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  1. E182CC substitution ?
  2. Face Plate Printing and Silk Screening
  3. Funky reading 12B4A?
  4. Sovtek 5Y3 Issues
  5. from lilliput to gargantua (just for fun)
  6. Formula for calculating HT voltage?
  7. DIY Headamp for Sennheiser-650?
  8. Nuera Tube Amps
  9. Amplifier identification
  10. Perfect tube regulator
  11. Value of grid leak resistor
  12. Comments on this circuit
  13. Just grabbed this AF mesuring equipement, Any infos before restauration is Welcome
  14. Heater current monitoring...
  15. on-off switch position in PSU
  16. A better LDO heater regulator
  17. Guitar Head Amp Schematic
  18. any feedback on Russian gas regulators like SG4S and etc.?
  19. Some cathode follower questions
  20. rectifier voltage drop
  21. Anyone please explain"What is an A1,A2 in SE amp?
  22. Interesting link for guitar amps
  23. What is the correct plate voltage in this circuit?
  24. Any1 have an Osmond PCB library for tubes?
  25. best type cap for preamp PSU
  26. Steve Bench PP loadlines
  27. single Diode power supply?
  28. Spice Error
  29. Anyone have a Welborne Labs amp?
  30. Please help out a Noobie...
  31. wellborne labs
  32. best schematic designer for tubes?
  33. hum in 1 channel
  34. B+ time delay relay
  35. something is wrong with the shunt regulator
  36. Suggestions for a high end tube amp kit
  37. Conrad Johnson PV 7 problem
  38. Math to calc optimal voltage of tube dac to match amp input sensitivity?
  39. Power supply dilemma
  40. Transformer Placement 5E3
  41. Please help: no sound and blown fuse
  42. sparking Output transformer In Webcor 14x240 Amp
  43. Designing my very first tube amp...
  44. Diode bridge for Valve Buffered GC
  45. 6S41S (6C41C) Amplifier
  46. audio research sp11 upgrade help please
  47. The good, the bad, and the ugly OTL amplifiers
  48. Z2b tube rectifier
  49. Sparks inside GZ34
  50. Help with EV4417 6cm5/EL36
  51. Guitar Amps, Overdrive Pedals, and Space Charged Tubes
  52. My Cornet2 Tube Phono Preamp
  53. bright switch to bias circuit?
  54. Regulated AC...thought some of you might be interested
  55. Aikido PSU - integrated or standalone???
  56. Frank Philipse's tube site
  57. World' smallest GM-70 set
  58. Question on output hum on tube amp?
  59. Aikido Preamp
  60. Argh!!
  61. EL84 bias point
  62. Coupling cap rating
  63. Regulated power supply
  64. outstanding book??
  65. when the datasheet says "vertical mounting: up or down", does it mean...
  66. half wave rectifier will not saturate transformer core?
  67. Did I get in over my head too soon?!?
  68. Parallel output tubes
  69. Dropping filament volts/ L-W ramblings
  70. Rogers Cadet III Power problem ?
  71. about bi-cap
  72. HOT Iron ?
  73. how to set current in G Pimm's latest self-biasing CCS circuit?
  74. Low pass active tube crossover
  75. Ecological recycling amplifier (6CU6)
  76. Need ECF80 / 6BL8 tube spice 3f4 model
  77. Capacitor above chassis
  78. PS Help
  79. Bogen-Stein! mx60a mx-60a mo100a mo-100a
  80. Transmitter tubes
  81. Power Supply Construction
  82. what are the advantages of double core output transformers vs EI ?
  83. What is a reasonable amount ripple voltage for a 300B?
  84. "Old Like" sound transformer with a Tube !
  85. I coined the phrase HIGH VIVIDITY, to differentiate our amps from High Fidelity ones
  86. P-P resistance oddity
  87. Tube preamp vs. solid state
  88. 6l6 penthode triode
  89. Rising hum when turntable is plugged into preamp ??
  90. 6SL7 or 6SL7GT for broken Tubalizer
  91. Aikido PCB and AC filaments.
  92. Help with 300b proyect.
  93. 6P14P Amp Scratch Build
  94. 6GH8 - A Little Off?
  95. design and personality
  96. An all DHT push pull amp.
  97. Junk Pile Linestage
  98. need tube rectifier info
  99. Question on voltages
  100. How to change this design from penthode to triode or UL
  101. what glass-ware program?
  102. aikido 12b4 input 6sn7 output???
  103. GZ34 and temperature
  104. schematic search crate bv-60
  105. First Guitar Amp Help
  106. power supply for my single ended amp
  107. transmitter tube amp
  108. resistor and capacitor values for Aikido preamp
  109. need opinion on 2nd hand AF analyzers prices
  110. DH rectifier hookup.
  111. WE 310A vs. Russian 310A in WE91
  112. CRC PSU for preamp
  113. Question on the installation of LL1668 plate choke
  114. max plate voltage rating in tube datasheet
  115. Tube for a shunt voltage regulator
  116. choosing cap values for aikido
  117. Tubes in the Intermediate Stage
  118. c3m + 300b + miller capacitance
  119. How do I bias up a constant current series filament circuit?
  120. The perfect phono preamp.
  121. Got my 6BG6GA's last night
  122. Tubes4HiFi SP-6 preamp
  123. Stupid electrolytic cap question.......
  124. Shuguang 807s?
  125. LX-72A Sanity Check for Noooobie?
  126. Convert EL84 to 6V6? Anyone try this?
  127. PC96
  128. Ultrapath output transformers
  129. Grant RIAA phono with 12AX7/ECC83
  130. Tube VS SS voltage regulators - any advantages?
  131. Ra-a??
  132. Help with my el509 amp almost done but with one problem.
  133. McIntosh chassis help needed
  134. Tube Voltage Regulator Design
  135. DC Tube Amplifiers
  136. Coupling cap voltage rating
  137. Anyone experienced in the 76 tube?
  138. aikido thump
  139. bypassing preamp board in integrated amp
  140. Mallory FP 2x30/500 for Scott LX-72 - NOOB
  141. is it really required to use carbon comp for grid stoppers?
  142. How much trickle current can fixed bias cathode batteries stand?
  143. Who is the administrator?
  144. LM329 as voltage reference in a CCS.
  145. Euridice Preamp with 5842 and LL1660
  146. Trans. alignments
  147. Audio Note M3 Kit modification
  148. Has anyone simulated an "Aikido" amplifier?
  149. Upgrading ST70 PS w/ SS question
  150. 6N1 Chinese tube and others
  151. 12AT7 Linestage design
  152. ECF80 instead of 7199
  153. Modifying a tube tester into a curve tracer (oscilloscope X/Y outputs) ?
  154. 6922 vs 6SN7
  155. Transformer DCR's
  156. ferrite beads v. grid resistor
  157. What went wrong with my amp? Bass driver strange movement.
  158. Toccata Phono Preamp
  159. Drawbacks of Parafeed?
  160. aikido problem
  161. RS253 giant SE monoblock (Chinese)
  162. Plate chokes & Power chokes
  163. 10uF filter cap too small? PSU schematic inside
  164. HOT ROD DELUXE: CRACKLE...POP...what to do?
  165. converting Baldwin organ amp to guitar
  166. best amp for rock n roll
  167. quick question about tube relays
  168. Yeo's Simple EL84 with a twist
  169. ST-70 OPT, A-470 question
  170. meixing 805 tube amp problems
  171. Advice for NOOBie - Dad's Scott LK-72
  172. Peavey Valve King 112
  173. KT66 SE amp, grid current or not?
  174. 269EX in a champ?
  175. How do I achieve more output power?
  176. Driver stage load resistor
  177. More Edcor XSM10K/10K Specs
  178. DC filament
  179. driver stages
  180. Bay Area DIY is Cancelled Because....
  181. Is constant filament current better way to build amps?
  182. Next amp build - Trainwreck - Princeton - Deluxe ???
  183. Quicksilver M135 Output Transformers Color Code?
  184. Dynaco ST70 clone, tubes substitution question
  185. caddocks mk132: has anyone used them for tube projects?
  186. DIY Pro Audio Recording Gear - La2a, Pultec, more.
  187. size of filtering caps SS vs OTL tube
  188. Current rating and tube current draw
  189. NUCLON -- My first hybrid guitar amp
  190. PP splitters again
  191. preamp with output trannies.
  192. Is it the 6SN7 or me?
  193. My Kind of Guitar Tuner
  194. Regulating tube amp power supply - can Iget away with a simpler CLC filtering scheme?
  195. Manufacture date of 6SN7s
  196. simple 12AU7 cathode follower
  197. How's your bench, what's your favorite setup/tool ?
  198. Siemens H42 AM/FM receiver circuit diagram?
  199. 429A load lines
  200. Mu-stage on output
  201. My new project, 2 x KT88 60W amp
  202. Tube Amp Hum
  203. Modding MEIXING MC 3008
  204. crate vc 2110 schematic ???
  205. Will this work for an EL84 push pull?
  206. "Integrated" or "stand alone"
  207. Heater to cathode voltage limits in cascodes???
  208. some Japanese can help me? (OPT trafo winding)
  209. Quicksilver 8417 a class C amp?
  210. Newcomer, where to start?
  211. Benefits of Potted Output Transformers
  212. Transformer question
  213. 6AW6A, Unloaded
  214. Aikido PSU help
  215. Rectifier that doesn't need own filament supply?
  216. Plate to Cathode Cap -- what's this??
  217. Need Help Understanding/Optimising a Schematic
  218. Simple basic question quick
  219. problem on thorens PR15 (strange filaments circuity)
  220. My 1W 5687 SE Direct Coupled Power Amp
  221. VT-25 linestage + step-down trafo
  222. What to do with 803's
  223. Newbie: KT88 amp info needed
  224. 805 tube amp, uProcessor controlled
  225. Class A Tube BJT Hybrid
  226. John Broskie's enhanced T8
  227. Audio Research SP6 E
  228. André Charlin anybody got his Tube Amp
  229. Info needed - Shuguang SG120-C Integrated Amp
  230. Help with 6SN7 preamp
  231. 12b4 vs. aikido linestage
  232. KT88/6550 as Triode
  233. 6AU6WA triode connected as a line amp?
  234. A few basic noobie questions.
  235. Which connector for PSU/chassis B+ supply?
  236. Quad II-Forty schematic ?:
  237. Audio Research Manuals
  238. I was thinking
  239. silicon or tube rectifier?
  240. Is this OK for the Etude Preamp?
  241. gary pimm's latest self-biasing CCS circuit
  242. 46 tube pre
  243. BEZ T9B Intermittent problem
  244. Heathkit W-5M rebuild
  245. Masco MA25N repair
  246. Sunday's Project
  247. 5881- 6l6
  248. Gas-Rectifier power supply
  249. How to get more juice out of this shunt regulator
  250. Resistors on DHT Cathode

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