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  1. newbie with a choke question
  2. ROCKOAL JUKEBOX 1458
  3. Who can help to recognize this tube preamp?
  4. DIY High power Audio Amplifier from Heathkit SB200
  5. ECL82 amplifier help
  6. 6146B SPICE model wanted
  7. how to install a bias meter in a cathode bias amp
  8. Stuck... Output tube for Single ended?
  9. Aikido Octal Headphone amp
  10. Impedance bridging
  11. Philips AG-9016 frequency range?
  12. fuse voltage rating?
  13. Grounding issue between turntable and tube amp
  14. Great sounding KT88 amp?
  15. Designing a Gomes i/v stage for tda1541a
  16. choke input power supply
  17. Need Help with New Amp Build, Ugly signals
  18. Amplifier Saftey
  19. Cary SLM100 question (older brand)
  20. 6n18p 6n1p 6n2p project needed
  21. Heater wiring idea?
  22. 300B Amp Testing
  23. New amp build
  24. Bamboo chassis 6P3P SE
  25. 6N23P-EB SRPP DAC output stage.
  26. Packard Plamor Schematic needed
  27. Hickok 600A
  28. Opinion; Alternate input tube socket
  29. Very Simple Attenuator For Audio Card
  30. Switchable PI, Paraphase,Cathodyne, LTP.
  31. Hmm... 4-1000As
  32. Bootstrapped anode
  33. Selecting the correct output transformer/primary impedance
  34. Caddock MK-132 or Mills MRA-12 as plate R?
  35. Minimum rating for stepdown transformer
  36. 6L6 Dared VP-20 issues
  37. Potentiometer Desigations/Codes
  38. 6L6 SE Tube Amp Kit on eBay... opinions?
  39. Building a VT46/PT25H PP amp
  40. Help choosing Sweat Peach FU50 or KT100
  41. New FM-3 Boards
  42. Unity-Coupled amp project
  43. Rectifier injecting noise into heater supply
  44. Tube base failures
  45. 1624 as DHT triode outputs
  46. Will this 2 stage DC DHT cct idea work?
  47. Help with Output Transformer
  48. multi cap verses add on power supply board
  49. 6AS7 hybride CCS
  50. Decware Zbox - looking for Tube buffer mods to reduce buzz
  51. Decware Zbox - looking for Tube buffer mods to reduce buzz
  52. Eico-ST-70 Advice
  53. Choosing Btw 2 EL34 China Tube Amps
  54. Looking for the GA article.
  55. Tube amp left ch. hum
  56. Did i model this PT correctly(psud2)?
  57. Help with the modifications of my tube-amp
  58. detailed photos of RH 84 build?
  59. heathkit aa-191
  60. Which KT-88 tube?
  61. 10m45s cascode diagram?
  62. What amp can make use of these large caps?
  63. Leslie 720 used with stereo keyboard
  64. Tube testers : sorting out settings for the Jackson 648
  65. Question about Shishido 2A3
  66. A micro-programmable tube tracer/tester
  67. amp with the FD422
  68. ST-35 C-1 Capacitor on PC-13 board.
  69. Transformer winding examples!!!!
  70. sansui sm-33
  71. How to mod ASL MG OTL 32 DT?
  72. 300b problem
  73. Audio Research M100s
  74. E83CC in PI or Preamp
  75. Current Dumping Amplifier
  76. Quicksilver 8417 Bias
  77. PtP wiring: Solidcore unshielded cable
  78. Removing a motor from a tube turntable.
  79. Why do I go to hamfests?
  80. Circlotron Amplifier Advice Needed
  81. Traces inside tube?
  82. Hybrid for Zobsky
  83. help identifying telefunken tubes
  84. 5U4GB Tube Power Supply Schematic
  85. Copland CTA-401 - early layout ?
  86. AVO CT160: Testing dual triodes
  87. Need to run heaters in output tubes, remove plate and screen safe?
  88. 1AG4 Direct Heated Pentode, Output
  89. grid stopper and grid choke on pentode input
  90. Has anyone tryied the GuiGuang 300B?
  91. Honeywell Mercury Tube?
  92. Tube audio-phoolery -- more teats on bulls
  93. Strange tube
  94. Adding a Headphone output to my amp.
  95. 6CG7 Phono/ linestage
  96. RH84 Build from old Dumont console
  97. 6N16 12x preamp srpp/cathode follower with printed circuit board design.
  98. Long Tail Pair
  99. Hickok 752A 5AR4 rectifier test?
  100. Shunt Capacitance in Output Transformer
  101. LTP vs single first stage
  102. 6n23 v. 6dj8 v. 6fq7
  103. newer than noob looking for advice on RH84
  104. 300B failed again
  105. No output transformer tube amp
  106. curious about a curious connection
  107. tube crossover project - http://www.pmillett.com/tube_active_crossover.htm
  108. My new "vintage" tube radio
  109. help designing 6L6G S.E. amplifier
  110. SVT output iron as single ended
  111. is 6s2p actually equiv to 8532?
  112. Grundig H&B 6007 tube power supply - Repair or gut for parts?
  113. Quad 22 stereo balance/ filter problem
  114. KR 2A3: problems?
  115. Philco F-1801
  116. KT88 Stereo Schematic and help
  117. Where should I connect ground reference for heater supply?
  118. Chassis size and layout question
  119. May tubes amps
  120. 12SX7 coin base tubes? Fake?
  121. Toroidal transformer on tube amp
  122. Current Mirrors in a balanced preamp
  123. Half-mu stage (or SRPP) w/6DJ8/6922/ECC88 tubes at Low B+ voltage?
  124. High-end Tube amp kits (all-included)
  125. High Current Maida
  126. High Current Maida
  127. Balanced tube preamp schematic or kit?
  128. Trying to find tube component supplier, lost webite ...VT42.com or something like it.
  129. 2A3 PP Can my OPT do the job?
  130. 1626 / 6j4 tube amp
  131. suggestions for driver tube for 2A3
  132. Does anyone know the specs for this Chinese pentode
  133. SiliconRay Kits
  134. Advice needed for hum reduction
  135. low voltage dc tube phase splitter/12AU7
  136. Damper rectifier tubes & voltage doubler
  137. Overheating Resistors on DAC board- "HELP NEEDED"
  138. opt primary inductance and secondary load
  139. SOS-HELP-AIDE-HILFE on " DAC dilema"
  140. Transformer Mounting Direction
  141. HELP! new to working on tube amps and need help with project im going to take on
  142. Fisher 500c radio hum
  143. Modify Power supply for Tube Amp
  144. Unusual amps..
  145. Help with Preamp/Amp hum
  146. Question about step up in 300B PP amp
  147. How do we reach PMillet?
  148. Please help me with a few questions and a idea for an old PA
  149. Edcor CXSE25-8-2.5K single ended UL transformer
  150. Voltseconds ccs for the K-12 kit
  151. The Torpedo Parafeed Headphone Amplifier
  152. Tube Rectifiers do sound different
  153. 6922, a 6DJ8 replacement??
  154. QB2/250 amplifier
  155. WE 350B and 311A
  156. Single ended 300b's
  157. More power!
  158. How the magnetic affect the sound of tube amplifier
  159. Valves replacement for Copland CT402
  160. Changing valve damage
  161. Tube phono preamplifier by 12ax7
  162. Altec 353A oddity
  163. I need to lose that Hummmm
  164. Reduce B+ with zener
  165. triode and pentode 6v6 in parallel
  166. How to make mic input transformer 150:50KCT for mic tube preamp???
  167. Webcor 12AU7 is it a Mullard?
  168. Everett AO48
  169. Resurrecting old tubes
  170. Lumley ST70 Output impedance change and other questions
  171. AC Heater reference to B+
  172. Two tube class a2 se trioded el84 with 12dw7 cathode follower driver?
  173. Overly complicated 1.6A CCS Heater Supply
  174. Hibryd amplifier with tube/valve ECC88 (PCC88) and chipamp LM1875
  175. Tube/Valve buffer with ECC88
  176. High(er) gm octal pentodes?
  177. Shielding Characteristics of Copper Clad PCB
  178. Starting a Meixing MC34-A07 modification project
  179. 6V SLA Dropping resistor for a 5VDC Filament Supply
  180. Wind (Thermionic?) noise, and other strange sounds
  181. Suggestions for an tube-amp with KT88
  182. SE-100 Golden Tube Audio - REPAIR
  183. Power amp vs preamp topology
  184. EL34 Characteristics for Ug2 400V
  185. old Heathkit amp
  186. Toroid OPT for 300B
  187. Help: Connecting two Fluke meters in series
  188. Preamp Volume Controls
  189. Output SE Transformer Question
  190. Silver bearing grease for tube sockets
  191. Should I try adding a small Tube Preamp to a DTA-100?
  192. IS 6N6P A DIRECT REPLACEMENT FOR ECC88CC ?
  193. Dynaco stereo 70 look alike
  194. Vacuum Tube factory: For Sale!
  195. Does anybody know anything about this German console
  196. Heater dillema for multi chassis phono stage.
  197. Q: lifespan of JJ ECC99 tubes
  198. Cold solder joint?
  199. Input Impedance/Buffers
  200. Old capacitors..Comments..
  201. Shizuki capacitors?
  202. Spectrum Analyzer: What to get ? What to look for in a spectrum analyzer ?
  203. Amperex Orange Globe 12ax7 ,Brimar cv4004
  204. Question about transformer lamination stacking techniques
  205. line preamplifier with 6c10
  206. Homebrew Toroidal Output Transformer
  207. Line output tube
  208. MJK's SSSchadeode
  209. Any one know were to buy the fu-80 tube?
  210. Maida Regulator PCB
  211. Suggestions for 7k output transformers.
  212. Help: Fluke 87V Meter Calibration
  213. Searching for Primaluna Prologue Three schematic
  214. Pentode Regulation Question
  215. pentodes with CCS load?
  216. Are these tube PCBs any good ?
  217. china 6L6 SEdiy
  218. What are your opinions of the ST-70 and St-120
  219. Baffle Step Compensation Tube Circuit
  220. 6L6 to 7027 cathode resistor value
  221. Dared MC-7P Upgrades
  222. adapter to go from 6L6 to 807
  223. My Experience with a Jolida 202s (SoFar..)
  224. Cathodyne gain calculator link
  225. Dynakit ST-35?
  226. PSUD modeling old amp PS fails.
  227. Fisher 800 push-pull output stage not symmetrical. Why?
  228. Question of D3a driving 300B
  229. old console amp
  230. st35 vs millett DCPP vs tubelab simple SE
  231. New Tim Mellows OTL project
  232. Melted my mains transformer - Where to find replacement ?
  233. Strange.................
  234. Effect of high mains voltage?
  235. Kent SL 21 Tube head need help!!
  236. Hexfred or SIC rectifiers in choke supplies
  237. 'Strange' bass boost with impedance transformer
  238. Did my tubes go south ?
  239. Use of Tango NN-600-600 Transformers ?
  240. Anyone have an explanation for break(burn)in
  241. The Right Tube & TRannie
  242. 6SL7 / 6SN7 Phono
  243. Tube integrated amp in China.
  244. Power supply issues with Borbely style 12AU7/MOSFET hybrid
  245. heater elevation ground point
  246. Edison 12, can anyone help?
  247. Delay B+ using relay?
  248. New Schematic Linestage Tube Preamp using EF86 & 12AX7
  249. Phonostage (WAD clone) and 12B4A Preamp Build
  250. Interstage coupling feedback

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