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  1. Three more articles for the WW Archive
  2. Amplifier antics
  3. what about a tube makes it UL recommended
  4. 6as7 p-p with transformer phase-splitter
  5. Large power push pull output transformers, say 150W
  6. I need a schematic for a amp project
  7. Preamp resistors calculation for http://www.shine7.com
  8. Best replacement solid state rectifiers for a 400V 125 mA supply in a tube amp
  9. Dynakit PAS-2 Filament Voltage Question - replaced Selenium rectifier
  10. Vintage tubes
  11. Amp PSU standby and PA switching
  12. 245 tubes
  13. Vacuum tube clock radio
  14. First Project, need some help
  15. Graetz Scerzo Schematic
  16. 5bc3 rectifier
  17. Help me improve this PSU. (6c33 set, voltage doubler)
  18. Choke Loaded Driver Load Lines Question
  19. CCS and tube aging
  20. Tetra lives!!!!!
  21. Tube shops/supplies in Brisbane/Gold Coast
  22. AC VT25 filament?
  23. Let's show go on: Building Monster SE!
  24. Mystery 6AQ5A powered chassis?
  25. 6Y6G tube for low-voltage SE amplifier?
  26. Jolida gain and negative feedback?
  27. 1/2 of the tube for each channel?
  28. Problem with Legacy pentode driver stage
  29. 845 Operating Point
  30. Tube rectifiers
  31. D76 Inrush current limiter thermistor?
  32. New to Tubes? How to get the basics, read on..
  33. interstage tansformer impedence
  34. 2 PSU sharing the same Power transformer?
  35. Biasing amp
  36. CCS placement
  37. clueless on console
  38. Popping in stepped volume control
  39. 6by5 CRC Values
  40. Is this do-able?
  41. PCB for Gary Pimm's CCS & SS Pentode
  42. EL86 Single Ended PP Power Amplifier
  43. Diyhifisupply Billies - dead OPTs?
  44. 6H30P-DR
  45. Tube AMP and stax headphones....
  46. soft start power supply for dynaco st-70
  47. The Telefunken EF86?
  48. Can you run parallel circuits from a rectifier?
  49. Mullard 5-20 with 6L6GC's?
  50. Adding balanced input to 6N1P tube.
  51. Partial feedback (anode grid) with cathode follower
  52. 4P1L as First gain stage or in Pre-Amp..?
  53. Advice on 6418 design requested
  54. Tube lineup in an Admiral y4302
  55. John Broskie MIA?
  56. Audio Research VT 100 MKII need help!!
  57. Help with AD30 PSU build
  58. Who was the Japanese Amp Guru?
  59. 6922 vs an ECC82.....a test.
  60. Triode connected 6LW6 for SE
  61. 12AD7???
  62. New Book Review
  63. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  64. looking for hi volt commercial power supplies
  65. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  66. ECC85
  67. Pioneer 304B fm/am reciever schematic
  68. ECC82 JJ Made in Slovak Republic!?
  69. Definition of matched
  70. pick tubes for tubecad unbalancer
  71. OPT for EL34
  72. 12v dc tube amp/pre high SQ
  73. Better than 12au7?
  74. Amps and 4-ohm loads
  75. 814 as Triode / Max. Ug2 voltage
  76. musical fidelity x10d clone
  77. Acrosound 7591A amp
  78. suggestions for simple amp wanted
  79. Wish you could nail down your copper wool holder?
  80. HELP- Pricing Genuine Genalex KT77's
  81. K120 on 6550/KT88/KT90 anyone tried???
  82. do tubes ever leak b+ into heaters?
  83. How can I use these high-current, low-inductance chokes?
  84. 6005w Q+introduction
  85. Sonic Frontiers Line 3 Increate the Output Voltage
  86. Dynaco ST-70 chassis
  87. Opinion on the scheme with the 12AX7!
  88. Fully Parametric Tube EQ (with gyrators)
  89. anyone knows of 6 channel tube amplier ?
  90. 6N6P SE idea
  91. EL84
  92. Long tails and current sources
  93. How to reduce gain in mu-follower?
  94. Single Ended Amplifier 6P43P
  95. 6C33C spacing
  96. A very excitable Luminescence
  97. KT-88 Data sheet question.
  98. Good 12ax7
  99. Operating points theory...
  100. What should clipping look like? (AKA reading sine waves)
  101. Quicksilver Mono Amp Model 1300 - creating Auto Bias wanted
  102. 845 with kathode bias
  103. Looking for EI-75 80% perm ...
  104. Ambient temperature target
  105. Old radio
  106. JJ glowing twice as bright
  107. DPA150
  108. Discharging a capacitor - should I??
  109. German transformer builder
  110. 6P30B-V subminiature tube
  111. Improved Tube Headphones Amp
  112. Best method of reducing line voltage into vintage transformers?
  113. Harman-Kardon TA5000X, A500 or A50K OPT - Quality?
  114. hum measurement
  115. DIY 450VA+ multi-tapped tube power trafo
  116. DIY 450VA+ multi-tapped tube power trafo
  117. Duelund Alexander Copper Foil Capacitors
  118. Yaqin MS-20L tube recommendation
  119. Tube version of aleph-x. Is it possible?
  120. help - Looking for specs Trimax TA1439
  121. Mono 5W-17W Power Amp using EL84 push-pull
  122. Reference Books
  123. Tresco?
  124. BELL 3DT, Phono RIAA Odditty
  125. 6SL7/6V6 tubes in an RH84 SE amplifier?
  126. How to calculate max voltage swing in cathode follower?
  127. Silvaweld OTL Tube Reference 100 schematics
  128. Unison Research SMART 845
  129. 26/45 SE amp ?
  130. Sweep Tube SEP
  131. Help me find cirquit, I forgot where I last saw it?
  132. Plate resistor for FVP5a
  133. DHT w/ DC heater - How to rig cathode bias?
  134. schematics needed- Luxman MQ70
  135. CSS for 6c33?
  136. Svetlana (Winged C) 6L6GC vs. the Others...
  137. Power Supply Help- 807's, High Voltage
  138. Looking for info about a 1940s Amp
  139. More amplifiers in the Wireless World Archive
  140. why does my amp require a preamp?
  141. Why two GZ34 in this schematic?
  142. Floating Dc heaters, capacitor to ground
  143. anyone have experience with 1J17B tube
  144. Preventing arcing on standby switch?
  145. Help with buzzing mains transformer
  146. Balanced Amp Topology
  147. ECC33
  148. Distortion spectrum vs feedback
  149. Heaters question
  150. what's my fisher 400 off gassing?
  151. Executone schematic needed
  152. parafeed output amplifier
  153. CCCP SUBTUBE: my last project
  154. Aikido Line-Stage jumper question
  155. Tube Amplifier to power Gale GS401 speakers
  156. Bypass Cap on cathode?
  157. How to measure/calculate dB of negative feedback?
  158. Need your advices & experiences
  159. Parmeko gresham transformers specifications
  160. Valve cascodes for Phono input.
  161. ST-70 XLR Balanced Driver Boad
  162. I'm new here any places for like us newbies?
  163. Noob looking for some advice
  164. QQE04/5 Curves
  165. Help on Audio Research D79A adjustment
  166. lazarus preamp hums even with volume down and no components connected.
  167. Troubles when elevating a LT supply
  168. Turning up the heat: cathode bias
  169. Anyone build Dynaco Mk IIIs with Sullivan boards?
  170. Lowering gain on Frank's 6SN7 preamp
  171. Pro amp input modification
  172. Sanity of compactron for "integrated" headphone amp?
  173. HELP - SMART 845 or 300B SE
  174. DC Servo - Direct Coupling Applications?
  175. Edison 12 amplifier
  176. 6C33C tube socket for GM70 tube??
  177. Fisher X100C 2 sets speakers?
  178. 4P1L DHT Line Stage
  179. Trying to identify an old radio tube
  180. Yaqin CD3 upgrading caps help for novice
  181. push pull adjustable fixed bias
  182. Another SE amp design.
  183. Ray Butts Echosonic #27
  184. What coupling capacitor values are common
  185. Yamamoto A-09s
  186. 9001 variant of Acorn 954 Pentode
  187. Grounding the 4ohm tap
  188. Rectifier mechanical buzz
  189. Informed opinion(s) on phase inversion?
  190. Strange problem with Grundig CS200 tube receiver
  191. Puresound P10 RIAA
  192. Need help on DIY Toccata Phono Preamp
  193. Single 6EB8 tube kit?
  194. SE OPT as PS choke
  195. Best input DHT tube?
  196. Hm, which order to replace 2 out of 4 tubes?
  197. EL34 Musical Machine Output XFMR suggestions
  198. Driver stage to finals newbie questions - (I hope not dumb questions)
  199. Preamp with single 12ax7 Ecc83 for stereo?
  200. Ming-Da MC-300B845 schematic needed
  201. My RH84 Build - first amp after a 25 year break -:)
  202. Jolida 502a Snubber Mod
  203. Again
  204. KT120, PSE
  205. 6v6 bias with cathodyne
  206. How did the "magic eye" work on old valve radios ?
  207. High voltage switching
  208. EF184 as ccs / design questions / spice model
  209. ECC807
  210. Compactron 6C10 & 6Q11/6K11 tube data
  211. Reverse Engineering leads from Tube amp
  212. Did you all see this??
  213. WESTREX 60 WATT AMP
  214. Johari's audio system
  215. el95 single ended amp project needs help with preamp
  216. 3 ways active crossover
  217. 5691 tube tonal balance
  218. Dynaco Mark III chassis
  219. Stancor A-8053 Output Transformer - opinions wanted!
  220. Nice OPT's for headphone amp...
  221. Eimac 304TH anode question
  222. Is WE310A > 45 > 300B PP possible?
  223. Aikido 5687 PCB - Headphone and C3
  224. Tube RIAA(something easy)
  225. Testing power pentodes
  226. NTC Thermistor As Soft Start For Tubes
  227. NEW ARIA (MENG) MINI 6P1
  228. Basic schematic for Dodd Audio tube buffer?
  229. EL844
  230. Tube CAD?
  231. Cap Problem with philco 49-1401
  232. Music Angel
  233. Help 7189A Tubes!
  234. Bulb in cathode?
  235. Gain and volume pots - newbie question
  236. Resistor test TX7525 AMRG CMF55
  237. I think I made a mistake
  238. 12at7 and 12au7
  239. PSE KT88 using Mikael's basic schematic.....
  240. Mods Tube Amps/Pre-amp
  241. Help to find out what OPT are these
  242. LL1660 P PZ Lundahl interstage ringing problem GM70pp
  243. Adding Bal output to Akido
  244. Input impedance, the higher the better or not?
  245. Risk of DC coupled input with tube pre-amp ?
  246. UL Cascode phono
  247. DC Imbalance with the LTP
  248. More Wireless World articles archived
  249. Yaqin VK-2100 Static from one channel
  250. Direct Coupled, Self Biasing, CCS Loaded, 300B Amp

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