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  1. EZ150
  2. Need help identifying baldwin tube amp
  3. 45 amp with 6N7
  4. Selecting 5881's question
  5. Schematic with ECC88
  6. PP Output Transformers
  7. Gas Tube Question (CK1006 Rectifier)
  8. Art Audio Quintet MK1 EL34 PP resistor value
  9. The Midlife Crisis - My 833C Amp Build
  10. Tube amp Building Compitition Interest check
  11. Found myself a Magnavox 9302-00
  12. DIY Stereo Amp 15-50wpc
  13. Gray Research AM-50
  14. Preamp Grounding and Hum
  15. What to do with AA-100 output iron
  16. Flat screen t.v. and tube amps?
  17. 12AX7 Plate Current vs. HT Voltage
  18. Hammond A0-29 project organ amp
  19. Need help with Phono preamp build with microcontroller relay switching
  20. CCS fixed bias
  21. Gerber file help!!!!!!!
  22. Finally real inductance of a grid resistor...
  23. 12B4 vs. 12B4A
  24. Simple hybrid amplifier
  25. VTL Stereo 50
  26. Distributed volume pot
  27. DHT fixed bias schematic
  28. Wiring a power transformer
  29. What can I do with these tubes?
  30. RCA SP-20 circuit question.
  31. Magnavox Model 1ST525A
  32. LD91 signature power transformer wires Help?
  33. Effect of Regulated DC Filament Supply
  34. D3a-300b amp help!
  35. Need Schematic for this GE Console fast.
  36. Sound experiences 6SN7
  37. EL152 maximum operating settings?
  38. OMG just scored a huge lot of Nos/Nib tube lot for $20
  39. Help with DN2540 CCS design
  40. Strange problem with Caps not blocking DC
  41. Help and suggestions for My Phono and pre amp
  42. PCB and transformer placing and shielding
  43. MC-40 bias current?
  44. Gyrator on ccs-tailed LTP?
  45. capacitor polarity on a VM 20050 amp
  46. Choke? Where to begin?
  47. H11F1 Switching in tube circuits
  48. cooling traditional E-core iron transformers
  49. New vacuum-tube preamp-project!
  50. DIY tube tester
  51. NABU TuneLabSE Buildup
  52. I just inherited a TON of tubes and tube amp components.
  53. Filament Transformer Question ?
  54. Low gain in Heathkit SA-2 phonostage
  55. speakers for leak tl12+
  56. LM3875 + Broskie Cathode Follower. (PICS)
  57. Has anyone built Andrea Ciuffolis Phono End ?
  58. tube substitute
  59. Motorcapacitors in high volt. power supplies?
  60. Troughline, Stereo 20, Technics 1200.Unhappy!
  61. Troughline, Stereo 20, Technics 1200.Unhappy!
  62. Volume potentiometer: the best way to do it...
  63. KT120 "triode" and Hammond 1650N
  64. Tubecad SE Amp Cad
  65. 5702wb
  66. Does anyone know of a company that makes circular risers for tubes?
  67. Negative feedback to differential pair driver
  68. effects send and/or preamp out jack on guitar amps
  69. 6L6 UL Power
  70. Bench Power Supply: What to look for ? Which one to get ?
  71. Bevois Valley EL84 PP - distortion in one channel
  72. good by til next winter
  73. PSUD Questions
  74. Power Transformer Wiring Question ?
  75. Fisher 500C C82/C84 ceramic capacitor function
  76. Tubes to first taker
  77. Neutral wired to chassis, how to add a 3-prong cord?
  78. Heater Transformer - too much voltage
  79. Capacitor value
  80. WD KT88
  81. Ultimate spud amp - any ideas ?
  82. Please Critique My Grounding Scheme
  83. negative voltage drop across a diode
  84. 1.5K 200W output transformers? What tubes?
  85. 50 Type Tube
  86. "12SR7 Starving Student" plays extremly quiet
  87. questions about some sim software
  88. Drive
  89. 4xKT88 into Hammond 1650T, what am I missing?
  90. double mono SE
  91. Two electrolytic cap selection questions
  92. Could This Be the Future of Vacuum Tubes?
  93. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  94. Rydel's triode model coefficients
  95. 2E26 Options
  96. Loud Popping Dynaco ST-70
  97. Are these EL34's good?
  98. Amp schematic for Sovtek/Svetlana tubes
  99. KT66 power tube amplifier
  100. 6П3С Plate Voltage
  101. Help choosing which Amplifier to build
  102. need help choosing between two amp schems
  103. 100 W-class Circlotron
  104. How can i match power tubes for Transconductance ?
  105. ef89 ef86
  106. ecc82 5687 preamp! audionote
  107. Hammond transformer questions
  108. IXYS CP20M45 IXC - anyone come across them ?
  109. Good Source for Nice Analog Panel Ammeters for 833C Build?
  110. Restore or build from new?
  111. Bob Danielak 826 Amp?
  112. Newbie Tube Power Supply
  113. What shall I build/do with this lot of tubes?
  114. Gingertubes ecl86 amp build
  115. DC restorer
  116. ECF801 Triode/Pentode any useful application ?
  117. Baking Tubes Procedure - Help...
  118. AVO VCM-163 Tube tester problem
  119. ECC82 normal vs ECC82 long plate
  120. 45 Type Push/Pull Amps
  121. leak tl12+
  122. Triode for 60V
  123. Tube Sound Processor
  124. McIntosh MC-275 buy or build an auto-bias tube amp?
  125. slp-90 clone, decent preamp!
  126. Triode St70 with hum
  127. SSR switching HT transformer?
  128. Tube Flash Drive
  129. 6S31B-P Grid current
  130. Tube Op Amp Building Blocks
  131. knight kb-85 restoration/mod
  132. Acceptable Power Supply Noise Limits?
  133. Loadlines and Microsoft Paint
  134. aikido noval all in one caps upgrade
  135. Specific grid stopper question
  136. GU50 Screen Driven, DC Coupled
  137. April fool?
  138. Providing both balanced and unbalanced inputs
  139. Best triode section inside ecc81 tube?
  140. opt for 45 tube
  141. Designing an Interstage Transformer
  142. Tube Amplifier Builder's Competition
  143. testing tubes for shorts
  144. Tube kits
  145. GU29 PP Amplifier
  146. 1625 tube radio?
  147. Measuring volts on an unloaded PSU secondary
  148. Suggest a preamp project for me.
  149. Audio Magazine
  150. Jadis DA88S schematic
  151. clone jadis jp200 preamp
  152. GROMMES LJ5
  153. Altec 1570B Feedback
  154. rebuilding 3tube zenith amp
  155. Effect of lower G2, EL84 PP
  156. Phono connection for pioneer sx34b
  157. Low output from two 6L6's for no apparent reason?
  158. Preamp design ok?
  159. GZ34 base?
  160. Tube Technology Genesis 100w monoblock manual?
  161. 6SN7 & 6V6 Push Pull - increase gain
  162. screen grid resistor value
  163. KT88 design questions
  164. el84/12ax7 se schematic needed!
  165. Broken AMC CVT 2100
  166. 98dB speaker - El Cheapo
  167. consolidated raw tube data
  168. Loadlines for Parallel SE outputs
  169. What is the correct load for an 845 triode?
  170. Rauland W-835A amplifier, choke field coil output?
  171. First use for Trancendent Sound Tube Analyzer
  172. Schematics/vintage
  173. APPJ PA0901A / Miniwatt N3 schematics
  174. APPJ PA0901A() schematics
  175. Help Needed: Lower Gain on a Tube Amp?
  176. Help: Hickok Western Electric KS-15750 Calibration
  177. Mullard ecc82 12au7 code help
  178. Wondering if I can use this XFMR to power two NYD 6SN7 1 bottle pres
  179. ST-70 Power Transformer
  180. Help Identifying a Tube - Westinghouse 12AX7A
  181. An incredible collection!
  182. Using only half of a stereo PP amp
  183. Alternate Electrolytic Caps for SimpleSE (and others)
  184. Low voltage vs. High Voltage Preamp.
  185. 6J6 Headphone hybrid amplifer?
  186. Hybrid headphone amp.....
  187. Please help with hum problem..
  188. Dead Audio Innovations Series 500
  189. Problems with E88CC / 6922 drawing grid current on power-up
  190. H.J.Leak TL12 "point one"
  191. Tubecad hybrird feedforward feedback shunt regulator
  192. 6v6 SE kit - any good?
  193. DBX 576 complete upgrade. Advices?
  194. help !! 45 tube
  195. 6P45S PP, simulation frustration.
  196. AMC CVT 3030 one more try - or dumpster
  197. Help for 211 HV PSU with damper diodes
  198. Flexible supply idea
  199. what range speaker used 2x 18watt or 2x 10 watt on 18 watts amp
  200. Equalizer on EL84 project
  201. parallel single-ended 12W6
  202. help improving/refurb a Fisher k-10 Tube spring reverb
  203. S.E.X. amp + Impedance switch build problems.
  204. problem with speaker
  205. EC80 as preamp tube.
  206. 6CJ3 Rectifier Connection Question ?
  207. AC Filament Voltage Question ?
  208. My new GU50 SE (all pentode)
  209. Ming Da MC-3R Schematics
  210. 12B4 PSE build thread
  211. Looking for options for 4 volt heater
  212. Help me,Art Audio Concerto
  213. heathkit t3 12sh7 tube
  214. PSU dimensioning for pre-amp
  215. Old ceramic dogbone capacitor color codes
  216. Williamson preamp identification help wanted
  217. Adequate switch for UL-triode-pentode
  218. pl500 based integrated OTL amplifier
  219. Capacitor dielectric - high impedance headphones
  220. REQUEST FOR OPINIONS
  221. Mysterious LCR phono preamp
  222. Eimac 100TL Output Transformers and Bias Point ?
  223. Tube deterioration
  224. Heathkit XO-1 power cords
  225. EF86 Push-Pull "power"-amp
  226. Transformers!?
  227. Weird ground loop problem
  228. Re-caping Cayin A70-T
  229. A3 attenuator help for an Aikido line amp
  230. Driver Tube Power Supply Question ?
  231. Line Stage vs. Phase Inverter - 12A*7
  232. Intermittent Buzz Decware Zen SE84Bged
  233. Tamura F2011/el34 x 4
  234. E88CC/6922 battery supply
  235. Aikido 9-pin all-in-1 headphone amp problem
  236. Filament Transformer Question ?
  237. Load Resistance, etc., chart for Class A push pull 6L6s?
  238. Question about preamp, boost and line-stage
  239. help please
  240. Practical phase inverter article
  241. Tube vs. Jfet Preamp for Dynaco ST-35 tube power amp
  242. Rio W-41 no sound
  243. Help: TDA1541A DAC Output To Tube Gainstage
  244. Pieter's take on an all DHT headphone amplifier.
  245. toroidal chokes
  246. Truly Silly Transformer Question
  247. Elementary resistance question
  248. Russian 310A + 300B
  249. 1959 RCA tube amplifier needs help
  250. What's going on?

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