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  1. Yamaha PC-2002M
  2. Marantz 1090 shorted output stage
  3. Audiophiler Capacitor Red compared to any Mundorf Supreme as coupling cap?
  4. curious observation re: Hafler TA-1100
  5. LME49810 minimum safe working voltage not according to the datasheet
  6. Experience with Savoy G3
  7. Rotel RA-840BX3 repair?
  8. Help hooking up transformer
  9. Hafler dh200 2sk134 mosfet transistor
  10. pioneer sx1010 zener diode voltage
  11. Adcom GFA 5400 questions
  12. Measuring Power Amp Output Impedance
  13. Skytec PA-200, smoke and volume not working
  14. NAD 7155 Preamp help needed
  15. cyrus 8v2 with buzz after 2 hours
  16. Wilson-Cfp by Stee
  17. Problem with DC offset and stability
  18. Sansui AU-517 Capacitor Recommendation
  19. Acurus RL11
  20. Kenwood KR-V55r DC present on both channels. A lot.
  21. Pioneer sx 1010 power problem
  22. Onkyo M-504 Upgrade to LED lights? Help!
  23. Subwoofer amp - too much bass!
  24. Help to fix C-Audio GB402 Amplifier
  25. NAD C320 fixed (another protection circuit problem)
  26. If replacing differential input pair; also replace current source transistor?
  27. One single output pair per channel is a good thing ?
  28. Quad 99 system transformer hum
  29. calculating the resistor & capacitor values in class a amplifier
  30. Lots of noise when input is unconnected
  31. Mosfet source follower output impedence
  32. Harman/Kardon 430 - Need help with strange powerup noise
  33. Gallien Krueger 800RB Hi Channel Problem
  34. Transistor heatsink question
  35. lme49810 DC servo circuit.
  36. 300w power amp
  37. What can cause noise in this design?
  38. SYBELIUS 3 plus - ultimate high design
  39. Help repairing Sub AMP
  40. Sansui Diamond Differential PA Simulation and possible build
  41. Krell KV300i input selector board removal
  42. Replacment transistor for hitachi 2sc2b1 ? Its in a Sansui AU 555 A
  43. Yamaha M45 low pwr issue pretty interesting.
  44. Brocken amp..noise like thunder
  45. Rails Decoupled SE Amplifier
  46. DVD/CD output and power amp input specification.
  47. Bose 550 Receiver Has DC on outputs
  48. AEQ model 250 schematic
  49. Transformer coupling instead of cap?
  50. Krell 200S
  51. HH Electronic VX-150 MosFet
  52. Power supply for power amp.
  53. Making a VCO. Design help needed.
  54. DoZ in a Hafler 220? Or. . .?
  55. Roland RE-201 tapeecho improvements
  56. Burmester 933 mk2 Clone from Jims Audio
  57. Harman-Kardon hk6200 repair
  58. Needed - Service Manual For Luxman L-110
  59. Powering front end of amplifier
  60. New Project: The Silver Fox
  61. Dual Diff Amp Question
  62. What can I build with these? 4 pairs of 2SC5200/2SA1943
  63. LM 3915 mode change
  64. Pioneer SX-1080, after re-cap problem w. center voltage & idle current
  65. CFA Enhancements
  66. Peavey PV900 schematics
  67. Power amp ideas.
  68. Got taken on yasmaha m45
  69. Marlboro PA chip conversion question
  70. Diagrams required
  71. Another 100W hifi amp
  72. Repair help needed - Creek Destiny
  73. Power Supply for PGA2310 project
  74. yamaha b1 amp
  75. Parasound HCA-800II and C/PT-600
  76. Peavey Delta Blues Reverb Mod
  77. Help, In need of Service Manual for Cambridge Azur 640A V2
  78. NAD 7250PE Repair From Driving a Shorted Voice Coil?
  79. Need help with college project - Trying to build a 3 stage amp but I'm lost
  80. Digital Attenuator for Balanced Lines?
  81. Onkyo R1 AV amp
  82. GFA 5503 Bias adjustment
  83. Onkyo Dynamic Four 800 - Schematic for modification
  84. yamaha A-1020 amp
  85. Changing my old VFA designs into ONE-BEND CFA plus Current Drives
  86. H/K Citation Sixteen Parts
  87. Rotel Rb890 hum on one Channel
  88. Sansui AU555-A D001/D002 replacment diode?
  89. Diamond Wilson CFP - Roger Amp
  90. DIY Buffer Pre Amplifier with phono stage
  91. Single ended class a build. noob question
  92. Experimentations on Regulators
  93. Perfect Stranger - Innovative Amplifier
  94. Pioneer amp board with IC drivers.
  95. Technics SA-80 distorted right channel
  96. Please help educate - T300 & VSSA level matching
  97. transformer amplifier zero feedback
  98. What do these resistors do? :(
  99. Watercooled HEXFET Power Amplifier
  100. A simple question about performance
  101. bridge adapter
  102. CROWN DC-300A SERIES II RESTORATION
  103. OLDER PIONEER PREMIER Specific Amp line
  104. Resurrecting a BGW 750B
  105. Op-amp swapping MC330789 to OPA627
  106. Sudgen p28 Bias current
  107. Rotel service manual biasing...
  108. My Blameless
  109. Amber Series 70 Fuses
  110. Bi-Pak AL60
  111. yamaha M35 amp led meter
  112. Yamaha M45 amp led circuit schematic
  113. Does this amplified topology have a name
  114. The affect of mismatched impedance
  115. Acurus A150
  116. trace acoustic ta100r repair help
  117. New to forum - Buzzing noise
  118. resistor colour code
  119. help!!!!
  120. Arcam Alpha 10 overheating issues
  121. TEAC AG 4200 relays?
  122. Unique CFA 120/230W amp
  123. Direct NFB Pure Amplifier 2
  124. Crimson CS 620D
  125. Sansui 350
  126. Driving a 4-8R speaker with a single transistor Class A amp?
  127. Turbo 225 amplifier (SGS)
  128. excelinear 2014
  129. CFP OUTPUT 100W*2 MX100 MY design
  130. Amp starts humming when volume pot is attached
  131. Cannot get 2SK170 2SJ74 Spice model to pass more than 0.4mA
  132. Second opinions on balanced inputs
  133. Availability of "current-drive" amplifiers as commercial products
  134. Amp with unfamiliar input stage - DC offset problem
  135. 2SJ118/2SK413 schematics
  136. Making a bipolar electrolytic capacitor
  137. Sap Transistors?
  138. Twisting transformer secondary's
  139. Adcom gfa-555ii killed my speakers
  140. Crown DC-300A No Mono/Dual Switch
  141. Repairing surround channels on a Marantz RS3559
  142. Behringer GM110
  143. can I have 5 m cable, quad 35 to 405 amp
  144. NAD 3125 Circuit Diagram
  145. pioneer stereo reciever sx-1080
  146. common value of output stage noise in uV?
  147. Dynacord L2400 output board schematic
  148. Bryston 3B Restoration problems
  149. Protect Headphone Amplifier Output from Accidental Arcing of Electrostatic Driver
  150. Prototype Printed Circuit Board vendors
  151. Where to find Toshiba Semiconductors today (2SK389, 2SJ109, 2SK170, etc?
  152. Musical Fidelity A1000
  153. Parasound 2250 Amp Schematics?
  154. Crown Macro Reference Bias calibration
  155. DC blocking caps in modern amplifiers?
  156. Replacing capacitors in the tuner area
  157. Source of 680nF 2% caps.
  158. first amplifier build. will my schematic work?
  159. kenwood basic M2 problem
  160. Looking for Soundcraft Spirit FX8 Schematic/Info
  161. Which combinations of transistors should thermally track
  162. Technics SA-300: dead FM tuner
  163. Krell KMA-160 schematic and biasing info needed
  164. MCU from NAD T-752
  165. gemini vintage amp need info please
  166. Help with TeddyReg
  167. NAD S300 normal operating temperature?
  168. Harmon Kardon HK650
  169. MARK LEVINSON 33X series caps..Whats best???
  170. Adding a second input channel to my diy amp. how to?
  171. Circuit for a 2.1 system?
  172. Bush Amplifier Distorted.
  173. Yamaha CA 510 Meter lights
  174. Amps' power - which is real the bottleneck ?
  175. Sansui AU 555a One dead channel ? No power ?
  176. Pioneer SA-610 mods to improve sound quality
  177. Honeybadger or Gainclone?
  178. It seems I only use 1W of amp power.. Can it be right?
  179. Increasing slew rate and stability
  180. The most bizzare problem I have come across
  181. Aragon 8008 x 3 blew my woofers?
  182. Phase Linear
  183. Yamaha M-85 Bias Voltage Does Not Increase In "Auto A" Switch Position
  184. Rather simple high quality reference amp (~200W @ 4 ohm, VFA)
  185. What is Monaural, Dual mono, stereo in fact?
  186. Why does CFP output require much less bias than EF?
  187. No Input Select at Kenwood's Integrated Amp A-1001
  188. Quad 405 - DCD–Mod4 (Keith Snook)
  189. output transformer for multiple amps
  190. Connecting amplifier chasis to earth ground, but not amplifier ground
  191. QSC1700
  192. Pioneer SA-610 - bypass the Pre-amp stage?
  193. Upgrading Transistors?
  194. Toroid Field being picked up by input transformer. Way to block this?
  195. free bryston 4b resurrection
  196. 2SA798
  197. universal Jfet source follower
  198. Amp advice prior to purchase -
  199. Which amp shall I build?
  200. Audio transformer (LT700) behaviour [newb]
  201. homemade amplifier
  202. Sansui R-70 bias
  203. Kenwood KA5700
  204. A question about a Linar 10 amp
  205. OP Amp oscillator sine wave too sharp
  206. tectronic SA-535
  207. A dive into the past
  208. Hafler 9303 transformer
  209. Debug my hum
  210. Transistors
  211. Yamaha rx-v373 making me pull my hair out!
  212. Servicing an amp: fuses, regulators, emitter resistors
  213. Pro Amplifier hum
  214. Pioneer Power Amplifier GM-6300T, No Output
  215. Storage of a vintage receiver
  216. project idea. custom amp board in old receiver
  217. Strange problems with transistors
  218. Newbie working with a IRS2092
  219. Ampzilla 2000
  220. Simple repair for a subwoofer amplifier? (ASW3000)
  221. Speaker Impedance - Class A Current
  222. 2SK216/2SJ79 Spice models for Multisim?
  223. News. Three-band repeater with a crossover in the economy class A.
  224. Commercial Solid State Amps with jumper controlled Modes "without NFB" and "with NFB"
  225. Yamaha CA 510
  226. KSA-250 changing mains voltage
  227. "Vintage" Rotel RX-875 Troubleshooting
  228. Luxman L100 muting circuit
  229. Replacement remote for HK6350R
  230. SS amplifier kit equivalent to Dynaco ST70?
  231. Amplifier Problems
  232. Thermal switch?
  233. bad clipping
  234. OPA2604: Worthwhile using better regs than LM317/337?
  235. B&K cs-115 preamp help
  236. Kenwood Model Eleven GX Bulb Replacement
  237. Hiraga woodfront.
  238. Strap a Cap
  239. Which amplifier kit to build
  240. Encapsulated insulated hex freds
  241. need help finding a replacement for a JRC 074D quade fet op amp
  242. Yamaha RX-V390 - Circuit Protection
  243. arcam alpha 10
  244. autobias via temperature and LUT
  245. RAISERAMP - a special transformer based
  246. Speaker relays
  247. 4 stage amplifier instabilities
  248. 2SB654 = MJ2955? N0!
  249. Marantz pm-64 mk2 missing factory caps ?
  250. Marshall 8100 buzz

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