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  1. Experiencing a mysterious hum in a Parasound HCA-2200 II.
  2. Bridge Amplifier
  3. Improved OP
  4. NAD 3020 preamp channel broken
  5. Powered Subwoofer won't turn on...Please help!
  6. EXCELINEAR MKII
  7. Is it possible to bridge two subwoofer plate amps between circuit boards??
  8. mosfet question.
  9. Leak Delta 70
  10. Slightly abnormal question about a shaker
  11. I am a newbie and need help on the value of the potentiometer
  12. My CFA project
  13. SIT Transistors for audio ?
  14. rf problem
  15. Building amp small series...
  16. A stupid question about using capacitors to clean pre amp rails
  17. Speakers pop sounds (spikes) when fridge kicks in,Arcam Alpha 3
  18. Need help figuring out/finding a rotary switch
  19. Opto-controlled bias
  20. At what point is slew rate performance is inaudible?
  21. K176 + J50 pairing, any problems?
  22. Single-ended amplifier with balanced input on the lamp GM70
  23. Historic amps documented
  24. Luxman L-435 idle current
  25. Jeff Rowland Model 7 III help
  26. QUAD 405 (mod): DC clamp and ground schema
  27. Harman Kardon HK630 Amplifier Service Manual
  28. quad 303
  29. Technics SU-V470 out of balance
  30. NAIM NAIT 5 Mod Help
  31. Yamaha A-1000 Oscillates
  32. Suggest me a low-power Class A amp
  33. Sudden P28 Schematics
  34. db technologies Opera 405D
  35. amp to replace Crimson 40 watt modules
  36. help with Onkyo 7.1 repair
  37. US / EU - power
  38. Sanken fake transistors
  39. Help with Rotel voltage reconfiguration
  40. Linearising OPS
  41. CRT noise in amp
  42. Why do some designed specify braided cables?
  43. Attenuator before or after graphic? DSE A2760
  44. GAS Son of Ampzilla channel cut out
  45. Solid state amp w. magnetics
  46. NAD 2100 - single channel Hum Problem
  47. Yamaha Limitter
  48. Cap vs DC servo in global NFB tests
  49. Replacement for D01 6A4 rectifier diodes on Rega Mira
  50. Son's Docking Station Project?
  51. Limiter section
  52. NAD T955 Output Devices
  53. Hiraga class a 30 w amplifier
  54. McCormack DNA-0.5 schematics
  55. Change/Bypass High Pass Filter?
  56. Minimum rec. resistor wattage?
  57. Looking for a good quality preamp
  58. Bias current through class AB output pair
  59. How Much Amplifier Power Do i need?
  60. Crate PA-4 Distortion
  61. 120hz spikes at amp output, crappy layout or something else?
  62. bias on sansui au555
  63. Nakamichi RE-10
  64. Making a standby - quick question
  65. Amplifier circuits using BJT advice
  66. Dummy load for cooling fan?
  67. Help with McCormack DNA 0.5 protection circuit
  68. Hybrid single-ended output stage with a balanced input on the lamp 6S33S
  69. zetka zpe 500
  70. Benefits of a regulated power supply?
  71. Yamaha 100-b212
  72. WILS-CFP PROJECT
  73. RA-1412 problems
  74. Straightforward Class A - modest power
  75. MOSFET power supply switch with Isense
  76. Monster Class A (Genesis OPS)
  77. Quilted 120 hybrid amplifier Class A LAMP 6N6P
  78. class AB theory question
  79. Trick to search headphone amps by HI PSRR please?
  80. small/excellent amp recommendation for highs on active system
  81. Carver M500-T Amp - Power up the first 30 to 40 seconds no sound.
  82. Crest Audio LA601 Repair Help
  83. Op-amp input, class AB output. Loud thump sound
  84. Output stage transistor type
  85. SAE 2400L Repair Help Please
  86. Single-cycle symmetric (N - P - N channel + P - N - P channel) repeater plated input
  87. Denon DRA-835R Volume
  88. Bigun's TGM8 with Single Supply
  89. amplifier with 2sk170 input stage
  90. Arcam Alpha 10 Intergrated Output Transistors Location??
  91. Swapping germanium for silicon transistors?
  92. Substitute Transistors
  93. Debunker Strong X4 - 500 WRMS Hi-Fi Amp
  94. pioneer sa 1010 burning resistor
  95. Bypassing an op-amp Low Pass Filter
  96. Speaker protection
  97. Bad channel on TDA7492 amp.What to repair?
  98. driver module
  99. Tiger Pro 1800M amp schematic
  100. Current drive for Loudspeakers
  101. Distorted lamps
  102. Sansui AU-919 filter cap replacement options
  103. TPA3116 amp 50+50+100 wiring?
  104. Replace Sanken SAP16 with STD03
  105. schematics of Krell MDA300
  106. Buttons not performing the corect functions.
  107. Pottencially dead Crest Audio Vs1500
  108. NAD3020, no c422&c423?!
  109. James Sugden site
  110. McIntosh MC250 Capacitor replacement
  111. Cyrus Power power amp resurrection
  112. De-rating heatsink when enclosed?
  113. How Much RMS is Ekho RX2000 Power Amplifier ?
  114. Defectice Output Power Devices at Integr. Amps with Tone Control inside the NFB Loop
  115. mic preamp for recording interface
  116. BK ST-140 vs Conrad Johnson SA 250 Sonographe
  117. Suggestions for a balanced input class A amplifier
  118. Simulation of thermal compensation
  119. Luxman mk 2 combo
  120. Low volume channel
  121. Infinity RS IIA
  122. upgrade my 125 W power amp.
  123. What causes this kind of PCB exposure error?
  124. Carver PM-2.0T (PT-1250)
  125. Quad 520f Noise Problem
  126. Simple amp for loudspeaker tests
  127. Levinson ML-2 or No.23.5
  128. Crescendo Millenium problems
  129. Fully Regulated first stages
  130. Problem with AMPEG amp
  131. Suitable chassis
  132. Why so complex?
  133. Matching/pairing MOSFETs
  134. chip amps vs discrete power amps... does it matter?
  135. LM4702/ SAP15 board help needed
  136. Meistersinger VFA-200, A beginner’s first try in LTSpice
  137. Looking for replacement Arcam 10 components
  138. MARANTZ SC-80 HELP!
  139. Problem with 1977 Technics sa-5270 receiver
  140. Cambridge Azur 640A v1
  141. Channel switching with balanced inputs
  142. Best 50W subwoofer amplifier project?
  143. Hartke HA 4000 schematic request
  144. Tandberg Sølvsuper 75 - 14 HELP!
  145. ecdesign FET CIRCLOTRON ever tested
  146. Lite Audio M12 Power amp
  147. DC voltage on Output Speaker Arcam amplifier problem
  148. AF 124 germanium transistor pinout?
  149. Lab Gruppen amps IPD1200 and IPD2400
  150. Honey Badger vs ???
  151. citation 21 preamp - no right channel sound
  152. What is the Ft of a compound transistor
  153. amp kits from ebay
  154. Harman Kardon 330B
  155. Sugden A 48 Mark III
  156. want to build an Amp
  157. tape out line level modification??
  158. Upping the Watts
  159. figuring out Vo and Io of this op amp
  160. Power Switch
  161. Cap Tolerance - Recapping Audio Gear
  162. Blown up Warwick xtreme 10.1 Bass Amp
  163. Primare 30.5 amp issue on power on
  164. Pioneer a400 volume control
  165. 3-way active x-over - physical setup?
  166. Ideas to what might cause almost full supply voltage DC offset?
  167. yamaha rx-v2095 wont power on
  168. gm doubling
  169. SAE A202 stand-by LED does not work
  170. ALL BD's (139/140) power amplifier
  171. creek 4330 115V - 230V conversion
  172. Technics SU V40 repair
  173. Yamaha AX-1070 vs SONY TA-F770ES
  174. belles 150a ref v2
  175. Technics SU-Z25
  176. Denon PRA-1500 input selector problem fixed
  177. PA protect-need help how add thermo protect with NTC
  178. Parasound 2125 2 channel power amp problem Update!
  179. How do I determine total op amp current?
  180. Flat screen tv
  181. Capacitor help - Quad 303
  182. two amp in hafler's sound system?
  183. Adcom GFA-555 II issue...
  184. Harman Kardon A-401 Treble Hissing Problem
  185. Something fancy!
  186. Adding Pre out Denon PMA-1080R
  187. ARCAM Bi-Amping tripping relay
  188. Speaker damping when amp biased off
  189. How to optimize this CFA?
  190. Nakamichi TA-2A Repair Advice
  191. SNR from noise density
  192. line level btwn PC headphone and integrated amp AUX input.
  193. Help connection for Phase Measurement
  194. custom meter face software for mac
  195. Sansui 5000A Buzzzzz
  196. Technics SA-410 Relay
  197. Discrete components based amp vs Chip amps, which is easier to achieve for n00bs ?
  198. Help for newbie with dead Nad 3130 please
  199. input capacitors, frequency response
  200. Amplifier kit recommendations.
  201. TO 3 failure on vibration
  202. amplifier input modification
  203. What's the magic of 2N5551 / 2N5401?
  204. Jim Roberge
  205. One channel periodically quieter until large signal, then it recovers...
  206. servo and distortion
  207. tda 2030 + power transistors
  208. Alesis RA150 burns power resistor
  209. electrostatic SHIELD
  210. Transistor
  211. Amp help Hitachi HMA-8300 Series E
  212. Can I make it better?
  213. Kenwood soverign vr-5700 expertise needed
  214. Crown DC300A Repair/Restore
  215. Selecting PSU caps
  216. Feedback, differential? the next advance.
  217. Naim Statement
  218. Regarding terminal blocks
  219. Looking for Cello Performance schematics
  220. Faulty Sansui AU101 speaker switch
  221. Do you like Gain-One Amplifier?
  222. Can't find a replacement LED for my Preamp: any ideas Please?
  223. Capacitor replacement - Sherwood
  224. Need schematic for 40W Amplifier with good sound quality that works on +-36V DC Max
  225. Quad 303 PSU caps mounting
  226. Input selector knob not working (Kenwood KR-5030)
  227. Sansui BA2000 Weak Signal Dropout
  228. Kenwood KM 105 does not click safety relay
  229. Which one of these amps should I purchase?
  230. amplifiacator 2 ways
  231. Alto Macro 2400 Amp
  232. Adcom GFA-5802 DC Offset and bias help needed
  233. XHS - Xtra High Speed Design
  234. NAD 1155 pre and 2200 power amp
  235. Quick UCD700HG question
  236. Stereo amp with 2 rca outputs?
  237. VU meter question
  238. MBR1045 Schottky Diode Help
  239. Focal Maestro Utopia , matching Amp , need your advice
  240. my diy arcam fmj 32 amp mod
  241. Please Help.
  242. Arcam Alpha 8 hum and other issues
  243. Replacement for PAC010A IC
  244. Help with Sansui AU-4400
  245. Onkyo DTR 5.6 problems...
  246. Pioneer VSX_D209 Power IC
  247. VSSA Through-Hole Version by Jason
  248. Weirdest faults.
  249. Transformer question for amp supply
  250. Need help about a double boot strap amp

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