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  1. Power supply help!
  2. KR Tubes
  3. Bi-amp Between Tube, and SS
  4. 2 Tube questions,
  5. my biggest project ever , need lotsa help plz
  6. tube temperatures
  7. hh scott bias issues
  8. B+ required w/ ccs load
  9. Info re Soundtech powerone tube amp
  10. Verdier Regulated Power Supply
  11. 6DJ8/ECC88 mu-follower
  12. Tube Compressor
  13. Newbie PSU question
  14. Hickok Cardmatic tube tester cards
  15. Hashimoto SE Output Transformer
  16. Ripple and chokes
  17. Tubes driven by BJT's
  18. Red LED substitution questions
  19. Hytron big 71A
  20. Need some help for 6L6 amp
  21. 802 as an audio output tube
  22. Changing 6DJ8 SRPP stage gain
  23. Cooling In Cab / Minimum Vent Area?
  24. Tube voltage help
  25. MF XPre troubleshooting
  26. Giaime's Preamp Finished!!!
  27. Circuit and PCB Layout comments
  28. 4613 triode
  29. Help with inverter CCS+NFB
  30. Question about KT 88 integrated
  31. The Trials, and Tribulations of Bias
  32. Which components should be matched?
  33. Using PP output for SE?
  34. Tube Newbee Needing Guidance
  35. 12A/71A SET project
  36. 805 SE amplifier
  37. Playing with screen resistors
  38. Interpret this 12ax7 feedback loop
  39. Low voltage-drop CCS for LTP input stage?
  40. Tube Socket Mounting - rigid or floating
  41. SE-9 mod help please
  42. 2a3SE
  43. 20 Watt SE. I had found it.
  44. Ok to exceed Vg2 in triode? (Yes)
  45. Fender Adjustments
  46. Help needed in Bloomington IN
  47. % error for primary resistance
  48. Help Understanding Circuit (grounded grid I/V)
  49. Testing a 70.7v transformer
  50. thyratron?
  51. Tube frontend....
  52. Transformer and Choke Grounding?
  53. El509 Pse
  54. 6550 Safety Question
  55. Jadis Defy 7 : Manual
  56. Melos Ma-111b
  57. Old audio amp change
  58. Need 45 tubes
  59. Jadis Defy 7 : Manual ??
  60. Help for pre-amp and two single-ended finals
  61. Schematic needed:MFA Magus B
  62. Can I remove the input caps?
  63. 807 vs. 1624 tetrode ?
  64. how to make tube amp sound layback and mellow?
  65. Standard tube filament voltages and currents
  66. SE 20W. What tube?
  67. 5687 Linestage behaving odd...
  68. SMPS & tube pre-amp development board.
  69. Question about Melody KT88 amp
  70. Trafomatic Transformer
  71. Diode trick?
  72. Return of the vacuum tube sonic hologram generator
  73. 6V6 ->EL84 with 12AT7?
  74. design for 6336A OTL amp needed
  75. Aikido sound?
  76. Valve preamp
  77. GAS VR Tubes on B+
  78. Measuring Triode-Connected Pentode Curves
  79. 6L6, 12L6 not same tube!
  80. equivilent part numbers for 6K35HF
  81. Is this a start or run cap
  82. 6V6 PP under construction - pics
  83. Is this practical
  84. Idea for a 2 tube 6080 PP amp.
  85. pls tell where to buy core of transformer
  86. 300B amp PS optimization?
  87. Different value for .47uf coupling cap
  88. Old Olympic audio tube amp
  89. What Design to Use?
  90. KT90's anyone using'em ?
  91. What are they?
  92. Replace el34 with 6p3s
  93. Advice on 6V6 push pull Parallel
  94. squealing output transformer
  95. Melos Sha Gold
  96. Ways to Lower B+ in a Tube Rectifed PS
  97. Oregon Electronics D6 HV supplies: info needed please
  98. My version of the Vacuum State FVP5
  99. Diy Tube Phono Preamp
  100. double check the math
  101. Kitparts line stage
  102. Aikido tube heater floating
  103. Cathode and other types of feedback
  104. Tube God TH-1 Amp Regulator PCB ????
  105. step-up travel transformer for small preamp?
  106. Help a total tube amp newbie find a super simple design...
  107. heretical unity gain and ccs question
  108. Vox tubes glowing red hot
  109. What To Do
  110. Parallel Two Tubes
  111. 4 x PSE EL34
  112. EL34 CCS help
  113. Tube curve tracer project
  114. Single Ended EL-34?
  115. maxi tube tester?
  116. Zener Bias
  117. Looking to build a tube amp.
  118. Tube humming question
  119. YAPPAP (Yet Another Push-Pull Amplifier Project)
  120. voltage output dac ==> TUBE
  121. Heater switch transistor
  122. Anything post power transformer that can cause it to hum / buzz?
  123. Aikido enclosure
  124. Power Transformers. Decisions
  125. First tube after IV
  126. Suggestions for Upgrade - VDV70/100
  127. New Hybrid Output Stage and booster for SE Amp
  128. Pro and cons high DCR filter choke
  129. do-it yourself leslie help
  130. John Broskie Aikido boards
  131. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  132. Limited run PCBs - where's copyright???
  133. Hammond Amp Question
  134. Impedance matching
  135. 6111 output for CD player - opinions - some help?
  136. Sensitivity Limiter - Bogen Mx-30a
  137. Are my speakers efficient enough for tubes?
  138. Ping Sy: LED for Cathode Bias
  139. PSU capacitors/electrolytics
  140. 2A3 monoblock power supply
  141. 2 tube questions
  142. Just acquired HEATHKIT W4-AM-*picture*
  143. Passive line stage with tubes
  144. My favorite preamp
  145. Again, a preamp tube choice.
  146. Class Double A
  147. Two Stereo Tube Amps Into Monoblocks
  148. Multi-purpose tube amp (line and guitar inputs)
  149. Espey AM/FM radio (pentagrid mixer, etc.)
  150. Need help for DIY EL34PP tube amp
  151. Higher value oil capacitors?
  152. Transconductance.
  153. 5763 tetrode on OTL ?
  154. cornford harlequin
  155. Need help: 5687 tubes and heat dissipation
  156. Tube preamp, tone control problem
  157. Use 5KV transformer as output transformer?
  158. Any EL84 alternatives?
  159. help on id of tubes
  160. Sovtek 6CA7-EH Producing smoke...
  161. building V4's and phono pre
  162. pre out on a integrated tube amp?
  163. 6SN7 some good some bad
  164. Phono pre amp - thanks SY
  165. 6c33c Tube preamp
  166. Tubes for Lumley ST40 power amplifier?
  167. Plate supply of Conrad Johnson PV-5 ?
  168. 6CD6GA in Enhanced Triode Mode for SE Amp
  169. Fender 6G15 clone
  170. Gridstoppers against RF, a necessity ?
  171. where do I.E.T. tubes come from
  172. I wanna DIY a PP 6550 Guitar Setup
  173. Hum 300b Again
  174. Pse El34
  175. Mcintosh MR65 Tube Tuner
  176. Problem: Really Bright glowing 6CA7
  177. New member introduction & question
  178. The "PowerTotem"... a new way to SET?
  179. Please advice on KT88 Push Pull
  180. console "guitar amp" part 2
  181. Odd's n Ends Revisited 6V6 SE amp
  182. Bottlehead Foreplay with chipamp
  183. Next Amp: 2a3PSE, 300B or KT88SE UL
  184. transformer list
  185. do 300b amps really sound any good?
  186. Capacitance For Mono Block Design
  187. pilot 264
  188. Octal equivalents for 6C45?
  189. lm3875 chipamp and tube pre loud buzzing
  190. Using a spdt switch to select between triode mode and pentode mode on a guitar amp.
  191. 32 ohm bass amp.
  192. PSE UL EL84 or 6V6 or EL34?
  193. Paraphase Splitter - why is it unpopular?
  194. Tubed IR spectrophotometer
  195. Very Basic 12AX7 Heater Question
  196. 6072A/12AY7 for an AKG C12 Microphone
  197. SET Suggestions
  198. Will ccs work with a DHT?
  199. Resistor type and power rating
  200. tube patents
  201. Why use E182CC?
  202. tube
  203. understanding transformer codes
  204. Maida regulator, these results expected?
  205. Moto chassis pulled! pics!
  206. glasshouse kit amps. Any good?
  207. class B
  208. a.r.t. mpa tube pre amp
  209. Upper and lower triode in E88CC
  210. Booster Amps
  211. Help on Magnavox Paraphase (Gabevee?)
  212. New stock pre -amp tubes. Whats good?
  213. CV2492 / 6922 / E88CC
  214. HK Citation II Bias "issues"
  215. 3k vs. 5k transformer for PP 2A3
  216. Turret terminal board for line stage construction?
  217. Tube Cage Question
  218. Small and easy ESL amp
  219. SOVTEK 6550WE's any good?
  220. power tube for drivers
  221. 12B4A line driver/preamp
  222. Question about tube amp power supply caps
  223. Why separate AC heater supplies for driver and power tubes?
  224. Using one half of double triode
  225. huh ?
  226. holy cow, this sounds nice
  227. my SY CCS is only giving me 15mA
  228. Changing filter cap in HH Scott
  229. Why Class AB is bad
  230. Problem, please help !!!!!!
  231. Eico hf-30 reworking
  232. KT88 Bias Adjustment
  233. Interstage Distortion Measurements
  234. Survey: Aikido distortion
  235. Loftin-White Mod
  236. Music Angel EL34
  237. How much filtering required for DC heaters?
  238. What is the best input/driver for 2A3 SE?
  239. tube kits....
  240. !2ax7 heater wiring? Series / parallel?
  241. Shunt regulator
  242. Trying to choose a project...
  243. Old Projector amp conversion project
  244. Experiences with TJ Mesh Plate DHT's
  245. The lost Millman Seely chapters on audio amps
  246. Individual fixed bias and transf coupling
  247. Transmitter e-tour
  248. 7984
  249. Screen driven EL36 / 6CM5 /PL36 /25E5
  250. Clone Marantz 7C power supply

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