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  1. Leak Stereo 20 questions
  2. 10M45 CCS, what am I doing wrong ?
  3. Various transformers
  4. tubes sound
  5. Power supply help!
  6. KR Tubes
  7. Bi-amp Between Tube, and SS
  8. 2 Tube questions,
  9. my biggest project ever , need lotsa help plz
  10. tube temperatures
  11. hh scott bias issues
  12. B+ required w/ ccs load
  13. Info re Soundtech powerone tube amp
  14. Verdier Regulated Power Supply
  15. 6DJ8/ECC88 mu-follower
  16. Tube Compressor
  17. Newbie PSU question
  18. Hickok Cardmatic tube tester cards
  19. Hashimoto SE Output Transformer
  20. Ripple and chokes
  21. Tubes driven by BJT's
  22. Red LED substitution questions
  23. Hytron big 71A
  24. Need some help for 6L6 amp
  25. 802 as an audio output tube
  26. Changing 6DJ8 SRPP stage gain
  27. Cooling In Cab / Minimum Vent Area?
  28. Tube voltage help
  29. MF XPre troubleshooting
  30. Giaime's Preamp Finished!!!
  31. Circuit and PCB Layout comments
  32. 4613 triode
  33. Help with inverter CCS+NFB
  34. Question about KT 88 integrated
  35. The Trials, and Tribulations of Bias
  36. Which components should be matched?
  37. Using PP output for SE?
  38. Tube Newbee Needing Guidance
  39. 12A/71A SET project
  40. 805 SE amplifier
  41. Playing with screen resistors
  42. Interpret this 12ax7 feedback loop
  43. Low voltage-drop CCS for LTP input stage?
  44. Tube Socket Mounting - rigid or floating
  45. SE-9 mod help please
  46. 2a3SE
  47. 20 Watt SE. I had found it.
  48. Ok to exceed Vg2 in triode? (Yes)
  49. Help needed in Bloomington IN
  50. % error for primary resistance
  51. Help Understanding Circuit (grounded grid I/V)
  52. Testing a 70.7v transformer
  53. thyratron?
  54. Tube frontend....
  55. Transformer and Choke Grounding?
  56. El509 Pse
  57. 6550 Safety Question
  58. Jadis Defy 7 : Manual
  59. Melos Ma-111b
  60. Old audio amp change
  61. Need 45 tubes
  62. Jadis Defy 7 : Manual ??
  63. Help for pre-amp and two single-ended finals
  64. Schematic needed:MFA Magus B
  65. Can I remove the input caps?
  66. 807 vs. 1624 tetrode ?
  67. how to make tube amp sound layback and mellow?
  68. Standard tube filament voltages and currents
  69. SE 20W. What tube?
  70. 5687 Linestage behaving odd...
  71. SMPS & tube pre-amp development board.
  72. Question about Melody KT88 amp
  73. Trafomatic Transformer
  74. Diode trick?
  75. Return of the vacuum tube sonic hologram generator
  76. 6V6 ->EL84 with 12AT7?
  77. design for 6336A OTL amp needed
  78. Aikido sound?
  79. Valve preamp
  80. GAS VR Tubes on B+
  81. Measuring Triode-Connected Pentode Curves
  82. 6L6, 12L6 not same tube!
  83. equivilent part numbers for 6K35HF
  84. Is this a start or run cap
  85. 6V6 PP under construction - pics
  86. Is this practical
  87. Idea for a 2 tube 6080 PP amp.
  88. pls tell where to buy core of transformer
  89. 300B amp PS optimization?
  90. Different value for .47uf coupling cap
  91. Old Olympic audio tube amp
  92. What Design to Use?
  93. KT90's anyone using'em ?
  94. What are they?
  95. Replace el34 with 6p3s
  96. Advice on 6V6 push pull Parallel
  97. squealing output transformer
  98. Melos Sha Gold
  99. Ways to Lower B+ in a Tube Rectifed PS
  100. Oregon Electronics D6 HV supplies: info needed please
  101. My version of the Vacuum State FVP5
  102. Diy Tube Phono Preamp
  103. double check the math
  104. Kitparts line stage
  105. Aikido tube heater floating
  106. Cathode and other types of feedback
  107. Tube God TH-1 Amp Regulator PCB ????
  108. step-up travel transformer for small preamp?
  109. Help a total tube amp newbie find a super simple design...
  110. heretical unity gain and ccs question
  111. What To Do
  112. Parallel Two Tubes
  113. 4 x PSE EL34
  114. EL34 CCS help
  115. Tube curve tracer project
  116. Single Ended EL-34?
  117. maxi tube tester?
  118. Zener Bias
  119. Looking to build a tube amp.
  120. Tube humming question
  121. YAPPAP (Yet Another Push-Pull Amplifier Project)
  122. voltage output dac ==> TUBE
  123. Heater switch transistor
  124. Anything post power transformer that can cause it to hum / buzz?
  125. Aikido enclosure
  126. Power Transformers. Decisions
  127. First tube after IV
  128. Suggestions for Upgrade - VDV70/100
  129. New Hybrid Output Stage and booster for SE Amp
  130. Pro and cons high DCR filter choke
  131. do-it yourself leslie help
  132. John Broskie Aikido boards
  133. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  134. Limited run PCBs - where's copyright???
  135. Hammond Amp Question
  136. Impedance matching
  137. 6111 output for CD player - opinions - some help?
  138. Sensitivity Limiter - Bogen Mx-30a
  139. Are my speakers efficient enough for tubes?
  140. Ping Sy: LED for Cathode Bias
  141. PSU capacitors/electrolytics
  142. 2A3 monoblock power supply
  143. 2 tube questions
  144. Just acquired HEATHKIT W4-AM-*picture*
  145. Passive line stage with tubes
  146. My favorite preamp
  147. Again, a preamp tube choice.
  148. Class Double A
  149. Two Stereo Tube Amps Into Monoblocks
  150. Espey AM/FM radio (pentagrid mixer, etc.)
  151. Need help for DIY EL34PP tube amp
  152. Higher value oil capacitors?
  153. Transconductance.
  154. 5763 tetrode on OTL ?
  155. cornford harlequin
  156. Need help: 5687 tubes and heat dissipation
  157. Tube preamp, tone control problem
  158. Use 5KV transformer as output transformer?
  159. Any EL84 alternatives?
  160. help on id of tubes
  161. Sovtek 6CA7-EH Producing smoke...
  162. building V4's and phono pre
  163. pre out on a integrated tube amp?
  164. 6SN7 some good some bad
  165. Phono pre amp - thanks SY
  166. 6c33c Tube preamp
  167. Tubes for Lumley ST40 power amplifier?
  168. Plate supply of Conrad Johnson PV-5 ?
  169. 6CD6GA in Enhanced Triode Mode for SE Amp
  170. Gridstoppers against RF, a necessity ?
  171. where do I.E.T. tubes come from
  172. Hum 300b Again
  173. Pse El34
  174. Mcintosh MR65 Tube Tuner
  175. Problem: Really Bright glowing 6CA7
  176. New member introduction & question
  177. The "PowerTotem"... a new way to SET?
  178. Please advice on KT88 Push Pull
  179. Odd's n Ends Revisited 6V6 SE amp
  180. Bottlehead Foreplay with chipamp
  181. Next Amp: 2a3PSE, 300B or KT88SE UL
  182. transformer list
  183. do 300b amps really sound any good?
  184. Capacitance For Mono Block Design
  185. pilot 264
  186. Octal equivalents for 6C45?
  187. lm3875 chipamp and tube pre loud buzzing
  188. PSE UL EL84 or 6V6 or EL34?
  189. Paraphase Splitter - why is it unpopular?
  190. Tubed IR spectrophotometer
  191. Very Basic 12AX7 Heater Question
  192. 6072A/12AY7 for an AKG C12 Microphone
  193. SET Suggestions
  194. Will ccs work with a DHT?
  195. Resistor type and power rating
  196. tube patents
  197. Why use E182CC?
  198. tube
  199. understanding transformer codes
  200. Maida regulator, these results expected?
  201. Moto chassis pulled! pics!
  202. glasshouse kit amps. Any good?
  203. class B
  204. a.r.t. mpa tube pre amp
  205. Upper and lower triode in E88CC
  206. Booster Amps
  207. Help on Magnavox Paraphase (Gabevee?)
  208. New stock pre -amp tubes. Whats good?
  209. CV2492 / 6922 / E88CC
  210. HK Citation II Bias "issues"
  211. 3k vs. 5k transformer for PP 2A3
  212. Turret terminal board for line stage construction?
  213. Tube Cage Question
  214. Small and easy ESL amp
  215. SOVTEK 6550WE's any good?
  216. power tube for drivers
  217. 12B4A line driver/preamp
  218. Question about tube amp power supply caps
  219. Why separate AC heater supplies for driver and power tubes?
  220. Using one half of double triode
  221. huh ?
  222. holy cow, this sounds nice
  223. my SY CCS is only giving me 15mA
  224. Changing filter cap in HH Scott
  225. Why Class AB is bad
  226. Problem, please help !!!!!!
  227. Eico hf-30 reworking
  228. KT88 Bias Adjustment
  229. Interstage Distortion Measurements
  230. Survey: Aikido distortion
  231. Loftin-White Mod
  232. Music Angel EL34
  233. How much filtering required for DC heaters?
  234. What is the best input/driver for 2A3 SE?
  235. tube kits....
  236. 12AX7 heater wiring? Series / parallel?
  237. Shunt regulator
  238. Trying to choose a project...
  239. Old Projector amp conversion project
  240. Experiences with TJ Mesh Plate DHT's
  241. The lost Millman Seely chapters on audio amps
  242. Individual fixed bias and transf coupling
  243. Transmitter e-tour
  244. 7984
  245. Screen driven EL36 / 6CM5 /PL36 /25E5
  246. Clone Marantz 7C power supply
  247. On - board supply ?
  248. Name that EL34!
  249. How much plate voltage for 6N1P's?
  250. minimalist valve pre for follower

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