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  1. SE-9 mod help please
  2. 2a3SE
  3. 20 Watt SE. I had found it.
  4. Ok to exceed Vg2 in triode? (Yes)
  5. Fender Adjustments
  6. Help needed in Bloomington IN
  7. % error for primary resistance
  8. Help Understanding Circuit (grounded grid I/V)
  9. Testing a 70.7v transformer
  10. thyratron?
  11. Tube frontend....
  12. Transformer and Choke Grounding?
  13. El509 Pse
  14. 6550 Safety Question
  15. Jadis Defy 7 : Manual
  16. Melos Ma-111b
  17. Old audio amp change
  18. Need 45 tubes
  19. Jadis Defy 7 : Manual ??
  20. Help for pre-amp and two single-ended finals
  21. Schematic needed:MFA Magus B
  22. Can I remove the input caps?
  23. 807 vs. 1624 tetrode ?
  24. how to make tube amp sound layback and mellow?
  25. Standard tube filament voltages and currents
  26. SE 20W. What tube?
  27. 5687 Linestage behaving odd...
  28. SMPS & tube pre-amp development board.
  29. Question about Melody KT88 amp
  30. Trafomatic Transformer
  31. Diode trick?
  32. Return of the vacuum tube sonic hologram generator
  33. 6V6 ->EL84 with 12AT7?
  34. design for 6336A OTL amp needed
  35. Aikido sound?
  36. Valve preamp
  37. GAS VR Tubes on B+
  38. Measuring Triode-Connected Pentode Curves
  39. 6L6, 12L6 not same tube!
  40. equivilent part numbers for 6K35HF
  41. Is this a start or run cap
  42. 6V6 PP under construction - pics
  43. Is this practical
  44. Idea for a 2 tube 6080 PP amp.
  45. pls tell where to buy core of transformer
  46. 300B amp PS optimization?
  47. Different value for .47uf coupling cap
  48. Old Olympic audio tube amp
  49. What Design to Use?
  50. KT90's anyone using'em ?
  51. What are they?
  52. Replace el34 with 6p3s
  53. Advice on 6V6 push pull Parallel
  54. squealing output transformer
  55. Melos Sha Gold
  56. Ways to Lower B+ in a Tube Rectifed PS
  57. Oregon Electronics D6 HV supplies: info needed please
  58. My version of the Vacuum State FVP5
  59. Diy Tube Phono Preamp
  60. double check the math
  61. Kitparts line stage
  62. Aikido tube heater floating
  63. Cathode and other types of feedback
  64. Tube God TH-1 Amp Regulator PCB ????
  65. step-up travel transformer for small preamp?
  66. Help a total tube amp newbie find a super simple design...
  67. heretical unity gain and ccs question
  68. Vox tubes glowing red hot
  69. What To Do
  70. Parallel Two Tubes
  71. 4 x PSE EL34
  72. EL34 CCS help
  73. Tube curve tracer project
  74. Single Ended EL-34?
  75. maxi tube tester?
  76. Zener Bias
  77. Looking to build a tube amp.
  78. Tube humming question
  79. YAPPAP (Yet Another Push-Pull Amplifier Project)
  80. voltage output dac ==> TUBE
  81. Heater switch transistor
  82. Anything post power transformer that can cause it to hum / buzz?
  83. Aikido enclosure
  84. Power Transformers. Decisions
  85. First tube after IV
  86. Suggestions for Upgrade - VDV70/100
  87. New Hybrid Output Stage and booster for SE Amp
  88. Pro and cons high DCR filter choke
  89. do-it yourself leslie help
  90. John Broskie Aikido boards
  91. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  92. Limited run PCBs - where's copyright???
  93. Hammond Amp Question
  94. Impedance matching
  95. 6111 output for CD player - opinions - some help?
  96. Sensitivity Limiter - Bogen Mx-30a
  97. Are my speakers efficient enough for tubes?
  98. Ping Sy: LED for Cathode Bias
  99. PSU capacitors/electrolytics
  100. 2A3 monoblock power supply
  101. 2 tube questions
  102. Just acquired HEATHKIT W4-AM-*picture*
  103. Passive line stage with tubes
  104. My favorite preamp
  105. Again, a preamp tube choice.
  106. Class Double A
  107. Two Stereo Tube Amps Into Monoblocks
  108. Multi-purpose tube amp (line and guitar inputs)
  109. Espey AM/FM radio (pentagrid mixer, etc.)
  110. Need help for DIY EL34PP tube amp
  111. Higher value oil capacitors?
  112. Transconductance.
  113. 5763 tetrode on OTL ?
  114. cornford harlequin
  115. Need help: 5687 tubes and heat dissipation
  116. Tube preamp, tone control problem
  117. Use 5KV transformer as output transformer?
  118. Any EL84 alternatives?
  119. help on id of tubes
  120. Sovtek 6CA7-EH Producing smoke...
  121. building V4's and phono pre
  122. pre out on a integrated tube amp?
  123. 6SN7 some good some bad
  124. Phono pre amp - thanks SY
  125. 6c33c Tube preamp
  126. Tubes for Lumley ST40 power amplifier?
  127. Plate supply of Conrad Johnson PV-5 ?
  128. 6CD6GA in Enhanced Triode Mode for SE Amp
  129. Fender 6G15 clone
  130. Gridstoppers against RF, a necessity ?
  131. where do I.E.T. tubes come from
  132. I wanna DIY a PP 6550 Guitar Setup
  133. Hum 300b Again
  134. Pse El34
  135. Mcintosh MR65 Tube Tuner
  136. Problem: Really Bright glowing 6CA7
  137. New member introduction & question
  138. The "PowerTotem"... a new way to SET?
  139. Please advice on KT88 Push Pull
  140. console "guitar amp" part 2
  141. Odd's n Ends Revisited 6V6 SE amp
  142. Bottlehead Foreplay with chipamp
  143. Next Amp: 2a3PSE, 300B or KT88SE UL
  144. transformer list
  145. do 300b amps really sound any good?
  146. Capacitance For Mono Block Design
  147. pilot 264
  148. Octal equivalents for 6C45?
  149. lm3875 chipamp and tube pre loud buzzing
  150. Using a spdt switch to select between triode mode and pentode mode on a guitar amp.
  151. 32 ohm bass amp.
  152. PSE UL EL84 or 6V6 or EL34?
  153. Paraphase Splitter - why is it unpopular?
  154. Tubed IR spectrophotometer
  155. Very Basic 12AX7 Heater Question
  156. 6072A/12AY7 for an AKG C12 Microphone
  157. SET Suggestions
  158. Will ccs work with a DHT?
  159. Resistor type and power rating
  160. tube patents
  161. Why use E182CC?
  162. tube
  163. understanding transformer codes
  164. Maida regulator, these results expected?
  165. Moto chassis pulled! pics!
  166. glasshouse kit amps. Any good?
  167. class B
  168. a.r.t. mpa tube pre amp
  169. Upper and lower triode in E88CC
  170. Booster Amps
  171. Help on Magnavox Paraphase (Gabevee?)
  172. New stock pre -amp tubes. Whats good?
  173. CV2492 / 6922 / E88CC
  174. HK Citation II Bias "issues"
  175. 3k vs. 5k transformer for PP 2A3
  176. Turret terminal board for line stage construction?
  177. Tube Cage Question
  178. Small and easy ESL amp
  179. SOVTEK 6550WE's any good?
  180. power tube for drivers
  181. 12B4A line driver/preamp
  182. Question about tube amp power supply caps
  183. Why separate AC heater supplies for driver and power tubes?
  184. Using one half of double triode
  185. huh ?
  186. holy cow, this sounds nice
  187. my SY CCS is only giving me 15mA
  188. Changing filter cap in HH Scott
  189. Why Class AB is bad
  190. Problem, please help !!!!!!
  191. Eico hf-30 reworking
  192. KT88 Bias Adjustment
  193. Interstage Distortion Measurements
  194. Survey: Aikido distortion
  195. Loftin-White Mod
  196. Music Angel EL34
  197. How much filtering required for DC heaters?
  198. What is the best input/driver for 2A3 SE?
  199. tube kits....
  200. !2ax7 heater wiring? Series / parallel?
  201. Shunt regulator
  202. Trying to choose a project...
  203. Old Projector amp conversion project
  204. Experiences with TJ Mesh Plate DHT's
  205. The lost Millman Seely chapters on audio amps
  206. Individual fixed bias and transf coupling
  207. Transmitter e-tour
  208. 7984
  209. Screen driven EL36 / 6CM5 /PL36 /25E5
  210. Clone Marantz 7C power supply
  211. On - board supply ?
  212. Name that EL34!
  213. How much plate voltage for 6N1P's?
  214. minimalist valve pre for follower
  215. Schematic opinion needed (guitar amp)
  216. Tube availability: what would you do?
  217. Silvertone 1472 Makeover
  218. Looking for EL32 schematic
  219. oil bath cooling for tubes?
  220. Aikido Crackle Hiss Noise Solved
  221. Mini-p1 tweaks
  222. Refried Power Supply?
  223. The Edcor meets the 6AV5
  224. old console radio as guitar amp
  225. Anyone have curves for a 5HC7?
  226. Any common cathode (grounded grid) schematics?
  227. SIMPLE tube amplifier for...dummy guy...
  228. ground and earth
  229. Tube Cad Journal dead
  230. First amp
  231. 6922 direct coupled to 2A3
  232. Ok guys, get your daggers out.......
  233. How would you build a hybrid LM3xxx amp?
  234. Tade no tube amp!
  235. Sherwood 5500
  236. Most accurate way of matching triodes ?
  237. Help Identify This AMP!
  238. Old Tube Equipment Turnon
  239. Current Sourced Cathode Follower
  240. Tube Tester Data
  241. noob pre/pwer amp recording ?s
  242. Anyone heard of "in-rush" limiter resistor
  243. Will adding a 10H/125mA choke hurt bass performance
  244. Fixed bias vs. auto bias
  245. Not your average output transformer problem
  246. Balanced Audio Technology VK 3i preamplifier
  247. Musical Fidelity X10-D - changing tubes problem
  248. power transformers in series
  249. Loud sudden rumbling when turn on amp
  250. Help with tube amplification?

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