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  1. 45 amp with 6N7
  2. Selecting 5881's question
  3. Schematic with ECC88
  4. PP Output Transformers
  5. Gas Tube Question (CK1006 Rectifier)
  6. Art Audio Quintet MK1 EL34 PP resistor value
  7. The Midlife Crisis - My 833C Amp Build
  8. Tube amp Building Compitition Interest check
  9. Found myself a Magnavox 9302-00
  10. DIY Stereo Amp 15-50wpc
  11. Gray Research AM-50
  12. Preamp Grounding and Hum
  13. What to do with AA-100 output iron
  14. Flat screen t.v. and tube amps?
  15. 12AX7 Plate Current vs. HT Voltage
  16. Need help with Phono preamp build with microcontroller relay switching
  17. CCS fixed bias
  18. Gerber file help!!!!!!!
  19. Finally real inductance of a grid resistor...
  20. 12B4 vs. 12B4A
  21. Simple hybrid amplifier
  22. VTL Stereo 50
  23. Distributed volume pot
  24. DHT fixed bias schematic
  25. Wiring a power transformer
  26. What can I do with these tubes?
  27. RCA SP-20 circuit question.
  28. Magnavox Model 1ST525A
  29. LD91 signature power transformer wires Help?
  30. Effect of Regulated DC Filament Supply
  31. D3a-300b amp help!
  32. Need Schematic for this GE Console fast.
  33. Sound experiences 6SN7
  34. EL152 maximum operating settings?
  35. OMG just scored a huge lot of Nos/Nib tube lot for $20
  36. Help with DN2540 CCS design
  37. Strange problem with Caps not blocking DC
  38. Help and suggestions for My Phono and pre amp
  39. PCB and transformer placing and shielding
  40. MC-40 bias current?
  41. Gyrator on ccs-tailed LTP?
  42. capacitor polarity on a VM 20050 amp
  43. Choke? Where to begin?
  44. H11F1 Switching in tube circuits
  45. cooling traditional E-core iron transformers
  46. New vacuum-tube preamp-project!
  47. NABU TuneLabSE Buildup
  48. I just inherited a TON of tubes and tube amp components.
  49. Filament Transformer Question ?
  50. Low gain in Heathkit SA-2 phonostage
  51. speakers for leak tl12+
  52. LM3875 + Broskie Cathode Follower. (PICS)
  53. Has anyone built Andrea Ciuffolis Phono End ?
  54. tube substitute
  55. Motorcapacitors in high volt. power supplies?
  56. Troughline, Stereo 20, Technics 1200.Unhappy!
  57. Troughline, Stereo 20, Technics 1200.Unhappy!
  58. Volume potentiometer: the best way to do it...
  59. KT120 "triode" and Hammond 1650N
  60. Tubecad SE Amp Cad
  61. 5702wb
  62. Does anyone know of a company that makes circular risers for tubes?
  63. Negative feedback to differential pair driver
  64. 6L6 UL Power
  65. Bench Power Supply: What to look for ? Which one to get ?
  66. Bevois Valley EL84 PP - distortion in one channel
  67. good by til next winter
  68. PSUD Questions
  69. Power Transformer Wiring Question ?
  70. Fisher 500C C82/C84 ceramic capacitor function
  71. Tubes to first taker
  72. Neutral wired to chassis, how to add a 3-prong cord?
  73. Heater Transformer - too much voltage
  74. Capacitor value
  75. WD KT88
  76. Ultimate spud amp - any ideas ?
  77. Please Critique My Grounding Scheme
  78. negative voltage drop across a diode
  79. 1.5K 200W output transformers? What tubes?
  80. 50 Type Tube
  81. "12SR7 Starving Student" plays extremly quiet
  82. questions about some sim software
  83. Drive
  84. 4xKT88 into Hammond 1650T, what am I missing?
  85. double mono SE
  86. Two electrolytic cap selection questions
  87. Could This Be the Future of Vacuum Tubes?
  88. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  89. Rydel's triode model coefficients
  90. 2E26 Options
  91. Loud Popping Dynaco ST-70
  92. Are these EL34's good?
  93. Amp schematic for Sovtek/Svetlana tubes
  94. KT66 power tube amplifier
  95. 6П3С Plate Voltage
  96. Help choosing which Amplifier to build
  97. need help choosing between two amp schems
  98. 100 W-class Circlotron
  99. How can i match power tubes for Transconductance ?
  100. ef89 ef86
  101. ecc82 5687 preamp! audionote
  102. Hammond transformer questions
  103. IXYS CP20M45 IXC - anyone come across them ?
  104. Good Source for Nice Analog Panel Ammeters for 833C Build?
  105. Restore or build from new?
  106. Bob Danielak 826 Amp?
  107. Newbie Tube Power Supply
  108. What shall I build/do with this lot of tubes?
  109. Gingertubes ecl86 amp build
  110. DC restorer
  111. ECF801 Triode/Pentode any useful application ?
  112. Baking Tubes Procedure - Help...
  113. ECC82 normal vs ECC82 long plate
  114. 45 Type Push/Pull Amps
  115. leak tl12+
  116. Triode for 60V
  117. Tube Sound Processor
  118. McIntosh MC-275 buy or build an auto-bias tube amp?
  119. slp-90 clone, decent preamp!
  120. Triode St70 with hum
  121. SSR switching HT transformer?
  122. Tube Flash Drive
  123. 6S31B-P Grid current
  124. Tube Op Amp Building Blocks
  125. knight kb-85 restoration/mod
  126. Acceptable Power Supply Noise Limits?
  127. Loadlines and Microsoft Paint
  128. aikido noval all in one caps upgrade
  129. Specific grid stopper question
  130. GU50 Screen Driven, DC Coupled
  131. April fool?
  132. Providing both balanced and unbalanced inputs
  133. Best triode section inside ecc81 tube?
  134. opt for 45 tube
  135. Designing an Interstage Transformer
  136. Tube Amplifier Builder's Competition
  137. testing tubes for shorts
  138. Tube kits
  139. GU29 PP Amplifier
  140. 1625 tube radio?
  141. Measuring volts on an unloaded PSU secondary
  142. Suggest a preamp project for me.
  143. Audio Magazine
  144. Jadis DA88S schematic
  145. clone jadis jp200 preamp
  146. GROMMES LJ5
  147. Altec 1570B Feedback
  148. rebuilding 3tube zenith amp
  149. Effect of lower G2, EL84 PP
  150. Phono connection for pioneer sx34b
  151. Low output from two 6L6's for no apparent reason?
  152. Preamp design ok?
  153. GZ34 base?
  154. Tube Technology Genesis 100w monoblock manual?
  155. 6SN7 & 6V6 Push Pull - increase gain
  156. screen grid resistor value
  157. KT88 design questions
  158. el84/12ax7 se schematic needed!
  159. Broken AMC CVT 2100
  160. 98dB speaker - El Cheapo
  161. consolidated raw tube data
  162. Loadlines for Parallel SE outputs
  163. What is the correct load for an 845 triode?
  164. Rauland W-835A amplifier, choke field coil output?
  165. First use for Trancendent Sound Tube Analyzer
  166. Schematics/vintage
  167. APPJ PA0901A / Miniwatt N3 schematics
  168. APPJ PA0901A() schematics
  169. Help Needed: Lower Gain on a Tube Amp?
  170. Mullard ecc82 12au7 code help
  171. Wondering if I can use this XFMR to power two NYD 6SN7 1 bottle pres
  172. ST-70 Power Transformer
  173. Help Identifying a Tube - Westinghouse 12AX7A
  174. An incredible collection!
  175. Using only half of a stereo PP amp
  176. Low voltage vs. High Voltage Preamp.
  177. 6J6 Headphone hybrid amplifer?
  178. Hybrid headphone amp.....
  179. Please help with hum problem..
  180. Dead Audio Innovations Series 500
  181. Problems with E88CC / 6922 drawing grid current on power-up
  182. H.J.Leak TL12 "point one"
  183. Tubecad hybrird feedforward feedback shunt regulator
  184. 6v6 SE kit - any good?
  185. DBX 576 complete upgrade. Advices?
  186. help !! 45 tube
  187. 6P45S PP, simulation frustration.
  188. AMC CVT 3030 one more try - or dumpster
  189. Help for 211 HV PSU with damper diodes
  190. Flexible supply idea
  191. Equalizer on EL84 project
  192. parallel single-ended 12W6
  193. help improving/refurb a Fisher k-10 Tube spring reverb
  194. S.E.X. amp + Impedance switch build problems.
  195. problem with speaker
  196. EC80 as preamp tube.
  197. 6CJ3 Rectifier Connection Question ?
  198. AC Filament Voltage Question ?
  199. My new GU50 SE (all pentode)
  200. Ming Da MC-3R Schematics
  201. 12B4 PSE build thread
  202. Looking for options for 4 volt heater
  203. Help me,Art Audio Concerto
  204. heathkit t3 12sh7 tube
  205. PSU dimensioning for pre-amp
  206. Williamson preamp identification help wanted
  207. Adequate switch for UL-triode-pentode
  208. pl500 based integrated OTL amplifier
  209. Capacitor dielectric - high impedance headphones
  210. REQUEST FOR OPINIONS
  211. Mysterious LCR phono preamp
  212. Eimac 100TL Output Transformers and Bias Point ?
  213. Tube deterioration
  214. Heathkit XO-1 power cords
  215. EF86 Push-Pull "power"-amp
  216. Transformers!?
  217. Weird ground loop problem
  218. Re-caping Cayin A70-T
  219. A3 attenuator help for an Aikido line amp
  220. Driver Tube Power Supply Question ?
  221. Line Stage vs. Phase Inverter - 12A*7
  222. Intermittent Buzz Decware Zen SE84Bged
  223. Tamura F2011/el34 x 4
  224. E88CC/6922 battery supply
  225. Aikido 9-pin all-in-1 headphone amp problem
  226. Filament Transformer Question ?
  227. Load Resistance, etc., chart for Class A push pull 6L6s?
  228. Question about preamp, boost and line-stage
  229. help please
  230. Practical phase inverter article
  231. Tube vs. Jfet Preamp for Dynaco ST-35 tube power amp
  232. Rio W-41 no sound
  233. Help: TDA1541A DAC Output To Tube Gainstage
  234. Pieter's take on an all DHT headphone amplifier.
  235. toroidal chokes
  236. Truly Silly Transformer Question
  237. Elementary resistance question
  238. Russian 310A + 300B
  239. 1959 RCA tube amplifier needs help
  240. What's going on?
  241. Aikido 9-pin All-in-one Testing question
  242. Gyrator in Tail of LTP
  243. tubemaster EL84
  244. Silly transformer question
  245. Marant 8b bias meter
  246. Opera Consonance resitor question ?
  247. ADI's Double Dyna
  248. DuMont Stereo Tube Console late 50's - What to do?
  249. No Sound from Magnavox EL 1484-1 amp/phono
  250. Elevated Heater Question

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