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  1. PSUD2 questions
  2. Help lundahl-300bxls problem
  3. Srrp output question
  4. je lab 300b
  5. SET amp using Triode-FET complementary feedback pair ?
  6. Monarch STA-100X Refurb
  7. What causes high THD in tube amps ?
  8. Cons / Pros
  9. Preamp 6v6 grid leak resistor value?
  10. Quick question about preamps
  11. Why are mesh plates supposed to be superior?
  12. 60's and 70's GE tubes
  13. What valves are pin compatible with ECC88 / 6DJ8?
  14. Eico HF-81 OPT specs
  15. Fender Super Twin P Xformer
  16. Audio Research V70 mains transformer rewiring for 220 volts.
  17. looking for fairly simple project for Eico 81 OPT's
  18. looking for fairly simple project for Eico 81 OPT's
  19. New Hybrid Driver/Amplifier
  20. OT: vacuum diode AM detector schematics ?
  21. Sad News about George Wright
  22. Finest Chinese Tube Preamp?
  23. 12B4 Line Stage + Phono Option
  24. Crinkly tube getter – Is this bad?
  25. ??? Output Transformer - Silicon Steel or Amorphous
  26. Is it time for another CCS Group Buy?
  27. Am I Going to Kill This Amp?
  28. My version of the Simple EL84 or rise of the anti-triode.
  29. Intercomponent ground loop hum
  30. Connecting the heater to the cathode in rectifier tube
  31. Dented ASC Caps
  32. EF86 replacement
  33. Super Simple Valve Pre-amp Suggestions?
  34. 6V6 P-P Amp From RCA Manual RC-19
  35. phono stage woes...
  36. stereo SE kt88 build ... abdellah diyaudioprojects design
  37. Mounting filament transformers under chassis?
  38. More impedances for Hammond 125E
  39. Troubleshooting Push-Pull 2A3 (please help)
  40. Lost a channel in my TSE
  41. 6sl7 srpp kt66 se
  42. asking about 6sn7 and 2a3 tubes
  43. help w/ Eico hf-81
  44. Hammond PT power ratings
  45. JVC/Delmonico console info
  46. my TubeLab Amps
  47. Issues with grid choke
  48. Sharp reg. for tubelab se
  49. Calibration of Mercury 1000 tube test set
  50. 6v6 music machine build help!
  51. PCF801 Suggestions
  52. el84 200V Vg2 curves
  53. Prototype fender bassman for trade - echosonic or standel 25l15
  54. What's the advantage of E-linear
  55. Tube microphonics (article)
  56. Another Counterpoint SA-7.1 question
  57. How to test a subminiature tube
  58. C3M linestage
  59. Needinfo: Tamradio SOT-850 specs
  60. Back to Back transformers
  61. UltraLinear Screen Drive
  62. UTC CG-52AX - use as plate chokes?
  63. Chassis material
  64. Fu29 & e813cc
  65. Converting Bogen chb-35a to more guitar friendly amp (newbie inside)
  66. Tube rollers - what tubes for my RH84?
  67. What is meant when tubes are sold as "matched"?
  68. 1:1 transformer replace with line filter
  69. Old valve radios have any use?
  70. Know of any big 7 pin FW rectifier tubes?
  71. Decca Decola PX25 amp schematic
  72. Happy birthday....to me!
  73. Just tested the new E183CC
  74. Chassis mounting tubes off my PCB
  75. Tubelab SE with 2A3 Hum
  76. I need some help with the OPTs on a set of old 6V6GT monoblocks
  77. modified Headwise WCF headpone design
  78. 6em7 ,difference from brand ?
  79. Wavebourn Tower thread
  80. Sealed Lead Acid Batteries
  81. New ebay record!
  82. New ebay record!
  83. NFB, how to implement here?
  84. Recommended Mouser Electronics
  85. Utter novice looking for answers to easy questions:
  86. Hum Troubleshooting on My Tubelab SE with 2A3
  87. Trying to understand Power Supplies - The first Cap in a CRCRC
  88. 5687=e182cc???
  89. Series wire Antek Secondaries
  90. 300bxls vs mosfet :)
  91. 6N4P info
  92. Its alive!!! Aikido 5687
  93. Looking for advice,EL84 based Mono amp conversion/ restoration
  94. Looking for ideas
  95. Looking for curves for obscure tube
  96. tube life, soft start, cathode bias
  97. Triad N-68X Tranny for ^SN7 Aikido?
  98. RH84 with simple 5687 front end?
  99. Rickenbacker old amplifiers (b16 series)
  100. Aikido grounding scheme
  101. measuring voltages and currents simple se
  102. Beginner's luck -- Tubelab Simple SE on first try!
  103. 6CH6 find
  104. Shielded cables - success
  105. Heater-Cathode Voltage
  106. Battery powered tube preamps/effects (guitar)
  107. deliberately unmatching output tubes
  108. triode heater ground question
  109. 6sn7 alternative
  110. A tube amp that will drive 2 ohms or less...
  111. Looking for a simple circuit
  112. Why does my tube amp make a scratchy, popping sound?
  113. Fisher kx-100 Recitfire problem
  114. Potentiometers - USA
  115. Tube SE amplifier with 6P3S (russian tube)
  116. Plate dissipation
  117. Need help with tube models in LTSpice
  118. D3a pentode as driver? History of this tube?
  119. Tubelab SSE inrush current limiters.
  120. looking for some ideas. rebuilding heathkit w-3m amps.
  121. What's wrong with the 12AV7? Try this out!
  122. simple se and edcor gxse output transf question
  123. old tubes
  124. weird ef86 input stage in a Philips amp
  125. table radio w/ tube amp...in the designing process...anyone do this?
  126. Question: grid current related
  127. RH84 based amp
  128. My Aikido!!
  129. Tubelab Simple SE - Transformer Assistance
  130. ST70 clones
  131. Need help selecting a VR tube
  132. Help analysing Hammond organ circuit
  133. Stromberg-Carlson ASR-433
  134. WAHAHA! Our DIY tube amp is done£¡£¡
  135. Pentodes.
  136. making octal adapters
  137. How to cut ceramic
  138. Tubelab web site down for a day
  139. Trans wires in parallel or series?
  140. Tube socket for ECC88, drawing
  141. Richardson 5ar4
  142. Percy Audio / Still open? / Can't seem to get any response from them
  143. Resistor types in an amplifier
  144. simple se inrush limiter placement
  145. CRC Filter ?
  146. EICO 666 tube tester - What settings do you use?
  147. PCB edge connectors... what will they do to my sound?
  148. Tranny question
  149. Anyone here in contact with Pieter from Tribute?
  150. Fisher 500C with JJ 7591S - Optimum Bias Current?
  151. Power supply resistors power ratings
  152. Anyone tried this SE trafos?
  153. Adjustable B+ and Cathode Current linestage
  154. Possibility of Tube substitution trough MOSFETs
  155. G2 overvoltage ??
  156. Toroid transformer cover?
  157. Help me to think of name for a tube amplifier
  158. All DHT Phono Stage
  159. How Set up Aria Mini 6P14?
  160. new build - abdellah SE KT88
  161. Sources for enclosures, parts, standoffs, tubing, etc?
  162. Duncan PSUII question
  163. Bench Phono Pre Layout
  164. Imd
  165. Line Level tube
  166. Wanting to start a DIY tube amp
  167. ARC VT100 driver adjustment
  168. Valve Amplifier
  169. SE OPT's in India
  170. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  171. What is a "gridless control" tube ?
  172. simple se ground to speaker wire?
  173. Polytone Mini-brute II
  174. New 6N6P linestage
  175. Split supply, arrangement of gain and phase splitter tubes
  176. New Hybrid Amp with multiple inputs: Little Singer H-30A
  177. Help with my Transformer - vibrating
  178. Ultralinear fender?
  179. Quick transformer question
  180. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  181. Oddwatt / Oddblock Builder's Thread
  182. Tube output stage for Buffalo Saber 32-bit DAC?
  183. Silvertone Multiplex Stereo Model No. 4092 Questions
  184. 6SJ7(6J8) + 6v6 (6P6S) SE
  185. Wavebourn Tower-III High-end hybrid amp
  186. Question - Closest Russian Analog of 12BH7A
  187. Help understanding the PowerDrive circuit anaylsis
  188. Aikido pre
  189. Fixed bias: Pots near supply or tubes?
  190. Oh, those 12AU7s again...
  191. Plitron LOW Power OPT...
  192. Has anyone used The Guiguang 300B?
  193. anyone have any el86 circuits laying around?
  194. ok, power supply question, 230v - 117v conversion
  195. Big lot of tubes purchased this morning
  196. Tamura HM-1
  197. Tube Amp Design Question...
  198. Cathode Bias questions
  199. Tube Hybrid Shunt Regulator ... will this even work?
  200. Forgive me TubeLab ... I have sinned
  201. Broskie regulator oscillates
  202. Yushang-Audio Classic 16.6
  203. Tube PreAmplifier Kit suggestions..
  204. Sourcing Chassis Access Panels
  205. Running 4 ohm speakers with my Simple SE
  206. Cavalli OCL Buffer
  207. wooohooo! Three Rowe AMI amps for $200NZD!
  208. Quick Volume pot question
  209. Basic choke quality/sonic benefit questions
  210. Tubelab SE buzzing noise from the speaker
  211. lighspeed attenuator w/Simple SE AMP
  212. Tube rectifiers for Dummies
  213. help on a SE 4 channel tube amp for auto?
  214. Audio Output Transformers
  215. K-502 Help
  216. High gain guitar preamp kits!
  217. First post, first project RH84
  218. Source for tube cages?
  219. Simple SE optimum layout for hum
  220. Audio Transformers - Help
  221. Gran Tenor
  222. Toroidal Output Tranformers
  223. Cathode Follower confusion
  224. Tube newbie problem
  225. Replacement of KT88's. No mods' necessary?
  226. Phase splitter types
  227. Yaqin VK-2100 mods
  228. Heptode oscillators
  229. tube amp repair in DFW area
  230. A novice scope user - measuring noise?
  231. Hickok 600A & KT88
  232. Multifilar winding
  233. Measuring Hi-Fi Amplifiers
  234. Help with 30A5 tube amp schematic
  235. simple se troubleshooting
  236. 6SN7 operating points input gain stage and concertina
  237. looking for pentodes for scope deflection
  238. Cary 845 schematics
  239. newbie simple SE issue
  240. Power Transformer 110/230V Windings Question
  241. OPT Voltage spike protection with zeners
  242. IRIS OTL info
  243. Precise 111 tube tester - missing tubes
  244. ping yves
  245. Filters
  246. 2X2 as amplifier rectifier
  247. SPMSU for heater supplies
  248. Shipping Tube Gear
  249. Amplifier squeel at zero volume
  250. mercury rectifier for electrostatic bias

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