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  1. Did I get in over my head too soon?!?
  2. Parallel output tubes
  3. Dropping filament volts/ L-W ramblings
  4. Rogers Cadet III Power problem ?
  5. about bi-cap
  6. HOT Iron ?
  7. how to set current in G Pimm's latest self-biasing CCS circuit?
  8. Low pass active tube crossover
  9. Ecological recycling amplifier (6CU6)
  10. Need ECF80 / 6BL8 tube spice 3f4 model
  11. Capacitor above chassis
  12. PS Help
  13. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  14. Transmitter tubes
  15. Power Supply Construction
  16. what are the advantages of double core output transformers vs EI ?
  17. What is a reasonable amount ripple voltage for a 300B?
  18. "Old Like" sound transformer with a Tube !
  19. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  20. P-P resistance oddity
  21. Tube preamp vs. solid state
  22. 6l6 penthode triode
  23. Rising hum when turntable is plugged into preamp ??
  24. 6SL7 or 6SL7GT for broken Tubalizer
  25. Aikido PCB and AC filaments.
  26. Help with 300b proyect.
  27. 6P14P Amp Scratch Build
  28. 6GH8 - A Little Off?
  29. design and personality
  30. An all DHT push pull amp.
  31. Junk Pile Linestage
  32. need tube rectifier info
  33. Question on voltages
  34. How to change this design from penthode to triode or UL
  35. what glass-ware program?
  36. aikido 12b4 input 6sn7 output???
  37. GZ34 and temperature
  38. schematic search crate bv-60
  39. First Guitar Amp Help
  40. power supply for my single ended amp
  41. transmitter tube amp
  42. resistor and capacitor values for Aikido preamp
  43. need opinion on 2nd hand AF analyzers prices
  44. DH rectifier hookup.
  45. WE 310A vs. Russian 310A in WE91
  46. CRC PSU for preamp
  47. Question on the installation of LL1668 plate choke
  48. max plate voltage rating in tube datasheet
  49. Tube for a shunt voltage regulator
  50. choosing cap values for aikido
  51. Tubes in the Intermediate Stage
  52. c3m + 300b + miller capacitance
  53. How do I bias up a constant current series filament circuit?
  54. The perfect phono preamp.
  55. Got my 6BG6GA's last night
  56. Tubes4HiFi SP-6 preamp
  57. Stupid electrolytic cap question.......
  58. Shuguang 807s?
  59. LX-72A Sanity Check for Noooobie?
  60. Convert EL84 to 6V6? Anyone try this?
  61. PC96
  62. Ultrapath output transformers
  63. Grant RIAA phono with 12AX7/ECC83
  64. Tube VS SS voltage regulators - any advantages?
  65. Ra-a??
  66. Help with my el509 amp almost done but with one problem.
  67. McIntosh chassis help needed
  68. Tube Voltage Regulator Design
  69. DC Tube Amplifiers
  70. Coupling cap voltage rating
  71. Anyone experienced in the 76 tube?
  72. aikido thump
  73. bypassing preamp board in integrated amp
  74. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  75. is it really required to use carbon comp for grid stoppers?
  76. How much trickle current can fixed bias cathode batteries stand?
  77. Who is the administrator?
  78. LM329 as voltage reference in a CCS.
  79. Euridice Preamp with 5842 and LL1660
  80. Trans. alignments
  81. Audio Note M3 Kit modification
  82. Has anyone simulated an "Aikido" amplifier?
  83. Upgrading ST70 PS w/ SS question
  84. 6N1 Chinese tube and others
  85. 12AT7 Linestage design
  86. ECF80 instead of 7199
  87. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  88. 6922 vs 6SN7
  89. Transformer DCR's
  90. ferrite beads v. grid resistor
  91. What went wrong with my amp? Bass driver strange movement.
  92. Toccata Phono Preamp
  93. Drawbacks of Parafeed?
  94. aikido problem
  95. RS253 giant SE monoblock (Chinese)
  96. Plate chokes & Power chokes
  97. 10uF filter cap too small? PSU schematic inside
  98. HOT ROD DELUXE: CRACKLE...POP...what to do?
  99. converting Baldwin organ amp to guitar
  100. best amp for rock n roll
  101. quick question about tube relays
  102. Yeo's Simple EL84 with a twist
  103. ST-70 OPT, A-470 question
  104. meixing 805 tube amp problems
  105. Advice for NOOBie - Dad's Scott LK-72
  106. Peavey Valve King 112
  107. KT66 SE amp, grid current or not?
  108. 269EX in a champ?
  109. How do I achieve more output power?
  110. Driver stage load resistor
  111. More Edcor XSM10K/10K Specs
  112. DC filament
  113. driver stages
  114. Bay Area DIY is Cancelled Because....
  115. Is constant filament current better way to build amps?
  116. Next amp build - Trainwreck - Princeton - Deluxe ???
  117. Quicksilver M135 Output Transformers Color Code?
  118. Dynaco ST70 clone, tubes substitution question
  119. caddocks mk132: has anyone used them for tube projects?
  120. DIY Pro Audio Recording Gear - La2a, Pultec, more.
  121. size of filtering caps SS vs OTL tube
  122. Current rating and tube current draw
  123. NUCLON -- My first hybrid guitar amp
  124. PP splitters again
  125. preamp with output trannies.
  126. Is it the 6SN7 or me?
  127. My Kind of Guitar Tuner
  128. Regulating tube amp power supply - can Iget away with a simpler CLC filtering scheme?
  129. Manufacture date of 6SN7s
  130. simple 12AU7 cathode follower
  131. How's your bench, what's your favorite setup/tool ?
  132. Siemens H42 AM/FM receiver circuit diagram?
  133. 429A load lines
  134. Mu-stage on output
  135. My new project, 2 x KT88 60W amp
  136. Tube Amp Hum
  137. Modding MEIXING MC 3008
  138. crate vc 2110 schematic ???
  139. Will this work for an EL84 push pull?
  140. "Integrated" or "stand alone"
  141. Heater to cathode voltage limits in cascodes???
  142. some Japanese can help me? (OPT trafo winding)
  143. Quicksilver 8417 a class C amp?
  144. Newcomer, where to start?
  145. Benefits of Potted Output Transformers
  146. Transformer question
  147. 6AW6A, Unloaded
  148. Aikido PSU help
  149. Rectifier that doesn't need own filament supply?
  150. Plate to Cathode Cap -- what's this??
  151. Need Help Understanding/Optimising a Schematic
  152. Simple basic question quick
  153. problem on thorens PR15 (strange filaments circuity)
  154. My 1W 5687 SE Direct Coupled Power Amp
  155. VT-25 linestage + step-down trafo
  156. What to do with 803's
  157. Newbie: KT88 amp info needed
  158. 805 tube amp, uProcessor controlled
  159. Class A Tube BJT Hybrid
  160. John Broskie's enhanced T8
  161. Audio Research SP6 E
  162. André Charlin anybody got his Tube Amp
  163. Info needed - Shuguang SG120-C Integrated Amp
  164. Help with 6SN7 preamp
  165. 12b4 vs. aikido linestage
  166. KT88/6550 as Triode
  167. 6AU6WA triode connected as a line amp?
  168. A few basic noobie questions.
  169. Which connector for PSU/chassis B+ supply?
  170. Quad II-Forty schematic ?:
  171. Audio Research Manuals
  172. I was thinking
  173. silicon or tube rectifier?
  174. Is this OK for the Etude Preamp?
  175. gary pimm's latest self-biasing CCS circuit
  176. 46 tube pre
  177. BEZ T9B Intermittent problem
  178. Heathkit W-5M rebuild
  179. Masco MA25N repair
  180. Sunday's Project
  181. 5881- 6l6
  182. Gas-Rectifier power supply
  183. How to get more juice out of this shunt regulator
  184. Resistors on DHT Cathode
  185. Noise floor rise on heathkit W4-AMs when power supply transformers were swapped
  186. Help me finish up this SET project (multiple questions / ramblings)
  187. This Is Cool !!
  188. output bias servo
  189. Looking for dual power triodes.
  190. Need advice selecting a 2A3 design
  191. Feedback basics
  192. tubalizer..
  193. The 6b4g
  194. 6N6P Operating Points
  195. Lundahl+EL84 PP+concertina+input stage
  196. Help wanted for a truly loco project. (A Tube--gainclone hybrid guitar amp!)
  197. Looking for circuit of SE amp. for Eimac 100TH
  198. Counterpoint Sa-3000 Circuit Diagram
  199. compressor Faiirchild 670 DIY
  200. How much headroom for a choke---to stop it from humming?
  201. Bay Area Diy Festival
  202. Using Eagle for Tubes designs
  203. Worst that could happen?
  204. Identifying output tx.
  205. Small pre
  206. Cathode follower driver
  207. comment on this B+ supply
  208. ODD TUBES, what to look for?
  209. 2A3 SE and Edcorp tranny
  210. Differential amplifier with 12AX7
  211. Bogen Challenger CH30 Amplifier
  212. do I need to use a heatsink on a DN2540 in a B+ supply?
  213. Transformer, 10K 1:1 - which one?
  214. Where to find Blackgate Caps?
  215. Passive Pre-Amp causes huge power loss?
  216. Rubbish fluorescent tubes: Eterna Lighting (UK), GE (US)
  217. Melos TM90 ST schematic?
  218. My first tube preamplifier:)
  219. Opinions on the Conrad Johnson MV75 amplifier please.
  220. Favorite Tubes
  221. SS replacement for 83 tube ?
  222. AMC CVT 2030 Output Transformer.
  223. 6-ohm speaker to tube amp
  224. What tubes share the pinout with the 5687?
  225. SMPS for B+ discussion
  226. Building a 200W+ bass amp
  227. need help understanding voltage regulator schematic (using CCS) from Raleigh Audio
  228. SS No R No C Power Supply for Tubes
  229. FREDs? Replace 1N4003 rectifier diodes?
  230. Hot running regulated dc filament supply for aikido preamp
  231. B+ TX. overkill?
  232. 33 Power Pentode Design Pointers Needed
  233. What Wiki?
  234. help understanding updated DRD from J Elliano's site (using 6AN4 instead of 6n1p)
  235. Zen SE84TS
  236. 5687 tube
  237. Tube vs. Semiconducter rectification
  238. Bogen CHB35 Mods and Preamp ideas
  239. I Want To Build A 100+Watt per/channel Tube Poweramp
  240. Phonodude problem
  241. enjoythemusic's t-rex amp: where is the +70VDC tap?
  242. Earthing and how it effects sound.
  243. Rectifier question
  244. Help for SE Main Transformer
  245. 6D22S Getter Question
  246. Repair of a McIntosh MC225 power amp
  247. OPA627 with tube buffer....
  248. Bell Stereophonic 3030 help
  249. Choosing the line stage preamp.
  250. I Need Help, Mcintosh/Marantz 7 content

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