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  1. Ground point for HF decoupling cap?
  2. Cancelling Harmonics
  3. Quiet Tube
  4. LM385 Adjustable voltage ref. diode as LED bias?
  5. Tubed Expression Pedal
  6. Any spice models around for AA5-esque battery tubes?
  7. Where to connect shielding
  8. Bogen K15 convert to guitar amp
  9. Help 805 As that the friend makes to straighten even gallbladder machine
  10. studiogear of the beatles
  11. 6AK5 Triode Curves
  12. twisted pair signal, source selector and ground buss???
  13. Tiny Amplifiers
  14. A newly aquired Hum
  15. many jan tubes
  16. is this the correct way of adding a volume control?
  17. Basic DIY Valve Phono Stage
  18. 5879 Experience?
  19. personal jobs
  20. Wanted Triode strapped curves for pentode of ECL82.
  21. source selector / volume hum in Aikido
  22. DHTs and Cathode Bias
  23. Best SET driver stage with lots of B+?
  24. Tube Library Pspice error
  25. referencing DC heater to B+
  26. Double floating Circlotron
  27. Supply Capacitors ?
  28. Sakuma style Tango project
  29. MC10L is good or not
  30. Eico HF-20 & Claus Byrith PS voltage & power draw
  31. Voltage Regulator Tubes
  32. EL34 triode-connected grounding-grid curves?
  33. Pls help me understand AR SP6 circuit
  34. good begginer project (ax84 v.s. boozhound)
  35. I'm looking for 417a/5842 Preamp Schematic without any Transformer, any suggestion ?
  36. Trouble in a new DIY amp.
  37. Suitable Transformers
  38. PT winding calculations HELP
  39. How to measure frequency response with a PC?
  40. Pspice Tube Generation Software
  41. Tektron tube amplifier Italy made
  42. What to do with 2x Stancor A3830?
  43. REQ: Schematics and tweaking tips
  44. Jadis Da 60 & 80
  45. 6L6 for a beginner, plus ECL86/6GW8
  46. Leak Stereo 20 clone? possibly with 6V6?
  47. Any comment on Vacuum State dpa300b??
  48. Radiotron Designers Handbook
  49. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  50. 12B4 eqivalent : sonics-wise ?
  51. Any Eimac Scematics?
  52. What's a 6SL7 Good For?
  53. Where Can Buy 6c41
  54. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  55. use a 45 to drive a 45 ?
  56. Regulated heater reference
  57. Heater Elevation, how high?
  58. 6201 alternative
  59. 4V Tentlabs filament supply
  60. Difference between stereo & 2 monoblocks
  61. Parallel operation of triodes.
  62. input tubes using 6922?
  63. Looking for choices - affordable PP OPTs
  64. removing HF damping pF caps for guitar
  65. HH Scott Transformer #s
  66. Tips for rebuilding this amp?
  67. Need advice - what can I build with this power transformer?
  68. Source for high voltage electro caps
  69. differences between K-12M and K-12G kits?
  70. 12B4 Line Stage with Fixed Bias?
  71. split push-pull output stage
  72. any thoughts/explanation on the power supply for this circuit?
  73. Where to begin on a PP?
  74. ProAc Tablette 50 Speakers
  75. Recognizing wiped out ECC's 81,82,83
  76. So tell me.... how did YOU get into tubes??
  77. 7189 or 7819 el84 tube?
  78. Question about Star Grounding
  79. Employment offered; breadboarding a Tube Monoblock
  80. Need help: Looking for ECF80 preamp schematic
  81. a 5AR4 after a diode bridge? what is the purpose?
  82. 807 & Pe 06/40n
  83. Board layout design
  84. 12AX7, 12AU7 Substitution
  85. 200,000 Tubes for sale in Michigan
  86. Ground scheme
  87. Help on 6L6GC Triode PP..working points..
  88. A neat trick?
  89. Setup & Implementation of G Pimm's Self-Bias CCS
  90. Tube Preamp FM interference
  91. Parafeed 6EM7 with 2k load?
  92. Need Help on HEATHKIT W-5M Power Transformer
  93. Fully isolated oilbath transformer.
  94. small signal DHT or DHP like AVVT20/8?
  95. EL 84 Pentode Config.
  96. Amp Tubes
  97. Can I replace the 1M volume pot with a 100K one in my HK A300?
  98. what's a hum band?
  99. Tube phono pre-amp needed.
  100. U/L or triode mode on music angel amp
  101. Why do some people dislike ultralinear?
  102. Adaptive class A
  103. 6X4 Tube rectifier.
  104. AN Conquest Clone modification
  105. Beautiful tubes.
  106. Selectable EL34/6L6 Amp OT
  107. Simple circlotron amp
  108. 12AX7 how many is enough?
  109. samples of 300B in pse or pp
  110. power supply choke with a connection for AC ground?
  111. Heathkit A7E for guitar - preamp gain
  112. musical fidelity x10d schematic
  113. Pot Value
  114. Eico 666 (satan's choice) tube tester help.
  115. Finally built a subminiature guitar amp... now I need help!
  116. Minor crackling in new valves
  117. Matchless Lightning v Spitfire
  118. Aikido linestage Help Needed
  119. Scott 299A Schematic
  120. Q on PP & current mirrors
  121. Calculating PT headroom in PP class AB
  122. EL34 Failure
  123. Aikido Transformer recommendation
  124. No mains transformer B+ ?
  125. Help with horizontal mounting of 01-A and VR tubes
  126. twisted pair wiring on a tube amp
  127. Calculating SE Output Question
  128. Fixed-Bias Williamson EL34
  129. Bogen CHB-35 Preamp Mod
  130. resistors and sonic effects?
  131. tamura F-683 pole question
  132. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  133. vtl deluxe 300 mb
  134. Is SD a Schottky Diode in this schematic?
  135. Maida regulator
  136. 572B vs 845 vs 211 SE
  137. Yet Another EL84 Amp
  138. Regulator for tube pre
  139. referencing heater supply ground to B+
  140. One Question for Hammond 1620 output transformer
  141. Bias adjustment on Dynaco ST70
  142. To SRPP or not?
  143. Ampeg SVT-VR or SVT-CL Schematics
  144. 811 vs 811A?
  145. Bogen integrated stereo amp
  146. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  147. Broken 6L6WXT tube
  148. transformer questions
  149. Microphone With A Low Impedance Tube
  150. 6EM7 Push-Pull
  151. polarity of Xicon electrolytics
  152. SE EL84 question
  153. Slightly Different guitar amp question
  154. ST-70 Power Transformer Info
  155. My new quad SED EL34 arrived
  156. isolation transformer for 50C5 amp
  157. DSP and vacuum tubes (from Analog Devices)
  158. Asymmetrical P-P OPT Primary
  159. Gated beam discriminator "amplifier"
  160. PCB Mount Loctal Socket?
  161. "Zero bias"/ driving the grid positive
  162. Low Profile Power Transformer Help
  163. Lowering Gain on an Aikido Preamp
  164. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  165. Tube vs. SS CCS...
  166. Another "I need an amp recommendation" thread
  167. i am a new one here
  168. i am new ! can you help me
  169. Pentode CCS: Would somebody check my work?
  170. PSU for 12V DC heaters
  171. 50C5 Triode strapped?
  172. homemade faceplates
  173. Can I build this?
  174. Heptode audio preamp? ECH83
  175. E130L in Triode mode
  176. class AB2 who's using it for hifi?
  177. Obscure radio tube
  178. another mingda
  179. tube hum in Aikido
  180. equivalent input impedance
  181. 6DG6GT "Magic Amp"
  182. Solen Fast Cap vs ASC film/oils in PS
  183. Tektronix transformers
  184. *very* basic plate resistance Q
  185. Yaqin MC-5881A amplifier improvements
  186. Tube design software
  187. More wasted space
  188. Radio tube guitar preamp
  189. PC Mount Novar Socket Suppliers
  190. Planning my first project
  191. Power Transformer leakage
  192. current sensing in series with anode resistors
  193. Please recommend a 9-pin dual triode = 417A
  194. Dynaco Pas 2
  195. Anyone have accurate charts for a KT90?
  196. Calling all Phono Preamp gurus, I'm looking for some plans
  197. Measuring Unknown Transformers
  198. Swinging choke vs std. choke in PS
  199. scope tests on a Heathkit A7E
  200. tube hum in a 6SN7 Aikido - is this weird?
  201. ECC807 preamp
  202. Ode to the 8416
  203. CCS 10M45 in Cathode of CF Driver
  204. Audionics help
  205. what 8-pin tubes would you suggest for an aikido preamp?
  206. KT88 tubes
  207. Any one tried these transformers?
  208. Williamson 6L6 Monoblocks (Finally)
  209. Master Volume preamp.. simple?
  210. ~2 watt SET decision
  211. retube order
  212. MC Riaa preamp help/opinions please
  213. WTB Fairchild 260 transformers
  214. Peter Millet amp
  215. 1946 Gibson BR-4 Amplifier tube question
  216. Power Regulator PCB's and Aikido parts
  217. A heater wiring DOH! moment??
  218. hum in fisher 800c phono section
  219. Aikido warm-up hum, resistor types, etc.
  220. Any of these tubes good for amps?
  221. Mini 98 El84 PP amplifier
  222. 1X6S33S=6X6S19P which one gives less impedance?
  223. schematic for 12.6 VDC heaters
  224. PP transformer for SE?? Help!
  225. 7-pin miniature tubes for audio?
  226. Tube Preamp as a Guitar Effect
  227. 6L6GT vs. EL34/6CA7 and WHY?
  228. Tube rectifier help
  229. Fender push pull amp... using one tube only.. is it dangerous?
  230. KT88 Lifetime estimation
  231. Adjustable distributed load discussion
  232. Thyratron voltage regulation
  233. switch-on, switch-off sequence for preamp/amp
  234. Found Meixing Amp schematic, sorta, would like some feedback
  235. Tube Voltage Regulator Flicker...
  236. Projects...How does one decide ?
  237. Best 6550's for the money....
  238. SMPS and tubes
  239. Looking for Eico 1030 manual/schematic
  240. 6AS7 OTL
  241. Gary Pimm's site down?
  242. 805 + 300b Amplifier Schematic
  243. Music Angel Amplifiers
  244. MM Phono stage (kit?) for tube newbie
  245. Russian tube dealer?
  246. STA1 + amp vs K-12M
  247. cheap ebay KT88 amp
  248. Tubes at low +B...
  249. Converting a yarland amp to drive headphones
  250. Starting a component system

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