corp 300b fake?
  87. Cheap triode class A 3Watt + assembled/kit you know ?
  88. Elekit tu 879s upgrades
  89. EZ80 Choke Input Max Capacitance
  90. Correct measurement of filament voltage.
  91. Who put the "half" in the Koren SPICE equation
  92. 5Y3 tube rectifier
  93. Triode or ultraliner connected ?
  94. What is the "Tube Sound"?
  95. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  96. Which KT88 ?
  97. Why make a tube amp that sounds like a SS amp?
  98. Mark VI power Supply
  99. audioromy fu29 - not working, repair or scrap?
  100. Valve amp questions for someone new to them.
  101. Driving Parallel Tubes
  102. Matching quad set
  103. Anyone listen a 46 in UL mode ?
  104. McIntosh MC30 vs. Fisher 80-AZ
  105. Voltage Divider at input to Power Amp
  106. Checking EL84 with Eico 625
  107. Dynaclone ST70 6F2 Alternative
  108. Nobsound MS10D
  109. Need Help - Monoblock Power Amplifier EL 34
  110. Replace output transformers in Dynaco ST70
  111. 6P14P-EV in my Simple P-P
  112. Help finding a new tube headphone amp
  113. Cost of building from scratch
  114. Help with loadlines in p.s.e.
  115. Simplified pentode Loftin-White with plate-plate feedback
  116. Inductor Fed VR Tube
  117. Screen Grid Peak Voltage
  118. Unknown (Westrex?) AE285 KT66 cinema amplifier
  119. Has anyone dual-monoed a Stereo 70?
  120. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  121. Pentode G1 series resistance effects.
  122. MUZAK 975a 75watt, 50s
  123. Hybrid SS/Tube Balanced Mic Pre
  124. Adding a baland pot to cathodes on a cathode biased amp?
  125. Is the 8532W a substitute for 8532?
  126. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  127. Configuring 2A3 Driver for 2A3 PSE
  128. Integrated Tube Amp opinion
  129. Ultra-Linear vs. Pentode Longevity
  130. RCA PA amp SA752LO...
  131. Running preamp into acive speakers with cap input
  132. Putting Stock In Carver?
  133. Weak treble
  134. About GU50 PP in UL with separate G2 winding and supply
  135. tube tester comparison
  136. Volume control after the preamp stage or before ?
  137. COPLAND CTA 401 - upgrade of components ?
  138. 2 amp simulation/dummy load for transformer
  139. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  140. 809 Triodes
  141. PSRR
  142. Looking for a schematic or link to a post
  143. Who makes a Williamson output transformer ?
  144. Help with an S5 K12-G Tube Amp
  145. Turing's new tube amps. Please give staff about.
  146. Life Expectancy of DHT's
  147. 6GB8 data sheet translation needed
  148. Full Wave Rectifiers: Center Tapped vs. Bridged
  149. Vectorscope?
  150. Apple macmini become to 6MD8 tube amp
  151. Potting Wax?
  152. How do I repair my Tube Amp?
  153. asr433 simple problem (i hope)
  154. Russian Tube Codes
  155. Help: Driver Stage Design
  156. PAS Power Transformer Capability
  157. 7A5 tube...a small marvel !!!
  158. phono preamp for the s5 electronics model 16ls amp
  159. Screen Stopper Blew
  160. Hickok 533 and 6dj8/6922
  161. OTL design opinion
  162. Pile of TEK scopes.........what do I keep?
  163. Inclusion of an oscilloscope on tester
  164. 6V6SE - Suggestions?
  165. Heretical Line Stage: BOM?
  166. Tube amp to drive 4 ohm headphones?
  167. Another TVA1 - KT88 power amplifier
  168. 845 parafeed
  169. datasheet 6P44C
  170. ecc85 tube buffer or line stage?
  171. Valvestate 8080 That's been dog Peed...
  172. pre war gibson eh125 schematic question
  173. "An elegant full function tube preamp mated to 1st rate SS power amp"
  174. How to select a good Hifi 12AX7 tube?
  175. LTP with CCS and negative PS
  176. Odd phase splitter
  177. Yet Another Hybrid Amplifier
  178. what Lundahl OPT for headphone 2A3 amp? (for HD800)
  179. Heater to Cathode voltage e88cc
  180. ASR-433
  181. Marantz 8B phase splitter
  182. Silvertone 1485 - Output Transformer advice
  183. Bob Latino ST120 Down
  184. SS phase splitters?
  185. Supply Filtering and why Capacitance Multipliers are NOT the Answer
  186. SE 6L6 to KT88
  187. HT power supply design
  188. Good tubes for concertina - 4P1L maybe?
  189. Powr supply question
  190. What is wrong with this Amplifier?
  191. Palmer DREI - Three SE Output Tubes Together?
  192. Heathkit TC-2 Checker and KT88s
  193. my Dummy Amp Contraption
  194. HF Oscillation Heat-Up Spk's Magnet!?
  195. Triode calculations
  196. Western Electric 131
  197. Electrolytic vs. Film 2A3 Cathode Bypass?
  198. Sylvania JAN 6SN7WGTA, late 1970's
  199. TV7 tester problem with 6CB5A tube
  200. Stromberg-Carlson AP-55
  201. SHUGUANG 2A3
  202. Circuit breaker help.
  203. Recommend me a bookshelf speaker for 5W
  204. Monarch STA 100X weird?
  205. 1954 US Army "Sound Repeater" amplifier
  206. 6N7...this configuration work ?
  207. RIAA Active EQ
  208. Direct Coupled E-Linear Amp
  209. Double Triode Mu
  210. Music Angel kt88 new pcbs problem
  211. EL503 replacement?
  212. Reducing gain in a SRPP circuit with ECC82?
  213. 12XX7 Triodes
  214. Output Tx just for interest
  215. Valab in Taiwan output transformers
  216. Impedance Question
  217. How to include a dual triode tube in a KiCAD schematic?
  218. 12U7 SPICE Model
  219. Phono Stage Woofer Bounce
  220. Problem with new L3-3 please help!
  221. Edcor output transformer...very nice !!!
  222. SE Hybrid Amp "The Lunatic one"
  223. Marantz 8b power transformer B+ down 30%
  224. Single or paralell trafo?
  225. CJ PV 5 Impedance?
  226. ECF80 driving EL84 PP
  227. Luhdahl LL1660S what current rating for D3a driver?
  228. what's that cap?
  229. SE EL84 Component placement Suggestion
  230. How to make a cheap 6N3 Buffer Amp even better?
  231. buying Tube Amps need advice/opinions
  232. Best driver and Power 6V6 By Officina
  233. dynaco pas3
  234. 5U4GB full-wave bridge, stumped
  235. Complete Module Driver and Power with DHT 6B4G
  236. HELP NEEDED for a 6CA4/EZ81 power supply
  237. OT for 2A3 PSE w/Parafeed
  238. More Dynaco Mark VI Questions
  239. curious feedback in circuit of Pioneer SM-Q300 receiver
  240. Hytron 2E25 - Other forgotten and marvelous tube !
  241. need tube upgrade advice please sir
  242. buyer beware
  243. Analog tube for DAC & Power supply with valve EZ_80
  244. JJ 5y3S pin 1??
  245. My first Sansui AU-111 Rebuild
  246. Capacitor-induced distortion
  247. Elevating Heater Voltage with multiple Transformer Heater Secondaries
  248. Common Cathode as DAC output
  249. Pre-Amp with russian tubes 1j24b
  250. How to calculate, the output impedance of a tube with grounded grid

Content Relevant URLs by vBSEO 3.3.2