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  1. Bargain Used Transformers: Where?
  2. Top cap tube users: pics of your amps?
  3. Question
  4. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  5. Audio Transformers 101
  6. Thinking about having a 211 SET amp built, anyone know of good schematics?
  7. 4-65A Triode curves?
  8. Tube projects
  9. Push-Pull Cathode Bias Resistors
  10. Opinion on 300B SETs
  11. So how tattered is your Morgan Jones?
  12. Friend wants to buy a nice tube preamp
  13. Large Oil Capacitors
  14. Too awesome for words
  15. M65 stereo preamp question
  16. nasty buzz in old 35EH5 amp
  17. 6C33C tube stamp
  18. Question about VTV 6SN7 Schematic
  19. Simple Magic Eye Circuit Wanted
  20. Mute circuit on sonic frontier line one
  21. Data point software?
  22. MingDa MC-3R / icon audio la3 preamp mods
  23. Biasing
  24. Compactron characteristic curves?
  25. Analog Metric grounded grid preamp kit
  26. Possible group buy of Lundahl input/phase splitter transformers.
  27. Audio Measurements
  28. B/A 20-4 tube mono block??
  29. Strange find.. help ID?
  30. 813 Thoughts
  31. External 12V heater supply conversion question
  32. My Latest Acquisition
  33. 50/60/whatever cycle hum
  34. OEP input transformers. Anyone used ??
  35. Restack transformer from PP to SE
  36. Se 807??
  37. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  38. Question about phono preamp schematic
  39. Lectron JH50 unknown parts?
  40. Fostex or Car Speakers for My Tube Car Amp
  41. schematics? (also some questions)
  42. Regulated Power Supply. Bipolar, JFET or MOS?
  43. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  44. Blown up resistor in S-5 amp kit...
  45. EZ80 or 81
  46. Gun or Iron?
  47. Shanling SP-80C Problem - DC Spikes?!
  48. Need some advice on a LTP input stage.
  49. CAT 110V to 220 V conversion
  50. When is a compactron not a compactron?
  51. Looking for big Ni lams
  52. Three PP KT88 designs. Which one ... (please;-)
  53. EAR 834P needing repair
  54. Toasted PW tranformer?
  55. Tube Cad from Glass-Ware questions
  56. U-links for earthing
  57. Supreme 45 tube amp
  58. Boxing Day Special
  59. Look what Santa brought!
  60. Soft Start for Tubes
  61. Need help to check out this preamp schematic.
  62. What dimensions for perforated AL sheet?
  63. NC pins on submin tubes
  64. Cheap alternative to EF86
  65. MOSFET follower driver oscillation
  66. Hi-Fi system build
  67. Car Tube Amp
  68. Tube Identification
  69. Supratek schematics?
  70. Choice of OTL output capacitors
  71. Feedback scheme.
  72. Christmas Eve
  73. Best tubes for Scott 222
  74. HH Scott 222 speaker recommendations and upgrades
  75. mixing coupling cap types
  76. Transformer chassis layout
  77. SimpleSE / Edcor CXSE OPT
  78. Star ground help
  79. What causes my 0D3 to extinguish?
  80. converting UL in triode
  81. Beyer Dynamic BV35570
  82. Lundahl LL1527 phase-splitter
  83. Morgan Jones HPA ...strange startup behaviour
  84. Best Sounding Phono Input Tube
  85. We417+300b
  86. class-A PP amplifier with 2x 845 question
  87. Kismet-300B-amp
  88. Will differential share the same THD characteristics as SE, if same triode is used?
  89. The biggest bunch of tubes ever seen
  90. DHT AC Filament Noise
  91. augmented cathode follower?
  92. Tube amp find in old theater
  93. Is there a better amp kit????
  94. figuring amplification factor of a tube
  95. SE 6l6
  96. Need help
  97. Dynaco (Dynaclone) PA060 transformer
  98. Switching power supply for tube filaments possible???
  99. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  100. DN2540/2535 fun and games
  101. 6P3S SE amp requesting
  102. Newbie needs Magnavox console troubleshooting tips
  103. 6bBYGA x2 as full-wave rectifier?
  104. Digital volume/tone control in Tube amps
  105. plotting load-line for OTL amp?
  106. New SE 6P15P project
  107. New Production Shuguang Type 50 Tubes
  108. Running different tubes
  109. Fairchild 260 rebuild questions
  110. Filament Voltage vs. Hum
  111. drawing a loadline from schematics
  112. Know this tube? 10J12C or 10X12C ...
  113. Precision Fidelity - C7 Mods...help Wanted!
  114. stupid newbie: what is this transformer???
  115. Anyone else having problems with Mercury Magnetics transformers?
  116. EF86-EL84: too much gain!
  117. Balanced Power
  118. GTA 300B SE Mk.II Power Transformer
  119. Tube Shields
  120. Some basic questions about s-5 amp kit mods
  121. Novice Voltage Regulator Question
  122. The Critical Ear
  123. Tube matching service - As found on Craigslist
  124. 6j1 question
  125. Duosonic 40's era record player
  126. 6bl8 el84 nfb question
  127. 6T9 push pull
  128. 12AY7 circuit?
  129. E810F: RIAA circuits
  130. need EL519/6KG6 spice 3f4 model
  131. enough gain for James tone stack
  132. Anyone recognise this amp?
  133. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  134. matched tubes?
  135. List of current production types
  136. Soundcard greater than 24-bit
  137. Replacing Valves Leak Stereo 20
  138. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  139. I Damaged my Amp?
  140. EL84 Triode PP Design
  141. pentode with grid AND cathode tied to gnd?
  142. What d'you put in the PSU chassis, and what in the circuit chassis?
  143. a real no-brainer question about 1/2 tubes
  144. 813 power supply question
  145. OPT-102 - data? (Audio Electronic Supply)
  146. Help me out with a circuit design
  147. Partial Feedback EL84PP - Not quite as expected (yet)
  148. Preamp suggestions - Help a hack have some fun
  149. 6GK6 Ultralinear
  150. Vacuum Rectifier Question
  151. LM4702 meets up with 6550's
  152. 6bx7gt envelope temperature
  153. Counterpoint SA 3 schematic
  154. Tubes measured in microhms = mA..?
  155. Checking ARC SP9
  156. 6J11 Datasheet anyone?
  157. Help cleaning tube pins
  158. Best way to use a PAIR of 6SL7’s to drive a 300B?
  159. preamp cathode bypass cap benefits
  160. EF184 or (EC)L82 radio amplifier?!
  161. 5687 for Aikido
  162. Pre Amplifier Out Sockets
  163. Recommended output valves for this transformer
  164. power tubes and learning SET design
  165. Phono pre-amp Question
  166. TVA-1 cathode resistor value
  167. need power tranformer ideas
  168. Cary Cad-300b Se
  169. newbie question about 7591 cathode bias
  170. 5814 Raytheon Windmill Getter late 50's
  171. Fundamentals of tube amp design
  172. 7868 amp sounds good but low volume
  173. How does class AB2 sound?
  174. 6sn7 brand
  175. Might speaker filters be in the wrong place?
  176. Problem: attenuation after cathodyne and CF
  177. LED bias and differential pairs
  178. Kimmel Mu stage summary sheet
  179. Tube buffer for car audio
  180. Practical PSE thinking.
  181. Kr300bxls
  182. Biggest noval dual triode?
  183. 2 amps with 1 set of speakers?
  184. tubeamp kits
  185. Tripletone amplifier
  186. Help with Shunt Regulation and Noise
  187. Plug 'N' Play B+ time delay
  188. Precision PA conversion help needed
  189. Caps in Voltage divider Heater Bias ?
  190. Looking for Melos triode 200+ schematics
  191. ETF07 brief summary
  192. No response from Vacuumtubes.net
  193. dynakit pam selenium rectifier replacement help
  194. Adjustable Fixed Grid Bias
  195. Best output transformer for 300B
  196. Transconductance of E88CC,6922,6N23P
  197. Finding The Root Of The Problem
  198. Beard P35
  199. purple tube heaters...
  200. Which 12AU7 and 6V6GTs?
  201. 6f2 - 6n1???
  202. Help with Schematic
  203. Class A Push Pull with 6L6GC
  204. EL84 driver tube, with less than 5mA current
  205. Sleeping Sickness
  206. 50L6-GT or 6W6-GT
  207. Help ID this transformer
  208. Tube dropping - Help?
  209. For anyone running a K-502 with a FR driver
  210. Active crossover
  211. Pounds, Shillings and Pence
  212. Trying to learn something, against my better judgment
  213. Battery grid bias to fixed bias in Toccato?
  214. PLS take a look!
  215. Use for 5K:8 PP OPT?
  216. Low amp Impedance input and high dac output
  217. The Magic of a Name
  218. which edition of Morgan Jones' books?
  219. altec 1530 schematic
  220. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  221. 6HB6/6HA& Spud?
  222. schematic diagram golden tube se40 for repair! help
  223. Reliable B+ PSU for pro preamp
  224. Help me find some info please
  225. Some tube radios
  226. Electro Harmonix 300b...shorting problems?
  227. Aikido linestage tube choice? (again)
  228. Teeco 1220??
  229. magic smoke pilot aa903
  230. PP bias balance pot
  231. Jolida JD 502A
  232. Cathode Bias for SimpleSE
  233. TRemPre malfunctioning
  234. HV benchtop power supply, help on opamp setup
  235. Transcendar Output Transformers ST70
  236. Unofficial Tube Market Survey
  237. testing 6DJ8s
  238. 6L6 AB PPP stage; does it make sense?
  239. 7868 tubes - replace with 6L6's?
  240. Vintage Amp...too much gain on CD
  241. ETF07 - Last possibility to join
  242. Tube 7403
  243. Melos triode and computer as source: BUZZ BUZZ BUZZ
  244. 6SN7 Cascoded CCS
  245. 7591 se tube amp?
  246. Sovtek 5881WXT/Quad II
  247. Adding more capacitors to an AMP
  248. Tube Characteristics
  249. Tube guilt
  250. KT88 or 6550

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