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  1. Spud anyone?
  2. Nooo! Almost have this amp built!
  3. Need help - Old cap can ID
  4. 16SL7+6SN7 Aikido
  5. Anyone have a Bogen MX 60 Schematic they can post
  6. mc100b burned up
  7. DC heating, parallel diodes
  8. Identify Amperex Tube?
  9. Which speaker tap when going from UL to triode
  10. Tube wont bias...
  11. DIY stepped attenuator
  12. TV-7/DU KT88 Settings?
  13. Filmosound - Tone Knob - Tertiaries
  14. Hybrid Amp, Tube+MOS FET SE
  15. 3.1 integrated possible?
  16. Plate choke material, why to use amorphous core?
  17. Anything obviously wrong with my mic pre amp ?
  18. K-502 or Yamaha RX-V361 for Klipsch F-1?
  19. Help diagnosing phase-splitter
  20. question about Bruce's GGP preamp
  21. interpreting max. values listed in datasheet
  22. zenith mlt 15 console record player problem
  23. ORIENTED or Not ORIENTED cores for OPT
  24. Audio Research SP-3-A-1 modified.........
  25. Tube heaters in series.
  26. Output transformer listening impressions?
  27. Tube buffer 6H6P after a DAC
  28. S-5 K16LS in enclosure - Pics
  29. Time to mourn the death of Broskie's Tube CAD blog?
  30. 6N6P preamp
  31. our Preamplifier using 2J27S tubes
  32. dc filament design question
  33. 6AV6A for meter driver
  34. AC wiring heaters, A or B ?
  35. Aikido preamp muting
  36. Help! New Yaoin MC-100B with intermittent crackling noise from speakers
  37. hummming YAHA
  38. leave a variac on all the time!
  39. More triodes
  40. Full Wave Rectifier
  41. Blowing B+ fuse
  42. PSRR of CF w/ CCS Sink
  43. MENG Series "EL34B" Integrated Amplifier
  44. Concertina Parafeed, or How to mess with OldEurope's mind...
  45. Phono stage success!
  46. A few pretty pictures and an ugly picture
  47. Rectifier with slow start up?
  48. Calibrating an emission tester
  49. What is this?
  50. 4XKT88 drive
  51. EL84 driven 2a3
  52. need suggestions for "standarizing" tube gain stages
  53. How long until someone tries
  54. Common Audio Tubes in standard use
  55. tango input transformer NN-6
  56. Filmosound dual pot
  57. Hi power Moskido with A/B output Bias
  58. how easy to make tube amp?
  59. metal film resistors or carbon?
  60. Quad II tubes replacement
  61. Sirius & FM
  62. Can someone look at a Counterpoint SA7 for me?
  63. The Wintersweet High-Vividity Project
  64. loftin white 801 amp
  65. Pics of unique design of amp chassis?
  66. Heathkit AA-32 modifications / upgrades
  67. Tango XE-20S Specification
  68. Question about Edcor output transformer
  69. SE EL84 output stage?
  70. New ST-70 Driver board from Blackburn Audio
  71. Transformer primary rating question
  72. Heathkit A7(c?) Rebuild
  73. Rewiring a socket to take 6GK6 instead of 6BQ5
  74. 317 CCS Question
  75. Active filter design software
  76. Larry Moore 10Y Squared
  77. Do you hear “pop” when you turn off your amp?
  78. Simple tube phono stage
  79. Tube phono amp repair/redesign help wanted
  80. tube newbie needs guidance
  81. Interesting linestage optimizing ideas
  82. Powered up my Lafayette 224A for the first time!
  83. Passive BP filter sim results
  84. 100mA heater tubes for phono
  85. Audiotester + M-audio - info + question
  86. Indestructible HV hybrid regulator!
  87. yet another modified 5-20 amplifier
  88. help with OT for 15 watt tube amp
  89. Power supply for 12SL7 phono preamp
  90. few questions
  91. mystery 5881
  92. does lower B+ cause scratchy distortion?
  93. SY please keep us updated about your site
  94. Cleveland Ohio members?
  95. Scope tricks for detecting rectifier/choke switching
  96. To choke or not to choke
  97. Tube rectified LC PS for 6SN7 Aikido - choke DCR question
  98. Convergent Audio Technology (CAT) SL-1 preamplifier
  99. Very low current CCS?
  100. Morgan Jones' E88CC Phono
  101. pse help, unity µ triode as a phase inverter
  102. variable capacitor volume control
  103. What to do with P-P transformer ?
  104. 837 tube for SE Amplifier
  105. calculating transformer current draw question
  106. glass audio 1995 "Single Ended Glory"
  107. Manual for Heathkit AA-121 Power Amp
  108. Low gain triode recommendation plz
  109. Output transformer impedance question
  110. Choke... The side makes difference?
  111. Fostex Meets Pentode I need some NFB
  112. Oddball Sweep tubes in PP
  113. big doubt: dynakit st35 VS diytube st35clone
  114. Noob - where to start?
  115. Compactron Output Tubes
  116. XPP amp
  117. Getting only 400 hours on Class A2 PP tube
  118. Pete Millett's 829B amp -> monoblocks
  119. 6JU8A Spec confusion
  120. post on amp design by a newbie
  121. (INDIA) ECC802S/EL84 build, hardware requirements
  122. 6gw8 /ECL86 El Cheapo modifications
  123. Danielak's 300B design
  124. 6080 @ 800µA Question ...
  125. Groundplane layout theory
  126. delay on for 83 mercury vapor
  127. Anyone tried "Weber Copper" SS rectifyers?
  128. Scored a bunch of tubes at HamCon
  129. AB2 Anyone else done similiar
  130. 6v6 pp amplifier
  131. Loud 60 cycle Hum from tube amp.
  132. Building a Preamp
  133. another Big One....:)
  134. JJ factory pictures ...
  135. Good enough CFs
  136. What's a good way to clean tubes w/o taking off the labeling?
  137. 6BX7 or 12B4A for small SE amp?
  138. Schematic collection posted by a kind soul...
  139. Dumb question, but...
  140. Zen Quad 22
  141. I'm baffled -- 6AK6 push-pull amp
  142. pin count question
  143. 1G3 Max Dissapation?
  144. Edcor Transformers
  145. 12EL6 preamp
  146. Request for EICO HF-20 experiences and ideas
  147. So would this work?
  148. Small-signal (or small power) pentode that can handle 400V (or more)?
  149. Are 6GM8's rare?
  150. How to lower mains voltage using resistors
  151. Music angel XD-SE EL34
  152. Potential project for some inherited transformers
  153. Car Tube Amp?
  154. Marantz 7 Preamp
  155. Euridice pramp but with 45
  156. Can 6AK6's take high voltages?
  157. Tube equal to one section of a 12AX7?
  158. HK 'Deuce front end on G2 drive output stage?
  159. Direct-coupled cathode/source follower driver in PP?
  160. CCS power supply loading..
  161. Buying vintage good tubes
  162. current tube manufacturers and or brands
  163. PSU with TL783-question
  164. Hashimoto H-20-7U for 6v6 in triode SE..?
  165. Speakers impedance
  166. mesh plate el34 (supereTNT)
  167. Tagboard amps
  168. Built the DDDAC MKII USB audio card, modified it to feed SRPP tube amp line stage
  169. 6CL6 vs. 12BY7A
  170. Suggestions for a good tube line amp
  171. 12el6
  172. High Squareness Ratio of a Transformer
  173. What causes a tube to crack?
  174. Ming Da MC-7R transformers for Quad 22 clone.
  175. SimpleSE and Switches
  176. Bias and distortion 6EM7
  177. Need ideas - 6L6GA & 6X5GT
  178. Firestone Air Chief
  179. Zenith Console find, amp suggestions?
  180. 5842 russian equiv 6S45P or 6C45PI ?
  181. bizarre or good topology idea?
  182. 12 EL6 car preamp
  183. Waxy substance leaking from vintage OPT
  184. Output transformer protection fuses
  185. 5670 SRPP DC coupled to 6S4A
  186. L as last filter element?
  187. Strong cigarette smell in a tube amp
  188. Gas coupling?
  189. Differences between nos Tesla E88CC?
  190. Harmonic parrot food?
  191. Modified 6V6 amp, 350 volt @ 250 K HZ output
  192. best current production el34
  193. Help for correct grounding a Dared VP-845
  194. two 6AL5s as a bridge rectifier
  195. JFET Switching on my tube amp
  196. Leak / Dynaco DIY
  197. S-5 tube amp kits
  198. I wanna build a CHEAP mono tube amp, need advice....
  199. 12ax7
  200. Testing for tube shorts
  201. KT66 alternatives in Quad II amps?
  202. FOR TUBE: 350V High Voltage Regulator
  203. what guideline to match pre and amp?
  204. New to list and 300B amp kits
  205. Primary impedance output transformer
  206. isolation transformer
  207. Cloning transformers
  208. EAR509
  209. Schematics of potential interest
  210. super capacitor for dc heater
  211. Need a kit ??
  212. Edcor XSM10K/15K like intestage in tube SE ?
  213. Does anyone know of an LTSpice model for 12B4?
  214. where to order V-Cap ?
  215. Input Volume Pot
  216. Red Army Power-amp
  217. Cloning a HF-60
  218. Michaelson & Austin TVA-1 info
  219. analyze a circuit...quiescence current and R-Load
  220. how to calculate SE Coupling Cap Voltage ?
  221. Mullard ECC88
  222. Engineering vs tube rolling
  223. Diode Peak working voltage ?
  224. Help wanted; combining topologies to "new" 807 PPP design ?
  225. Hybrid Amp
  226. transformer information need help
  227. Replacing a cathode resistor with a CCS
  228. DC offset and relays
  229. Sourcing JJ 300B tubes
  230. Decware Vs Rogue Audio
  231. Global Feedback on Mikael's KT88SE
  232. Generating big voltage swings without 'iron'
  233. 6AS7G Grid Voltage ??
  234. Next project 6EM7
  235. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  236. What to replace these caps with?
  237. 5691 plate value ratings
  238. Bussiness trip to Singapore
  239. Paco mike tube amp
  240. Emergency help with Wes' amp
  241. 2A3 without cathode bypass cap???
  242. Best way to burn-in my new SE xfrmers on the bench?
  243. Need help with my ST70
  244. 6sn7 direct coupled and transformer coupled
  245. Grounded Grid Preamp
  246. Beginner WLTM fixer of 300B hum...
  247. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  248. How to figure gain on split-load with positive feedback?
  249. Mikaels KT88SE & VTV Octal Linestage
  250. idiot needs help making sense of funny squigles - Filmosound

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