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  1. personal jobs
  2. Wanted Triode strapped curves for pentode of ECL82.
  3. source selector / volume hum in Aikido
  4. DHTs and Cathode Bias
  5. Best SET driver stage with lots of B+?
  6. Tube Library Pspice error
  7. referencing DC heater to B+
  8. Double floating Circlotron
  9. Supply Capacitors ?
  10. Sakuma style Tango project
  11. MC10L is good or not
  12. Eico HF-20 & Claus Byrith PS voltage & power draw
  13. Voltage Regulator Tubes
  14. EL34 triode-connected grounding-grid curves?
  15. Pls help me understand AR SP6 circuit
  16. good begginer project (ax84 v.s. boozhound)
  17. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  18. Trouble in a new DIY amp.
  19. Suitable Transformers
  20. PT winding calculations HELP
  21. How to measure frequency response with a PC?
  22. Pspice Tube Generation Software
  23. Tektron tube amplifier Italy made
  24. What to do with 2x Stancor A3830?
  25. REQ: Schematics and tweaking tips
  26. Jadis Da 60 & 80
  27. 6L6 for a beginner, plus ECL86/6GW8
  28. Leak Stereo 20 clone? possibly with 6V6?
  29. Any comment on Vacuum State dpa300b??
  30. Radiotron Designers Handbook
  31. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  32. 12B4 eqivalent : sonics-wise ?
  33. Any Eimac Scematics?
  34. What's a 6SL7 Good For?
  35. Where Can Buy 6c41
  36. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  37. use a 45 to drive a 45 ?
  38. Regulated heater reference
  39. Heater Elevation, how high?
  40. 6201 alternative
  41. 4V Tentlabs filament supply
  42. Difference between stereo & 2 monoblocks
  43. Parallel operation of triodes.
  44. input tubes using 6922?
  45. Looking for choices - affordable PP OPTs
  46. removing HF damping pF caps for guitar
  47. HH Scott Transformer #s
  48. Tips for rebuilding this amp?
  49. Need advice - what can I build with this power transformer?
  50. Source for high voltage electro caps
  51. differences between K-12M and K-12G kits?
  52. 12B4 Line Stage with Fixed Bias?
  53. split push-pull output stage
  54. any thoughts/explanation on the power supply for this circuit?
  55. Where to begin on a PP?
  56. ProAc Tablette 50 Speakers
  57. Recognizing wiped out ECC's 81,82,83
  58. So tell me.... how did YOU get into tubes??
  59. 7189 or 7819 el84 tube?
  60. Question about Star Grounding
  61. Employment offered; breadboarding a Tube Monoblock
  62. Need help: Looking for ECF80 preamp schematic
  63. a 5AR4 after a diode bridge? what is the purpose?
  64. 807 & Pe 06/40n
  65. Board layout design
  66. 12AX7, 12AU7 Substitution
  67. 200,000 Tubes for sale in Michigan
  68. Ground scheme
  69. Help on 6L6GC Triode PP..working points..
  70. A neat trick?
  71. Setup & Implementation of G Pimm's Self-Bias CCS
  72. Tube Preamp FM interference
  73. Parafeed 6EM7 with 2k load?
  74. Need Help on HEATHKIT W-5M Power Transformer
  75. Fully isolated oilbath transformer.
  76. small signal DHT or DHP like AVVT20/8?
  77. EL 84 Pentode Config.
  78. Amp Tubes
  79. Can I replace the 1M volume pot with a 100K one in my HK A300?
  80. what's a hum band?
  81. Tube phono pre-amp needed.
  82. U/L or triode mode on music angel amp
  83. Why do some people dislike ultralinear?
  84. Adaptive class A
  85. 6X4 Tube rectifier.
  86. AN Conquest Clone modification
  87. Beautiful tubes.
  88. Selectable EL34/6L6 Amp OT
  89. Simple circlotron amp
  90. 12AX7 how many is enough?
  91. samples of 300B in pse or pp
  92. power supply choke with a connection for AC ground?
  93. Heathkit A7E for guitar - preamp gain
  94. musical fidelity x10d schematic
  95. Pot Value
  96. Eico 666 (satan's choice) tube tester help.
  97. Finally built a subminiature guitar amp... now I need help!
  98. Minor crackling in new valves
  99. Matchless Lightning v Spitfire
  100. Aikido linestage Help Needed
  101. Scott 299A Schematic
  102. Q on PP & current mirrors
  103. Calculating PT headroom in PP class AB
  104. EL34 Failure
  105. Aikido Transformer recommendation
  106. No mains transformer B+ ?
  107. Help with horizontal mounting of 01-A and VR tubes
  108. twisted pair wiring on a tube amp
  109. Calculating SE Output Question
  110. Fixed-Bias Williamson EL34
  111. Bogen CHB-35 Preamp Mod
  112. resistors and sonic effects?
  113. tamura F-683 pole question
  114. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  115. vtl deluxe 300 mb
  116. Is SD a Schottky Diode in this schematic?
  117. Maida regulator
  118. 572B vs 845 vs 211 SE
  119. Yet Another EL84 Amp
  120. Regulator for tube pre
  121. referencing heater supply ground to B+
  122. One Question for Hammond 1620 output transformer
  123. Bias adjustment on Dynaco ST70
  124. To SRPP or not?
  125. Ampeg SVT-VR or SVT-CL Schematics
  126. 811 vs 811A?
  127. Bogen integrated stereo amp
  128. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  129. Broken 6L6WXT tube
  130. transformer questions
  131. Microphone With A Low Impedance Tube
  132. 6EM7 Push-Pull
  133. polarity of Xicon electrolytics
  134. SE EL84 question
  135. Slightly Different guitar amp question
  136. ST-70 Power Transformer Info
  137. My new quad SED EL34 arrived
  138. isolation transformer for 50C5 amp
  139. DSP and vacuum tubes (from Analog Devices)
  140. Asymmetrical P-P OPT Primary
  141. Gated beam discriminator "amplifier"
  142. PCB Mount Loctal Socket?
  143. "Zero bias"/ driving the grid positive
  144. Low Profile Power Transformer Help
  145. Lowering Gain on an Aikido Preamp
  146. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  147. Tube vs. SS CCS...
  148. Another "I need an amp recommendation" thread
  149. i am a new one here
  150. i am new ! can you help me
  151. Pentode CCS: Would somebody check my work?
  152. PSU for 12V DC heaters
  153. 50C5 Triode strapped?
  154. homemade faceplates
  155. Can I build this?
  156. Heptode audio preamp? ECH83
  157. E130L in Triode mode
  158. class AB2 who's using it for hifi?
  159. Obscure radio tube
  160. another mingda
  161. tube hum in Aikido
  162. equivalent input impedance
  163. 6DG6GT "Magic Amp"
  164. Solen Fast Cap vs ASC film/oils in PS
  165. Tektronix transformers
  166. *very* basic plate resistance Q
  167. Yaqin MC-5881A amplifier improvements
  168. Tube design software
  169. More wasted space
  170. Radio tube guitar preamp
  171. PC Mount Novar Socket Suppliers
  172. Planning my first project
  173. Power Transformer leakage
  174. current sensing in series with anode resistors
  175. Please recommend a 9-pin dual triode = 417A
  176. Dynaco Pas 2
  177. Anyone have accurate charts for a KT90?
  178. Calling all Phono Preamp gurus, I'm looking for some plans
  179. Measuring Unknown Transformers
  180. Swinging choke vs std. choke in PS
  181. scope tests on a Heathkit A7E
  182. tube hum in a 6SN7 Aikido - is this weird?
  183. ECC807 preamp
  184. Ode to the 8416
  185. CCS 10M45 in Cathode of CF Driver
  186. Audionics help
  187. what 8-pin tubes would you suggest for an aikido preamp?
  188. KT88 tubes
  189. Any one tried these transformers?
  190. Williamson 6L6 Monoblocks (Finally)
  191. Master Volume preamp.. simple?
  192. ~2 watt SET decision
  193. retube order
  194. MC Riaa preamp help/opinions please
  195. WTB Fairchild 260 transformers
  196. Peter Millet amp
  197. 1946 Gibson BR-4 Amplifier tube question
  198. Power Regulator PCB's and Aikido parts
  199. A heater wiring DOH! moment??
  200. hum in fisher 800c phono section
  201. Aikido warm-up hum, resistor types, etc.
  202. Any of these tubes good for amps?
  203. Mini 98 El84 PP amplifier
  204. 1X6S33S=6X6S19P which one gives less impedance?
  205. schematic for 12.6 VDC heaters
  206. PP transformer for SE?? Help!
  207. 7-pin miniature tubes for audio?
  208. Tube Preamp as a Guitar Effect
  209. 6L6GT vs. EL34/6CA7 and WHY?
  210. Tube rectifier help
  211. Fender push pull amp... using one tube only.. is it dangerous?
  212. KT88 Lifetime estimation
  213. Adjustable distributed load discussion
  214. Thyratron voltage regulation
  215. switch-on, switch-off sequence for preamp/amp
  216. Found Meixing Amp schematic, sorta, would like some feedback
  217. Tube Voltage Regulator Flicker...
  218. Projects...How does one decide ?
  219. Best 6550's for the money....
  220. SMPS and tubes
  221. Looking for Eico 1030 manual/schematic
  222. 6AS7 OTL
  223. Gary Pimm's site down?
  224. 805 + 300b Amplifier Schematic
  225. Music Angel Amplifiers
  226. MM Phono stage (kit?) for tube newbie
  227. Russian tube dealer?
  228. STA1 + amp vs K-12M
  229. cheap ebay KT88 amp
  230. Tubes at low +B...
  231. Converting a yarland amp to drive headphones
  232. Starting a component system
  233. Really elementary question about caps.
  234. Tube newbie with Scott 299B
  235. 12AV7- 5965 Vs 12AY7
  236. PX25 tubes in a 300B Amp?
  237. help with a choke.
  238. 60Hz buzzing
  239. nuvistor bias with 18V ?
  240. ground bus for inputs on preamp - what's best?
  241. Voltage drop of various regulators in dc regulated power supply for preamp
  242. Does anyone recognise this tube amp?
  243. Entry level tube amp
  244. Anyone build/use 6BG6G?
  245. KT-77 Blues
  246. Dynaco Information MArk II Required
  247. tube test numbers - what do they mean?
  248. foolish notion, 12GN7 model?
  249. First-Timer Doubts: K-12 or Gainclone?
  250. Eico ST70 Rebuild / Upgrade

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