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  1. Solid state power suppy for CAT SL-1
  2. Help with wiring a Hammond Power Transformer
  3. User manual for GTA SE-40 Tube Amp ?
  4. tube caps that fit.. anyone?
  5. Heater wires through conduit
  6. AB2 guitar amp design questions
  7. Wanted - Svet Sk4A bases
  8. AC Characteristics of Glow Tubes?
  9. Bargain Used Transformers: Where?
  10. Top cap tube users: pics of your amps?
  11. Question
  12. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  13. Audio Transformers 101
  14. Thinking about having a 211 SET amp built, anyone know of good schematics?
  15. 4-65A Triode curves?
  16. Is This A Good Reliable Tube Tester?
  17. Tube projects
  18. Push-Pull Cathode Bias Resistors
  19. Opinion on 300B SETs
  20. So how tattered is your Morgan Jones?
  21. Friend wants to buy a nice tube preamp
  22. Large Oil Capacitors
  23. Too awesome for words
  24. M65 stereo preamp question
  25. nasty buzz in old 35EH5 amp
  26. 6C33C tube stamp
  27. Question about VTV 6SN7 Schematic
  28. Simple Magic Eye Circuit Wanted
  29. Mute circuit on sonic frontier line one
  30. Data point software?
  31. MingDa MC-3R / icon audio la3 preamp mods
  32. Biasing
  33. Compactron characteristic curves?
  34. Analog Metric grounded grid preamp kit
  35. Possible group buy of Lundahl input/phase splitter transformers.
  36. Audio Measurements
  37. B/A 20-4 tube mono block??
  38. Strange find.. help ID?
  39. 813 Thoughts
  40. External 12V heater supply conversion question
  41. My Latest Acquisition
  42. 50/60/whatever cycle hum
  43. OEP input transformers. Anyone used ??
  44. Restack transformer from PP to SE
  45. Se 807??
  46. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  47. Question about phono preamp schematic
  48. Lectron JH50 unknown parts?
  49. Fostex or Car Speakers for My Tube Car Amp
  50. schematics? (also some questions)
  51. Regulated Power Supply. Bipolar, JFET or MOS?
  52. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  53. Blown up resistor in S-5 amp kit...
  54. EZ80 or 81
  55. Gun or Iron?
  56. Shanling SP-80C Problem - DC Spikes?!
  57. Silvertone Organ amp, weird osc section.
  58. Need some advice on a LTP input stage.
  59. CAT 110V to 220 V conversion
  60. When is a compactron not a compactron?
  61. Looking for big Ni lams
  62. Three PP KT88 designs. Which one ... (please;-)
  63. EAR 834P needing repair
  64. How to make non-polarized electrolytic cap?
  65. Toasted PW tranformer?
  66. Tube Cad from Glass-Ware questions
  67. U-links for earthing
  68. Supreme 45 tube amp
  69. Boxing Day Special
  70. Look what Santa brought!
  71. Soft Start for Tubes
  72. Need help to check out this preamp schematic.
  73. What dimensions for perforated AL sheet?
  74. NC pins on submin tubes
  75. Cheap alternative to EF86
  76. MOSFET follower driver oscillation
  77. Fender "Twin Reverb Amp" has no output.
  78. Hi-Fi system build
  79. Car Tube Amp
  80. Tube Identification
  81. Supratek schematics?
  82. Choice of OTL output capacitors
  83. Feedback scheme.
  84. Christmas Eve
  85. Best tubes for Scott 222
  86. HH Scott 222 speaker recommendations and upgrades
  87. mixing coupling cap types
  88. Transformer chassis layout
  89. SimpleSE / Edcor CXSE OPT
  90. Star ground help
  91. What causes my 0D3 to extinguish?
  92. converting UL in triode
  93. Beyer Dynamic BV35570
  94. Lundahl LL1527 phase-splitter
  95. Morgan Jones HPA ...strange startup behaviour
  96. Best Sounding Phono Input Tube
  97. We417+300b
  98. class-A PP amplifier with 2x 845 question
  99. Kismet-300B-amp
  100. Will differential share the same THD characteristics as SE, if same triode is used?
  101. The biggest bunch of tubes ever seen
  102. DHT AC Filament Noise
  103. augmented cathode follower?
  104. Tube amp find in old theater
  105. Is there a better amp kit????
  106. figuring amplification factor of a tube
  107. SE 6l6
  108. Need help
  109. Dynaco (Dynaclone) PA060 transformer
  110. Switching power supply for tube filaments possible???
  111. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  112. DN2540/2535 fun and games
  113. 6P3S SE amp requesting
  114. Newbie needs Magnavox console troubleshooting tips
  115. 6bBYGA x2 as full-wave rectifier?
  116. Digital volume/tone control in Tube amps
  117. plotting load-line for OTL amp?
  118. New SE 6P15P project
  119. New Production Shuguang Type 50 Tubes
  120. Running different tubes
  121. Fairchild 260 rebuild questions
  122. Filament Voltage vs. Hum
  123. drawing a loadline from schematics
  124. Know this tube? 10J12C or 10X12C ...
  125. Precision Fidelity - C7 Mods...help Wanted!
  126. stupid newbie: what is this transformer???
  127. Anyone else having problems with Mercury Magnetics transformers?
  128. EF86-EL84: too much gain!
  129. Balanced Power
  130. GTA 300B SE Mk.II Power Transformer
  131. Tube Shields
  132. Some basic questions about s-5 amp kit mods
  133. Novice Voltage Regulator Question
  134. The Critical Ear
  135. Tube matching service - As found on Craigslist
  136. 6j1 question
  137. Duosonic 40's era record player
  138. 6bl8 el84 nfb question
  139. 6T9 push pull
  140. 12AY7 circuit?
  141. E810F: RIAA circuits
  142. need EL519/6KG6 spice 3f4 model
  143. enough gain for James tone stack
  144. Anyone recognise this amp?
  145. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  146. matched tubes?
  147. List of current production types
  148. Soundcard greater than 24-bit
  149. Replacing Valves Leak Stereo 20
  150. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  151. I Damaged my Amp?
  152. EL84 Triode PP Design
  153. pentode with grid AND cathode tied to gnd?
  154. What d'you put in the PSU chassis, and what in the circuit chassis?
  155. a real no-brainer question about 1/2 tubes
  156. 813 power supply question
  157. ESR of motor-run caps?
  158. OPT-102 - data? (Audio Electronic Supply)
  159. Help me out with a circuit design
  160. Partial Feedback EL84PP - Not quite as expected (yet)
  161. Preamp suggestions - Help a hack have some fun
  162. 6GK6 Ultralinear
  163. Vacuum Rectifier Question
  164. LM4702 meets up with 6550's
  165. 6bx7gt envelope temperature
  166. Counterpoint SA 3 schematic
  167. Tubes measured in microhms = mA..?
  168. Checking ARC SP9
  169. 6J11 Datasheet anyone?
  170. Help cleaning tube pins
  171. Best way to use a PAIR of 6SL7’s to drive a 300B?
  172. preamp cathode bypass cap benefits
  173. EF184 or (EC)L82 radio amplifier?!
  174. 5687 for Aikido
  175. Pre Amplifier Out Sockets
  176. Recommended output valves for this transformer
  177. power tubes and learning SET design
  178. Phono pre-amp Question
  179. TVA-1 cathode resistor value
  180. need power tranformer ideas
  181. Cary Cad-300b Se
  182. newbie question about 7591 cathode bias
  183. 5814 Raytheon Windmill Getter late 50's
  184. Fundamentals of tube amp design
  185. 7868 amp sounds good but low volume
  186. How does class AB2 sound?
  187. 6sn7 brand
  188. Might speaker filters be in the wrong place?
  189. Problem: attenuation after cathodyne and CF
  190. LED bias and differential pairs
  191. Kimmel Mu stage summary sheet
  192. Tube buffer for car audio
  193. Practical PSE thinking.
  194. I need help on a Simple guitar/vocal pre amp.
  195. Kr300bxls
  196. Biggest noval dual triode?
  197. 2 amps with 1 set of speakers?
  198. tubeamp kits
  199. Tripletone amplifier
  200. Tube curves tracer
  201. Help with Shunt Regulation and Noise
  202. Plug 'N' Play B+ time delay
  203. Hot Rod "Bronco" project/TRANSFORMERS
  204. Precision PA conversion help needed
  205. Caps in Voltage divider Heater Bias ?
  206. Looking for Melos triode 200+ schematics
  207. ETF07 brief summary
  208. No response from Vacuumtubes.net
  209. dynakit pam selenium rectifier replacement help
  210. Adjustable Fixed Grid Bias
  211. Best output transformer for 300B
  212. Transconductance of E88CC,6922,6N23P
  213. Finding The Root Of The Problem
  214. Beard P35
  215. purple tube heaters...
  216. Which 12AU7 and 6V6GTs?
  217. 6f2 - 6n1???
  218. Help with Schematic
  219. Class A Push Pull with 6L6GC
  220. EL84 driver tube, with less than 5mA current
  221. Sleeping Sickness
  222. 50L6-GT or 6W6-GT
  223. Help ID this transformer
  224. Tube dropping - Help?
  225. For anyone running a K-502 with a FR driver
  226. Active crossover
  227. General guidence building guitar amp
  228. Pounds, Shillings and Pence
  229. Trying to learn something, against my better judgment
  230. Battery grid bias to fixed bias in Toccato?
  231. PLS take a look!
  232. Use for 5K:8 PP OPT?
  233. Low amp Impedance input and high dac output
  234. The Magic of a Name
  235. which edition of Morgan Jones' books?
  236. altec 1530 schematic
  237. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  238. 6HB6/6HA& Spud?
  239. schematic diagram golden tube se40 for repair! help
  240. Reliable B+ PSU for pro preamp
  241. Help me find some info please
  242. Some tube radios
  243. Electro Harmonix 300b...shorting problems?
  244. Aikido linestage tube choice? (again)
  245. Teeco 1220??
  246. magic smoke pilot aa903
  247. PP bias balance pot
  248. Jolida JD 502A
  249. Cathode Bias for SimpleSE
  250. TRemPre malfunctioning

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