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  1. Anyone know anything about Morreto amps?
  2. Determining Output Power
  3. Turn on static?
  4. Estimate power transformer current rate?
  5. Control grid Voltage / grid stoppers...
  6. Horizontal TV tubes used in amplifier?
  7. tube sterio preamp complete
  8. Cons for using instrumentation tube PS for project amp...
  9. Svetlanas site down?
  10. Calculations for new Power transformer
  11. Mullard CV4015 info?
  12. SMPS for tube amp?
  13. Pentode Push-Pull
  14. LL1660S Anomaly
  15. DIY Hybrid poweramp noise and hum problem
  16. tube questions
  17. Problems w/biasing a lC50
  18. Big Honkin Tele
  19. Tube DIY store
  20. Pronouced 300B amp Midrange
  21. Tube preamp with current mirror
  22. Transformer Coupling and Headphones? (Toob Noob)
  23. Who can explain the source of this Siemens 12AU7
  24. how does one tell when a tube is truely dead?
  25. A curious observation
  26. Help choosing capacitor value?
  27. Neon Power?
  28. The rectifier from hell, a little story.
  29. a directly heated monkey?
  30. 6l6gc SET, my first DIY
  31. SE Output Transformer Matching
  32. power tube biasing
  33. Jupiters: Tolerance: 26% over spec: o.k.?
  34. Help! 6DJ8 Tube Buffer Schematics
  35. Output Transformers for an EL84 Push-Pull Amp
  36. Advice regarding philips/mullard EL34
  37. 300b based monoblock plans
  38. need help for Marshall PCB
  39. Marshall schematic ?
  40. counterpoint Sa 5.1
  41. Help with bogen CH8
  42. where do you get those schematics / layouts?
  43. Spice 3f4 model of a low voltage direct heated signal level pentode
  44. ECC82
  45. Major diff between 12AX7 and 12AU7
  46. Voltage doubler question
  47. el34 instead of 6550
  48. Bogen CH8
  49. Ah Njoe Tjoeb 4000 problem
  50. my last project
  51. TIP50 voltage regulator
  52. Collets for 212 pins
  53. K-12M Enclosure + Upgrades. Finished!
  54. Will this work?
  55. Big tube - what is it?
  56. Help! no signal! Marshall JTM60
  57. PSU topology & regulator
  58. Dynaco from scratch
  59. 6HV5A Single Ended Amp
  60. Cheap but not too much !
  61. Quick Output Transformer Question
  62. Help with guitar tube amp mods
  63. strange thing with AMC 2030
  64. GE6072 replacement tube
  65. Counterpoint 5.1 preamp
  66. Tube library
  67. RIAA recording on CD
  68. Old SE transformer measuring?
  69. Speakers for tube amps...
  70. MF x10v3
  71. Free Tube Books.....
  72. A Transformer question
  73. 6v6 PP - No sound
  74. help with interstage needed
  75. Hum in Speakers
  76. Just another PP...
  77. Leak Stereo 20 questions
  78. 10M45 CCS, what am I doing wrong ?
  79. Various transformers
  80. tubes sound
  81. Power supply help!
  82. KR Tubes
  83. Bi-amp Between Tube, and SS
  84. 2 Tube questions,
  85. my biggest project ever , need lotsa help plz
  86. tube temperatures
  87. hh scott bias issues
  88. B+ required w/ ccs load
  89. Info re Soundtech powerone tube amp
  90. Verdier Regulated Power Supply
  91. 6DJ8/ECC88 mu-follower
  92. Tube Compressor
  93. Newbie PSU question
  94. Hickok Cardmatic tube tester cards
  95. Hashimoto SE Output Transformer
  96. Ripple and chokes
  97. Tubes driven by BJT's
  98. Red LED substitution questions
  99. Hytron big 71A
  100. Need some help for 6L6 amp
  101. 802 as an audio output tube
  102. Changing 6DJ8 SRPP stage gain
  103. Cooling In Cab / Minimum Vent Area?
  104. Tube voltage help
  105. MF XPre troubleshooting
  106. Giaime's Preamp Finished!!!
  107. Circuit and PCB Layout comments
  108. 4613 triode
  109. Help with inverter CCS+NFB
  110. Question about KT 88 integrated
  111. The Trials, and Tribulations of Bias
  112. Which components should be matched?
  113. Using PP output for SE?
  114. Tube Newbee Needing Guidance
  115. 12A/71A SET project
  116. 805 SE amplifier
  117. Playing with screen resistors
  118. Interpret this 12ax7 feedback loop
  119. Low voltage-drop CCS for LTP input stage?
  120. Tube Socket Mounting - rigid or floating
  121. SE-9 mod help please
  122. 2a3SE
  123. 20 Watt SE. I had found it.
  124. Ok to exceed Vg2 in triode? (Yes)
  125. Fender Adjustments
  126. Help needed in Bloomington IN
  127. % error for primary resistance
  128. Help Understanding Circuit (grounded grid I/V)
  129. Testing a 70.7v transformer
  130. thyratron?
  131. Tube frontend....
  132. Transformer and Choke Grounding?
  133. El509 Pse
  134. 6550 Safety Question
  135. Jadis Defy 7 : Manual
  136. Melos Ma-111b
  137. Old audio amp change
  138. Need 45 tubes
  139. Jadis Defy 7 : Manual ??
  140. Help for pre-amp and two single-ended finals
  141. Schematic needed:MFA Magus B
  142. Can I remove the input caps?
  143. 807 vs. 1624 tetrode ?
  144. how to make tube amp sound layback and mellow?
  145. Standard tube filament voltages and currents
  146. SE 20W. What tube?
  147. 5687 Linestage behaving odd...
  148. SMPS & tube pre-amp development board.
  149. Question about Melody KT88 amp
  150. Trafomatic Transformer
  151. Diode trick?
  152. Return of the vacuum tube sonic hologram generator
  153. 6V6 ->EL84 with 12AT7?
  154. design for 6336A OTL amp needed
  155. Aikido sound?
  156. Valve preamp
  157. GAS VR Tubes on B+
  158. Measuring Triode-Connected Pentode Curves
  159. 6L6, 12L6 not same tube!
  160. equivilent part numbers for 6K35HF
  161. Is this a start or run cap
  162. 6V6 PP under construction - pics
  163. Is this practical
  164. Idea for a 2 tube 6080 PP amp.
  165. pls tell where to buy core of transformer
  166. 300B amp PS optimization?
  167. Different value for .47uf coupling cap
  168. Old Olympic audio tube amp
  169. What Design to Use?
  170. KT90's anyone using'em ?
  171. What are they?
  172. Replace el34 with 6p3s
  173. Advice on 6V6 push pull Parallel
  174. squealing output transformer
  175. Melos Sha Gold
  176. Ways to Lower B+ in a Tube Rectifed PS
  177. Oregon Electronics D6 HV supplies: info needed please
  178. My version of the Vacuum State FVP5
  179. Diy Tube Phono Preamp
  180. double check the math
  181. Kitparts line stage
  182. Aikido tube heater floating
  183. Cathode and other types of feedback
  184. Tube God TH-1 Amp Regulator PCB ????
  185. step-up travel transformer for small preamp?
  186. Help a total tube amp newbie find a super simple design...
  187. heretical unity gain and ccs question
  188. Vox tubes glowing red hot
  189. What To Do
  190. Parallel Two Tubes
  191. 4 x PSE EL34
  192. EL34 CCS help
  193. Tube curve tracer project
  194. Single Ended EL-34?
  195. maxi tube tester?
  196. Zener Bias
  197. Looking to build a tube amp.
  198. Tube humming question
  199. YAPPAP (Yet Another Push-Pull Amplifier Project)
  200. voltage output dac ==> TUBE
  201. Heater switch transistor
  202. Anything post power transformer that can cause it to hum / buzz?
  203. Aikido enclosure
  204. Power Transformers. Decisions
  205. First tube after IV
  206. Suggestions for Upgrade - VDV70/100
  207. New Hybrid Output Stage and booster for SE Amp
  208. Pro and cons high DCR filter choke
  209. do-it yourself leslie help
  210. John Broskie Aikido boards
  211. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  212. Limited run PCBs - where's copyright???
  213. Hammond Amp Question
  214. Impedance matching
  215. 6111 output for CD player - opinions - some help?
  216. Sensitivity Limiter - Bogen Mx-30a
  217. Are my speakers efficient enough for tubes?
  218. Ping Sy: LED for Cathode Bias
  219. PSU capacitors/electrolytics
  220. 2A3 monoblock power supply
  221. 2 tube questions
  222. Just acquired HEATHKIT W4-AM-*picture*
  223. Passive line stage with tubes
  224. My favorite preamp
  225. Again, a preamp tube choice.
  226. Class Double A
  227. Two Stereo Tube Amps Into Monoblocks
  228. Multi-purpose tube amp (line and guitar inputs)
  229. Espey AM/FM radio (pentagrid mixer, etc.)
  230. Need help for DIY EL34PP tube amp
  231. Higher value oil capacitors?
  232. Transconductance.
  233. 5763 tetrode on OTL ?
  234. cornford harlequin
  235. Need help: 5687 tubes and heat dissipation
  236. Tube preamp, tone control problem
  237. Use 5KV transformer as output transformer?
  238. Any EL84 alternatives?
  239. help on id of tubes
  240. Sovtek 6CA7-EH Producing smoke...
  241. building V4's and phono pre
  242. pre out on a integrated tube amp?
  243. 6SN7 some good some bad
  244. Phono pre amp - thanks SY
  245. 6c33c Tube preamp
  246. Tubes for Lumley ST40 power amplifier?
  247. Plate supply of Conrad Johnson PV-5 ?
  248. 6CD6GA in Enhanced Triode Mode for SE Amp
  249. Fender 6G15 clone
  250. Gridstoppers against RF, a necessity ?

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