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  1. Bogen CH8
  2. Ah Njoe Tjoeb 4000 problem
  3. my last project
  4. TIP50 voltage regulator
  5. Collets for 212 pins
  6. K-12M Enclosure + Upgrades. Finished!
  7. Will this work?
  8. Big tube - what is it?
  9. Help! no signal! Marshall JTM60
  10. PSU topology & regulator
  11. Dynaco from scratch
  12. 6HV5A Single Ended Amp
  13. Cheap but not too much !
  14. Quick Output Transformer Question
  15. Help with guitar tube amp mods
  16. strange thing with AMC 2030
  17. GE6072 replacement tube
  18. Counterpoint 5.1 preamp
  19. Tube library
  20. RIAA recording on CD
  21. Old SE transformer measuring?
  22. Speakers for tube amps...
  23. MF x10v3
  24. Free Tube Books.....
  25. A Transformer question
  26. 6v6 PP - No sound
  27. help with interstage needed
  28. Hum in Speakers
  29. Just another PP...
  30. Leak Stereo 20 questions
  31. 10M45 CCS, what am I doing wrong ?
  32. Various transformers
  33. tubes sound
  34. Power supply help!
  35. KR Tubes
  36. Bi-amp Between Tube, and SS
  37. 2 Tube questions,
  38. my biggest project ever , need lotsa help plz
  39. tube temperatures
  40. hh scott bias issues
  41. B+ required w/ ccs load
  42. Info re Soundtech powerone tube amp
  43. Verdier Regulated Power Supply
  44. 6DJ8/ECC88 mu-follower
  45. Tube Compressor
  46. Newbie PSU question
  47. Hickok Cardmatic tube tester cards
  48. Hashimoto SE Output Transformer
  49. Ripple and chokes
  50. Tubes driven by BJT's
  51. Red LED substitution questions
  52. Hytron big 71A
  53. Need some help for 6L6 amp
  54. 802 as an audio output tube
  55. Changing 6DJ8 SRPP stage gain
  56. Cooling In Cab / Minimum Vent Area?
  57. Tube voltage help
  58. MF XPre troubleshooting
  59. Giaime's Preamp Finished!!!
  60. Circuit and PCB Layout comments
  61. 4613 triode
  62. Help with inverter CCS+NFB
  63. Question about KT 88 integrated
  64. The Trials, and Tribulations of Bias
  65. Which components should be matched?
  66. Using PP output for SE?
  67. Tube Newbee Needing Guidance
  68. 12A/71A SET project
  69. 805 SE amplifier
  70. Playing with screen resistors
  71. Interpret this 12ax7 feedback loop
  72. Low voltage-drop CCS for LTP input stage?
  73. Tube Socket Mounting - rigid or floating
  74. SE-9 mod help please
  75. 2a3SE
  76. 20 Watt SE. I had found it.
  77. Ok to exceed Vg2 in triode? (Yes)
  78. Fender Adjustments
  79. Help needed in Bloomington IN
  80. % error for primary resistance
  81. Help Understanding Circuit (grounded grid I/V)
  82. Testing a 70.7v transformer
  83. thyratron?
  84. Tube frontend....
  85. Transformer and Choke Grounding?
  86. El509 Pse
  87. 6550 Safety Question
  88. Jadis Defy 7 : Manual
  89. Melos Ma-111b
  90. Old audio amp change
  91. Need 45 tubes
  92. Jadis Defy 7 : Manual ??
  93. Help for pre-amp and two single-ended finals
  94. Schematic needed:MFA Magus B
  95. Can I remove the input caps?
  96. 807 vs. 1624 tetrode ?
  97. how to make tube amp sound layback and mellow?
  98. Standard tube filament voltages and currents
  99. SE 20W. What tube?
  100. 5687 Linestage behaving odd...
  101. SMPS & tube pre-amp development board.
  102. Question about Melody KT88 amp
  103. Trafomatic Transformer
  104. Diode trick?
  105. Return of the vacuum tube sonic hologram generator
  106. 6V6 ->EL84 with 12AT7?
  107. design for 6336A OTL amp needed
  108. Aikido sound?
  109. Valve preamp
  110. GAS VR Tubes on B+
  111. Measuring Triode-Connected Pentode Curves
  112. 6L6, 12L6 not same tube!
  113. equivilent part numbers for 6K35HF
  114. Is this a start or run cap
  115. 6V6 PP under construction - pics
  116. Is this practical
  117. Idea for a 2 tube 6080 PP amp.
  118. pls tell where to buy core of transformer
  119. 300B amp PS optimization?
  120. Different value for .47uf coupling cap
  121. Old Olympic audio tube amp
  122. What Design to Use?
  123. KT90's anyone using'em ?
  124. What are they?
  125. Replace el34 with 6p3s
  126. Advice on 6V6 push pull Parallel
  127. squealing output transformer
  128. Melos Sha Gold
  129. Ways to Lower B+ in a Tube Rectifed PS
  130. Oregon Electronics D6 HV supplies: info needed please
  131. My version of the Vacuum State FVP5
  132. Diy Tube Phono Preamp
  133. double check the math
  134. Kitparts line stage
  135. Aikido tube heater floating
  136. Cathode and other types of feedback
  137. Tube God TH-1 Amp Regulator PCB ????
  138. step-up travel transformer for small preamp?
  139. Help a total tube amp newbie find a super simple design...
  140. heretical unity gain and ccs question
  141. Vox tubes glowing red hot
  142. What To Do
  143. Parallel Two Tubes
  144. 4 x PSE EL34
  145. EL34 CCS help
  146. Tube curve tracer project
  147. Single Ended EL-34?
  148. maxi tube tester?
  149. Zener Bias
  150. Looking to build a tube amp.
  151. Tube humming question
  152. YAPPAP (Yet Another Push-Pull Amplifier Project)
  153. voltage output dac ==> TUBE
  154. Heater switch transistor
  155. Anything post power transformer that can cause it to hum / buzz?
  156. Aikido enclosure
  157. Power Transformers. Decisions
  158. First tube after IV
  159. Suggestions for Upgrade - VDV70/100
  160. New Hybrid Output Stage and booster for SE Amp
  161. Pro and cons high DCR filter choke
  162. do-it yourself leslie help
  163. John Broskie Aikido boards
  164. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  165. Limited run PCBs - where's copyright???
  166. Hammond Amp Question
  167. Impedance matching
  168. 6111 output for CD player - opinions - some help?
  169. Sensitivity Limiter - Bogen Mx-30a
  170. Are my speakers efficient enough for tubes?
  171. Ping Sy: LED for Cathode Bias
  172. PSU capacitors/electrolytics
  173. 2A3 monoblock power supply
  174. 2 tube questions
  175. Just acquired HEATHKIT W4-AM-*picture*
  176. Passive line stage with tubes
  177. My favorite preamp
  178. Again, a preamp tube choice.
  179. Class Double A
  180. Two Stereo Tube Amps Into Monoblocks
  181. Multi-purpose tube amp (line and guitar inputs)
  182. Espey AM/FM radio (pentagrid mixer, etc.)
  183. Need help for DIY EL34PP tube amp
  184. Higher value oil capacitors?
  185. Transconductance.
  186. 5763 tetrode on OTL ?
  187. cornford harlequin
  188. Need help: 5687 tubes and heat dissipation
  189. Tube preamp, tone control problem
  190. Use 5KV transformer as output transformer?
  191. Any EL84 alternatives?
  192. help on id of tubes
  193. Sovtek 6CA7-EH Producing smoke...
  194. building V4's and phono pre
  195. pre out on a integrated tube amp?
  196. 6SN7 some good some bad
  197. Phono pre amp - thanks SY
  198. 6c33c Tube preamp
  199. Tubes for Lumley ST40 power amplifier?
  200. Plate supply of Conrad Johnson PV-5 ?
  201. 6CD6GA in Enhanced Triode Mode for SE Amp
  202. Fender 6G15 clone
  203. Gridstoppers against RF, a necessity ?
  204. where do I.E.T. tubes come from
  205. I wanna DIY a PP 6550 Guitar Setup
  206. Hum 300b Again
  207. Pse El34
  208. Mcintosh MR65 Tube Tuner
  209. Problem: Really Bright glowing 6CA7
  210. New member introduction & question
  211. The "PowerTotem"... a new way to SET?
  212. Please advice on KT88 Push Pull
  213. console "guitar amp" part 2
  214. Odd's n Ends Revisited 6V6 SE amp
  215. Bottlehead Foreplay with chipamp
  216. Next Amp: 2a3PSE, 300B or KT88SE UL
  217. transformer list
  218. do 300b amps really sound any good?
  219. Capacitance For Mono Block Design
  220. pilot 264
  221. Octal equivalents for 6C45?
  222. lm3875 chipamp and tube pre loud buzzing
  223. Using a spdt switch to select between triode mode and pentode mode on a guitar amp.
  224. 32 ohm bass amp.
  225. PSE UL EL84 or 6V6 or EL34?
  226. Paraphase Splitter - why is it unpopular?
  227. Tubed IR spectrophotometer
  228. Very Basic 12AX7 Heater Question
  229. 6072A/12AY7 for an AKG C12 Microphone
  230. SET Suggestions
  231. Will ccs work with a DHT?
  232. Resistor type and power rating
  233. tube patents
  234. Why use E182CC?
  235. tube
  236. understanding transformer codes
  237. Maida regulator, these results expected?
  238. Moto chassis pulled! pics!
  239. glasshouse kit amps. Any good?
  240. class B
  241. a.r.t. mpa tube pre amp
  242. Upper and lower triode in E88CC
  243. Booster Amps
  244. Help on Magnavox Paraphase (Gabevee?)
  245. New stock pre -amp tubes. Whats good?
  246. CV2492 / 6922 / E88CC
  247. HK Citation II Bias "issues"
  248. 3k vs. 5k transformer for PP 2A3
  249. Turret terminal board for line stage construction?
  250. Tube Cage Question

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