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  1. McIntosh MC-3500 Schematic Information
  2. Use 2X SE output transformers fo 1x PP
  3. 12B4a spice model.
  4. Help identifying a capacitor
  5. recommended a tube amp for Celestron Studio Ditton 66's
  6. Help needed with bias circuit
  7. 220 Mega Ohm Resistor - Really
  8. How to bias DH dual triodes?
  9. Any of these tubes good for audio applications?
  10. DIY AN M7 need help !!!
  11. Need schematic for Bell 2420 amp
  12. new SimpleSE build
  13. My Citation II Rebuild
  14. KT88 cathode resistors?
  15. Dynaco ST35 boards
  16. Triode strapping a 6V6 (or any tetrode/pentode, really)
  17. ECC 83 + ELL 80 maybe?
  18. need amp suggestions please.
  19. Phase splitter which tube?
  20. WANTED: 12B4A tubes
  21. re-stacking an output transformer
  22. A directly heated triode or Pentode SE amp on a Budget
  23. Annoying high frequency ringing from my 832 tube amp
  24. 30 Amp Knobs
  25. A question about audio interconnects for the ones here with such knowledge.
  26. Hi-end GM70 amplifier with only 2 stages
  27. Paragon
  28. Simple SE with CCS and fixed bias
  29. Idea(s) for simple HV regulated psu
  30. NOS Philips "miniwatt/dario" tubes
  31. Hybrid Class D with 6n6p tubes
  32. Any ideas how to estimate VA or mA of Power Tranny
  33. 6L6 Grid resistors??
  34. HeathKit W-2: Missing Tube
  35. Edcor CXSE25-8-5K Dimensions
  36. Bias Pots
  37. Negative Feedback
  38. scott 299D output transformers?
  39. chocke anode load, please explain me..
  40. Integrated HiEnd Amp
  41. Looking for advice/tips regarding simple SE amplifer
  42. Tube amps from vintage RTR's?
  43. componet upgrade
  44. What is "AA" ?
  45. question about twin triode tubes
  46. Building a preamp - somewhat new to tubes
  47. need some guidance about tube amplifiers
  48. Blackgate FK 10000 uF ??
  49. PT failure dangers
  50. Outer foil k40y-9
  51. sansui 1000a maintenance
  52. filter cap question
  53. add UL tap for 125ese
  54. Bogen D070 Amp - HELP w/ INFO.
  55. Humming asl 2004dt wave pre amp
  56. Cany anyone supply any info. about this amplifier?
  57. Low voltage 845SE with 300B driver
  58. Cabinet Help!!!!
  59. dc heater supply help
  60. gu-29 tube
  61. LTP question
  62. Over 500V rated electrolytics?
  63. Fireplug? (inline fuse)
  64. Help! Flash-over on my amp :-(
  65. 6550 drive question
  66. 4211D Amp?
  67. Please, reccomand me about 7233 GE NOS
  68. Help! Schematic Conrad Johnson Premier 3
  69. Tubelab SE in parallel?
  70. Just an Idea?
  71. Tried this out, but needs more gain. . .
  72. EL34 Power Stage
  73. Daven Question
  74. How many rectifiers can have mesh plates?
  75. Real Quick Question!!
  76. Wattage of vintage resistors ?
  77. What is the signal path -- the red line?
  78. Hi-end definitive vacuum tube phono pre
  79. Resistors for Stepped Attenuator
  80. dual rectifier clone....
  81. Motorola Console Salvage
  82. single endedtransformer coupled 6sn7 mic preamp
  83. Brett's 12B4 schematic?
  84. insulated turret terminals
  85. Building first tube power amplifier, reccomendations?
  86. Can you use a MOSFET as a cathodyne
  87. Resolving cold midrange in 5687 circuit
  88. 829B SE Comments????
  89. Shielding and regulator location in the KTA 26 preamp
  90. Voice of music, antique or reproduction?
  91. Quick Question - Audio Note M1 or AR SP-6?
  92. Red Light District/Baby Huey (EL84 P-P) Output Iron
  93. help with PSE design
  94. Tantalum VS CC & metalfilm
  95. Rise-time question
  96. Have an odd problem with my Aikido.
  97. Weird Hybrid Splitter (equal impedances?)
  98. Tube 6550 to test
  99. Using semiconductor curvetracer for tubes...
  100. Question regarding 3rd wire grounding and safety
  101. Plate Current VS Plate Voltage Graphs
  102. Toggle Switch Contact Type and Rating
  103. Inside information on Shuguang
  104. 6N6P vs. 6N6P-I
  105. Technical Survey Paper -- Need Some Help!
  106. VOLTAGE DOUBLER : drop in current?
  107. Using genetic algorithms to optimize pentode parameters
  108. Favorite size wire for signal wiring?
  109. Any idea what this thing is?
  110. Breadboarding Poindexter's 6GK5/EL34 Music Machine
  111. anyone ever use el86/6cw5?
  112. bad 5ar4?
  113. 6DJ8 biasing question
  114. Is it worth using anything other than DHTs for preamps?
  115. Billington Export Ltd Tubes?
  116. 845SE : comments on this circuit?
  117. Tip-Restoring Vintage Pot
  118. B+ Delay - Is this a problem?
  119. Toroids in SET
  120. I have to sell my Pyramid-V prototype...
  121. Stealing a preamp
  122. OLD GOLD, or something I can dissassemble and use
  123. CF PP design
  124. Preamp Idea
  125. Metal Oxide Screen Stoppers
  126. Splitting up power supply inductance
  127. Back to Back transformers and safety ground
  128. Vintage tube tester
  129. 7 pin ECC81.
  130. 26 Driver Tube for 45 - Operating Points
  131. My New pre-amplifier£¡
  132. Echocord Super Question
  133. High quality matching panel meters?
  134. 6BY5GA question
  135. Seeking schematic for Conn organ amp
  136. Will this work as a differential stage?
  137. Tube ID and suggestions
  138. 6L6 to EL34 conversion
  139. my saturation test ??
  140. DO-35 diode inside vacuum tube ?
  141. Transformer Polarity
  142. Modular Gain Stages for Tube Guitar Amp
  143. Where to go for tube gear in Hong Kong?
  144. EL84 Shunt reg for pre-amp, 85A1?
  145. Tube Preamp Idea
  146. UTC Linear Standard High Level matching transformers
  147. Manley Compact 160w noise problem -please help
  148. D3a Experimenters Breadboard Project
  149. Dtmm
  150. Running Single Ended 6V6 in Triode Mode
  151. 6v6pp Finished
  152. Stereo Buffer with a single twin triode
  153. Marshall volume drop off help
  154. Anybody recognize this pentode?
  155. Original schemes of amplifiers for 45 tubes of 1920 and 1930 years?
  156. My new amplifier£_300BSE!
  157. low zout vs output transfo
  158. can't find valve art tube - and glowey tube pic
  159. Which Phono Pre???
  160. EICO HF-20 Guitar Amp Convert
  161. BB 1702 DAC + transformer I/V ?
  162. aikido build thread-
  163. Triode Connected 6BK5
  164. need help in building tube amplifier 10 watter
  165. Parasitic oscillations in general
  166. Help Russian tube experts.
  167. forced aircooling
  168. Dirty Cheap Vintage Pot Fix - Your Opinion Please
  169. ask jan first
  170. running 6S4S/6C4C hot .. calling widowmaker
  171. An Odd Duck -- Gibson BR-6f Guitar Amp
  172. Covi Mark II OTL Help
  173. Volume pot between triodes?
  174. Series Pass Transistor for TL-783
  175. Anyone else have the new Mullard EL34's?
  176. VR tubes in single ended circuits
  177. Transformer for Tube Amps?
  178. "Magga Amp Workshop" builds again (Simple 45 Project)
  179. How to handle Reclaimed Transformers
  180. Dual supply...
  181. How much would this cost/how complicated would this be...
  182. low cost DHT hum pots vendors?
  183. Tube Buffer – question?
  184. Bogen CHB 10A questions
  185. 12B4 Preamp
  186. adding output tubes etc to pre amp
  187. primaluna dialogue 5 and fanboys?
  188. yaqin mc-100b
  189. KT88 in place of 6550?
  190. Tube manaul data sheets
  191. Need a bias supply how??
  192. Wouldn't you just love to have these!. United Electronics 211's
  193. Using single tube of Dual
  194. 21st century tube? Non-Vacuum
  195. making two minibloks for stereo
  196. Lynn Olson Raven Question
  197. Inrush current limiting heater filaments
  198. Tube amp with "meter"?
  199. lytics and choke AFTER regulator
  200. Boosing the power of your existing amp.
  201. Component ID from a 50EH5 Amp
  202. Music Angel KT88 Bridged /Bias problem
  203. Output of preamp drops when overdriven
  204. Choke load calculation...
  205. 807 SE amp schematic
  206. DC Heater Voltage
  207. Choke loading vs. SRPP
  208. Unloaded Power Transformer Current Draw/Janus-Aikido snipet
  209. Need help with tubed output for PCM1793 DAC
  210. Single ended transformer grounding question
  211. Reforming Caps with Variac
  212. First Shot at a 41 SE amp
  213. [Question] Ground Error?
  214. TOMIKO OPT-SE, any good?
  215. 6550 Williamson - Low Bass Response...
  216. Preamp design question
  217. Reading Oscilloscope Traces -For Dummies
  218. Power Supply Question
  219. PI Question Guitar Amp Related
  220. Altec 1568A modifications for comments and help…. again
  221. H & K Tube 20 unruly gain
  222. Electro-Harmonix interview
  223. Using LED bias for 4.5 mA cathode current, is it a good idea?
  224. amp dead?
  225. 7189 vs EL84 +458v plate
  226. What does your Aikido drive?
  227. Help with Decware SE84 Kit!
  228. Hybrid Amplifier in Small cases
  229. audio mixer with tubes?
  230. Epiphone Galaxy 25 transformer problem
  231. Help with KT88 biasing
  232. Bad Schottky??
  233. Aikido Diagnostic
  234. Could this become a Baby Huey killer ?
  235. SV83 vs EL84
  236. KT88 PP-5 Monoblock Amplifier
  237. RE604 SET amp
  238. Dropping rectifier filament voltage
  239. need suggestion about MC pre-pre
  240. New gain stage .. Opinions???
  241. Using SS to augment < 100Hz?
  242. A help with an soviet transformer.
  243. I thought that I had seen everything
  244. Triatic PP-amp with 6p14p
  245. Single 6N6P stereo pre-amp
  246. Tubelab SE input tube filament
  247. high frequency oscillation and decoupling question
  248. Long tailed pair schematic questions
  249. CCS Kit options
  250. Variac Question for Thatch_Ear

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