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  1. Low power stereo (dual mono) tube headphone amp
  2. 6EJ7's vs. 6JC6A
  3. EL34s Frying in my Cayin A50-T
  4. Grid Leak Amplifier with Unexpected Heater Resistor
  5. 7617 tube data
  6. preamplifier with huge amplification
  7. Counterpoint Amp Output
  8. Phase inverter Gremlins in Philips EL6431 amp
  9. Russian to English Translation needed
  10. Concertina type Phase inverters?
  11. Double C-Core output transformers
  12. Amplifier slew rate and DSD playback
  13. Bypassing volume pot on Cayin integrated tube amp
  14. Distortion when change into ecc83
  15. Mighty Midget Problem (One channel is louder)
  16. Mullard ECL86 3W Economical Amplifier
  17. Building a Baby Huey EL84 amp - might need some pointers
  18. Tranformer Choice
  19. Heathkit WM-5
  20. Aikido preamp power supply
  21. identify this traffo
  22. transformers
  23. parallel tube amplifier.
  24. What to do with a 12" x 8" enclosure?
  25. Odd filament winding
  26. transformers
  27. tube choices for an ST70
  28. "Arabella" - 6EM7 amplifier on Acacia
  29. CDE acquisition of Orange Drop Brand
  30. What is this inductor?
  31. Counterpoint SA-5000 upgrade
  32. Homebrew tube preamp noise
  33. Cathode follower with 12ax7
  34. CPC Japanese Tubes ?
  35. Cary SLA-70 with KT88 - worth building?
  36. Opinions or comments on schematic please
  37. Is this a tie point or a diode?
  38. Need Pinout Help, Silvertone Organ Amp
  39. Pushing EL36 ??
  40. Power Supply Chokes Question ?
  41. First Post, Viking/T Eaton co Tube Amp Issues! *Pictures*
  42. Knight 40 W Amp. tubes correct? Location?
  43. Push-Pull Output Transformer with Cathode Feedback Winding?
  44. 300b amp help
  45. Help with Dynaco value
  46. INTERSTAGE 2A3/211
  47. TCJ Push Pull Amp Calculator question
  48. winter project KT88 PP
  49. En Vogue Darling SRPP SE SRPP tube amp will this work?
  50. Shunt regulation for HT
  51. Unison research simply two, what gridvoltage for EL34?
  52. Finally Measured my Tube Preamp
  53. Aikido octal stereo problems
  54. Philips 5 pin IEC connector in AG9016
  55. Dynaclone OPT replacement - less power than expected
  56. 2 ECL 805 SE
  57. All DHT headphone amp with 4P1L & 307A
  58. cary audio rocket 88 tube amp
  59. Compactron Driver Dynaco MarkIII PCB Design.
  60. Paralelling pentodes ?
  61. KT120 Single Ended Ultralinear
  62. Does a PCL805 glow red at its maximum rating?
  63. V1 Noise Reduction Choices
  64. full pentode ppp
  65. Input transformer question
  66. Is this Tesla ECC803S real or fake?
  67. Michaelson and Austin TVA-1
  68. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  69. 6EB8\6GN8 P-P Output 2*12w Class-B
  70. B+ regulator for KT88 amplifier
  71. Help figuring out wind/hiss
  72. 12A07 low voltage preamp
  73. Buying guideline for 6c33c
  74. New 211/VT4c shootout
  75. GM70 Output transformer
  76. OTL 2013
  77. Octal Preamp Triode Thoughts (IDHT's)
  78. Wrong tube and pin wiring
  79. New Production Tube If Transformers from Germany
  80. Vishay TX2575 resistor placement
  81. Direct connected madness
  82. RH84 build & quite a few questions...
  83. Tube preamp kits
  84. Capacitor query L1 audio innovation pre-amp
  85. Someone Told Me This Wouldn't Work?
  86. How to "do" a FM Multipath Monitor
  87. EF86 pins 2 & 7
  88. Welborne 300B DRD amp
  89. My First Tube Project: 6N16B
  90. Triode mod with G2, G3 connect to anode
  91. Valve mic cable diy
  92. Toroidal transformer is bad
  93. Coupling caps suggestions
  94. EABC80 and the double diode triode?
  95. Frequent Question -Golden Tube Audio 300B monos schematic??
  96. Transformer Terminal Designators
  97. Slew rate limiting in output stage
  98. Sonic Frontiers Line 2 - no line level output
  99. KT88 Ultralinear?
  100. Help with 12AT7 CCDA - EL34 SE Amp Design?
  101. THE FINAL AMP
  102. need 6SN7/6H8C reccom. for amp
  103. 211 parallel amp (made in Iran)
  104. Changing to twisted pair heater from one side grounded
  105. Choke input supply. Cap question.
  106. tube rectifier 6AX4GT
  107. RS1003 triode mode Spice models
  108. Firestone 6V6 Monoblock Problems
  109. Lundahl Output transformers?
  110. GMI-6 / GMI-6-1
  111. New power transformer for Millett's DCPP amp,now available at EDCOR
  112. Tuned Circuit?
  113. remote lead for tubes
  114. Building a Stereo EL84 auto bias PP tube amp
  115. Tube conversion of differential to single ended signal
  116. A transconductance tube amplifier
  117. Unknown Tube
  118. 12vdc to 150vac
  119. When is a tube too weak?
  120. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  121. Biasing aBerning EA-230
  122. Aikido Noob - Please Help!
  123. Wiring Capacitors in Series
  124. Dynaco ST35 power transformer
  125. sunn 200s diagnosis?
  126. Individual Coupling Caps
  127. Valve Pre > Intergrated amp
  128. Whats the difference RH84 or Mullard 3-3?
  129. Ultra-Linear SE EL84?
  130. Self balancing pp using ccs question
  131. Help: How To Select Schottky Rectifer Diode
  132. 6550 plate resistance in triode mode? Calculate?
  133. making 6sj7 have same gain as 6sl7
  134. Thick Film resistors?
  135. Mounting position EL84
  136. Curve Tracer: Which One To Buy, What To Consider, Options ?
  137. 71A Tube Filament: AC or DC ?
  138. My Current Line + Phono Combo
  139. What is better than one audioromy M-828A FU29?
  140. Mazda tube
  141. Aikido selectable gain
  142. Preamp power supply
  143. Has anyone used CV9 tubes in a pp design
  144. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  145. BALANCED AUDIO VK 5 VK20
  146. Output transformer computation
  147. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  148. Input Attenuators
  149. new build SE to EL 508
  150. found this on kickstarter
  151. SE Output Transformer question
  152. Safety of DC-coupled inputs
  153. Found some old tubes.
  154. Presence control
  155. lafayette pa 622 -> Guitar amp conversion
  156. Fixing an amp head - bad tubes?
  157. EL84 what factory produced it?
  158. Trio Corp 300b fake?
  159. Cheap triode class A 3Watt + assembled/kit you know ?
  160. Elekit tu 879s upgrades
  161. EZ80 Choke Input Max Capacitance
  162. Correct measurement of filament voltage.
  163. Who put the "half" in the Koren SPICE equation
  164. 5Y3 tube rectifier
  165. Triode or ultraliner connected ?
  166. What is the "Tube Sound"?
  167. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  168. Which KT88 ?
  169. Why make a tube amp that sounds like a SS amp?
  170. Mark VI power Supply
  171. audioromy fu29 - not working, repair or scrap?
  172. Valve amp questions for someone new to them.
  173. Driving Parallel Tubes
  174. Matching quad set
  175. Anyone listen a 46 in UL mode ?
  176. McIntosh MC30 vs. Fisher 80-AZ
  177. Voltage Divider at input to Power Amp
  178. Checking EL84 with Eico 625
  179. Dynaclone ST70 6F2 Alternative
  180. Nobsound MS10D
  181. Need Help - Monoblock Power Amplifier EL 34
  182. Replace output transformers in Dynaco ST70
  183. 6P14P-EV in my Simple P-P
  184. Help finding a new tube headphone amp
  185. Cost of building from scratch
  186. Help with loadlines in p.s.e.
  187. Simplified pentode Loftin-White with plate-plate feedback
  188. Inductor Fed VR Tube
  189. Screen Grid Peak Voltage
  190. Unknown (Westrex?) AE285 KT66 cinema amplifier
  191. Has anyone dual-monoed a Stereo 70?
  192. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  193. Pentode G1 series resistance effects.
  194. MUZAK 975a 75watt, 50s
  195. Hybrid SS/Tube Balanced Mic Pre
  196. Adding a baland pot to cathodes on a cathode biased amp?
  197. Is the 8532W a substitute for 8532?
  198. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  199. Configuring 2A3 Driver for 2A3 PSE
  200. Integrated Tube Amp opinion
  201. Ultra-Linear vs. Pentode Longevity
  202. RCA PA amp SA752LO...
  203. Running preamp into acive speakers with cap input
  204. Putting Stock In Carver?
  205. Weak treble
  206. About GU50 PP in UL with separate G2 winding and supply
  207. tube tester comparison
  208. Volume control after the preamp stage or before ?
  209. COPLAND CTA 401 - upgrade of components ?
  210. 2 amp simulation/dummy load for transformer
  211. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  212. 809 Triodes
  213. PSRR
  214. Looking for a schematic or link to a post
  215. Who makes a Williamson output transformer ?
  216. Help with an S5 K12-G Tube Amp
  217. Turing's new tube amps. Please give staff about.
  218. Life Expectancy of DHT's
  219. 6GB8 data sheet translation needed
  220. Full Wave Rectifiers: Center Tapped vs. Bridged
  221. Vectorscope?
  222. Apple macmini become to 6MD8 tube amp
  223. Potting Wax?
  224. How do I repair my Tube Amp?
  225. asr433 simple problem (i hope)
  226. Russian Tube Codes
  227. Help: Driver Stage Design
  228. PAS Power Transformer Capability
  229. 7A5 tube...a small marvel !!!
  230. phono preamp for the s5 electronics model 16ls amp
  231. Screen Stopper Blew
  232. Hickok 533 and 6dj8/6922
  233. OTL design opinion
  234. Pile of TEK scopes.........what do I keep?
  235. Inclusion of an oscilloscope on tester
  236. 6V6SE - Suggestions?
  237. Heretical Line Stage: BOM?
  238. Tube amp to drive 4 ohm headphones?
  239. Another TVA1 - KT88 power amplifier
  240. 845 parafeed
  241. datasheet 6P44C
  242. ecc85 tube buffer or line stage?
  243. Valvestate 8080 That's been dog Peed...
  244. pre war gibson eh125 schematic question
  245. "An elegant full function tube preamp mated to 1st rate SS power amp"
  246. How to select a good Hifi 12AX7 tube?
  247. LTP with CCS and negative PS
  248. Odd phase splitter
  249. Yet Another Hybrid Amplifier
  250. what Lundahl OPT for headphone 2A3 amp? (for HD800)

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