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  1. John Broskie MIA?
  2. Audio Research VT 100 MKII need help!!
  3. Help with AD30 PSU build
  4. Who was the Japanese Amp Guru?
  5. 6922 vs an ECC82.....a test.
  6. Triode connected 6LW6 for SE
  7. 12AD7???
  8. New Book Review
  9. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  10. looking for hi volt commercial power supplies
  11. 6L6, 6L6GT, 6L6GC, 5881, 7027, KT66...
  12. ECC85
  13. Pioneer 304B fm/am reciever schematic
  14. ECC82 JJ Made in Slovak Republic!?
  15. Definition of matched
  16. Polycarbonate as coupling caps?
  17. pick tubes for tubecad unbalancer
  18. OPT for EL34
  19. 12v dc tube amp/pre high SQ
  20. Better than 12au7?
  21. Amps and 4-ohm loads
  22. What is the "best" tube amp / speaker / source you have ever used?
  23. 814 as Triode / Max. Ug2 voltage
  24. valves better than solid state?
  25. musical fidelity x10d clone
  26. Acrosound 7591A amp
  27. suggestions for simple amp wanted
  28. Wish you could nail down your copper wool holder?
  29. HELP- Pricing Genuine Genalex KT77's
  30. K120 on 6550/KT88/KT90 anyone tried???
  31. do tubes ever leak b+ into heaters?
  32. How can I use these high-current, low-inductance chokes?
  33. 6005w Q+introduction
  34. Sonic Frontiers Line 3 Increate the Output Voltage
  35. Dynaco ST-70 chassis
  36. Opinion on the scheme with the 12AX7!
  37. Fully Parametric Tube EQ (with gyrators)
  38. 600v snap-in electrolytics
  39. anyone knows of 6 channel tube amplier ?
  40. 6N6P SE idea
  41. EL84
  42. Long tails and current sources
  43. How to reduce gain in mu-follower?
  44. Chassis
  45. Single Ended Amplifier 6P43P
  46. 6C33C spacing
  47. A very excitable Luminescence
  48. KT-88 Data sheet question.
  49. Good 12ax7
  50. Operating points theory...
  51. 1-stage (killer, literally) amp made of junk
  52. Two bridges and a CT transformer....
  53. What should clipping look like? (AKA reading sine waves)
  54. Combining coupling cap's
  55. Quicksilver Mono Amp Model 1300 - creating Auto Bias wanted
  56. 845 with kathode bias
  57. Mixing Resistor types?
  58. Looking for EI-75 80% perm ...
  59. Ambient temperature target
  60. Old radio
  61. JJ glowing twice as bright
  62. DPA150
  63. Discharging a capacitor - should I??
  64. German transformer builder
  65. 6P30B-V subminiature tube
  66. Improved Tube Headphones Amp
  67. Best method of reducing line voltage into vintage transformers?
  68. Harman-Kardon TA5000X, A500 or A50K OPT - Quality?
  69. hum measurement
  70. DIY 450VA+ multi-tapped tube power trafo
  71. DIY 450VA+ multi-tapped tube power trafo
  72. Duelund Alexander Copper Foil Capacitors
  73. Yaqin MS-20L tube recommendation
  74. Tube version of aleph-x. Is it possible?
  75. help - Looking for specs Trimax TA1439
  76. where can i get transformers in the UK?
  77. Mono 5W-17W Power Amp using EL84 push-pull
  78. Reference Books
  79. Tresco?
  80. BELL 3DT, Phono RIAA Odditty
  81. 6SL7/6V6 tubes in an RH84 SE amplifier?
  82. How to calculate max voltage swing in cathode follower?
  83. Power Transformer Temp
  84. Silvaweld OTL Tube Reference 100 schematics
  85. Need suggestion for 6.3V-0-6.3V
  86. Unison Research SMART 845
  87. 26/45 SE amp ?
  88. V2 rocket guidance system.
  89. Sweep Tube SEP
  90. Help me find cirquit, I forgot where I last saw it?
  91. Passive or Active? For Wet/Dry mix on valve driven reverb.
  92. Plate resistor for FVP5a
  93. Simulation
  94. DHT w/ DC heater - How to rig cathode bias?
  95. schematics needed- Luxman MQ70
  96. CSS for 6c33?
  97. Svetlana (Winged C) 6L6GC vs. the Others...
  98. Power Supply Help- 807's, High Voltage
  99. Looking for info about a 1940s Amp
  100. More amplifiers in the Wireless World Archive
  101. why does my amp require a preamp?
  102. Why two GZ34 in this schematic?
  103. Floating Dc heaters, capacitor to ground
  104. anyone have experience with 1J17B tube
  105. Preventing arcing on standby switch?
  106. Help with buzzing mains transformer
  107. Balanced Amp Topology
  108. ECC33
  109. Distortion spectrum vs feedback
  110. Heaters question
  111. Why do transformers have such*&%#* hardware?
  112. what's my fisher 400 off gassing?
  113. Executone schematic needed
  114. parafeed output amplifier
  115. B+K 500 Testor Question
  116. CCCP SUBTUBE: my last project
  117. Aikido Line-Stage jumper question
  118. Tube Amplifier to power Gale GS401 speakers
  119. Bypass Cap on cathode?
  120. How to measure/calculate dB of negative feedback?
  121. Need your advices & experiences
  122. Parmeko gresham transformers specifications
  123. Valve cascodes for Phono input.
  124. ST-70 XLR Balanced Driver Boad
  125. I'm new here any places for like us newbies?
  126. Noob looking for some advice
  127. Stand Alone guitar power amp for evaluation
  128. QQE04/5 Curves
  129. Help on Audio Research D79A adjustment
  130. lazarus preamp hums even with volume down and no components connected.
  131. Troubles when elevating a LT supply
  132. Turning up the heat: cathode bias
  133. Anyone build Dynaco Mk IIIs with Sullivan boards?
  134. Lowering gain on Frank's 6SN7 preamp
  135. Pro amp input modification
  136. Sanity of compactron for "integrated" headphone amp?
  137. vdc drop
  138. HELP - SMART 845 or 300B SE
  139. DC Servo - Direct Coupling Applications?
  140. Edison 12 amplifier
  141. Mounting terminal strips to blank copper board
  142. 6C33C tube socket for GM70 tube??
  143. Fisher X100C 2 sets speakers?
  144. 4P1L DHT Line Stage
  145. Trying to identify an old radio tube
  146. Yaqin CD3 upgrading caps help for novice
  147. push pull adjustable fixed bias
  148. Another SE amp design.
  149. Chassis to experiment with....
  150. Ray Butts Echosonic #27
  151. Ampeg Reverberocket II Hum
  152. What coupling capacitor values are common
  153. Yamamoto A-09s
  154. 9001 variant of Acorn 954 Pentode
  155. Khron-Hite UHR220 tube power source
  156. Grounding the 4ohm tap
  157. Rectifier mechanical buzz
  158. Informed opinion(s) on phase inversion?
  159. Computer grade electrolytics
  160. Strange problem with Grundig CS200 tube receiver
  161. Puresound P10 RIAA
  162. Need help on DIY Toccata Phono Preamp
  163. Single 6EB8 tube kit?
  164. SE OPT as PS choke
  165. Best input DHT tube?
  166. Stainless Steel Chassis Polishing
  167. Hm, which order to replace 2 out of 4 tubes?
  168. EL34 Musical Machine Output XFMR suggestions
  169. Driver stage to finals newbie questions - (I hope not dumb questions)
  170. Preamp with single 12ax7 Ecc83 for stereo?
  171. Ming-Da MC-300B845 schematic needed
  172. My RH84 Build - first amp after a 25 year break -:)
  173. Jolida 502a Snubber Mod
  174. Again
  175. KT120, PSE
  176. 6v6 bias with cathodyne
  177. How did the "magic eye" work on old valve radios ?
  178. High voltage switching
  179. High voltage switching
  180. EF184 as ccs / design questions / spice model
  181. ECC807
  182. Chassis thickness
  183. Compactron 6C10 & 6Q11/6K11 tube data
  184. Output voltage guitar preamp
  185. Reverse Engineering leads from Tube amp
  186. Did you all see this??
  187. WESTREX 60 WATT AMP
  188. Johari's audio system
  189. el95 single ended amp project needs help with preamp
  190. SS Rectifers and Zero-Crossing Distortion, possible fix or idotic idea?
  191. 3 ways active crossover
  192. 5691 tube tonal balance
  193. Dynaco Mark III chassis
  194. variac - breadboard with choke input
  195. Stancor A-8053 Output Transformer - opinions wanted!
  196. Nice OPT's for headphone amp...
  197. Eimac 304TH anode question
  198. Is WE310A > 45 > 300B PP possible?
  199. Aikido 5687 PCB - Headphone and C3
  200. Twist-lok caps?
  201. Tube RIAA(something easy)
  202. Testing power pentodes
  203. NTC THERMISTOR as SOFT START for TUBES
  204. NEW ARIA (MENG) MINI 6P1
  205. Basic schematic for Dodd Audio tube buffer?
  206. EL844
  207. 3 channel all tube preamp pedal w/fx loops for all clone build
  208. Tube CAD?
  209. Cap Problem with philco 49-1401
  210. Music Angel
  211. Help 7189A Tubes!
  212. Bulb in cathode?
  213. Gain and volume pots - newbie question
  214. Resistor test TX7525 AMRG CMF55
  215. I think I made a mistake
  216. 12at7 and 12au7
  217. PSE KT88 using Mikael's basic schematic.....
  218. PSU sanity check - negative rail?
  219. Mods Tube Amps/Pre-amp
  220. Help to find out what OPT are these
  221. LL1660 P PZ Lundahl interstage ringing problem GM70pp
  222. Possible PS chokes
  223. Adding Bal output to Akido
  224. Input impedance, the higher the better or not?
  225. Risk of DC coupled input with tube pre-amp ?
  226. UL Cascode phono
  227. DC Imbalance with the LTP
  228. More Wireless World articles archived
  229. Yaqin VK-2100 Static from one channel
  230. Direct Coupled, Self Biasing, CCS Loaded, 300B Amp
  231. Testing a 300A on a B&K
  232. Diodes to tube
  233. PL84/EL86 push pull
  234. circuit diagram
  235. Ultralinear operation
  236. 60hz hum in component system
  237. Crackling Amp
  238. Regulated Supply for Direct Coupled Amp
  239. Explanation wanted
  240. Dynaco FM1 stereo updating ?
  241. tube amp diy off. Is this a good deal?
  242. SE driver
  243. DN2540 + LM317 cascode CCS?
  244. Recapping old tube amp
  245. How a SRPP stage sounds like?
  246. Help troubleshooting SE Pentode amp
  247. What meter for Bias?
  248. Mains tranformer noise
  249. Tube tester block diagram
  250. got a custom 829b amp that i got laying around, need to know what driver to use

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