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  1. Ah Njoe Tjoeb 4000 problem
  2. my last project
  3. TIP50 voltage regulator
  4. Collets for 212 pins
  5. K-12M Enclosure + Upgrades. Finished!
  6. Will this work?
  7. Big tube - what is it?
  8. Help! no signal! Marshall JTM60
  9. PSU topology & regulator
  10. Dynaco from scratch
  11. 6HV5A Single Ended Amp
  12. Cheap but not too much !
  13. Quick Output Transformer Question
  14. Help with guitar tube amp mods
  15. strange thing with AMC 2030
  16. GE6072 replacement tube
  17. Counterpoint 5.1 preamp
  18. Tube library
  19. RIAA recording on CD
  20. Old SE transformer measuring?
  21. Speakers for tube amps...
  22. MF x10v3
  23. Free Tube Books.....
  24. A Transformer question
  25. 6v6 PP - No sound
  26. help with interstage needed
  27. Hum in Speakers
  28. Just another PP...
  29. Leak Stereo 20 questions
  30. 10M45 CCS, what am I doing wrong ?
  31. Various transformers
  32. tubes sound
  33. Power supply help!
  34. KR Tubes
  35. Bi-amp Between Tube, and SS
  36. 2 Tube questions,
  37. my biggest project ever , need lotsa help plz
  38. tube temperatures
  39. hh scott bias issues
  40. B+ required w/ ccs load
  41. Info re Soundtech powerone tube amp
  42. Verdier Regulated Power Supply
  43. 6DJ8/ECC88 mu-follower
  44. Tube Compressor
  45. Newbie PSU question
  46. Hickok Cardmatic tube tester cards
  47. Hashimoto SE Output Transformer
  48. Ripple and chokes
  49. Tubes driven by BJT's
  50. Red LED substitution questions
  51. Hytron big 71A
  52. Need some help for 6L6 amp
  53. 802 as an audio output tube
  54. Changing 6DJ8 SRPP stage gain
  55. Cooling In Cab / Minimum Vent Area?
  56. Tube voltage help
  57. MF XPre troubleshooting
  58. Giaime's Preamp Finished!!!
  59. Circuit and PCB Layout comments
  60. 4613 triode
  61. Help with inverter CCS+NFB
  62. Question about KT 88 integrated
  63. The Trials, and Tribulations of Bias
  64. Which components should be matched?
  65. Using PP output for SE?
  66. Tube Newbee Needing Guidance
  67. 12A/71A SET project
  68. 805 SE amplifier
  69. Playing with screen resistors
  70. Interpret this 12ax7 feedback loop
  71. Low voltage-drop CCS for LTP input stage?
  72. Tube Socket Mounting - rigid or floating
  73. SE-9 mod help please
  74. 2a3SE
  75. 20 Watt SE. I had found it.
  76. Ok to exceed Vg2 in triode? (Yes)
  77. Fender Adjustments
  78. Help needed in Bloomington IN
  79. % error for primary resistance
  80. Help Understanding Circuit (grounded grid I/V)
  81. Testing a 70.7v transformer
  82. thyratron?
  83. Tube frontend....
  84. Transformer and Choke Grounding?
  85. El509 Pse
  86. 6550 Safety Question
  87. Jadis Defy 7 : Manual
  88. Melos Ma-111b
  89. Old audio amp change
  90. Need 45 tubes
  91. Jadis Defy 7 : Manual ??
  92. Help for pre-amp and two single-ended finals
  93. Schematic needed:MFA Magus B
  94. Can I remove the input caps?
  95. 807 vs. 1624 tetrode ?
  96. how to make tube amp sound layback and mellow?
  97. Standard tube filament voltages and currents
  98. SE 20W. What tube?
  99. 5687 Linestage behaving odd...
  100. SMPS & tube pre-amp development board.
  101. Question about Melody KT88 amp
  102. Trafomatic Transformer
  103. Diode trick?
  104. Return of the vacuum tube sonic hologram generator
  105. 6V6 ->EL84 with 12AT7?
  106. design for 6336A OTL amp needed
  107. Aikido sound?
  108. Valve preamp
  109. GAS VR Tubes on B+
  110. Measuring Triode-Connected Pentode Curves
  111. 6L6, 12L6 not same tube!
  112. equivilent part numbers for 6K35HF
  113. Is this a start or run cap
  114. 6V6 PP under construction - pics
  115. Is this practical
  116. Idea for a 2 tube 6080 PP amp.
  117. pls tell where to buy core of transformer
  118. 300B amp PS optimization?
  119. Different value for .47uf coupling cap
  120. Old Olympic audio tube amp
  121. What Design to Use?
  122. KT90's anyone using'em ?
  123. What are they?
  124. Replace el34 with 6p3s
  125. Advice on 6V6 push pull Parallel
  126. squealing output transformer
  127. Melos Sha Gold
  128. Ways to Lower B+ in a Tube Rectifed PS
  129. Oregon Electronics D6 HV supplies: info needed please
  130. My version of the Vacuum State FVP5
  131. Diy Tube Phono Preamp
  132. double check the math
  133. Kitparts line stage
  134. Aikido tube heater floating
  135. Cathode and other types of feedback
  136. Tube God TH-1 Amp Regulator PCB ????
  137. step-up travel transformer for small preamp?
  138. Help a total tube amp newbie find a super simple design...
  139. heretical unity gain and ccs question
  140. Vox tubes glowing red hot
  141. What To Do
  142. Parallel Two Tubes
  143. 4 x PSE EL34
  144. EL34 CCS help
  145. Tube curve tracer project
  146. Single Ended EL-34?
  147. maxi tube tester?
  148. Zener Bias
  149. Looking to build a tube amp.
  150. Tube humming question
  151. YAPPAP (Yet Another Push-Pull Amplifier Project)
  152. voltage output dac ==> TUBE
  153. Heater switch transistor
  154. Anything post power transformer that can cause it to hum / buzz?
  155. Aikido enclosure
  156. Power Transformers. Decisions
  157. First tube after IV
  158. Suggestions for Upgrade - VDV70/100
  159. New Hybrid Output Stage and booster for SE Amp
  160. Pro and cons high DCR filter choke
  161. do-it yourself leslie help
  162. John Broskie Aikido boards
  163. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  164. Limited run PCBs - where's copyright???
  165. Hammond Amp Question
  166. Impedance matching
  167. 6111 output for CD player - opinions - some help?
  168. Sensitivity Limiter - Bogen Mx-30a
  169. Are my speakers efficient enough for tubes?
  170. Ping Sy: LED for Cathode Bias
  171. PSU capacitors/electrolytics
  172. 2A3 monoblock power supply
  173. 2 tube questions
  174. Just acquired HEATHKIT W4-AM-*picture*
  175. Passive line stage with tubes
  176. My favorite preamp
  177. Again, a preamp tube choice.
  178. Class Double A
  179. Two Stereo Tube Amps Into Monoblocks
  180. Multi-purpose tube amp (line and guitar inputs)
  181. Espey AM/FM radio (pentagrid mixer, etc.)
  182. Need help for DIY EL34PP tube amp
  183. Higher value oil capacitors?
  184. Transconductance.
  185. 5763 tetrode on OTL ?
  186. cornford harlequin
  187. Need help: 5687 tubes and heat dissipation
  188. Tube preamp, tone control problem
  189. Use 5KV transformer as output transformer?
  190. Any EL84 alternatives?
  191. help on id of tubes
  192. Sovtek 6CA7-EH Producing smoke...
  193. building V4's and phono pre
  194. pre out on a integrated tube amp?
  195. 6SN7 some good some bad
  196. Phono pre amp - thanks SY
  197. 6c33c Tube preamp
  198. Tubes for Lumley ST40 power amplifier?
  199. Plate supply of Conrad Johnson PV-5 ?
  200. 6CD6GA in Enhanced Triode Mode for SE Amp
  201. Fender 6G15 clone
  202. Gridstoppers against RF, a necessity ?
  203. where do I.E.T. tubes come from
  204. I wanna DIY a PP 6550 Guitar Setup
  205. Hum 300b Again
  206. Pse El34
  207. Mcintosh MR65 Tube Tuner
  208. Problem: Really Bright glowing 6CA7
  209. New member introduction & question
  210. The "PowerTotem"... a new way to SET?
  211. Please advice on KT88 Push Pull
  212. console "guitar amp" part 2
  213. Odd's n Ends Revisited 6V6 SE amp
  214. Bottlehead Foreplay with chipamp
  215. Next Amp: 2a3PSE, 300B or KT88SE UL
  216. transformer list
  217. do 300b amps really sound any good?
  218. Capacitance For Mono Block Design
  219. pilot 264
  220. Octal equivalents for 6C45?
  221. lm3875 chipamp and tube pre loud buzzing
  222. Using a spdt switch to select between triode mode and pentode mode on a guitar amp.
  223. 32 ohm bass amp.
  224. PSE UL EL84 or 6V6 or EL34?
  225. Paraphase Splitter - why is it unpopular?
  226. Tubed IR spectrophotometer
  227. Very Basic 12AX7 Heater Question
  228. 6072A/12AY7 for an AKG C12 Microphone
  229. SET Suggestions
  230. Will ccs work with a DHT?
  231. Resistor type and power rating
  232. tube patents
  233. Why use E182CC?
  234. tube
  235. understanding transformer codes
  236. Maida regulator, these results expected?
  237. Moto chassis pulled! pics!
  238. glasshouse kit amps. Any good?
  239. class B
  240. a.r.t. mpa tube pre amp
  241. Upper and lower triode in E88CC
  242. Booster Amps
  243. Help on Magnavox Paraphase (Gabevee?)
  244. New stock pre -amp tubes. Whats good?
  245. CV2492 / 6922 / E88CC
  246. HK Citation II Bias "issues"
  247. 3k vs. 5k transformer for PP 2A3
  248. Turret terminal board for line stage construction?
  249. Tube Cage Question
  250. Small and easy ESL amp

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