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  1. cyrus 8v2 with buzz after 2 hours
  2. Wilson-Cfp by Stee
  3. Problem with DC offset and stability
  4. Sansui AU-517 Capacitor Recommendation
  5. Acurus RL11
  6. Kenwood KR-V55r DC present on both channels. A lot.
  7. Pioneer sx 1010 power problem
  8. Onkyo M-504 Upgrade to LED lights? Help!
  9. Subwoofer amp - too much bass!
  10. Help to fix C-Audio GB402 Amplifier
  11. NAD C320 fixed (another protection circuit problem)
  12. If replacing differential input pair; also replace current source transistor?
  13. One single output pair per channel is a good thing ?
  14. Quad 99 system transformer hum
  15. calculating the resistor & capacitor values in class a amplifier
  16. Lots of noise when input is unconnected
  17. Mosfet source follower output impedence
  18. Harman/Kardon 430 - Need help with strange powerup noise
  19. Transistor heatsink question
  20. lme49810 DC servo circuit.
  21. 300w power amp
  22. What can cause noise in this design?
  23. SYBELIUS 3 plus - ultimate high design
  24. Help repairing Sub AMP
  25. Sansui Diamond Differential PA Simulation and possible build
  26. Krell KV300i input selector board removal
  27. Replacment transistor for hitachi 2sc2b1 ? Its in a Sansui AU 555 A
  28. Yamaha M45 low pwr issue pretty interesting.
  29. Brocken amp..noise like thunder
  30. Rails Decoupled SE Amplifier
  31. DVD/CD output and power amp input specification.
  32. Bose 550 Receiver Has DC on outputs
  33. AEQ model 250 schematic
  34. Transformer coupling instead of cap?
  35. Krell 200S
  36. HH Electronic VX-150 MosFet
  37. Power supply for power amp.
  38. Making a VCO. Design help needed.
  39. DoZ in a Hafler 220? Or. . .?
  40. Burmester 933 mk2 Clone from Jims Audio
  41. Harman-Kardon hk6200 repair
  42. Needed - Service Manual For Luxman L-110
  43. Powering front end of amplifier
  44. New Project: The Silver Fox
  45. Dual Diff Amp Question
  46. What can I build with these? 4 pairs of 2SC5200/2SA1943
  47. LM 3915 mode change
  48. Pioneer SX-1080, after re-cap problem w. center voltage & idle current
  49. CFA Enhancements
  50. Power amp ideas.
  51. Got taken on yasmaha m45
  52. Marlboro PA chip conversion question
  53. Diagrams required
  54. Another 100W hifi amp
  55. Repair help needed - Creek Destiny
  56. Power Supply for PGA2310 project
  57. yamaha b1 amp
  58. Parasound HCA-800II and C/PT-600
  59. Help, In need of Service Manual for Cambridge Azur 640A V2
  60. NAD 7250PE Repair From Driving a Shorted Voice Coil?
  61. Need help with college project - Trying to build a 3 stage amp but I'm lost
  62. Digital Attenuator for Balanced Lines?
  63. Onkyo R1 AV amp
  64. GFA 5503 Bias adjustment
  65. Onkyo Dynamic Four 800 - Schematic for modification
  66. yamaha A-1020 amp
  67. Changing my old VFA designs into ONE-BEND CFA plus Current Drives
  68. H/K Citation Sixteen Parts
  69. Rotel Rb890 hum on one Channel
  70. Sansui AU555-A D001/D002 replacment diode?
  71. Diamond Wilson CFP - Roger Amp
  72. DIY Buffer Pre Amplifier with phono stage
  73. Single ended class a build. noob question
  74. Experimentations on Regulators
  75. Perfect Stranger - Innovative Amplifier
  76. Pioneer amp board with IC drivers.
  77. Technics SA-80 distorted right channel
  78. Please help educate - T300 & VSSA level matching
  79. transformer amplifier zero feedback
  80. What do these resistors do? :(
  81. Watercooled HEXFET Power Amplifier
  82. A simple question about performance
  83. bridge adapter
  84. CROWN DC-300A SERIES II RESTORATION
  85. OLDER PIONEER PREMIER Specific Amp line
  86. Resurrecting a BGW 750B
  87. Op-amp swapping MC330789 to OPA627
  88. Sudgen p28 Bias current
  89. Rotel service manual biasing...
  90. My Blameless
  91. Amber Series 70 Fuses
  92. Bi-Pak AL60
  93. yamaha M35 amp led meter
  94. Yamaha M45 amp led circuit schematic
  95. Does this amplified topology have a name
  96. The affect of mismatched impedance
  97. Acurus A150
  98. trace acoustic ta100r repair help
  99. New to forum - Buzzing noise
  100. resistor colour code
  101. help!!!!
  102. Arcam Alpha 10 overheating issues
  103. TEAC AG 4200 relays?
  104. Unique CFA 120/230W amp
  105. Direct NFB Pure Amplifier 2
  106. Crimson CS 620D
  107. Sansui 350
  108. Driving a 4-8R speaker with a single transistor Class A amp?
  109. Turbo 225 amplifier (SGS)
  110. excelinear 2014
  111. CFP OUTPUT 100W*2 MX100 MY design
  112. Amp starts humming when volume pot is attached
  113. Cannot get 2SK170 2SJ74 Spice model to pass more than 0.4mA
  114. Second opinions on balanced inputs
  115. Availability of "current-drive" amplifiers as commercial products
  116. Amp with unfamiliar input stage - DC offset problem
  117. 2SJ118/2SK413 schematics
  118. Making a bipolar electrolytic capacitor
  119. Sap Transistors?
  120. Twisting transformer secondary's
  121. Adcom gfa-555ii killed my speakers
  122. Crown DC-300A No Mono/Dual Switch
  123. Repairing surround channels on a Marantz RS3559
  124. can I have 5 m cable, quad 35 to 405 amp
  125. NAD 3125 Circuit Diagram
  126. pioneer stereo reciever sx-1080
  127. common value of output stage noise in uV?
  128. Dynacord L2400 output board schematic
  129. Bryston 3B Restoration problems
  130. Protect Headphone Amplifier Output from Accidental Arcing of Electrostatic Driver
  131. Prototype Printed Circuit Board vendors
  132. Where to find Toshiba Semiconductors today (2SK389, 2SJ109, 2SK170, etc?
  133. Musical Fidelity A1000
  134. Parasound 2250 Amp Schematics?
  135. Crown Macro Reference Bias calibration
  136. DC blocking caps in modern amplifiers?
  137. Replacing capacitors in the tuner area
  138. Source of 680nF 2% caps.
  139. first amplifier build. will my schematic work?
  140. kenwood basic M2 problem
  141. Looking for Soundcraft Spirit FX8 Schematic/Info
  142. Which combinations of transistors should thermally track
  143. Technics SA-300: dead FM tuner
  144. Krell KMA-160 schematic and biasing info needed
  145. MCU from NAD T-752
  146. gemini vintage amp need info please
  147. Help with TeddyReg
  148. NAD S300 normal operating temperature?
  149. Harmon Kardon HK650
  150. MARK LEVINSON 33X series caps..Whats best???
  151. Adding a second input channel to my diy amp. how to?
  152. Circuit for a 2.1 system?
  153. Bush Amplifier Distorted.
  154. Yamaha CA 510 Meter lights
  155. Amps' power - which is real the bottleneck ?
  156. Sansui AU 555a One dead channel ? No power ?
  157. Pioneer SA-610 mods to improve sound quality
  158. Honeybadger or Gainclone?
  159. It seems I only use 1W of amp power.. Can it be right?
  160. Increasing slew rate and stability
  161. The most bizzare problem I have come across
  162. Aragon 8008 x 3 blew my woofers?
  163. Phase Linear
  164. Yamaha M-85 Bias Voltage Does Not Increase In "Auto A" Switch Position
  165. Rather simple high quality reference amp (~200W @ 4 ohm, VFA)
  166. What is Monaural, Dual mono, stereo in fact?
  167. Why does CFP output require much less bias than EF?
  168. No Input Select at Kenwood's Integrated Amp A-1001
  169. Quad 405 - DCD–Mod4 (Keith Snook)
  170. output transformer for multiple amps
  171. Connecting amplifier chasis to earth ground, but not amplifier ground
  172. QSC1700
  173. Pioneer SA-610 - bypass the Pre-amp stage?
  174. Upgrading Transistors?
  175. Toroid Field being picked up by input transformer. Way to block this?
  176. free bryston 4b resurrection
  177. 2SA798
  178. universal Jfet source follower
  179. Amp advice prior to purchase -
  180. Which amp shall I build?
  181. Audio transformer (LT700) behaviour [newb]
  182. homemade amplifier
  183. Sansui R-70 bias
  184. Kenwood KA5700
  185. A question about a Linar 10 amp
  186. OP Amp oscillator sine wave too sharp
  187. tectronic SA-535
  188. A dive into the past
  189. Hafler 9303 transformer
  190. Debug my hum
  191. Transistors
  192. Yamaha rx-v373 making me pull my hair out!
  193. Servicing an amp: fuses, regulators, emitter resistors
  194. Pro Amplifier hum
  195. Pioneer Power Amplifier GM-6300T, No Output
  196. Storage of a vintage receiver
  197. project idea. custom amp board in old receiver
  198. Strange problems with transistors
  199. Newbie working with a IRS2092
  200. Ampzilla 2000
  201. Simple repair for a subwoofer amplifier? (ASW3000)
  202. Speaker Impedance - Class A Current
  203. 2SK216/2SJ79 Spice models for Multisim?
  204. News. Three-band repeater with a crossover in the economy class A.
  205. Commercial Solid State Amps with jumper controlled Modes "without NFB" and "with NFB"
  206. Yamaha CA 510
  207. KSA-250 changing mains voltage
  208. "Vintage" Rotel RX-875 Troubleshooting
  209. Luxman L100 muting circuit
  210. Replacement remote for HK6350R
  211. SS amplifier kit equivalent to Dynaco ST70?
  212. Amplifier Problems
  213. Thermal switch?
  214. bad clipping
  215. OPA2604: Worthwhile using better regs than LM317/337?
  216. B&K cs-115 preamp help
  217. Kenwood Model Eleven GX Bulb Replacement
  218. Hiraga woodfront.
  219. Strap a Cap
  220. Which amplifier kit to build
  221. Encapsulated insulated hex freds
  222. need help finding a replacement for a JRC 074D quade fet op amp
  223. Yamaha RX-V390 - Circuit Protection
  224. arcam alpha 10
  225. autobias via temperature and LUT
  226. RAISERAMP - a special transformer based
  227. Speaker relays
  228. 4 stage amplifier instabilities
  229. 2SB654 = MJ2955? N0!
  230. Marantz pm-64 mk2 missing factory caps ?
  231. gfa-555 ii transistors
  232. Esound integrated amp
  233. Marantz PM-66SE KI - bin or repair?
  234. Invention for bias stability
  235. Hybrid Repeater in economy class A.
  236. Backwards WILSON current mirror?
  237. separate psu chassis for SS amp ?
  238. Linn Intek noisy channel
  239. Phase problem/question
  240. Yamaha CA-610II
  241. Threshold Cas-2
  242. my new amp b.m.c cs2
  243. overdriven OP
  244. Luxman L-450 Transistor Getting Hot
  245. Marantz pm-64 mk2
  246. Transrotary Input Selector anti oxidation Yamaha AX, Pioneer A series type
  247. Amplifier Frequency Turnover. When does it apply?!
  248. Amplifier Frequency Turnover. When does it apply?!
  249. preamp low volume and humming - Krell KRC-2
  250. polyester caps for power supply Any good?

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