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  1. my last project
  2. TIP50 voltage regulator
  3. Collets for 212 pins
  4. K-12M Enclosure + Upgrades. Finished!
  5. Will this work?
  6. Big tube - what is it?
  7. Help! no signal! Marshall JTM60
  8. PSU topology & regulator
  9. Dynaco from scratch
  10. 6HV5A Single Ended Amp
  11. Cheap but not too much !
  12. Quick Output Transformer Question
  13. Help with guitar tube amp mods
  14. strange thing with AMC 2030
  15. GE6072 replacement tube
  16. Counterpoint 5.1 preamp
  17. Tube library
  18. RIAA recording on CD
  19. Old SE transformer measuring?
  20. Speakers for tube amps...
  21. MF x10v3
  22. Free Tube Books.....
  23. A Transformer question
  24. 6v6 PP - No sound
  25. help with interstage needed
  26. Hum in Speakers
  27. Just another PP...
  28. Leak Stereo 20 questions
  29. 10M45 CCS, what am I doing wrong ?
  30. Various transformers
  31. tubes sound
  32. Power supply help!
  33. KR Tubes
  34. Bi-amp Between Tube, and SS
  35. 2 Tube questions,
  36. my biggest project ever , need lotsa help plz
  37. tube temperatures
  38. hh scott bias issues
  39. B+ required w/ ccs load
  40. Info re Soundtech powerone tube amp
  41. Verdier Regulated Power Supply
  42. 6DJ8/ECC88 mu-follower
  43. Tube Compressor
  44. Newbie PSU question
  45. Hickok Cardmatic tube tester cards
  46. Hashimoto SE Output Transformer
  47. Ripple and chokes
  48. Tubes driven by BJT's
  49. Red LED substitution questions
  50. Hytron big 71A
  51. Need some help for 6L6 amp
  52. 802 as an audio output tube
  53. Changing 6DJ8 SRPP stage gain
  54. Cooling In Cab / Minimum Vent Area?
  55. Tube voltage help
  56. MF XPre troubleshooting
  57. Giaime's Preamp Finished!!!
  58. Circuit and PCB Layout comments
  59. 4613 triode
  60. Help with inverter CCS+NFB
  61. Question about KT 88 integrated
  62. The Trials, and Tribulations of Bias
  63. Which components should be matched?
  64. Using PP output for SE?
  65. Tube Newbee Needing Guidance
  66. 12A/71A SET project
  67. 805 SE amplifier
  68. Playing with screen resistors
  69. Interpret this 12ax7 feedback loop
  70. Low voltage-drop CCS for LTP input stage?
  71. Tube Socket Mounting - rigid or floating
  72. SE-9 mod help please
  73. 2a3SE
  74. 20 Watt SE. I had found it.
  75. Ok to exceed Vg2 in triode? (Yes)
  76. Fender Adjustments
  77. Help needed in Bloomington IN
  78. % error for primary resistance
  79. Help Understanding Circuit (grounded grid I/V)
  80. Testing a 70.7v transformer
  81. thyratron?
  82. Tube frontend....
  83. Transformer and Choke Grounding?
  84. El509 Pse
  85. 6550 Safety Question
  86. Jadis Defy 7 : Manual
  87. Melos Ma-111b
  88. Old audio amp change
  89. Need 45 tubes
  90. Jadis Defy 7 : Manual ??
  91. Help for pre-amp and two single-ended finals
  92. Schematic needed:MFA Magus B
  93. Can I remove the input caps?
  94. 807 vs. 1624 tetrode ?
  95. how to make tube amp sound layback and mellow?
  96. Standard tube filament voltages and currents
  97. SE 20W. What tube?
  98. 5687 Linestage behaving odd...
  99. SMPS & tube pre-amp development board.
  100. Question about Melody KT88 amp
  101. Trafomatic Transformer
  102. Diode trick?
  103. Return of the vacuum tube sonic hologram generator
  104. 6V6 ->EL84 with 12AT7?
  105. design for 6336A OTL amp needed
  106. Aikido sound?
  107. Valve preamp
  108. GAS VR Tubes on B+
  109. Measuring Triode-Connected Pentode Curves
  110. 6L6, 12L6 not same tube!
  111. equivilent part numbers for 6K35HF
  112. Is this a start or run cap
  113. 6V6 PP under construction - pics
  114. Is this practical
  115. Idea for a 2 tube 6080 PP amp.
  116. pls tell where to buy core of transformer
  117. 300B amp PS optimization?
  118. Different value for .47uf coupling cap
  119. Old Olympic audio tube amp
  120. What Design to Use?
  121. KT90's anyone using'em ?
  122. What are they?
  123. Replace el34 with 6p3s
  124. Advice on 6V6 push pull Parallel
  125. squealing output transformer
  126. Melos Sha Gold
  127. Ways to Lower B+ in a Tube Rectifed PS
  128. Oregon Electronics D6 HV supplies: info needed please
  129. My version of the Vacuum State FVP5
  130. Diy Tube Phono Preamp
  131. double check the math
  132. Kitparts line stage
  133. Aikido tube heater floating
  134. Cathode and other types of feedback
  135. Tube God TH-1 Amp Regulator PCB ????
  136. step-up travel transformer for small preamp?
  137. Help a total tube amp newbie find a super simple design...
  138. heretical unity gain and ccs question
  139. Vox tubes glowing red hot
  140. What To Do
  141. Parallel Two Tubes
  142. 4 x PSE EL34
  143. EL34 CCS help
  144. Tube curve tracer project
  145. Single Ended EL-34?
  146. maxi tube tester?
  147. Zener Bias
  148. Looking to build a tube amp.
  149. Tube humming question
  150. YAPPAP (Yet Another Push-Pull Amplifier Project)
  151. voltage output dac ==> TUBE
  152. Heater switch transistor
  153. Anything post power transformer that can cause it to hum / buzz?
  154. Aikido enclosure
  155. Power Transformers. Decisions
  156. First tube after IV
  157. Suggestions for Upgrade - VDV70/100
  158. New Hybrid Output Stage and booster for SE Amp
  159. Pro and cons high DCR filter choke
  160. do-it yourself leslie help
  161. John Broskie Aikido boards
  162. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  163. Limited run PCBs - where's copyright???
  164. Hammond Amp Question
  165. Impedance matching
  166. 6111 output for CD player - opinions - some help?
  167. Sensitivity Limiter - Bogen Mx-30a
  168. Are my speakers efficient enough for tubes?
  169. Ping Sy: LED for Cathode Bias
  170. PSU capacitors/electrolytics
  171. 2A3 monoblock power supply
  172. 2 tube questions
  173. Just acquired HEATHKIT W4-AM-*picture*
  174. Passive line stage with tubes
  175. My favorite preamp
  176. Again, a preamp tube choice.
  177. Class Double A
  178. Two Stereo Tube Amps Into Monoblocks
  179. Multi-purpose tube amp (line and guitar inputs)
  180. Espey AM/FM radio (pentagrid mixer, etc.)
  181. Need help for DIY EL34PP tube amp
  182. Higher value oil capacitors?
  183. Transconductance.
  184. 5763 tetrode on OTL ?
  185. cornford harlequin
  186. Need help: 5687 tubes and heat dissipation
  187. Tube preamp, tone control problem
  188. Use 5KV transformer as output transformer?
  189. Any EL84 alternatives?
  190. help on id of tubes
  191. Sovtek 6CA7-EH Producing smoke...
  192. building V4's and phono pre
  193. pre out on a integrated tube amp?
  194. 6SN7 some good some bad
  195. Phono pre amp - thanks SY
  196. 6c33c Tube preamp
  197. Tubes for Lumley ST40 power amplifier?
  198. Plate supply of Conrad Johnson PV-5 ?
  199. 6CD6GA in Enhanced Triode Mode for SE Amp
  200. Fender 6G15 clone
  201. Gridstoppers against RF, a necessity ?
  202. where do I.E.T. tubes come from
  203. I wanna DIY a PP 6550 Guitar Setup
  204. Hum 300b Again
  205. Pse El34
  206. Mcintosh MR65 Tube Tuner
  207. Problem: Really Bright glowing 6CA7
  208. New member introduction & question
  209. The "PowerTotem"... a new way to SET?
  210. Please advice on KT88 Push Pull
  211. console "guitar amp" part 2
  212. Odd's n Ends Revisited 6V6 SE amp
  213. Bottlehead Foreplay with chipamp
  214. Next Amp: 2a3PSE, 300B or KT88SE UL
  215. transformer list
  216. do 300b amps really sound any good?
  217. Capacitance For Mono Block Design
  218. pilot 264
  219. Octal equivalents for 6C45?
  220. lm3875 chipamp and tube pre loud buzzing
  221. Using a spdt switch to select between triode mode and pentode mode on a guitar amp.
  222. 32 ohm bass amp.
  223. PSE UL EL84 or 6V6 or EL34?
  224. Paraphase Splitter - why is it unpopular?
  225. Tubed IR spectrophotometer
  226. Very Basic 12AX7 Heater Question
  227. 6072A/12AY7 for an AKG C12 Microphone
  228. SET Suggestions
  229. Will ccs work with a DHT?
  230. Resistor type and power rating
  231. tube patents
  232. Why use E182CC?
  233. tube
  234. understanding transformer codes
  235. Maida regulator, these results expected?
  236. Moto chassis pulled! pics!
  237. glasshouse kit amps. Any good?
  238. class B
  239. a.r.t. mpa tube pre amp
  240. Upper and lower triode in E88CC
  241. Booster Amps
  242. Help on Magnavox Paraphase (Gabevee?)
  243. New stock pre -amp tubes. Whats good?
  244. CV2492 / 6922 / E88CC
  245. HK Citation II Bias "issues"
  246. 3k vs. 5k transformer for PP 2A3
  247. Turret terminal board for line stage construction?
  248. Tube Cage Question
  249. Small and easy ESL amp
  250. SOVTEK 6550WE's any good?

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