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  1. Transformer input for guitar
  2. Potted transformers
  3. if this can works...
  4. Differential scope probes?
  5. Fisher X100B Iron
  6. Solid state power suppy for CAT SL-1
  7. Help with wiring a Hammond Power Transformer
  8. User manual for GTA SE-40 Tube Amp ?
  9. tube caps that fit.. anyone?
  10. Heater wires through conduit
  11. AB2 guitar amp design questions
  12. Wanted - Svet Sk4A bases
  13. AC Characteristics of Glow Tubes?
  14. Bargain Used Transformers: Where?
  15. Top cap tube users: pics of your amps?
  16. Question
  17. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  18. Audio Transformers 101
  19. Thinking about having a 211 SET amp built, anyone know of good schematics?
  20. 4-65A Triode curves?
  21. Is This A Good Reliable Tube Tester?
  22. Tube projects
  23. Push-Pull Cathode Bias Resistors
  24. Opinion on 300B SETs
  25. So how tattered is your Morgan Jones?
  26. Friend wants to buy a nice tube preamp
  27. Large Oil Capacitors
  28. Too awesome for words
  29. M65 stereo preamp question
  30. nasty buzz in old 35EH5 amp
  31. 6C33C tube stamp
  32. Question about VTV 6SN7 Schematic
  33. Simple Magic Eye Circuit Wanted
  34. Mute circuit on sonic frontier line one
  35. Data point software?
  36. MingDa MC-3R / icon audio la3 preamp mods
  37. Biasing
  38. Compactron characteristic curves?
  39. Analog Metric grounded grid preamp kit
  40. Possible group buy of Lundahl input/phase splitter transformers.
  41. Audio Measurements
  42. B/A 20-4 tube mono block??
  43. Strange find.. help ID?
  44. 813 Thoughts
  45. External 12V heater supply conversion question
  46. My Latest Acquisition
  47. 50/60/whatever cycle hum
  48. OEP input transformers. Anyone used ??
  49. Restack transformer from PP to SE
  50. Se 807??
  51. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  52. Question about phono preamp schematic
  53. Lectron JH50 unknown parts?
  54. Fostex or Car Speakers for My Tube Car Amp
  55. schematics? (also some questions)
  56. Regulated Power Supply. Bipolar, JFET or MOS?
  57. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  58. Blown up resistor in S-5 amp kit...
  59. EZ80 or 81
  60. Gun or Iron?
  61. Shanling SP-80C Problem - DC Spikes?!
  62. Silvertone Organ amp, weird osc section.
  63. Need some advice on a LTP input stage.
  64. CAT 110V to 220 V conversion
  65. When is a compactron not a compactron?
  66. Looking for big Ni lams
  67. Three PP KT88 designs. Which one ... (please;-)
  68. EAR 834P needing repair
  69. How to make non-polarized electrolytic cap?
  70. Toasted PW tranformer?
  71. Tube Cad from Glass-Ware questions
  72. U-links for earthing
  73. Supreme 45 tube amp
  74. Boxing Day Special
  75. Look what Santa brought!
  76. Soft Start for Tubes
  77. Need help to check out this preamp schematic.
  78. What dimensions for perforated AL sheet?
  79. NC pins on submin tubes
  80. Cheap alternative to EF86
  81. MOSFET follower driver oscillation
  82. Fender "Twin Reverb Amp" has no output.
  83. Hi-Fi system build
  84. Car Tube Amp
  85. Tube Identification
  86. Supratek schematics?
  87. Choice of OTL output capacitors
  88. Feedback scheme.
  89. Christmas Eve
  90. Best tubes for Scott 222
  91. HH Scott 222 speaker recommendations and upgrades
  92. mixing coupling cap types
  93. Transformer chassis layout
  94. SimpleSE / Edcor CXSE OPT
  95. Star ground help
  96. What causes my 0D3 to extinguish?
  97. converting UL in triode
  98. Beyer Dynamic BV35570
  99. Lundahl LL1527 phase-splitter
  100. Morgan Jones HPA ...strange startup behaviour
  101. Best Sounding Phono Input Tube
  102. We417+300b
  103. class-A PP amplifier with 2x 845 question
  104. Kismet-300B-amp
  105. Will differential share the same THD characteristics as SE, if same triode is used?
  106. The biggest bunch of tubes ever seen
  107. DHT AC Filament Noise
  108. augmented cathode follower?
  109. Tube amp find in old theater
  110. Is there a better amp kit????
  111. figuring amplification factor of a tube
  112. SE 6l6
  113. Need help
  114. Dynaco (Dynaclone) PA060 transformer
  115. Switching power supply for tube filaments possible???
  116. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  117. DN2540/2535 fun and games
  118. 6P3S SE amp requesting
  119. Newbie needs Magnavox console troubleshooting tips
  120. 6bBYGA x2 as full-wave rectifier?
  121. Digital volume/tone control in Tube amps
  122. plotting load-line for OTL amp?
  123. New SE 6P15P project
  124. New Production Shuguang Type 50 Tubes
  125. Running different tubes
  126. Fairchild 260 rebuild questions
  127. Filament Voltage vs. Hum
  128. drawing a loadline from schematics
  129. Know this tube? 10J12C or 10X12C ...
  130. Precision Fidelity - C7 Mods...help Wanted!
  131. stupid newbie: what is this transformer???
  132. Anyone else having problems with Mercury Magnetics transformers?
  133. EF86-EL84: too much gain!
  134. Balanced Power
  135. GTA 300B SE Mk.II Power Transformer
  136. Tube Shields
  137. Some basic questions about s-5 amp kit mods
  138. Novice Voltage Regulator Question
  139. The Critical Ear
  140. Tube matching service - As found on Craigslist
  141. 6j1 question
  142. Duosonic 40's era record player
  143. 6bl8 el84 nfb question
  144. 6T9 push pull
  145. 12AY7 circuit?
  146. E810F: RIAA circuits
  147. need EL519/6KG6 spice 3f4 model
  148. enough gain for James tone stack
  149. Anyone recognise this amp?
  150. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  151. matched tubes?
  152. List of current production types
  153. Soundcard greater than 24-bit
  154. Replacing Valves Leak Stereo 20
  155. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  156. I Damaged my Amp?
  157. EL84 Triode PP Design
  158. pentode with grid AND cathode tied to gnd?
  159. What d'you put in the PSU chassis, and what in the circuit chassis?
  160. a real no-brainer question about 1/2 tubes
  161. 813 power supply question
  162. ESR of motor-run caps?
  163. OPT-102 - data? (Audio Electronic Supply)
  164. Help me out with a circuit design
  165. Partial Feedback EL84PP - Not quite as expected (yet)
  166. Preamp suggestions - Help a hack have some fun
  167. 6GK6 Ultralinear
  168. Vacuum Rectifier Question
  169. LM4702 meets up with 6550's
  170. 6bx7gt envelope temperature
  171. Counterpoint SA 3 schematic
  172. Tubes measured in microhms = mA..?
  173. Checking ARC SP9
  174. 6J11 Datasheet anyone?
  175. Help cleaning tube pins
  176. Best way to use a PAIR of 6SL7’s to drive a 300B?
  177. preamp cathode bypass cap benefits
  178. EF184 or (EC)L82 radio amplifier?!
  179. 5687 for Aikido
  180. Pre Amplifier Out Sockets
  181. Recommended output valves for this transformer
  182. power tubes and learning SET design
  183. Phono pre-amp Question
  184. TVA-1 cathode resistor value
  185. need power tranformer ideas
  186. Cary Cad-300b Se
  187. newbie question about 7591 cathode bias
  188. 5814 Raytheon Windmill Getter late 50's
  189. Fundamentals of tube amp design
  190. 7868 amp sounds good but low volume
  191. How does class AB2 sound?
  192. 6sn7 brand
  193. Might speaker filters be in the wrong place?
  194. Problem: attenuation after cathodyne and CF
  195. LED bias and differential pairs
  196. Kimmel Mu stage summary sheet
  197. Tube buffer for car audio
  198. Practical PSE thinking.
  199. I need help on a Simple guitar/vocal pre amp.
  200. Kr300bxls
  201. Biggest noval dual triode?
  202. 2 amps with 1 set of speakers?
  203. tubeamp kits
  204. Tripletone amplifier
  205. Tube curves tracer
  206. Help with Shunt Regulation and Noise
  207. Plug 'N' Play B+ time delay
  208. Hot Rod "Bronco" project/TRANSFORMERS
  209. Precision PA conversion help needed
  210. Caps in Voltage divider Heater Bias ?
  211. Looking for Melos triode 200+ schematics
  212. ETF07 brief summary
  213. No response from Vacuumtubes.net
  214. dynakit pam selenium rectifier replacement help
  215. Adjustable Fixed Grid Bias
  216. Best output transformer for 300B
  217. Transconductance of E88CC,6922,6N23P
  218. Finding The Root Of The Problem
  219. Beard P35
  220. purple tube heaters...
  221. Which 12AU7 and 6V6GTs?
  222. 6f2 - 6n1???
  223. Help with Schematic
  224. Class A Push Pull with 6L6GC
  225. EL84 driver tube, with less than 5mA current
  226. Sleeping Sickness
  227. 50L6-GT or 6W6-GT
  228. Help ID this transformer
  229. Tube dropping - Help?
  230. For anyone running a K-502 with a FR driver
  231. Active crossover
  232. General guidence building guitar amp
  233. Pounds, Shillings and Pence
  234. Trying to learn something, against my better judgment
  235. Battery grid bias to fixed bias in Toccato?
  236. PLS take a look!
  237. Use for 5K:8 PP OPT?
  238. Low amp Impedance input and high dac output
  239. The Magic of a Name
  240. which edition of Morgan Jones' books?
  241. altec 1530 schematic
  242. Can this wire be used inside tube amp, H07V-K 1.5mm2?
  243. 6HB6/6HA& Spud?
  244. schematic diagram golden tube se40 for repair! help
  245. Reliable B+ PSU for pro preamp
  246. Help me find some info please
  247. Some tube radios
  248. Electro Harmonix 300b...shorting problems?
  249. Aikido linestage tube choice? (again)
  250. Teeco 1220??

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