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  1. Nonstandard tubes for audio? Quadrature grid chorus effect?
  2. Parts assortments sold with organizer
  3. Re-Gapping OPT
  4. I want to begin but I don't know how!!!
  5. Ultralinear with zener on the screen
  6. ReSEPP Design: 5 Tubes 4 Natural Sound
  7. Chinese Tube Amp?
  8. Ampex 351 - Mic pre
  9. Another ground question
  10. for the life of me
  11. Front Panel Express finishes
  12. transformer spec
  13. diode bridge - 10000uF cap - diode tube - small cap - HV+
  14. passive components affected by magnetic fields?
  15. Help on Pentode Octal Phono Stage (POPS)
  16. Cascode gain. Did I do something wrong?
  17. Bad Tube in my "new" Hammond C2 Organ preamp? HELP w/ diagnosis!!
  18. Need tube data for 10Y
  19. Bending aluminum?
  20. Does anyone recognise this 12AU7?
  21. Phase splitting--how does it work?
  22. Construction technique?
  23. function generator
  24. Ceramic or Magnetic with new preamp?
  25. Melos Triode 200 fuses
  26. Fantasia Disney amp
  27. Ella amplifier problems
  28. SE design questions before I start my project
  29. Single stage preamp
  30. Help me to identify unknown tube
  31. PSU Question...Full Wave Bridge
  32. 6as7g Se
  33. Music Angel Modification
  34. 6SL7 Phono Preamp
  35. Grounded Grid Preamp
  36. Formula question
  37. 6N9S different versions
  38. Stoetkit Amps
  39. PSUD question
  40. 6922 -- curing the ultrasonic RIAA blues
  41. Need Help Setting Heater Voltage
  42. Sub-Miniature Tube Amplifier
  43. Burned out power tube
  44. www.agora.lesina.org
  45. suggestions for a rectifier
  46. scott 222 recap issues
  47. Adcom integrated/tube amp project
  48. Auricaps - 400V vs 450V (SimpleSE)
  49. ratings of output transformer???
  50. Reverb insertion losses
  51. Class-g / class-h
  52. Cascading gain stages in a tube preamp
  53. OT impedances calculations: where's my mistake??
  54. phase splitting transformers
  55. Tubelab some simpleSE related Qs
  56. 6L6 PPP UL amp
  57. g2 driven tubes
  58. Selecting an IT impedance
  59. preamp get a hum when volume is at full or 80% is thier away to stop it??
  60. What can you replace the 12AU7A with???
  61. My 12AX7 zero negative feedback preamp, with measurement
  62. improving the Transcendentsound GGP preamp
  63. Check out my new Phono stage
  64. load line UL v.s. triode
  65. Line-Stage w/ balanced output
  66. Dropped a SIF Ba
  67. RCA logos and boxes
  68. Type 24 or 24a for linestage..?
  69. Line output as line input transformer?
  70. Siemens codes
  71. Moskidos on the way.
  72. Another transformer question
  73. KT88 Push-Pull
  74. 45 -> 813 Interstage
  75. Ulyanov currently manufacturing the 6c33C?
  76. Is PSU Designer II correct?
  77. 50c5 push-pull for guitar?
  78. How much weight can the Hammond chassis hold?
  79. Inner detail, as opposed to?
  80. Power Transformer for 6V6 SE Amp Question
  81. Can this schematic work? 6N6P driver with 6C33C-B OTL
  82. Tube rating
  83. Best driver for KT88 Triode SE.
  84. Unusual tubes to drive a JAN 829B
  85. LTP w/CCS tail and plate loads
  86. EL86 OTL
  87. Russian PIO caps. Should I use them?
  88. Fender Twin Reverb VIBRATO PROBLEM - weak vibrato
  89. 300B shootout
  90. Stay tuned for the Pass F4 tube preamp
  91. 6j4 oscillating?
  92. My 6N23P tubes
  93. Dumb question about Twin Reverb speaker load
  94. Tone linestage idea
  95. SimpleSE amp: multiple taps with cathode feedback
  96. 7W enough for 90dB speakers?
  97. Meaning of "hard to drive"
  98. Plate load resistor question
  99. BWD 216a power supply circuit needed, please help
  100. 1st DIY project in a loooooong time
  101. Another AG9016 "addict"
  102. angela EL34 improvement and mods
  103. $120 battery powered tube amp on eBay??
  104. Help with 6AQ5 schematics
  105. 5691 black base?
  106. DIY vacuum tubes!
  107. Replacing 5-pin DIN inputs on a Telefunken Radio? +weird speaker output?
  108. working out Z out for tube with IXYS IXP10M45S plate load
  109. Review of New S-5 K-16LS Kit
  110. Dumb question.
  111. Suggest KT88 Push-Pull schematics, please.
  112. AIKIDO: Main Thread???
  113. 10Y/45 schematic wanted
  114. Dynaco ST-70 Kits Compaired FYI
  115. Mini amp using 12AU7's as power tubes?
  116. Quick question about star grounding
  117. 3K or 5K OPT in EL35 SimpleSE?
  118. Bogen L60 schematic
  119. k-12
  120. Suggestion on tube for CCS
  121. Whats the model for this?
  122. ECL 82 schematic to suggest
  123. Andrea Ciuffoli's KT88 PP
  124. Looking for comments on Welborne Labs PS10 reg. HT supply
  125. Thoughts and suggestions needed.
  126. PSU shunt capacitor selection
  127. Looking for comments in my first 300B project
  128. Transformer Coupling Questions
  129. ECL82 power supply question
  130. CGV-300B Amp Results...Fun.
  131. power transformer rating and tube current - SimpleSE
  132. Ping Drummerwill.
  133. Taking a Hammond 369BX filament winding to the limit?
  134. Using moter run caps in PSU.
  135. Speaker connect: Speakon or banana
  136. 50k or 100k output impedance.
  137. Need help remembering the name of a hybrid amplifier design book
  138. Measuring Output Impedance of Power Supply
  139. knob with long end for alpha pots
  140. IT tutorial n selection
  141. Anybody help identify these tubes
  142. CT wire -quick question
  143. New Amplifier
  144. Master Volume for Active Tube Crossover?
  145. Tube lifetime
  146. Raleigh Audio Preamp - somebody heard ?
  147. Mikael Abdellah SE KT88 ideas and questions
  148. Masco MA-8 for guitar
  149. Bogen CHB-35 to conversion to B-12/B-15
  150. Melos triode 200+ looking for spare parts
  151. Opinions on integrated amp project
  152. 6AL5 for clipping diodes?
  153. Confusion over Knight 600 tester numbers
  154. 12AU7A: I need fuzz, overdrive and distortion schematic
  155. 12AT7 vs 12AU7 (interchangeable?)
  156. Angela Electronics - Customer Service
  157. PAS visits the naughty side of town (red lit)
  158. Summing at the LTPI
  159. Test of ECC81 to 83
  160. Polypropylene caps
  161. Was this already posted here? Handmade tubes video
  162. Twist dc filament wire?
  163. Power transformer: How Big?
  164. Heater supply options and to Vhk rating of 6X4 & 6203
  165. Hickok TV-7A/U settings for 8417 tube?
  166. Hammond 125ESE and sections
  167. 6P15P hybrid amp schema?
  168. Switching voltage converter for HV supply
  169. VT4C output transformer
  170. Sound Multiplex Amp
  171. Suggestions needed for improving Rogers Cadet II PP power amplifier
  172. Adjustable Line out off of Extra Speaker Jack
  173. Transcendere Audio
  174. Wrong capacitors!
  175. 6LW6 operating points
  176. ?? xmer specs for Scott LC 21 or 130 Preamp for rewind...
  177. Loctal 6SN7?
  178. peavey heritage vtx how can i make it clean?
  179. Need some help with simulation
  180. output tranny for 6AK6
  181. What tubes for 7K6PP X-former
  182. Ham radio op makes his own triodes
  183. Newbie looking for some advice on mods and tubes for Cayin TA-30
  184. Power Transconductance Amp with Tubes, How?
  185. using the 6BX7 at low'ish current in Aikido
  186. What preamp should I build?
  187. Transformer hookup question.
  188. Home made vacuum tubes
  189. My New EL84 PP
  190. Hammond power transformer fillament rating
  191. Need help with a Russian Triode
  192. TRAFO NEEDED FOR EL84 pp
  193. Difference between 6JN6 (Berning output) and 6JB6 tubes?
  194. 2A3 SE Amp
  195. Soldering tubes directly to PCB?
  196. pa amp distortion at low volume
  197. Transformer input for guitar
  198. Potted transformers
  199. if this can works...
  200. Differential scope probes?
  201. Fisher X100B Iron
  202. Solid state power suppy for CAT SL-1
  203. Help with wiring a Hammond Power Transformer
  204. User manual for GTA SE-40 Tube Amp ?
  205. tube caps that fit.. anyone?
  206. Heater wires through conduit
  207. AB2 guitar amp design questions
  208. Wanted - Svet Sk4A bases
  209. AC Characteristics of Glow Tubes?
  210. Bargain Used Transformers: Where?
  211. Top cap tube users: pics of your amps?
  212. Question
  213. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  214. Audio Transformers 101
  215. Thinking about having a 211 SET amp built, anyone know of good schematics?
  216. 4-65A Triode curves?
  217. Is This A Good Reliable Tube Tester?
  218. Tube projects
  219. Push-Pull Cathode Bias Resistors
  220. Opinion on 300B SETs
  221. So how tattered is your Morgan Jones?
  222. Friend wants to buy a nice tube preamp
  223. Large Oil Capacitors
  224. Too awesome for words
  225. M65 stereo preamp question
  226. nasty buzz in old 35EH5 amp
  227. 6C33C tube stamp
  228. Question about VTV 6SN7 Schematic
  229. Simple Magic Eye Circuit Wanted
  230. Mute circuit on sonic frontier line one
  231. Data point software?
  232. MingDa MC-3R / icon audio la3 preamp mods
  233. Biasing
  234. Compactron characteristic curves?
  235. Analog Metric grounded grid preamp kit
  236. Possible group buy of Lundahl input/phase splitter transformers.
  237. Audio Measurements
  238. B/A 20-4 tube mono block??
  239. Strange find.. help ID?
  240. 813 Thoughts
  241. External 12V heater supply conversion question
  242. My Latest Acquisition
  243. 50/60/whatever cycle hum
  244. OEP input transformers. Anyone used ??
  245. Restack transformer from PP to SE
  246. Se 807??
  247. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  248. Question about phono preamp schematic
  249. Lectron JH50 unknown parts?
  250. Fostex or Car Speakers for My Tube Car Amp

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