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  1. silvertone organ amp conversion. 4704
  2. Impedance bridging
  3. Philips AG-9016 frequency range?
  4. fuse voltage rating?
  5. Grounding issue between turntable and tube amp
  6. Great sounding KT88 amp?
  7. Designing a Gomes i/v stage for tda1541a
  8. choke input power supply
  9. Need Help with New Amp Build, Ugly signals
  10. Amplifier Saftey
  11. Cary SLM100 question (older brand)
  12. 6n18p 6n1p 6n2p project needed
  13. Heater wiring idea?
  14. 300B Amp Testing
  15. New amp build
  16. Bamboo chassis 6P3P SE
  17. 6N23P-EB SRPP DAC output stage.
  18. Packard Plamor Schematic needed
  19. Hickok 600A
  20. Opinion; Alternate input tube socket
  21. Very Simple Attenuator For Audio Card
  22. Switchable PI, Paraphase,Cathodyne, LTP.
  23. Hmm... 4-1000As
  24. Bootstrapped anode
  25. Selecting the correct output transformer/primary impedance
  26. Caddock MK-132 or Mills MRA-12 as plate R?
  27. Minimum rating for stepdown transformer
  28. 6L6 Dared VP-20 issues
  29. Potentiometer Desigations/Codes
  30. 6L6 SE Tube Amp Kit on eBay... opinions?
  31. Building a VT46/PT25H PP amp
  32. Help choosing Sweat Peach FU50 or KT100
  33. New FM-3 Boards
  34. Unity-Coupled amp project
  35. Rectifier injecting noise into heater supply
  36. Tube base failures
  37. 1624 as DHT triode outputs
  38. Will this 2 stage DC DHT cct idea work?
  39. Help with Output Transformer
  40. multi cap verses add on power supply board
  41. 6AS7 hybride CCS
  42. Decware Zbox - looking for Tube buffer mods to reduce buzz
  43. Decware Zbox - looking for Tube buffer mods to reduce buzz
  44. Eico-ST-70 Advice
  45. Choosing Btw 2 EL34 China Tube Amps
  46. Looking for the GA article.
  47. Tube amp left ch. hum
  48. Did i model this PT correctly(psud2)?
  49. Help with the modifications of my tube-amp
  50. detailed photos of RH 84 build?
  51. heathkit aa-191
  52. Which KT-88 tube?
  53. 10m45s cascode diagram?
  54. What amp can make use of these large caps?
  55. Leslie 720 used with stereo keyboard
  56. Tube testers : sorting out settings for the Jackson 648
  57. Question about Shishido 2A3
  58. A micro-programmable tube tracer/tester
  59. amp with the FD422
  60. ST-35 C-1 Capacitor on PC-13 board.
  61. Transformer winding examples!!!!
  62. sansui sm-33
  63. How to mod ASL MG OTL 32 DT?
  64. 300b problem
  65. Audio Research M100s
  66. E83CC in PI or Preamp
  67. Current Dumping Amplifier
  68. Quicksilver 8417 Bias
  69. PtP wiring: Solidcore unshielded cable
  70. Removing a motor from a tube turntable.
  71. Why do I go to hamfests?
  72. Circlotron Amplifier Advice Needed
  73. Traces inside tube?
  74. Hybrid for Zobsky
  75. help identifying telefunken tubes
  76. 5U4GB Tube Power Supply Schematic
  77. Copland CTA-401 - early layout ?
  78. AVO CT160: Testing dual triodes
  79. Need to run heaters in output tubes, remove plate and screen safe?
  80. 1AG4 Direct Heated Pentode, Output
  81. grid stopper and grid choke on pentode input
  82. Has anyone tryied the GuiGuang 300B?
  83. Honeywell Mercury Tube?
  84. Tube audio-phoolery -- more teats on bulls
  85. Strange tube
  86. Adding a Headphone output to my amp.
  87. 6CG7 Phono/ linestage
  88. RH84 Build from old Dumont console
  89. 6N16 12x preamp srpp/cathode follower with printed circuit board design.
  90. Long Tail Pair
  91. Hickok 752A 5AR4 rectifier test?
  92. Shunt Capacitance in Output Transformer
  93. LTP vs single first stage
  94. 6n23 v. 6dj8 v. 6fq7
  95. newer than noob looking for advice on RH84
  96. 300B failed again
  97. No output transformer tube amp
  98. curious about a curious connection
  99. tube crossover project - http://www.pmillett.com/tube_active_crossover.htm
  100. My new "vintage" tube radio
  101. help designing 6L6G S.E. amplifier
  102. SVT output iron as single ended
  103. is 6s2p actually equiv to 8532?
  104. Grundig H&B 6007 tube power supply - Repair or gut for parts?
  105. Quad 22 stereo balance/ filter problem
  106. KR 2A3: problems?
  107. Philco F-1801
  108. KT88 Stereo Schematic and help
  109. Where should I connect ground reference for heater supply?
  110. Chassis size and layout question
  111. May tubes amps
  112. 12SX7 coin base tubes? Fake?
  113. Toroidal transformer on tube amp
  114. Current Mirrors in a balanced preamp
  115. Half-mu stage (or SRPP) w/6DJ8/6922/ECC88 tubes at Low B+ voltage?
  116. High-end Tube amp kits (all-included)
  117. High Current Maida
  118. High Current Maida
  119. Balanced tube preamp schematic or kit?
  120. Trying to find tube component supplier, lost webite ...VT42.com or something like it.
  121. 2A3 PP Can my OPT do the job?
  122. 1626 / 6j4 tube amp
  123. suggestions for driver tube for 2A3
  124. Does anyone know the specs for this Chinese pentode
  125. SiliconRay Kits
  126. Advice needed for hum reduction
  127. low voltage dc tube phase splitter/12AU7
  128. Damper rectifier tubes & voltage doubler
  129. Overheating Resistors on DAC board- "HELP NEEDED"
  130. opt primary inductance and secondary load
  131. SOS-HELP-AIDE-HILFE on " DAC dilema"
  132. Transformer Mounting Direction
  133. HELP! new to working on tube amps and need help with project im going to take on
  134. Fisher 500c radio hum
  135. Modify Power supply for Tube Amp
  136. Unusual amps..
  137. Anyone make a guitar amp from an EA-3?
  138. Help with Preamp/Amp hum
  139. Question about step up in 300B PP amp
  140. How do we reach PMillet?
  141. Please help me with a few questions and a idea for an old PA
  142. nos 5y3wgt in 5e3
  143. Edcor CXSE25-8-2.5K single ended UL transformer
  144. Voltseconds ccs for the K-12 kit
  145. The Torpedo Parafeed Headphone Amplifier
  146. Tube Rectifiers do sound different
  147. 6922, a 6DJ8 replacement??
  148. QB2/250 amplifier
  149. WE 350B and 311A
  150. Single ended 300b's
  151. More power!
  152. How the magnetic affect the sound of tube amplifier
  153. Valves replacement for Copland CT402
  154. Changing valve damage
  155. Tube phono preamplifier by 12ax7
  156. Altec 353A oddity
  157. I need to lose that Hummmm
  158. Reduce B+ with zener
  159. Old Marshall plexi clone problem
  160. triode and pentode 6v6 in parallel
  161. How to make mic input transformer 150:50KCT for mic tube preamp???
  162. Webcor 12AU7 is it a Mullard?
  163. Everett AO48
  164. Resurrecting old tubes
  165. Lumley ST70 Output impedance change and other questions
  166. AC Heater reference to B+
  167. Two tube class a2 se trioded el84 with 12dw7 cathode follower driver?
  168. Overly complicated 1.6A CCS Heater Supply
  169. Hibryd amplifier with tube/valve ECC88 (PCC88) and chipamp LM1875
  170. Tube/Valve buffer with ECC88
  171. High(er) gm octal pentodes?
  172. Shielding Characteristics of Copper Clad PCB
  173. Starting a Meixing MC34-A07 modification project
  174. 6V SLA Dropping resistor for a 5VDC Filament Supply
  175. Wind (Thermionic?) noise, and other strange sounds
  176. Suggestions for an tube-amp with KT88
  177. SE-100 Golden Tube Audio - REPAIR
  178. Power amp vs preamp topology
  179. EL34 Characteristics for Ug2 400V
  180. old Heathkit amp
  181. Toroid OPT for 300B
  182. Help: Connecting two Fluke meters in series
  183. Preamp Volume Controls
  184. Output SE Transformer Question
  185. Vintage electrolytic capacitors
  186. Silver bearing grease for tube sockets
  187. Should I try adding a small Tube Preamp to a DTA-100?
  188. IS 6N6P A DIRECT REPLACEMENT FOR ECC88CC ?
  189. Dynaco stereo 70 look alike
  190. Vacuum Tube factory: For Sale!
  191. Does anybody know anything about this German console
  192. Heater dillema for multi chassis phono stage.
  193. Q: lifespan of JJ ECC99 tubes
  194. Cold solder joint?
  195. Input Impedance/Buffers
  196. Old capacitors..Comments..
  197. Shizuki capacitors?
  198. Spectrum Analyzer: What to get ? What to look for in a spectrum analyzer ?
  199. Amperex Orange Globe 12ax7 ,Brimar cv4004
  200. Question about transformer lamination stacking techniques
  201. line preamplifier with 6c10
  202. Homebrew Toroidal Output Transformer
  203. Line output tube
  204. MJK's SSSchadeode
  205. Any one know were to buy the fu-80 tube?
  206. Maida Regulator PCB
  207. Suggestions for 7k output transformers.
  208. Help: Fluke 87V Meter Calibration
  209. Searching for Primaluna Prologue Three schematic
  210. JCM Build - Hum and Crackle
  211. Silvertone radio to Guitar Amp conversion question.
  212. Pentode Regulation Question
  213. pentodes with CCS load?
  214. Are these tube PCBs any good ?
  215. china 6L6 SEdiy
  216. What are your opinions of the ST-70 and St-120
  217. Baffle Step Compensation Tube Circuit
  218. 6L6 to 7027 cathode resistor value
  219. PCB to mount snapmout electrolytic capacitors
  220. Dared MC-7P Upgrades
  221. adapter to go from 6L6 to 807
  222. My Experience with a Jolida 202s (SoFar..)
  223. Cathodyne gain calculator link
  224. Dynakit ST-35?
  225. PSUD modeling old amp PS fails.
  226. Fisher 800 push-pull output stage not symmetrical. Why?
  227. Question of D3a driving 300B
  228. old console amp
  229. st35 vs millett DCPP vs tubelab simple SE
  230. New Tim Mellows OTL project
  231. Melted my mains transformer - Where to find replacement ?
  232. Strange.................
  233. Effect of high mains voltage?
  234. Kent SL 21 Tube head need help!!
  235. Hexfred or SIC rectifiers in choke supplies
  236. 'Strange' bass boost with impedance transformer
  237. Did my tubes go south ?
  238. Use of Tango NN-600-600 Transformers ?
  239. Anyone have an explanation for break(burn)in
  240. The Right Tube & TRannie
  241. 6SL7 / 6SN7 Phono
  242. Tube integrated amp in China.
  243. Power supply issues with Borbely style 12AU7/MOSFET hybrid
  244. heater elevation ground point
  245. Edison 12, can anyone help?
  246. Delay B+ using relay?
  247. New Schematic Linestage Tube Preamp using EF86 & 12AX7
  248. Phonostage (WAD clone) and 12B4A Preamp Build
  249. Interstage coupling feedback
  250. Just received a Yaqin MC-10T and have a couple of questions.

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