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  1. How to measure frequency response with a PC?
  2. Pspice Tube Generation Software
  3. Tektron tube amplifier Italy made
  4. What to do with 2x Stancor A3830?
  5. REQ: Schematics and tweaking tips
  6. Jadis Da 60 & 80
  7. 6L6 for a beginner, plus ECL86/6GW8
  8. Leak Stereo 20 clone? possibly with 6V6?
  9. Any comment on Vacuum State dpa300b??
  10. Radiotron Designers Handbook
  11. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  12. 12B4 eqivalent : sonics-wise ?
  13. Any Eimac Scematics?
  14. What's a 6SL7 Good For?
  15. Where Can Buy 6c41
  16. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  17. use a 45 to drive a 45 ?
  18. Regulated heater reference
  19. Heater Elevation, how high?
  20. 6201 alternative
  21. 4V Tentlabs filament supply
  22. Difference between stereo & 2 monoblocks
  23. Parallel operation of triodes.
  24. input tubes using 6922?
  25. Looking for choices - affordable PP OPTs
  26. HH Scott Transformer #s
  27. Tips for rebuilding this amp?
  28. Need advice - what can I build with this power transformer?
  29. Source for high voltage electro caps
  30. differences between K-12M and K-12G kits?
  31. 12B4 Line Stage with Fixed Bias?
  32. split push-pull output stage
  33. any thoughts/explanation on the power supply for this circuit?
  34. Where to begin on a PP?
  35. ProAc Tablette 50 Speakers
  36. Recognizing wiped out ECC's 81,82,83
  37. So tell me.... how did YOU get into tubes??
  38. 7189 or 7819 el84 tube?
  39. Question about Star Grounding
  40. Employment offered; breadboarding a Tube Monoblock
  41. Need help: Looking for ECF80 preamp schematic
  42. a 5AR4 after a diode bridge? what is the purpose?
  43. 807 & Pe 06/40n
  44. Board layout design
  45. 12AX7, 12AU7 Substitution
  46. 200,000 Tubes for sale in Michigan
  47. Ground scheme
  48. Help on 6L6GC Triode PP..working points..
  49. A neat trick?
  50. Setup & Implementation of G Pimm's Self-Bias CCS
  51. Tube Preamp FM interference
  52. Parafeed 6EM7 with 2k load?
  53. Need Help on HEATHKIT W-5M Power Transformer
  54. Fully isolated oilbath transformer.
  55. small signal DHT or DHP like AVVT20/8?
  56. EL 84 Pentode Config.
  57. Amp Tubes
  58. Can I replace the 1M volume pot with a 100K one in my HK A300?
  59. what's a hum band?
  60. Tube phono pre-amp needed.
  61. U/L or triode mode on music angel amp
  62. Why do some people dislike ultralinear?
  63. Adaptive class A
  64. 6X4 Tube rectifier.
  65. AN Conquest Clone modification
  66. Beautiful tubes.
  67. Selectable EL34/6L6 Amp OT
  68. Simple circlotron amp
  69. 12AX7 how many is enough?
  70. samples of 300B in pse or pp
  71. power supply choke with a connection for AC ground?
  72. musical fidelity x10d schematic
  73. Pot Value
  74. Eico 666 (satan's choice) tube tester help.
  75. Minor crackling in new valves
  76. Aikido linestage Help Needed
  77. Scott 299A Schematic
  78. Q on PP & current mirrors
  79. Calculating PT headroom in PP class AB
  80. EL34 Failure
  81. Aikido Transformer recommendation
  82. No mains transformer B+ ?
  83. Help with horizontal mounting of 01-A and VR tubes
  84. twisted pair wiring on a tube amp
  85. Calculating SE Output Question
  86. Fixed-Bias Williamson EL34
  87. Bogen CHB-35 Preamp Mod
  88. resistors and sonic effects?
  89. tamura F-683 pole question
  90. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  91. vtl deluxe 300 mb
  92. Is SD a Schottky Diode in this schematic?
  93. Maida regulator
  94. 572B vs 845 vs 211 SE
  95. Yet Another EL84 Amp
  96. Regulator for tube pre
  97. referencing heater supply ground to B+
  98. One Question for Hammond 1620 output transformer
  99. Bias adjustment on Dynaco ST70
  100. To SRPP or not?
  101. 811 vs 811A?
  102. Bogen integrated stereo amp
  103. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  104. Broken 6L6WXT tube
  105. transformer questions
  106. Microphone With A Low Impedance Tube
  107. 6EM7 Push-Pull
  108. polarity of Xicon electrolytics
  109. SE EL84 question
  110. ST-70 Power Transformer Info
  111. My new quad SED EL34 arrived
  112. isolation transformer for 50C5 amp
  113. DSP and vacuum tubes (from Analog Devices)
  114. Asymmetrical P-P OPT Primary
  115. Gated beam discriminator "amplifier"
  116. PCB Mount Loctal Socket?
  117. "Zero bias"/ driving the grid positive
  118. Low Profile Power Transformer Help
  119. Lowering Gain on an Aikido Preamp
  120. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  121. Tube vs. SS CCS...
  122. Another "I need an amp recommendation" thread
  123. i am a new one here
  124. i am new ! can you help me
  125. Pentode CCS: Would somebody check my work?
  126. PSU for 12V DC heaters
  127. 50C5 Triode strapped?
  128. homemade faceplates
  129. Can I build this?
  130. Heptode audio preamp? ECH83
  131. E130L in Triode mode
  132. class AB2 who's using it for hifi?
  133. Obscure radio tube
  134. another mingda
  135. tube hum in Aikido
  136. equivalent input impedance
  137. 6DG6GT "Magic Amp"
  138. Solen Fast Cap vs ASC film/oils in PS
  139. Tektronix transformers
  140. *very* basic plate resistance Q
  141. Yaqin MC-5881A amplifier improvements
  142. Tube design software
  143. More wasted space
  144. PC Mount Novar Socket Suppliers
  145. Planning my first project
  146. Power Transformer leakage
  147. current sensing in series with anode resistors
  148. Please recommend a 9-pin dual triode = 417A
  149. Dynaco Pas 2
  150. Anyone have accurate charts for a KT90?
  151. Calling all Phono Preamp gurus, I'm looking for some plans
  152. Measuring Unknown Transformers
  153. Swinging choke vs std. choke in PS
  154. scope tests on a Heathkit A7E
  155. tube hum in a 6SN7 Aikido - is this weird?
  156. ECC807 preamp
  157. Ode to the 8416
  158. CCS 10M45 in Cathode of CF Driver
  159. Audionics help
  160. what 8-pin tubes would you suggest for an aikido preamp?
  161. KT88 tubes
  162. Any one tried these transformers?
  163. Williamson 6L6 Monoblocks (Finally)
  164. Master Volume preamp.. simple?
  165. ~2 watt SET decision
  166. retube order
  167. MC Riaa preamp help/opinions please
  168. WTB Fairchild 260 transformers
  169. Peter Millet amp
  170. Power Regulator PCB's and Aikido parts
  171. A heater wiring DOH! moment??
  172. hum in fisher 800c phono section
  173. Aikido warm-up hum, resistor types, etc.
  174. Any of these tubes good for amps?
  175. Mini 98 El84 PP amplifier
  176. 1X6S33S=6X6S19P which one gives less impedance?
  177. schematic for 12.6 VDC heaters
  178. PP transformer for SE?? Help!
  179. 7-pin miniature tubes for audio?
  180. 6L6GT vs. EL34/6CA7 and WHY?
  181. Tube rectifier help
  182. KT88 Lifetime estimation
  183. Adjustable distributed load discussion
  184. Thyratron voltage regulation
  185. switch-on, switch-off sequence for preamp/amp
  186. Found Meixing Amp schematic, sorta, would like some feedback
  187. Tube Voltage Regulator Flicker...
  188. Projects...How does one decide ?
  189. Best 6550's for the money....
  190. SMPS and tubes
  191. Looking for Eico 1030 manual/schematic
  192. 6AS7 OTL
  193. Gary Pimm's site down?
  194. 805 + 300b Amplifier Schematic
  195. Music Angel Amplifiers
  196. MM Phono stage (kit?) for tube newbie
  197. Russian tube dealer?
  198. STA1 + amp vs K-12M
  199. cheap ebay KT88 amp
  200. Tubes at low +B...
  201. Converting a yarland amp to drive headphones
  202. Starting a component system
  203. Really elementary question about caps.
  204. Tube newbie with Scott 299B
  205. 12AV7- 5965 Vs 12AY7
  206. PX25 tubes in a 300B Amp?
  207. help with a choke.
  208. 60Hz buzzing
  209. nuvistor bias with 18V ?
  210. ground bus for inputs on preamp - what's best?
  211. Voltage drop of various regulators in dc regulated power supply for preamp
  212. Does anyone recognise this tube amp?
  213. Entry level tube amp
  214. Anyone build/use 6BG6G?
  215. KT-77 Blues
  216. Dynaco Information MArk II Required
  217. tube test numbers - what do they mean?
  218. foolish notion, 12GN7 model?
  219. First-Timer Doubts: K-12 or Gainclone?
  220. Eico ST70 Rebuild / Upgrade
  221. More power in this
  222. Help modifiying schematic
  223. Simple Variable Tube Power Supply
  224. bias voltage vs bias current
  225. All the Bias options
  226. 6N6G looks like a great audio tube. . .
  227. Variable bias
  228. Tube amp on a budget
  229. tung sol
  230. How cool is tube deep cooling?
  231. 12B4 Equivalents?
  232. KT88 pp triode control grid resistor????
  233. Duncan Amps spice model docs...
  234. Hum in Legend amp
  235. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  236. Mullard high speed tester
  237. Joining two NCT transformers
  238. Stereo Driver PCB for PP Amp (EL34/KT88)?
  239. Tube Integrated Amp Kit Project
  240. 866A transient over-current capability?
  241. 6HS8 tubes for volume control
  242. cathode for plate ccs ?
  243. Broken Tube pin guides
  244. I need a 120v ct transformer... Where to look?
  245. Best production EL34?
  246. 6DJ8 or 12AT7
  247. 6L6 Single Ended Flea Amp?
  248. Se Tranny used on Parafeed!!!
  249. Hammond 270 series power transformer?
  250. 6aq5.......6v6.......

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