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  1. Quick question about star grounding
  2. 3K or 5K OPT in EL35 SimpleSE?
  3. Bogen L60 schematic
  4. k-12
  5. Suggestion on tube for CCS
  6. Whats the model for this?
  7. ECL 82 schematic to suggest
  8. Andrea Ciuffoli's KT88 PP
  9. Looking for comments on Welborne Labs PS10 reg. HT supply
  10. Thoughts and suggestions needed.
  11. PSU shunt capacitor selection
  12. Looking for comments in my first 300B project
  13. Transformer Coupling Questions
  14. ECL82 power supply question
  15. CGV-300B Amp Results...Fun.
  16. power transformer rating and tube current - SimpleSE
  17. Ping Drummerwill.
  18. Taking a Hammond 369BX filament winding to the limit?
  19. Using moter run caps in PSU.
  20. Speaker connect: Speakon or banana
  21. 50k or 100k output impedance.
  22. Need help remembering the name of a hybrid amplifier design book
  23. Measuring Output Impedance of Power Supply
  24. knob with long end for alpha pots
  25. IT tutorial n selection
  26. Anybody help identify these tubes
  27. CT wire -quick question
  28. New Amplifier
  29. Master Volume for Active Tube Crossover?
  30. Tube lifetime
  31. Raleigh Audio Preamp - somebody heard ?
  32. Mikael Abdellah SE KT88 ideas and questions
  33. Masco MA-8 for guitar
  34. Bogen CHB-35 to conversion to B-12/B-15
  35. Melos triode 200+ looking for spare parts
  36. Opinions on integrated amp project
  37. 6AL5 for clipping diodes?
  38. Confusion over Knight 600 tester numbers
  39. 12AU7A: I need fuzz, overdrive and distortion schematic
  40. 12AT7 vs 12AU7 (interchangeable?)
  41. Angela Electronics - Customer Service
  42. PAS visits the naughty side of town (red lit)
  43. Summing at the LTPI
  44. Test of ECC81 to 83
  45. Polypropylene caps
  46. Was this already posted here? Handmade tubes video
  47. Twist dc filament wire?
  48. Power transformer: How Big?
  49. Heater supply options and to Vhk rating of 6X4 & 6203
  50. Hickok TV-7A/U settings for 8417 tube?
  51. Hammond 125ESE and sections
  52. 6P15P hybrid amp schema?
  53. Switching voltage converter for HV supply
  54. VT4C output transformer
  55. Sound Multiplex Amp
  56. Suggestions needed for improving Rogers Cadet II PP power amplifier
  57. Adjustable Line out off of Extra Speaker Jack
  58. Transcendere Audio
  59. Wrong capacitors!
  60. 6LW6 operating points
  61. ?? xmer specs for Scott LC 21 or 130 Preamp for rewind...
  62. Loctal 6SN7?
  63. peavey heritage vtx how can i make it clean?
  64. Need some help with simulation
  65. output tranny for 6AK6
  66. What tubes for 7K6PP X-former
  67. Ham radio op makes his own triodes
  68. Newbie looking for some advice on mods and tubes for Cayin TA-30
  69. Power Transconductance Amp with Tubes, How?
  70. using the 6BX7 at low'ish current in Aikido
  71. What preamp should I build?
  72. Transformer hookup question.
  73. Home made vacuum tubes
  74. My New EL84 PP
  75. Hammond power transformer fillament rating
  76. Need help with a Russian Triode
  77. TRAFO NEEDED FOR EL84 pp
  78. Difference between 6JN6 (Berning output) and 6JB6 tubes?
  79. 2A3 SE Amp
  80. Soldering tubes directly to PCB?
  81. pa amp distortion at low volume
  82. Transformer input for guitar
  83. Potted transformers
  84. if this can works...
  85. Differential scope probes?
  86. Fisher X100B Iron
  87. Solid state power suppy for CAT SL-1
  88. Help with wiring a Hammond Power Transformer
  89. User manual for GTA SE-40 Tube Amp ?
  90. tube caps that fit.. anyone?
  91. Heater wires through conduit
  92. AB2 guitar amp design questions
  93. Wanted - Svet Sk4A bases
  94. AC Characteristics of Glow Tubes?
  95. Bargain Used Transformers: Where?
  96. Top cap tube users: pics of your amps?
  97. Question
  98. „New“ Pentode – measuring resistance between grids G2 and G3 – any idea?
  99. Audio Transformers 101
  100. Thinking about having a 211 SET amp built, anyone know of good schematics?
  101. 4-65A Triode curves?
  102. Is This A Good Reliable Tube Tester?
  103. Tube projects
  104. Push-Pull Cathode Bias Resistors
  105. Opinion on 300B SETs
  106. So how tattered is your Morgan Jones?
  107. Friend wants to buy a nice tube preamp
  108. Large Oil Capacitors
  109. Too awesome for words
  110. M65 stereo preamp question
  111. nasty buzz in old 35EH5 amp
  112. 6C33C tube stamp
  113. Question about VTV 6SN7 Schematic
  114. Simple Magic Eye Circuit Wanted
  115. Mute circuit on sonic frontier line one
  116. Data point software?
  117. MingDa MC-3R / icon audio la3 preamp mods
  118. Biasing
  119. Compactron characteristic curves?
  120. Analog Metric grounded grid preamp kit
  121. Possible group buy of Lundahl input/phase splitter transformers.
  122. Audio Measurements
  123. B/A 20-4 tube mono block??
  124. Strange find.. help ID?
  125. 813 Thoughts
  126. External 12V heater supply conversion question
  127. My Latest Acquisition
  128. 50/60/whatever cycle hum
  129. OEP input transformers. Anyone used ??
  130. Restack transformer from PP to SE
  131. Se 807??
  132. Min 9-pin or 7-pin sockets to fit octal-sized holes?
  133. Question about phono preamp schematic
  134. Lectron JH50 unknown parts?
  135. Fostex or Car Speakers for My Tube Car Amp
  136. schematics? (also some questions)
  137. Regulated Power Supply. Bipolar, JFET or MOS?
  138. UL to triode mode conversion on cathode bias amp-different cathode resistors needed?
  139. Blown up resistor in S-5 amp kit...
  140. EZ80 or 81
  141. Gun or Iron?
  142. Shanling SP-80C Problem - DC Spikes?!
  143. Silvertone Organ amp, weird osc section.
  144. Need some advice on a LTP input stage.
  145. CAT 110V to 220 V conversion
  146. When is a compactron not a compactron?
  147. Looking for big Ni lams
  148. Three PP KT88 designs. Which one ... (please;-)
  149. EAR 834P needing repair
  150. How to make non-polarized electrolytic cap?
  151. Toasted PW tranformer?
  152. Tube Cad from Glass-Ware questions
  153. U-links for earthing
  154. Supreme 45 tube amp
  155. Boxing Day Special
  156. Look what Santa brought!
  157. Soft Start for Tubes
  158. Need help to check out this preamp schematic.
  159. What dimensions for perforated AL sheet?
  160. NC pins on submin tubes
  161. Cheap alternative to EF86
  162. MOSFET follower driver oscillation
  163. Fender "Twin Reverb Amp" has no output.
  164. Hi-Fi system build
  165. Car Tube Amp
  166. Tube Identification
  167. Supratek schematics?
  168. Choice of OTL output capacitors
  169. Feedback scheme.
  170. Christmas Eve
  171. Best tubes for Scott 222
  172. HH Scott 222 speaker recommendations and upgrades
  173. mixing coupling cap types
  174. Transformer chassis layout
  175. SimpleSE / Edcor CXSE OPT
  176. Star ground help
  177. What causes my 0D3 to extinguish?
  178. converting UL in triode
  179. Beyer Dynamic BV35570
  180. Lundahl LL1527 phase-splitter
  181. Morgan Jones HPA ...strange startup behaviour
  182. Best Sounding Phono Input Tube
  183. We417+300b
  184. class-A PP amplifier with 2x 845 question
  185. Kismet-300B-amp
  186. Will differential share the same THD characteristics as SE, if same triode is used?
  187. The biggest bunch of tubes ever seen
  188. DHT AC Filament Noise
  189. augmented cathode follower?
  190. Tube amp find in old theater
  191. Is there a better amp kit????
  192. figuring amplification factor of a tube
  193. SE 6l6
  194. Need help
  195. Dynaco (Dynaclone) PA060 transformer
  196. Switching power supply for tube filaments possible???
  197. Mysterious UTC X-2806 / RCA 949426-2 Transformer
  198. DN2540/2535 fun and games
  199. 6P3S SE amp requesting
  200. Newbie needs Magnavox console troubleshooting tips
  201. 6bBYGA x2 as full-wave rectifier?
  202. Digital volume/tone control in Tube amps
  203. plotting load-line for OTL amp?
  204. New SE 6P15P project
  205. New Production Shuguang Type 50 Tubes
  206. Running different tubes
  207. Fairchild 260 rebuild questions
  208. Filament Voltage vs. Hum
  209. drawing a loadline from schematics
  210. Know this tube? 10J12C or 10X12C ...
  211. Precision Fidelity - C7 Mods...help Wanted!
  212. stupid newbie: what is this transformer???
  213. Anyone else having problems with Mercury Magnetics transformers?
  214. EF86-EL84: too much gain!
  215. Balanced Power
  216. GTA 300B SE Mk.II Power Transformer
  217. Tube Shields
  218. Some basic questions about s-5 amp kit mods
  219. Novice Voltage Regulator Question
  220. The Critical Ear
  221. Tube matching service - As found on Craigslist
  222. 6j1 question
  223. Duosonic 40's era record player
  224. 6bl8 el84 nfb question
  225. 6T9 push pull
  226. 12AY7 circuit?
  227. E810F: RIAA circuits
  228. need EL519/6KG6 spice 3f4 model
  229. enough gain for James tone stack
  230. Anyone recognise this amp?
  231. Retubing my amp (EL84, ECC81, ECC83) - Tube recommendations?
  232. matched tubes?
  233. List of current production types
  234. Soundcard greater than 24-bit
  235. Replacing Valves Leak Stereo 20
  236. Help designing Class-A, tube, transformer coupled, studio grade pre-amp
  237. I Damaged my Amp?
  238. EL84 Triode PP Design
  239. pentode with grid AND cathode tied to gnd?
  240. What d'you put in the PSU chassis, and what in the circuit chassis?
  241. a real no-brainer question about 1/2 tubes
  242. 813 power supply question
  243. ESR of motor-run caps?
  244. OPT-102 - data? (Audio Electronic Supply)
  245. Help me out with a circuit design
  246. Partial Feedback EL84PP - Not quite as expected (yet)
  247. Preamp suggestions - Help a hack have some fun
  248. 6GK6 Ultralinear
  249. Vacuum Rectifier Question
  250. LM4702 meets up with 6550's

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