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  1. Phase inverter Gremlins in Philips EL6431 amp
  2. Russian to English Translation needed
  3. Concertina type Phase inverters?
  4. Double C-Core output transformers
  5. Amplifier slew rate and DSD playback
  6. Bypassing volume pot on Cayin integrated tube amp
  7. Distortion when change into ecc83
  8. Mighty Midget Problem (One channel is louder)
  9. Mullard ECL86 3W Economical Amplifier
  10. Building a Baby Huey EL84 amp - might need some pointers
  11. Tranformer Choice
  12. Heathkit WM-5
  13. Aikido preamp power supply
  14. identify this traffo
  15. transformers
  16. parallel tube amplifier.
  17. What to do with a 12" x 8" enclosure?
  18. Odd filament winding
  19. transformers
  20. tube choices for an ST70
  21. "Arabella" - 6EM7 amplifier on Acacia
  22. CDE acquisition of Orange Drop Brand
  23. What is this inductor?
  24. Counterpoint SA-5000 upgrade
  25. Homebrew tube preamp noise
  26. Cathode follower with 12ax7
  27. CPC Japanese Tubes ?
  28. Cary SLA-70 with KT88 - worth building?
  29. Opinions or comments on schematic please
  30. Is this a tie point or a diode?
  31. Need Pinout Help, Silvertone Organ Amp
  32. Pushing EL36 ??
  33. Power Supply Chokes Question ?
  34. First Post, Viking/T Eaton co Tube Amp Issues! *Pictures*
  35. Knight 40 W Amp. tubes correct? Location?
  36. Push-Pull Output Transformer with Cathode Feedback Winding?
  37. 300b amp help
  38. Help with Dynaco value
  39. INTERSTAGE 2A3/211
  40. TCJ Push Pull Amp Calculator question
  41. winter project KT88 PP
  42. En Vogue Darling SRPP SE SRPP tube amp will this work?
  43. Shunt regulation for HT
  44. Unison research simply two, what gridvoltage for EL34?
  45. Finally Measured my Tube Preamp
  46. Aikido octal stereo problems
  47. Philips 5 pin IEC connector in AG9016
  48. Dynaclone OPT replacement - less power than expected
  49. 2 ECL 805 SE
  50. All DHT headphone amp with 4P1L & 307A
  51. cary audio rocket 88 tube amp
  52. Compactron Driver Dynaco MarkIII PCB Design.
  53. Paralelling pentodes ?
  54. KT120 Single Ended Ultralinear
  55. Does a PCL805 glow red at its maximum rating?
  56. V1 Noise Reduction Choices
  57. full pentode ppp
  58. Input transformer question
  59. Is this Tesla ECC803S real or fake?
  60. Michaelson and Austin TVA-1
  61. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  62. 6EB8\6GN8 P-P Output 2*12w Class-B
  63. B+ regulator for KT88 amplifier
  64. Help figuring out wind/hiss
  65. 12A07 low voltage preamp
  66. Buying guideline for 6c33c
  67. New 211/VT4c shootout
  68. GM70 Output transformer
  69. OTL 2013
  70. Octal Preamp Triode Thoughts (IDHT's)
  71. Wrong tube and pin wiring
  72. New Production Tube If Transformers from Germany
  73. Vishay TX2575 resistor placement
  74. Direct connected madness
  75. RH84 build & quite a few questions...
  76. Tube preamp kits
  77. Capacitor query L1 audio innovation pre-amp
  78. Someone Told Me This Wouldn't Work?
  79. How to "do" a FM Multipath Monitor
  80. EF86 pins 2 & 7
  81. Welborne 300B DRD amp
  82. My First Tube Project: 6N16B
  83. Triode mod with G2, G3 connect to anode
  84. Valve mic cable diy
  85. Toroidal transformer is bad
  86. Coupling caps suggestions
  87. EABC80 and the double diode triode?
  88. Frequent Question -Golden Tube Audio 300B monos schematic??
  89. Transformer Terminal Designators
  90. Slew rate limiting in output stage
  91. Sonic Frontiers Line 2 - no line level output
  92. KT88 Ultralinear?
  93. Help with 12AT7 CCDA - EL34 SE Amp Design?
  94. THE FINAL AMP
  95. need 6SN7/6H8C reccom. for amp
  96. 211 parallel amp (made in Iran)
  97. Changing to twisted pair heater from one side grounded
  98. Choke input supply. Cap question.
  99. tube rectifier 6AX4GT
  100. RS1003 triode mode Spice models
  101. Firestone 6V6 Monoblock Problems
  102. Lundahl Output transformers?
  103. GMI-6 / GMI-6-1
  104. New power transformer for Millett's DCPP amp,now available at EDCOR
  105. Tuned Circuit?
  106. remote lead for tubes
  107. Building a Stereo EL84 auto bias PP tube amp
  108. Tube conversion of differential to single ended signal
  109. A transconductance tube amplifier
  110. Unknown Tube
  111. 12vdc to 150vac
  112. When is a tube too weak?
  113. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  114. Biasing aBerning EA-230
  115. Aikido Noob - Please Help!
  116. Wiring Capacitors in Series
  117. Dynaco ST35 power transformer
  118. sunn 200s diagnosis?
  119. Individual Coupling Caps
  120. Valve Pre > Intergrated amp
  121. Whats the difference RH84 or Mullard 3-3?
  122. Ultra-Linear SE EL84?
  123. Self balancing pp using ccs question
  124. Help: How To Select Schottky Rectifer Diode
  125. 6550 plate resistance in triode mode? Calculate?
  126. making 6sj7 have same gain as 6sl7
  127. Thick Film resistors?
  128. Mounting position EL84
  129. Curve Tracer: Which One To Buy, What To Consider, Options ?
  130. 71A Tube Filament: AC or DC ?
  131. My Current Line + Phono Combo
  132. What is better than one audioromy M-828A FU29?
  133. Mazda tube
  134. Aikido selectable gain
  135. Preamp power supply
  136. Has anyone used CV9 tubes in a pp design
  137. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  138. BALANCED AUDIO VK 5 VK20
  139. Output transformer computation
  140. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  141. Input Attenuators
  142. new build SE to EL 508
  143. found this on kickstarter
  144. SE Output Transformer question
  145. Safety of DC-coupled inputs
  146. Found some old tubes.
  147. Presence control
  148. lafayette pa 622 -> Guitar amp conversion
  149. Fixing an amp head - bad tubes?
  150. EL84 what factory produced it?
  151. Trio Corp 300b fake?
  152. Cheap triode class A 3Watt + assembled/kit you know ?
  153. Elekit tu 879s upgrades
  154. EZ80 Choke Input Max Capacitance
  155. Correct measurement of filament voltage.
  156. Who put the "half" in the Koren SPICE equation
  157. 5Y3 tube rectifier
  158. Triode or ultraliner connected ?
  159. What is the "Tube Sound"?
  160. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  161. Which KT88 ?
  162. Why make a tube amp that sounds like a SS amp?
  163. Mark VI power Supply
  164. audioromy fu29 - not working, repair or scrap?
  165. Valve amp questions for someone new to them.
  166. Driving Parallel Tubes
  167. Matching quad set
  168. Anyone listen a 46 in UL mode ?
  169. McIntosh MC30 vs. Fisher 80-AZ
  170. Voltage Divider at input to Power Amp
  171. Checking EL84 with Eico 625
  172. Dynaclone ST70 6F2 Alternative
  173. Nobsound MS10D
  174. Need Help - Monoblock Power Amplifier EL 34
  175. Replace output transformers in Dynaco ST70
  176. 6P14P-EV in my Simple P-P
  177. Help finding a new tube headphone amp
  178. Cost of building from scratch
  179. Help with loadlines in p.s.e.
  180. Simplified pentode Loftin-White with plate-plate feedback
  181. Inductor Fed VR Tube
  182. Screen Grid Peak Voltage
  183. Unknown (Westrex?) AE285 KT66 cinema amplifier
  184. Has anyone dual-monoed a Stereo 70?
  185. CV2799 (Mullard) QQV04-20 parallel single-ended audio amplifier
  186. Pentode G1 series resistance effects.
  187. MUZAK 975a 75watt, 50s
  188. Hybrid SS/Tube Balanced Mic Pre
  189. Adding a baland pot to cathodes on a cathode biased amp?
  190. Is the 8532W a substitute for 8532?
  191. Low cost class A Hi-Fi amplifier 807 S.E. Ultralinear - Pentode drivers [6G6G]
  192. Configuring 2A3 Driver for 2A3 PSE
  193. Integrated Tube Amp opinion
  194. Ultra-Linear vs. Pentode Longevity
  195. RCA PA amp SA752LO...
  196. Running preamp into acive speakers with cap input
  197. Putting Stock In Carver?
  198. Weak treble
  199. About GU50 PP in UL with separate G2 winding and supply
  200. tube tester comparison
  201. Volume control after the preamp stage or before ?
  202. COPLAND CTA 401 - upgrade of components ?
  203. 2 amp simulation/dummy load for transformer
  204. Optimal Operating Point for E280F Driver for 300B Single End Amplifier
  205. 809 Triodes
  206. PSRR
  207. Looking for a schematic or link to a post
  208. Who makes a Williamson output transformer ?
  209. Help with an S5 K12-G Tube Amp
  210. Turing's new tube amps. Please give staff about.
  211. Life Expectancy of DHT's
  212. 6GB8 data sheet translation needed
  213. Full Wave Rectifiers: Center Tapped vs. Bridged
  214. Vectorscope?
  215. Apple macmini become to 6MD8 tube amp
  216. Potting Wax?
  217. How do I repair my Tube Amp?
  218. asr433 simple problem (i hope)
  219. Russian Tube Codes
  220. Help: Driver Stage Design
  221. PAS Power Transformer Capability
  222. 7A5 tube...a small marvel !!!
  223. phono preamp for the s5 electronics model 16ls amp
  224. Screen Stopper Blew
  225. Hickok 533 and 6dj8/6922
  226. OTL design opinion
  227. Pile of TEK scopes.........what do I keep?
  228. Inclusion of an oscilloscope on tester
  229. 6V6SE - Suggestions?
  230. Heretical Line Stage: BOM?
  231. Tube amp to drive 4 ohm headphones?
  232. Another TVA1 - KT88 power amplifier
  233. 845 parafeed
  234. datasheet 6P44C
  235. ecc85 tube buffer or line stage?
  236. Valvestate 8080 That's been dog Peed...
  237. pre war gibson eh125 schematic question
  238. "An elegant full function tube preamp mated to 1st rate SS power amp"
  239. How to select a good Hifi 12AX7 tube?
  240. LTP with CCS and negative PS
  241. Odd phase splitter
  242. Yet Another Hybrid Amplifier
  243. what Lundahl OPT for headphone 2A3 amp? (for HD800)
  244. Heater to Cathode voltage e88cc
  245. ASR-433
  246. Marantz 8B phase splitter
  247. Silvertone 1485 - Output Transformer advice
  248. Bob Latino ST120 Down
  249. SS phase splitters?
  250. Supply Filtering and why Capacitance Multipliers are NOT the Answer

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