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  1. ECC81 mu-follower problem
  2. Audio Note M7 line stage preaamp!
  3. Should I upgrade considering.....
  4. Using Wards SE EL84 Transformers for Decware Zenkit1
  5. Parts Box 300b
  6. TO-9105-1 Triodeelectronics output transformer
  7. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  8. What is your comment about akido linestage?
  9. Driving an EL34 amp without driver stage ?
  10. Mystery Telefunken T9 amp
  11. Improving preamp's bass response.
  12. EZ150
  13. Need help identifying baldwin tube amp
  14. 45 amp with 6N7
  15. Selecting 5881's question
  16. Schematic with ECC88
  17. PP Output Transformers
  18. Gas Tube Question (CK1006 Rectifier)
  19. Art Audio Quintet MK1 EL34 PP resistor value
  20. The Midlife Crisis - My 833C Amp Build
  21. Tube amp Building Compitition Interest check
  22. Found myself a Magnavox 9302-00
  23. DIY Stereo Amp 15-50wpc
  24. Gray Research AM-50
  25. Preamp Grounding and Hum
  26. What to do with AA-100 output iron
  27. Flat screen t.v. and tube amps?
  28. 12AX7 Plate Current vs. HT Voltage
  29. Hammond A0-29 project organ amp
  30. Need help with Phono preamp build with microcontroller relay switching
  31. CCS fixed bias
  32. Gerber file help!!!!!!!
  33. Finally real inductance of a grid resistor...
  34. 12B4 vs. 12B4A
  35. Simple hybrid amplifier
  36. VTL Stereo 50
  37. Distributed volume pot
  38. DHT fixed bias schematic
  39. Wiring a power transformer
  40. What can I do with these tubes?
  41. RCA SP-20 circuit question.
  42. Magnavox Model 1ST525A
  43. LD91 signature power transformer wires Help?
  44. Effect of Regulated DC Filament Supply
  45. D3a-300b amp help!
  46. Need Schematic for this GE Console fast.
  47. Sound experiences 6SN7
  48. EL152 maximum operating settings?
  49. OMG just scored a huge lot of Nos/Nib tube lot for $20
  50. Help with DN2540 CCS design
  51. Strange problem with Caps not blocking DC
  52. Help and suggestions for My Phono and pre amp
  53. PCB and transformer placing and shielding
  54. MC-40 bias current?
  55. Gyrator on ccs-tailed LTP?
  56. capacitor polarity on a VM 20050 amp
  57. Choke? Where to begin?
  58. H11F1 Switching in tube circuits
  59. cooling traditional E-core iron transformers
  60. New vacuum-tube preamp-project!
  61. DIY tube tester
  62. NABU TuneLabSE Buildup
  63. I just inherited a TON of tubes and tube amp components.
  64. Filament Transformer Question ?
  65. Low gain in Heathkit SA-2 phonostage
  66. speakers for leak tl12+
  67. LM3875 + Broskie Cathode Follower. (PICS)
  68. Has anyone built Andrea Ciuffolis Phono End ?
  69. tube substitute
  70. Motorcapacitors in high volt. power supplies?
  71. Troughline, Stereo 20, Technics 1200.Unhappy!
  72. Troughline, Stereo 20, Technics 1200.Unhappy!
  73. Volume potentiometer: the best way to do it...
  74. KT120 "triode" and Hammond 1650N
  75. Tubecad SE Amp Cad
  76. 5702wb
  77. Does anyone know of a company that makes circular risers for tubes?
  78. Negative feedback to differential pair driver
  79. 6L6 UL Power
  80. Bench Power Supply: What to look for ? Which one to get ?
  81. Bevois Valley EL84 PP - distortion in one channel
  82. good by til next winter
  83. PSUD Questions
  84. Power Transformer Wiring Question ?
  85. Fisher 500C C82/C84 ceramic capacitor function
  86. Tubes to first taker
  87. Neutral wired to chassis, how to add a 3-prong cord?
  88. Heater Transformer - too much voltage
  89. Capacitor value
  90. WD KT88
  91. Ultimate spud amp - any ideas ?
  92. Please Critique My Grounding Scheme
  93. negative voltage drop across a diode
  94. 1.5K 200W output transformers? What tubes?
  95. 50 Type Tube
  96. "12SR7 Starving Student" plays extremly quiet
  97. questions about some sim software
  98. Drive
  99. 4xKT88 into Hammond 1650T, what am I missing?
  100. double mono SE
  101. Two electrolytic cap selection questions
  102. Could This Be the Future of Vacuum Tubes?
  103. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  104. Rydel's triode model coefficients
  105. 2E26 Options
  106. Loud Popping Dynaco ST-70
  107. Are these EL34's good?
  108. Amp schematic for Sovtek/Svetlana tubes
  109. KT66 power tube amplifier
  110. 6П3С Plate Voltage
  111. Help choosing which Amplifier to build
  112. need help choosing between two amp schems
  113. 100 W-class Circlotron
  114. How can i match power tubes for Transconductance ?
  115. ef89 ef86
  116. ecc82 5687 preamp! audionote
  117. Hammond transformer questions
  118. IXYS CP20M45 IXC - anyone come across them ?
  119. Good Source for Nice Analog Panel Ammeters for 833C Build?
  120. Restore or build from new?
  121. Bob Danielak 826 Amp?
  122. Newbie Tube Power Supply
  123. What shall I build/do with this lot of tubes?
  124. Gingertubes ecl86 amp build
  125. DC restorer
  126. ECF801 Triode/Pentode any useful application ?
  127. Baking Tubes Procedure - Help...
  128. AVO VCM-163 Tube tester problem
  129. ECC82 normal vs ECC82 long plate
  130. 45 Type Push/Pull Amps
  131. leak tl12+
  132. Triode for 60V
  133. Tube Sound Processor
  134. McIntosh MC-275 buy or build an auto-bias tube amp?
  135. slp-90 clone, decent preamp!
  136. Triode St70 with hum
  137. SSR switching HT transformer?
  138. Tube Flash Drive
  139. 6S31B-P Grid current
  140. Tube Op Amp Building Blocks
  141. knight kb-85 restoration/mod
  142. Acceptable Power Supply Noise Limits?
  143. Loadlines and Microsoft Paint
  144. aikido noval all in one caps upgrade
  145. Specific grid stopper question
  146. GU50 Screen Driven, DC Coupled
  147. April fool?
  148. Providing both balanced and unbalanced inputs
  149. Best triode section inside ecc81 tube?
  150. opt for 45 tube
  151. Designing an Interstage Transformer
  152. Tube Amplifier Builder's Competition
  153. testing tubes for shorts
  154. Tube kits
  155. GU29 PP Amplifier
  156. 1625 tube radio?
  157. Measuring volts on an unloaded PSU secondary
  158. Suggest a preamp project for me.
  159. Audio Magazine
  160. Jadis DA88S schematic
  161. clone jadis jp200 preamp
  162. GROMMES LJ5
  163. Altec 1570B Feedback
  164. rebuilding 3tube zenith amp
  165. Effect of lower G2, EL84 PP
  166. Phono connection for pioneer sx34b
  167. Low output from two 6L6's for no apparent reason?
  168. Preamp design ok?
  169. GZ34 base?
  170. Tube Technology Genesis 100w monoblock manual?
  171. 6SN7 & 6V6 Push Pull - increase gain
  172. screen grid resistor value
  173. KT88 design questions
  174. el84/12ax7 se schematic needed!
  175. Broken AMC CVT 2100
  176. 98dB speaker - El Cheapo
  177. consolidated raw tube data
  178. Loadlines for Parallel SE outputs
  179. What is the correct load for an 845 triode?
  180. Rauland W-835A amplifier, choke field coil output?
  181. First use for Trancendent Sound Tube Analyzer
  182. Schematics/vintage
  183. APPJ PA0901A / Miniwatt N3 schematics
  184. APPJ PA0901A() schematics
  185. Help Needed: Lower Gain on a Tube Amp?
  186. Help: Hickok Western Electric KS-15750 Calibration
  187. Mullard ecc82 12au7 code help
  188. Wondering if I can use this XFMR to power two NYD 6SN7 1 bottle pres
  189. ST-70 Power Transformer
  190. Help Identifying a Tube - Westinghouse 12AX7A
  191. An incredible collection!
  192. Using only half of a stereo PP amp
  193. Alternate Electrolytic Caps for SimpleSE (and others)
  194. Low voltage vs. High Voltage Preamp.
  195. 6J6 Headphone hybrid amplifer?
  196. Hybrid headphone amp.....
  197. Please help with hum problem..
  198. Dead Audio Innovations Series 500
  199. Problems with E88CC / 6922 drawing grid current on power-up
  200. H.J.Leak TL12 "point one"
  201. Tubecad hybrird feedforward feedback shunt regulator
  202. 6v6 SE kit - any good?
  203. DBX 576 complete upgrade. Advices?
  204. help !! 45 tube
  205. 6P45S PP, simulation frustration.
  206. AMC CVT 3030 one more try - or dumpster
  207. Help for 211 HV PSU with damper diodes
  208. Flexible supply idea
  209. Equalizer on EL84 project
  210. parallel single-ended 12W6
  211. help improving/refurb a Fisher k-10 Tube spring reverb
  212. S.E.X. amp + Impedance switch build problems.
  213. problem with speaker
  214. EC80 as preamp tube.
  215. 6CJ3 Rectifier Connection Question ?
  216. AC Filament Voltage Question ?
  217. My new GU50 SE (all pentode)
  218. Ming Da MC-3R Schematics
  219. 12B4 PSE build thread
  220. Looking for options for 4 volt heater
  221. Help me,Art Audio Concerto
  222. heathkit t3 12sh7 tube
  223. PSU dimensioning for pre-amp
  224. Old ceramic dogbone capacitor color codes
  225. Williamson preamp identification help wanted
  226. Adequate switch for UL-triode-pentode
  227. pl500 based integrated OTL amplifier
  228. Capacitor dielectric - high impedance headphones
  229. REQUEST FOR OPINIONS
  230. Mysterious LCR phono preamp
  231. Eimac 100TL Output Transformers and Bias Point ?
  232. Tube deterioration
  233. Heathkit XO-1 power cords
  234. EF86 Push-Pull "power"-amp
  235. Transformers!?
  236. Weird ground loop problem
  237. Re-caping Cayin A70-T
  238. A3 attenuator help for an Aikido line amp
  239. Driver Tube Power Supply Question ?
  240. Line Stage vs. Phase Inverter - 12A*7
  241. Intermittent Buzz Decware Zen SE84Bged
  242. Tamura F2011/el34 x 4
  243. E88CC/6922 battery supply
  244. Aikido 9-pin all-in-1 headphone amp problem
  245. Filament Transformer Question ?
  246. Load Resistance, etc., chart for Class A push pull 6L6s?
  247. Question about preamp, boost and line-stage
  248. help please
  249. Practical phase inverter article
  250. Tube vs. Jfet Preamp for Dynaco ST-35 tube power amp

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