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  1. Tube amp for newbye
  2. 3C24SE amp...
  3. Meixing MingDa MC767-RD
  4. confusing transformer connections
  5. Have to mod K-502 to 4Ohms from 8
  6. SOund of 3B28 vs. 866A
  7. S3E Vacuum Tube
  8. Tube audio & "3 dimensionality"
  9. Darling monoblocks
  10. Testing 350B with B & K 747A
  11. Interstage transformer for balanced amp question
  12. Filament transformer questions
  13. dBm or dBV Audio Voltmeter
  14. VTL MB250 Signature monoblock Manual..
  15. Choke phase spliter
  16. Output transformer DC resistance..
  17. Chassis layout?
  18. Jolida schematic questions
  19. Tube Phono preamp kit?
  20. Does size really matter - SE Output
  21. 437A testing
  22. Tube Amp reverb noise, no vibrato intensity, unknown model. Help please
  23. What to do with a 5k output transfomer?
  24. adapter?
  25. Studer 52
  26. Safety ground question
  27. Old PS questions (EL34 replacement), and any Aus people know BWD?
  28. Darling 1626 amp
  29. Blackheart 5 watt
  30. What is this tube amp
  31. Extry, Extry, Blind Squirrel Finds Nut -sequence
  32. Why is distortion harmonic?
  33. Source for OPT
  34. EL34 to RL12P35 converting
  35. calculating total current draw
  36. Allied Radio (Knight) KA-55 schematic
  37. 6F6G Amplifier
  38. good book/article about using oscilloscopes?
  39. how to attach photos
  40. Is 450V the max of triode strapped 6l6gc
  41. Separate power supply - Umbilical Cord
  42. tube amp being weird -- any ideas
  43. need to discharge psu safely
  44. Jadis DA7/defy power amplifier mods
  45. 5.3v on 6SN7 filament?
  46. The Valve Wizard
  47. Mercury vapor rectifier tube question
  48. An Indiana Yankee in Putin's court.
  49. Switching over to a fixed bias
  50. Dynamic load line analysis using music and speaker load
  51. Capacitance in PSU
  52. preamp line ctt
  53. Genalex KT-88 reissue
  54. Combine EF80 with EL84
  55. 2A3 maximum plate voltage
  56. Amplifier Response Stability & All That.
  57. 100k linear pots, any idea?
  58. 6550, 6L6, or 6V6??
  59. grid-stopper resistor
  60. cathode bypass caps suggestions please for newbie
  61. Need Schematic-H&K B.A.T.T.
  62. 6EJ7 phono preamp?
  63. Impressions of the Ella, a pp EL34
  64. 30L15 / PCC805 - What can I use them for?
  65. Ultra Cheap transformers?
  66. Push-pull output impedance
  67. Tube amp cost
  68. 830b
  69. Leak Tl/12+
  70. Toroid Trafo as choke
  71. in search of a 3c33 dual triode.....
  72. Question about MiniBlok II Schematic
  73. Wavebourn Alligator amplifier
  74. Best Tube Testers?
  75. Rusky version EF86
  76. Melos SHA Gold Issue
  77. Tubelab Simple SE & Edcor
  78. Erratic tube activity
  79. Bogen Front End
  80. Maybe a Ruskie
  81. Another kind of hybrid
  82. Output impedance
  83. GU29 Amp. Schematic - Audioromy or similar
  84. Power On Indicator Light
  85. Newbie Aikido power supply question
  86. Se output transformer question
  87. Aikido hum
  88. Output transformer replacement... Worth it?
  89. Almarro A205A schematic
  90. Valves World question
  91. diodes before plate load
  92. power tubes..newbie question.
  93. Need Help 12BH7 Tube test.
  94. Tube Virgin
  95. Chassis layout help
  96. Maybe this is why 300b's dont last as long
  97. High-voltage bench power supply
  98. Ebay Tube amp buy disaster
  99. HK cheap SE OTPs...hmmm
  100. Modded ST70 Done
  101. bad buzz in an EL34 amp
  102. Another radio->Gtr amp mod question
  103. yaoin
  104. What is the safest method to plot characteristic curves without ruining the tubes
  105. Screen grid zeners; which?
  106. Another one I don't get
  107. 6BG6GA adapter instructions needed
  108. got an EC8020
  109. Identifying these Valvos.
  110. Converting tube guitar amp to Hi-Fi amp
  111. 21kW audio power amp?
  112. Quicksilver conversion
  113. DC PSU for both 6.3vdc and 5vdc from one 6.3vac transformer?
  114. Hammond Transformers in Montreal/Canada
  115. Can't find data for 8624
  116. Any advice on modifying a 2A3 SET amp to parafeed?
  117. Output impedance for non published PP configuration
  118. Grid stopper resistor required (KT66)?
  119. Ask Jan First OPTs
  120. For what are high mu triodes still useful?
  121. CCa "low noise"?
  122. Upgrading my Audio Research VT 130 SE Tube amp
  123. 100ma FSD voltmeter
  124. Conqueror schematic
  125. Bassman 135 OT
  126. Ground reference
  127. Overdriven Capacitor?
  128. Tone Controls?
  129. My first "from scratch" design, SE KT88..........
  130. OPTs of questionable utility
  131. 6336 as a Rectifier
  132. tube power supply
  133. Anyone read Russian?
  134. PSU - dropping resistors?
  135. pre-amp design, just curious about your thoughts here.
  136. Using isolation transformer as a PSU transformer???
  137. KT66 loosing its getter
  138. Mullard schematic?
  139. Mikale Abdellah SE KT88 B+ voltage?
  140. Layout software
  141. Does anyone have any schematics for a parafeed SET amp?
  142. music angel kt88
  143. CB radio
  144. The end of the 300b Dream?
  145. Voltage divider to reduce 6v dc to 2vdc
  146. oil injected rca cables?
  147. Modification.....
  148. CHOKY'S EC8010 preamp
  149. Using a Grid Choke On the 2A3 when the input/driver is a Pentode?
  150. tube checker
  151. 300B tube going dead after a few months
  152. KT88 se build NO GAIN please help
  153. mengyue mini valve amplifier
  154. Preamp suggest, please.
  155. Problem: Severe power transformer and choke vibration
  156. Amp Hack schematic questions
  157. This circuit ok?
  158. Tube ID anyone?
  159. Posted new books and data
  160. The sound of a failing tube rectifier?
  161. Proyect with PL36 and N2P (Russian ECC83)
  162. 300b LTspice model with grid current?
  163. Tri-amp using 2a3 SETs
  164. TentLabs Directly Heated Tubes Supply
  165. Bevois Valley Design Question
  166. Kofi Annan in: "Oscillation Blues"
  167. Common mode choke model
  168. UTC 20 Watt Amp - Any Experience?
  169. 6cz5s for EL84s
  170. The 120Hz Blues...
  171. Amplitrex AT-1000 Tube Tester
  172. audio amp. versus guitar amp
  173. Grounding points....
  174. Cap values for CLC filter
  175. Tube glows red hot, blows fuse
  176. Independent Bias Adjust for Each Tube?
  177. Mesa Boogie Maverick schematic any1?
  178. KT-88 from a book
  179. Modelling PSU?!
  180. DD amp for ESLs...
  181. Today's tube manufacters, best is?
  182. Advice on hum in phono stage
  183. Cathode follower & SRPP q
  184. FREDs on PSU
  185. Hybrid Shenanigans
  186. How hard is it to rewire my amp from 6av6/6cg7 to just 12ax7 types?
  187. 5AR4 heaters
  188. Bad Grounding,or Cheap Pot??
  189. Tube Construction Handbook
  190. WE 350: dry bass?
  191. What size capacitor I use for a 2A3 or 300B cathode bypass?
  192. Need helps with building poweramp stage
  193. Noah's Ark for electron tubes
  194. Fixed Bias suggestions
  195. OD3/OA3 voltage regulation design
  196. DHT filament heating with SMPS + CCS
  197. Using SE transformers in a PP circuit
  198. EDCOR Releases Line of Guitar OPT's
  199. Schematic: Audio Innovations, The first audio amplifier
  200. Restoring 1948 Gibson GA-30 guitar amp(tube)
  201. Now THIS is tube DIY to the extreme
  202. Dynaco mkIII A431 op's
  203. Alternative to Power Transformer
  204. Help with e180f and ixys current reg
  205. Building a "Hiwatt" tube Bass Amp
  206. help! no power, im lost
  207. Jerrycan amp (RH34SE)
  208. 12B4 Updates
  209. www.diykits.com.hk stepped volume control ... any good?
  210. Hammond L-100 conversion
  211. Anyone have the ASL model MGSI15 schematic ?
  212. Replacement for single-winding OPT?
  213. Buzz in new amp...
  214. 48V B+ linestage
  215. Line-Stage Opinion Question
  216. Audio applications of sweep tubes and ratings
  217. Differences in structure between parafeed ad gapped OPTs
  218. Take a look and let me know what you think
  219. Printed circuit board designing?
  220. SimpleSE - Switches, Wire, IEC, Jacks
  221. KT90 why this ?
  222. Break in
  223. Choke Design - Basic Questions
  224. Is this a good interstage transformer?
  225. Best tubes for bass?
  226. Tube amps & MP3's
  227. TRIO 15Hz Oscilloscope CS-1560A
  228. Newbie Needs Help Choosing A Kit
  229. I need a negative supply rail--but how?
  230. Strange Hum
  231. VR Tubes
  232. Understanding plate loads
  233. How do you know if your preamp has inverted the phase?
  234. Bogen J130 PA to guitar amp?
  235. 6P1 Equivalent
  236. EL34 and KT88??? 6550?
  237. one stage DHT amp
  238. 6V6 Output?
  239. Lineup of four: Help me choose?! OPT for SE
  240. 6DJ8 / 6922 tube?
  241. bias pilot sa 260
  242. Using vintage OPTs as PSU chokes ?
  243. crystal palace driver stage by morgan jones
  244. Why Are 12A*7 Tubes So Bad?
  245. Mikael's KT-88 question
  246. OPT for PSE 6c33c tubes
  247. 24v aikido distortion
  248. ED8000 SE or Parafeed?
  249. GZ33 Rectifier drop?
  250. counterpoint sa11

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