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  1. A neat trick?
  2. Setup & Implementation of G Pimm's Self-Bias CCS
  3. Tube Preamp FM interference
  4. Parafeed 6EM7 with 2k load?
  5. Need Help on HEATHKIT W-5M Power Transformer
  6. Fully isolated oilbath transformer.
  7. small signal DHT or DHP like AVVT20/8?
  8. EL 84 Pentode Config.
  9. Amp Tubes
  10. Can I replace the 1M volume pot with a 100K one in my HK A300?
  11. what's a hum band?
  12. Tube phono pre-amp needed.
  13. U/L or triode mode on music angel amp
  14. Why do some people dislike ultralinear?
  15. Adaptive class A
  16. 6X4 Tube rectifier.
  17. AN Conquest Clone modification
  18. Beautiful tubes.
  19. Selectable EL34/6L6 Amp OT
  20. Simple circlotron amp
  21. 12AX7 how many is enough?
  22. samples of 300B in pse or pp
  23. power supply choke with a connection for AC ground?
  24. Heathkit A7E for guitar - preamp gain
  25. musical fidelity x10d schematic
  26. Pot Value
  27. Eico 666 (satan's choice) tube tester help.
  28. Finally built a subminiature guitar amp... now I need help!
  29. Minor crackling in new valves
  30. Matchless Lightning v Spitfire
  31. Aikido linestage Help Needed
  32. Scott 299A Schematic
  33. Q on PP & current mirrors
  34. Calculating PT headroom in PP class AB
  35. EL34 Failure
  36. Aikido Transformer recommendation
  37. No mains transformer B+ ?
  38. Help with horizontal mounting of 01-A and VR tubes
  39. twisted pair wiring on a tube amp
  40. Calculating SE Output Question
  41. Fixed-Bias Williamson EL34
  42. Bogen CHB-35 Preamp Mod
  43. resistors and sonic effects?
  44. tamura F-683 pole question
  45. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  46. vtl deluxe 300 mb
  47. Is SD a Schottky Diode in this schematic?
  48. Maida regulator
  49. 572B vs 845 vs 211 SE
  50. Yet Another EL84 Amp
  51. Regulator for tube pre
  52. referencing heater supply ground to B+
  53. One Question for Hammond 1620 output transformer
  54. Bias adjustment on Dynaco ST70
  55. To SRPP or not?
  56. Ampeg SVT-VR or SVT-CL Schematics
  57. 811 vs 811A?
  58. Bogen integrated stereo amp
  59. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  60. Broken 6L6WXT tube
  61. transformer questions
  62. Microphone With A Low Impedance Tube
  63. 6EM7 Push-Pull
  64. polarity of Xicon electrolytics
  65. SE EL84 question
  66. Slightly Different guitar amp question
  67. ST-70 Power Transformer Info
  68. My new quad SED EL34 arrived
  69. isolation transformer for 50C5 amp
  70. DSP and vacuum tubes (from Analog Devices)
  71. Asymmetrical P-P OPT Primary
  72. Gated beam discriminator "amplifier"
  73. PCB Mount Loctal Socket?
  74. "Zero bias"/ driving the grid positive
  75. Low Profile Power Transformer Help
  76. Lowering Gain on an Aikido Preamp
  77. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  78. Tube vs. SS CCS...
  79. Another "I need an amp recommendation" thread
  80. i am a new one here
  81. i am new ! can you help me
  82. Pentode CCS: Would somebody check my work?
  83. PSU for 12V DC heaters
  84. 50C5 Triode strapped?
  85. homemade faceplates
  86. Can I build this?
  87. Heptode audio preamp? ECH83
  88. E130L in Triode mode
  89. class AB2 who's using it for hifi?
  90. Obscure radio tube
  91. another mingda
  92. tube hum in Aikido
  93. equivalent input impedance
  94. 6DG6GT "Magic Amp"
  95. Solen Fast Cap vs ASC film/oils in PS
  96. Tektronix transformers
  97. *very* basic plate resistance Q
  98. Yaqin MC-5881A amplifier improvements
  99. Tube design software
  100. More wasted space
  101. Radio tube guitar preamp
  102. PC Mount Novar Socket Suppliers
  103. Planning my first project
  104. Power Transformer leakage
  105. current sensing in series with anode resistors
  106. Please recommend a 9-pin dual triode = 417A
  107. Dynaco Pas 2
  108. Anyone have accurate charts for a KT90?
  109. Calling all Phono Preamp gurus, I'm looking for some plans
  110. Measuring Unknown Transformers
  111. Swinging choke vs std. choke in PS
  112. scope tests on a Heathkit A7E
  113. tube hum in a 6SN7 Aikido - is this weird?
  114. ECC807 preamp
  115. Ode to the 8416
  116. CCS 10M45 in Cathode of CF Driver
  117. Audionics help
  118. what 8-pin tubes would you suggest for an aikido preamp?
  119. KT88 tubes
  120. Any one tried these transformers?
  121. Williamson 6L6 Monoblocks (Finally)
  122. Master Volume preamp.. simple?
  123. ~2 watt SET decision
  124. retube order
  125. MC Riaa preamp help/opinions please
  126. WTB Fairchild 260 transformers
  127. Peter Millet amp
  128. 1946 Gibson BR-4 Amplifier tube question
  129. Power Regulator PCB's and Aikido parts
  130. A heater wiring DOH! moment??
  131. hum in fisher 800c phono section
  132. Aikido warm-up hum, resistor types, etc.
  133. Any of these tubes good for amps?
  134. Mini 98 El84 PP amplifier
  135. 1X6S33S=6X6S19P which one gives less impedance?
  136. schematic for 12.6 VDC heaters
  137. PP transformer for SE?? Help!
  138. 7-pin miniature tubes for audio?
  139. Tube Preamp as a Guitar Effect
  140. 6L6GT vs. EL34/6CA7 and WHY?
  141. Tube rectifier help
  142. Fender push pull amp... using one tube only.. is it dangerous?
  143. KT88 Lifetime estimation
  144. Adjustable distributed load discussion
  145. Thyratron voltage regulation
  146. switch-on, switch-off sequence for preamp/amp
  147. Found Meixing Amp schematic, sorta, would like some feedback
  148. Tube Voltage Regulator Flicker...
  149. Projects...How does one decide ?
  150. Best 6550's for the money....
  151. SMPS and tubes
  152. Looking for Eico 1030 manual/schematic
  153. 6AS7 OTL
  154. Gary Pimm's site down?
  155. 805 + 300b Amplifier Schematic
  156. Music Angel Amplifiers
  157. MM Phono stage (kit?) for tube newbie
  158. Russian tube dealer?
  159. STA1 + amp vs K-12M
  160. cheap ebay KT88 amp
  161. Tubes at low +B...
  162. Converting a yarland amp to drive headphones
  163. Starting a component system
  164. Really elementary question about caps.
  165. Tube newbie with Scott 299B
  166. 12AV7- 5965 Vs 12AY7
  167. PX25 tubes in a 300B Amp?
  168. help with a choke.
  169. 60Hz buzzing
  170. nuvistor bias with 18V ?
  171. ground bus for inputs on preamp - what's best?
  172. Voltage drop of various regulators in dc regulated power supply for preamp
  173. Does anyone recognise this tube amp?
  174. Entry level tube amp
  175. Anyone build/use 6BG6G?
  176. KT-77 Blues
  177. Dynaco Information MArk II Required
  178. tube test numbers - what do they mean?
  179. foolish notion, 12GN7 model?
  180. First-Timer Doubts: K-12 or Gainclone?
  181. Eico ST70 Rebuild / Upgrade
  182. More power in this
  183. Help modifiying schematic
  184. Simple Variable Tube Power Supply
  185. bias voltage vs bias current
  186. All the Bias options
  187. 6N6G looks like a great audio tube. . .
  188. Variable bias
  189. Tube amp on a budget
  190. tung sol
  191. How cool is tube deep cooling?
  192. Modified Fender Deluxe - Constant Current Phase Splitter
  193. 12B4 Equivalents?
  194. KT88 pp triode control grid resistor????
  195. Duncan Amps spice model docs...
  196. Hum in Legend amp
  197. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  198. Mullard high speed tester
  199. Joining two NCT transformers
  200. Stereo Driver PCB for PP Amp (EL34/KT88)?
  201. Tube Integrated Amp Kit Project
  202. 866A transient over-current capability?
  203. 6HS8 tubes for volume control
  204. cathode for plate ccs ?
  205. Broken Tube pin guides
  206. I need a 120v ct transformer... Where to look?
  207. Best production EL34?
  208. 6DJ8 or 12AT7
  209. 6L6 Single Ended Flea Amp?
  210. Se Tranny used on Parafeed!!!
  211. Hammond 270 series power transformer?
  212. 6aq5.......6v6.......
  213. 6N1 substitution with 6922
  214. driving 845 push-pull with a signal from a 300B SE stage
  215. Recommend a schematic for a Moving Coil head amp?
  216. Tube Buffer 6J1 / 5654 (6AK5)
  217. question about 6Av5ga tubes
  218. Toroidal SE transformers
  219. Calling MR. Tubelab! 6W6GT?
  220. Triode Trick
  221. SE 300B or PP KT88 amps?
  222. perhaps an INSANE query...
  223. Possible to estimate transformer specs?
  224. 9 pin replacement sockets
  225. Bench PSU
  226. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  227. Joke of the day
  228. $300 tube amp budget. Which Amp??
  229. Simple Linestage for 27 or 1H5?
  230. Foreplay III pre amp
  231. Fixing this 100TH
  232. I have some 5654
  233. Multisegment capacitor replacement help.
  234. Amplifer calculation
  235. Auto Bias?
  236. Se KT88 with Quad ESL
  237. Parts from Salvage
  238. power supply question.... too many Volts?
  239. Heathkit A7E Conversion to Guitar
  240. Now wouldn’t this make an awesome monoblock.
  241. Please,help me for schematics!!
  242. Kofi Annan in: "Open for Suggestion"
  243. What connector for 300vDC DOMESTIC environment?
  244. looking for help in transformers.
  245. problems with 805 tubes
  246. Audio Research D-90
  247. Replacing a 12AU7 in a cathode-follower.
  248. Original Dynaco 70 circuit mods/upgrades?
  249. is there a power supply unit for prototyping?
  250. Power Supply Design and Blocking

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