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  1. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  2. Simple 6V6 Push Pull Schematic
  3. remote help for RCA RK-290 console
  4. Suggestion for a 2x15 or 2x20 amp?
  5. Spud, Schade, PP, Anti-triode ECL86
  6. Posted new P-P power amp design
  7. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  8. Vintage RCA amps
  9. 6.3V/5A DC Fillament Schematic
  10. Can I use this output transformers with a 5965?
  11. Measuring Tube Gm
  12. Can I use this output transformers with a 5695?
  13. How to design a direct coupled SE amplifier?
  14. Ordered TechTube Valves today
  15. Should I buy and part out an old Hammond tube organ?
  16. 6N6P Unbalanced Sound?
  17. DC filaments for 6550s
  18. Obliterate, delete Vibrato or Reverb circuit in blackface-like amps
  19. My Copland CTA401 hums , help needed please
  20. Triode connected Pentodes in a cathode bias?
  21. Transformer as a voltage gain element
  22. Russian 6p31s tubes
  23. Ixcp 10m45s
  24. rectifier limiting resistors capacitor input
  25. arc V70 blue flash in KT90 tubes
  26. Choke?
  27. EL34 PP motorboating questions
  28. GU29 damaged
  29. PSUD2 questions
  30. Help lundahl-300bxls problem
  31. Srrp output question
  32. je lab 300b
  33. SET amp using Triode-FET complementary feedback pair ?
  34. Monarch STA-100X Refurb
  35. What causes high THD in tube amps ?
  36. Cons / Pros
  37. Preamp 6v6 grid leak resistor value?
  38. Quick question about preamps
  39. Why are mesh plates supposed to be superior?
  40. 60's and 70's GE tubes
  41. What valves are pin compatible with ECC88 / 6DJ8?
  42. Eico HF-81 OPT specs
  43. Fender Super Twin P Xformer
  44. Audio Research V70 mains transformer rewiring for 220 volts.
  45. looking for fairly simple project for Eico 81 OPT's
  46. looking for fairly simple project for Eico 81 OPT's
  47. New Hybrid Driver/Amplifier
  48. OT: vacuum diode AM detector schematics ?
  49. Sad News about George Wright
  50. Finest Chinese Tube Preamp?
  51. 12B4 Line Stage + Phono Option
  52. Crinkly tube getter – Is this bad?
  53. ??? Output Transformer - Silicon Steel or Amorphous
  54. Is it time for another CCS Group Buy?
  55. Am I Going to Kill This Amp?
  56. My version of the Simple EL84 or rise of the anti-triode.
  57. Intercomponent ground loop hum
  58. Connecting the heater to the cathode in rectifier tube
  59. Dented ASC Caps
  60. EF86 replacement
  61. Super Simple Valve Pre-amp Suggestions?
  62. 6V6 P-P Amp From RCA Manual RC-19
  63. phono stage woes...
  64. stereo SE kt88 build ... abdellah diyaudioprojects design
  65. Mounting filament transformers under chassis?
  66. More impedances for Hammond 125E
  67. Troubleshooting Push-Pull 2A3 (please help)
  68. Lost a channel in my TSE
  69. 6sl7 srpp kt66 se
  70. asking about 6sn7 and 2a3 tubes
  71. help w/ Eico hf-81
  72. Hammond PT power ratings
  73. JVC/Delmonico console info
  74. my TubeLab Amps
  75. Issues with grid choke
  76. Sharp reg. for tubelab se
  77. Calibration of Mercury 1000 tube test set
  78. 6v6 music machine build help!
  79. PCF801 Suggestions
  80. el84 200V Vg2 curves
  81. Prototype fender bassman for trade - echosonic or standel 25l15
  82. What's the advantage of E-linear
  83. Tube microphonics (article)
  84. Another Counterpoint SA-7.1 question
  85. How to test a subminiature tube
  86. C3M linestage
  87. Needinfo: Tamradio SOT-850 specs
  88. Back to Back transformers
  89. UltraLinear Screen Drive
  90. UTC CG-52AX - use as plate chokes?
  91. Chassis material
  92. Fu29 & e813cc
  93. Converting Bogen chb-35a to more guitar friendly amp (newbie inside)
  94. Tube rollers - what tubes for my RH84?
  95. What is meant when tubes are sold as "matched"?
  96. 1:1 transformer replace with line filter
  97. Old valve radios have any use?
  98. Know of any big 7 pin FW rectifier tubes?
  99. Decca Decola PX25 amp schematic
  100. Happy birthday....to me!
  101. Just tested the new E183CC
  102. Chassis mounting tubes off my PCB
  103. Tubelab SE with 2A3 Hum
  104. I need some help with the OPTs on a set of old 6V6GT monoblocks
  105. modified Headwise WCF headpone design
  106. 6em7 ,difference from brand ?
  107. Wavebourn Tower thread
  108. Sealed Lead Acid Batteries
  109. New ebay record!
  110. New ebay record!
  111. NFB, how to implement here?
  112. Recommended Mouser Electronics
  113. Utter novice looking for answers to easy questions:
  114. Hum Troubleshooting on My Tubelab SE with 2A3
  115. Trying to understand Power Supplies - The first Cap in a CRCRC
  116. 5687=e182cc???
  117. Series wire Antek Secondaries
  118. 300bxls vs mosfet :)
  119. 6N4P info
  120. Its alive!!! Aikido 5687
  121. Looking for advice,EL84 based Mono amp conversion/ restoration
  122. Looking for ideas
  123. Looking for curves for obscure tube
  124. tube life, soft start, cathode bias
  125. Triad N-68X Tranny for ^SN7 Aikido?
  126. RH84 with simple 5687 front end?
  127. Rickenbacker old amplifiers (b16 series)
  128. Aikido grounding scheme
  129. measuring voltages and currents simple se
  130. Beginner's luck -- Tubelab Simple SE on first try!
  131. 6CH6 find
  132. Shielded cables - success
  133. Heater-Cathode Voltage
  134. Battery powered tube preamps/effects (guitar)
  135. deliberately unmatching output tubes
  136. triode heater ground question
  137. 6sn7 alternative
  138. A tube amp that will drive 2 ohms or less...
  139. Looking for a simple circuit
  140. Why does my tube amp make a scratchy, popping sound?
  141. Fisher kx-100 Recitfire problem
  142. Potentiometers - USA
  143. Tube SE amplifier with 6P3S (russian tube)
  144. Plate dissipation
  145. Need help with tube models in LTSpice
  146. D3a pentode as driver? History of this tube?
  147. Tubelab SSE inrush current limiters.
  148. looking for some ideas. rebuilding heathkit w-3m amps.
  149. What's wrong with the 12AV7? Try this out!
  150. simple se and edcor gxse output transf question
  151. old tubes
  152. weird ef86 input stage in a Philips amp
  153. table radio w/ tube amp...in the designing process...anyone do this?
  154. Question: grid current related
  155. RH84 based amp
  156. My Aikido!!
  157. Tubelab Simple SE - Transformer Assistance
  158. ST70 clones
  159. Need help selecting a VR tube
  160. Help analysing Hammond organ circuit
  161. Stromberg-Carlson ASR-433
  162. WAHAHA! Our DIY tube amp is done£¡£¡
  163. Pentodes.
  164. making octal adapters
  165. How to cut ceramic
  166. Tubelab web site down for a day
  167. Trans wires in parallel or series?
  168. Tube socket for ECC88, drawing
  169. Richardson 5ar4
  170. Percy Audio / Still open? / Can't seem to get any response from them
  171. Resistor types in an amplifier
  172. simple se inrush limiter placement
  173. CRC Filter ?
  174. EICO 666 tube tester - What settings do you use?
  175. PCB edge connectors... what will they do to my sound?
  176. Tranny question
  177. Anyone here in contact with Pieter from Tribute?
  178. Fisher 500C with JJ 7591S - Optimum Bias Current?
  179. Power supply resistors power ratings
  180. Anyone tried this SE trafos?
  181. Adjustable B+ and Cathode Current linestage
  182. Possibility of Tube substitution trough MOSFETs
  183. G2 overvoltage ??
  184. Toroid transformer cover?
  185. Help me to think of name for a tube amplifier
  186. All DHT Phono Stage
  187. How Set up Aria Mini 6P14?
  188. new build - abdellah SE KT88
  189. Sources for enclosures, parts, standoffs, tubing, etc?
  190. Duncan PSUII question
  191. Bench Phono Pre Layout
  192. Imd
  193. Line Level tube
  194. Wanting to start a DIY tube amp
  195. ARC VT100 driver adjustment
  196. Valve Amplifier
  197. SE OPT's in India
  198. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  199. What is a "gridless control" tube ?
  200. simple se ground to speaker wire?
  201. Polytone Mini-brute II
  202. New 6N6P linestage
  203. Split supply, arrangement of gain and phase splitter tubes
  204. New Hybrid Amp with multiple inputs: Little Singer H-30A
  205. Help with my Transformer - vibrating
  206. Ultralinear fender?
  207. Quick transformer question
  208. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  209. Oddwatt / Oddblock Builder's Thread
  210. Tube output stage for Buffalo Saber 32-bit DAC?
  211. Silvertone Multiplex Stereo Model No. 4092 Questions
  212. 6SJ7(6J8) + 6v6 (6P6S) SE
  213. Wavebourn Tower-III High-end hybrid amp
  214. Question - Closest Russian Analog of 12BH7A
  215. Help understanding the PowerDrive circuit anaylsis
  216. Aikido pre
  217. Fixed bias: Pots near supply or tubes?
  218. Oh, those 12AU7s again...
  219. Plitron LOW Power OPT...
  220. Has anyone used The Guiguang 300B?
  221. anyone have any el86 circuits laying around?
  222. ok, power supply question, 230v - 117v conversion
  223. Big lot of tubes purchased this morning
  224. Tamura HM-1
  225. Tube Amp Design Question...
  226. Cathode Bias questions
  227. Tube Hybrid Shunt Regulator ... will this even work?
  228. Forgive me TubeLab ... I have sinned
  229. Broskie regulator oscillates
  230. Yushang-Audio Classic 16.6
  231. Tube PreAmplifier Kit suggestions..
  232. Sourcing Chassis Access Panels
  233. Running 4 ohm speakers with my Simple SE
  234. Cavalli OCL Buffer
  235. wooohooo! Three Rowe AMI amps for $200NZD!
  236. Quick Volume pot question
  237. Basic choke quality/sonic benefit questions
  238. Tubelab SE buzzing noise from the speaker
  239. lighspeed attenuator w/Simple SE AMP
  240. Tube rectifiers for Dummies
  241. help on a SE 4 channel tube amp for auto?
  242. Audio Output Transformers
  243. K-502 Help
  244. High gain guitar preamp kits!
  245. First post, first project RH84
  246. Source for tube cages?
  247. Simple SE optimum layout for hum
  248. Audio Transformers - Help
  249. Gran Tenor
  250. Toroidal Output Tranformers

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