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  1. Sad News about George Wright
  2. Finest Chinese Tube Preamp?
  3. 12B4 Line Stage + Phono Option
  4. Crinkly tube getter – Is this bad?
  5. ??? Output Transformer - Silicon Steel or Amorphous
  6. Is it time for another CCS Group Buy?
  7. Am I Going to Kill This Amp?
  8. My version of the Simple EL84 or rise of the anti-triode.
  9. Intercomponent ground loop hum
  10. Connecting the heater to the cathode in rectifier tube
  11. EF86 replacement
  12. Super Simple Valve Pre-amp Suggestions?
  13. 6V6 P-P Amp From RCA Manual RC-19
  14. phono stage woes...
  15. stereo SE kt88 build ... abdellah diyaudioprojects design
  16. Mounting filament transformers under chassis?
  17. More impedances for Hammond 125E
  18. Troubleshooting Push-Pull 2A3 (please help)
  19. 6sl7 srpp kt66 se
  20. asking about 6sn7 and 2a3 tubes
  21. help w/ Eico hf-81
  22. Hammond PT power ratings
  23. JVC/Delmonico console info
  24. Issues with grid choke
  25. Calibration of Mercury 1000 tube test set
  26. 6v6 music machine build help!
  27. PCF801 Suggestions
  28. el84 200V Vg2 curves
  29. What's the advantage of E-linear
  30. Tube microphonics (article)
  31. Another Counterpoint SA-7.1 question
  32. How to test a subminiature tube
  33. C3M linestage
  34. Needinfo: Tamradio SOT-850 specs
  35. Back to Back transformers
  36. UltraLinear Screen Drive
  37. UTC CG-52AX - use as plate chokes?
  38. Chassis material
  39. Fu29 & e813cc
  40. Tube rollers - what tubes for my RH84?
  41. What is meant when tubes are sold as "matched"?
  42. 1:1 transformer replace with line filter
  43. Old valve radios have any use?
  44. Know of any big 7 pin FW rectifier tubes?
  45. Decca Decola PX25 amp schematic
  46. Happy birthday....to me!
  47. Just tested the new E183CC
  48. Chassis mounting tubes off my PCB
  49. I need some help with the OPTs on a set of old 6V6GT monoblocks
  50. modified Headwise WCF headpone design
  51. 6em7 ,difference from brand ?
  52. Wavebourn Tower thread
  53. Sealed Lead Acid Batteries
  54. New ebay record!
  55. New ebay record!
  56. NFB, how to implement here?
  57. Recommended Mouser Electronics
  58. Utter novice looking for answers to easy questions:
  59. Trying to understand Power Supplies - The first Cap in a CRCRC
  60. 5687=e182cc???
  61. Series wire Antek Secondaries
  62. 300bxls vs mosfet :)
  63. 6N4P info
  64. Its alive!!! Aikido 5687
  65. Looking for advice,EL84 based Mono amp conversion/ restoration
  66. Looking for ideas
  67. Looking for curves for obscure tube
  68. tube life, soft start, cathode bias
  69. Triad N-68X Tranny for ^SN7 Aikido?
  70. RH84 with simple 5687 front end?
  71. Aikido grounding scheme
  72. 6CH6 find
  73. Shielded cables - success
  74. Heater-Cathode Voltage
  75. deliberately unmatching output tubes
  76. triode heater ground question
  77. 6sn7 alternative
  78. A tube amp that will drive 2 ohms or less...
  79. Looking for a simple circuit
  80. Why does my tube amp make a scratchy, popping sound?
  81. Fisher kx-100 Recitfire problem
  82. Potentiometers - USA
  83. Tube SE amplifier with 6P3S (russian tube)
  84. Plate dissipation
  85. Need help with tube models in LTSpice
  86. D3a pentode as driver? History of this tube?
  87. looking for some ideas. rebuilding heathkit w-3m amps.
  88. What's wrong with the 12AV7? Try this out!
  89. old tubes
  90. weird ef86 input stage in a Philips amp
  91. table radio w/ tube amp...in the designing process...anyone do this?
  92. Question: grid current related
  93. RH84 based amp
  94. My Aikido!!
  95. ST70 clones
  96. Need help selecting a VR tube
  97. Help analysing Hammond organ circuit
  98. Stromberg-Carlson ASR-433
  99. WAHAHA! Our DIY tube amp is done£¡£¡
  100. Pentodes.
  101. making octal adapters
  102. How to cut ceramic
  103. Trans wires in parallel or series?
  104. Tube socket for ECC88, drawing
  105. Richardson 5ar4
  106. Percy Audio / Still open? / Can't seem to get any response from them
  107. CRC Filter ?
  108. PCB edge connectors... what will they do to my sound?
  109. Tranny question
  110. Anyone here in contact with Pieter from Tribute?
  111. Fisher 500C with JJ 7591S - Optimum Bias Current?
  112. Power supply resistors power ratings
  113. Anyone tried this SE trafos?
  114. Adjustable B+ and Cathode Current linestage
  115. Possibility of Tube substitution trough MOSFETs
  116. G2 overvoltage ??
  117. Toroid transformer cover?
  118. Help me to think of name for a tube amplifier
  119. All DHT Phono Stage
  120. How Set up Aria Mini 6P14?
  121. new build - abdellah SE KT88
  122. Sources for enclosures, parts, standoffs, tubing, etc?
  123. Duncan PSUII question
  124. Bench Phono Pre Layout
  125. Imd
  126. Line Level tube
  127. Wanting to start a DIY tube amp
  128. ARC VT100 driver adjustment
  129. Valve Amplifier
  130. SE OPT's in India
  131. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  132. What is a "gridless control" tube ?
  133. Polytone Mini-brute II
  134. New 6N6P linestage
  135. Split supply, arrangement of gain and phase splitter tubes
  136. New Hybrid Amp with multiple inputs: Little Singer H-30A
  137. Help with my Transformer - vibrating
  138. Quick transformer question
  139. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  140. Oddwatt / Oddblock Builder's Thread
  141. Tube output stage for Buffalo Saber 32-bit DAC?
  142. Silvertone Multiplex Stereo Model No. 4092 Questions
  143. 6SJ7(6J8) + 6v6 (6P6S) SE
  144. Wavebourn Tower-III High-end hybrid amp
  145. Question - Closest Russian Analog of 12BH7A
  146. Help understanding the PowerDrive circuit anaylsis
  147. Aikido pre
  148. Fixed bias: Pots near supply or tubes?
  149. Oh, those 12AU7s again...
  150. Plitron LOW Power OPT...
  151. Has anyone used The Guiguang 300B?
  152. anyone have any el86 circuits laying around?
  153. ok, power supply question, 230v - 117v conversion
  154. Big lot of tubes purchased this morning
  155. Tamura HM-1
  156. Tube Amp Design Question...
  157. Cathode Bias questions
  158. Tube Hybrid Shunt Regulator ... will this even work?
  159. Broskie regulator oscillates
  160. Yushang-Audio Classic 16.6
  161. Tube PreAmplifier Kit suggestions..
  162. Sourcing Chassis Access Panels
  163. Cavalli OCL Buffer
  164. wooohooo! Three Rowe AMI amps for $200NZD!
  165. Quick Volume pot question
  166. Basic choke quality/sonic benefit questions
  167. Tube rectifiers for Dummies
  168. help on a SE 4 channel tube amp for auto?
  169. Audio Output Transformers
  170. K-502 Help
  171. First post, first project RH84
  172. Source for tube cages?
  173. Audio Transformers - Help
  174. Gran Tenor
  175. Toroidal Output Tranformers
  176. Cathode Follower confusion
  177. Tube newbie problem
  178. Replacement of KT88's. No mods' necessary?
  179. Phase splitter types
  180. Yaqin VK-2100 mods
  181. Heptode oscillators
  182. tube amp repair in DFW area
  183. A novice scope user - measuring noise?
  184. Multifilar winding
  185. Measuring Hi-Fi Amplifiers
  186. Help with 30A5 tube amp schematic
  187. 6SN7 operating points input gain stage and concertina
  188. looking for pentodes for scope deflection
  189. Cary 845 schematics
  190. Power Transformer 110/230V Windings Question
  191. OPT Voltage spike protection with zeners
  192. IRIS OTL info
  193. ping yves
  194. Filters
  195. 2X2 as amplifier rectifier
  196. SPMSU for heater supplies
  197. Shipping Tube Gear
  198. Amplifier squeel at zero volume
  199. mercury rectifier for electrostatic bias
  200. My little coupling-cap-test in a UL-70W-Amp
  201. Electra-Print 300BDRD
  202. K-502... upgrading the OPT's with Hammonds
  203. Tube eq or tone control - how to design it?
  204. Help, strange glowing in KT88
  205. Need opinions about this tube circuit
  206. Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....
  207. Max current for Edcore GXSE10-8-2.5K
  208. And for the man who has everything....
  209. 1J6G recommended operating point?
  210. DHT bias and filament supply in one?
  211. 3d amp modelling (for solidworks)
  212. RSC Stereo Ten.
  213. Help - noisy phono stage
  214. 2A3 Max Grid Current Rating?
  215. Futterman style 6AS7 OTL with other tubes
  216. Low/Mid-Watt Amps
  217. Calling all builders of the Swenson/Pimm HV Reg
  218. AZ1 problem: broken metal part
  219. More Grunt from Aikido Needed to drive PL509's
  220. Correct OPT and other adjustments on old Bogen amp
  221. Ebl 21 Se Amplifier
  222. OT primary impedance calculation
  223. Akai M5?
  224. Identify the DHT
  225. Fountek Altitude 3500, any opinions?
  226. 31 tube in output
  227. dynaco system- volume remains
  228. Left channel BAD in stereo! HELP please! It's my first tube set
  229. OPT with power transfrormer core
  230. 300b dpa
  231. IV single stage inverting Feedback Amp
  232. TechTubes - The return of Blackburn
  233. Tradeoffs in analog circuit design, and so on...
  234. Has anyone Received The new Techtubes yet?
  235. 6P3S-E in place of 6V6
  236. EL34, KT88, High Voltage?, VTL..
  237. 100W 6L6 amp sounds harsh at high Volume
  238. Need help: amp blowing fuses
  239. Best voltage reference device for a cascode BJT CCS?
  240. Tube power amp noise problem
  241. tube oscillator help.
  242. Finally have some big chokes, how would you use them?
  243. Tube amplifier
  244. 12AX7 heater filament resistance
  245. Choke input LC chain questions..Q?, minload?
  246. LED bias for 12ax7 oscillator
  247. Yaqin VK-2100 hybrid running 4 ohm speakers
  248. VR shunt regulator or RC filter
  249. Screen Mode Mesh Plate?
  250. EL34 simple push pull class B : why 100W ?

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