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  1. All quiet on the SN front - about darned time!
  2. Estimating power output
  3. Looking for KT88 Amplifier Schematic by Mikael Abdellah
  4. Comments on passive pre and cables
  5. curvecaptor
  6. 6b4g pushpull build!newbie
  7. Need help; I have "dog leg" shaped waveform on my amp
  8. Output Transformer Question?
  9. Urgent OT HELP needed ASAP please
  10. Questions on Triode Strapping
  11. Morgan Jones BALANCED?
  12. What are your RFI precautions?
  13. Pentodes without cathodes?
  14. help me
  15. Good quality 6600 CT OT
  16. Local Hamfest score!!!
  17. Unknown Transformer
  18. S5 11g help
  19. 6SN7 pre-amp
  20. These tube can be use for amplifier
  21. Any pitfalls to choke derived CT?
  22. Audio Research D76A bias adjustment
  23. I meet Mr. Morgan Jones
  24. st70 electrolytic caps
  25. Thank you SY
  26. el84 1 channel stopped working help
  27. Help! Weak Bass!
  28. never say never - 300B amps...
  29. 6aq5 Screen resistor?
  30. L. Tatro farm radios from 1930's.
  31. Published/DIY ultra-low THD designs?
  32. EL84 SE auto bias
  33. Kofi Annan in: "Oscillatin' in the Bevois Valley'"
  34. Subwoofer connections
  35. 6/30L2 - What to do with them ?
  36. PIONEER SA-810 Tube Amp Schematics
  37. EF86 Gm
  38. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  39. Aria 6P14 makeover.
  40. switch for paralelled tube
  41. Curvecaptor with pentodes??
  42. Ground point for HF decoupling cap?
  43. Cancelling Harmonics
  44. Quiet Tube
  45. LM385 Adjustable voltage ref. diode as LED bias?
  46. Tubed Expression Pedal
  47. Any spice models around for AA5-esque battery tubes?
  48. Where to connect shielding
  49. Bogen K15 convert to guitar amp
  50. Help 805 As that the friend makes to straighten even gallbladder machine
  51. studiogear of the beatles
  52. 6AK5 Triode Curves
  53. twisted pair signal, source selector and ground buss???
  54. Tiny Amplifiers
  55. A newly aquired Hum
  56. many jan tubes
  57. is this the correct way of adding a volume control?
  58. Basic DIY Valve Phono Stage
  59. 5879 Experience?
  60. personal jobs
  61. Wanted Triode strapped curves for pentode of ECL82.
  62. source selector / volume hum in Aikido
  63. DHTs and Cathode Bias
  64. Best SET driver stage with lots of B+?
  65. Tube Library Pspice error
  66. referencing DC heater to B+
  67. Double floating Circlotron
  68. Supply Capacitors ?
  69. Sakuma style Tango project
  70. MC10L is good or not
  71. Eico HF-20 & Claus Byrith PS voltage & power draw
  72. Voltage Regulator Tubes
  73. EL34 triode-connected grounding-grid curves?
  74. Pls help me understand AR SP6 circuit
  75. good begginer project (ax84 v.s. boozhound)
  76. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  77. Trouble in a new DIY amp.
  78. Suitable Transformers
  79. PT winding calculations HELP
  80. How to measure frequency response with a PC?
  81. Pspice Tube Generation Software
  82. Tektron tube amplifier Italy made
  83. What to do with 2x Stancor A3830?
  84. REQ: Schematics and tweaking tips
  85. Jadis Da 60 & 80
  86. 6L6 for a beginner, plus ECL86/6GW8
  87. Leak Stereo 20 clone? possibly with 6V6?
  88. Any comment on Vacuum State dpa300b??
  89. Radiotron Designers Handbook
  90. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  91. 12B4 eqivalent : sonics-wise ?
  92. Any Eimac Scematics?
  93. What's a 6SL7 Good For?
  94. Where Can Buy 6c41
  95. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  96. use a 45 to drive a 45 ?
  97. Regulated heater reference
  98. Heater Elevation, how high?
  99. 6201 alternative
  100. 4V Tentlabs filament supply
  101. Difference between stereo & 2 monoblocks
  102. Parallel operation of triodes.
  103. input tubes using 6922?
  104. Looking for choices - affordable PP OPTs
  105. removing HF damping pF caps for guitar
  106. HH Scott Transformer #s
  107. Tips for rebuilding this amp?
  108. Need advice - what can I build with this power transformer?
  109. Source for high voltage electro caps
  110. differences between K-12M and K-12G kits?
  111. 12B4 Line Stage with Fixed Bias?
  112. split push-pull output stage
  113. any thoughts/explanation on the power supply for this circuit?
  114. Where to begin on a PP?
  115. ProAc Tablette 50 Speakers
  116. Recognizing wiped out ECC's 81,82,83
  117. So tell me.... how did YOU get into tubes??
  118. 7189 or 7819 el84 tube?
  119. Question about Star Grounding
  120. Employment offered; breadboarding a Tube Monoblock
  121. Need help: Looking for ECF80 preamp schematic
  122. a 5AR4 after a diode bridge? what is the purpose?
  123. 807 & Pe 06/40n
  124. Board layout design
  125. 12AX7, 12AU7 Substitution
  126. 200,000 Tubes for sale in Michigan
  127. Ground scheme
  128. Help on 6L6GC Triode PP..working points..
  129. A neat trick?
  130. Setup & Implementation of G Pimm's Self-Bias CCS
  131. Tube Preamp FM interference
  132. Parafeed 6EM7 with 2k load?
  133. Need Help on HEATHKIT W-5M Power Transformer
  134. Fully isolated oilbath transformer.
  135. small signal DHT or DHP like AVVT20/8?
  136. EL 84 Pentode Config.
  137. Amp Tubes
  138. Can I replace the 1M volume pot with a 100K one in my HK A300?
  139. what's a hum band?
  140. Tube phono pre-amp needed.
  141. U/L or triode mode on music angel amp
  142. Why do some people dislike ultralinear?
  143. Adaptive class A
  144. 6X4 Tube rectifier.
  145. AN Conquest Clone modification
  146. Beautiful tubes.
  147. Selectable EL34/6L6 Amp OT
  148. Simple circlotron amp
  149. 12AX7 how many is enough?
  150. samples of 300B in pse or pp
  151. power supply choke with a connection for AC ground?
  152. Heathkit A7E for guitar - preamp gain
  153. musical fidelity x10d schematic
  154. Pot Value
  155. Eico 666 (satan's choice) tube tester help.
  156. Finally built a subminiature guitar amp... now I need help!
  157. Minor crackling in new valves
  158. Matchless Lightning v Spitfire
  159. Aikido linestage Help Needed
  160. Scott 299A Schematic
  161. Q on PP & current mirrors
  162. Calculating PT headroom in PP class AB
  163. EL34 Failure
  164. Aikido Transformer recommendation
  165. No mains transformer B+ ?
  166. Help with horizontal mounting of 01-A and VR tubes
  167. twisted pair wiring on a tube amp
  168. Calculating SE Output Question
  169. Fixed-Bias Williamson EL34
  170. Bogen CHB-35 Preamp Mod
  171. resistors and sonic effects?
  172. tamura F-683 pole question
  173. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  174. vtl deluxe 300 mb
  175. Is SD a Schottky Diode in this schematic?
  176. Maida regulator
  177. 572B vs 845 vs 211 SE
  178. Yet Another EL84 Amp
  179. Regulator for tube pre
  180. referencing heater supply ground to B+
  181. One Question for Hammond 1620 output transformer
  182. Bias adjustment on Dynaco ST70
  183. To SRPP or not?
  184. Ampeg SVT-VR or SVT-CL Schematics
  185. 811 vs 811A?
  186. Bogen integrated stereo amp
  187. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  188. Broken 6L6WXT tube
  189. transformer questions
  190. Microphone With A Low Impedance Tube
  191. 6EM7 Push-Pull
  192. polarity of Xicon electrolytics
  193. SE EL84 question
  194. Slightly Different guitar amp question
  195. ST-70 Power Transformer Info
  196. My new quad SED EL34 arrived
  197. isolation transformer for 50C5 amp
  198. DSP and vacuum tubes (from Analog Devices)
  199. Asymmetrical P-P OPT Primary
  200. Gated beam discriminator "amplifier"
  201. PCB Mount Loctal Socket?
  202. "Zero bias"/ driving the grid positive
  203. Low Profile Power Transformer Help
  204. Lowering Gain on an Aikido Preamp
  205. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  206. Tube vs. SS CCS...
  207. Another "I need an amp recommendation" thread
  208. i am a new one here
  209. i am new ! can you help me
  210. Pentode CCS: Would somebody check my work?
  211. PSU for 12V DC heaters
  212. 50C5 Triode strapped?
  213. homemade faceplates
  214. Can I build this?
  215. Heptode audio preamp? ECH83
  216. E130L in Triode mode
  217. class AB2 who's using it for hifi?
  218. Obscure radio tube
  219. another mingda
  220. tube hum in Aikido
  221. equivalent input impedance
  222. 6DG6GT "Magic Amp"
  223. Solen Fast Cap vs ASC film/oils in PS
  224. Tektronix transformers
  225. *very* basic plate resistance Q
  226. Yaqin MC-5881A amplifier improvements
  227. Tube design software
  228. More wasted space
  229. Radio tube guitar preamp
  230. PC Mount Novar Socket Suppliers
  231. Planning my first project
  232. Power Transformer leakage
  233. current sensing in series with anode resistors
  234. Please recommend a 9-pin dual triode = 417A
  235. Dynaco Pas 2
  236. Anyone have accurate charts for a KT90?
  237. Calling all Phono Preamp gurus, I'm looking for some plans
  238. Measuring Unknown Transformers
  239. Swinging choke vs std. choke in PS
  240. scope tests on a Heathkit A7E
  241. tube hum in a 6SN7 Aikido - is this weird?
  242. ECC807 preamp
  243. Ode to the 8416
  244. CCS 10M45 in Cathode of CF Driver
  245. Audionics help
  246. what 8-pin tubes would you suggest for an aikido preamp?
  247. KT88 tubes
  248. Any one tried these transformers?
  249. Williamson 6L6 Monoblocks (Finally)
  250. Master Volume preamp.. simple?

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