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  1. best schematic designer for tubes?
  2. hum in 1 channel
  3. B+ time delay relay
  4. something is wrong with the shunt regulator
  5. Suggestions for a high end tube amp kit
  6. Conrad Johnson PV 7 problem
  7. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  8. Power supply dilemma
  9. Transformer Placement 5E3
  10. Please help: no sound and blown fuse
  11. sparking Output transformer In Webcor 14x240 Amp
  12. Designing my very first tube amp...
  13. Diode bridge for Valve Buffered GC
  14. 6S41S (6C41C) Amplifier
  15. audio research sp11 upgrade help please
  16. The good, the bad, and the ugly OTL amplifiers
  17. Z2b tube rectifier
  18. Sparks inside GZ34
  19. Help with EV4417 6cm5/EL36
  20. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  21. My Cornet2 Tube Phono Preamp
  22. bright switch to bias circuit?
  23. Regulated AC...thought some of you might be interested
  24. Aikido PSU - integrated or standalone???
  25. Frank Philipse's tube site
  26. World' smallest GM-70 set
  27. Question on output hum on tube amp?
  28. Aikido Preamp
  29. Argh!!
  30. EL84 bias point
  31. Coupling cap rating
  32. Regulated power supply
  33. outstanding book??
  34. when the datasheet says "vertical mounting: up or down", does it mean...
  35. half wave rectifier will not saturate transformer core?
  36. Did I get in over my head too soon?!?
  37. Parallel output tubes
  38. Dropping filament volts/ L-W ramblings
  39. Rogers Cadet III Power problem ?
  40. about bi-cap
  41. HOT Iron ?
  42. how to set current in G Pimm's latest self-biasing CCS circuit?
  43. Low pass active tube crossover
  44. Ecological recycling amplifier (6CU6)
  45. Need ECF80 / 6BL8 tube spice 3f4 model
  46. Capacitor above chassis
  47. PS Help
  48. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  49. Transmitter tubes
  50. Power Supply Construction
  51. what are the advantages of double core output transformers vs EI ?
  52. What is a reasonable amount ripple voltage for a 300B?
  53. "Old Like" sound transformer with a Tube !
  54. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  55. P-P resistance oddity
  56. Tube preamp vs. solid state
  57. 6l6 penthode triode
  58. Rising hum when turntable is plugged into preamp ??
  59. 6SL7 or 6SL7GT for broken Tubalizer
  60. Aikido PCB and AC filaments.
  61. Help with 300b proyect.
  62. 6P14P Amp Scratch Build
  63. 6GH8 - A Little Off?
  64. design and personality
  65. An all DHT push pull amp.
  66. Junk Pile Linestage
  67. need tube rectifier info
  68. Question on voltages
  69. How to change this design from penthode to triode or UL
  70. what glass-ware program?
  71. aikido 12b4 input 6sn7 output???
  72. GZ34 and temperature
  73. schematic search crate bv-60
  74. First Guitar Amp Help
  75. power supply for my single ended amp
  76. transmitter tube amp
  77. resistor and capacitor values for Aikido preamp
  78. need opinion on 2nd hand AF analyzers prices
  79. DH rectifier hookup.
  80. WE 310A vs. Russian 310A in WE91
  81. CRC PSU for preamp
  82. Question on the installation of LL1668 plate choke
  83. max plate voltage rating in tube datasheet
  84. Tube for a shunt voltage regulator
  85. choosing cap values for aikido
  86. Tubes in the Intermediate Stage
  87. c3m + 300b + miller capacitance
  88. How do I bias up a constant current series filament circuit?
  89. The perfect phono preamp.
  90. Got my 6BG6GA's last night
  91. Tubes4HiFi SP-6 preamp
  92. Stupid electrolytic cap question.......
  93. Shuguang 807s?
  94. LX-72A Sanity Check for Noooobie?
  95. Convert EL84 to 6V6? Anyone try this?
  96. PC96
  97. Ultrapath output transformers
  98. Grant RIAA phono with 12AX7/ECC83
  99. Tube VS SS voltage regulators - any advantages?
  100. Ra-a??
  101. Help with my el509 amp almost done but with one problem.
  102. McIntosh chassis help needed
  103. Tube Voltage Regulator Design
  104. DC Tube Amplifiers
  105. Coupling cap voltage rating
  106. Anyone experienced in the 76 tube?
  107. aikido thump
  108. bypassing preamp board in integrated amp
  109. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  110. is it really required to use carbon comp for grid stoppers?
  111. How much trickle current can fixed bias cathode batteries stand?
  112. Who is the administrator?
  113. LM329 as voltage reference in a CCS.
  114. Euridice Preamp with 5842 and LL1660
  115. Trans. alignments
  116. Audio Note M3 Kit modification
  117. Has anyone simulated an "Aikido" amplifier?
  118. Upgrading ST70 PS w/ SS question
  119. 6N1 Chinese tube and others
  120. 12AT7 Linestage design
  121. ECF80 instead of 7199
  122. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  123. 6922 vs 6SN7
  124. Transformer DCR's
  125. ferrite beads v. grid resistor
  126. What went wrong with my amp? Bass driver strange movement.
  127. Toccata Phono Preamp
  128. Drawbacks of Parafeed?
  129. aikido problem
  130. RS253 giant SE monoblock (Chinese)
  131. Plate chokes & Power chokes
  132. 10uF filter cap too small? PSU schematic inside
  133. HOT ROD DELUXE: CRACKLE...POP...what to do?
  134. converting Baldwin organ amp to guitar
  135. best amp for rock n roll
  136. quick question about tube relays
  137. Yeo's Simple EL84 with a twist
  138. ST-70 OPT, A-470 question
  139. meixing 805 tube amp problems
  140. Advice for NOOBie - Dad's Scott LK-72
  141. Peavey Valve King 112
  142. KT66 SE amp, grid current or not?
  143. 269EX in a champ?
  144. How do I achieve more output power?
  145. Driver stage load resistor
  146. More Edcor XSM10K/10K Specs
  147. DC filament
  148. driver stages
  149. Bay Area DIY is Cancelled Because....
  150. Is constant filament current better way to build amps?
  151. Next amp build - Trainwreck - Princeton - Deluxe ???
  152. Quicksilver M135 Output Transformers Color Code?
  153. Dynaco ST70 clone, tubes substitution question
  154. caddocks mk132: has anyone used them for tube projects?
  155. DIY Pro Audio Recording Gear - La2a, Pultec, more.
  156. size of filtering caps SS vs OTL tube
  157. Current rating and tube current draw
  158. NUCLON -- My first hybrid guitar amp
  159. PP splitters again
  160. preamp with output trannies.
  161. Is it the 6SN7 or me?
  162. My Kind of Guitar Tuner
  163. Regulating tube amp power supply - can Iget away with a simpler CLC filtering scheme?
  164. Manufacture date of 6SN7s
  165. simple 12AU7 cathode follower
  166. How's your bench, what's your favorite setup/tool ?
  167. Siemens H42 AM/FM receiver circuit diagram?
  168. 429A load lines
  169. Mu-stage on output
  170. My new project, 2 x KT88 60W amp
  171. Tube Amp Hum
  172. Modding MEIXING MC 3008
  173. crate vc 2110 schematic ???
  174. Will this work for an EL84 push pull?
  175. "Integrated" or "stand alone"
  176. Heater to cathode voltage limits in cascodes???
  177. some Japanese can help me? (OPT trafo winding)
  178. Quicksilver 8417 a class C amp?
  179. Newcomer, where to start?
  180. Benefits of Potted Output Transformers
  181. Transformer question
  182. 6AW6A, Unloaded
  183. Aikido PSU help
  184. Rectifier that doesn't need own filament supply?
  185. Plate to Cathode Cap -- what's this??
  186. Need Help Understanding/Optimising a Schematic
  187. Simple basic question quick
  188. problem on thorens PR15 (strange filaments circuity)
  189. My 1W 5687 SE Direct Coupled Power Amp
  190. VT-25 linestage + step-down trafo
  191. What to do with 803's
  192. Newbie: KT88 amp info needed
  193. 805 tube amp, uProcessor controlled
  194. Class A Tube BJT Hybrid
  195. John Broskie's enhanced T8
  196. Audio Research SP6 E
  197. André Charlin anybody got his Tube Amp
  198. Info needed - Shuguang SG120-C Integrated Amp
  199. Help with 6SN7 preamp
  200. 12b4 vs. aikido linestage
  201. KT88/6550 as Triode
  202. 6AU6WA triode connected as a line amp?
  203. A few basic noobie questions.
  204. Which connector for PSU/chassis B+ supply?
  205. Quad II-Forty schematic ?:
  206. Audio Research Manuals
  207. I was thinking
  208. silicon or tube rectifier?
  209. Is this OK for the Etude Preamp?
  210. gary pimm's latest self-biasing CCS circuit
  211. 46 tube pre
  212. BEZ T9B Intermittent problem
  213. Heathkit W-5M rebuild
  214. Masco MA25N repair
  215. Sunday's Project
  216. 5881- 6l6
  217. Gas-Rectifier power supply
  218. How to get more juice out of this shunt regulator
  219. Resistors on DHT Cathode
  220. Noise floor rise on heathkit W4-AMs when power supply transformers were swapped
  221. Help me finish up this SET project (multiple questions / ramblings)
  222. This Is Cool !!
  223. output bias servo
  224. Looking for dual power triodes.
  225. Need advice selecting a 2A3 design
  226. Feedback basics
  227. tubalizer..
  228. The 6b4g
  229. 6N6P Operating Points
  230. Lundahl+EL84 PP+concertina+input stage
  231. Help wanted for a truly loco project. (A Tube--gainclone hybrid guitar amp!)
  232. Looking for circuit of SE amp. for Eimac 100TH
  233. Counterpoint Sa-3000 Circuit Diagram
  234. compressor Faiirchild 670 DIY
  235. How much headroom for a choke---to stop it from humming?
  236. Bay Area Diy Festival
  237. Using Eagle for Tubes designs
  238. Worst that could happen?
  239. Identifying output tx.
  240. Small pre
  241. Cathode follower driver
  242. comment on this B+ supply
  243. ODD TUBES, what to look for?
  244. 2A3 SE and Edcorp tranny
  245. Differential amplifier with 12AX7
  246. Bogen Challenger CH30 Amplifier
  247. do I need to use a heatsink on a DN2540 in a B+ supply?
  248. Transformer, 10K 1:1 - which one?
  249. Where to find Blackgate Caps?
  250. Passive Pre-Amp causes huge power loss?

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