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  1. Filament Transformer Question ?
  2. Low gain in Heathkit SA-2 phonostage
  3. speakers for leak tl12+
  4. LM3875 + Broskie Cathode Follower. (PICS)
  5. Has anyone built Andrea Ciuffolis Phono End ?
  6. tube substitute
  7. Motorcapacitors in high volt. power supplies?
  8. Troughline, Stereo 20, Technics 1200.Unhappy!
  9. Troughline, Stereo 20, Technics 1200.Unhappy!
  10. Volume potentiometer: the best way to do it...
  11. KT120 "triode" and Hammond 1650N
  12. Tubecad SE Amp Cad
  13. 5702wb
  14. Does anyone know of a company that makes circular risers for tubes?
  15. Negative feedback to differential pair driver
  16. effects send and/or preamp out jack on guitar amps
  17. 6L6 UL Power
  18. Bench Power Supply: What to look for ? Which one to get ?
  19. Bevois Valley EL84 PP - distortion in one channel
  20. good by til next winter
  21. PSUD Questions
  22. Power Transformer Wiring Question ?
  23. Fisher 500C C82/C84 ceramic capacitor function
  24. Tubes to first taker
  25. Neutral wired to chassis, how to add a 3-prong cord?
  26. Heater Transformer - too much voltage
  27. Capacitor value
  28. WD KT88
  29. Ultimate spud amp - any ideas ?
  30. Please Critique My Grounding Scheme
  31. negative voltage drop across a diode
  32. 1.5K 200W output transformers? What tubes?
  33. 50 Type Tube
  34. "12SR7 Starving Student" plays extremly quiet
  35. questions about some sim software
  36. Drive
  37. 4xKT88 into Hammond 1650T, what am I missing?
  38. double mono SE
  39. Two electrolytic cap selection questions
  40. Could This Be the Future of Vacuum Tubes?
  41. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  42. Rydel's triode model coefficients
  43. 2E26 Options
  44. Loud Popping Dynaco ST-70
  45. Are these EL34's good?
  46. Amp schematic for Sovtek/Svetlana tubes
  47. KT66 power tube amplifier
  48. 6П3С Plate Voltage
  49. Help choosing which Amplifier to build
  50. need help choosing between two amp schems
  51. 100 W-class Circlotron
  52. How can i match power tubes for Transconductance ?
  53. ef89 ef86
  54. ecc82 5687 preamp! audionote
  55. Hammond transformer questions
  56. IXYS CP20M45 IXC - anyone come across them ?
  57. Good Source for Nice Analog Panel Ammeters for 833C Build?
  58. Restore or build from new?
  59. Bob Danielak 826 Amp?
  60. Newbie Tube Power Supply
  61. What shall I build/do with this lot of tubes?
  62. Gingertubes ecl86 amp build
  63. DC restorer
  64. ECF801 Triode/Pentode any useful application ?
  65. Baking Tubes Procedure - Help...
  66. AVO VCM-163 Tube tester problem
  67. ECC82 normal vs ECC82 long plate
  68. 45 Type Push/Pull Amps
  69. leak tl12+
  70. Triode for 60V
  71. Tube Sound Processor
  72. McIntosh MC-275 buy or build an auto-bias tube amp?
  73. slp-90 clone, decent preamp!
  74. Triode St70 with hum
  75. SSR switching HT transformer?
  76. Tube Flash Drive
  77. 6S31B-P Grid current
  78. Tube Op Amp Building Blocks
  79. knight kb-85 restoration/mod
  80. Acceptable Power Supply Noise Limits?
  81. Loadlines and Microsoft Paint
  82. aikido noval all in one caps upgrade
  83. Specific grid stopper question
  84. GU50 Screen Driven, DC Coupled
  85. April fool?
  86. Providing both balanced and unbalanced inputs
  87. Best triode section inside ecc81 tube?
  88. opt for 45 tube
  89. Designing an Interstage Transformer
  90. Tube Amplifier Builder's Competition
  91. testing tubes for shorts
  92. Tube kits
  93. GU29 PP Amplifier
  94. 1625 tube radio?
  95. Measuring volts on an unloaded PSU secondary
  96. Suggest a preamp project for me.
  97. Audio Magazine
  98. Jadis DA88S schematic
  99. clone jadis jp200 preamp
  100. GROMMES LJ5
  101. Altec 1570B Feedback
  102. rebuilding 3tube zenith amp
  103. Effect of lower G2, EL84 PP
  104. Phono connection for pioneer sx34b
  105. Low output from two 6L6's for no apparent reason?
  106. Preamp design ok?
  107. GZ34 base?
  108. Tube Technology Genesis 100w monoblock manual?
  109. 6SN7 & 6V6 Push Pull - increase gain
  110. screen grid resistor value
  111. KT88 design questions
  112. el84/12ax7 se schematic needed!
  113. Broken AMC CVT 2100
  114. 98dB speaker - El Cheapo
  115. consolidated raw tube data
  116. Loadlines for Parallel SE outputs
  117. What is the correct load for an 845 triode?
  118. Rauland W-835A amplifier, choke field coil output?
  119. First use for Trancendent Sound Tube Analyzer
  120. Schematics/vintage
  121. APPJ PA0901A / Miniwatt N3 schematics
  122. APPJ PA0901A() schematics
  123. Help Needed: Lower Gain on a Tube Amp?
  124. Help: Hickok Western Electric KS-15750 Calibration
  125. Mullard ecc82 12au7 code help
  126. Wondering if I can use this XFMR to power two NYD 6SN7 1 bottle pres
  127. ST-70 Power Transformer
  128. Help Identifying a Tube - Westinghouse 12AX7A
  129. An incredible collection!
  130. Using only half of a stereo PP amp
  131. Alternate Electrolytic Caps for SimpleSE (and others)
  132. Low voltage vs. High Voltage Preamp.
  133. 6J6 Headphone hybrid amplifer?
  134. Hybrid headphone amp.....
  135. Please help with hum problem..
  136. Dead Audio Innovations Series 500
  137. Problems with E88CC / 6922 drawing grid current on power-up
  138. H.J.Leak TL12 "point one"
  139. Tubecad hybrird feedforward feedback shunt regulator
  140. 6v6 SE kit - any good?
  141. DBX 576 complete upgrade. Advices?
  142. help !! 45 tube
  143. 6P45S PP, simulation frustration.
  144. AMC CVT 3030 one more try - or dumpster
  145. Help for 211 HV PSU with damper diodes
  146. Flexible supply idea
  147. what range speaker used 2x 18watt or 2x 10 watt on 18 watts amp
  148. Equalizer on EL84 project
  149. parallel single-ended 12W6
  150. help improving/refurb a Fisher k-10 Tube spring reverb
  151. S.E.X. amp + Impedance switch build problems.
  152. problem with speaker
  153. EC80 as preamp tube.
  154. 6CJ3 Rectifier Connection Question ?
  155. AC Filament Voltage Question ?
  156. My new GU50 SE (all pentode)
  157. Ming Da MC-3R Schematics
  158. 12B4 PSE build thread
  159. Looking for options for 4 volt heater
  160. Help me,Art Audio Concerto
  161. heathkit t3 12sh7 tube
  162. PSU dimensioning for pre-amp
  163. Old ceramic dogbone capacitor color codes
  164. Williamson preamp identification help wanted
  165. Adequate switch for UL-triode-pentode
  166. pl500 based integrated OTL amplifier
  167. Capacitor dielectric - high impedance headphones
  168. REQUEST FOR OPINIONS
  169. Mysterious LCR phono preamp
  170. Eimac 100TL Output Transformers and Bias Point ?
  171. Tube deterioration
  172. Heathkit XO-1 power cords
  173. EF86 Push-Pull "power"-amp
  174. Transformers!?
  175. Weird ground loop problem
  176. Re-caping Cayin A70-T
  177. A3 attenuator help for an Aikido line amp
  178. Driver Tube Power Supply Question ?
  179. Line Stage vs. Phase Inverter - 12A*7
  180. Intermittent Buzz Decware Zen SE84Bged
  181. Tamura F2011/el34 x 4
  182. E88CC/6922 battery supply
  183. Aikido 9-pin all-in-1 headphone amp problem
  184. Filament Transformer Question ?
  185. Load Resistance, etc., chart for Class A push pull 6L6s?
  186. Question about preamp, boost and line-stage
  187. help please
  188. Practical phase inverter article
  189. Tube vs. Jfet Preamp for Dynaco ST-35 tube power amp
  190. Rio W-41 no sound
  191. Help: TDA1541A DAC Output To Tube Gainstage
  192. Pieter's take on an all DHT headphone amplifier.
  193. toroidal chokes
  194. Truly Silly Transformer Question
  195. Elementary resistance question
  196. Russian 310A + 300B
  197. 1959 RCA tube amplifier needs help
  198. What's going on?
  199. Aikido 9-pin All-in-one Testing question
  200. Gyrator in Tail of LTP
  201. tubemaster EL84
  202. Silly transformer question
  203. Marant 8b bias meter
  204. ElectroTone OrganMate spring reverb - mod suggestions?
  205. Opera Consonance resitor question ?
  206. ADI's Double Dyna
  207. DuMont Stereo Tube Console late 50's - What to do?
  208. No Sound from Magnavox EL 1484-1 amp/phono
  209. Elevated Heater Question
  210. 6P45S/EL509 input capacitance in triode mode
  211. 6E6p-e Little Tiny Wire
  212. another aikido ?
  213. NOS 6P3S-e or cheap new 5881? Identify this tube..
  214. Contan Audio from Melbourne Aus, any info?
  215. Loctal Base Post
  216. Timber amp with solid copper plate as earth and ground plane
  217. Dynaco ST70 - Which tubes do you like?
  218. 6SL7 in parallel driving 6550
  219. Will this work as a heater for 300b?
  220. Tube grid resistance for 6P45S, fine?
  221. Akido help pls
  222. BEARD P101 information
  223. Got some 6n3c-e (6p3s-e)with blank bulb?
  224. Graaf GM-20
  225. medium power OTL circlotron amplifier
  226. Help me identity this amp
  227. Hajdinjak preamp + 2x mono tube amp -What to do?
  228. Moscode 600 Noisy Fan
  229. component reduction in signal chain
  230. Aikido with Stax
  231. 'High power' shunt regulator
  232. Help need on Xindak XA3200MII hybrid pre-amplifier
  233. ideas for tube burn in / bias match station
  234. KT120 triode operation single stage amp
  235. Question regarding 7199 Tube wiring
  236. Why do modern PP OPTs have 16 Ohm taps?
  237. 10M45 current source
  238. 12bh7 in place of ecc82
  239. High voltage winding no center tap?
  240. Marantz 8b recap
  241. Pair Quad II in all original condition... restore or sell
  242. Where to find tube designers for hire?
  243. 10M45S problem
  244. 300B Load Line and Bias?
  245. Looking for little help with Glassware Janus shunt reg
  246. Quick question about grounding
  247. Source for 6jg5 or equivalent in Europe
  248. Need your help: Change from el34 to 6550 ends in a desaster
  249. conn el 6026 tube amp schematic for hifi stereo
  250. GE 211 "flash" question

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