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  1. Some cathode follower questions
  2. rectifier voltage drop
  3. Anyone please explain"What is an A1,A2 in SE amp?
  4. Interesting link for guitar amps
  5. What is the correct plate voltage in this circuit?
  6. Any1 have an Osmond PCB library for tubes?
  7. best type cap for preamp PSU
  8. Steve Bench PP loadlines
  9. single Diode power supply?
  10. Spice Error
  11. Anyone have a Welborne Labs amp?
  12. Please help out a Noobie...
  13. wellborne labs
  14. best schematic designer for tubes?
  15. hum in 1 channel
  16. B+ time delay relay
  17. something is wrong with the shunt regulator
  18. Suggestions for a high end tube amp kit
  19. Conrad Johnson PV 7 problem
  20. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  21. Power supply dilemma
  22. Transformer Placement 5E3
  23. Please help: no sound and blown fuse
  24. sparking Output transformer In Webcor 14x240 Amp
  25. Designing my very first tube amp...
  26. Diode bridge for Valve Buffered GC
  27. 6S41S (6C41C) Amplifier
  28. audio research sp11 upgrade help please
  29. The good, the bad, and the ugly OTL amplifiers
  30. Z2b tube rectifier
  31. Sparks inside GZ34
  32. Help with EV4417 6cm5/EL36
  33. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  34. My Cornet2 Tube Phono Preamp
  35. bright switch to bias circuit?
  36. Regulated AC...thought some of you might be interested
  37. Aikido PSU - integrated or standalone???
  38. Frank Philipse's tube site
  39. World' smallest GM-70 set
  40. Question on output hum on tube amp?
  41. Aikido Preamp
  42. Argh!!
  43. EL84 bias point
  44. Coupling cap rating
  45. Regulated power supply
  46. outstanding book??
  47. when the datasheet says "vertical mounting: up or down", does it mean...
  48. half wave rectifier will not saturate transformer core?
  49. Did I get in over my head too soon?!?
  50. Parallel output tubes
  51. Dropping filament volts/ L-W ramblings
  52. Rogers Cadet III Power problem ?
  53. about bi-cap
  54. HOT Iron ?
  55. how to set current in G Pimm's latest self-biasing CCS circuit?
  56. Low pass active tube crossover
  57. Ecological recycling amplifier (6CU6)
  58. Need ECF80 / 6BL8 tube spice 3f4 model
  59. Capacitor above chassis
  60. PS Help
  61. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  62. Transmitter tubes
  63. Power Supply Construction
  64. what are the advantages of double core output transformers vs EI ?
  65. What is a reasonable amount ripple voltage for a 300B?
  66. "Old Like" sound transformer with a Tube !
  67. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  68. P-P resistance oddity
  69. Tube preamp vs. solid state
  70. 6l6 penthode triode
  71. Rising hum when turntable is plugged into preamp ??
  72. 6SL7 or 6SL7GT for broken Tubalizer
  73. Aikido PCB and AC filaments.
  74. Help with 300b proyect.
  75. 6P14P Amp Scratch Build
  76. 6GH8 - A Little Off?
  77. design and personality
  78. An all DHT push pull amp.
  79. Junk Pile Linestage
  80. need tube rectifier info
  81. Question on voltages
  82. How to change this design from penthode to triode or UL
  83. what glass-ware program?
  84. aikido 12b4 input 6sn7 output???
  85. GZ34 and temperature
  86. schematic search crate bv-60
  87. First Guitar Amp Help
  88. power supply for my single ended amp
  89. transmitter tube amp
  90. resistor and capacitor values for Aikido preamp
  91. need opinion on 2nd hand AF analyzers prices
  92. DH rectifier hookup.
  93. WE 310A vs. Russian 310A in WE91
  94. CRC PSU for preamp
  95. Question on the installation of LL1668 plate choke
  96. max plate voltage rating in tube datasheet
  97. Tube for a shunt voltage regulator
  98. choosing cap values for aikido
  99. Tubes in the Intermediate Stage
  100. c3m + 300b + miller capacitance
  101. How do I bias up a constant current series filament circuit?
  102. The perfect phono preamp.
  103. Got my 6BG6GA's last night
  104. Tubes4HiFi SP-6 preamp
  105. Stupid electrolytic cap question.......
  106. Shuguang 807s?
  107. LX-72A Sanity Check for Noooobie?
  108. Convert EL84 to 6V6? Anyone try this?
  109. PC96
  110. Ultrapath output transformers
  111. Grant RIAA phono with 12AX7/ECC83
  112. Tube VS SS voltage regulators - any advantages?
  113. Ra-a??
  114. Help with my el509 amp almost done but with one problem.
  115. McIntosh chassis help needed
  116. Tube Voltage Regulator Design
  117. DC Tube Amplifiers
  118. Coupling cap voltage rating
  119. Anyone experienced in the 76 tube?
  120. aikido thump
  121. bypassing preamp board in integrated amp
  122. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  123. is it really required to use carbon comp for grid stoppers?
  124. How much trickle current can fixed bias cathode batteries stand?
  125. Who is the administrator?
  126. LM329 as voltage reference in a CCS.
  127. Euridice Preamp with 5842 and LL1660
  128. Trans. alignments
  129. Audio Note M3 Kit modification
  130. Has anyone simulated an "Aikido" amplifier?
  131. Upgrading ST70 PS w/ SS question
  132. 6N1 Chinese tube and others
  133. 12AT7 Linestage design
  134. ECF80 instead of 7199
  135. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  136. 6922 vs 6SN7
  137. Transformer DCR's
  138. ferrite beads v. grid resistor
  139. What went wrong with my amp? Bass driver strange movement.
  140. Toccata Phono Preamp
  141. Drawbacks of Parafeed?
  142. aikido problem
  143. RS253 giant SE monoblock (Chinese)
  144. Plate chokes & Power chokes
  145. 10uF filter cap too small? PSU schematic inside
  146. HOT ROD DELUXE: CRACKLE...POP...what to do?
  147. converting Baldwin organ amp to guitar
  148. best amp for rock n roll
  149. quick question about tube relays
  150. Yeo's Simple EL84 with a twist
  151. ST-70 OPT, A-470 question
  152. meixing 805 tube amp problems
  153. Advice for NOOBie - Dad's Scott LK-72
  154. Peavey Valve King 112
  155. KT66 SE amp, grid current or not?
  156. 269EX in a champ?
  157. How do I achieve more output power?
  158. Driver stage load resistor
  159. More Edcor XSM10K/10K Specs
  160. DC filament
  161. driver stages
  162. Bay Area DIY is Cancelled Because....
  163. Is constant filament current better way to build amps?
  164. Next amp build - Trainwreck - Princeton - Deluxe ???
  165. Quicksilver M135 Output Transformers Color Code?
  166. Dynaco ST70 clone, tubes substitution question
  167. caddocks mk132: has anyone used them for tube projects?
  168. DIY Pro Audio Recording Gear - La2a, Pultec, more.
  169. size of filtering caps SS vs OTL tube
  170. Current rating and tube current draw
  171. NUCLON -- My first hybrid guitar amp
  172. PP splitters again
  173. preamp with output trannies.
  174. Is it the 6SN7 or me?
  175. My Kind of Guitar Tuner
  176. Regulating tube amp power supply - can Iget away with a simpler CLC filtering scheme?
  177. Manufacture date of 6SN7s
  178. simple 12AU7 cathode follower
  179. How's your bench, what's your favorite setup/tool ?
  180. Siemens H42 AM/FM receiver circuit diagram?
  181. 429A load lines
  182. Mu-stage on output
  183. My new project, 2 x KT88 60W amp
  184. Tube Amp Hum
  185. Modding MEIXING MC 3008
  186. crate vc 2110 schematic ???
  187. Will this work for an EL84 push pull?
  188. "Integrated" or "stand alone"
  189. Heater to cathode voltage limits in cascodes???
  190. some Japanese can help me? (OPT trafo winding)
  191. Quicksilver 8417 a class C amp?
  192. Newcomer, where to start?
  193. Benefits of Potted Output Transformers
  194. Transformer question
  195. 6AW6A, Unloaded
  196. Aikido PSU help
  197. Rectifier that doesn't need own filament supply?
  198. Plate to Cathode Cap -- what's this??
  199. Need Help Understanding/Optimising a Schematic
  200. Simple basic question quick
  201. problem on thorens PR15 (strange filaments circuity)
  202. My 1W 5687 SE Direct Coupled Power Amp
  203. VT-25 linestage + step-down trafo
  204. What to do with 803's
  205. Newbie: KT88 amp info needed
  206. 805 tube amp, uProcessor controlled
  207. Class A Tube BJT Hybrid
  208. John Broskie's enhanced T8
  209. Audio Research SP6 E
  210. André Charlin anybody got his Tube Amp
  211. Info needed - Shuguang SG120-C Integrated Amp
  212. Help with 6SN7 preamp
  213. 12b4 vs. aikido linestage
  214. KT88/6550 as Triode
  215. 6AU6WA triode connected as a line amp?
  216. A few basic noobie questions.
  217. Which connector for PSU/chassis B+ supply?
  218. Quad II-Forty schematic ?:
  219. Audio Research Manuals
  220. I was thinking
  221. silicon or tube rectifier?
  222. Is this OK for the Etude Preamp?
  223. gary pimm's latest self-biasing CCS circuit
  224. 46 tube pre
  225. BEZ T9B Intermittent problem
  226. Heathkit W-5M rebuild
  227. Masco MA25N repair
  228. Sunday's Project
  229. 5881- 6l6
  230. Gas-Rectifier power supply
  231. How to get more juice out of this shunt regulator
  232. Resistors on DHT Cathode
  233. Noise floor rise on heathkit W4-AMs when power supply transformers were swapped
  234. Help me finish up this SET project (multiple questions / ramblings)
  235. This Is Cool !!
  236. output bias servo
  237. Looking for dual power triodes.
  238. Need advice selecting a 2A3 design
  239. Feedback basics
  240. tubalizer..
  241. The 6b4g
  242. 6N6P Operating Points
  243. Lundahl+EL84 PP+concertina+input stage
  244. Help wanted for a truly loco project. (A Tube--gainclone hybrid guitar amp!)
  245. Looking for circuit of SE amp. for Eimac 100TH
  246. Counterpoint Sa-3000 Circuit Diagram
  247. compressor Faiirchild 670 DIY
  248. How much headroom for a choke---to stop it from humming?
  249. Bay Area Diy Festival
  250. Using Eagle for Tubes designs