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  1. DIY AN M7 need help !!!
  2. Need schematic for Bell 2420 amp
  3. new SimpleSE build
  4. My Citation II Rebuild
  5. KT88 cathode resistors?
  6. Dynaco ST35 boards
  7. Triode strapping a 6V6 (or any tetrode/pentode, really)
  8. ECC 83 + ELL 80 maybe?
  9. need amp suggestions please.
  10. Phase splitter which tube?
  11. WANTED: 12B4A tubes
  12. re-stacking an output transformer
  13. A directly heated triode or Pentode SE amp on a Budget
  14. Annoying high frequency ringing from my 832 tube amp
  15. 30 Amp Knobs
  16. A question about audio interconnects for the ones here with such knowledge.
  17. Hi-end GM70 amplifier with only 2 stages
  18. Paragon
  19. Simple SE with CCS and fixed bias
  20. Idea(s) for simple HV regulated psu
  21. NOS Philips "miniwatt/dario" tubes
  22. Hybrid Class D with 6n6p tubes
  23. Any ideas how to estimate VA or mA of Power Tranny
  24. 6L6 Grid resistors??
  25. HeathKit W-2: Missing Tube
  26. Edcor CXSE25-8-5K Dimensions
  27. Bias Pots
  28. Negative Feedback
  29. scott 299D output transformers?
  30. chocke anode load, please explain me..
  31. Integrated HiEnd Amp
  32. Looking for advice/tips regarding simple SE amplifer
  33. Tube amps from vintage RTR's?
  34. componet upgrade
  35. What is "AA" ?
  36. question about twin triode tubes
  37. Building a preamp - somewhat new to tubes
  38. need some guidance about tube amplifiers
  39. Blackgate FK 10000 uF ??
  40. PT failure dangers
  41. Outer foil k40y-9
  42. sansui 1000a maintenance
  43. filter cap question
  44. add UL tap for 125ese
  45. Bogen D070 Amp - HELP w/ INFO.
  46. Humming asl 2004dt wave pre amp
  47. Cany anyone supply any info. about this amplifier?
  48. Low voltage 845SE with 300B driver
  49. Cabinet Help!!!!
  50. dc heater supply help
  51. gu-29 tube
  52. LTP question
  53. Over 500V rated electrolytics?
  54. Fireplug? (inline fuse)
  55. Help! Flash-over on my amp :-(
  56. 6550 drive question
  57. 4211D Amp?
  58. Please, reccomand me about 7233 GE NOS
  59. Help! Schematic Conrad Johnson Premier 3
  60. Tubelab SE in parallel?
  61. Just an Idea?
  62. Tried this out, but needs more gain. . .
  63. EL34 Power Stage
  64. Daven Question
  65. How many rectifiers can have mesh plates?
  66. Real Quick Question!!
  67. Wattage of vintage resistors ?
  68. What is the signal path -- the red line?
  69. Hi-end definitive vacuum tube phono pre
  70. Resistors for Stepped Attenuator
  71. dual rectifier clone....
  72. Motorola Console Salvage
  73. single endedtransformer coupled 6sn7 mic preamp
  74. Brett's 12B4 schematic?
  75. insulated turret terminals
  76. Building first tube power amplifier, reccomendations?
  77. Can you use a MOSFET as a cathodyne
  78. Resolving cold midrange in 5687 circuit
  79. 829B SE Comments????
  80. Shielding and regulator location in the KTA 26 preamp
  81. Voice of music, antique or reproduction?
  82. Quick Question - Audio Note M1 or AR SP-6?
  83. Red Light District/Baby Huey (EL84 P-P) Output Iron
  84. help with PSE design
  85. Tantalum VS CC & metalfilm
  86. Rise-time question
  87. Have an odd problem with my Aikido.
  88. Weird Hybrid Splitter (equal impedances?)
  89. Tube 6550 to test
  90. Using semiconductor curvetracer for tubes...
  91. Question regarding 3rd wire grounding and safety
  92. Plate Current VS Plate Voltage Graphs
  93. Toggle Switch Contact Type and Rating
  94. Inside information on Shuguang
  95. 6N6P vs. 6N6P-I
  96. Technical Survey Paper -- Need Some Help!
  97. VOLTAGE DOUBLER : drop in current?
  98. Using genetic algorithms to optimize pentode parameters
  99. Favorite size wire for signal wiring?
  100. Any idea what this thing is?
  101. Breadboarding Poindexter's 6GK5/EL34 Music Machine
  102. anyone ever use el86/6cw5?
  103. bad 5ar4?
  104. 6DJ8 biasing question
  105. Is it worth using anything other than DHTs for preamps?
  106. Billington Export Ltd Tubes?
  107. 845SE : comments on this circuit?
  108. Tip-Restoring Vintage Pot
  109. B+ Delay - Is this a problem?
  110. Toroids in SET
  111. I have to sell my Pyramid-V prototype...
  112. Stealing a preamp
  113. OLD GOLD, or something I can dissassemble and use
  114. CF PP design
  115. Preamp Idea
  116. Metal Oxide Screen Stoppers
  117. Splitting up power supply inductance
  118. Back to Back transformers and safety ground
  119. Vintage tube tester
  120. 7 pin ECC81.
  121. 26 Driver Tube for 45 - Operating Points
  122. My New pre-amplifier£¡
  123. Echocord Super Question
  124. High quality matching panel meters?
  125. 6BY5GA question
  126. Seeking schematic for Conn organ amp
  127. Will this work as a differential stage?
  128. Tube ID and suggestions
  129. 6L6 to EL34 conversion
  130. my saturation test ??
  131. DO-35 diode inside vacuum tube ?
  132. Transformer Polarity
  133. Modular Gain Stages for Tube Guitar Amp
  134. Where to go for tube gear in Hong Kong?
  135. EL84 Shunt reg for pre-amp, 85A1?
  136. Tube Preamp Idea
  137. UTC Linear Standard High Level matching transformers
  138. Manley Compact 160w noise problem -please help
  139. D3a Experimenters Breadboard Project
  140. Dtmm
  141. Running Single Ended 6V6 in Triode Mode
  142. 6v6pp Finished
  143. Stereo Buffer with a single twin triode
  144. Marshall volume drop off help
  145. Anybody recognize this pentode?
  146. Original schemes of amplifiers for 45 tubes of 1920 and 1930 years?
  147. My new amplifier£_300BSE!
  148. low zout vs output transfo
  149. can't find valve art tube - and glowey tube pic
  150. Which Phono Pre???
  151. EICO HF-20 Guitar Amp Convert
  152. BB 1702 DAC + transformer I/V ?
  153. aikido build thread-
  154. Triode Connected 6BK5
  155. need help in building tube amplifier 10 watter
  156. Parasitic oscillations in general
  157. Help Russian tube experts.
  158. forced aircooling
  159. Dirty Cheap Vintage Pot Fix - Your Opinion Please
  160. ask jan first
  161. running 6S4S/6C4C hot .. calling widowmaker
  162. An Odd Duck -- Gibson BR-6f Guitar Amp
  163. Covi Mark II OTL Help
  164. Volume pot between triodes?
  165. Series Pass Transistor for TL-783
  166. Anyone else have the new Mullard EL34's?
  167. VR tubes in single ended circuits
  168. Transformer for Tube Amps?
  169. "Magga Amp Workshop" builds again (Simple 45 Project)
  170. How to handle Reclaimed Transformers
  171. Dual supply...
  172. How much would this cost/how complicated would this be...
  173. low cost DHT hum pots vendors?
  174. Tube Buffer – question?
  175. Bogen CHB 10A questions
  176. 12B4 Preamp
  177. adding output tubes etc to pre amp
  178. primaluna dialogue 5 and fanboys?
  179. yaqin mc-100b
  180. KT88 in place of 6550?
  181. Tube manaul data sheets
  182. Need a bias supply how??
  183. Wouldn't you just love to have these!. United Electronics 211's
  184. Using single tube of Dual
  185. 21st century tube? Non-Vacuum
  186. making two minibloks for stereo
  187. Lynn Olson Raven Question
  188. Inrush current limiting heater filaments
  189. Tube amp with "meter"?
  190. lytics and choke AFTER regulator
  191. Boosing the power of your existing amp.
  192. Component ID from a 50EH5 Amp
  193. Music Angel KT88 Bridged /Bias problem
  194. Output of preamp drops when overdriven
  195. Choke load calculation...
  196. 807 SE amp schematic
  197. DC Heater Voltage
  198. Choke loading vs. SRPP
  199. Unloaded Power Transformer Current Draw/Janus-Aikido snipet
  200. Need help with tubed output for PCM1793 DAC
  201. Single ended transformer grounding question
  202. Reforming Caps with Variac
  203. First Shot at a 41 SE amp
  204. [Question] Ground Error?
  205. TOMIKO OPT-SE, any good?
  206. 6550 Williamson - Low Bass Response...
  207. Preamp design question
  208. Reading Oscilloscope Traces -For Dummies
  209. Power Supply Question
  210. PI Question Guitar Amp Related
  211. Altec 1568A modifications for comments and help…. again
  212. H & K Tube 20 unruly gain
  213. Electro-Harmonix interview
  214. Using LED bias for 4.5 mA cathode current, is it a good idea?
  215. amp dead?
  216. 7189 vs EL84 +458v plate
  217. What does your Aikido drive?
  218. Help with Decware SE84 Kit!
  219. Hybrid Amplifier in Small cases
  220. audio mixer with tubes?
  221. Epiphone Galaxy 25 transformer problem
  222. Help with KT88 biasing
  223. Bad Schottky??
  224. Aikido Diagnostic
  225. Could this become a Baby Huey killer ?
  226. SV83 vs EL84
  227. KT88 PP-5 Monoblock Amplifier
  228. RE604 SET amp
  229. Dropping rectifier filament voltage
  230. need suggestion about MC pre-pre
  231. New gain stage .. Opinions???
  232. Using SS to augment < 100Hz?
  233. A help with an soviet transformer.
  234. I thought that I had seen everything
  235. Triatic PP-amp with 6p14p
  236. Single 6N6P stereo pre-amp
  237. Tubelab SE input tube filament
  238. high frequency oscillation and decoupling question
  239. Long tailed pair schematic questions
  240. CCS Kit options
  241. Variac Question for Thatch_Ear
  242. 13e1
  243. Rogers Tube Amp
  244. Pair of McIntosh MC-60 on Dallas Craigslist
  245. Lundahl LL1517. What is it good for?
  246. Edcor OPT Voltage Rating?
  247. Which Tube to Start with?
  248. Basic Transformer hookup wiring
  249. Beta followers, biasing.
  250. 6W 2xEL519 Half-hybrid Class-A OTL

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