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  1. VT4C output transformer
  2. Sound Multiplex Amp
  3. Suggestions needed for improving Rogers Cadet II PP power amplifier
  4. Adjustable Line out off of Extra Speaker Jack
  5. Transcendere Audio
  6. Wrong capacitors!
  7. 6LW6 operating points
  8. ?? xmer specs for Scott LC 21 or 130 Preamp for rewind...
  9. Loctal 6SN7?
  10. peavey heritage vtx how can i make it clean?
  11. Need some help with simulation
  12. output tranny for 6AK6
  13. What tubes for 7K6PP X-former
  14. Ham radio op makes his own triodes
  15. Newbie looking for some advice on mods and tubes for Cayin TA-30
  16. Power Transconductance Amp with Tubes, How?
  17. using the 6BX7 at low'ish current in Aikido
  18. What preamp should I build?
  19. Transformer hookup question.
  20. Home made vacuum tubes
  21. My New EL84 PP
  22. Hammond power transformer fillament rating
  23. Need help with a Russian Triode
  24. TRAFO NEEDED FOR EL84 pp
  25. Difference between 6JN6 (Berning output) and 6JB6 tubes?
  26. 2A3 SE Amp
  27. Soldering tubes directly to PCB?
  28. pa amp distortion at low volume
  29. Transformer input for guitar
  30. Potted transformers
  31. if this can works...
  32. Differential scope probes?
  33. Fisher X100B Iron
  34. Solid state power suppy for CAT SL-1
  35. Help with wiring a Hammond Power Transformer
  36. User manual for GTA SE-40 Tube Amp ?
  37. tube caps that fit.. anyone?
  38. Heater wires through conduit
  39. AB2 guitar amp design questions
  40. Wanted - Svet Sk4A bases
  41. AC Characteristics of Glow Tubes?
  42. Bargain Used Transformers: Where?
  43. Top cap tube users: pics of your amps?
  44. Question
  45. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  46. Audio Transformers 101
  47. Thinking about having a 211 SET amp built, anyone know of good schematics?
  48. 4-65A Triode curves?
  49. Is This A Good Reliable Tube Tester?
  50. Tube projects
  51. Push-Pull Cathode Bias Resistors
  52. Opinion on 300B SETs
  53. So how tattered is your Morgan Jones?
  54. Friend wants to buy a nice tube preamp
  55. Large Oil Capacitors
  56. Too awesome for words
  57. M65 stereo preamp question
  58. nasty buzz in old 35EH5 amp
  59. 6C33C tube stamp
  60. Question about VTV 6SN7 Schematic
  61. Simple Magic Eye Circuit Wanted
  62. Mute circuit on sonic frontier line one
  63. Data point software?
  64. MingDa MC-3R / icon audio la3 preamp mods
  65. Biasing
  66. Compactron characteristic curves?
  67. Analog Metric grounded grid preamp kit
  68. Possible group buy of Lundahl input/phase splitter transformers.
  69. Audio Measurements
  70. B/A 20-4 tube mono block??
  71. Strange find.. help ID?
  72. 813 Thoughts
  73. External 12V heater supply conversion question
  74. My Latest Acquisition
  75. 50/60/whatever cycle hum
  76. OEP input transformers. Anyone used ??
  77. Restack transformer from PP to SE
  78. Se 807??
  79. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  80. Question about phono preamp schematic
  81. Lectron JH50 unknown parts?
  82. Fostex or Car Speakers for My Tube Car Amp
  83. schematics? (also some questions)
  84. Regulated Power Supply. Bipolar, JFET or MOS?
  85. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  86. Blown up resistor in S-5 amp kit...
  87. EZ80 or 81
  88. Gun or Iron?
  89. Shanling SP-80C Problem - DC Spikes?!
  90. Silvertone Organ amp, weird osc section.
  91. Need some advice on a LTP input stage.
  92. CAT 110V to 220 V conversion
  93. When is a compactron not a compactron?
  94. Looking for big Ni lams
  95. Three PP KT88 designs. Which one ... (please;-)
  96. EAR 834P needing repair
  97. How to make non-polarized electrolytic cap?
  98. Toasted PW tranformer?
  99. Tube Cad from Glass-Ware questions
  100. U-links for earthing
  101. Supreme 45 tube amp
  102. Boxing Day Special
  103. Look what Santa brought!
  104. Soft Start for Tubes
  105. Need help to check out this preamp schematic.
  106. What dimensions for perforated AL sheet?
  107. NC pins on submin tubes
  108. Cheap alternative to EF86
  109. MOSFET follower driver oscillation
  110. Fender "Twin Reverb Amp" has no output.
  111. Hi-Fi system build
  112. Car Tube Amp
  113. Tube Identification
  114. Supratek schematics?
  115. Choice of OTL output capacitors
  116. Feedback scheme.
  117. Christmas Eve
  118. Best tubes for Scott 222
  119. HH Scott 222 speaker recommendations and upgrades
  120. mixing coupling cap types
  121. Transformer chassis layout
  122. SimpleSE / Edcor CXSE OPT
  123. Star ground help
  124. What causes my 0D3 to extinguish?
  125. converting UL in triode
  126. Beyer Dynamic BV35570
  127. Lundahl LL1527 phase-splitter
  128. Morgan Jones HPA ...strange startup behaviour
  129. Best Sounding Phono Input Tube
  130. We417+300b
  131. class-A PP amplifier with 2x 845 question
  132. Kismet-300B-amp
  133. Will differential share the same THD characteristics as SE, if same triode is used?
  134. The biggest bunch of tubes ever seen
  135. DHT AC Filament Noise
  136. augmented cathode follower?
  137. Tube amp find in old theater
  138. Is there a better amp kit????
  139. figuring amplification factor of a tube
  140. SE 6l6
  141. Need help
  142. Dynaco (Dynaclone) PA060 transformer
  143. Switching power supply for tube filaments possible???
  144. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  145. DN2540/2535 fun and games
  146. 6P3S SE amp requesting
  147. Newbie needs Magnavox console troubleshooting tips
  148. 6bBYGA x2 as full-wave rectifier?
  149. Digital volume/tone control in Tube amps
  150. plotting load-line for OTL amp?
  151. New SE 6P15P project
  152. New Production Shuguang Type 50 Tubes
  153. Running different tubes
  154. Fairchild 260 rebuild questions
  155. Filament Voltage vs. Hum
  156. drawing a loadline from schematics
  157. Know this tube? 10J12C or 10X12C ...
  158. Precision Fidelity - C7 Mods...help Wanted!
  159. stupid newbie: what is this transformer???
  160. Anyone else having problems with Mercury Magnetics transformers?
  161. EF86-EL84: too much gain!
  162. Balanced Power
  163. GTA 300B SE Mk.II Power Transformer
  164. Tube Shields
  165. Some basic questions about s-5 amp kit mods
  166. Novice Voltage Regulator Question
  167. The Critical Ear
  168. Tube matching service - As found on Craigslist
  169. 6j1 question
  170. Duosonic 40's era record player
  171. 6bl8 el84 nfb question
  172. 6T9 push pull
  173. 12AY7 circuit?
  174. E810F: RIAA circuits
  175. need EL519/6KG6 spice 3f4 model
  176. enough gain for James tone stack
  177. Anyone recognise this amp?
  178. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  179. matched tubes?
  180. List of current production types
  181. Soundcard greater than 24-bit
  182. Replacing Valves Leak Stereo 20
  183. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  184. I Damaged my Amp?
  185. EL84 Triode PP Design
  186. pentode with grid AND cathode tied to gnd?
  187. What d'you put in the PSU chassis, and what in the circuit chassis?
  188. a real no-brainer question about 1/2 tubes
  189. 813 power supply question
  190. ESR of motor-run caps?
  191. OPT-102 - data? (Audio Electronic Supply)
  192. Help me out with a circuit design
  193. Partial Feedback EL84PP - Not quite as expected (yet)
  194. Preamp suggestions - Help a hack have some fun
  195. 6GK6 Ultralinear
  196. Vacuum Rectifier Question
  197. LM4702 meets up with 6550's
  198. 6bx7gt envelope temperature
  199. Counterpoint SA 3 schematic
  200. Tubes measured in microhms = mA..?
  201. Checking ARC SP9
  202. 6J11 Datasheet anyone?
  203. Help cleaning tube pins
  204. Best way to use a PAIR of 6SL7’s to drive a 300B?
  205. preamp cathode bypass cap benefits
  206. EF184 or (EC)L82 radio amplifier?!
  207. 5687 for Aikido
  208. Pre Amplifier Out Sockets
  209. Recommended output valves for this transformer
  210. power tubes and learning SET design
  211. Phono pre-amp Question
  212. TVA-1 cathode resistor value
  213. need power tranformer ideas
  214. Cary Cad-300b Se
  215. newbie question about 7591 cathode bias
  216. 5814 Raytheon Windmill Getter late 50's
  217. Fundamentals of tube amp design
  218. 7868 amp sounds good but low volume
  219. How does class AB2 sound?
  220. 6sn7 brand
  221. Might speaker filters be in the wrong place?
  222. Problem: attenuation after cathodyne and CF
  223. LED bias and differential pairs
  224. Kimmel Mu stage summary sheet
  225. Tube buffer for car audio
  226. Practical PSE thinking.
  227. I need help on a Simple guitar/vocal pre amp.
  228. Kr300bxls
  229. Biggest noval dual triode?
  230. 2 amps with 1 set of speakers?
  231. tubeamp kits
  232. Tripletone amplifier
  233. Tube curves tracer
  234. Help with Shunt Regulation and Noise
  235. Plug 'N' Play B+ time delay
  236. Hot Rod "Bronco" project/TRANSFORMERS
  237. Precision PA conversion help needed
  238. Caps in Voltage divider Heater Bias ?
  239. Looking for Melos triode 200+ schematics
  240. ETF07 brief summary
  241. No response from Vacuumtubes.net
  242. dynakit pam selenium rectifier replacement help
  243. Adjustable Fixed Grid Bias
  244. Best output transformer for 300B
  245. Transconductance of E88CC,6922,6N23P
  246. Finding The Root Of The Problem
  247. Beard P35
  248. purple tube heaters...
  249. Which 12AU7 and 6V6GTs?
  250. 6f2 - 6n1???

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