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  1. Digital Attenuator for Balanced Lines?
  2. Onkyo R1 AV amp
  3. GFA 5503 Bias adjustment
  4. Onkyo Dynamic Four 800 - Schematic for modification
  5. yamaha A-1020 amp
  6. Changing my old VFA designs into ONE-BEND CFA plus Current Drives
  7. H/K Citation Sixteen Parts
  8. Rotel Rb890 hum on one Channel
  9. Sansui AU555-A D001/D002 replacment diode?
  10. Diamond Wilson CFP - Roger Amp
  11. DIY Buffer Pre Amplifier with phono stage
  12. Single ended class a build. noob question
  13. Experimentations on Regulators
  14. Perfect Stranger - Innovative Amplifier
  15. Pioneer amp board with IC drivers.
  16. Technics SA-80 distorted right channel
  17. Please help educate - T300 & VSSA level matching
  18. transformer amplifier zero feedback
  19. What do these resistors do? :(
  20. Watercooled HEXFET Power Amplifier
  21. A simple question about performance
  22. bridge adapter
  23. CROWN DC-300A SERIES II RESTORATION
  24. OLDER PIONEER PREMIER Specific Amp line
  25. Resurrecting a BGW 750B
  26. Op-amp swapping MC330789 to OPA627
  27. Sudgen p28 Bias current
  28. Rotel service manual biasing...
  29. My Blameless
  30. Amber Series 70 Fuses
  31. Bi-Pak AL60
  32. yamaha M35 amp led meter
  33. Yamaha M45 amp led circuit schematic
  34. Does this amplified topology have a name
  35. The affect of mismatched impedance
  36. Acurus A150
  37. trace acoustic ta100r repair help
  38. New to forum - Buzzing noise
  39. resistor colour code
  40. help!!!!
  41. Arcam Alpha 10 overheating issues
  42. TEAC AG 4200 relays?
  43. Unique CFA 120/230W amp
  44. Direct NFB Pure Amplifier 2
  45. Crimson CS 620D
  46. Sansui 350
  47. Driving a 4-8R speaker with a single transistor Class A amp?
  48. Turbo 225 amplifier (SGS)
  49. excelinear 2014
  50. CFP OUTPUT 100W*2 MX100 MY design
  51. Amp starts humming when volume pot is attached
  52. Cannot get 2SK170 2SJ74 Spice model to pass more than 0.4mA
  53. Second opinions on balanced inputs
  54. Availability of "current-drive" amplifiers as commercial products
  55. Amp with unfamiliar input stage - DC offset problem
  56. 2SJ118/2SK413 schematics
  57. Making a bipolar electrolytic capacitor
  58. Sap Transistors?
  59. Twisting transformer secondary's
  60. Adcom gfa-555ii killed my speakers
  61. Crown DC-300A No Mono/Dual Switch
  62. Repairing surround channels on a Marantz RS3559
  63. can I have 5 m cable, quad 35 to 405 amp
  64. NAD 3125 Circuit Diagram
  65. pioneer stereo reciever sx-1080
  66. common value of output stage noise in uV?
  67. Dynacord L2400 output board schematic
  68. Bryston 3B Restoration problems
  69. Protect Headphone Amplifier Output from Accidental Arcing of Electrostatic Driver
  70. Prototype Printed Circuit Board vendors
  71. Where to find Toshiba Semiconductors today (2SK389, 2SJ109, 2SK170, etc?
  72. Musical Fidelity A1000
  73. Parasound 2250 Amp Schematics?
  74. Crown Macro Reference Bias calibration
  75. DC blocking caps in modern amplifiers?
  76. Replacing capacitors in the tuner area
  77. Source of 680nF 2% caps.
  78. first amplifier build. will my schematic work?
  79. kenwood basic M2 problem
  80. Looking for Soundcraft Spirit FX8 Schematic/Info
  81. Which combinations of transistors should thermally track
  82. Technics SA-300: dead FM tuner
  83. Krell KMA-160 schematic and biasing info needed
  84. MCU from NAD T-752
  85. gemini vintage amp need info please
  86. Help with TeddyReg
  87. NAD S300 normal operating temperature?
  88. Harmon Kardon HK650
  89. MARK LEVINSON 33X series caps..Whats best???
  90. Adding a second input channel to my diy amp. how to?
  91. Circuit for a 2.1 system?
  92. Bush Amplifier Distorted.
  93. Yamaha CA 510 Meter lights
  94. Amps' power - which is real the bottleneck ?
  95. Sansui AU 555a One dead channel ? No power ?
  96. Pioneer SA-610 mods to improve sound quality
  97. Honeybadger or Gainclone?
  98. It seems I only use 1W of amp power.. Can it be right?
  99. Increasing slew rate and stability
  100. The most bizzare problem I have come across
  101. Aragon 8008 x 3 blew my woofers?
  102. Phase Linear
  103. Yamaha M-85 Bias Voltage Does Not Increase In "Auto A" Switch Position
  104. Rather simple high quality reference amp (~200W @ 4 ohm, VFA)
  105. What is Monaural, Dual mono, stereo in fact?
  106. Why does CFP output require much less bias than EF?
  107. No Input Select at Kenwood's Integrated Amp A-1001
  108. Quad 405 - DCD–Mod4 (Keith Snook)
  109. output transformer for multiple amps
  110. Connecting amplifier chasis to earth ground, but not amplifier ground
  111. QSC1700
  112. Pioneer SA-610 - bypass the Pre-amp stage?
  113. Upgrading Transistors?
  114. Toroid Field being picked up by input transformer. Way to block this?
  115. free bryston 4b resurrection
  116. 2SA798
  117. universal Jfet source follower
  118. Amp advice prior to purchase -
  119. Which amp shall I build?
  120. Audio transformer (LT700) behaviour [newb]
  121. homemade amplifier
  122. Sansui R-70 bias
  123. Kenwood KA5700
  124. A question about a Linar 10 amp
  125. OP Amp oscillator sine wave too sharp
  126. tectronic SA-535
  127. A dive into the past
  128. Hafler 9303 transformer
  129. Debug my hum
  130. Transistors
  131. Yamaha rx-v373 making me pull my hair out!
  132. Servicing an amp: fuses, regulators, emitter resistors
  133. Pro Amplifier hum
  134. Pioneer Power Amplifier GM-6300T, No Output
  135. Storage of a vintage receiver
  136. project idea. custom amp board in old receiver
  137. Strange problems with transistors
  138. Newbie working with a IRS2092
  139. Ampzilla 2000
  140. Simple repair for a subwoofer amplifier? (ASW3000)
  141. Speaker Impedance - Class A Current
  142. 2SK216/2SJ79 Spice models for Multisim?
  143. News. Three-band repeater with a crossover in the economy class A.
  144. Commercial Solid State Amps with jumper controlled Modes "without NFB" and "with NFB"
  145. Yamaha CA 510
  146. KSA-250 changing mains voltage
  147. "Vintage" Rotel RX-875 Troubleshooting
  148. Luxman L100 muting circuit
  149. Replacement remote for HK6350R
  150. SS amplifier kit equivalent to Dynaco ST70?
  151. Amplifier Problems
  152. Thermal switch?
  153. bad clipping
  154. OPA2604: Worthwhile using better regs than LM317/337?
  155. B&K cs-115 preamp help
  156. Kenwood Model Eleven GX Bulb Replacement
  157. Hiraga woodfront.
  158. Strap a Cap
  159. Which amplifier kit to build
  160. Encapsulated insulated hex freds
  161. need help finding a replacement for a JRC 074D quade fet op amp
  162. Yamaha RX-V390 - Circuit Protection
  163. arcam alpha 10
  164. autobias via temperature and LUT
  165. RAISERAMP - a special transformer based
  166. Speaker relays
  167. 4 stage amplifier instabilities
  168. 2SB654 = MJ2955? N0!
  169. Marantz pm-64 mk2 missing factory caps ?
  170. gfa-555 ii transistors
  171. Esound integrated amp
  172. Marantz PM-66SE KI - bin or repair?
  173. Invention for bias stability
  174. Hybrid Repeater in economy class A.
  175. Backwards WILSON current mirror?
  176. separate psu chassis for SS amp ?
  177. Linn Intek noisy channel
  178. Phase problem/question
  179. Yamaha CA-610II
  180. Threshold Cas-2
  181. my new amp b.m.c cs2
  182. overdriven OP
  183. Luxman L-450 Transistor Getting Hot
  184. Marantz pm-64 mk2
  185. Transrotary Input Selector anti oxidation Yamaha AX, Pioneer A series type
  186. Amplifier Frequency Turnover. When does it apply?!
  187. Amplifier Frequency Turnover. When does it apply?!
  188. preamp low volume and humming - Krell KRC-2
  189. polyester caps for power supply Any good?
  190. Experiencing a mysterious hum in a Parasound HCA-2200 II.
  191. Bridge Amplifier
  192. Improved OP
  193. NAD 3020 preamp channel broken
  194. Powered Subwoofer won't turn on...Please help!
  195. EXCELINEAR MKII
  196. Is it possible to bridge two subwoofer plate amps between circuit boards??
  197. mosfet question.
  198. Leak Delta 70
  199. Slightly abnormal question about a shaker
  200. I am a newbie and need help on the value of the potentiometer
  201. My CFA project
  202. SIT Transistors for audio ?
  203. rf problem
  204. Building amp small series...
  205. A stupid question about using capacitors to clean pre amp rails
  206. Speakers pop sounds (spikes) when fridge kicks in,Arcam Alpha 3
  207. Need help figuring out/finding a rotary switch
  208. Opto-controlled bias
  209. At what point is slew rate performance is inaudible?
  210. K176 + J50 pairing, any problems?
  211. Single-ended amplifier with balanced input on the lamp GM70
  212. Historic amps documented
  213. Luxman L-435 idle current
  214. Jeff Rowland Model 7 III help
  215. QUAD 405 (mod): DC clamp and ground schema
  216. Harman Kardon HK630 Amplifier Service Manual
  217. quad 303
  218. Technics SU-V470 out of balance
  219. NAIM NAIT 5 Mod Help
  220. Yamaha A-1000 Oscillates
  221. Suggest me a low-power Class A amp
  222. Sudden P28 Schematics
  223. db technologies Opera 405D
  224. amp to replace Crimson 40 watt modules
  225. help with Onkyo 7.1 repair
  226. US / EU - power
  227. Sanken fake transistors
  228. Help with Rotel voltage reconfiguration
  229. Linearising OPS
  230. CRT noise in amp
  231. Why do some designed specify braided cables?
  232. Attenuator before or after graphic? DSE A2760
  233. GAS Son of Ampzilla channel cut out
  234. Solid state amp w. magnetics
  235. NAD 2100 - single channel Hum Problem
  236. Yamaha Limitter
  237. Cap vs DC servo in global NFB tests
  238. Replacement for D01 6A4 rectifier diodes on Rega Mira
  239. Son's Docking Station Project?
  240. Limiter section
  241. NAD T955 Output Devices
  242. Hiraga class a 30 w amplifier
  243. McCormack DNA-0.5 schematics
  244. Change/Bypass High Pass Filter?
  245. Minimum rec. resistor wattage?
  246. Looking for a good quality preamp
  247. Bias current through class AB output pair
  248. How Much Amplifier Power Do i need?
  249. Crate PA-4 Distortion
  250. 120hz spikes at amp output, crappy layout or something else?

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