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  1. looking for fairly simple project for Eico 81 OPT's
  2. New Hybrid Driver/Amplifier
  3. OT: vacuum diode AM detector schematics ?
  4. Sad News about George Wright
  5. Finest Chinese Tube Preamp?
  6. 12B4 Line Stage + Phono Option
  7. Crinkly tube getter – Is this bad?
  8. ??? Output Transformer - Silicon Steel or Amorphous
  9. Is it time for another CCS Group Buy?
  10. Am I Going to Kill This Amp?
  11. My version of the Simple EL84 or rise of the anti-triode.
  12. Intercomponent ground loop hum
  13. Connecting the heater to the cathode in rectifier tube
  14. Dented ASC Caps
  15. EF86 replacement
  16. Super Simple Valve Pre-amp Suggestions?
  17. 6V6 P-P Amp From RCA Manual RC-19
  18. phono stage woes...
  19. stereo SE kt88 build ... abdellah diyaudioprojects design
  20. Mounting filament transformers under chassis?
  21. More impedances for Hammond 125E
  22. Troubleshooting Push-Pull 2A3 (please help)
  23. Lost a channel in my TSE
  24. 6sl7 srpp kt66 se
  25. asking about 6sn7 and 2a3 tubes
  26. help w/ Eico hf-81
  27. Hammond PT power ratings
  28. JVC/Delmonico console info
  29. my TubeLab Amps
  30. Issues with grid choke
  31. Sharp reg. for tubelab se
  32. Calibration of Mercury 1000 tube test set
  33. 6v6 music machine build help!
  34. PCF801 Suggestions
  35. el84 200V Vg2 curves
  36. Prototype fender bassman for trade - echosonic or standel 25l15
  37. What's the advantage of E-linear
  38. Tube microphonics (article)
  39. Another Counterpoint SA-7.1 question
  40. How to test a subminiature tube
  41. C3M linestage
  42. Needinfo: Tamradio SOT-850 specs
  43. Back to Back transformers
  44. UltraLinear Screen Drive
  45. UTC CG-52AX - use as plate chokes?
  46. Chassis material
  47. Fu29 & e813cc
  48. Converting Bogen chb-35a to more guitar friendly amp (newbie inside)
  49. Tube rollers - what tubes for my RH84?
  50. What is meant when tubes are sold as "matched"?
  51. 1:1 transformer replace with line filter
  52. Old valve radios have any use?
  53. Know of any big 7 pin FW rectifier tubes?
  54. Decca Decola PX25 amp schematic
  55. Happy birthday....to me!
  56. Just tested the new E183CC
  57. Chassis mounting tubes off my PCB
  58. Tubelab SE with 2A3 Hum
  59. I need some help with the OPTs on a set of old 6V6GT monoblocks
  60. modified Headwise WCF headpone design
  61. 6em7 ,difference from brand ?
  62. Wavebourn Tower thread
  63. Sealed Lead Acid Batteries
  64. New ebay record!
  65. New ebay record!
  66. NFB, how to implement here?
  67. Recommended Mouser Electronics
  68. Utter novice looking for answers to easy questions:
  69. Hum Troubleshooting on My Tubelab SE with 2A3
  70. Trying to understand Power Supplies - The first Cap in a CRCRC
  71. 5687=e182cc???
  72. Series wire Antek Secondaries
  73. 300bxls vs mosfet :)
  74. 6N4P info
  75. Its alive!!! Aikido 5687
  76. Looking for advice,EL84 based Mono amp conversion/ restoration
  77. Looking for ideas
  78. Looking for curves for obscure tube
  79. tube life, soft start, cathode bias
  80. Triad N-68X Tranny for ^SN7 Aikido?
  81. RH84 with simple 5687 front end?
  82. Rickenbacker old amplifiers (b16 series)
  83. Aikido grounding scheme
  84. measuring voltages and currents simple se
  85. Beginner's luck -- Tubelab Simple SE on first try!
  86. 6CH6 find
  87. Shielded cables - success
  88. Heater-Cathode Voltage
  89. Battery powered tube preamps/effects (guitar)
  90. deliberately unmatching output tubes
  91. triode heater ground question
  92. 6sn7 alternative
  93. A tube amp that will drive 2 ohms or less...
  94. Looking for a simple circuit
  95. Why does my tube amp make a scratchy, popping sound?
  96. Fisher kx-100 Recitfire problem
  97. Potentiometers - USA
  98. Tube SE amplifier with 6P3S (russian tube)
  99. Plate dissipation
  100. Need help with tube models in LTSpice
  101. D3a pentode as driver? History of this tube?
  102. Tubelab SSE inrush current limiters.
  103. looking for some ideas. rebuilding heathkit w-3m amps.
  104. What's wrong with the 12AV7? Try this out!
  105. simple se and edcor gxse output transf question
  106. old tubes
  107. weird ef86 input stage in a Philips amp
  108. table radio w/ tube amp...in the designing process...anyone do this?
  109. Question: grid current related
  110. RH84 based amp
  111. My Aikido!!
  112. Tubelab Simple SE - Transformer Assistance
  113. ST70 clones
  114. Need help selecting a VR tube
  115. Help analysing Hammond organ circuit
  116. Stromberg-Carlson ASR-433
  117. WAHAHA! Our DIY tube amp is done£¡£¡
  118. Pentodes.
  119. making octal adapters
  120. How to cut ceramic
  121. Tubelab web site down for a day
  122. Trans wires in parallel or series?
  123. Tube socket for ECC88, drawing
  124. Richardson 5ar4
  125. Percy Audio / Still open? / Can't seem to get any response from them
  126. Resistor types in an amplifier
  127. simple se inrush limiter placement
  128. CRC Filter ?
  129. EICO 666 tube tester - What settings do you use?
  130. PCB edge connectors... what will they do to my sound?
  131. Tranny question
  132. Anyone here in contact with Pieter from Tribute?
  133. Fisher 500C with JJ 7591S - Optimum Bias Current?
  134. Power supply resistors power ratings
  135. Anyone tried this SE trafos?
  136. Adjustable B+ and Cathode Current linestage
  137. Possibility of Tube substitution trough MOSFETs
  138. G2 overvoltage ??
  139. Toroid transformer cover?
  140. Help me to think of name for a tube amplifier
  141. All DHT Phono Stage
  142. How Set up Aria Mini 6P14?
  143. new build - abdellah SE KT88
  144. Sources for enclosures, parts, standoffs, tubing, etc?
  145. Duncan PSUII question
  146. Bench Phono Pre Layout
  147. Imd
  148. Line Level tube
  149. Wanting to start a DIY tube amp
  150. ARC VT100 driver adjustment
  151. Valve Amplifier
  152. SE OPT's in India
  153. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  154. What is a "gridless control" tube ?
  155. simple se ground to speaker wire?
  156. Polytone Mini-brute II
  157. New 6N6P linestage
  158. Split supply, arrangement of gain and phase splitter tubes
  159. New Hybrid Amp with multiple inputs: Little Singer H-30A
  160. Help with my Transformer - vibrating
  161. Ultralinear fender?
  162. Quick transformer question
  163. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  164. Oddwatt / Oddblock Builder's Thread
  165. Tube output stage for Buffalo Saber 32-bit DAC?
  166. Silvertone Multiplex Stereo Model No. 4092 Questions
  167. 6SJ7(6J8) + 6v6 (6P6S) SE
  168. Wavebourn Tower-III High-end hybrid amp
  169. Question - Closest Russian Analog of 12BH7A
  170. Help understanding the PowerDrive circuit anaylsis
  171. Aikido pre
  172. Fixed bias: Pots near supply or tubes?
  173. Oh, those 12AU7s again...
  174. Plitron LOW Power OPT...
  175. Has anyone used The Guiguang 300B?
  176. anyone have any el86 circuits laying around?
  177. ok, power supply question, 230v - 117v conversion
  178. Big lot of tubes purchased this morning
  179. Tamura HM-1
  180. Tube Amp Design Question...
  181. Cathode Bias questions
  182. Tube Hybrid Shunt Regulator ... will this even work?
  183. Forgive me TubeLab ... I have sinned
  184. Broskie regulator oscillates
  185. Yushang-Audio Classic 16.6
  186. Tube PreAmplifier Kit suggestions..
  187. Sourcing Chassis Access Panels
  188. Running 4 ohm speakers with my Simple SE
  189. YAQIN SD-32A Tube CD/HDCD Player
  190. Cavalli OCL Buffer
  191. wooohooo! Three Rowe AMI amps for $200NZD!
  192. Quick Volume pot question
  193. Basic choke quality/sonic benefit questions
  194. Tubelab SE buzzing noise from the speaker
  195. lighspeed attenuator w/Simple SE AMP
  196. Tube rectifiers for Dummies
  197. help on a SE 4 channel tube amp for auto?
  198. Audio Output Transformers
  199. K-502 Help
  200. High gain guitar preamp kits!
  201. First post, first project RH84
  202. Source for tube cages?
  203. Simple SE optimum layout for hum
  204. Audio Transformers - Help
  205. Gran Tenor
  206. Toroidal Output Tranformers
  207. Cathode Follower confusion
  208. Tube newbie problem
  209. Replacement of KT88's. No mods' necessary?
  210. Phase splitter types
  211. Yaqin VK-2100 mods
  212. Heptode oscillators
  213. tube amp repair in DFW area
  214. A novice scope user - measuring noise?
  215. Hickok 600A & KT88
  216. Multifilar winding
  217. Measuring Hi-Fi Amplifiers
  218. Help with 30A5 tube amp schematic
  219. simple se troubleshooting
  220. 6SN7 operating points input gain stage and concertina
  221. looking for pentodes for scope deflection
  222. Cary 845 schematics
  223. newbie simple SE issue
  224. Power Transformer 110/230V Windings Question
  225. OPT Voltage spike protection with zeners
  226. IRIS OTL info
  227. Precise 111 tube tester - missing tubes
  228. ping yves
  229. Filters
  230. 2X2 as amplifier rectifier
  231. SPMSU for heater supplies
  232. Shipping Tube Gear
  233. Amplifier squeel at zero volume
  234. mercury rectifier for electrostatic bias
  235. My little coupling-cap-test in a UL-70W-Amp
  236. Electra-Print 300BDRD
  237. K-502... upgrading the OPT's with Hammonds
  238. Tube eq or tone control - how to design it?
  239. Help, strange glowing in KT88
  240. Need opinions about this tube circuit
  241. Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....
  242. Max current for Edcore GXSE10-8-2.5K
  243. And for the man who has everything....
  244. 1J6G recommended operating point?
  245. DHT bias and filament supply in one?
  246. Tubelab Simple SE Sound Quality
  247. 3d amp modelling (for solidworks)
  248. RSC Stereo Ten.
  249. Weird Bias on Simple SE
  250. Help - noisy phono stage

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