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  1. Anthem 1 intergrated amp
  2. Tubes and the sun?
  3. Two triodes cascaded cathode follower?
  4. HIRAGA PREAMP PHONO + line
  5. OB2WA Radioactive???
  6. 9 pin tube socket pcb boards with screw terminals
  7. Hai I need a little help on designing a power supply
  8. Tesla E83CC Frame Grid Tube Purchase - Legitimate Production or Fakes?
  9. Cleaning Up the Noise + Selector Switch Anomalie
  10. first tube preamp
  11. Rescuing a vessel : 1964 HICKOK 539C tube tester
  12. Dynaco Feedback
  13. Mundorf Silver Oil in hot 300B tube amplifier !!
  14. MULLARD 5-20 build with mods
  15. Choke loaded driver with small opt?
  16. Preamp Tube Bias and feedback
  17. Capacitor replacement option
  18. New EL84 SE Amp PCB: The u-SE
  19. Question about Amp Theory
  20. Help needed for modifying DAC-opamp-tube circuit
  21. best way to start with tube amps
  22. Damper diode between C1 and L1
  23. Question about 'near' zero volt bias for low level stages
  24. Filmosound 179 - Should I even bother?
  25. Newbie question
  26. I think I know how it works, but can I get some help? (OddWatt PP)
  27. kt150
  28. As anyone considered black oxide???
  29. OTL question
  30. Headphone amp/preamp project.
  31. Comments or suggestions on this schematic?
  32. Twin Conn Organ 7868 Rebuild
  33. Favorite PP 6550 schematic?
  34. DECWARE Z BOX SCHEMATIC
  35. 6V6
  36. Need suggestion for eliminating noise from aluminum cover
  37. Kuba Serenade Stereo Console question.
  38. Help with tube interchangeability
  39. 6sn7(12au7)-6v6-300b
  40. Westinghouse tube amp MODEL V2508, conversion
  41. Voltage on the chassis, bad xformer?
  42. TubeCad blues...
  43. OPT as PSU filter???
  44. Tube Plate Voltage Timing
  45. Transformer grounding
  46. Two questions concerning bleed resistors
  47. Choke ratings and resistor values in choke input supply?
  48. Novar Spud :: A $200 sweep tube Spud with PCB
  49. Mid 50s 250/500/1000W Valve amp needs some repairs......
  50. I want to learn tubes and set up a workstation
  51. Pre amp wire up__new
  52. allied knight / rauland borg schematic needed
  53. Rollable Tubes
  54. n00b - Leave out the LEDs??
  55. Aikido 5687 all in one kit
  56. 6P13S - WHAT TO DO WITH
  57. el84 set amp for 90db-8ohm speaker?
  58. My first cap coupled 2 stage
  59. Dodd Buffer Tube Rolling?
  60. Lowest THD Tube Design Possible? (Need for a class, I realize it doesn't matter)
  61. Olson-Morgan 6F6 Amplifier Info's needed.
  62. Newbie, Help with datasheet
  63. Conrad Johnson MV55 again - and Hi from a newb
  64. Interesting one piece EL34 PP tube amp diy pcb on ebay
  65. Low power stereo (dual mono) tube headphone amp
  66. 6EJ7's vs. 6JC6A
  67. EL34s Frying in my Cayin A50-T
  68. Grid Leak Amplifier with Unexpected Heater Resistor
  69. 7617 tube data
  70. preamplifier with huge amplification
  71. Counterpoint Amp Output
  72. Phase inverter Gremlins in Philips EL6431 amp
  73. Russian to English Translation needed
  74. Concertina type Phase inverters?
  75. Double C-Core output transformers
  76. Amplifier slew rate and DSD playback
  77. Bypassing volume pot on Cayin integrated tube amp
  78. Distortion when change into ecc83
  79. Mighty Midget Problem (One channel is louder)
  80. Mullard ECL86 3W Economical Amplifier
  81. Building a Baby Huey EL84 amp - might need some pointers
  82. Tranformer Choice
  83. Heathkit WM-5
  84. Aikido preamp power supply
  85. identify this traffo
  86. transformers
  87. parallel tube amplifier.
  88. What to do with a 12" x 8" enclosure?
  89. Odd filament winding
  90. transformers
  91. tube choices for an ST70
  92. "Arabella" - 6EM7 amplifier on Acacia
  93. CDE acquisition of Orange Drop Brand
  94. What is this inductor?
  95. Counterpoint SA-5000 upgrade
  96. Homebrew tube preamp noise
  97. Cathode follower with 12ax7
  98. CPC Japanese Tubes ?
  99. Cary SLA-70 with KT88 - worth building?
  100. Opinions or comments on schematic please
  101. Is this a tie point or a diode?
  102. Need Pinout Help, Silvertone Organ Amp
  103. Pushing EL36 ??
  104. Power Supply Chokes Question ?
  105. First Post, Viking/T Eaton co Tube Amp Issues! *Pictures*
  106. Knight 40 W Amp. tubes correct? Location?
  107. Push-Pull Output Transformer with Cathode Feedback Winding?
  108. 300b amp help
  109. Help with Dynaco value
  110. INTERSTAGE 2A3/211
  111. TCJ Push Pull Amp Calculator question
  112. winter project KT88 PP
  113. En Vogue Darling SRPP SE SRPP tube amp will this work?
  114. Shunt regulation for HT
  115. Unison research simply two, what gridvoltage for EL34?
  116. Finally Measured my Tube Preamp
  117. Aikido octal stereo problems
  118. Philips 5 pin IEC connector in AG9016
  119. Dynaclone OPT replacement - less power than expected
  120. 2 ECL 805 SE
  121. All DHT headphone amp with 4P1L & 307A
  122. cary audio rocket 88 tube amp
  123. Compactron Driver Dynaco MarkIII PCB Design.
  124. Paralelling pentodes ?
  125. KT120 Single Ended Ultralinear
  126. Does a PCL805 glow red at its maximum rating?
  127. V1 Noise Reduction Choices
  128. full pentode ppp
  129. Input transformer question
  130. Is this Tesla ECC803S real or fake?
  131. Michaelson and Austin TVA-1
  132. EN VOGUE DARLING SRPP SE PARALLEL 1626 REVIEW NEEDED
  133. 6EB8\6GN8 P-P Output 2*12w Class-B
  134. B+ regulator for KT88 amplifier
  135. Help figuring out wind/hiss
  136. 12A07 low voltage preamp
  137. Buying guideline for 6c33c
  138. New 211/VT4c shootout
  139. GM70 Output transformer
  140. OTL 2013
  141. Octal Preamp Triode Thoughts (IDHT's)
  142. Wrong tube and pin wiring
  143. New Production Tube If Transformers from Germany
  144. Vishay TX2575 resistor placement
  145. Direct connected madness
  146. RH84 build & quite a few questions...
  147. Tube preamp kits
  148. Capacitor query L1 audio innovation pre-amp
  149. Someone Told Me This Wouldn't Work?
  150. How to "do" a FM Multipath Monitor
  151. EF86 pins 2 & 7
  152. Welborne 300B DRD amp
  153. My First Tube Project: 6N16B
  154. Triode mod with G2, G3 connect to anode
  155. Valve mic cable diy
  156. Toroidal transformer is bad
  157. Coupling caps suggestions
  158. EABC80 and the double diode triode?
  159. Frequent Question -Golden Tube Audio 300B monos schematic??
  160. Transformer Terminal Designators
  161. Slew rate limiting in output stage
  162. Sonic Frontiers Line 2 - no line level output
  163. KT88 Ultralinear?
  164. Help with 12AT7 CCDA - EL34 SE Amp Design?
  165. THE FINAL AMP
  166. need 6SN7/6H8C reccom. for amp
  167. 211 parallel amp (made in Iran)
  168. Changing to twisted pair heater from one side grounded
  169. Choke input supply. Cap question.
  170. tube rectifier 6AX4GT
  171. RS1003 triode mode Spice models
  172. Firestone 6V6 Monoblock Problems
  173. Lundahl Output transformers?
  174. GMI-6 / GMI-6-1
  175. New power transformer for Millett's DCPP amp,now available at EDCOR
  176. Tuned Circuit?
  177. remote lead for tubes
  178. Building a Stereo EL84 auto bias PP tube amp
  179. Tube conversion of differential to single ended signal
  180. A transconductance tube amplifier
  181. Unknown Tube
  182. 12vdc to 150vac
  183. When is a tube too weak?
  184. The Best Way To Separate L+R and Driver/Output Tube Power Supply ?
  185. Biasing aBerning EA-230
  186. Aikido Noob - Please Help!
  187. Wiring Capacitors in Series
  188. Dynaco ST35 power transformer
  189. sunn 200s diagnosis?
  190. Individual Coupling Caps
  191. Valve Pre > Intergrated amp
  192. Whats the difference RH84 or Mullard 3-3?
  193. Ultra-Linear SE EL84?
  194. Self balancing pp using ccs question
  195. Help: How To Select Schottky Rectifer Diode
  196. 6550 plate resistance in triode mode? Calculate?
  197. making 6sj7 have same gain as 6sl7
  198. Thick Film resistors?
  199. Mounting position EL84
  200. Curve Tracer: Which One To Buy, What To Consider, Options ?
  201. 71A Tube Filament: AC or DC ?
  202. My Current Line + Phono Combo
  203. What is better than one audioromy M-828A FU29?
  204. Mazda tube
  205. Aikido selectable gain
  206. Preamp power supply
  207. Has anyone used CV9 tubes in a pp design
  208. 9 pin Vector turret socketsIt seems that Vector turret 9 pin sockets are hard to come
  209. BALANCED AUDIO VK 5 VK20
  210. Output transformer computation
  211. 2E25 Tetrode in Ultra-linear mode...NICE !!!
  212. Input Attenuators
  213. new build SE to EL 508
  214. found this on kickstarter
  215. SE Output Transformer question
  216. Safety of DC-coupled inputs
  217. Found some old tubes.
  218. Presence control
  219. lafayette pa 622 -> Guitar amp conversion
  220. Fixing an amp head - bad tubes?
  221. EL84 what factory produced it?
  222. Trio Corp 300b fake?
  223. Cheap triode class A 3Watt + assembled/kit you know ?
  224. Elekit tu 879s upgrades
  225. EZ80 Choke Input Max Capacitance
  226. Correct measurement of filament voltage.
  227. Who put the "half" in the Koren SPICE equation
  228. 5Y3 tube rectifier
  229. Triode or ultraliner connected ?
  230. What is the "Tube Sound"?
  231. Here are some 12B4A, CCS, Preamp Circuit and Spice models
  232. Which KT88 ?
  233. Why make a tube amp that sounds like a SS amp?
  234. Mark VI power Supply
  235. audioromy fu29 - not working, repair or scrap?
  236. Valve amp questions for someone new to them.
  237. Driving Parallel Tubes
  238. Matching quad set
  239. Anyone listen a 46 in UL mode ?
  240. McIntosh MC30 vs. Fisher 80-AZ
  241. Voltage Divider at input to Power Amp
  242. Checking EL84 with Eico 625
  243. Dynaclone ST70 6F2 Alternative
  244. Nobsound MS10D
  245. Need Help - Monoblock Power Amplifier EL 34
  246. Replace output transformers in Dynaco ST70
  247. 6P14P-EV in my Simple P-P
  248. Help finding a new tube headphone amp
  249. Cost of building from scratch
  250. Help with loadlines in p.s.e.

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