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  1. Back From the Dead- A NOS Tube Story
  2. application for ccs/gyrator board from the groupbuy
  3. Building a tube radio
  4. Three more articles for the WW Archive
  5. Amplifier antics
  6. what about a tube makes it UL recommended
  7. 6as7 p-p with transformer phase-splitter
  8. Large power push pull output transformers, say 150W
  9. I need a schematic for a amp project
  10. Preamp resistors calculation for http://www.shine7.com
  11. Best replacement solid state rectifiers for a 400V 125 mA supply in a tube amp
  12. Dynakit PAS-2 Filament Voltage Question - replaced Selenium rectifier
  13. Vintage tubes
  14. Amp PSU standby and PA switching
  15. 245 tubes
  16. Vacuum tube clock radio
  17. First Project, need some help
  18. Graetz Scerzo Schematic
  19. simple se 2a3 amp help!!!!!
  20. 5bc3 rectifier
  21. Help me improve this PSU. (6c33 set, voltage doubler)
  22. Choke Loaded Driver Load Lines Question
  23. CCS and tube aging
  24. Tetra lives!!!!!
  25. Tube shops/supplies in Brisbane/Gold Coast
  26. AC VT25 filament?
  27. Let's show go on: Building Monster SE!
  28. Mystery 6AQ5A powered chassis?
  29. 6Y6G tube for low-voltage SE amplifier?
  30. Jolida gain and negative feedback?
  31. 1/2 of the tube for each channel?
  32. Problem with Legacy pentode driver stage
  33. 845 Operating Point
  34. Tube rectifiers
  35. D76 Inrush current limiter thermistor?
  36. New to Tubes? How to get the basics, read on..
  37. interstage tansformer impedence
  38. 2 PSU sharing the same Power transformer?
  39. Biasing amp
  40. CCS placement
  41. clueless on console
  42. Popping in stepped volume control
  43. 6by5 CRC Values
  44. Is this do-able?
  45. PCB for Gary Pimm's CCS & SS Pentode
  46. EL86 Single Ended PP Power Amplifier
  47. Diyhifisupply Billies - dead OPTs?
  48. 6H30P-DR
  49. Tube AMP and stax headphones....
  50. soft start power supply for dynaco st-70
  51. The Telefunken EF86?
  52. Can you run parallel circuits from a rectifier?
  53. Mullard 5-20 with 6L6GC's?
  54. Adding balanced input to 6N1P tube.
  55. Partial feedback (anode grid) with cathode follower
  56. 4P1L as First gain stage or in Pre-Amp..?
  57. Advice on 6418 design requested
  58. Shorting jumpers for octal sockets
  59. Tube lineup in an Admiral y4302
  60. John Broskie MIA?
  61. Audio Research VT 100 MKII need help!!
  62. Help with AD30 PSU build
  63. Who was the Japanese Amp Guru?
  64. 6922 vs an ECC82.....a test.
  65. Triode connected 6LW6 for SE
  66. 12AD7???
  67. New Book Review
  68. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  69. looking for hi volt commercial power supplies
  70. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  71. ECC85
  72. Pioneer 304B fm/am reciever schematic
  73. ECC82 JJ Made in Slovak Republic!?
  74. Definition of matched
  75. Polycarbonate as coupling caps?
  76. pick tubes for tubecad unbalancer
  77. OPT for EL34
  78. 12v dc tube amp/pre high SQ
  79. Better than 12au7?
  80. Amps and 4-ohm loads
  81. What is the "best" tube amp / speaker / source you have ever used?
  82. 814 as Triode / Max. Ug2 voltage
  83. valves better than solid state?
  84. musical fidelity x10d clone
  85. Acrosound 7591A amp
  86. suggestions for simple amp wanted
  87. Wish you could nail down your copper wool holder?
  88. HELP- Pricing Genuine Genalex KT77's
  89. K120 on 6550/KT88/KT90 anyone tried???
  90. do tubes ever leak b+ into heaters?
  91. How can I use these high-current, low-inductance chokes?
  92. 6005w Q+introduction
  93. Sonic Frontiers Line 3 Increate the Output Voltage
  94. Dynaco ST-70 chassis
  95. Opinion on the scheme with the 12AX7!
  96. Fully Parametric Tube EQ (with gyrators)
  97. 600v snap-in electrolytics
  98. anyone knows of 6 channel tube amplier ?
  99. 6N6P SE idea
  100. EL84
  101. Long tails and current sources
  102. How to reduce gain in mu-follower?
  103. Chassis
  104. Single Ended Amplifier 6P43P
  105. 6C33C spacing
  106. A very excitable Luminescence
  107. KT-88 Data sheet question.
  108. Good 12ax7
  109. Operating points theory...
  110. 1-stage (killer, literally) amp made of junk
  111. Two bridges and a CT transformer....
  112. What should clipping look like? (AKA reading sine waves)
  113. Combining coupling cap's
  114. Quicksilver Mono Amp Model 1300 - creating Auto Bias wanted
  115. 845 with kathode bias
  116. Mixing Resistor types?
  117. Looking for EI-75 80% perm ...
  118. Ambient temperature target
  119. Old radio
  120. JJ glowing twice as bright
  121. DPA150
  122. Discharging a capacitor - should I??
  123. German transformer builder
  124. 6P30B-V subminiature tube
  125. Improved Tube Headphones Amp
  126. Best method of reducing line voltage into vintage transformers?
  127. Harman-Kardon TA5000X, A500 or A50K OPT - Quality?
  128. hum measurement
  129. DIY 450VA+ multi-tapped tube power trafo
  130. DIY 450VA+ multi-tapped tube power trafo
  131. Duelund Alexander Copper Foil Capacitors
  132. Yaqin MS-20L tube recommendation
  133. Tube version of aleph-x. Is it possible?
  134. help - Looking for specs Trimax TA1439
  135. where can i get transformers in the UK?
  136. Mono 5W-17W Power Amp using EL84 push-pull
  137. Reference Books
  138. Tresco?
  139. BELL 3DT, Phono RIAA Odditty
  140. 6SL7/6V6 tubes in an RH84 SE amplifier?
  141. How to calculate max voltage swing in cathode follower?
  142. Power Transformer Temp
  143. Silvaweld OTL Tube Reference 100 schematics
  144. Need suggestion for 6.3V-0-6.3V
  145. Unison Research SMART 845
  146. 26/45 SE amp ?
  147. Sweep Tube SEP
  148. Help me find cirquit, I forgot where I last saw it?
  149. Plate resistor for FVP5a
  150. Simulation
  151. DHT w/ DC heater - How to rig cathode bias?
  152. schematics needed- Luxman MQ70
  153. CSS for 6c33?
  154. Svetlana (Winged C) 6L6GC vs. the Others...
  155. Power Supply Help- 807's, High Voltage
  156. Looking for info about a 1940s Amp
  157. More amplifiers in the Wireless World Archive
  158. why does my amp require a preamp?
  159. Why two GZ34 in this schematic?
  160. Floating Dc heaters, capacitor to ground
  161. anyone have experience with 1J17B tube
  162. Preventing arcing on standby switch?
  163. Help with buzzing mains transformer
  164. Balanced Amp Topology
  165. ECC33
  166. Distortion spectrum vs feedback
  167. Heaters question
  168. Why do transformers have such*&%#* hardware?
  169. what's my fisher 400 off gassing?
  170. Executone schematic needed
  171. parafeed output amplifier
  172. B+K 500 Testor Question
  173. CCCP SUBTUBE: my last project
  174. Aikido Line-Stage jumper question
  175. Tube Amplifier to power Gale GS401 speakers
  176. Bypass Cap on cathode?
  177. How to measure/calculate dB of negative feedback?
  178. Need your advices & experiences
  179. Parmeko gresham transformers specifications
  180. Valve cascodes for Phono input.
  181. ST-70 XLR Balanced Driver Boad
  182. I'm new here any places for like us newbies?
  183. Noob looking for some advice
  184. QQE04/5 Curves
  185. Help on Audio Research D79A adjustment
  186. lazarus preamp hums even with volume down and no components connected.
  187. Troubles when elevating a LT supply
  188. Turning up the heat: cathode bias
  189. Anyone build Dynaco Mk IIIs with Sullivan boards?
  190. Lowering gain on Frank's 6SN7 preamp
  191. Pro amp input modification
  192. Sanity of compactron for "integrated" headphone amp?
  193. vdc drop
  194. HELP - SMART 845 or 300B SE
  195. DC Servo - Direct Coupling Applications?
  196. Edison 12 amplifier
  197. Mounting terminal strips to blank copper board
  198. 6C33C tube socket for GM70 tube??
  199. Fisher X100C 2 sets speakers?
  200. 4P1L DHT Line Stage
  201. Trying to identify an old radio tube
  202. Yaqin CD3 upgrading caps help for novice
  203. push pull adjustable fixed bias
  204. Another SE amp design.
  205. Chassis to experiment with....
  206. Ray Butts Echosonic #27
  207. What coupling capacitor values are common
  208. Yamamoto A-09s
  209. 9001 variant of Acorn 954 Pentode
  210. Khron-Hite UHR220 tube power source
  211. Grounding the 4ohm tap
  212. Rectifier mechanical buzz
  213. Informed opinion(s) on phase inversion?
  214. Computer grade electrolytics
  215. Strange problem with Grundig CS200 tube receiver
  216. Puresound P10 RIAA
  217. Need help on DIY Toccata Phono Preamp
  218. Single 6EB8 tube kit?
  219. SE OPT as PS choke
  220. Best input DHT tube?
  221. Stainless Steel Chassis Polishing
  222. Hm, which order to replace 2 out of 4 tubes?
  223. EL34 Musical Machine Output XFMR suggestions
  224. Driver stage to finals newbie questions - (I hope not dumb questions)
  225. Preamp with single 12ax7 Ecc83 for stereo?
  226. Ming-Da MC-300B845 schematic needed
  227. My RH84 Build - first amp after a 25 year break -:)
  228. Jolida 502a Snubber Mod
  229. Again
  230. KT120, PSE
  231. 6v6 bias with cathodyne
  232. How did the "magic eye" work on old valve radios ?
  233. High voltage switching
  234. High voltage switching
  235. EF184 as ccs / design questions / spice model
  236. ECC807
  237. Chassis thickness
  238. Compactron 6C10 & 6Q11/6K11 tube data
  239. Reverse Engineering leads from Tube amp
  240. Did you all see this??
  241. WESTREX 60 WATT AMP
  242. Johari's audio system
  243. el95 single ended amp project needs help with preamp
  244. SS Rectifers and Zero-Crossing Distortion, possible fix or idotic idea?
  245. 3 ways active crossover
  246. 5691 tube tonal balance
  247. Dynaco Mark III chassis
  248. variac - breadboard with choke input
  249. Stancor A-8053 Output Transformer - opinions wanted!
  250. Nice OPT's for headphone amp...

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