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  1. Aria 6P14 makeover.
  2. switch for paralelled tube
  3. Curvecaptor with pentodes??
  4. Ground point for HF decoupling cap?
  5. Cancelling Harmonics
  6. Quiet Tube
  7. LM385 Adjustable voltage ref. diode as LED bias?
  8. Tubed Expression Pedal
  9. Any spice models around for AA5-esque battery tubes?
  10. Where to connect shielding
  11. Bogen K15 convert to guitar amp
  12. Help 805 As that the friend makes to straighten even gallbladder machine
  13. studiogear of the beatles
  14. 6AK5 Triode Curves
  15. twisted pair signal, source selector and ground buss???
  16. Tiny Amplifiers
  17. A newly aquired Hum
  18. many jan tubes
  19. is this the correct way of adding a volume control?
  20. Basic DIY Valve Phono Stage
  21. 5879 Experience?
  22. personal jobs
  23. Wanted Triode strapped curves for pentode of ECL82.
  24. source selector / volume hum in Aikido
  25. DHTs and Cathode Bias
  26. Best SET driver stage with lots of B+?
  27. Tube Library Pspice error
  28. referencing DC heater to B+
  29. Double floating Circlotron
  30. Supply Capacitors ?
  31. Sakuma style Tango project
  32. MC10L is good or not
  33. Eico HF-20 & Claus Byrith PS voltage & power draw
  34. Voltage Regulator Tubes
  35. EL34 triode-connected grounding-grid curves?
  36. Pls help me understand AR SP6 circuit
  37. good begginer project (ax84 v.s. boozhound)
  38. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  39. Trouble in a new DIY amp.
  40. Suitable Transformers
  41. PT winding calculations HELP
  42. How to measure frequency response with a PC?
  43. Pspice Tube Generation Software
  44. Tektron tube amplifier Italy made
  45. What to do with 2x Stancor A3830?
  46. REQ: Schematics and tweaking tips
  47. Jadis Da 60 & 80
  48. 6L6 for a beginner, plus ECL86/6GW8
  49. Leak Stereo 20 clone? possibly with 6V6?
  50. Any comment on Vacuum State dpa300b??
  51. Radiotron Designers Handbook
  52. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  53. 12B4 eqivalent : sonics-wise ?
  54. Any Eimac Scematics?
  55. What's a 6SL7 Good For?
  56. Where Can Buy 6c41
  57. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  58. use a 45 to drive a 45 ?
  59. Regulated heater reference
  60. Heater Elevation, how high?
  61. 6201 alternative
  62. 4V Tentlabs filament supply
  63. Difference between stereo & 2 monoblocks
  64. Parallel operation of triodes.
  65. input tubes using 6922?
  66. Looking for choices - affordable PP OPTs
  67. removing HF damping pF caps for guitar
  68. HH Scott Transformer #s
  69. Tips for rebuilding this amp?
  70. Need advice - what can I build with this power transformer?
  71. Source for high voltage electro caps
  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. Heathkit A7E for guitar - preamp gain
  115. musical fidelity x10d schematic
  116. Pot Value
  117. Eico 666 (satan's choice) tube tester help.
  118. Finally built a subminiature guitar amp... now I need help!
  119. Minor crackling in new valves
  120. Matchless Lightning v Spitfire
  121. Aikido linestage Help Needed
  122. Scott 299A Schematic
  123. Q on PP & current mirrors
  124. Calculating PT headroom in PP class AB
  125. EL34 Failure
  126. Aikido Transformer recommendation
  127. No mains transformer B+ ?
  128. Help with horizontal mounting of 01-A and VR tubes
  129. twisted pair wiring on a tube amp
  130. Calculating SE Output Question
  131. Fixed-Bias Williamson EL34
  132. Bogen CHB-35 Preamp Mod
  133. resistors and sonic effects?
  134. tamura F-683 pole question
  135. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  136. vtl deluxe 300 mb
  137. Is SD a Schottky Diode in this schematic?
  138. Maida regulator
  139. 572B vs 845 vs 211 SE
  140. Yet Another EL84 Amp
  141. Regulator for tube pre
  142. referencing heater supply ground to B+
  143. One Question for Hammond 1620 output transformer
  144. Bias adjustment on Dynaco ST70
  145. To SRPP or not?
  146. Ampeg SVT-VR or SVT-CL Schematics
  147. 811 vs 811A?
  148. Bogen integrated stereo amp
  149. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  150. Broken 6L6WXT tube
  151. transformer questions
  152. Microphone With A Low Impedance Tube
  153. 6EM7 Push-Pull
  154. polarity of Xicon electrolytics
  155. SE EL84 question
  156. Slightly Different guitar amp question
  157. ST-70 Power Transformer Info
  158. My new quad SED EL34 arrived
  159. isolation transformer for 50C5 amp
  160. DSP and vacuum tubes (from Analog Devices)
  161. Asymmetrical P-P OPT Primary
  162. Gated beam discriminator "amplifier"
  163. PCB Mount Loctal Socket?
  164. "Zero bias"/ driving the grid positive
  165. Low Profile Power Transformer Help
  166. Lowering Gain on an Aikido Preamp
  167. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  168. Tube vs. SS CCS...
  169. Another "I need an amp recommendation" thread
  170. i am a new one here
  171. i am new ! can you help me
  172. Pentode CCS: Would somebody check my work?
  173. PSU for 12V DC heaters
  174. 50C5 Triode strapped?
  175. homemade faceplates
  176. Can I build this?
  177. Heptode audio preamp? ECH83
  178. E130L in Triode mode
  179. class AB2 who's using it for hifi?
  180. Obscure radio tube
  181. another mingda
  182. tube hum in Aikido
  183. equivalent input impedance
  184. 6DG6GT "Magic Amp"
  185. Solen Fast Cap vs ASC film/oils in PS
  186. Tektronix transformers
  187. *very* basic plate resistance Q
  188. Yaqin MC-5881A amplifier improvements
  189. Tube design software
  190. More wasted space
  191. Radio tube guitar preamp
  192. PC Mount Novar Socket Suppliers
  193. Planning my first project
  194. Power Transformer leakage
  195. current sensing in series with anode resistors
  196. Please recommend a 9-pin dual triode = 417A
  197. Dynaco Pas 2
  198. Anyone have accurate charts for a KT90?
  199. Calling all Phono Preamp gurus, I'm looking for some plans
  200. Measuring Unknown Transformers
  201. Swinging choke vs std. choke in PS
  202. scope tests on a Heathkit A7E
  203. tube hum in a 6SN7 Aikido - is this weird?
  204. ECC807 preamp
  205. Ode to the 8416
  206. CCS 10M45 in Cathode of CF Driver
  207. Audionics help
  208. what 8-pin tubes would you suggest for an aikido preamp?
  209. KT88 tubes
  210. Any one tried these transformers?
  211. Williamson 6L6 Monoblocks (Finally)
  212. Master Volume preamp.. simple?
  213. ~2 watt SET decision
  214. retube order
  215. MC Riaa preamp help/opinions please
  216. WTB Fairchild 260 transformers
  217. Peter Millet amp
  218. 1946 Gibson BR-4 Amplifier tube question
  219. Power Regulator PCB's and Aikido parts
  220. A heater wiring DOH! moment??
  221. hum in fisher 800c phono section
  222. Aikido warm-up hum, resistor types, etc.
  223. Any of these tubes good for amps?
  224. Mini 98 El84 PP amplifier
  225. 1X6S33S=6X6S19P which one gives less impedance?
  226. schematic for 12.6 VDC heaters
  227. PP transformer for SE?? Help!
  228. 7-pin miniature tubes for audio?
  229. Tube Preamp as a Guitar Effect
  230. 6L6GT vs. EL34/6CA7 and WHY?
  231. Tube rectifier help
  232. Fender push pull amp... using one tube only.. is it dangerous?
  233. KT88 Lifetime estimation
  234. Adjustable distributed load discussion
  235. Thyratron voltage regulation
  236. switch-on, switch-off sequence for preamp/amp
  237. Found Meixing Amp schematic, sorta, would like some feedback
  238. Tube Voltage Regulator Flicker...
  239. Projects...How does one decide ?
  240. Best 6550's for the money....
  241. SMPS and tubes
  242. Looking for Eico 1030 manual/schematic
  243. 6AS7 OTL
  244. Gary Pimm's site down?
  245. 805 + 300b Amplifier Schematic
  246. Music Angel Amplifiers
  247. MM Phono stage (kit?) for tube newbie
  248. Russian tube dealer?
  249. STA1 + amp vs K-12M
  250. cheap ebay KT88 amp

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