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  1. Please help ID this DIY tube monoblocks
  2. Amp thinks it's a receiver ??
  3. Anyone remember heathkit s99?
  4. Blue Voodoo Solid State Rects to Tube Rects?
  5. Renovation of fifty years old tube amplifier
  6. Big Boss: a simple and basic el84 PP amp in progress
  7. Line Stage for Mikael SE KT88
  8. DIY tube guitar amp oscillating, please help!
  9. Philips EL3536
  10. Tube Tester's
  11. Counterpoint SA-5000 P.S.U part identification needed
  12. 6GU7 in an Aikido?
  13. suggest about 9002/vt202 preamp please
  14. 7591a Alternatives
  15. tube rectifier plug in s-s replacement
  16. Oscillation in tube amps
  17. simple se cathode resistor question
  18. 6GT5 audio amp?
  19. How can a resistor "sound" good?
  20. Pin numbering, viewed from bottom or top?
  21. The Hybrid Class A amplifier
  22. 485V Regulated Power Supply
  23. 0B3 Glows Orange
  24. New Reissue tubes...Good/Bad???
  25. PP amp design , your thoughts please.
  26. Aikido + Phono section preamp
  27. Newcomb el84 amp
  28. Any Australians want to share shipping for valves from ESRC?
  29. 5718 Nuvistor ?
  30. Trimmer pot source?
  31. Pentode Miller Capacitance, and which spec value to use?
  32. Brother can you spare a preamp design?
  33. Reducing tremolo beating
  34. Russian tube equivelants
  35. Another question about russian tubes
  36. Why match tubes?
  37. My XPP OTL Headphoneamp
  38. Joining the Tubelab SE club
  39. Simple heater question
  40. Fender always taking care of tubes....
  41. Need small SET transformer (12B4)
  42. Red Hot 6L6GC
  43. How do these curves look?
  44. Why does lowering screen voltage reduce headroom?
  45. Class A2 Direct MOSFET Coupled SE
  46. Volume Surges Fender "The Twin" - transformer going?
  47. simple SE questions
  48. Best tubes for ~100w 1.9k p-p?
  49. Installing bleeding resistors
  50. Capacitor Comparison Conundrum
  51. Tubelab SE socket raise
  52. RH84 finish!
  53. cathode biasing question
  54. Modding an old tube amp???
  55. More snake oil
  56. simple se success!
  57. Rectifier swap out?
  58. Input impedance of tubelab simple se
  59. Capacitor tolerance
  60. Please comment my F2a SE schematic
  61. E80CC aikido
  62. Heater wiring help!
  63. Differential output stage: cap voltage?
  64. 6C41C in a PSU regulator?
  65. Filament Wiring - Shielded vs. Twisted?
  66. Transformer reflected impedance games? Overspec'd output power?
  67. SE 6V6 cathode resistor value
  68. Very strange gremlins in my phono PS
  69. which kit to build - first kit ever
  70. Does anyone know the plate reistance of a 6CW7/ECC84
  71. Shindo Claret
  72. se, srpp, pcb design criteria
  73. Looks like a promising SE build ??
  74. Apologies to Alex Kitic- RH84 Three Channel?
  75. 6L6 AB1 Push-Pull
  76. Jadis JA-30
  77. Black Gate "snubbing"
  78. New Schematic - PP UL 6V6-types, CCS-fed
  79. build up a new line amp
  80. How do you make a DHT amp REALLY HUM FREE????
  81. Experience with AnTek OPTs?
  82. 6V6 PP AB1 circuit
  83. Help with powering down a trafo
  84. Computer program for tube curves and Spice models
  85. Some help/advice with a guitar amp layout.
  86. Physical orientation of transformers
  87. Which EL34 tubes for Hi Fi
  88. Choke input power supply, capacitor ratings
  89. EL36/6CM5 SE design critique
  90. New 6F6 Amplifier Project
  91. Transformerless Tube Amp
  92. GE sealants: which to use?
  93. Bias supply and grid current
  94. US Army Russian Electronics Dictionary
  95. Speaker Pop!
  96. Steve Bench RIAA preamp users
  97. MAC free schematic drawing software?
  98. Using James JS-6123HS with EL84 SE is overkilled?
  99. Volume pot for simple se
  100. s5electronics 16ls schematic
  101. New to valve amps - given a 'project'
  102. Are there any loctal PC sockets?
  103. cheap and easy tube preamp
  104. Stereo bass problem
  105. SRS-360 East German transmitting tubes
  106. What the heck does a getter do ?
  107. Capacitor polarization help!
  108. MasterSound Tube Amplifier
  109. PC900 / EC900 curves
  110. 2x 12AX7 preamp fuse value
  111. Crackling Noise in Tube Amp (only) & PC Sound Card
  112. The Mullard 3-3
  113. Audio Research D125 Schematic?
  114. Glass B1. Need advise
  115. Eagle Library for OPT?
  116. Computing or measuring anode curves w/ CFB
  117. Northlake PT ??
  118. Greatest circuit ever (or weirdest)
  119. Advise for nervous EL84 user
  120. K-12G problems
  121. Changing AC heaters to DC
  122. Phase change when adding gain stage?
  123. XiangSheng Amplifier
  124. Grid stopper resistor for 12B4A?
  125. Lundahl LL1620 SE-OPT : Ultra linear ?
  126. Thordarson transformers
  127. Ampeg SVT cloners, chime in!
  128. Electra Print & SAC ( Silk )?
  129. Audio Transformer articles I would like copies of !
  130. K-12 with headphones?
  131. cap wire lead covers
  132. Single ended amp, EL34, KT88 ideas??
  133. Kt-66 and Simple SE
  134. Wavebourn Pyramid - VII driver stage
  135. Mysterious OPT winding tap
  136. DHT…. Get rid of the Hum Pot!
  137. Operating Amp Without Load
  138. Tube choices for Simple SE?
  139. Looking for information on old thread
  140. Tube Leveling Amplifier
  141. Anyone with knowledge of the 12b4?
  142. 7695...useful audio tube??
  143. simple se blowing rectifier and fuse
  144. PSUD - How do interpret the results?
  145. Solder station
  146. TubeLab SE blowing fuse on B+ ramp up
  147. preamp for pl504 amp
  148. Resistor after volume pot
  149. 6021 Amp project..looking for some input
  150. 807 SE project started....
  151. Fun with glow tubes, a success story
  152. OPT question
  153. Sources for Replacement Fender Filter Caps
  154. Cheap and easy vacuum impregnation
  155. How to measure mains waveform safely?
  156. Wanted - High Power, High Voltage, Audio Frequency Transformer Manual.
  157. Aikido Resistor Help
  158. Changing 6SQ7 to 6SL7 in SE amp
  159. Multi-tap OT
  160. harmon kardon a700 amp output trafo impedance
  161. An SE 813 OPT?? SP. Wound??who zat?
  162. Tube rectifier to diode
  163. The Trioderizer
  164. increasing coupling capacitor value in we 91
  165. diy SE Tube Amp
  166. Max power possible from 6L6 with 6.6k load?
  167. OPT grounding question
  168. Tubelab sse transformer wires
  169. SE sound vs Ultra Linear sound
  170. Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5
  171. 6N6P or E182cc spice
  172. Ecl82
  173. Zeiss Ikon Dominar L Amplifier
  174. Beginners attempt at SE 6EM7
  175. Changing 300B Tubelab SE to accomidate 50 triodes
  176. Subbing a 5751 with a 5755
  177. HELP repair a Yamaha T100C combo
  178. Sophia Electric 300B tube
  179. Screen drive and other P-P experiments
  180. Amplifier using a 833A
  181. Circuit help
  182. How much mis-match can an OT take?
  183. SE load mismatch, 8 or 6 or 4 ohms?
  184. Magnavox 196-BA => RH 84 conversion
  185. Capacitor voltage ratings
  186. 40W class A push pull amp with JJ 2A3-40w possible?
  187. "Designing tube preamplifier" article
  188. Valve Tester Guru Help
  189. 6GB5 and Variants as Screen Driven Amps
  190. Gyrator Question
  191. Suggestion Please - Curcuit Simulation & PCB Design Software
  192. Starting to understand.....
  193. Aureavox Arcana 81
  194. Impedance question
  195. spare transformer wires?
  196. Capacitors and maximum voltage ratings
  197. Do Sweep tubes Glow Blue?
  198. Any way to upgrade this circuit? (V. 40's phono amp.)
  199. About tube "matched pairs"
  200. Testing Gm without tube tester
  201. Best place to get Shuguang 300B tubes
  202. Old metal tubes
  203. LTSpice Simulation template?!
  204. 300B pushpull- A new schematic
  205. Drake transformer
  206. TL Audio VP-5051 Valve voice processor
  207. Vtl 750
  208. DC-coupling of tube stages
  209. ThermalTrak transistor application.
  210. weird old amp:need help
  211. Triode Electronics Mark III
  212. Scavenging a broken oscilloscope to turn it into a preamp ?
  213. Silmic caps in cathode bias. Any experience?
  214. Scott LK150 transformer
  215. With the Simple SE I lost 20lbs w/o diet or excercise and I feel great!
  216. Tube Amp / Pre-amp kit?
  217. anything that can go as a Rp.....
  218. Genelex gold lion el84 reissue - ARCING
  219. diy Ampeg preamp
  220. Bias Current Mythbuster?
  221. Exactness of feedback capacitors?
  222. 5608a
  223. You know that you are having a bad day when.......
  224. 1U5 amplifier design, Newbie
  225. 12AU7 Pre-amp Schematic Question
  226. Capacitor Question...
  227. Beam pentodes and suppressor-grid pentodes of same type
  228. Quick question about CT and FWB
  229. 46 and the Tubelab SE
  230. Frank's 6SN7 line stage / preamp with GlassWare PS-1?
  231. knobs, lights and switches?
  232. SimpleSE OP Hammond bigger than the 125ESE
  233. Speaker impedance linearisation
  234. Differential filter circuit: biasing problem
  235. Curves for 12AH7
  236. Schematic for Audio Note Japan Kassai
  237. Help with schematic understanding
  238. SEPP output transformer
  239. Fixed bias design question
  240. Strange bias circuit. WTF?
  241. 5687 preamp transformer
  242. Anyone know of a dual pentode suitable for a LTP.
  243. Output transformer current and power ratings
  244. Diodes to protect OT's..
  245. Simple SE: ???Dumb Tube Rectifier question???
  246. Speakers for tube amps
  247. Help on power supply
  248. Line output transformer question
  249. Solid vs stranded wire in amplifier circuits
  250. Screen Drive Push Pull ideas

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