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  1. Moderm "high watt" resistors seem too small
  2. Thyratron based emergency switch?
  3. vT4C.com out of business....
  4. Maggie 8802 6V6
  5. Need Counterpoint SA-3 Board Photo
  6. Diodes in a Graetz Hybrid
  7. Tube Noob with a few questions
  8. KT88 Push Pull Idea... Questions
  9. Superior Instruments tv11 restore question?
  10. Superior Instruments tv11 restore question?
  11. Frequency Response of Output Tubes
  12. symptom of a dying (gain) tube
  13. Grounding in monoblock amps
  14. Seeking 6ME5 data and connection diagram
  15. 12BK5 UL tracing gone boosted triode?
  16. Difference between OPT
  17. Tweaking PP AMP Suggestions Please
  18. DC coupled Sand 'n Glass with Current Feedback
  19. Yaqin 100B fire and spares
  20. Pls help with a preamp
  21. Questions about Aikdo all in one octal
  22. Did I get used to my amp's sound?
  23. Michaelson and Austin TVA1 revB
  24. Joy of birth - a new preamp brought to the world
  25. 5U4G
  26. 6N6P best musicality? Help with modes.
  27. Identifying this capacitor in my Cayin TA-30 amp
  28. GU50 Push-Pull version1
  29. Common mode feedback
  30. Stuck with repair ;(
  31. active hum cancellation. PCB idea?
  32. Why this huge cap is so light?
  33. OPT performance
  34. Capacitor WVDC. is higher really better?
  35. Tung Sol ECC803S reissue - thumbs down
  36. Biasing Marshall 9200
  37. In a search for a 6CG7 line stage schematic
  38. Output stage for a Mono FM tube tuner
  39. Want to use El Cheapo P.I. for Scott LK72 rebuild
  40. Ansar caps
  41. TO220 isolation kits breakdown
  42. Schematic for Sony TC-200 tape unit
  43. HV power supply with serial chokes
  44. no logo on tube
  45. Tango XE-20-600S SE OPT for preamp ?
  46. RF Voltage Amplifier
  47. Anyone deal with psvane member here?
  48. Op Amp
  49. Imbalanced LTP using 6922/E88CC
  50. OPT choice for PP1C
  51. Drawing software for P2P layout?
  52. A hybrid amplifier with PCC88 and IRFP240/9240
  53. ARC D-75A Regulator tube
  54. cap upgrade worth it?
  55. valve/tube output transformer construction
  56. 300B (or other DHT) biasing options
  57. Cathode Bypass Capacitor concern
  58. Phase splitter into push pull front end - possible?
  59. Question on push-pull OT LEads
  60. Importance of Screen Voltage of Pentode???
  61. measuring dc offset in OTL headphone amp
  62. Seeking comments on Russian KBG-MN for PS
  63. Joe List Archive
  64. grundig tk45
  65. Grid bias - sound quality of battery or PSU?
  66. Help: Western Electric 418A tubes wire in triode ?
  67. Scott 355 Tuner-Preamp
  68. 6550 internal resistance hit parade
  69. Max anode voltage and srpp/aikido amps
  70. Effect of IERC coolers on SQ
  71. Tube standoff ?
  72. YAQIN MS-650B vs Yarland PRO 845 mkIV ?
  73. New Harman Kardon Citation II
  74. Conrad johnson Preamp Volume
  75. What's the benefit of dual NFB?
  76. Over-Spec'd PT as replacement.
  77. pp KT88, IT phase splitter
  78. ID this for me?
  79. 12AX7 in starving mode Dynaco PAS3X
  80. YAQIN MS-22B. Any thoughts, please?
  81. Heathkit A7E phono section
  82. Dyna-Quik 500
  83. Driving balanced outputs
  84. Primary current feedback - any good? Help!
  85. 3C30 tube...datasheet...help !!!
  86. LEDs on input valve cathodes
  87. Help with Conrad Johnson
  88. Output Transformer Power Rating Question
  89. Little piece of glass in tube.
  90. ASL Preamp Help
  91. Start to Salivate - My Tube Amp Candidates - Your thoughts welcome
  92. Citation V OPT Diagnosis/Question...
  93. Cossor BT185 Beam tetrode
  94. Using a non-bridge (2 diode) full wave rectifier in bias supply.
  95. Amp making phase shifter noise
  96. Help, Amp distortion after on/off/on???
  97. TDO 5w resistors?
  98. Audio Research Dual 75 - Low Bias
  99. 6N3 SRPP + 6N5P Cathode Follower HPA Testing
  100. 6N16 headphone amplifier
  101. 5k plate to plate, el34 triode strapped, 400v b+
  102. russian penthodes 6J2P-EB and 6J9P.
  103. mA meter drags the circuit down
  104. Valve stage coupling capacitor leakage?
  105. Carvin Transformer
  106. Modifying the Lowther Club HK Jazz 6L6 ($449 SET amp)
  107. RCA 6V6PP amp schematic (Schade fb)
  108. 25W Class A Hybrid Amp
  109. ECC82/12AU7 Line Preamp
  110. help testing gz32 gz34
  111. A BeamKido?
  112. Zeners and voltage regulation
  113. A2 positive bias push pull possible?
  114. EL34 burn out on Yaqin MC10T
  115. input transformer and impedance question
  116. Options for 300mA tube rectifiers
  117. Electrical flow
  118. 5AR4 @ 250mA
  119. newbie with a choke question
  120. ROCKOAL JUKEBOX 1458
  121. Who can help to recognize this tube preamp?
  122. DIY High power Audio Amplifier from Heathkit SB200
  123. ECL82 amplifier help
  124. 6146B SPICE model wanted
  125. how to install a bias meter in a cathode bias amp
  126. Stuck... Output tube for Single ended?
  127. Aikido Octal Headphone amp
  128. silvertone organ amp conversion. 4704
  129. Impedance bridging
  130. Philips AG-9016 frequency range?
  131. fuse voltage rating?
  132. Grounding issue between turntable and tube amp
  133. Great sounding KT88 amp?
  134. Designing a Gomes i/v stage for tda1541a
  135. choke input power supply
  136. Need Help with New Amp Build, Ugly signals
  137. Amplifier Saftey
  138. Cary SLM100 question (older brand)
  139. 6n18p 6n1p 6n2p project needed
  140. Heater wiring idea?
  141. 300B Amp Testing
  142. New amp build
  143. Bamboo chassis 6P3P SE
  144. 6N23P-EB SRPP DAC output stage.
  145. Packard Plamor Schematic needed
  146. Hickok 600A
  147. Opinion; Alternate input tube socket
  148. Very Simple Attenuator For Audio Card
  149. Switchable PI, Paraphase,Cathodyne, LTP.
  150. Hmm... 4-1000As
  151. Bootstrapped anode
  152. Selecting the correct output transformer/primary impedance
  153. Caddock MK-132 or Mills MRA-12 as plate R?
  154. Minimum rating for stepdown transformer
  155. 6L6 Dared VP-20 issues
  156. Potentiometer Desigations/Codes
  157. 6L6 SE Tube Amp Kit on eBay... opinions?
  158. Building a VT46/PT25H PP amp
  159. Help choosing Sweat Peach FU50 or KT100
  160. New FM-3 Boards
  161. Unity-Coupled amp project
  162. Rectifier injecting noise into heater supply
  163. Tube base failures
  164. 1624 as DHT triode outputs
  165. Will this 2 stage DC DHT cct idea work?
  166. Help with Output Transformer
  167. multi cap verses add on power supply board
  168. 6AS7 hybride CCS
  169. Decware Zbox - looking for Tube buffer mods to reduce buzz
  170. Decware Zbox - looking for Tube buffer mods to reduce buzz
  171. Eico-ST-70 Advice
  172. Choosing Btw 2 EL34 China Tube Amps
  173. Looking for the GA article.
  174. Tube amp left ch. hum
  175. Did i model this PT correctly(psud2)?
  176. Help with the modifications of my tube-amp
  177. detailed photos of RH 84 build?
  178. heathkit aa-191
  179. Which KT-88 tube?
  180. 10m45s cascode diagram?
  181. What amp can make use of these large caps?
  182. Leslie 720 used with stereo keyboard
  183. Tube testers : sorting out settings for the Jackson 648
  184. Question about Shishido 2A3
  185. A micro-programmable tube tracer/tester
  186. amp with the FD422
  187. ST-35 C-1 Capacitor on PC-13 board.
  188. Transformer winding examples!!!!
  189. sansui sm-33
  190. How to mod ASL MG OTL 32 DT?
  191. 300b problem
  192. Audio Research M100s
  193. E83CC in PI or Preamp
  194. Current Dumping Amplifier
  195. Quicksilver 8417 Bias
  196. PtP wiring: Solidcore unshielded cable
  197. Removing a motor from a tube turntable.
  198. Why do I go to hamfests?
  199. Circlotron Amplifier Advice Needed
  200. Traces inside tube?
  201. Hybrid for Zobsky
  202. help identifying telefunken tubes
  203. 5U4GB Tube Power Supply Schematic
  204. Copland CTA-401 - early layout ?
  205. AVO CT160: Testing dual triodes
  206. Need to run heaters in output tubes, remove plate and screen safe?
  207. 1AG4 Direct Heated Pentode, Output
  208. grid stopper and grid choke on pentode input
  209. Has anyone tryied the GuiGuang 300B?
  210. Honeywell Mercury Tube?
  211. Tube audio-phoolery -- more teats on bulls
  212. Strange tube
  213. Adding a Headphone output to my amp.
  214. 6CG7 Phono/ linestage
  215. RH84 Build from old Dumont console
  216. 6N16 12x preamp srpp/cathode follower with printed circuit board design.
  217. Long Tail Pair
  218. Hickok 752A 5AR4 rectifier test?
  219. Shunt Capacitance in Output Transformer
  220. LTP vs single first stage
  221. 6n23 v. 6dj8 v. 6fq7
  222. newer than noob looking for advice on RH84
  223. 300B failed again
  224. No output transformer tube amp
  225. curious about a curious connection
  226. tube crossover project - http://www.pmillett.com/tube_active_crossover.htm
  227. My new "vintage" tube radio
  228. help designing 6L6G S.E. amplifier
  229. SVT output iron as single ended
  230. is 6s2p actually equiv to 8532?
  231. Grundig H&B 6007 tube power supply - Repair or gut for parts?
  232. Quad 22 stereo balance/ filter problem
  233. KR 2A3: problems?
  234. Philco F-1801
  235. KT88 Stereo Schematic and help
  236. Where should I connect ground reference for heater supply?
  237. Chassis size and layout question
  238. May tubes amps
  239. 12SX7 coin base tubes? Fake?
  240. Toroidal transformer on tube amp
  241. Current Mirrors in a balanced preamp
  242. Half-mu stage (or SRPP) w/6DJ8/6922/ECC88 tubes at Low B+ voltage?
  243. High-end Tube amp kits (all-included)
  244. High Current Maida
  245. High Current Maida
  246. Balanced tube preamp schematic or kit?
  247. Trying to find tube component supplier, lost webite ...VT42.com or something like it.
  248. 2A3 PP Can my OPT do the job?
  249. 1626 / 6j4 tube amp
  250. suggestions for driver tube for 2A3