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  1. Amplifier circuit from tube radio
  2. Amplifier circuit from tube radio
  3. Using Valves Library in EAGLE CAD
  4. Biggest noval power pentode?
  5. Akita 12V preamp thoughts
  6. Help, what is this (Marconi 6204) ?
  7. Anyone try DHT 33 or 1Q5 Pentodes wired as Triode?
  8. Would this be a good buy?
  9. Looking for a complete DIY Tube amp
  10. Schematic by TS LIM Pre-amp
  11. Fisher Model 100 'AZ' Mono Amp Rebuild w/ Oscillations
  12. Measuring inductance
  13. Leak stereo 20
  14. Gain and gm of a QQE03/20 anyone ??
  15. Power supply options for tube amplifiers.
  16. CCS question mA
  17. Help wanted with testing and finetuning.
  18. YAQIN VK2100 pre amp
  19. Identify record player and valve
  20. AC Line Filter
  21. blue flash inside 5Y3GT
  22. Heater-Cathode Leakage
  23. Old Tube Kit
  24. Point to Point SET KT88/6550 Build
  25. D3a - MOSFET HYBRID CIRCLOTRON
  26. Aikido CCDA
  27. output impedance
  28. Bizzaro fix for hum problem needs explanation! Pretty Please
  29. Bizzaro fix for hum problem needs explanation! Pretty Please
  30. Questions regarding first build - K-502
  31. Good tube tech in Brooklyn NYC?
  32. Looking for LTspice tube models
  33. Audio Research SP15 : faulty phono stage
  34. Spark 810 looking for the diagram
  35. HP 8903B Question ?
  36. 1955 Hammond Organ Tube Amp
  37. Suggestions Please
  38. Croft Series 4 PL519 regulator
  39. Rectifier ID
  40. Adding headphone output to Darling amp
  41. CLC vs CLCLC Filter Power Supply
  42. Where to get Vacuum Tube Valley magazine?
  43. Magnavox 8802 HELP!!!
  44. Vaa for KT120
  45. Tubes in a Home Theater?
  46. Yaqin mc 10l tube risers?
  47. Wiring an LED strip into an amp?
  48. Need a bit more power :)
  49. yaqin 100b kt88-98 bulb blown and smoking coming from the amp
  50. Amp. 2x5W RV12 P2000driver RL12 P10 final
  51. Layout challange: Dual Maggie AMP148 based.
  52. Replacement PT question
  53. Real Telefunken E88CC?
  54. Any audio differences for EL-84 P-P OPT?
  55. Need help identifying this amplifier.
  56. Can anyone identify this valve / tube?
  57. Pentode-like Triodes
  58. Telefunken EL156 SE experience
  59. 33:1 opt for 5:1 use?
  60. Siemens B30C600 selenium bridge rectifier
  61. ECC81 mu-follower problem
  62. Audio Note M7 line stage preaamp!
  63. Should I upgrade considering.....
  64. Using Wards SE EL84 Transformers for Decware Zenkit1
  65. Parts Box 300b
  66. TO-9105-1 Triodeelectronics output transformer
  67. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  68. What is your comment about akido linestage?
  69. Driving an EL34 amp without driver stage ?
  70. Mystery Telefunken T9 amp
  71. Improving preamp's bass response.
  72. EZ150
  73. Need help identifying baldwin tube amp
  74. 45 amp with 6N7
  75. Selecting 5881's question
  76. Schematic with ECC88
  77. PP Output Transformers
  78. Gas Tube Question (CK1006 Rectifier)
  79. Art Audio Quintet MK1 EL34 PP resistor value
  80. The Midlife Crisis - My 833C Amp Build
  81. Tube amp Building Compitition Interest check
  82. Found myself a Magnavox 9302-00
  83. DIY Stereo Amp 15-50wpc
  84. Gray Research AM-50
  85. Preamp Grounding and Hum
  86. What to do with AA-100 output iron
  87. Flat screen t.v. and tube amps?
  88. 12AX7 Plate Current vs. HT Voltage
  89. Need help with Phono preamp build with microcontroller relay switching
  90. CCS fixed bias
  91. Gerber file help!!!!!!!
  92. Finally real inductance of a grid resistor...
  93. 12B4 vs. 12B4A
  94. Simple hybrid amplifier
  95. VTL Stereo 50
  96. Distributed volume pot
  97. DHT fixed bias schematic
  98. Wiring a power transformer
  99. What can I do with these tubes?
  100. RCA SP-20 circuit question.
  101. Magnavox Model 1ST525A
  102. LD91 signature power transformer wires Help?
  103. Effect of Regulated DC Filament Supply
  104. D3a-300b amp help!
  105. Need Schematic for this GE Console fast.
  106. Sound experiences 6SN7
  107. EL152 maximum operating settings?
  108. OMG just scored a huge lot of Nos/Nib tube lot for $20
  109. Help with DN2540 CCS design
  110. Strange problem with Caps not blocking DC
  111. Help and suggestions for My Phono and pre amp
  112. PCB and transformer placing and shielding
  113. MC-40 bias current?
  114. Gyrator on ccs-tailed LTP?
  115. capacitor polarity on a VM 20050 amp
  116. Choke? Where to begin?
  117. H11F1 Switching in tube circuits
  118. cooling traditional E-core iron transformers
  119. New vacuum-tube preamp-project!
  120. NABU TuneLabSE Buildup
  121. I just inherited a TON of tubes and tube amp components.
  122. Filament Transformer Question ?
  123. Low gain in Heathkit SA-2 phonostage
  124. speakers for leak tl12+
  125. LM3875 + Broskie Cathode Follower. (PICS)
  126. Has anyone built Andrea Ciuffolis Phono End ?
  127. tube substitute
  128. Motorcapacitors in high volt. power supplies?
  129. Troughline, Stereo 20, Technics 1200.Unhappy!
  130. Troughline, Stereo 20, Technics 1200.Unhappy!
  131. Volume potentiometer: the best way to do it...
  132. KT120 "triode" and Hammond 1650N
  133. Tubecad SE Amp Cad
  134. 5702wb
  135. Does anyone know of a company that makes circular risers for tubes?
  136. Negative feedback to differential pair driver
  137. 6L6 UL Power
  138. Bench Power Supply: What to look for ? Which one to get ?
  139. Bevois Valley EL84 PP - distortion in one channel
  140. good by til next winter
  141. PSUD Questions
  142. Power Transformer Wiring Question ?
  143. Fisher 500C C82/C84 ceramic capacitor function
  144. Tubes to first taker
  145. Neutral wired to chassis, how to add a 3-prong cord?
  146. Heater Transformer - too much voltage
  147. Capacitor value
  148. WD KT88
  149. Ultimate spud amp - any ideas ?
  150. Please Critique My Grounding Scheme
  151. negative voltage drop across a diode
  152. 1.5K 200W output transformers? What tubes?
  153. 50 Type Tube
  154. "12SR7 Starving Student" plays extremly quiet
  155. questions about some sim software
  156. Drive
  157. 4xKT88 into Hammond 1650T, what am I missing?
  158. double mono SE
  159. Two electrolytic cap selection questions
  160. Could This Be the Future of Vacuum Tubes?
  161. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  162. Rydel's triode model coefficients
  163. 2E26 Options
  164. Loud Popping Dynaco ST-70
  165. Are these EL34's good?
  166. Amp schematic for Sovtek/Svetlana tubes
  167. KT66 power tube amplifier
  168. 6П3С Plate Voltage
  169. Help choosing which Amplifier to build
  170. need help choosing between two amp schems
  171. 100 W-class Circlotron
  172. How can i match power tubes for Transconductance ?
  173. ef89 ef86
  174. ecc82 5687 preamp! audionote
  175. Hammond transformer questions
  176. IXYS CP20M45 IXC - anyone come across them ?
  177. Good Source for Nice Analog Panel Ammeters for 833C Build?
  178. Restore or build from new?
  179. Bob Danielak 826 Amp?
  180. Newbie Tube Power Supply
  181. What shall I build/do with this lot of tubes?
  182. Gingertubes ecl86 amp build
  183. DC restorer
  184. ECF801 Triode/Pentode any useful application ?
  185. Baking Tubes Procedure - Help...
  186. ECC82 normal vs ECC82 long plate
  187. 45 Type Push/Pull Amps
  188. leak tl12+
  189. Triode for 60V
  190. Tube Sound Processor
  191. McIntosh MC-275 buy or build an auto-bias tube amp?
  192. slp-90 clone, decent preamp!
  193. Triode St70 with hum
  194. SSR switching HT transformer?
  195. Tube Flash Drive
  196. 6S31B-P Grid current
  197. Tube Op Amp Building Blocks
  198. knight kb-85 restoration/mod
  199. Acceptable Power Supply Noise Limits?
  200. Loadlines and Microsoft Paint
  201. aikido noval all in one caps upgrade
  202. Specific grid stopper question
  203. GU50 Screen Driven, DC Coupled
  204. April fool?
  205. Providing both balanced and unbalanced inputs
  206. Best triode section inside ecc81 tube?
  207. opt for 45 tube
  208. Designing an Interstage Transformer
  209. Tube Amplifier Builder's Competition
  210. testing tubes for shorts
  211. Tube kits
  212. GU29 PP Amplifier
  213. 1625 tube radio?
  214. Measuring volts on an unloaded PSU secondary
  215. Suggest a preamp project for me.
  216. Audio Magazine
  217. Jadis DA88S schematic
  218. clone jadis jp200 preamp
  219. GROMMES LJ5
  220. Altec 1570B Feedback
  221. rebuilding 3tube zenith amp
  222. Effect of lower G2, EL84 PP
  223. Phono connection for pioneer sx34b
  224. Low output from two 6L6's for no apparent reason?
  225. Preamp design ok?
  226. GZ34 base?
  227. Tube Technology Genesis 100w monoblock manual?
  228. 6SN7 & 6V6 Push Pull - increase gain
  229. screen grid resistor value
  230. KT88 design questions
  231. el84/12ax7 se schematic needed!
  232. Broken AMC CVT 2100
  233. 98dB speaker - El Cheapo
  234. consolidated raw tube data
  235. Loadlines for Parallel SE outputs
  236. What is the correct load for an 845 triode?
  237. Rauland W-835A amplifier, choke field coil output?
  238. First use for Trancendent Sound Tube Analyzer
  239. Schematics/vintage
  240. APPJ PA0901A / Miniwatt N3 schematics
  241. APPJ PA0901A() schematics
  242. Help Needed: Lower Gain on a Tube Amp?
  243. Mullard ecc82 12au7 code help
  244. Wondering if I can use this XFMR to power two NYD 6SN7 1 bottle pres
  245. ST-70 Power Transformer
  246. Help Identifying a Tube - Westinghouse 12AX7A
  247. An incredible collection!
  248. Using only half of a stereo PP amp
  249. Low voltage vs. High Voltage Preamp.
  250. 6J6 Headphone hybrid amplifer?

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