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  1. Need ECF80 / 6BL8 tube spice 3f4 model
  2. Capacitor above chassis
  3. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  4. Transmitter tubes
  5. what are the advantages of double core output transformers vs EI ?
  6. What is a reasonable amount ripple voltage for a 300B?
  7. "Old Like" sound transformer with a Tube !
  8. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  9. P-P resistance oddity
  10. Tube preamp vs. solid state
  11. 6l6 penthode triode
  12. Rising hum when turntable is plugged into preamp ??
  13. 6SL7 or 6SL7GT for broken Tubalizer
  14. Aikido PCB and AC filaments.
  15. Help with 300b proyect.
  16. 6P14P Amp Scratch Build
  17. 6GH8 - A Little Off?
  18. design and personality
  19. An all DHT push pull amp.
  20. Junk Pile Linestage
  21. need tube rectifier info
  22. Question on voltages
  23. How to change this design from penthode to triode or UL
  24. what glass-ware program?
  25. aikido 12b4 input 6sn7 output???
  26. GZ34 and temperature
  27. transmitter tube amp
  28. resistor and capacitor values for Aikido preamp
  29. need opinion on 2nd hand AF analyzers prices
  30. DH rectifier hookup.
  31. WE 310A vs. Russian 310A in WE91
  32. Question on the installation of LL1668 plate choke
  33. max plate voltage rating in tube datasheet
  34. choosing cap values for aikido
  35. Tubes in the Intermediate Stage
  36. c3m + 300b + miller capacitance
  37. How do I bias up a constant current series filament circuit?
  38. The perfect phono preamp.
  39. Got my 6BG6GA's last night
  40. Tubes4HiFi SP-6 preamp
  41. Shuguang 807s?
  42. LX-72A Sanity Check for Noooobie?
  43. Convert EL84 to 6V6? Anyone try this?
  44. PC96
  45. Ultrapath output transformers
  46. Grant RIAA phono with 12AX7/ECC83
  47. Ra-a??
  48. Help with my el509 amp almost done but with one problem.
  49. McIntosh chassis help needed
  50. Tube Voltage Regulator Design
  51. DC Tube Amplifiers
  52. Coupling cap voltage rating
  53. Anyone experienced in the 76 tube?
  54. aikido thump
  55. bypassing preamp board in integrated amp
  56. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  57. is it really required to use carbon comp for grid stoppers?
  58. How much trickle current can fixed bias cathode batteries stand?
  59. LM329 as voltage reference in a CCS.
  60. Euridice Preamp with 5842 and LL1660
  61. Trans. alignments
  62. Audio Note M3 Kit modification
  63. Has anyone simulated an "Aikido" amplifier?
  64. 6N1 Chinese tube and others
  65. 12AT7 Linestage design
  66. ECF80 instead of 7199
  67. 6922 vs 6SN7
  68. Transformer DCR's
  69. ferrite beads v. grid resistor
  70. What went wrong with my amp? Bass driver strange movement.
  71. Toccata Phono Preamp
  72. Drawbacks of Parafeed?
  73. aikido problem
  74. RS253 giant SE monoblock (Chinese)
  75. Plate chokes & Power chokes
  76. best amp for rock n roll
  77. quick question about tube relays
  78. Yeo's Simple EL84 with a twist
  79. ST-70 OPT, A-470 question
  80. meixing 805 tube amp problems
  81. Advice for NOOBie - Dad's Scott LK-72
  82. KT66 SE amp, grid current or not?
  83. How do I achieve more output power?
  84. Driver stage load resistor
  85. More Edcor XSM10K/10K Specs
  86. DC filament
  87. driver stages
  88. Bay Area DIY is Cancelled Because....
  89. Is constant filament current better way to build amps?
  90. Next amp build - Trainwreck - Princeton - Deluxe ???
  91. Quicksilver M135 Output Transformers Color Code?
  92. Dynaco ST70 clone, tubes substitution question
  93. caddocks mk132: has anyone used them for tube projects?
  94. Current rating and tube current draw
  95. PP splitters again
  96. preamp with output trannies.
  97. Is it the 6SN7 or me?
  98. Manufacture date of 6SN7s
  99. simple 12AU7 cathode follower
  100. How's your bench, what's your favorite setup/tool ?
  101. Siemens H42 AM/FM receiver circuit diagram?
  102. 429A load lines
  103. Mu-stage on output
  104. My new project, 2 x KT88 60W amp
  105. Tube Amp Hum
  106. Modding MEIXING MC 3008
  107. Will this work for an EL84 push pull?
  108. "Integrated" or "stand alone"
  109. Heater to cathode voltage limits in cascodes???
  110. some Japanese can help me? (OPT trafo winding)
  111. Quicksilver 8417 a class C amp?
  112. Newcomer, where to start?
  113. Benefits of Potted Output Transformers
  114. Transformer question
  115. 6AW6A, Unloaded
  116. Aikido PSU help
  117. Plate to Cathode Cap -- what's this??
  118. Need Help Understanding/Optimising a Schematic
  119. Simple basic question quick
  120. problem on thorens PR15 (strange filaments circuity)
  121. My 1W 5687 SE Direct Coupled Power Amp
  122. VT-25 linestage + step-down trafo
  123. What to do with 803's
  124. Newbie: KT88 amp info needed
  125. 805 tube amp, uProcessor controlled
  126. Class A Tube BJT Hybrid
  127. John Broskie's enhanced T8
  128. Audio Research SP6 E
  129. André Charlin anybody got his Tube Amp
  130. Info needed - Shuguang SG120-C Integrated Amp
  131. Help with 6SN7 preamp
  132. 12b4 vs. aikido linestage
  133. KT88/6550 as Triode
  134. 6AU6WA triode connected as a line amp?
  135. A few basic noobie questions.
  136. Which connector for PSU/chassis B+ supply?
  137. Quad II-Forty schematic ?:
  138. Audio Research Manuals
  139. I was thinking
  140. Is this OK for the Etude Preamp?
  141. gary pimm's latest self-biasing CCS circuit
  142. 46 tube pre
  143. BEZ T9B Intermittent problem
  144. Heathkit W-5M rebuild
  145. Masco MA25N repair
  146. Sunday's Project
  147. 5881- 6l6
  148. Gas-Rectifier power supply
  149. How to get more juice out of this shunt regulator
  150. Resistors on DHT Cathode
  151. Noise floor rise on heathkit W4-AMs when power supply transformers were swapped
  152. Help me finish up this SET project (multiple questions / ramblings)
  153. This Is Cool !!
  154. output bias servo
  155. Looking for dual power triodes.
  156. Need advice selecting a 2A3 design
  157. Feedback basics
  158. tubalizer..
  159. The 6b4g
  160. 6N6P Operating Points
  161. Lundahl+EL84 PP+concertina+input stage
  162. Looking for circuit of SE amp. for Eimac 100TH
  163. Counterpoint Sa-3000 Circuit Diagram
  164. compressor Faiirchild 670 DIY
  165. How much headroom for a choke---to stop it from humming?
  166. Bay Area Diy Festival
  167. Using Eagle for Tubes designs
  168. Worst that could happen?
  169. Identifying output tx.
  170. Small pre
  171. Cathode follower driver
  172. comment on this B+ supply
  173. ODD TUBES, what to look for?
  174. 2A3 SE and Edcorp tranny
  175. Differential amplifier with 12AX7
  176. Bogen Challenger CH30 Amplifier
  177. do I need to use a heatsink on a DN2540 in a B+ supply?
  178. Transformer, 10K 1:1 - which one?
  179. Passive Pre-Amp causes huge power loss?
  180. Rubbish fluorescent tubes: Eterna Lighting (UK), GE (US)
  181. Melos TM90 ST schematic?
  182. My first tube preamplifier:)
  183. Opinions on the Conrad Johnson MV75 amplifier please.
  184. Favorite Tubes
  185. SS replacement for 83 tube ?
  186. AMC CVT 2030 Output Transformer.
  187. 6-ohm speaker to tube amp
  188. What tubes share the pinout with the 5687?
  189. SMPS for B+ discussion
  190. SS No R No C Power Supply for Tubes
  191. Hot running regulated dc filament supply for aikido preamp
  192. B+ TX. overkill?
  193. 33 Power Pentode Design Pointers Needed
  194. What Wiki?
  195. help understanding updated DRD from J Elliano's site (using 6AN4 instead of 6n1p)
  196. Zen SE84TS
  197. 5687 tube
  198. Tube vs. Semiconducter rectification
  199. Bogen CHB35 Mods and Preamp ideas
  200. I Want To Build A 100+Watt per/channel Tube Poweramp
  201. Phonodude problem
  202. enjoythemusic's t-rex amp: where is the +70VDC tap?
  203. Earthing and how it effects sound.
  204. 6D22S Getter Question
  205. Repair of a McIntosh MC225 power amp
  206. OPA627 with tube buffer....
  207. Bell Stereophonic 3030 help
  208. Choosing the line stage preamp.
  209. I Need Help, Mcintosh/Marantz 7 content
  210. For 45 > 845: selecting an 9.5/ 10 Interstage
  211. How to reduce gain of this Tube Preamplifier ?
  212. looking for pp amp schematic without nfb
  213. Pseudo dual mono PS?
  214. WE404A drive 6L6 solution
  215. Looking for info on loudness control
  216. Tubes and minority carriers
  217. suggestions for 3 projects please
  218. DIY tube preamp kit
  219. M6 lamination: what is it?
  220. why is it that most tube projects uses copper sheetmetal?
  221. Sources in the Philippines / Manila
  222. Tube noise - Help
  223. Tiny tube amp
  224. DC heating directly heated output valves
  225. Alps 250k in a Pas-3 Question
  226. 1st cap heats up...
  227. RCA VR Tube engineering data
  228. dropping heater voltage
  229. Please Help with Sound Valves M40 Monoblock Bias Adjustment Procedure!!!
  230. Old Sony SE OPT's /w 600r tap... cathode feedback maybe?
  231. Which is the poor man 45 tube?
  232. Audio Note Low Gain Quest Power Amplifier
  233. Quad II: Which resistors?
  234. Designing a preamp with two tubes
  235. ARC Classic 30 problem
  236. Why does the 6AS7 have such high Miller capacitance ?
  237. serching 5A6 beam power pentode data/curves/schematics for AF practice amp
  238. DHT Topology Comparison Question
  239. Secondary Tap of Power Transformer?
  240. Soft-clipping Circuit/tubecad
  241. lack of bass in a 6h30 design
  242. Difference between two novals
  243. C3g
  244. All Tube Stereo power amplifier
  245. what gas VR tube?
  246. KT88 schematic
  247. Help me understand the topologies here...
  248. Finished my Amp, Need to build a PS
  249. Push-Pull driver stage?
  250. Floating the heaters

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