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  1. Whats the model for this?
  2. ECL 82 schematic to suggest
  3. Andrea Ciuffoli's KT88 PP
  4. Looking for comments on Welborne Labs PS10 reg. HT supply
  5. Thoughts and suggestions needed.
  6. PSU shunt capacitor selection
  7. Looking for comments in my first 300B project
  8. Transformer Coupling Questions
  9. ECL82 power supply question
  10. CGV-300B Amp Results...Fun.
  11. power transformer rating and tube current - SimpleSE
  12. Ping Drummerwill.
  13. Taking a Hammond 369BX filament winding to the limit?
  14. Using moter run caps in PSU.
  15. Speaker connect: Speakon or banana
  16. 50k or 100k output impedance.
  17. Need help remembering the name of a hybrid amplifier design book
  18. Measuring Output Impedance of Power Supply
  19. knob with long end for alpha pots
  20. IT tutorial n selection
  21. Anybody help identify these tubes
  22. CT wire -quick question
  23. New Amplifier
  24. Master Volume for Active Tube Crossover?
  25. Tube lifetime
  26. Raleigh Audio Preamp - somebody heard ?
  27. Mikael Abdellah SE KT88 ideas and questions
  28. Masco MA-8 for guitar
  29. Bogen CHB-35 to conversion to B-12/B-15
  30. Melos triode 200+ looking for spare parts
  31. Opinions on integrated amp project
  32. 6AL5 for clipping diodes?
  33. Confusion over Knight 600 tester numbers
  34. 12AU7A: I need fuzz, overdrive and distortion schematic
  35. 12AT7 vs 12AU7 (interchangeable?)
  36. Angela Electronics - Customer Service
  37. PAS visits the naughty side of town (red lit)
  38. Summing at the LTPI
  39. Test of ECC81 to 83
  40. Polypropylene caps
  41. Was this already posted here? Handmade tubes video
  42. Twist dc filament wire?
  43. Power transformer: How Big?
  44. Heater supply options and to Vhk rating of 6X4 & 6203
  45. Hickok TV-7A/U settings for 8417 tube?
  46. Hammond 125ESE and sections
  47. 6P15P hybrid amp schema?
  48. Switching voltage converter for HV supply
  49. VT4C output transformer
  50. Sound Multiplex Amp
  51. Suggestions needed for improving Rogers Cadet II PP power amplifier
  52. Adjustable Line out off of Extra Speaker Jack
  53. Transcendere Audio
  54. Wrong capacitors!
  55. 6LW6 operating points
  56. ?? xmer specs for Scott LC 21 or 130 Preamp for rewind...
  57. Loctal 6SN7?
  58. peavey heritage vtx how can i make it clean?
  59. Need some help with simulation
  60. output tranny for 6AK6
  61. What tubes for 7K6PP X-former
  62. Ham radio op makes his own triodes
  63. Newbie looking for some advice on mods and tubes for Cayin TA-30
  64. Power Transconductance Amp with Tubes, How?
  65. using the 6BX7 at low'ish current in Aikido
  66. What preamp should I build?
  67. Transformer hookup question.
  68. Home made vacuum tubes
  69. My New EL84 PP
  70. Hammond power transformer fillament rating
  71. Need help with a Russian Triode
  72. TRAFO NEEDED FOR EL84 pp
  73. Difference between 6JN6 (Berning output) and 6JB6 tubes?
  74. 2A3 SE Amp
  75. Soldering tubes directly to PCB?
  76. pa amp distortion at low volume
  77. Transformer input for guitar
  78. Potted transformers
  79. if this can works...
  80. Differential scope probes?
  81. Fisher X100B Iron
  82. Solid state power suppy for CAT SL-1
  83. Help with wiring a Hammond Power Transformer
  84. User manual for GTA SE-40 Tube Amp ?
  85. tube caps that fit.. anyone?
  86. Heater wires through conduit
  87. AB2 guitar amp design questions
  88. Wanted - Svet Sk4A bases
  89. AC Characteristics of Glow Tubes?
  90. Bargain Used Transformers: Where?
  91. Top cap tube users: pics of your amps?
  92. Question
  93. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  94. Audio Transformers 101
  95. Thinking about having a 211 SET amp built, anyone know of good schematics?
  96. 4-65A Triode curves?
  97. Is This A Good Reliable Tube Tester?
  98. Tube projects
  99. Push-Pull Cathode Bias Resistors
  100. Opinion on 300B SETs
  101. So how tattered is your Morgan Jones?
  102. Friend wants to buy a nice tube preamp
  103. Large Oil Capacitors
  104. Too awesome for words
  105. M65 stereo preamp question
  106. nasty buzz in old 35EH5 amp
  107. 6C33C tube stamp
  108. Question about VTV 6SN7 Schematic
  109. Simple Magic Eye Circuit Wanted
  110. Mute circuit on sonic frontier line one
  111. Data point software?
  112. MingDa MC-3R / icon audio la3 preamp mods
  113. Biasing
  114. Compactron characteristic curves?
  115. Analog Metric grounded grid preamp kit
  116. Possible group buy of Lundahl input/phase splitter transformers.
  117. Audio Measurements
  118. B/A 20-4 tube mono block??
  119. Strange find.. help ID?
  120. 813 Thoughts
  121. External 12V heater supply conversion question
  122. My Latest Acquisition
  123. 50/60/whatever cycle hum
  124. OEP input transformers. Anyone used ??
  125. Restack transformer from PP to SE
  126. Se 807??
  127. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  128. Question about phono preamp schematic
  129. Lectron JH50 unknown parts?
  130. Fostex or Car Speakers for My Tube Car Amp
  131. schematics? (also some questions)
  132. Regulated Power Supply. Bipolar, JFET or MOS?
  133. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  134. Blown up resistor in S-5 amp kit...
  135. EZ80 or 81
  136. Gun or Iron?
  137. Shanling SP-80C Problem - DC Spikes?!
  138. Silvertone Organ amp, weird osc section.
  139. Need some advice on a LTP input stage.
  140. CAT 110V to 220 V conversion
  141. When is a compactron not a compactron?
  142. Looking for big Ni lams
  143. Three PP KT88 designs. Which one ... (please;-)
  144. EAR 834P needing repair
  145. How to make non-polarized electrolytic cap?
  146. Toasted PW tranformer?
  147. Tube Cad from Glass-Ware questions
  148. U-links for earthing
  149. Supreme 45 tube amp
  150. Boxing Day Special
  151. Look what Santa brought!
  152. Soft Start for Tubes
  153. Need help to check out this preamp schematic.
  154. What dimensions for perforated AL sheet?
  155. NC pins on submin tubes
  156. Cheap alternative to EF86
  157. MOSFET follower driver oscillation
  158. Fender "Twin Reverb Amp" has no output.
  159. Hi-Fi system build
  160. Car Tube Amp
  161. Tube Identification
  162. Supratek schematics?
  163. Choice of OTL output capacitors
  164. Feedback scheme.
  165. Christmas Eve
  166. Best tubes for Scott 222
  167. HH Scott 222 speaker recommendations and upgrades
  168. mixing coupling cap types
  169. Transformer chassis layout
  170. SimpleSE / Edcor CXSE OPT
  171. Star ground help
  172. What causes my 0D3 to extinguish?
  173. converting UL in triode
  174. Beyer Dynamic BV35570
  175. Lundahl LL1527 phase-splitter
  176. Morgan Jones HPA ...strange startup behaviour
  177. Best Sounding Phono Input Tube
  178. We417+300b
  179. class-A PP amplifier with 2x 845 question
  180. Kismet-300B-amp
  181. Will differential share the same THD characteristics as SE, if same triode is used?
  182. The biggest bunch of tubes ever seen
  183. DHT AC Filament Noise
  184. augmented cathode follower?
  185. Tube amp find in old theater
  186. Is there a better amp kit????
  187. figuring amplification factor of a tube
  188. SE 6l6
  189. Need help
  190. Dynaco (Dynaclone) PA060 transformer
  191. Switching power supply for tube filaments possible???
  192. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  193. DN2540/2535 fun and games
  194. 6P3S SE amp requesting
  195. Newbie needs Magnavox console troubleshooting tips
  196. 6bBYGA x2 as full-wave rectifier?
  197. Digital volume/tone control in Tube amps
  198. plotting load-line for OTL amp?
  199. New SE 6P15P project
  200. New Production Shuguang Type 50 Tubes
  201. Running different tubes
  202. Fairchild 260 rebuild questions
  203. Filament Voltage vs. Hum
  204. drawing a loadline from schematics
  205. Know this tube? 10J12C or 10X12C ...
  206. Precision Fidelity - C7 Mods...help Wanted!
  207. stupid newbie: what is this transformer???
  208. Anyone else having problems with Mercury Magnetics transformers?
  209. EF86-EL84: too much gain!
  210. Balanced Power
  211. GTA 300B SE Mk.II Power Transformer
  212. Tube Shields
  213. Some basic questions about s-5 amp kit mods
  214. Novice Voltage Regulator Question
  215. The Critical Ear
  216. Tube matching service - As found on Craigslist
  217. 6j1 question
  218. Duosonic 40's era record player
  219. 6bl8 el84 nfb question
  220. 6T9 push pull
  221. 12AY7 circuit?
  222. E810F: RIAA circuits
  223. need EL519/6KG6 spice 3f4 model
  224. enough gain for James tone stack
  225. Anyone recognise this amp?
  226. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  227. matched tubes?
  228. List of current production types
  229. Soundcard greater than 24-bit
  230. Replacing Valves Leak Stereo 20
  231. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  232. I Damaged my Amp?
  233. EL84 Triode PP Design
  234. pentode with grid AND cathode tied to gnd?
  235. What d'you put in the PSU chassis, and what in the circuit chassis?
  236. a real no-brainer question about 1/2 tubes
  237. 813 power supply question
  238. ESR of motor-run caps?
  239. OPT-102 - data? (Audio Electronic Supply)
  240. Help me out with a circuit design
  241. Partial Feedback EL84PP - Not quite as expected (yet)
  242. Preamp suggestions - Help a hack have some fun
  243. 6GK6 Ultralinear
  244. Vacuum Rectifier Question
  245. LM4702 meets up with 6550's
  246. 6bx7gt envelope temperature
  247. Counterpoint SA 3 schematic
  248. Tubes measured in microhms = mA..?
  249. Checking ARC SP9
  250. 6J11 Datasheet anyone?

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