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  1. Solder station
  2. TubeLab SE blowing fuse on B+ ramp up
  3. preamp for pl504 amp
  4. Resistor after volume pot
  5. 6021 Amp project..looking for some input
  6. 807 SE project started....
  7. Fun with glow tubes, a success story
  8. OPT question
  9. Cheap and easy vacuum impregnation
  10. How to measure mains waveform safely?
  11. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual.
  12. Aikido Resistor Help
  13. Changing 6SQ7 to 6SL7 in SE amp
  14. Multi-tap OT
  15. harmon kardon a700 amp output trafo impedance
  16. An SE 813 OPT?? SP. Wound??who zat?
  17. Tube rectifier to diode
  18. The Trioderizer
  19. increasing coupling capacitor value in we 91
  20. diy SE Tube Amp
  21. Max power possible from 6L6 with 6.6k load?
  22. OPT grounding question
  23. Tubelab sse transformer wires
  24. SE sound vs Ultra Linear sound
  25. Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5
  26. 6N6P or E182cc spice
  27. Ecl82
  28. Zeiss Ikon Dominar L Amplifier
  29. Beginners attempt at SE 6EM7
  30. Changing 300B Tubelab SE to accomidate 50 triodes
  31. Subbing a 5751 with a 5755
  32. Sophia Electric 300B tube
  33. Screen drive and other P-P experiments
  34. Amplifier using a 833A
  35. Circuit help
  36. How much mis-match can an OT take?
  37. SE load mismatch, 8 or 6 or 4 ohms?
  38. Magnavox 196-BA => RH 84 conversion
  39. Capacitor voltage ratings
  40. 40W class A push pull amp with JJ 2A3-40w possible?
  41. "Designing tube preamplifier" article
  42. Valve Tester Guru Help
  43. 6GB5 and Variants as Screen Driven Amps
  44. Gyrator Question
  45. Suggestion Please - Curcuit Simulation & PCB Design Software
  46. Starting to understand.....
  47. Aureavox Arcana 81
  48. Impedance question
  49. spare transformer wires?
  50. Capacitors and maximum voltage ratings
  51. Do Sweep tubes Glow Blue?
  52. Any way to upgrade this circuit? (V. 40's phono amp.)
  53. About tube "matched pairs"
  54. Testing Gm without tube tester
  55. Best place to get Shuguang 300B tubes
  56. Old metal tubes
  57. LTSpice Simulation template?!
  58. 300B pushpull- A new schematic
  59. Drake transformer
  60. TL Audio VP-5051 Valve voice processor
  61. Vtl 750
  62. DC-coupling of tube stages
  63. ThermalTrak transistor application.
  64. weird old amp:need help
  65. Triode Electronics Mark III
  66. Scavenging a broken oscilloscope to turn it into a preamp ?
  67. Silmic caps in cathode bias. Any experience?
  68. Scott LK150 transformer
  69. With the Simple SE I lost 20lbs w/o diet or excercise and I feel great!
  70. Tube Amp / Pre-amp kit?
  71. anything that can go as a Rp.....
  72. Genelex gold lion el84 reissue - ARCING
  73. Bias Current Mythbuster?
  74. Exactness of feedback capacitors?
  75. 5608a
  76. You know that you are having a bad day when.......
  77. 1U5 amplifier design, Newbie
  78. 12AU7 Pre-amp Schematic Question
  79. Capacitor Question...
  80. Beam pentodes and suppressor-grid pentodes of same type
  81. Quick question about CT and FWB
  82. 46 and the Tubelab SE
  83. Frank's 6SN7 line stage / preamp with GlassWare PS-1?
  84. knobs, lights and switches?
  85. SimpleSE OP Hammond bigger than the 125ESE
  86. Speaker impedance linearisation
  87. Differential filter circuit: biasing problem
  88. Curves for 12AH7
  89. Schematic for Audio Note Japan Kassai
  90. Help with schematic understanding
  91. SEPP output transformer
  92. Fixed bias design question
  93. Strange bias circuit. WTF?
  94. 5687 preamp transformer
  95. Anyone know of a dual pentode suitable for a LTP.
  96. Output transformer current and power ratings
  97. Diodes to protect OT's..
  98. Simple SE: ???Dumb Tube Rectifier question???
  99. Speakers for tube amps
  100. Help on power supply
  101. Line output transformer question
  102. Solid vs stranded wire in amplifier circuits
  103. Screen Drive Push Pull ideas
  104. 12AT7/46 Direct Reactance Drive Amp
  105. Bridge rectifier vs Full wave rectifier
  106. Isolation Transformer Question
  107. Glow tubes as series regs ?
  108. Glow tube shunt reg stability
  109. Some interesting reading about Sweep tubes
  110. What is this?
  111. What's A "Timber bulb"?
  112. aikido/807PSE and local feedback
  113. Repairing paper in oil caps.
  114. Optoisolator compressor ideas
  115. Airgap for filament transformer ?
  116. Tube stereo for E 60 including TDA1541 cd player
  117. Bad Boy amplifier Tubelab.com style
  118. is there a typo in the Tubelab SE schematic?
  119. Theta Amp problem
  120. 12A_7 vs 6SN7EH vs EF86?
  121. Mixing two channels in the preamp or at the phase splitter?
  122. amp input cap for crossover
  123. Audio Transformer/Cathode Feedback Info
  124. Determining cathode resistor
  125. Tube Pin Schematic Question
  126. Simple SE blowing fuses
  127. Best looking tube?
  128. Identifying Stancor Power transformers
  129. HT crowbar
  130. "Bevois Valley" in triode, what to do with the feedback?
  131. Purple Glow
  132. When to use a grid leak resistor?
  133. Mcintosh MA 2275
  134. Cathode feedback on the simple SE
  135. Blowing output transformer
  136. Kenwood KW-44 hum
  137. Tube system for classical audio
  138. Novel method to reduce filament hum in SE Amp?
  139. Help with 6SN7 w/ CCS
  140. Fisher X-101-D
  141. best tube (not amp)
  142. Simple SE Cap and layout questions???
  143. Simple SE - one channel intermittent problem
  144. ML4/ML6 British triode
  145. transformer rubbish
  146. Identifying output transformer leads
  147. Grounding Aikido and F4
  148. Determining ratings for unknown Power Transformers
  149. Tube heaven - or tube hell?
  150. Sub amp/speaker to compliment S5 electronics K 12 G tube amp
  151. Troubleshooting hum in 12b4 preamp.. finally almost done!!
  152. SE cathode bias question
  153. k-12G / K-12M with 4 Ohm speakers
  154. About united electron tube
  155. 6c33c-b & 6c33c-v
  156. would like a substitute for Sowter 3575-C
  157. My first tube project WIP
  158. Tube rectifiede +- supply...
  159. the buzzing from amplifiers
  160. MC prepre with submini tubes
  161. 12AU7 Preamp build
  162. Bias/ Plate dissipation question
  163. Has anyone screen driven an EL84?
  164. tube pre amp for phone stage
  165. 6080 se cathode follower
  166. Amplifier suggestions for EPA OPT please
  167. Which tube? How much power can it produce?
  168. Graaf GM20 mods - help!
  169. xpp amplifier question
  170. 520v in PP UL...?
  171. New ST-70 blowing 3 amp slow blow fuse
  172. Was There a Heathkit W-1M or WM?
  173. 8ohm speakers 4ohm tap
  174. Upgrading the Conrad Johnson Premier Fourteen preamp
  175. Noob's first build !!!!
  176. 6sf5gt ??
  177. Measuring technics practical, the allaround reference method?
  178. 2A3 or KT88 ?
  179. What to build with these tubes?
  180. line output transformer help
  181. 6L6GC Options and Flavors
  182. Chinese Buffer Amp, Useful?
  183. 6C33C SE Amp - Ideas on refinement?
  184. 6BM8 Equivalent
  185. Newbie wants to rebuild a Stromberg Carlson ASR-433
  186. RH84 questions
  187. VTL Manley 807 push pull ultra linear
  188. Seeking Pentode-Triode with a 12AX7 half...
  189. Modern tube amplifier designs?
  190. 6n6p transformer output impedance
  191. 814 triode curves
  192. Bias Question
  193. Building a variac
  194. Is my 300B tube dead?
  195. One channel quiet - any bright ideas?
  196. Saw them coming (stupid prices on ebay)
  197. EL36/6CM5 pp design critique
  198. Driving Raven R2 with tubes
  199. Does Anyone Know What This Is?
  200. Need help with tubes problem...
  201. 6V6GT push pull NFB resistor value
  202. Power cord for single ended triode
  203. Virtual chokes
  204. 12AU7 based preamp hums when output cable is touched!
  205. Possible Test equipment find.
  206. 6ak5-45
  207. Using coax for signal wiring?
  208. Chassis Plate Finish
  209. Schade84
  210. Fisher 800c selenium rectifier pictures
  211. Looking for tips on operating points for tubes in anode follower ...
  212. Transformer in the cathodes ??
  213. Fisher 800c static,crackle
  214. 19J6 replacement
  215. Newbie tube buffer kit
  216. Simple se parts, all needed?
  217. Any recommendations for tube for vari-mu compressor?
  218. AMC CVT 3030 Bias Procedure
  219. Anyone used a edcor cxpp100-ms-5k OT
  220. Noisy gain boost
  221. Troubleshooting hum issues with batteries?
  222. Rectifying Heater Supply
  223. tube heater over voltage!please help...
  224. rca 829b bias ? Audioromy 828
  225. 10k winding, 100k pot
  226. What is the definition of a 'good tube'?
  227. 3-stage DC-coupled Ampl
  228. 1946 Philco Tube Receiver
  229. A New Source for James Transformers
  230. Edcor Site Down? Gone? anyone know anything?
  231. Please suggest practical DIY uses for these BIG oil caps
  232. How to calculate DRD amps..
  233. PL-519 Tube - Tell me more please...
  234. Need ideas for amp with 2A3, One Electron UBT-3
  235. Favourites discrete brand for tube amp
  236. Pharmicia EPS500/400 Power supply - tube use
  237. Black Art Audio
  238. 12AX7/12BH7 Hammond Tube Preamp Project
  239. Dampen transformer endbells?
  240. Do I have DC on my AC line?
  241. GM-70 cathode feed SE amplifier
  242. Rogers cadet mk 2 newbie project experience required
  243. Mcintosh amps transformer rewinding, help needed please!
  244. Using an output tranny from a stereo for a single-ended amplifier ?
  245. 6336A Single Ended.
  246. UA 175 Urei 175
  247. Morgan Jones 5842 RIAA
  248. Question about current ratings of Hammond 300 series power transformers.
  249. Cathode Windings
  250. Phono stage for 12B4 amp [from previous thread]

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