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  1. E80CC aikido
  2. Heater wiring help!
  3. Differential output stage: cap voltage?
  4. 6C41C in a PSU regulator?
  5. Filament Wiring - Shielded vs. Twisted?
  6. Transformer reflected impedance games? Overspec'd output power?
  7. SE 6V6 cathode resistor value
  8. Very strange gremlins in my phono PS
  9. which kit to build - first kit ever
  10. Does anyone know the plate reistance of a 6CW7/ECC84
  11. Shindo Claret
  12. se, srpp, pcb design criteria
  13. Looks like a promising SE build ??
  14. Apologies to Alex Kitic- RH84 Three Channel?
  15. 6L6 AB1 Push-Pull
  16. Jadis JA-30
  17. Black Gate "snubbing"
  18. New Schematic - PP UL 6V6-types, CCS-fed
  19. build up a new line amp
  20. How do you make a DHT amp REALLY HUM FREE????
  21. Experience with AnTek OPTs?
  22. 6V6 PP AB1 circuit
  23. Help with powering down a trafo
  24. Computer program for tube curves and Spice models
  25. Some help/advice with a guitar amp layout.
  26. Physical orientation of transformers
  27. Which EL34 tubes for Hi Fi
  28. Choke input power supply, capacitor ratings
  29. EL36/6CM5 SE design critique
  30. New 6F6 Amplifier Project
  31. Transformerless Tube Amp
  32. GE sealants: which to use?
  33. Bias supply and grid current
  34. US Army Russian Electronics Dictionary
  35. Speaker Pop!
  36. Steve Bench RIAA preamp users
  37. MAC free schematic drawing software?
  38. Using James JS-6123HS with EL84 SE is overkilled?
  39. Volume pot for simple se
  40. s5electronics 16ls schematic
  41. New to valve amps - given a 'project'
  42. Are there any loctal PC sockets?
  43. cheap and easy tube preamp
  44. Stereo bass problem
  45. SRS-360 East German transmitting tubes
  46. What the heck does a getter do ?
  47. Capacitor polarization help!
  48. MasterSound Tube Amplifier
  49. PC900 / EC900 curves
  50. 2x 12AX7 preamp fuse value
  51. Crackling Noise in Tube Amp (only) & PC Sound Card
  52. The Mullard 3-3
  53. Audio Research D125 Schematic?
  54. Glass B1. Need advise
  55. Eagle Library for OPT?
  56. Computing or measuring anode curves w/ CFB
  57. Northlake PT ??
  58. Greatest circuit ever (or weirdest)
  59. Advise for nervous EL84 user
  60. K-12G problems
  61. Changing AC heaters to DC
  62. Phase change when adding gain stage?
  63. XiangSheng Amplifier
  64. Grid stopper resistor for 12B4A?
  65. Lundahl LL1620 SE-OPT : Ultra linear ?
  66. Thordarson transformers
  67. Ampeg SVT cloners, chime in!
  68. Electra Print & SAC ( Silk )?
  69. Audio Transformer articles I would like copies of !
  70. K-12 with headphones?
  71. cap wire lead covers
  72. Single ended amp, EL34, KT88 ideas??
  73. Kt-66 and Simple SE
  74. Wavebourn Pyramid - VII driver stage
  75. Mysterious OPT winding tap
  76. DHT…. Get rid of the Hum Pot!
  77. Operating Amp Without Load
  78. Tube choices for Simple SE?
  79. Looking for information on old thread
  80. Tube Leveling Amplifier
  81. Anyone with knowledge of the 12b4?
  82. 7695...useful audio tube??
  83. simple se blowing rectifier and fuse
  84. PSUD - How do interpret the results?
  85. Solder station
  86. TubeLab SE blowing fuse on B+ ramp up
  87. preamp for pl504 amp
  88. Resistor after volume pot
  89. 6021 Amp project..looking for some input
  90. 807 SE project started....
  91. Fun with glow tubes, a success story
  92. OPT question
  93. Sources for Replacement Fender Filter Caps
  94. Cheap and easy vacuum impregnation
  95. How to measure mains waveform safely?
  96. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual.
  97. Aikido Resistor Help
  98. Changing 6SQ7 to 6SL7 in SE amp
  99. Multi-tap OT
  100. harmon kardon a700 amp output trafo impedance
  101. An SE 813 OPT?? SP. Wound??who zat?
  102. Tube rectifier to diode
  103. The Trioderizer
  104. increasing coupling capacitor value in we 91
  105. diy SE Tube Amp
  106. Max power possible from 6L6 with 6.6k load?
  107. OPT grounding question
  108. Tubelab sse transformer wires
  109. SE sound vs Ultra Linear sound
  110. Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5
  111. 6N6P or E182cc spice
  112. Ecl82
  113. Zeiss Ikon Dominar L Amplifier
  114. Beginners attempt at SE 6EM7
  115. Changing 300B Tubelab SE to accomidate 50 triodes
  116. Subbing a 5751 with a 5755
  117. HELP repair a Yamaha T100C combo
  118. Sophia Electric 300B tube
  119. Screen drive and other P-P experiments
  120. Amplifier using a 833A
  121. Circuit help
  122. How much mis-match can an OT take?
  123. SE load mismatch, 8 or 6 or 4 ohms?
  124. Magnavox 196-BA => RH 84 conversion
  125. Capacitor voltage ratings
  126. 40W class A push pull amp with JJ 2A3-40w possible?
  127. "Designing tube preamplifier" article
  128. Valve Tester Guru Help
  129. 6GB5 and Variants as Screen Driven Amps
  130. Gyrator Question
  131. Suggestion Please - Curcuit Simulation & PCB Design Software
  132. Starting to understand.....
  133. Aureavox Arcana 81
  134. Impedance question
  135. spare transformer wires?
  136. Capacitors and maximum voltage ratings
  137. Do Sweep tubes Glow Blue?
  138. Any way to upgrade this circuit? (V. 40's phono amp.)
  139. About tube "matched pairs"
  140. Testing Gm without tube tester
  141. Best place to get Shuguang 300B tubes
  142. Old metal tubes
  143. LTSpice Simulation template?!
  144. 300B pushpull- A new schematic
  145. Drake transformer
  146. TL Audio VP-5051 Valve voice processor
  147. Vtl 750
  148. DC-coupling of tube stages
  149. ThermalTrak transistor application.
  150. weird old amp:need help
  151. Triode Electronics Mark III
  152. Scavenging a broken oscilloscope to turn it into a preamp ?
  153. Silmic caps in cathode bias. Any experience?
  154. Scott LK150 transformer
  155. With the Simple SE I lost 20lbs w/o diet or excercise and I feel great!
  156. Tube Amp / Pre-amp kit?
  157. anything that can go as a Rp.....
  158. Genelex gold lion el84 reissue - ARCING
  159. diy Ampeg preamp
  160. Bias Current Mythbuster?
  161. Exactness of feedback capacitors?
  162. 5608a
  163. You know that you are having a bad day when.......
  164. 1U5 amplifier design, Newbie
  165. 12AU7 Pre-amp Schematic Question
  166. Capacitor Question...
  167. Beam pentodes and suppressor-grid pentodes of same type
  168. Quick question about CT and FWB
  169. 46 and the Tubelab SE
  170. Frank's 6SN7 line stage / preamp with GlassWare PS-1?
  171. knobs, lights and switches?
  172. SimpleSE OP Hammond bigger than the 125ESE
  173. Speaker impedance linearisation
  174. Differential filter circuit: biasing problem
  175. Curves for 12AH7
  176. Schematic for Audio Note Japan Kassai
  177. Help with schematic understanding
  178. SEPP output transformer
  179. Fixed bias design question
  180. Strange bias circuit. WTF?
  181. 5687 preamp transformer
  182. Anyone know of a dual pentode suitable for a LTP.
  183. Output transformer current and power ratings
  184. Diodes to protect OT's..
  185. Simple SE: ???Dumb Tube Rectifier question???
  186. Speakers for tube amps
  187. Help on power supply
  188. Line output transformer question
  189. Solid vs stranded wire in amplifier circuits
  190. Screen Drive Push Pull ideas
  191. 12AT7/46 Direct Reactance Drive Amp
  192. Bridge rectifier vs Full wave rectifier
  193. Isolation Transformer Question
  194. Glow tubes as series regs ?
  195. Glow tube shunt reg stability
  196. Some interesting reading about Sweep tubes
  197. What is this?
  198. What's A "Timber bulb"?
  199. aikido/807PSE and local feedback
  200. Repairing paper in oil caps.
  201. Optoisolator compressor ideas
  202. Airgap for filament transformer ?
  203. Tube stereo for E 60 including TDA1541 cd player
  204. Bad Boy amplifier Tubelab.com style
  205. is there a typo in the Tubelab SE schematic?
  206. Theta Amp problem
  207. 12A_7 vs 6SN7EH vs EF86?
  208. Mixing two channels in the preamp or at the phase splitter?
  209. amp input cap for crossover
  210. Audio Transformer/Cathode Feedback Info
  211. Determining cathode resistor
  212. Tube Pin Schematic Question
  213. Simple SE blowing fuses
  214. Best looking tube?
  215. Identifying Stancor Power transformers
  216. HT crowbar
  217. "Bevois Valley" in triode, what to do with the feedback?
  218. Purple Glow
  219. When to use a grid leak resistor?
  220. Mcintosh MA 2275
  221. Marshall 18W clone (sort of)
  222. Cathode feedback on the simple SE
  223. Blowing output transformer
  224. Kenwood KW-44 hum
  225. Tube system for classical audio
  226. Novel method to reduce filament hum in SE Amp?
  227. Help with 6SN7 w/ CCS
  228. Fisher X-101-D
  229. best tube (not amp)
  230. Simple SE Cap and layout questions???
  231. Simple SE - one channel intermittent problem
  232. ML4/ML6 British triode
  233. transformer rubbish
  234. Identifying output transformer leads
  235. Grounding Aikido and F4
  236. Determining ratings for unknown Power Transformers
  237. Tube heaven - or tube hell?
  238. Fender "Evil Twin" Hi/Low output = same level
  239. Sub amp/speaker to compliment S5 electronics K 12 G tube amp
  240. Troubleshooting hum in 12b4 preamp.. finally almost done!!
  241. SE cathode bias question
  242. k-12G / K-12M with 4 Ohm speakers
  243. About united electron tube
  244. 6c33c-b & 6c33c-v
  245. would like a substitute for Sowter 3575-C
  246. My first tube project WIP
  247. Tube rectifiede +- supply...
  248. the buzzing from amplifiers
  249. MC prepre with submini tubes
  250. 12AU7 Preamp build

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