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  1. Transformer Coupling Questions
  2. ECL82 power supply question
  3. CGV-300B Amp Results...Fun.
  4. power transformer rating and tube current - SimpleSE
  5. Ping Drummerwill.
  6. Taking a Hammond 369BX filament winding to the limit?
  7. Using moter run caps in PSU.
  8. Speaker connect: Speakon or banana
  9. 50k or 100k output impedance.
  10. Need help remembering the name of a hybrid amplifier design book
  11. Measuring Output Impedance of Power Supply
  12. knob with long end for alpha pots
  13. IT tutorial n selection
  14. Anybody help identify these tubes
  15. CT wire -quick question
  16. New Amplifier
  17. Master Volume for Active Tube Crossover?
  18. Tube lifetime
  19. Raleigh Audio Preamp - somebody heard ?
  20. Mikael Abdellah SE KT88 ideas and questions
  21. Masco MA-8 for guitar
  22. Bogen CHB-35 to conversion to B-12/B-15
  23. Melos triode 200+ looking for spare parts
  24. Opinions on integrated amp project
  25. 6AL5 for clipping diodes?
  26. Confusion over Knight 600 tester numbers
  27. 12AU7A: I need fuzz, overdrive and distortion schematic
  28. 12AT7 vs 12AU7 (interchangeable?)
  29. Angela Electronics - Customer Service
  30. PAS visits the naughty side of town (red lit)
  31. Summing at the LTPI
  32. Test of ECC81 to 83
  33. Polypropylene caps
  34. Was this already posted here? Handmade tubes video
  35. Twist dc filament wire?
  36. Power transformer: How Big?
  37. Heater supply options and to Vhk rating of 6X4 & 6203
  38. Hickok TV-7A/U settings for 8417 tube?
  39. Hammond 125ESE and sections
  40. 6P15P hybrid amp schema?
  41. Switching voltage converter for HV supply
  42. VT4C output transformer
  43. Sound Multiplex Amp
  44. Suggestions needed for improving Rogers Cadet II PP power amplifier
  45. Adjustable Line out off of Extra Speaker Jack
  46. Transcendere Audio
  47. Wrong capacitors!
  48. 6LW6 operating points
  49. ?? xmer specs for Scott LC 21 or 130 Preamp for rewind...
  50. Loctal 6SN7?
  51. peavey heritage vtx how can i make it clean?
  52. Need some help with simulation
  53. output tranny for 6AK6
  54. What tubes for 7K6PP X-former
  55. Ham radio op makes his own triodes
  56. Newbie looking for some advice on mods and tubes for Cayin TA-30
  57. Power Transconductance Amp with Tubes, How?
  58. using the 6BX7 at low'ish current in Aikido
  59. What preamp should I build?
  60. Transformer hookup question.
  61. Home made vacuum tubes
  62. My New EL84 PP
  63. Hammond power transformer fillament rating
  64. Need help with a Russian Triode
  65. TRAFO NEEDED FOR EL84 pp
  66. Difference between 6JN6 (Berning output) and 6JB6 tubes?
  67. 2A3 SE Amp
  68. Soldering tubes directly to PCB?
  69. pa amp distortion at low volume
  70. Transformer input for guitar
  71. Potted transformers
  72. if this can works...
  73. Differential scope probes?
  74. Fisher X100B Iron
  75. Solid state power suppy for CAT SL-1
  76. Help with wiring a Hammond Power Transformer
  77. User manual for GTA SE-40 Tube Amp ?
  78. tube caps that fit.. anyone?
  79. Heater wires through conduit
  80. AB2 guitar amp design questions
  81. Wanted - Svet Sk4A bases
  82. AC Characteristics of Glow Tubes?
  83. Bargain Used Transformers: Where?
  84. Top cap tube users: pics of your amps?
  85. Question
  86. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  87. Audio Transformers 101
  88. Thinking about having a 211 SET amp built, anyone know of good schematics?
  89. 4-65A Triode curves?
  90. Is This A Good Reliable Tube Tester?
  91. Tube projects
  92. Push-Pull Cathode Bias Resistors
  93. Opinion on 300B SETs
  94. So how tattered is your Morgan Jones?
  95. Friend wants to buy a nice tube preamp
  96. Large Oil Capacitors
  97. Too awesome for words
  98. M65 stereo preamp question
  99. nasty buzz in old 35EH5 amp
  100. 6C33C tube stamp
  101. Question about VTV 6SN7 Schematic
  102. Simple Magic Eye Circuit Wanted
  103. Mute circuit on sonic frontier line one
  104. Data point software?
  105. MingDa MC-3R / icon audio la3 preamp mods
  106. Biasing
  107. Compactron characteristic curves?
  108. Analog Metric grounded grid preamp kit
  109. Possible group buy of Lundahl input/phase splitter transformers.
  110. Audio Measurements
  111. B/A 20-4 tube mono block??
  112. Strange find.. help ID?
  113. 813 Thoughts
  114. External 12V heater supply conversion question
  115. My Latest Acquisition
  116. 50/60/whatever cycle hum
  117. OEP input transformers. Anyone used ??
  118. Restack transformer from PP to SE
  119. Se 807??
  120. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  121. Question about phono preamp schematic
  122. Lectron JH50 unknown parts?
  123. Fostex or Car Speakers for My Tube Car Amp
  124. schematics? (also some questions)
  125. Regulated Power Supply. Bipolar, JFET or MOS?
  126. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  127. Blown up resistor in S-5 amp kit...
  128. EZ80 or 81
  129. Gun or Iron?
  130. Shanling SP-80C Problem - DC Spikes?!
  131. Silvertone Organ amp, weird osc section.
  132. Need some advice on a LTP input stage.
  133. CAT 110V to 220 V conversion
  134. When is a compactron not a compactron?
  135. Looking for big Ni lams
  136. Three PP KT88 designs. Which one ... (please;-)
  137. EAR 834P needing repair
  138. How to make non-polarized electrolytic cap?
  139. Toasted PW tranformer?
  140. Tube Cad from Glass-Ware questions
  141. U-links for earthing
  142. Supreme 45 tube amp
  143. Boxing Day Special
  144. Look what Santa brought!
  145. Soft Start for Tubes
  146. Need help to check out this preamp schematic.
  147. What dimensions for perforated AL sheet?
  148. NC pins on submin tubes
  149. Cheap alternative to EF86
  150. MOSFET follower driver oscillation
  151. Fender "Twin Reverb Amp" has no output.
  152. Hi-Fi system build
  153. Car Tube Amp
  154. Tube Identification
  155. Supratek schematics?
  156. Choice of OTL output capacitors
  157. Feedback scheme.
  158. Christmas Eve
  159. Best tubes for Scott 222
  160. HH Scott 222 speaker recommendations and upgrades
  161. mixing coupling cap types
  162. Transformer chassis layout
  163. SimpleSE / Edcor CXSE OPT
  164. Star ground help
  165. What causes my 0D3 to extinguish?
  166. converting UL in triode
  167. Beyer Dynamic BV35570
  168. Lundahl LL1527 phase-splitter
  169. Morgan Jones HPA ...strange startup behaviour
  170. Best Sounding Phono Input Tube
  171. We417+300b
  172. class-A PP amplifier with 2x 845 question
  173. Kismet-300B-amp
  174. Will differential share the same THD characteristics as SE, if same triode is used?
  175. The biggest bunch of tubes ever seen
  176. DHT AC Filament Noise
  177. augmented cathode follower?
  178. Tube amp find in old theater
  179. Is there a better amp kit????
  180. figuring amplification factor of a tube
  181. SE 6l6
  182. Need help
  183. Dynaco (Dynaclone) PA060 transformer
  184. Switching power supply for tube filaments possible???
  185. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  186. DN2540/2535 fun and games
  187. 6P3S SE amp requesting
  188. Newbie needs Magnavox console troubleshooting tips
  189. 6bBYGA x2 as full-wave rectifier?
  190. Digital volume/tone control in Tube amps
  191. plotting load-line for OTL amp?
  192. New SE 6P15P project
  193. New Production Shuguang Type 50 Tubes
  194. Running different tubes
  195. Fairchild 260 rebuild questions
  196. Filament Voltage vs. Hum
  197. drawing a loadline from schematics
  198. Know this tube? 10J12C or 10X12C ...
  199. Precision Fidelity - C7 Mods...help Wanted!
  200. stupid newbie: what is this transformer???
  201. Anyone else having problems with Mercury Magnetics transformers?
  202. EF86-EL84: too much gain!
  203. Balanced Power
  204. GTA 300B SE Mk.II Power Transformer
  205. Tube Shields
  206. Some basic questions about s-5 amp kit mods
  207. Novice Voltage Regulator Question
  208. The Critical Ear
  209. Tube matching service - As found on Craigslist
  210. 6j1 question
  211. Duosonic 40's era record player
  212. 6bl8 el84 nfb question
  213. 6T9 push pull
  214. 12AY7 circuit?
  215. E810F: RIAA circuits
  216. need EL519/6KG6 spice 3f4 model
  217. enough gain for James tone stack
  218. Anyone recognise this amp?
  219. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  220. matched tubes?
  221. List of current production types
  222. Soundcard greater than 24-bit
  223. Replacing Valves Leak Stereo 20
  224. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  225. I Damaged my Amp?
  226. EL84 Triode PP Design
  227. pentode with grid AND cathode tied to gnd?
  228. What d'you put in the PSU chassis, and what in the circuit chassis?
  229. a real no-brainer question about 1/2 tubes
  230. 813 power supply question
  231. ESR of motor-run caps?
  232. OPT-102 - data? (Audio Electronic Supply)
  233. Help me out with a circuit design
  234. Partial Feedback EL84PP - Not quite as expected (yet)
  235. Preamp suggestions - Help a hack have some fun
  236. 6GK6 Ultralinear
  237. Vacuum Rectifier Question
  238. LM4702 meets up with 6550's
  239. 6bx7gt envelope temperature
  240. Counterpoint SA 3 schematic
  241. Tubes measured in microhms = mA..?
  242. Checking ARC SP9
  243. 6J11 Datasheet anyone?
  244. Help cleaning tube pins
  245. Best way to use a PAIR of 6SL7’s to drive a 300B?
  246. preamp cathode bypass cap benefits
  247. EF184 or (EC)L82 radio amplifier?!
  248. 5687 for Aikido
  249. Pre Amplifier Out Sockets
  250. Recommended output valves for this transformer

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