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  1. Headphone tube amp with balanced output?
  2. Tube buffer with 6n1p-EV
  3. First little SE
  4. ID Nice Unknown Tube
  5. Bell and Howell Model-601
  6. what should my mulit reader be on to bias yaqin 100b
  7. Fixing an old Tandberg Huldra 6 Radio
  8. 30W sweep tube amp
  9. Atmosphère S-40 with KT88, does someone know about this amp?
  10. What happens when Output transformer max voltage (slightly) exceeded?
  11. what type is the best?
  12. Kiwame carbon resistors
  13. Rocker Switch Wiring
  14. RH6550
  15. Diodes for Marantz 8B
  16. Diodes for Marantz 8B
  17. Telefunken 2430 Opus Resistor Burnout
  18. yaqin 100b with 2 different kt88 valves 2 are Genelex Gold Lion and 2 are Svetlena wi
  19. Conrad Johnson MV40 copy and Fisher OP's
  20. Are EF86 Tubes inherently microphonic?
  21. Counterpoint SA-1000 Hum in left channel Pinging Anatech!
  22. Need a rectifier tube...
  23. Looking for Harman Kardon Allegro A-10 Schematic or PhotoFact.
  24. How much spl can a triode take?
  25. Octal CCDA kit - help needed!
  26. Mod input of 6AU6/6AQ5 amp for iPod
  27. Put a tube on your PC just for fun..
  28. ST35 Cathode Feedback
  29. Series Shunt tube regulator
  30. Help ID this tube ^&$**@# lettering!
  31. Adding a db VU meter to an existing tube mic pre
  32. Quad 22 interstage cap?
  33. 4P1L triode PP (40W!!?)
  34. KT88 shootout vintage vs new vs 90
  35. Help needed to identify this british made Amp
  36. PSU II Question
  37. Quality tube buffer with ECC83
  38. K12g Amp Question
  39. output transfo problem
  40. Pair of Fisher CA-40 Oddballs
  41. Model 601 tube amp.
  42. Model 601 Tube amp
  43. First power amp build. Is this normal??
  44. Compactronized 6146
  45. Preamp and inverter on B7G base tubes circuit.
  46. Advice and Suggestions on Amp designs
  47. Help who tube buffer x10-d
  48. EL803S-6CW5 / EL86 amp design check (schematic attached)
  49. amp buzz in one channel on inrush / power on
  50. SE 8-10W monoblock build help
  51. GlassWare Tube CAD
  52. SMD Parts and the DIYer
  53. 6CW5 / EL86 operating point
  54. RH84 power output
  55. 6n6p-ir
  56. Transformer bubbling
  57. Crackling noise.... pls help on Pre-amp
  58. RH84 amp. Plate is 300V. What voltage...
  59. Amplificator Class A 2 X EL504
  60. Help in testing 12ax7 and 7869 tubes
  61. Micro-Cap Tubes Parameters question
  62. Cathode Bypass Capacitor
  63. NOOB ALERT! sooo omany questions.....
  64. IS THIS A REAL E810F ???
  65. Chassis design question / cooling of small signal valves
  66. 5 leads pp output transformer
  67. Vote and Comment: SRPP vs. Aikido vs. Grounded Grid
  68. NEED ADVICE ON THIS SCHEMATIC AND WILL IT WOFK
  69. Help Identifying a Console Pull Amplifier
  70. sunaudio 2A3 circuit...is it good for newbie?
  71. KT120: When does it starts to sing ?
  72. Simple Time Delay (no more excuses for not having one)
  73. Cary SLP-05
  74. 6SN7 Grounded Grid
  75. input selector switch replacement help
  76. help needed with transformer wiring
  77. Tube Schematic Drawig Packages
  78. 12AU7 - 5V4G easy amplifier
  79. Glassware CCA 9-pin PDF
  80. Replacement for the tube 6922 (ECC88)?
  81. Which probes for my first scope?
  82. PP CATHODE BIAS WITH "CCS"
  83. current output tube amplifier
  84. Tube amp for a small room (newbie-like)
  85. What is this old thing from1929?
  86. Arduino cathode current HT etc
  87. Bizzare Output Transformer Connectivity...
  88. OPT to KT88?
  89. Help needed on identifing tube
  90. Amplifier circuit from tube radio
  91. Amplifier circuit from tube radio
  92. Using Valves Library in EAGLE CAD
  93. Biggest noval power pentode?
  94. Akita 12V preamp thoughts
  95. Help, what is this (Marconi 6204) ?
  96. Anyone try DHT 33 or 1Q5 Pentodes wired as Triode?
  97. Would this be a good buy?
  98. Looking for a complete DIY Tube amp
  99. Schematic by TS LIM Pre-amp
  100. Fisher Model 100 'AZ' Mono Amp Rebuild w/ Oscillations
  101. Measuring inductance
  102. Leak stereo 20
  103. Gain and gm of a QQE03/20 anyone ??
  104. Power supply options for tube amplifiers.
  105. CCS question mA
  106. Help wanted with testing and finetuning.
  107. YAQIN VK2100 pre amp
  108. Identify record player and valve
  109. AC Line Filter
  110. blue flash inside 5Y3GT
  111. Heater-Cathode Leakage
  112. Old Tube Kit
  113. Point to Point SET KT88/6550 Build
  114. D3a - MOSFET HYBRID CIRCLOTRON
  115. Aikido CCDA
  116. output impedance
  117. Bizzaro fix for hum problem needs explanation! Pretty Please
  118. Bizzaro fix for hum problem needs explanation! Pretty Please
  119. Questions regarding first build - K-502
  120. Good tube tech in Brooklyn NYC?
  121. Looking for LTspice tube models
  122. Audio Research SP15 : faulty phono stage
  123. Spark 810 looking for the diagram
  124. HP 8903B Question ?
  125. 1955 Hammond Organ Tube Amp
  126. Suggestions Please
  127. Croft Series 4 PL519 regulator
  128. Rectifier ID
  129. Adding headphone output to Darling amp
  130. CLC vs CLCLC Filter Power Supply
  131. Where to get Vacuum Tube Valley magazine?
  132. Magnavox 8802 HELP!!!
  133. Vaa for KT120
  134. Tubes in a Home Theater?
  135. Yaqin mc 10l tube risers?
  136. Wiring an LED strip into an amp?
  137. Need a bit more power :)
  138. yaqin 100b kt88-98 bulb blown and smoking coming from the amp
  139. Amp. 2x5W RV12 P2000driver RL12 P10 final
  140. Layout challange: Dual Maggie AMP148 based.
  141. Replacement PT question
  142. Real Telefunken E88CC?
  143. Any audio differences for EL-84 P-P OPT?
  144. Need help identifying this amplifier.
  145. Can anyone identify this valve / tube?
  146. Pentode-like Triodes
  147. Telefunken EL156 SE experience
  148. 33:1 opt for 5:1 use?
  149. Siemens B30C600 selenium bridge rectifier
  150. ECC81 mu-follower problem
  151. Audio Note M7 line stage preaamp!
  152. Should I upgrade considering.....
  153. Using Wards SE EL84 Transformers for Decware Zenkit1
  154. Parts Box 300b
  155. TO-9105-1 Triodeelectronics output transformer
  156. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  157. What is your comment about akido linestage?
  158. Driving an EL34 amp without driver stage ?
  159. Mystery Telefunken T9 amp
  160. Improving preamp's bass response.
  161. EZ150
  162. Need help identifying baldwin tube amp
  163. 45 amp with 6N7
  164. Selecting 5881's question
  165. Schematic with ECC88
  166. PP Output Transformers
  167. Gas Tube Question (CK1006 Rectifier)
  168. Art Audio Quintet MK1 EL34 PP resistor value
  169. The Midlife Crisis - My 833C Amp Build
  170. Tube amp Building Compitition Interest check
  171. Found myself a Magnavox 9302-00
  172. DIY Stereo Amp 15-50wpc
  173. Gray Research AM-50
  174. Preamp Grounding and Hum
  175. What to do with AA-100 output iron
  176. Flat screen t.v. and tube amps?
  177. 12AX7 Plate Current vs. HT Voltage
  178. Need help with Phono preamp build with microcontroller relay switching
  179. CCS fixed bias
  180. Gerber file help!!!!!!!
  181. Finally real inductance of a grid resistor...
  182. 12B4 vs. 12B4A
  183. Simple hybrid amplifier
  184. VTL Stereo 50
  185. Distributed volume pot
  186. DHT fixed bias schematic
  187. Wiring a power transformer
  188. What can I do with these tubes?
  189. RCA SP-20 circuit question.
  190. Magnavox Model 1ST525A
  191. LD91 signature power transformer wires Help?
  192. Effect of Regulated DC Filament Supply
  193. D3a-300b amp help!
  194. Need Schematic for this GE Console fast.
  195. Sound experiences 6SN7
  196. EL152 maximum operating settings?
  197. OMG just scored a huge lot of Nos/Nib tube lot for $20
  198. Help with DN2540 CCS design
  199. Strange problem with Caps not blocking DC
  200. Help and suggestions for My Phono and pre amp
  201. PCB and transformer placing and shielding
  202. MC-40 bias current?
  203. Gyrator on ccs-tailed LTP?
  204. capacitor polarity on a VM 20050 amp
  205. Choke? Where to begin?
  206. H11F1 Switching in tube circuits
  207. cooling traditional E-core iron transformers
  208. New vacuum-tube preamp-project!
  209. NABU TuneLabSE Buildup
  210. I just inherited a TON of tubes and tube amp components.
  211. Filament Transformer Question ?
  212. Low gain in Heathkit SA-2 phonostage
  213. speakers for leak tl12+
  214. LM3875 + Broskie Cathode Follower. (PICS)
  215. Has anyone built Andrea Ciuffolis Phono End ?
  216. tube substitute
  217. Motorcapacitors in high volt. power supplies?
  218. Troughline, Stereo 20, Technics 1200.Unhappy!
  219. Troughline, Stereo 20, Technics 1200.Unhappy!
  220. Volume potentiometer: the best way to do it...
  221. KT120 "triode" and Hammond 1650N
  222. Tubecad SE Amp Cad
  223. 5702wb
  224. Does anyone know of a company that makes circular risers for tubes?
  225. Negative feedback to differential pair driver
  226. 6L6 UL Power
  227. Bench Power Supply: What to look for ? Which one to get ?
  228. Bevois Valley EL84 PP - distortion in one channel
  229. good by til next winter
  230. PSUD Questions
  231. Power Transformer Wiring Question ?
  232. Fisher 500C C82/C84 ceramic capacitor function
  233. Tubes to first taker
  234. Neutral wired to chassis, how to add a 3-prong cord?
  235. Heater Transformer - too much voltage
  236. Capacitor value
  237. WD KT88
  238. Ultimate spud amp - any ideas ?
  239. Please Critique My Grounding Scheme
  240. negative voltage drop across a diode
  241. 1.5K 200W output transformers? What tubes?
  242. 50 Type Tube
  243. "12SR7 Starving Student" plays extremly quiet
  244. questions about some sim software
  245. Drive
  246. 4xKT88 into Hammond 1650T, what am I missing?
  247. double mono SE
  248. Two electrolytic cap selection questions
  249. Could This Be the Future of Vacuum Tubes?
  250. Thermography on 6C33C/6C18C aka. 6S33S/6S18S

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