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  1. 6/30L2 - What to do with them ?
  2. PIONEER SA-810 Tube Amp Schematics
  3. EF86 Gm
  4. EL84/6BQ5 Ultra-Linear Push-Pull Recomendation
  5. Aria 6P14 makeover.
  6. switch for paralelled tube
  7. Curvecaptor with pentodes??
  8. Ground point for HF decoupling cap?
  9. Cancelling Harmonics
  10. Quiet Tube
  11. LM385 Adjustable voltage ref. diode as LED bias?
  12. Tubed Expression Pedal
  13. Any spice models around for AA5-esque battery tubes?
  14. Where to connect shielding
  15. Help 805 As that the friend makes to straighten even gallbladder machine
  16. studiogear of the beatles
  17. 6AK5 Triode Curves
  18. twisted pair signal, source selector and ground buss???
  19. Tiny Amplifiers
  20. A newly aquired Hum
  21. many jan tubes
  22. is this the correct way of adding a volume control?
  23. Basic DIY Valve Phono Stage
  24. 5879 Experience?
  25. personal jobs
  26. Wanted Triode strapped curves for pentode of ECL82.
  27. source selector / volume hum in Aikido
  28. DHTs and Cathode Bias
  29. Best SET driver stage with lots of B+?
  30. Tube Library Pspice error
  31. referencing DC heater to B+
  32. Double floating Circlotron
  33. Supply Capacitors ?
  34. Sakuma style Tango project
  35. MC10L is good or not
  36. Eico HF-20 & Claus Byrith PS voltage & power draw
  37. Voltage Regulator Tubes
  38. EL34 triode-connected grounding-grid curves?
  39. Pls help me understand AR SP6 circuit
  40. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  41. Trouble in a new DIY amp.
  42. Suitable Transformers
  43. PT winding calculations HELP
  44. How to measure frequency response with a PC?
  45. Pspice Tube Generation Software
  46. Tektron tube amplifier Italy made
  47. What to do with 2x Stancor A3830?
  48. REQ: Schematics and tweaking tips
  49. Jadis Da 60 & 80
  50. 6L6 for a beginner, plus ECL86/6GW8
  51. Leak Stereo 20 clone? possibly with 6V6?
  52. Any comment on Vacuum State dpa300b??
  53. Radiotron Designers Handbook
  54. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  55. 12B4 eqivalent : sonics-wise ?
  56. Any Eimac Scematics?
  57. What's a 6SL7 Good For?
  58. Where Can Buy 6c41
  59. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  60. use a 45 to drive a 45 ?
  61. Regulated heater reference
  62. Heater Elevation, how high?
  63. 6201 alternative
  64. 4V Tentlabs filament supply
  65. Difference between stereo & 2 monoblocks
  66. Parallel operation of triodes.
  67. input tubes using 6922?
  68. Looking for choices - affordable PP OPTs
  69. HH Scott Transformer #s
  70. Tips for rebuilding this amp?
  71. Need advice - what can I build with this power transformer?
  72. differences between K-12M and K-12G kits?
  73. 12B4 Line Stage with Fixed Bias?
  74. split push-pull output stage
  75. any thoughts/explanation on the power supply for this circuit?
  76. Where to begin on a PP?
  77. ProAc Tablette 50 Speakers
  78. Recognizing wiped out ECC's 81,82,83
  79. So tell me.... how did YOU get into tubes??
  80. 7189 or 7819 el84 tube?
  81. Question about Star Grounding
  82. Employment offered; breadboarding a Tube Monoblock
  83. Need help: Looking for ECF80 preamp schematic
  84. a 5AR4 after a diode bridge? what is the purpose?
  85. 807 & Pe 06/40n
  86. Board layout design
  87. 12AX7, 12AU7 Substitution
  88. 200,000 Tubes for sale in Michigan
  89. Ground scheme
  90. Help on 6L6GC Triode PP..working points..
  91. A neat trick?
  92. Setup & Implementation of G Pimm's Self-Bias CCS
  93. Tube Preamp FM interference
  94. Parafeed 6EM7 with 2k load?
  95. Need Help on HEATHKIT W-5M Power Transformer
  96. Fully isolated oilbath transformer.
  97. small signal DHT or DHP like AVVT20/8?
  98. EL 84 Pentode Config.
  99. Amp Tubes
  100. Can I replace the 1M volume pot with a 100K one in my HK A300?
  101. what's a hum band?
  102. Tube phono pre-amp needed.
  103. U/L or triode mode on music angel amp
  104. Why do some people dislike ultralinear?
  105. Adaptive class A
  106. 6X4 Tube rectifier.
  107. AN Conquest Clone modification
  108. Beautiful tubes.
  109. Selectable EL34/6L6 Amp OT
  110. Simple circlotron amp
  111. 12AX7 how many is enough?
  112. samples of 300B in pse or pp
  113. power supply choke with a connection for AC ground?
  114. musical fidelity x10d schematic
  115. Pot Value
  116. Minor crackling in new valves
  117. Aikido linestage Help Needed
  118. Scott 299A Schematic
  119. Q on PP & current mirrors
  120. Calculating PT headroom in PP class AB
  121. EL34 Failure
  122. Aikido Transformer recommendation
  123. No mains transformer B+ ?
  124. Help with horizontal mounting of 01-A and VR tubes
  125. twisted pair wiring on a tube amp
  126. Calculating SE Output Question
  127. Fixed-Bias Williamson EL34
  128. Bogen CHB-35 Preamp Mod
  129. resistors and sonic effects?
  130. tamura F-683 pole question
  131. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  132. vtl deluxe 300 mb
  133. Is SD a Schottky Diode in this schematic?
  134. Maida regulator
  135. 572B vs 845 vs 211 SE
  136. Yet Another EL84 Amp
  137. Regulator for tube pre
  138. referencing heater supply ground to B+
  139. One Question for Hammond 1620 output transformer
  140. Bias adjustment on Dynaco ST70
  141. To SRPP or not?
  142. 811 vs 811A?
  143. Bogen integrated stereo amp
  144. Audionote Japan (Kondo) Ongaku... Can I Clone to DIY!
  145. Broken 6L6WXT tube
  146. transformer questions
  147. Microphone With A Low Impedance Tube
  148. 6EM7 Push-Pull
  149. polarity of Xicon electrolytics
  150. SE EL84 question
  151. ST-70 Power Transformer Info
  152. My new quad SED EL34 arrived
  153. isolation transformer for 50C5 amp
  154. DSP and vacuum tubes (from Analog Devices)
  155. Asymmetrical P-P OPT Primary
  156. Gated beam discriminator "amplifier"
  157. PCB Mount Loctal Socket?
  158. "Zero bias"/ driving the grid positive
  159. Low Profile Power Transformer Help
  160. Lowering Gain on an Aikido Preamp
  161. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  162. Tube vs. SS CCS...
  163. Another "I need an amp recommendation" thread
  164. i am a new one here
  165. i am new ! can you help me
  166. Pentode CCS: Would somebody check my work?
  167. PSU for 12V DC heaters
  168. 50C5 Triode strapped?
  169. homemade faceplates
  170. Can I build this?
  171. Heptode audio preamp? ECH83
  172. E130L in Triode mode
  173. class AB2 who's using it for hifi?
  174. Obscure radio tube
  175. another mingda
  176. tube hum in Aikido
  177. equivalent input impedance
  178. 6DG6GT "Magic Amp"
  179. Tektronix transformers
  180. *very* basic plate resistance Q
  181. Yaqin MC-5881A amplifier improvements
  182. Tube design software
  183. More wasted space
  184. PC Mount Novar Socket Suppliers
  185. Planning my first project
  186. Power Transformer leakage
  187. current sensing in series with anode resistors
  188. Please recommend a 9-pin dual triode = 417A
  189. Dynaco Pas 2
  190. Anyone have accurate charts for a KT90?
  191. Calling all Phono Preamp gurus, I'm looking for some plans
  192. Measuring Unknown Transformers
  193. Swinging choke vs std. choke in PS
  194. scope tests on a Heathkit A7E
  195. tube hum in a 6SN7 Aikido - is this weird?
  196. ECC807 preamp
  197. Ode to the 8416
  198. CCS 10M45 in Cathode of CF Driver
  199. Audionics help
  200. what 8-pin tubes would you suggest for an aikido preamp?
  201. KT88 tubes
  202. Any one tried these transformers?
  203. Williamson 6L6 Monoblocks (Finally)
  204. ~2 watt SET decision
  205. retube order
  206. MC Riaa preamp help/opinions please
  207. WTB Fairchild 260 transformers
  208. Peter Millet amp
  209. Power Regulator PCB's and Aikido parts
  210. A heater wiring DOH! moment??
  211. hum in fisher 800c phono section
  212. Aikido warm-up hum, resistor types, etc.
  213. Any of these tubes good for amps?
  214. Mini 98 El84 PP amplifier
  215. 1X6S33S=6X6S19P which one gives less impedance?
  216. schematic for 12.6 VDC heaters
  217. PP transformer for SE?? Help!
  218. 7-pin miniature tubes for audio?
  219. 6L6GT vs. EL34/6CA7 and WHY?
  220. Tube rectifier help
  221. KT88 Lifetime estimation
  222. Adjustable distributed load discussion
  223. Thyratron voltage regulation
  224. switch-on, switch-off sequence for preamp/amp
  225. Found Meixing Amp schematic, sorta, would like some feedback
  226. Tube Voltage Regulator Flicker...
  227. Projects...How does one decide ?
  228. Best 6550's for the money....
  229. SMPS and tubes
  230. Looking for Eico 1030 manual/schematic
  231. 6AS7 OTL
  232. Gary Pimm's site down?
  233. 805 + 300b Amplifier Schematic
  234. Music Angel Amplifiers
  235. MM Phono stage (kit?) for tube newbie
  236. Russian tube dealer?
  237. STA1 + amp vs K-12M
  238. cheap ebay KT88 amp
  239. Tubes at low +B...
  240. Converting a yarland amp to drive headphones
  241. Starting a component system
  242. Tube newbie with Scott 299B
  243. 12AV7- 5965 Vs 12AY7
  244. PX25 tubes in a 300B Amp?
  245. help with a choke.
  246. 60Hz buzzing
  247. nuvistor bias with 18V ?
  248. ground bus for inputs on preamp - what's best?
  249. Voltage drop of various regulators in dc regulated power supply for preamp
  250. Does anyone recognise this tube amp?

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