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  1. JFET swap in microphone - 2N3819, 2SK170
  2. Need help with a vintage stereo!
  3. CRCRC vs. LCLCLC which is better and why?
  4. Mosfet power follower (Pavel Macura)
  5. 990 discrete opamp
  6. How to cancel odd order harmonics?
  7. The big assembly question!
  8. how much power can i get fro IRFZ44?
  9. Simple OCL AMP
  10. HELP! Need Amp Info
  11. What to do with my leftover Toshibas
  12. No left channel on Technics SA-303
  13. 20W amp optimized for 1 Ohm load
  14. inverting / non-inverting op-amp circuits
  15. High quality amp with 2sk1530 and 2sj21
  16. External PS for Leach amp.
  17. Problems with bias setting
  18. Regulator output impedance
  19. Amplifier with LM317/337 voltage regs.
  20. JVC JA-S55 amp troubleshooting
  21. 3W Pure Class-A AMP
  22. Technics SU-X101 amp schematic wanted, and other questions
  23. how much power my amplifier out ?!
  24. Please comment this design
  25. E-Follower & P37 By Rod -- It's cool.
  26. rectifier upgrade for sub amp?
  27. Harman Kardon HK-6900
  28. amp problem please help
  29. Threshold 400 A
  30. Wrong heatsink for TO-39
  31. Anyone use output stage like this
  32. diy power amp
  33. nap 180 service
  34. Rotel RA-812 schematic needed
  35. Instant voltage and current circuit?
  36. So, what does crossover distortion sound like?
  37. help design SE preamp with mosfet buffer and step-up transformer.
  38. My first amp!!
  39. Looking for 2SK60 class A AMP circuit diagram
  40. diy lab supply
  41. Please comment my pcb P3a
  42. Optimal snubbers
  43. Cambridge Audio C500 & P500
  44. mixer or pre-amp
  45. Class A heatsinking, or heatsinking in general!
  46. Comment on my pre-amp schematic?
  47. Finished first amp!
  48. Reverse engineering a servo controller?
  49. Looking for APT40xxBN Experience and Comments
  50. need input on SS buffer w/transformer line amp.
  51. PSL Ve2400 vith problem
  52. hitachi ha-330 modification
  53. diy electronics
  54. Cambridge Audio Azur 540A amp noisy (50Hz?)
  55. pioneer A-501R amp
  56. schematic needed
  57. Looking for PS AUDIO Elite schematics
  58. subwoofer amp
  59. LCAudio Zeta Amplifier
  60. Electrocompaniet, how does it sound?
  61. Rod Elliot P68-2 PSU Recomendations
  62. Looking for Rotel RC970BX MII schematic
  63. Looking for Rotel RC970bx mkII schematic
  64. effect of unbalanced rails?
  65. Soldering the caps
  66. Acoustic Research Amplifier (solid state) help needed
  67. Nad NAD C162+C172 diagram(schematics)
  68. Electrostatic damage on transistors
  69. Resistor/Inductor at Leach Output
  70. Hum
  71. crest audio power amplifier
  72. GAS116 & GAS 117 substitutes? HELP!
  73. Circuit boards, another dirty way to do!
  74. Help with some SWR Schematics
  75. Former audio snob humbled; Pioneer SX-1010 question
  76. Tone controls
  77. Open collector npn output
  78. Yamaha rx-550 question.
  79. optimizing the VBE multiplier
  80. Tech help needed Threshold S/300 MkII optical bias
  81. Recommendations for re-capping McIntosh MA-5100
  82. Voltage doubler
  83. Looking for Takahashi cct
  84. 300W PA Schematics
  85. Bedini 25/25 vs Bedini Classic 100 Vintage
  86. Help..Spice models for 2SA1215 2SC2921
  87. HK AVR45 suggestions needed
  88. DIY Front Panel !!
  89. DC offset in my p3a- need help!
  90. 4558 and TL072 question
  91. LTP bias current
  92. NAD 314 Bias Current/DC Offset
  93. LM3886 (or similar) as voltage regulator
  94. Extra/unused solder pads on the Leach Foil pattern?
  95. Technics SU-600 Amp
  96. ATX (computer) power supplies for power amp
  97. Please comment "my" design
  98. Denon Pma-860
  99. Which Amplifier for a DIY 12" Subwoofer?
  100. Luxman M03 schematic
  101. Leach output transistors
  102. 12-14V power supply questions.
  103. 5.1 Input on Rotel RSP-980
  104. Parasound P/HP-850
  105. Soundcraftsman MA5002 Bias
  106. Class A dilemma
  107. Denon PMA-2000
  108. Substituting capacitor in MA-5100
  109. safe operating area
  110. DC on output
  111. help with input pot please
  112. Realistic and Sony Receiver Questions
  113. The Leach Amp - Power supply?
  114. NAD 320BEE and speaker cable question
  115. Can I replace Samhwa caps in PS with smaller value ones of better quality ?
  116. Crimson Elektrik power amps
  117. Mac MA-5100 - Is this a capacitor coupled design?
  118. locate DVD player schematics
  119. Carver TFM Schematics?
  120. what is your favorite loundness or pre-amp or anykind of circuit that make good sound
  121. Minimal (passive?) linestage
  122. I am sleepy again
  123. Book to learn about amp building
  124. Generic Open Chassis Design ...
  125. onsemi "thermaltrak" transistors
  126. Help!
  127. The best Amplifier circuit ever made.
  128. Qsc Ex4000
  129. So, guys... Should I recap?
  130. EMI Interference In Rod Elliott's DOZ Amplifier
  131. DELTA PA-34A Power Amplifier by Jan Dupont
  132. Converting Nikko Alpha 230 to Leach Low TIM
  133. What happened to aussieamplifiers?
  134. dvd player tweaking hurdles
  135. Marantz 300DC Problem
  136. 25W MOSFET amp problem :(
  137. Kr-950
  138. Over voltage on capacitor
  139. stability
  140. Need comments and suggestions for this amp.
  141. Burn-in Leach amp??
  142. fet output stage stability
  143. Vbe Thermal Coupling Issue
  144. Zero DC Offset
  145. Very cheap toroid??
  146. Will sound reasonable?... this amplifier is amps lab cousin
  147. Music plays after amp is turned off.
  148. Adding pre-outs into a processor with separate internal amp?
  149. Thoughts Concerning Cordell, Otala, and Gilbert papers
  150. to-92 general purpose
  151. NAD 2200 REPAIR PartS Needed?
  152. amp help needed in Milwaukee
  153. NAD fuses, slow blow or fast blow?
  154. PP MOSFET amp with float supplies
  155. Let's Get Back To Bryston
  156. NAD Power Envelope question
  157. Replacement driver boards for the Quad 303
  158. Marantz KI difference?
  159. Tone Control, from inside the hell to your home
  160. 2sc5200/2sa1493 With +/- 78vdc ?
  161. what can i substitute the MJL4302A and the MJL4281A with?
  162. Old MOSFET schema. Opinions?
  163. Ampslab c200 soon finished.
  164. painted heatsinks & insulating washers
  165. Make your own temp. controlled iron
  166. Technics SA-300: dead FM tuner?
  167. Recommendation for regulator?
  168. Help with MOSFET selection
  169. McIntosh 5100 - worth restoration?
  170. Infinity BU1 amplified subwoofer. problems.
  171. B&K ST 125.2 Modification Project
  172. Dual Toroidals????
  173. A push-pull differential stage- why not?
  174. Mark Levinson No 27 Problem
  175. Discussion about Pioneer cheap DVD player
  176. Micro Precision serie 5 Linedriver
  177. Power Supply Design Question
  178. So, can I run a Hafler DH-500 without the lid?
  179. ca339e comparitor as phaze shift????
  180. Shielding with aluminum foil;)
  181. Need Schematics for ROTEL RDA-975
  182. I got this schematic of a power amp, would like comments
  183. Pioneer SA-1000 Service Manual
  184. Voltage conversion?
  185. traps in to3 construction
  186. Bias info with regard to Denon Amps
  187. LM6172 sound
  188. Looking for schematics...got a lot of parts...
  189. Non-feedback parametric linearisation in FETs
  190. Freeeee Ebook
  191. transistor "Ft" what about it?
  192. This paper...anyone?
  193. 3 constant current source questions
  194. Luxman SQ202 Hum on RH channel
  195. Need help on designing aspects of audio amplifier
  196. What contributes to DC-offset?
  197. PSU caps for Leach amp
  198. Where do you buy your components?
  199. power fets, bias, gain matching & other stuff.
  200. Why does the APT Holman preamp sound so good?
  201. power transistor output capacitance
  202. differential input stage
  203. Input Selector
  204. Merry...Merry Christmas Folks...
  205. Special for moderators and Jason, that let me be in peace all this ending year
  206. J-FET preamp/DI vs tubes
  207. MOSFETS on the same heatsink?
  208. Citation 12 Substitute Transistors
  209. denon 480r schematics
  210. Class A power follower
  211. Class A amp all over :) Need PSU!
  212. protecting high-powered mosfet amplifiers..
  213. You know you're a junkie when...
  214. Sansui G-7500 schematic needed
  215. Playmaster Pro Series 3 reviews
  216. Mark Levinson JC-2 problem ( broken Line driver )
  217. V. linear drivers and fast - 200v Vceo, 120mA
  218. Yamaha A-560 Amplifier
  219. Desperatly Need schematic for Pioneer A-77X
  220. Trying to fix my Cyrus II amp
  221. Doubling (or more) output stage voltage capability.
  222. Capacitor Voltage Rating
  223. Arcam Alpha 9 integrated amplifier
  224. transistor substitutes
  225. Newbie Question
  226. Novice in need of help
  227. Adcom GFA-585 went bad - calling Adcom experts
  228. My new design
  229. Transformer – shield wiring
  230. So, I ebayed this Hafler DH-110 preamp...
  231. Looking for schematic for Cal Sigma II Dac
  232. Survey - Actual Amp Temperatures
  233. Please Help with ADCOM GFA-555 II
  234. Hafler DH 220 amp sounds like tin can
  235. DC Adapter question for a Guitar Amp??
  236. JRC opamps
  237. Pioneer SA-8800
  238. pure n channel schem. help needed
  239. schematic for H/K citation 11
  240. convert voltage to resistance?
  241. Have transformer, will build
  242. ASR Active mainscable
  243. bridging two amps x4 power ?
  244. Share my methods to repair/build a discrete power amp
  245. Recommendations for stereo amplifier ?
  246. NEC Transistor? b965 / d1288 - 70W System
  247. I had some informs that this is a Harman Kardon schematic
  248. Would this work as a volume control???
  249. Classes of operation vs. sound quality
  250. any use for velodyne plate amps?