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  1. Watercooled HEXFET Power Amplifier
  2. A simple question about performance
  3. bridge adapter
  4. CROWN DC-300A SERIES II RESTORATION
  5. OLDER PIONEER PREMIER Specific Amp line
  6. Resurrecting a BGW 750B
  7. Op-amp swapping MC330789 to OPA627
  8. Sudgen p28 Bias current
  9. Rotel service manual biasing...
  10. My Blameless
  11. Amber Series 70 Fuses
  12. Bi-Pak AL60
  13. yamaha M35 amp led meter
  14. Yamaha M45 amp led circuit schematic
  15. Does this amplified topology have a name
  16. The affect of mismatched impedance
  17. Acurus A150
  18. trace acoustic ta100r repair help
  19. New to forum - Buzzing noise
  20. resistor colour code
  21. help!!!!
  22. Arcam Alpha 10 overheating issues
  23. TEAC AG 4200 relays?
  24. Unique CFA 120/230W amp
  25. Direct NFB Pure Amplifier 2
  26. Crimson CS 620D
  27. Sansui 350
  28. Driving a 4-8R speaker with a single transistor Class A amp?
  29. Turbo 225 amplifier (SGS)
  30. excelinear 2014
  31. CFP OUTPUT 100W*2 MX100 MY design
  32. Amp starts humming when volume pot is attached
  33. Cannot get 2SK170 2SJ74 Spice model to pass more than 0.4mA
  34. Second opinions on balanced inputs
  35. Availability of "current-drive" amplifiers as commercial products
  36. Amp with unfamiliar input stage - DC offset problem
  37. 2SJ118/2SK413 schematics
  38. Making a bipolar electrolytic capacitor
  39. Sap Transistors?
  40. Twisting transformer secondary's
  41. Adcom gfa-555ii killed my speakers
  42. Crown DC-300A No Mono/Dual Switch
  43. Repairing surround channels on a Marantz RS3559
  44. Behringer GM110
  45. can I have 5 m cable, quad 35 to 405 amp
  46. NAD 3125 Circuit Diagram
  47. pioneer stereo reciever sx-1080
  48. common value of output stage noise in uV?
  49. Dynacord L2400 output board schematic
  50. Bryston 3B Restoration problems
  51. Protect Headphone Amplifier Output from Accidental Arcing of Electrostatic Driver
  52. Prototype Printed Circuit Board vendors
  53. Where to find Toshiba Semiconductors today (2SK389, 2SJ109, 2SK170, etc?
  54. Musical Fidelity A1000
  55. Parasound 2250 Amp Schematics?
  56. Crown Macro Reference Bias calibration
  57. DC blocking caps in modern amplifiers?
  58. Replacing capacitors in the tuner area
  59. Source of 680nF 2% caps.
  60. first amplifier build. will my schematic work?
  61. kenwood basic M2 problem
  62. Looking for Soundcraft Spirit FX8 Schematic/Info
  63. Which combinations of transistors should thermally track
  64. Technics SA-300: dead FM tuner
  65. Krell KMA-160 schematic and biasing info needed
  66. MCU from NAD T-752
  67. gemini vintage amp need info please
  68. Help with TeddyReg
  69. NAD S300 normal operating temperature?
  70. Harmon Kardon HK650
  71. MARK LEVINSON 33X series caps..Whats best???
  72. Adding a second input channel to my diy amp. how to?
  73. Circuit for a 2.1 system?
  74. Bush Amplifier Distorted.
  75. Yamaha CA 510 Meter lights
  76. Amps' power - which is real the bottleneck ?
  77. Sansui AU 555a One dead channel ? No power ?
  78. Pioneer SA-610 mods to improve sound quality
  79. Honeybadger or Gainclone?
  80. It seems I only use 1W of amp power.. Can it be right?
  81. Increasing slew rate and stability
  82. The most bizzare problem I have come across
  83. Aragon 8008 x 3 blew my woofers?
  84. Phase Linear
  85. Yamaha M-85 Bias Voltage Does Not Increase In "Auto A" Switch Position
  86. Rather simple high quality reference amp (~200W @ 4 ohm, VFA)
  87. What is Monaural, Dual mono, stereo in fact?
  88. Why does CFP output require much less bias than EF?
  89. No Input Select at Kenwood's Integrated Amp A-1001
  90. Quad 405 - DCD–Mod4 (Keith Snook)
  91. output transformer for multiple amps
  92. Connecting amplifier chasis to earth ground, but not amplifier ground
  93. QSC1700
  94. Pioneer SA-610 - bypass the Pre-amp stage?
  95. Upgrading Transistors?
  96. Toroid Field being picked up by input transformer. Way to block this?
  97. free bryston 4b resurrection
  98. 2SA798
  99. universal Jfet source follower
  100. Amp advice prior to purchase -
  101. Which amp shall I build?
  102. Audio transformer (LT700) behaviour [newb]
  103. homemade amplifier
  104. Sansui R-70 bias
  105. Kenwood KA5700
  106. A question about a Linar 10 amp
  107. OP Amp oscillator sine wave too sharp
  108. tectronic SA-535
  109. A dive into the past
  110. Hafler 9303 transformer
  111. Debug my hum
  112. Transistors
  113. Yamaha rx-v373 making me pull my hair out!
  114. Servicing an amp: fuses, regulators, emitter resistors
  115. Pro Amplifier hum
  116. Pioneer Power Amplifier GM-6300T, No Output
  117. Storage of a vintage receiver
  118. project idea. custom amp board in old receiver
  119. Strange problems with transistors
  120. Newbie working with a IRS2092
  121. Ampzilla 2000
  122. Simple repair for a subwoofer amplifier? (ASW3000)
  123. Speaker Impedance - Class A Current
  124. 2SK216/2SJ79 Spice models for Multisim?
  125. News. Three-band repeater with a crossover in the economy class A.
  126. Commercial Solid State Amps with jumper controlled Modes "without NFB" and "with NFB"
  127. Yamaha CA 510
  128. KSA-250 changing mains voltage
  129. "Vintage" Rotel RX-875 Troubleshooting
  130. Luxman L100 muting circuit
  131. Replacement remote for HK6350R
  132. SS amplifier kit equivalent to Dynaco ST70?
  133. Amplifier Problems
  134. Thermal switch?
  135. bad clipping
  136. OPA2604: Worthwhile using better regs than LM317/337?
  137. B&K cs-115 preamp help
  138. Kenwood Model Eleven GX Bulb Replacement
  139. Hiraga woodfront.
  140. Strap a Cap
  141. Which amplifier kit to build
  142. Encapsulated insulated hex freds
  143. need help finding a replacement for a JRC 074D quade fet op amp
  144. Yamaha RX-V390 - Circuit Protection
  145. arcam alpha 10
  146. autobias via temperature and LUT
  147. RAISERAMP - a special transformer based
  148. Speaker relays
  149. 4 stage amplifier instabilities
  150. 2SB654 = MJ2955? N0!
  151. Marantz pm-64 mk2 missing factory caps ?
  152. Marshall 8100 buzz
  153. gfa-555 ii transistors
  154. Esound integrated amp
  155. Marantz PM-66SE KI - bin or repair?
  156. Invention for bias stability
  157. Hybrid Repeater in economy class A.
  158. Backwards WILSON current mirror?
  159. separate psu chassis for SS amp ?
  160. Linn Intek noisy channel
  161. Phase problem/question
  162. Yamaha CA-610II
  163. Threshold Cas-2
  164. my new amp b.m.c cs2
  165. overdriven OP
  166. Luxman L-450 Transistor Getting Hot
  167. Marantz pm-64 mk2
  168. Transrotary Input Selector anti oxidation Yamaha AX, Pioneer A series type
  169. Amplifier Frequency Turnover. When does it apply?!
  170. Amplifier Frequency Turnover. When does it apply?!
  171. preamp low volume and humming - Krell KRC-2
  172. polyester caps for power supply Any good?
  173. Experiencing a mysterious hum in a Parasound HCA-2200 II.
  174. Bridge Amplifier
  175. Improved OP
  176. NAD 3020 preamp channel broken
  177. Powered Subwoofer won't turn on...Please help!
  178. EXCELINEAR MKII
  179. Is it possible to bridge two subwoofer plate amps between circuit boards??
  180. Behringer EP2500 Repair
  181. mosfet question.
  182. Leak Delta 70
  183. Slightly abnormal question about a shaker
  184. I am a newbie and need help on the value of the potentiometer
  185. My CFA project
  186. SIT Transistors for audio ?
  187. rf problem
  188. Building amp small series...
  189. A stupid question about using capacitors to clean pre amp rails
  190. Speakers pop sounds (spikes) when fridge kicks in,Arcam Alpha 3
  191. Need help figuring out/finding a rotary switch
  192. Opto-controlled bias
  193. At what point is slew rate performance is inaudible?
  194. K176 + J50 pairing, any problems?
  195. Single-ended amplifier with balanced input on the lamp GM70
  196. Historic amps documented
  197. Luxman L-435 idle current
  198. Jeff Rowland Model 7 III help
  199. QUAD 405 (mod): DC clamp and ground schema
  200. Harman Kardon HK630 Amplifier Service Manual
  201. quad 303
  202. Technics SU-V470 out of balance
  203. NAIM NAIT 5 Mod Help
  204. Yamaha A-1000 Oscillates
  205. Suggest me a low-power Class A amp
  206. Sudden P28 Schematics
  207. db technologies Opera 405D
  208. amp to replace Crimson 40 watt modules
  209. help with Onkyo 7.1 repair
  210. US / EU - power
  211. Sanken fake transistors
  212. Help with Rotel voltage reconfiguration
  213. Linearising OPS
  214. CRT noise in amp
  215. Why do some designed specify braided cables?
  216. Attenuator before or after graphic? DSE A2760
  217. GAS Son of Ampzilla channel cut out
  218. Solid state amp w. magnetics
  219. NAD 2100 - single channel Hum Problem
  220. Yamaha Limitter
  221. Cap vs DC servo in global NFB tests
  222. Replacement for D01 6A4 rectifier diodes on Rega Mira
  223. Son's Docking Station Project?
  224. Limiter section
  225. NAD T955 Output Devices
  226. Hiraga class a 30 w amplifier
  227. McCormack DNA-0.5 schematics
  228. Change/Bypass High Pass Filter?
  229. Minimum rec. resistor wattage?
  230. Looking for a good quality preamp
  231. Bias current through class AB output pair
  232. How Much Amplifier Power Do i need?
  233. Crate PA-4 Distortion
  234. 120hz spikes at amp output, crappy layout or something else?
  235. bias on sansui au555
  236. Nakamichi RE-10
  237. Making a standby - quick question
  238. Amplifier circuits using BJT advice
  239. 1000 Watt Hifonics Amp
  240. Dummy load for cooling fan?
  241. Help with McCormack DNA 0.5 protection circuit
  242. DIY Class A BJT Guitar Preamp problems
  243. Hybrid single-ended output stage with a balanced input on the lamp 6S33S
  244. zetka zpe 500
  245. Benefits of a regulated power supply?
  246. Yamaha 100-b212
  247. WILS-CFP PROJECT
  248. RA-1412 problems
  249. Straightforward Class A - modest power
  250. MOSFET power supply switch with Isense

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