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  1. Real Telefunken E88CC?
  2. Any audio differences for EL-84 P-P OPT?
  3. Need help identifying this amplifier.
  4. Can anyone identify this valve / tube?
  5. Pentode-like Triodes
  6. Telefunken EL156 SE experience
  7. Help with a Tubelab SE Power Supply Transformer
  8. 33:1 opt for 5:1 use?
  9. Siemens B30C600 selenium bridge rectifier
  10. ECC81 mu-follower problem
  11. Audio Note M7 line stage preaamp!
  12. Should I upgrade considering.....
  13. Using Wards SE EL84 Transformers for Decware Zenkit1
  14. Parts Box 300b
  15. TO-9105-1 Triodeelectronics output transformer
  16. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  17. What is your comment about akido linestage?
  18. Driving an EL34 amp without driver stage ?
  19. Mystery Telefunken T9 amp
  20. Improving preamp's bass response.
  21. EZ150
  22. Need help identifying baldwin tube amp
  23. 45 amp with 6N7
  24. Selecting 5881's question
  25. Schematic with ECC88
  26. PP Output Transformers
  27. Gas Tube Question (CK1006 Rectifier)
  28. Art Audio Quintet MK1 EL34 PP resistor value
  29. The Midlife Crisis - My 833C Amp Build
  30. Tube amp Building Compitition Interest check
  31. Found myself a Magnavox 9302-00
  32. DIY Stereo Amp 15-50wpc
  33. Gray Research AM-50
  34. Preamp Grounding and Hum
  35. What to do with AA-100 output iron
  36. Flat screen t.v. and tube amps?
  37. 12AX7 Plate Current vs. HT Voltage
  38. Hammond A0-29 project organ amp
  39. Need help with Phono preamp build with microcontroller relay switching
  40. CCS fixed bias
  41. Gerber file help!!!!!!!
  42. Finally real inductance of a grid resistor...
  43. 12B4 vs. 12B4A
  44. Simple hybrid amplifier
  45. VTL Stereo 50
  46. Distributed volume pot
  47. DHT fixed bias schematic
  48. Wiring a power transformer
  49. What can I do with these tubes?
  50. RCA SP-20 circuit question.
  51. Magnavox Model 1ST525A
  52. LD91 signature power transformer wires Help?
  53. Effect of Regulated DC Filament Supply
  54. D3a-300b amp help!
  55. Need Schematic for this GE Console fast.
  56. Sound experiences 6SN7
  57. EL152 maximum operating settings?
  58. OMG just scored a huge lot of Nos/Nib tube lot for $20
  59. Help with DN2540 CCS design
  60. Strange problem with Caps not blocking DC
  61. Help and suggestions for My Phono and pre amp
  62. PCB and transformer placing and shielding
  63. MC-40 bias current?
  64. Gyrator on ccs-tailed LTP?
  65. capacitor polarity on a VM 20050 amp
  66. Choke? Where to begin?
  67. H11F1 Switching in tube circuits
  68. cooling traditional E-core iron transformers
  69. New vacuum-tube preamp-project!
  70. DIY tube tester
  71. NABU TuneLabSE Buildup
  72. I just inherited a TON of tubes and tube amp components.
  73. Filament Transformer Question ?
  74. Low gain in Heathkit SA-2 phonostage
  75. speakers for leak tl12+
  76. LM3875 + Broskie Cathode Follower. (PICS)
  77. Has anyone built Andrea Ciuffolis Phono End ?
  78. tube substitute
  79. Motorcapacitors in high volt. power supplies?
  80. Troughline, Stereo 20, Technics 1200.Unhappy!
  81. Troughline, Stereo 20, Technics 1200.Unhappy!
  82. Volume potentiometer: the best way to do it...
  83. KT120 "triode" and Hammond 1650N
  84. Tubecad SE Amp Cad
  85. 5702wb
  86. Does anyone know of a company that makes circular risers for tubes?
  87. Negative feedback to differential pair driver
  88. effects send and/or preamp out jack on guitar amps
  89. 6L6 UL Power
  90. Bench Power Supply: What to look for ? Which one to get ?
  91. Bevois Valley EL84 PP - distortion in one channel
  92. good by til next winter
  93. PSUD Questions
  94. Power Transformer Wiring Question ?
  95. Fisher 500C C82/C84 ceramic capacitor function
  96. Tubes to first taker
  97. Neutral wired to chassis, how to add a 3-prong cord?
  98. Heater Transformer - too much voltage
  99. Capacitor value
  100. WD KT88
  101. Ultimate spud amp - any ideas ?
  102. Please Critique My Grounding Scheme
  103. negative voltage drop across a diode
  104. 1.5K 200W output transformers? What tubes?
  105. 50 Type Tube
  106. "12SR7 Starving Student" plays extremly quiet
  107. questions about some sim software
  108. Drive
  109. 4xKT88 into Hammond 1650T, what am I missing?
  110. double mono SE
  111. Two electrolytic cap selection questions
  112. Could This Be the Future of Vacuum Tubes?
  113. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  114. Rydel's triode model coefficients
  115. 2E26 Options
  116. Loud Popping Dynaco ST-70
  117. Are these EL34's good?
  118. Amp schematic for Sovtek/Svetlana tubes
  119. KT66 power tube amplifier
  120. 6П3С Plate Voltage
  121. Help choosing which Amplifier to build
  122. need help choosing between two amp schems
  123. 100 W-class Circlotron
  124. How can i match power tubes for Transconductance ?
  125. ef89 ef86
  126. ecc82 5687 preamp! audionote
  127. Hammond transformer questions
  128. IXYS CP20M45 IXC - anyone come across them ?
  129. Good Source for Nice Analog Panel Ammeters for 833C Build?
  130. Restore or build from new?
  131. Bob Danielak 826 Amp?
  132. Newbie Tube Power Supply
  133. What shall I build/do with this lot of tubes?
  134. Gingertubes ecl86 amp build
  135. DC restorer
  136. ECF801 Triode/Pentode any useful application ?
  137. Baking Tubes Procedure - Help...
  138. AVO VCM-163 Tube tester problem
  139. ECC82 normal vs ECC82 long plate
  140. 45 Type Push/Pull Amps
  141. leak tl12+
  142. Triode for 60V
  143. Tube Sound Processor
  144. McIntosh MC-275 buy or build an auto-bias tube amp?
  145. slp-90 clone, decent preamp!
  146. Triode St70 with hum
  147. SSR switching HT transformer?
  148. Tube Flash Drive
  149. 6S31B-P Grid current
  150. Tube Op Amp Building Blocks
  151. knight kb-85 restoration/mod
  152. Acceptable Power Supply Noise Limits?
  153. Loadlines and Microsoft Paint
  154. aikido noval all in one caps upgrade
  155. Specific grid stopper question
  156. GU50 Screen Driven, DC Coupled
  157. April fool?
  158. Providing both balanced and unbalanced inputs
  159. Best triode section inside ecc81 tube?
  160. opt for 45 tube
  161. Designing an Interstage Transformer
  162. Tube Amplifier Builder's Competition
  163. testing tubes for shorts
  164. Tube kits
  165. GU29 PP Amplifier
  166. 1625 tube radio?
  167. Measuring volts on an unloaded PSU secondary
  168. Suggest a preamp project for me.
  169. Audio Magazine
  170. Jadis DA88S schematic
  171. clone jadis jp200 preamp
  172. GROMMES LJ5
  173. Altec 1570B Feedback
  174. rebuilding 3tube zenith amp
  175. Effect of lower G2, EL84 PP
  176. Phono connection for pioneer sx34b
  177. Low output from two 6L6's for no apparent reason?
  178. Preamp design ok?
  179. GZ34 base?
  180. Tube Technology Genesis 100w monoblock manual?
  181. 6SN7 & 6V6 Push Pull - increase gain
  182. screen grid resistor value
  183. KT88 design questions
  184. el84/12ax7 se schematic needed!
  185. Broken AMC CVT 2100
  186. 98dB speaker - El Cheapo
  187. consolidated raw tube data
  188. Loadlines for Parallel SE outputs
  189. What is the correct load for an 845 triode?
  190. Rauland W-835A amplifier, choke field coil output?
  191. First use for Trancendent Sound Tube Analyzer
  192. Schematics/vintage
  193. APPJ PA0901A / Miniwatt N3 schematics
  194. APPJ PA0901A() schematics
  195. Help Needed: Lower Gain on a Tube Amp?
  196. Help: Hickok Western Electric KS-15750 Calibration
  197. Mullard ecc82 12au7 code help
  198. Wondering if I can use this XFMR to power two NYD 6SN7 1 bottle pres
  199. ST-70 Power Transformer
  200. Help Identifying a Tube - Westinghouse 12AX7A
  201. An incredible collection!
  202. Using only half of a stereo PP amp
  203. Alternate Electrolytic Caps for SimpleSE (and others)
  204. Low voltage vs. High Voltage Preamp.
  205. 6J6 Headphone hybrid amplifer?
  206. Hybrid headphone amp.....
  207. Please help with hum problem..
  208. Dead Audio Innovations Series 500
  209. Problems with E88CC / 6922 drawing grid current on power-up
  210. H.J.Leak TL12 "point one"
  211. Tubecad hybrird feedforward feedback shunt regulator
  212. 6v6 SE kit - any good?
  213. DBX 576 complete upgrade. Advices?
  214. help !! 45 tube
  215. 6P45S PP, simulation frustration.
  216. AMC CVT 3030 one more try - or dumpster
  217. Help for 211 HV PSU with damper diodes
  218. Flexible supply idea
  219. what range speaker used 2x 18watt or 2x 10 watt on 18 watts amp
  220. Equalizer on EL84 project
  221. parallel single-ended 12W6
  222. help improving/refurb a Fisher k-10 Tube spring reverb
  223. S.E.X. amp + Impedance switch build problems.
  224. problem with speaker
  225. EC80 as preamp tube.
  226. 6CJ3 Rectifier Connection Question ?
  227. AC Filament Voltage Question ?
  228. My new GU50 SE (all pentode)
  229. Ming Da MC-3R Schematics
  230. 12B4 PSE build thread
  231. Looking for options for 4 volt heater
  232. Help me,Art Audio Concerto
  233. heathkit t3 12sh7 tube
  234. PSU dimensioning for pre-amp
  235. Old ceramic dogbone capacitor color codes
  236. Williamson preamp identification help wanted
  237. Adequate switch for UL-triode-pentode
  238. pl500 based integrated OTL amplifier
  239. Capacitor dielectric - high impedance headphones
  240. REQUEST FOR OPINIONS
  241. Mysterious LCR phono preamp
  242. Eimac 100TL Output Transformers and Bias Point ?
  243. Tube deterioration
  244. Heathkit XO-1 power cords
  245. EF86 Push-Pull "power"-amp
  246. Transformers!?
  247. Weird ground loop problem
  248. Re-caping Cayin A70-T
  249. A3 attenuator help for an Aikido line amp
  250. Driver Tube Power Supply Question ?

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