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  1. Designing my very first tube amp...
  2. Diode bridge for Valve Buffered GC
  3. 6S41S (6C41C) Amplifier
  4. audio research sp11 upgrade help please
  5. The good, the bad, and the ugly OTL amplifiers
  6. Z2b tube rectifier
  7. Sparks inside GZ34
  8. Help with EV4417 6cm5/EL36
  9. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  10. My Cornet2 Tube Phono Preamp
  11. bright switch to bias circuit?
  12. Regulated AC...thought some of you might be interested
  13. Aikido PSU - integrated or standalone???
  14. Frank Philipse's tube site
  15. World' smallest GM-70 set
  16. Question on output hum on tube amp?
  17. Aikido Preamp
  18. Argh!!
  19. EL84 bias point
  20. Coupling cap rating
  21. Regulated power supply
  22. outstanding book??
  23. when the datasheet says "vertical mounting: up or down", does it mean...
  24. half wave rectifier will not saturate transformer core?
  25. Did I get in over my head too soon?!?
  26. Parallel output tubes
  27. Dropping filament volts/ L-W ramblings
  28. Rogers Cadet III Power problem ?
  29. about bi-cap
  30. HOT Iron ?
  31. how to set current in G Pimm's latest self-biasing CCS circuit?
  32. Low pass active tube crossover
  33. Ecological recycling amplifier (6CU6)
  34. Need ECF80 / 6BL8 tube spice 3f4 model
  35. Capacitor above chassis
  36. PS Help
  37. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  38. Transmitter tubes
  39. Power Supply Construction
  40. what are the advantages of double core output transformers vs EI ?
  41. What is a reasonable amount ripple voltage for a 300B?
  42. "Old Like" sound transformer with a Tube !
  43. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  44. P-P resistance oddity
  45. Tube preamp vs. solid state
  46. 6l6 penthode triode
  47. Rising hum when turntable is plugged into preamp ??
  48. 6SL7 or 6SL7GT for broken Tubalizer
  49. Aikido PCB and AC filaments.
  50. Help with 300b proyect.
  51. 6P14P Amp Scratch Build
  52. 6GH8 - A Little Off?
  53. design and personality
  54. An all DHT push pull amp.
  55. Junk Pile Linestage
  56. need tube rectifier info
  57. Question on voltages
  58. How to change this design from penthode to triode or UL
  59. what glass-ware program?
  60. aikido 12b4 input 6sn7 output???
  61. GZ34 and temperature
  62. schematic search crate bv-60
  63. First Guitar Amp Help
  64. power supply for my single ended amp
  65. transmitter tube amp
  66. resistor and capacitor values for Aikido preamp
  67. need opinion on 2nd hand AF analyzers prices
  68. DH rectifier hookup.
  69. WE 310A vs. Russian 310A in WE91
  70. CRC PSU for preamp
  71. Question on the installation of LL1668 plate choke
  72. max plate voltage rating in tube datasheet
  73. Tube for a shunt voltage regulator
  74. choosing cap values for aikido
  75. Tubes in the Intermediate Stage
  76. c3m + 300b + miller capacitance
  77. How do I bias up a constant current series filament circuit?
  78. The perfect phono preamp.
  79. Got my 6BG6GA's last night
  80. Tubes4HiFi SP-6 preamp
  81. Stupid electrolytic cap question.......
  82. Shuguang 807s?
  83. LX-72A Sanity Check for Noooobie?
  84. Convert EL84 to 6V6? Anyone try this?
  85. PC96
  86. Ultrapath output transformers
  87. Grant RIAA phono with 12AX7/ECC83
  88. Tube VS SS voltage regulators - any advantages?
  89. Ra-a??
  90. Help with my el509 amp almost done but with one problem.
  91. McIntosh chassis help needed
  92. Tube Voltage Regulator Design
  93. DC Tube Amplifiers
  94. Coupling cap voltage rating
  95. Anyone experienced in the 76 tube?
  96. aikido thump
  97. bypassing preamp board in integrated amp
  98. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  99. is it really required to use carbon comp for grid stoppers?
  100. How much trickle current can fixed bias cathode batteries stand?
  101. Who is the administrator?
  102. LM329 as voltage reference in a CCS.
  103. Euridice Preamp with 5842 and LL1660
  104. Trans. alignments
  105. Audio Note M3 Kit modification
  106. Has anyone simulated an "Aikido" amplifier?
  107. Upgrading ST70 PS w/ SS question
  108. 6N1 Chinese tube and others
  109. 12AT7 Linestage design
  110. ECF80 instead of 7199
  111. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  112. 6922 vs 6SN7
  113. Transformer DCR's
  114. ferrite beads v. grid resistor
  115. What went wrong with my amp? Bass driver strange movement.
  116. Toccata Phono Preamp
  117. Drawbacks of Parafeed?
  118. aikido problem
  119. RS253 giant SE monoblock (Chinese)
  120. Plate chokes & Power chokes
  121. 10uF filter cap too small? PSU schematic inside
  122. HOT ROD DELUXE: CRACKLE...POP...what to do?
  123. converting Baldwin organ amp to guitar
  124. best amp for rock n roll
  125. quick question about tube relays
  126. Yeo's Simple EL84 with a twist
  127. ST-70 OPT, A-470 question
  128. meixing 805 tube amp problems
  129. Advice for NOOBie - Dad's Scott LK-72
  130. Peavey Valve King 112
  131. KT66 SE amp, grid current or not?
  132. 269EX in a champ?
  133. How do I achieve more output power?
  134. Driver stage load resistor
  135. More Edcor XSM10K/10K Specs
  136. DC filament
  137. driver stages
  138. Bay Area DIY is Cancelled Because....
  139. Is constant filament current better way to build amps?
  140. Next amp build - Trainwreck - Princeton - Deluxe ???
  141. Quicksilver M135 Output Transformers Color Code?
  142. Dynaco ST70 clone, tubes substitution question
  143. caddocks mk132: has anyone used them for tube projects?
  144. DIY Pro Audio Recording Gear - La2a, Pultec, more.
  145. size of filtering caps SS vs OTL tube
  146. Current rating and tube current draw
  147. NUCLON -- My first hybrid guitar amp
  148. PP splitters again
  149. preamp with output trannies.
  150. Is it the 6SN7 or me?
  151. My Kind of Guitar Tuner
  152. Regulating tube amp power supply - can Iget away with a simpler CLC filtering scheme?
  153. Manufacture date of 6SN7s
  154. simple 12AU7 cathode follower
  155. How's your bench, what's your favorite setup/tool ?
  156. Siemens H42 AM/FM receiver circuit diagram?
  157. 429A load lines
  158. Mu-stage on output
  159. My new project, 2 x KT88 60W amp
  160. Tube Amp Hum
  161. Modding MEIXING MC 3008
  162. crate vc 2110 schematic ???
  163. Will this work for an EL84 push pull?
  164. "Integrated" or "stand alone"
  165. Heater to cathode voltage limits in cascodes???
  166. some Japanese can help me? (OPT trafo winding)
  167. Quicksilver 8417 a class C amp?
  168. Newcomer, where to start?
  169. Benefits of Potted Output Transformers
  170. Transformer question
  171. 6AW6A, Unloaded
  172. Aikido PSU help
  173. Rectifier that doesn't need own filament supply?
  174. Plate to Cathode Cap -- what's this??
  175. Need Help Understanding/Optimising a Schematic
  176. Simple basic question quick
  177. problem on thorens PR15 (strange filaments circuity)
  178. My 1W 5687 SE Direct Coupled Power Amp
  179. VT-25 linestage + step-down trafo
  180. What to do with 803's
  181. Newbie: KT88 amp info needed
  182. 805 tube amp, uProcessor controlled
  183. Class A Tube BJT Hybrid
  184. John Broskie's enhanced T8
  185. Audio Research SP6 E
  186. André Charlin anybody got his Tube Amp
  187. Info needed - Shuguang SG120-C Integrated Amp
  188. Help with 6SN7 preamp
  189. 12b4 vs. aikido linestage
  190. KT88/6550 as Triode
  191. 6AU6WA triode connected as a line amp?
  192. A few basic noobie questions.
  193. Which connector for PSU/chassis B+ supply?
  194. Quad II-Forty schematic ?:
  195. Audio Research Manuals
  196. I was thinking
  197. silicon or tube rectifier?
  198. Is this OK for the Etude Preamp?
  199. gary pimm's latest self-biasing CCS circuit
  200. 46 tube pre
  201. BEZ T9B Intermittent problem
  202. Heathkit W-5M rebuild
  203. Masco MA25N repair
  204. Sunday's Project
  205. 5881- 6l6
  206. Gas-Rectifier power supply
  207. How to get more juice out of this shunt regulator
  208. Resistors on DHT Cathode
  209. Noise floor rise on heathkit W4-AMs when power supply transformers were swapped
  210. Help me finish up this SET project (multiple questions / ramblings)
  211. This Is Cool !!
  212. output bias servo
  213. Looking for dual power triodes.
  214. Need advice selecting a 2A3 design
  215. Feedback basics
  216. tubalizer..
  217. The 6b4g
  218. 6N6P Operating Points
  219. Lundahl+EL84 PP+concertina+input stage
  220. Help wanted for a truly loco project. (A Tube--gainclone hybrid guitar amp!)
  221. Looking for circuit of SE amp. for Eimac 100TH
  222. Counterpoint Sa-3000 Circuit Diagram
  223. compressor Faiirchild 670 DIY
  224. How much headroom for a choke---to stop it from humming?
  225. Bay Area Diy Festival
  226. Using Eagle for Tubes designs
  227. Worst that could happen?
  228. Identifying output tx.
  229. Small pre
  230. Cathode follower driver
  231. comment on this B+ supply
  232. ODD TUBES, what to look for?
  233. 2A3 SE and Edcorp tranny
  234. Differential amplifier with 12AX7
  235. Bogen Challenger CH30 Amplifier
  236. do I need to use a heatsink on a DN2540 in a B+ supply?
  237. Transformer, 10K 1:1 - which one?
  238. Where to find Blackgate Caps?
  239. Passive Pre-Amp causes huge power loss?
  240. Rubbish fluorescent tubes: Eterna Lighting (UK), GE (US)
  241. Melos TM90 ST schematic?
  242. My first tube preamplifier:)
  243. Opinions on the Conrad Johnson MV75 amplifier please.
  244. Favorite Tubes
  245. SS replacement for 83 tube ?
  246. AMC CVT 2030 Output Transformer.
  247. 6-ohm speaker to tube amp
  248. What tubes share the pinout with the 5687?
  249. SMPS for B+ discussion
  250. Building a 200W+ bass amp

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