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  1. output transfo problem
  2. Pair of Fisher CA-40 Oddballs
  3. Model 601 tube amp.
  4. Model 601 Tube amp
  5. First power amp build. Is this normal??
  6. Compactronized 6146
  7. Preamp and inverter on B7G base tubes circuit.
  8. Advice and Suggestions on Amp designs
  9. Help who tube buffer x10-d
  10. EL803S-6CW5 / EL86 amp design check (schematic attached)
  11. amp buzz in one channel on inrush / power on
  12. SE 8-10W monoblock build help
  13. GlassWare Tube CAD
  14. SMD Parts and the DIYer
  15. 6CW5 / EL86 operating point
  16. RH84 power output
  17. 6n6p-ir
  18. Transformer bubbling
  19. Crackling noise.... pls help on Pre-amp
  20. RH84 amp. Plate is 300V. What voltage...
  21. Amplificator Class A 2 X EL504
  22. Help in testing 12ax7 and 7869 tubes
  23. Micro-Cap Tubes Parameters question
  24. Cathode Bypass Capacitor
  25. NOOB ALERT! sooo omany questions.....
  26. IS THIS A REAL E810F ???
  27. Chassis design question / cooling of small signal valves
  28. 5 leads pp output transformer
  29. Vote and Comment: SRPP vs. Aikido vs. Grounded Grid
  30. NEED ADVICE ON THIS SCHEMATIC AND WILL IT WOFK
  31. Help Identifying a Console Pull Amplifier
  32. sunaudio 2A3 circuit...is it good for newbie?
  33. KT120: When does it starts to sing ?
  34. Simple Time Delay (no more excuses for not having one)
  35. Cary SLP-05
  36. 6SN7 Grounded Grid
  37. input selector switch replacement help
  38. help needed with transformer wiring
  39. Tube Schematic Drawig Packages
  40. 12AU7 - 5V4G easy amplifier
  41. Glassware CCA 9-pin PDF
  42. Replacement for the tube 6922 (ECC88)?
  43. Which probes for my first scope?
  44. PP CATHODE BIAS WITH "CCS"
  45. current output tube amplifier
  46. Tube amp for a small room (newbie-like)
  47. What is this old thing from1929?
  48. Arduino cathode current HT etc
  49. Bizzare Output Transformer Connectivity...
  50. OPT to KT88?
  51. Help needed on identifing tube
  52. Amplifier circuit from tube radio
  53. Amplifier circuit from tube radio
  54. Using Valves Library in EAGLE CAD
  55. Biggest noval power pentode?
  56. Akita 12V preamp thoughts
  57. Help, what is this (Marconi 6204) ?
  58. Anyone try DHT 33 or 1Q5 Pentodes wired as Triode?
  59. Would this be a good buy?
  60. Looking for a complete DIY Tube amp
  61. Schematic by TS LIM Pre-amp
  62. Fisher Model 100 'AZ' Mono Amp Rebuild w/ Oscillations
  63. Measuring inductance
  64. Leak stereo 20
  65. Gain and gm of a QQE03/20 anyone ??
  66. Power supply options for tube amplifiers.
  67. CCS question mA
  68. Help wanted with testing and finetuning.
  69. YAQIN VK2100 pre amp
  70. Identify record player and valve
  71. AC Line Filter
  72. blue flash inside 5Y3GT
  73. Heater-Cathode Leakage
  74. Old Tube Kit
  75. Point to Point SET KT88/6550 Build
  76. D3a - MOSFET HYBRID CIRCLOTRON
  77. Aikido CCDA
  78. output impedance
  79. Bizzaro fix for hum problem needs explanation! Pretty Please
  80. Bizzaro fix for hum problem needs explanation! Pretty Please
  81. Questions regarding first build - K-502
  82. Good tube tech in Brooklyn NYC?
  83. Looking for LTspice tube models
  84. Audio Research SP15 : faulty phono stage
  85. Spark 810 looking for the diagram
  86. HP 8903B Question ?
  87. 1955 Hammond Organ Tube Amp
  88. Suggestions Please
  89. Croft Series 4 PL519 regulator
  90. Rectifier ID
  91. Adding headphone output to Darling amp
  92. CLC vs CLCLC Filter Power Supply
  93. Where to get Vacuum Tube Valley magazine?
  94. Magnavox 8802 HELP!!!
  95. Vaa for KT120
  96. Tubes in a Home Theater?
  97. Yaqin mc 10l tube risers?
  98. Wiring an LED strip into an amp?
  99. Need a bit more power :)
  100. yaqin 100b kt88-98 bulb blown and smoking coming from the amp
  101. Amp. 2x5W RV12 P2000driver RL12 P10 final
  102. Layout challange: Dual Maggie AMP148 based.
  103. Replacement PT question
  104. Real Telefunken E88CC?
  105. Any audio differences for EL-84 P-P OPT?
  106. Need help identifying this amplifier.
  107. Can anyone identify this valve / tube?
  108. Pentode-like Triodes
  109. Telefunken EL156 SE experience
  110. Help with a Tubelab SE Power Supply Transformer
  111. 33:1 opt for 5:1 use?
  112. Siemens B30C600 selenium bridge rectifier
  113. ECC81 mu-follower problem
  114. Audio Note M7 line stage preaamp!
  115. Should I upgrade considering.....
  116. Using Wards SE EL84 Transformers for Decware Zenkit1
  117. Parts Box 300b
  118. TO-9105-1 Triodeelectronics output transformer
  119. Need help pairing Martin Logan Sequel II speakers with 4 Watt tube monoblocks
  120. What is your comment about akido linestage?
  121. Driving an EL34 amp without driver stage ?
  122. Mystery Telefunken T9 amp
  123. Improving preamp's bass response.
  124. EZ150
  125. Need help identifying baldwin tube amp
  126. 45 amp with 6N7
  127. Selecting 5881's question
  128. Schematic with ECC88
  129. PP Output Transformers
  130. Gas Tube Question (CK1006 Rectifier)
  131. Art Audio Quintet MK1 EL34 PP resistor value
  132. The Midlife Crisis - My 833C Amp Build
  133. Tube amp Building Compitition Interest check
  134. Found myself a Magnavox 9302-00
  135. DIY Stereo Amp 15-50wpc
  136. Gray Research AM-50
  137. Preamp Grounding and Hum
  138. What to do with AA-100 output iron
  139. Flat screen t.v. and tube amps?
  140. 12AX7 Plate Current vs. HT Voltage
  141. Hammond A0-29 project organ amp
  142. Need help with Phono preamp build with microcontroller relay switching
  143. CCS fixed bias
  144. Gerber file help!!!!!!!
  145. Finally real inductance of a grid resistor...
  146. 12B4 vs. 12B4A
  147. Simple hybrid amplifier
  148. VTL Stereo 50
  149. Distributed volume pot
  150. DHT fixed bias schematic
  151. Wiring a power transformer
  152. What can I do with these tubes?
  153. RCA SP-20 circuit question.
  154. Magnavox Model 1ST525A
  155. LD91 signature power transformer wires Help?
  156. Effect of Regulated DC Filament Supply
  157. D3a-300b amp help!
  158. Need Schematic for this GE Console fast.
  159. Sound experiences 6SN7
  160. EL152 maximum operating settings?
  161. OMG just scored a huge lot of Nos/Nib tube lot for $20
  162. Help with DN2540 CCS design
  163. Strange problem with Caps not blocking DC
  164. Help and suggestions for My Phono and pre amp
  165. PCB and transformer placing and shielding
  166. MC-40 bias current?
  167. Gyrator on ccs-tailed LTP?
  168. capacitor polarity on a VM 20050 amp
  169. Choke? Where to begin?
  170. H11F1 Switching in tube circuits
  171. cooling traditional E-core iron transformers
  172. New vacuum-tube preamp-project!
  173. DIY tube tester
  174. NABU TuneLabSE Buildup
  175. I just inherited a TON of tubes and tube amp components.
  176. Filament Transformer Question ?
  177. Low gain in Heathkit SA-2 phonostage
  178. speakers for leak tl12+
  179. LM3875 + Broskie Cathode Follower. (PICS)
  180. Has anyone built Andrea Ciuffolis Phono End ?
  181. tube substitute
  182. Motorcapacitors in high volt. power supplies?
  183. Troughline, Stereo 20, Technics 1200.Unhappy!
  184. Troughline, Stereo 20, Technics 1200.Unhappy!
  185. Volume potentiometer: the best way to do it...
  186. KT120 "triode" and Hammond 1650N
  187. Tubecad SE Amp Cad
  188. 5702wb
  189. Does anyone know of a company that makes circular risers for tubes?
  190. Negative feedback to differential pair driver
  191. 6L6 UL Power
  192. Bench Power Supply: What to look for ? Which one to get ?
  193. Bevois Valley EL84 PP - distortion in one channel
  194. good by til next winter
  195. PSUD Questions
  196. Power Transformer Wiring Question ?
  197. Fisher 500C C82/C84 ceramic capacitor function
  198. Tubes to first taker
  199. Neutral wired to chassis, how to add a 3-prong cord?
  200. Heater Transformer - too much voltage
  201. Capacitor value
  202. WD KT88
  203. Ultimate spud amp - any ideas ?
  204. Please Critique My Grounding Scheme
  205. negative voltage drop across a diode
  206. 1.5K 200W output transformers? What tubes?
  207. 50 Type Tube
  208. "12SR7 Starving Student" plays extremly quiet
  209. questions about some sim software
  210. Drive
  211. 4xKT88 into Hammond 1650T, what am I missing?
  212. double mono SE
  213. Two electrolytic cap selection questions
  214. Could This Be the Future of Vacuum Tubes?
  215. Thermography on 6C33C/6C18C aka. 6S33S/6S18S
  216. Rydel's triode model coefficients
  217. 2E26 Options
  218. Loud Popping Dynaco ST-70
  219. Are these EL34's good?
  220. Amp schematic for Sovtek/Svetlana tubes
  221. KT66 power tube amplifier
  222. 6П3С Plate Voltage
  223. Help choosing which Amplifier to build
  224. need help choosing between two amp schems
  225. 100 W-class Circlotron
  226. How can i match power tubes for Transconductance ?
  227. ef89 ef86
  228. ecc82 5687 preamp! audionote
  229. Hammond transformer questions
  230. IXYS CP20M45 IXC - anyone come across them ?
  231. Good Source for Nice Analog Panel Ammeters for 833C Build?
  232. Restore or build from new?
  233. Bob Danielak 826 Amp?
  234. Newbie Tube Power Supply
  235. What shall I build/do with this lot of tubes?
  236. Gingertubes ecl86 amp build
  237. DC restorer
  238. ECF801 Triode/Pentode any useful application ?
  239. Baking Tubes Procedure - Help...
  240. AVO VCM-163 Tube tester problem
  241. ECC82 normal vs ECC82 long plate
  242. 45 Type Push/Pull Amps
  243. leak tl12+
  244. Triode for 60V
  245. Tube Sound Processor
  246. McIntosh MC-275 buy or build an auto-bias tube amp?
  247. slp-90 clone, decent preamp!
  248. Triode St70 with hum
  249. SSR switching HT transformer?
  250. Tube Flash Drive

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