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  1. Modelling a DC filament supply in PSU Designer II
  2. 12AX7 Preamp NOOB Question
  3. Adding aux input on a tube console
  4. one safety question
  5. E1148,CV6-How do you distinguish the anode/grid caps?
  6. Strange DC choke behavior
  7. Subwoofer out question.
  8. Tube 6N3 use pre for ChipAmp
  9. Hammond 1650W
  10. separating PSU for preamp
  11. sca-35
  12. A 6.3V regulator delivering 2.8A...?
  13. 6K:8 25W SE OPT, now what tube should I use?
  14. EL84 fixed bias PP Triode
  15. Tube Amp Kit Suggestions
  16. TT21 Vs KT88
  17. One-Electron PRC chokes as PS input choke?
  18. Magnavox 135BB
  19. Is there much point in tube preamps? (This isn't a troll)
  20. How does one determine saturation point of triode or pentode
  21. Help - 807 Technical problem
  22. woooohooo!!! 3 working el84 SEs
  23. westinghouse model 80 radio - eval for parts?
  24. Bogen J130 PA schematic
  25. Better Cap = Better Sound?
  26. Pilot SA 260 bias
  27. 12AX7 gain stage output impedance
  28. Small 1W hifi amp
  29. Tube Radio - What are G & F Terminals?
  30. Has anyone seen this?
  31. how would you Parallel a 12ua7 tube
  32. Tube mod a HT rcvr?
  33. how would i series a 12au7a
  34. does some have distortion schematics for 12au7a
  35. triode strapped tetrode
  36. 6F6G UL Amplifier
  37. Build a VT100?
  38. turrets for tube PC driver board needed
  39. Mikael Abdellah's kt88, (LOADLINES)
  40. piezo amp discussion on loudspeaker forum
  41. Balanced interconnect to differential amp - how would you do it?
  42. Ebay Tube Preamp Kit
  43. Kiwame resistors
  44. Mains isolation - would this work?
  45. 6CA7 Mikael Abdellah's KT88 SE amp?
  46. Tube heaters AC or DC?
  47. Question about system design with the K-12
  48. CCS on SE 2A3 cathode
  49. Saucepan Amplifier
  50. Rectifier query
  51. Fisher 400c
  52. Hum Problem
  53. Shanghai: please recommend some audio shops
  54. Calculating max Anode Voltage
  55. One thought about improved Single Ended amplifier
  56. low distortion sweep generator - not a PC
  57. Any articles on how to bias correctly
  58. Max dissp of EH 6sn7
  59. Switched Capacitor Impedance Converter
  60. Chinese Output transformer for 300B SET
  61. Is a VTVM useful?
  62. Permanent thread name proposal
  63. Loctal Rectifiers
  64. Silk Transformers
  65. Gain Q
  66. What cable between PSU and Amp?
  67. luxman mq 36 schematics
  68. Nonstandard tubes for audio? Quadrature grid chorus effect?
  69. Parts assortments sold with organizer
  70. Re-Gapping OPT
  71. I want to begin but I don't know how!!!
  72. Ultralinear with zener on the screen
  73. ReSEPP Design: 5 Tubes 4 Natural Sound
  74. Chinese Tube Amp?
  75. Ampex 351 - Mic pre
  76. Another ground question
  77. for the life of me
  78. Front Panel Express finishes
  79. transformer spec
  80. diode bridge - 10000uF cap - diode tube - small cap - HV+
  81. passive components affected by magnetic fields?
  82. Help on Pentode Octal Phono Stage (POPS)
  83. Cascode gain. Did I do something wrong?
  84. Bad Tube in my "new" Hammond C2 Organ preamp? HELP w/ diagnosis!!
  85. Need tube data for 10Y
  86. Bending aluminum?
  87. Does anyone recognise this 12AU7?
  88. Phase splitting--how does it work?
  89. Construction technique?
  90. function generator
  91. Ceramic or Magnetic with new preamp?
  92. Melos Triode 200 fuses
  93. Fantasia Disney amp
  94. Ella amplifier problems
  95. SE design questions before I start my project
  96. Single stage preamp
  97. Help me to identify unknown tube
  98. PSU Question...Full Wave Bridge
  99. 6as7g Se
  100. Music Angel Modification
  101. 6SL7 Phono Preamp
  102. Grounded Grid Preamp
  103. Formula question
  104. 6N9S different versions
  105. Stoetkit Amps
  106. PSUD question
  107. 6922 -- curing the ultrasonic RIAA blues
  108. Need Help Setting Heater Voltage
  109. Sub-Miniature Tube Amplifier
  110. Burned out power tube
  111. www.agora.lesina.org
  112. suggestions for a rectifier
  113. scott 222 recap issues
  114. Adcom integrated/tube amp project
  115. Auricaps - 400V vs 450V (SimpleSE)
  116. ratings of output transformer???
  117. Class-g / class-h
  118. Cascading gain stages in a tube preamp
  119. OT impedances calculations: where's my mistake??
  120. phase splitting transformers
  121. 6L6 PPP UL amp
  122. g2 driven tubes
  123. Selecting an IT impedance
  124. preamp get a hum when volume is at full or 80% is thier away to stop it??
  125. What can you replace the 12AU7A with???
  126. My 12AX7 zero negative feedback preamp, with measurement
  127. improving the Transcendentsound GGP preamp
  128. Check out my new Phono stage
  129. load line UL v.s. triode
  130. Line-Stage w/ balanced output
  131. Dropped a SIF Ba
  132. RCA logos and boxes
  133. Type 24 or 24a for linestage..?
  134. Line output as line input transformer?
  135. Siemens codes
  136. Moskidos on the way.
  137. Another transformer question
  138. KT88 Push-Pull
  139. 45 -> 813 Interstage
  140. Ulyanov currently manufacturing the 6c33C?
  141. Is PSU Designer II correct?
  142. How much weight can the Hammond chassis hold?
  143. Inner detail, as opposed to?
  144. Power Transformer for 6V6 SE Amp Question
  145. Can this schematic work? 6N6P driver with 6C33C-B OTL
  146. Tube rating
  147. Best driver for KT88 Triode SE.
  148. Unusual tubes to drive a JAN 829B
  149. LTP w/CCS tail and plate loads
  150. EL86 OTL
  151. 300B shootout
  152. Stay tuned for the Pass F4 tube preamp
  153. 6j4 oscillating?
  154. My 6N23P tubes
  155. Tone linestage idea
  156. SimpleSE amp: multiple taps with cathode feedback
  157. 7W enough for 90dB speakers?
  158. Meaning of "hard to drive"
  159. Plate load resistor question
  160. BWD 216a power supply circuit needed, please help
  161. 1st DIY project in a loooooong time
  162. Another AG9016 "addict"
  163. angela EL34 improvement and mods
  164. $120 battery powered tube amp on eBay??
  165. Help with 6AQ5 schematics
  166. 5691 black base?
  167. DIY vacuum tubes!
  168. Replacing 5-pin DIN inputs on a Telefunken Radio? +weird speaker output?
  169. working out Z out for tube with IXYS IXP10M45S plate load
  170. Review of New S-5 K-16LS Kit
  171. Dumb question.
  172. Suggest KT88 Push-Pull schematics, please.
  173. AIKIDO: Main Thread???
  174. 10Y/45 schematic wanted
  175. Dynaco ST-70 Kits Compaired FYI
  176. Mini amp using 12AU7's as power tubes?
  177. Quick question about star grounding
  178. 3K or 5K OPT in EL35 SimpleSE?
  179. Bogen L60 schematic
  180. k-12
  181. Suggestion on tube for CCS
  182. Whats the model for this?
  183. ECL 82 schematic to suggest
  184. Andrea Ciuffoli's KT88 PP
  185. Looking for comments on Welborne Labs PS10 reg. HT supply
  186. Thoughts and suggestions needed.
  187. PSU shunt capacitor selection
  188. Looking for comments in my first 300B project
  189. Transformer Coupling Questions
  190. ECL82 power supply question
  191. CGV-300B Amp Results...Fun.
  192. power transformer rating and tube current - SimpleSE
  193. Ping Drummerwill.
  194. Taking a Hammond 369BX filament winding to the limit?
  195. Speaker connect: Speakon or banana
  196. 50k or 100k output impedance.
  197. Need help remembering the name of a hybrid amplifier design book
  198. Measuring Output Impedance of Power Supply
  199. knob with long end for alpha pots
  200. IT tutorial n selection
  201. Anybody help identify these tubes
  202. CT wire -quick question
  203. New Amplifier
  204. Master Volume for Active Tube Crossover?
  205. Tube lifetime
  206. Raleigh Audio Preamp - somebody heard ?
  207. Mikael Abdellah SE KT88 ideas and questions
  208. Bogen CHB-35 to conversion to B-12/B-15
  209. Melos triode 200+ looking for spare parts
  210. Opinions on integrated amp project
  211. 6AL5 for clipping diodes?
  212. Confusion over Knight 600 tester numbers
  213. 12AU7A: I need fuzz, overdrive and distortion schematic
  214. 12AT7 vs 12AU7 (interchangeable?)
  215. Angela Electronics - Customer Service
  216. PAS visits the naughty side of town (red lit)
  217. Summing at the LTPI
  218. Test of ECC81 to 83
  219. Was this already posted here? Handmade tubes video
  220. Twist dc filament wire?
  221. Power transformer: How Big?
  222. Heater supply options and to Vhk rating of 6X4 & 6203
  223. Hammond 125ESE and sections
  224. 6P15P hybrid amp schema?
  225. Switching voltage converter for HV supply
  226. VT4C output transformer
  227. Sound Multiplex Amp
  228. Suggestions needed for improving Rogers Cadet II PP power amplifier
  229. Adjustable Line out off of Extra Speaker Jack
  230. Transcendere Audio
  231. Wrong capacitors!
  232. 6LW6 operating points
  233. ?? xmer specs for Scott LC 21 or 130 Preamp for rewind...
  234. Loctal 6SN7?
  235. Need some help with simulation
  236. output tranny for 6AK6
  237. What tubes for 7K6PP X-former
  238. Ham radio op makes his own triodes
  239. Newbie looking for some advice on mods and tubes for Cayin TA-30
  240. Power Transconductance Amp with Tubes, How?
  241. using the 6BX7 at low'ish current in Aikido
  242. What preamp should I build?
  243. Transformer hookup question.
  244. Home made vacuum tubes
  245. My New EL84 PP
  246. Hammond power transformer fillament rating
  247. Need help with a Russian Triode
  248. TRAFO NEEDED FOR EL84 pp
  249. Difference between 6JN6 (Berning output) and 6JB6 tubes?
  250. 2A3 SE Amp

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