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  1. Kofi Annan in: "Oscillatin' in the Bevois Valley'"
  2. Subwoofer connections
  3. 6/30L2 - What to do with them ?
  4. PIONEER SA-810 Tube Amp Schematics
  5. EF86 Gm
  6. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  7. Aria 6P14 makeover.
  8. switch for paralelled tube
  9. Curvecaptor with pentodes??
  10. Ground point for HF decoupling cap?
  11. Cancelling Harmonics
  12. Quiet Tube
  13. LM385 Adjustable voltage ref. diode as LED bias?
  14. Tubed Expression Pedal
  15. Any spice models around for AA5-esque battery tubes?
  16. Where to connect shielding
  17. Bogen K15 convert to guitar amp
  18. Help 805 As that the friend makes to straighten even gallbladder machine
  19. studiogear of the beatles
  20. 6AK5 Triode Curves
  21. twisted pair signal, source selector and ground buss???
  22. Tiny Amplifiers
  23. A newly aquired Hum
  24. many jan tubes
  25. is this the correct way of adding a volume control?
  26. Basic DIY Valve Phono Stage
  27. 5879 Experience?
  28. personal jobs
  29. Wanted Triode strapped curves for pentode of ECL82.
  30. source selector / volume hum in Aikido
  31. DHTs and Cathode Bias
  32. Best SET driver stage with lots of B+?
  33. Tube Library Pspice error
  34. referencing DC heater to B+
  35. Double floating Circlotron
  36. Supply Capacitors ?
  37. Sakuma style Tango project
  38. MC10L is good or not
  39. Eico HF-20 & Claus Byrith PS voltage & power draw
  40. Voltage Regulator Tubes
  41. EL34 triode-connected grounding-grid curves?
  42. Pls help me understand AR SP6 circuit
  43. good begginer project (ax84 v.s. boozhound)
  44. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  45. Trouble in a new DIY amp.
  46. Suitable Transformers
  47. PT winding calculations HELP
  48. How to measure frequency response with a PC?
  49. Pspice Tube Generation Software
  50. Tektron tube amplifier Italy made
  51. What to do with 2x Stancor A3830?
  52. REQ: Schematics and tweaking tips
  53. Jadis Da 60 & 80
  54. 6L6 for a beginner, plus ECL86/6GW8
  55. Leak Stereo 20 clone? possibly with 6V6?
  56. Any comment on Vacuum State dpa300b??
  57. Radiotron Designers Handbook
  58. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  59. 12B4 eqivalent : sonics-wise ?
  60. Any Eimac Scematics?
  61. What's a 6SL7 Good For?
  62. Where Can Buy 6c41
  63. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  64. use a 45 to drive a 45 ?
  65. Regulated heater reference
  66. Heater Elevation, how high?
  67. 6201 alternative
  68. 4V Tentlabs filament supply
  69. Difference between stereo & 2 monoblocks
  70. Parallel operation of triodes.
  71. input tubes using 6922?
  72. Looking for choices - affordable PP OPTs
  73. removing HF damping pF caps for guitar
  74. HH Scott Transformer #s
  75. Tips for rebuilding this amp?
  76. Need advice - what can I build with this power transformer?
  77. Source for high voltage electro caps
  78. differences between K-12M and K-12G kits?
  79. 12B4 Line Stage with Fixed Bias?
  80. split push-pull output stage
  81. any thoughts/explanation on the power supply for this circuit?
  82. Where to begin on a PP?
  83. ProAc Tablette 50 Speakers
  84. Recognizing wiped out ECC's 81,82,83
  85. So tell me.... how did YOU get into tubes??
  86. 7189 or 7819 el84 tube?
  87. Question about Star Grounding
  88. Employment offered; breadboarding a Tube Monoblock
  89. Need help: Looking for ECF80 preamp schematic
  90. a 5AR4 after a diode bridge? what is the purpose?
  91. 807 & Pe 06/40n
  92. Board layout design
  93. 12AX7, 12AU7 Substitution
  94. 200,000 Tubes for sale in Michigan
  95. Ground scheme
  96. Help on 6L6GC Triode PP..working points..
  97. A neat trick?
  98. Setup & Implementation of G Pimm's Self-Bias CCS
  99. Tube Preamp FM interference
  100. Parafeed 6EM7 with 2k load?
  101. Need Help on HEATHKIT W-5M Power Transformer
  102. Fully isolated oilbath transformer.
  103. small signal DHT or DHP like AVVT20/8?
  104. EL 84 Pentode Config.
  105. Amp Tubes
  106. Can I replace the 1M volume pot with a 100K one in my HK A300?
  107. what's a hum band?
  108. Tube phono pre-amp needed.
  109. U/L or triode mode on music angel amp
  110. Why do some people dislike ultralinear?
  111. Adaptive class A
  112. 6X4 Tube rectifier.
  113. AN Conquest Clone modification
  114. Beautiful tubes.
  115. Selectable EL34/6L6 Amp OT
  116. Simple circlotron amp
  117. 12AX7 how many is enough?
  118. samples of 300B in pse or pp
  119. power supply choke with a connection for AC ground?
  120. Heathkit A7E for guitar - preamp gain
  121. musical fidelity x10d schematic
  122. Pot Value
  123. Eico 666 (satan's choice) tube tester help.
  124. Finally built a subminiature guitar amp... now I need help!
  125. Minor crackling in new valves
  126. Matchless Lightning v Spitfire
  127. Aikido linestage Help Needed
  128. Scott 299A Schematic
  129. Q on PP & current mirrors
  130. Calculating PT headroom in PP class AB
  131. EL34 Failure
  132. Aikido Transformer recommendation
  133. No mains transformer B+ ?
  134. Help with horizontal mounting of 01-A and VR tubes
  135. twisted pair wiring on a tube amp
  136. Calculating SE Output Question
  137. Fixed-Bias Williamson EL34
  138. Bogen CHB-35 Preamp Mod
  139. resistors and sonic effects?
  140. tamura F-683 pole question
  141. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  142. vtl deluxe 300 mb
  143. Is SD a Schottky Diode in this schematic?
  144. Maida regulator
  145. 572B vs 845 vs 211 SE
  146. Yet Another EL84 Amp
  147. Regulator for tube pre
  148. referencing heater supply ground to B+
  149. One Question for Hammond 1620 output transformer
  150. Bias adjustment on Dynaco ST70
  151. To SRPP or not?
  152. Ampeg SVT-VR or SVT-CL Schematics
  153. 811 vs 811A?
  154. Bogen integrated stereo amp
  155. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  156. Broken 6L6WXT tube
  157. transformer questions
  158. Microphone With A Low Impedance Tube
  159. 6EM7 Push-Pull
  160. polarity of Xicon electrolytics
  161. SE EL84 question
  162. Slightly Different guitar amp question
  163. ST-70 Power Transformer Info
  164. My new quad SED EL34 arrived
  165. isolation transformer for 50C5 amp
  166. DSP and vacuum tubes (from Analog Devices)
  167. Asymmetrical P-P OPT Primary
  168. Gated beam discriminator "amplifier"
  169. PCB Mount Loctal Socket?
  170. "Zero bias"/ driving the grid positive
  171. Low Profile Power Transformer Help
  172. Lowering Gain on an Aikido Preamp
  173. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  174. Tube vs. SS CCS...
  175. Another "I need an amp recommendation" thread
  176. i am a new one here
  177. i am new ! can you help me
  178. Pentode CCS: Would somebody check my work?
  179. PSU for 12V DC heaters
  180. 50C5 Triode strapped?
  181. homemade faceplates
  182. Can I build this?
  183. Heptode audio preamp? ECH83
  184. E130L in Triode mode
  185. class AB2 who's using it for hifi?
  186. Obscure radio tube
  187. another mingda
  188. tube hum in Aikido
  189. equivalent input impedance
  190. 6DG6GT "Magic Amp"
  191. Solen Fast Cap vs ASC film/oils in PS
  192. Tektronix transformers
  193. *very* basic plate resistance Q
  194. Yaqin MC-5881A amplifier improvements
  195. Tube design software
  196. More wasted space
  197. Radio tube guitar preamp
  198. PC Mount Novar Socket Suppliers
  199. Planning my first project
  200. Power Transformer leakage
  201. current sensing in series with anode resistors
  202. Please recommend a 9-pin dual triode = 417A
  203. Dynaco Pas 2
  204. Anyone have accurate charts for a KT90?
  205. Calling all Phono Preamp gurus, I'm looking for some plans
  206. Measuring Unknown Transformers
  207. Swinging choke vs std. choke in PS
  208. scope tests on a Heathkit A7E
  209. tube hum in a 6SN7 Aikido - is this weird?
  210. ECC807 preamp
  211. Ode to the 8416
  212. CCS 10M45 in Cathode of CF Driver
  213. Audionics help
  214. what 8-pin tubes would you suggest for an aikido preamp?
  215. KT88 tubes
  216. Any one tried these transformers?
  217. Williamson 6L6 Monoblocks (Finally)
  218. Master Volume preamp.. simple?
  219. ~2 watt SET decision
  220. retube order
  221. MC Riaa preamp help/opinions please
  222. WTB Fairchild 260 transformers
  223. Peter Millet amp
  224. 1946 Gibson BR-4 Amplifier tube question
  225. Power Regulator PCB's and Aikido parts
  226. A heater wiring DOH! moment??
  227. hum in fisher 800c phono section
  228. Aikido warm-up hum, resistor types, etc.
  229. Any of these tubes good for amps?
  230. Mini 98 El84 PP amplifier
  231. 1X6S33S=6X6S19P which one gives less impedance?
  232. schematic for 12.6 VDC heaters
  233. PP transformer for SE?? Help!
  234. 7-pin miniature tubes for audio?
  235. Tube Preamp as a Guitar Effect
  236. 6L6GT vs. EL34/6CA7 and WHY?
  237. Tube rectifier help
  238. Fender push pull amp... using one tube only.. is it dangerous?
  239. KT88 Lifetime estimation
  240. Adjustable distributed load discussion
  241. Thyratron voltage regulation
  242. switch-on, switch-off sequence for preamp/amp
  243. Found Meixing Amp schematic, sorta, would like some feedback
  244. Tube Voltage Regulator Flicker...
  245. Projects...How does one decide ?
  246. Best 6550's for the money....
  247. SMPS and tubes
  248. Looking for Eico 1030 manual/schematic
  249. 6AS7 OTL
  250. Gary Pimm's site down?