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  1. REQ: Schematics and tweaking tips
  2. Jadis Da 60 & 80
  3. 6L6 for a beginner, plus ECL86/6GW8
  4. Leak Stereo 20 clone? possibly with 6V6?
  5. Any comment on Vacuum State dpa300b??
  6. Radiotron Designers Handbook
  7. Kofi Annan in: "Buggin' the 'S' Outta Me!"
  8. 12B4 eqivalent : sonics-wise ?
  9. Any Eimac Scematics?
  10. What's a 6SL7 Good For?
  11. Where Can Buy 6c41
  12. would twisted pair from a network cable be suitable as hook-up wires inside an amp?
  13. use a 45 to drive a 45 ?
  14. Regulated heater reference
  15. Heater Elevation, how high?
  16. 6201 alternative
  17. 4V Tentlabs filament supply
  18. Difference between stereo & 2 monoblocks
  19. Parallel operation of triodes.
  20. input tubes using 6922?
  21. Looking for choices - affordable PP OPTs
  22. removing HF damping pF caps for guitar
  23. HH Scott Transformer #s
  24. Tips for rebuilding this amp?
  25. Need advice - what can I build with this power transformer?
  26. Source for high voltage electro caps
  27. differences between K-12M and K-12G kits?
  28. 12B4 Line Stage with Fixed Bias?
  29. split push-pull output stage
  30. any thoughts/explanation on the power supply for this circuit?
  31. Where to begin on a PP?
  32. ProAc Tablette 50 Speakers
  33. Recognizing wiped out ECC's 81,82,83
  34. So tell me.... how did YOU get into tubes??
  35. 7189 or 7819 el84 tube?
  36. Question about Star Grounding
  37. Employment offered; breadboarding a Tube Monoblock
  38. Need help: Looking for ECF80 preamp schematic
  39. a 5AR4 after a diode bridge? what is the purpose?
  40. 807 & Pe 06/40n
  41. Board layout design
  42. 12AX7, 12AU7 Substitution
  43. 200,000 Tubes for sale in Michigan
  44. Ground scheme
  45. Help on 6L6GC Triode PP..working points..
  46. A neat trick?
  47. Setup & Implementation of G Pimm's Self-Bias CCS
  48. Tube Preamp FM interference
  49. Parafeed 6EM7 with 2k load?
  50. Need Help on HEATHKIT W-5M Power Transformer
  51. Fully isolated oilbath transformer.
  52. small signal DHT or DHP like AVVT20/8?
  53. EL 84 Pentode Config.
  54. Amp Tubes
  55. Can I replace the 1M volume pot with a 100K one in my HK A300?
  56. what's a hum band?
  57. Tube phono pre-amp needed.
  58. U/L or triode mode on music angel amp
  59. Why do some people dislike ultralinear?
  60. Adaptive class A
  61. 6X4 Tube rectifier.
  62. AN Conquest Clone modification
  63. Beautiful tubes.
  64. Selectable EL34/6L6 Amp OT
  65. Simple circlotron amp
  66. 12AX7 how many is enough?
  67. samples of 300B in pse or pp
  68. power supply choke with a connection for AC ground?
  69. Heathkit A7E for guitar - preamp gain
  70. musical fidelity x10d schematic
  71. Pot Value
  72. Eico 666 (satan's choice) tube tester help.
  73. Finally built a subminiature guitar amp... now I need help!
  74. Minor crackling in new valves
  75. Matchless Lightning v Spitfire
  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. Ampeg SVT-VR or SVT-CL Schematics
  102. 811 vs 811A?
  103. Bogen integrated stereo amp
  104. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  105. Broken 6L6WXT tube
  106. transformer questions
  107. Microphone With A Low Impedance Tube
  108. 6EM7 Push-Pull
  109. polarity of Xicon electrolytics
  110. SE EL84 question
  111. Slightly Different guitar amp question
  112. ST-70 Power Transformer Info
  113. My new quad SED EL34 arrived
  114. isolation transformer for 50C5 amp
  115. DSP and vacuum tubes (from Analog Devices)
  116. Asymmetrical P-P OPT Primary
  117. Gated beam discriminator "amplifier"
  118. PCB Mount Loctal Socket?
  119. "Zero bias"/ driving the grid positive
  120. Low Profile Power Transformer Help
  121. Lowering Gain on an Aikido Preamp
  122. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  123. Tube vs. SS CCS...
  124. Another "I need an amp recommendation" thread
  125. i am a new one here
  126. i am new ! can you help me
  127. Pentode CCS: Would somebody check my work?
  128. PSU for 12V DC heaters
  129. 50C5 Triode strapped?
  130. homemade faceplates
  131. Can I build this?
  132. Heptode audio preamp? ECH83
  133. E130L in Triode mode
  134. class AB2 who's using it for hifi?
  135. Obscure radio tube
  136. another mingda
  137. tube hum in Aikido
  138. equivalent input impedance
  139. 6DG6GT "Magic Amp"
  140. Solen Fast Cap vs ASC film/oils in PS
  141. Tektronix transformers
  142. *very* basic plate resistance Q
  143. Yaqin MC-5881A amplifier improvements
  144. Tube design software
  145. More wasted space
  146. Radio tube guitar preamp
  147. PC Mount Novar Socket Suppliers
  148. Planning my first project
  149. Power Transformer leakage
  150. current sensing in series with anode resistors
  151. Please recommend a 9-pin dual triode = 417A
  152. Dynaco Pas 2
  153. Anyone have accurate charts for a KT90?
  154. Calling all Phono Preamp gurus, I'm looking for some plans
  155. Measuring Unknown Transformers
  156. Swinging choke vs std. choke in PS
  157. scope tests on a Heathkit A7E
  158. tube hum in a 6SN7 Aikido - is this weird?
  159. ECC807 preamp
  160. Ode to the 8416
  161. CCS 10M45 in Cathode of CF Driver
  162. Audionics help
  163. what 8-pin tubes would you suggest for an aikido preamp?
  164. KT88 tubes
  165. Any one tried these transformers?
  166. Williamson 6L6 Monoblocks (Finally)
  167. Master Volume preamp.. simple?
  168. ~2 watt SET decision
  169. retube order
  170. MC Riaa preamp help/opinions please
  171. WTB Fairchild 260 transformers
  172. Peter Millet amp
  173. 1946 Gibson BR-4 Amplifier tube question
  174. Power Regulator PCB's and Aikido parts
  175. A heater wiring DOH! moment??
  176. hum in fisher 800c phono section
  177. Aikido warm-up hum, resistor types, etc.
  178. Any of these tubes good for amps?
  179. Mini 98 El84 PP amplifier
  180. 1X6S33S=6X6S19P which one gives less impedance?
  181. schematic for 12.6 VDC heaters
  182. PP transformer for SE?? Help!
  183. 7-pin miniature tubes for audio?
  184. Tube Preamp as a Guitar Effect
  185. 6L6GT vs. EL34/6CA7 and WHY?
  186. Tube rectifier help
  187. Fender push pull amp... using one tube only.. is it dangerous?
  188. KT88 Lifetime estimation
  189. Adjustable distributed load discussion
  190. Thyratron voltage regulation
  191. switch-on, switch-off sequence for preamp/amp
  192. Found Meixing Amp schematic, sorta, would like some feedback
  193. Tube Voltage Regulator Flicker...
  194. Projects...How does one decide ?
  195. Best 6550's for the money....
  196. SMPS and tubes
  197. Looking for Eico 1030 manual/schematic
  198. 6AS7 OTL
  199. Gary Pimm's site down?
  200. 805 + 300b Amplifier Schematic
  201. Music Angel Amplifiers
  202. MM Phono stage (kit?) for tube newbie
  203. Russian tube dealer?
  204. STA1 + amp vs K-12M
  205. cheap ebay KT88 amp
  206. Tubes at low +B...
  207. Converting a yarland amp to drive headphones
  208. Starting a component system
  209. Really elementary question about caps.
  210. Tube newbie with Scott 299B
  211. 12AV7- 5965 Vs 12AY7
  212. PX25 tubes in a 300B Amp?
  213. help with a choke.
  214. 60Hz buzzing
  215. nuvistor bias with 18V ?
  216. ground bus for inputs on preamp - what's best?
  217. Voltage drop of various regulators in dc regulated power supply for preamp
  218. Does anyone recognise this tube amp?
  219. Entry level tube amp
  220. Anyone build/use 6BG6G?
  221. KT-77 Blues
  222. Dynaco Information MArk II Required
  223. tube test numbers - what do they mean?
  224. foolish notion, 12GN7 model?
  225. First-Timer Doubts: K-12 or Gainclone?
  226. Eico ST70 Rebuild / Upgrade
  227. More power in this
  228. Help modifiying schematic
  229. Simple Variable Tube Power Supply
  230. bias voltage vs bias current
  231. All the Bias options
  232. 6N6G looks like a great audio tube. . .
  233. Variable bias
  234. Tube amp on a budget
  235. tung sol
  236. How cool is tube deep cooling?
  237. Modified Fender Deluxe - Constant Current Phase Splitter
  238. 12B4 Equivalents?
  239. KT88 pp triode control grid resistor????
  240. Duncan Amps spice model docs...
  241. Hum in Legend amp
  242. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  243. Mullard high speed tester
  244. Joining two NCT transformers
  245. Stereo Driver PCB for PP Amp (EL34/KT88)?
  246. Tube Integrated Amp Kit Project
  247. 866A transient over-current capability?
  248. 6HS8 tubes for volume control
  249. cathode for plate ccs ?
  250. Broken Tube pin guides

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