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  1. Employment offered; breadboarding a Tube Monoblock
  2. Need help: Looking for ECF80 preamp schematic
  3. a 5AR4 after a diode bridge? what is the purpose?
  4. 807 & Pe 06/40n
  5. Board layout design
  6. 12AX7, 12AU7 Substitution
  7. 200,000 Tubes for sale in Michigan
  8. Ground scheme
  9. Help on 6L6GC Triode PP..working points..
  10. A neat trick?
  11. Setup & Implementation of G Pimm's Self-Bias CCS
  12. Tube Preamp FM interference
  13. Parafeed 6EM7 with 2k load?
  14. Need Help on HEATHKIT W-5M Power Transformer
  15. Fully isolated oilbath transformer.
  16. small signal DHT or DHP like AVVT20/8?
  17. EL 84 Pentode Config.
  18. Amp Tubes
  19. Can I replace the 1M volume pot with a 100K one in my HK A300?
  20. what's a hum band?
  21. Tube phono pre-amp needed.
  22. U/L or triode mode on music angel amp
  23. Why do some people dislike ultralinear?
  24. Adaptive class A
  25. 6X4 Tube rectifier.
  26. AN Conquest Clone modification
  27. Beautiful tubes.
  28. Selectable EL34/6L6 Amp OT
  29. Simple circlotron amp
  30. 12AX7 how many is enough?
  31. samples of 300B in pse or pp
  32. power supply choke with a connection for AC ground?
  33. Heathkit A7E for guitar - preamp gain
  34. musical fidelity x10d schematic
  35. Pot Value
  36. Eico 666 (satan's choice) tube tester help.
  37. Finally built a subminiature guitar amp... now I need help!
  38. Minor crackling in new valves
  39. Matchless Lightning v Spitfire
  40. Aikido linestage Help Needed
  41. Scott 299A Schematic
  42. Q on PP & current mirrors
  43. Calculating PT headroom in PP class AB
  44. EL34 Failure
  45. Aikido Transformer recommendation
  46. No mains transformer B+ ?
  47. Help with horizontal mounting of 01-A and VR tubes
  48. twisted pair wiring on a tube amp
  49. Calculating SE Output Question
  50. Fixed-Bias Williamson EL34
  51. Bogen CHB-35 Preamp Mod
  52. resistors and sonic effects?
  53. tamura F-683 pole question
  54. EC52--Plate choke--300B/45/2a3/50/EL34 SE
  55. vtl deluxe 300 mb
  56. Is SD a Schottky Diode in this schematic?
  57. Maida regulator
  58. 572B vs 845 vs 211 SE
  59. Yet Another EL84 Amp
  60. Regulator for tube pre
  61. referencing heater supply ground to B+
  62. One Question for Hammond 1620 output transformer
  63. Bias adjustment on Dynaco ST70
  64. To SRPP or not?
  65. Ampeg SVT-VR or SVT-CL Schematics
  66. 811 vs 811A?
  67. Bogen integrated stereo amp
  68. Audionote japan ( Kondo) Ongaku..Can I ......... Clone to DIY!!!!!!!
  69. Broken 6L6WXT tube
  70. transformer questions
  71. Microphone With A Low Impedance Tube
  72. 6EM7 Push-Pull
  73. polarity of Xicon electrolytics
  74. SE EL84 question
  75. Slightly Different guitar amp question
  76. ST-70 Power Transformer Info
  77. My new quad SED EL34 arrived
  78. isolation transformer for 50C5 amp
  79. DSP and vacuum tubes (from Analog Devices)
  80. Asymmetrical P-P OPT Primary
  81. Gated beam discriminator "amplifier"
  82. PCB Mount Loctal Socket?
  83. "Zero bias"/ driving the grid positive
  84. Low Profile Power Transformer Help
  85. Lowering Gain on an Aikido Preamp
  86. HELP; DIY PP amp - it's phase splitter, or buy Chineese.
  87. Tube vs. SS CCS...
  88. Another "I need an amp recommendation" thread
  89. i am a new one here
  90. i am new ! can you help me
  91. Pentode CCS: Would somebody check my work?
  92. PSU for 12V DC heaters
  93. 50C5 Triode strapped?
  94. homemade faceplates
  95. Can I build this?
  96. Heptode audio preamp? ECH83
  97. E130L in Triode mode
  98. class AB2 who's using it for hifi?
  99. Obscure radio tube
  100. another mingda
  101. tube hum in Aikido
  102. equivalent input impedance
  103. 6DG6GT "Magic Amp"
  104. Solen Fast Cap vs ASC film/oils in PS
  105. Tektronix transformers
  106. *very* basic plate resistance Q
  107. Yaqin MC-5881A amplifier improvements
  108. Tube design software
  109. More wasted space
  110. Radio tube guitar preamp
  111. PC Mount Novar Socket Suppliers
  112. Planning my first project
  113. Power Transformer leakage
  114. current sensing in series with anode resistors
  115. Please recommend a 9-pin dual triode = 417A
  116. Dynaco Pas 2
  117. Anyone have accurate charts for a KT90?
  118. Calling all Phono Preamp gurus, I'm looking for some plans
  119. Measuring Unknown Transformers
  120. Swinging choke vs std. choke in PS
  121. scope tests on a Heathkit A7E
  122. tube hum in a 6SN7 Aikido - is this weird?
  123. ECC807 preamp
  124. Ode to the 8416
  125. CCS 10M45 in Cathode of CF Driver
  126. Audionics help
  127. what 8-pin tubes would you suggest for an aikido preamp?
  128. KT88 tubes
  129. Any one tried these transformers?
  130. Williamson 6L6 Monoblocks (Finally)
  131. Master Volume preamp.. simple?
  132. ~2 watt SET decision
  133. retube order
  134. MC Riaa preamp help/opinions please
  135. WTB Fairchild 260 transformers
  136. Peter Millet amp
  137. 1946 Gibson BR-4 Amplifier tube question
  138. Power Regulator PCB's and Aikido parts
  139. A heater wiring DOH! moment??
  140. hum in fisher 800c phono section
  141. Aikido warm-up hum, resistor types, etc.
  142. Any of these tubes good for amps?
  143. Mini 98 El84 PP amplifier
  144. 1X6S33S=6X6S19P which one gives less impedance?
  145. schematic for 12.6 VDC heaters
  146. PP transformer for SE?? Help!
  147. 7-pin miniature tubes for audio?
  148. Tube Preamp as a Guitar Effect
  149. 6L6GT vs. EL34/6CA7 and WHY?
  150. Tube rectifier help
  151. Fender push pull amp... using one tube only.. is it dangerous?
  152. KT88 Lifetime estimation
  153. Adjustable distributed load discussion
  154. Thyratron voltage regulation
  155. switch-on, switch-off sequence for preamp/amp
  156. Found Meixing Amp schematic, sorta, would like some feedback
  157. Tube Voltage Regulator Flicker...
  158. Projects...How does one decide ?
  159. Best 6550's for the money....
  160. SMPS and tubes
  161. Looking for Eico 1030 manual/schematic
  162. 6AS7 OTL
  163. Gary Pimm's site down?
  164. 805 + 300b Amplifier Schematic
  165. Music Angel Amplifiers
  166. MM Phono stage (kit?) for tube newbie
  167. Russian tube dealer?
  168. STA1 + amp vs K-12M
  169. cheap ebay KT88 amp
  170. Tubes at low +B...
  171. Converting a yarland amp to drive headphones
  172. Starting a component system
  173. Really elementary question about caps.
  174. Tube newbie with Scott 299B
  175. 12AV7- 5965 Vs 12AY7
  176. PX25 tubes in a 300B Amp?
  177. help with a choke.
  178. 60Hz buzzing
  179. nuvistor bias with 18V ?
  180. ground bus for inputs on preamp - what's best?
  181. Voltage drop of various regulators in dc regulated power supply for preamp
  182. Does anyone recognise this tube amp?
  183. Entry level tube amp
  184. Anyone build/use 6BG6G?
  185. KT-77 Blues
  186. Dynaco Information MArk II Required
  187. tube test numbers - what do they mean?
  188. foolish notion, 12GN7 model?
  189. First-Timer Doubts: K-12 or Gainclone?
  190. Eico ST70 Rebuild / Upgrade
  191. More power in this
  192. Help modifiying schematic
  193. Simple Variable Tube Power Supply
  194. bias voltage vs bias current
  195. All the Bias options
  196. 6N6G looks like a great audio tube. . .
  197. Variable bias
  198. Tube amp on a budget
  199. tung sol
  200. How cool is tube deep cooling?
  201. Modified Fender Deluxe - Constant Current Phase Splitter
  202. 12B4 Equivalents?
  203. KT88 pp triode control grid resistor????
  204. Duncan Amps spice model docs...
  205. Hum in Legend amp
  206. Which do you prefer - EL84 UL PP or EL34 Triode PP - and why?
  207. Mullard high speed tester
  208. Joining two NCT transformers
  209. Stereo Driver PCB for PP Amp (EL34/KT88)?
  210. Tube Integrated Amp Kit Project
  211. 866A transient over-current capability?
  212. 6HS8 tubes for volume control
  213. cathode for plate ccs ?
  214. Broken Tube pin guides
  215. I need a 120v ct transformer... Where to look?
  216. Best production EL34?
  217. 6DJ8 or 12AT7
  218. 6L6 Single Ended Flea Amp?
  219. Se Tranny used on Parafeed!!!
  220. Hammond 270 series power transformer?
  221. 6aq5.......6v6.......
  222. 6N1 substitution with 6922
  223. driving 845 push-pull with a signal from a 300B SE stage
  224. Recommend a schematic for a Moving Coil head amp?
  225. Tube Buffer 6J1 / 5654 (6AK5)
  226. question about 6Av5ga tubes
  227. Toroidal SE transformers
  228. Calling MR. Tubelab! 6W6GT?
  229. Triode Trick
  230. SE 300B or PP KT88 amps?
  231. perhaps an INSANE query...
  232. Possible to estimate transformer specs?
  233. 9 pin replacement sockets
  234. Bench PSU
  235. Need help to make a correct 83 (merc.vapor.rect) SS replacement.
  236. Joke of the day
  237. $300 tube amp budget. Which Amp??
  238. Simple Linestage for 27 or 1H5?
  239. Foreplay III pre amp
  240. Fixing this 100TH
  241. I have some 5654
  242. Multisegment capacitor replacement help.
  243. Amplifer calculation
  244. Auto Bias?
  245. Se KT88 with Quad ESL
  246. Parts from Salvage
  247. power supply question.... too many Volts?
  248. Heathkit A7E Conversion to Guitar
  249. Now wouldn’t this make an awesome monoblock.
  250. Please,help me for schematics!!

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