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  1. 6sn7(12au7)-6v6-300b
  2. Westinghouse tube amp MODEL V2508, conversion
  3. Voltage on the chassis, bad xformer?
  4. TubeCad blues...
  5. OPT as PSU filter???
  6. Tube Plate Voltage Timing
  7. Transformer grounding
  8. Two questions concerning bleed resistors
  9. Choke ratings and resistor values in choke input supply?
  10. Novar Spud :: A $200 sweep tube Spud with PCB
  11. Mid 50s 250/500/1000W Valve amp needs some repairs......
  12. I want to learn tubes and set up a workstation
  13. Pre amp wire up__new
  14. allied knight / rauland borg schematic needed
  15. Rollable Tubes
  16. n00b - Leave out the LEDs??
  17. Aikido 5687 all in one kit
  18. 6P13S - WHAT TO DO WITH
  19. el84 set amp for 90db-8ohm speaker?
  20. My first cap coupled 2 stage
  21. Dodd Buffer Tube Rolling?
  22. Lowest THD Tube Design Possible? (Need for a class, I realize it doesn't matter)
  23. Olson-Morgan 6F6 Amplifier Info's needed.
  24. Newbie, Help with datasheet
  25. Conrad Johnson MV55 again - and Hi from a newb
  26. Interesting one piece EL34 PP tube amp diy pcb on ebay
  27. Low power stereo (dual mono) tube headphone amp
  28. 6EJ7's vs. 6JC6A
  29. EL34s Frying in my Cayin A50-T
  30. Grid Leak Amplifier with Unexpected Heater Resistor
  31. 7617 tube data
  32. preamplifier with huge amplification
  33. Counterpoint Amp Output
  34. Phase inverter Gremlins in Philips EL6431 amp
  35. Russian to English Translation needed
  36. Concertina type Phase inverters?
  37. Double C-Core output transformers
  38. Amplifier slew rate and DSD playback
  39. Bypassing volume pot on Cayin integrated tube amp
  40. Distortion when change into ecc83
  41. Mighty Midget Problem (One channel is louder)
  42. Mullard ECL86 3W Economical Amplifier
  43. Building a Baby Huey EL84 amp - might need some pointers
  44. Tranformer Choice
  45. Heathkit WM-5
  46. Aikido preamp power supply
  47. identify this traffo
  48. transformers
  49. parallel tube amplifier.
  50. What to do with a 12" x 8" enclosure?
  51. Odd filament winding
  52. transformers
  53. tube choices for an ST70
  54. "Arabella" - 6EM7 amplifier on Acacia
  55. CDE acquisition of Orange Drop Brand
  56. What is this inductor?
  57. Counterpoint SA-5000 upgrade
  58. Homebrew tube preamp noise
  59. Cathode follower with 12ax7
  60. CPC Japanese Tubes ?
  61. Cary SLA-70 with KT88 - worth building?
  62. Opinions or comments on schematic please
  63. Is this a tie point or a diode?
  64. Pushing EL36 ??
  65. Power Supply Chokes Question ?
  66. First Post, Viking/T Eaton co Tube Amp Issues! *Pictures*
  67. Knight 40 W Amp. tubes correct? Location?
  68. Push-Pull Output Transformer with Cathode Feedback Winding?
  69. 300b amp help
  70. Help with Dynaco value
  71. INTERSTAGE 2A3/211
  72. TCJ Push Pull Amp Calculator question
  73. winter project KT88 PP
  74. En Vogue Darling SRPP SE SRPP tube amp will this work?
  75. Shunt regulation for HT
  76. Unison research simply two, what gridvoltage for EL34?
  77. Finally Measured my Tube Preamp
  78. Aikido octal stereo problems
  79. Philips 5 pin IEC connector in AG9016
  80. Dynaclone OPT replacement - less power than expected
  81. 2 ECL 805 SE
  82. All DHT headphone amp with 4P1L & 307A
  83. cary audio rocket 88 tube amp
  84. Compactron Driver Dynaco MarkIII PCB Design.
  85. Paralelling pentodes ?
  86. KT120 Single Ended Ultralinear
  87. Does a PCL805 glow red at its maximum rating?
  88. V1 Noise Reduction Choices
  89. full pentode ppp
  90. Input transformer question
  91. Is this Tesla ECC803S real or fake?
  92. Michaelson and Austin TVA-1
  93. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  94. 6EB8\6GN8 P-P Output 2*12w Class-B
  95. B+ regulator for KT88 amplifier
  96. Help figuring out wind/hiss
  97. 12A07 low voltage preamp
  98. Buying guideline for 6c33c
  99. New 211/VT4c shootout
  100. GM70 Output transformer
  101. OTL 2013
  102. Octal Preamp Triode Thoughts (IDHT's)
  103. Wrong tube and pin wiring
  104. New Production Tube If Transformers from Germany
  105. Vishay TX2575 resistor placement
  106. Direct connected madness
  107. RH84 build & quite a few questions...
  108. Output tansformer Nuvistor 7587/7985
  109. Tube preamp kits
  110. Capacitor query L1 audio innovation pre-amp
  111. Someone Told Me This Wouldn't Work?
  112. How to "do" a FM Multipath Monitor
  113. EF86 pins 2 & 7
  114. Welborne 300B DRD amp
  115. My First Tube Project: 6N16B
  116. Triode mod with G2, G3 connect to anode
  117. Valve mic cable diy
  118. Toroidal transformer is bad
  119. Coupling caps suggestions
  120. EABC80 and the double diode triode?
  121. Frequent Question -Golden Tube Audio 300B monos schematic??
  122. Transformer Terminal Designators
  123. Slew rate limiting in output stage
  124. Sonic Frontiers Line 2 - no line level output
  125. KT88 Ultralinear?
  126. Help with 12AT7 CCDA - EL34 SE Amp Design?
  127. THE FINAL AMP
  128. need 6SN7/6H8C reccom. for amp
  129. 211 parallel amp (made in Iran)
  130. Changing to twisted pair heater from one side grounded
  131. Choke input supply. Cap question.
  132. tube rectifier 6AX4GT
  133. RS1003 triode mode Spice models
  134. Firestone 6V6 Monoblock Problems
  135. Lundahl Output transformers?
  136. GMI-6 / GMI-6-1
  137. New power transformer for Millett's DCPP amp,now available at EDCOR
  138. Tuned Circuit?
  139. remote lead for tubes
  140. Building a Stereo EL84 auto bias PP tube amp
  141. Tube conversion of differential to single ended signal
  142. A transconductance tube amplifier
  143. Unknown Tube
  144. 12vdc to 150vac
  145. When is a tube too weak?
  146. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  147. Biasing aBerning EA-230
  148. Aikido Noob - Please Help!
  149. Wiring Capacitors in Series
  150. Dynaco ST35 power transformer
  151. Individual Coupling Caps
  152. Valve Pre > Intergrated amp
  153. Whats the difference RH84 or Mullard 3-3?
  154. Ultra-Linear SE EL84?
  155. Self balancing pp using ccs question
  156. Help: How To Select Schottky Rectifer Diode
  157. 6550 plate resistance in triode mode? Calculate?
  158. making 6sj7 have same gain as 6sl7
  159. Thick Film resistors?
  160. Mounting position EL84
  161. Curve Tracer: Which One To Buy, What To Consider, Options ?
  162. 71A Tube Filament: AC or DC ?
  163. My Current Line + Phono Combo
  164. What is better than one audioromy M-828A FU29?
  165. Mazda tube
  166. Aikido selectable gain
  167. Preamp power supply
  168. Has anyone used CV9 tubes in a pp design
  169. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  170. BALANCED AUDIO VK 5 VK20
  171. Output transformer computation
  172. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  173. Input Attenuators
  174. new build SE to EL 508
  175. found this on kickstarter
  176. SE Output Transformer question
  177. Safety of DC-coupled inputs
  178. Found some old tubes.
  179. Presence control
  180. Fixing an amp head - bad tubes?
  181. EL84 what factory produced it?
  182. Trio Corp 300b fake?
  183. Cheap triode class A 3Watt + assembled/kit you know ?
  184. Elekit tu 879s upgrades
  185. EZ80 Choke Input Max Capacitance
  186. Correct measurement of filament voltage.
  187. Who put the "half" in the Koren SPICE equation
  188. 5Y3 tube rectifier
  189. Triode or ultraliner connected ?
  190. What is the "Tube Sound"?
  191. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  192. Which KT88 ?
  193. Why make a tube amp that sounds like a SS amp?
  194. Mark VI power Supply
  195. audioromy fu29 - not working, repair or scrap?
  196. Valve amp questions for someone new to them.
  197. Driving Parallel Tubes
  198. Matching quad set
  199. Anyone listen a 46 in UL mode ?
  200. McIntosh MC30 vs. Fisher 80-AZ
  201. Voltage Divider at input to Power Amp
  202. Checking EL84 with Eico 625
  203. Dynaclone ST70 6F2 Alternative
  204. Nobsound MS10D
  205. Need Help - Monoblock Power Amplifier EL 34
  206. Replace output transformers in Dynaco ST70
  207. 6P14P-EV in my Simple P-P
  208. Help finding a new tube headphone amp
  209. Cost of building from scratch
  210. Help with loadlines in p.s.e.
  211. Simplified pentode Loftin-White with plate-plate feedback
  212. Inductor Fed VR Tube
  213. Screen Grid Peak Voltage
  214. Unknown (Westrex?) AE285 KT66 cinema amplifier
  215. Has anyone dual-monoed a Stereo 70?
  216. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  217. Pentode G1 series resistance effects.
  218. MUZAK 975a 75watt, 50s
  219. Hybrid SS/Tube Balanced Mic Pre
  220. Adding a baland pot to cathodes on a cathode biased amp?
  221. Is the 8532W a substitute for 8532?
  222. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  223. Configuring 2A3 Driver for 2A3 PSE
  224. Integrated Tube Amp opinion
  225. Ultra-Linear vs. Pentode Longevity
  226. RCA PA amp SA752LO...
  227. Running preamp into acive speakers with cap input
  228. Putting Stock In Carver?
  229. Weak treble
  230. About GU50 PP in UL with separate G2 winding and supply
  231. tube tester comparison
  232. Volume control after the preamp stage or before ?
  233. COPLAND CTA 401 - upgrade of components ?
  234. 2 amp simulation/dummy load for transformer
  235. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  236. 809 Triodes
  237. PSRR
  238. Looking for a schematic or link to a post
  239. Who makes a Williamson output transformer ?
  240. Help with an S5 K12-G Tube Amp
  241. Turing's new tube amps. Please give staff about.
  242. Life Expectancy of DHT's
  243. 6GB8 data sheet translation needed
  244. Full Wave Rectifiers: Center Tapped vs. Bridged
  245. Vectorscope?
  246. Apple macmini become to 6MD8 tube amp
  247. Potting Wax?
  248. How do I repair my Tube Amp?
  249. asr433 simple problem (i hope)
  250. Russian Tube Codes

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