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  1. Marantz PM4400 power light on, no sound from speakers
  2. Large Bipolar Transistor in IGBT kind package
  3. GAS Ampzilla Power Meters
  4. Crimson Elektrik Power Amp Model?
  5. Constant Current Source (CCS) For Audio Applications
  6. YAMAHA CA 1000 Repair
  7. AD797 not sounding good
  8. Class A amp - coupled transformer at output
  9. Using LTSpice to check for SOA violations
  10. Amp Parts List Review
  11. Krell I-Bias ideas
  12. Anybody know about Class AH amplifier?
  13. KingStage RMX pro series look interesting... any takers yet?
  14. So Frustrating....
  15. Sherwood AM7040
  16. Onkyo A-8015
  17. How do we Choose Transistors
  18. diyAB Amp The "Honey Badger" on line grid board
  19. Pioneer SA-7500
  20. here is the complete PCB layout for BA2000
  21. Sons of VHex
  22. Need hlep on this amp contain some irfp240 irfp9240
  23. Behringer Ultra Bass BX4500H
  24. Schematic for Aragon Aurum?
  25. Looking for 20-30w amp with asymmetrical supply
  26. Active speaker volume ramp up
  27. clipping citation 22
  28. Unbalanced channals (volume levels) with two power amps.
  29. Class A amp-PCB assistance
  30. Quad 34/405 Dilemma.
  31. BIAS FOR LME49830
  32. Thick Brass for Amp Enclosure - Good Heat Dissipation Guaranteed?
  33. Bridge cambridge amplifier
  34. My first amp design
  35. Is 70mv Bias correct for a Sony TA-F444ESII?
  36. How many different SS power amp circuits in DIY?
  37. No sound coming out of my system
  38. JLH power amplifier
  39. Trying to fix my Behringer Ultrabass 3000
  40. Sansui AU-11000 Balance Pot....
  41. Marantz SR4002 - Schematic wanted
  42. Amplifier Hum out of the blue
  43. Decoupling Schemes and recommendations
  44. irfz44n for audio ?!
  45. Match complimentary pair in HK-730?
  46. recapping amp & preamp
  47. Sony STR-VX1L
  48. Sonic Difference between the Polk mm840 vs Focal P20F
  49. Faking a Loudness Tap
  50. Should I build this amp ?
  51. Luxman R-113 Scratchy sound for first min
  52. The Examplifier
  53. Inverted J-FET Circlophone Builders thread
  54. Some amps picking up noise from computer
  55. Jfet matching question
  56. JLH Class A Silicon Carbide edition
  57. Constant hiss on my amp, can I reduce it?
  58. Pioneer A88-x with Bad Channel
  59. Ips redesign
  60. LFet design
  61. Why are these opamps so expensive? (OPA2541 @ $250/ea)
  62. MF A1 2016 Rebuild!
  63. Shobud D15 steele guitar amp problem.
  64. adcom gfa 555 ii questions
  65. Crest Audio CPX 1500 Bias
  66. Adcom 555mkii that is confusing for me, to much positive?
  67. Attention please oscillation
  68. Cyrus Amplifier 2
  69. Revisiting an old 1970's design. Was it inspired, or just an 'also ran'.
  70. Parasound a21 bias
  71. WEGA Model JPS 350V (JPS350V) Schematic wanted
  72. Challenge! Quick and dirty amp build - make a suggestion :)
  73. Preamp questions._
  74. The Fisher PA301 amp schematic?
  75. Sony STR-AV210 problem
  76. please help for proline 3000 amp
  77. Schematic for MAP-305II (Advance Acoustic)
  78. My Revox 720 just went Bang. Wrong fuse fitted: any idea please?
  79. zener amplifier
  80. Trying to repair a Samson sx1200 power amp
  81. Apex BA-2000 whats wrong with the schematic unable to simulate
  82. How to improve the distortion of this amp?
  83. Kenwood KA-7300 - temperature of power supply resistors
  84. Which one
  85. Anyone know why Profusions website is down?
  86. Pioneer SX-780 relay pin out
  87. Dynaco Stereo 80
  88. How turn a Class AB into H class
  89. Building a cheap 250W dummy load
  90. Hybrid quasi output LPT input
  91. Adcom GFA 555 Overheating with remote volume control?
  92. ALF 2 & 200 four-channel Lateral Mosfet amplifier
  93. Creek 4330 bias
  94. Rgate for 2sk1530/2sj201
  95. Rotel RA 1062 sound problem
  96. Hitachi SR-303L amp - slow warm up ??
  97. Twin Class AB Output Stages On One Front End
  98. Creating a variable wien bridge oscillator
  99. Denon AVC 1530
  100. Self's multiple balanced input CMRR - Any adjustment trimmpot?
  101. Pre amp Line driver for DJ mixer
  102. Rega Mira 3 voltage conversion
  103. Self's multiple balanced input CMRR - Any adjustment trimpot?
  104. DIY integrated amp to replace a Linn Classik
  105. Op Amps for Dummies please
  106. TGM 1i - an integrated hybrid amp inspired by Hugh Dean
  107. Technical Question - Yamaha CA-810 - everything is in mono
  108. Power Amp's NP capacitors and BP capacitors confuse ??
  109. Why my DX AMP oscillates?
  110. SONY STR-DA5200ES
  111. NAD 314 recapping
  112. Rotel RA1070 integrated amp, protection light.
  113. Op amp power decoupling... again...
  114. Cyrus 2 + PSX as a Subwoofer Amp
  115. Paralleling two power amps for extra power
  116. Technics SE-9060 improvement?
  117. diagnosing faulty transistors
  118. Kenwood KA7300 bias check points
  119. 2x 8 ohms split into 8 ohm channel on amp?
  120. 47 volts on output resistors?
  121. lm3886 sound
  122. Yamaha RX-V595 display panel stayed on 3~5 seconds then turned off
  123. Can power supply filter capacitors affect DC offset voltage?
  124. Tandem woofers, low combined DC resistance - effects on amplifier?
  125. Looking for a small signal NPN with no Quasi Saturation: MEASURED DATA
  126. Yamaha CR800 poor bass performance
  127. Replacement transistors
  128. Yamaha A520
  129. Waldhauer and frequency doublets
  130. Powering op amps from amplifier PSU
  131. NOS MOSFETs.
  132. LTSpice model for a 2V zener or less
  133. Film capacitors on AC
  134. Sansui G22000 with Updated Transistors/Low Power Output
  135. Proline 3000 Input Board
  136. New or amp or...?
  137. Bias adjustment pots - how to identify a bad one
  138. Marantz PM310 Upgrade Project
  139. Auxiliary transformer
  140. 150 watt mono Class A/B amplifier to drive 10" subwoofer
  141. Yamaha DSP-AX2 no signs of life.
  142. Lehmann Linear case drawings?
  143. Trim pot values
  144. Help With My Class AB Biasing, Unbalanced npn, pnp current
  145. Sub filter (Bass is course)
  146. Apex BA2000 protection circuit
  147. Class A vs class AB
  148. TA-4650: Bringing it back to life
  149. First shot at the "Blameless" amp topology
  150. HELP: Nakamichi CA-7 Volume Gear Parts
  151. Repair or replacement Technics SU-V8
  152. problem with my apex ax14
  153. Filter capacitors in Toshiba SC-335 power amp
  154. Total beginner question please - XLR ground loop
  155. Technics SU-V65A Troubleshooting please
  156. BUT30V NPN transsistors, amplifier material?
  157. My+Your Opinion And Experience On Matched Transistor and MOSFETS
  158. Any Experience With Holton Precision Amp Modules?
  159. Oscillations on blameless EF amp
  160. Allen 100 Watt amps
  161. Class A bias vs input signal
  162. Technics SA-X11WL distorted output
  163. Apex AX 20 amplifier problem....
  164. My CFP design, need your help!
  165. Audiolab 8000a spontaneously loud
  166. Sansui SE-7
  167. Sanyo STK 404-140
  168. Cyrus 1 Output Transistors
  169. The Fisher 202 - hum problem
  170. Removing Balance & Panorama from Crown IC 150a Preamp
  171. How Can I design a OCL AMP?
  172. What the Cap!!!!?
  173. Need help reviewing a design and layout.
  174. Beginner Solid State Amp (and speakers)
  175. Interference from output coils?
  176. Linear design sa-8200 rambler model stopped working
  177. Revox B-780 Help
  178. Quasi AB driver A
  179. PSU and amp in separate encolsures
  180. FED16BT replacment
  181. Audio Power supply
  182. *Wanted* Cerwin Vega CVA28 service manual
  183. Marantz 2225 Voltage Adjustment Issue
  184. New design 135W 8, 270W 4
  185. Turntable DC Supply 24V Very Complex/Strange
  186. PCB Sanyo
  187. Electrocompaniet AW-100 troubleshooting (right channel intermittent soft popping)
  188. Sony TAN-5550 ancient VFet amp, can I just turn it on?
  189. Blown amp section on NAD 7020 - What to check now?
  190. Really weird problem with volume control
  191. TO-3 power transistor orientation
  192. The Amplifier of 100 Transistors - Blameless using small signal devices as outputs!
  193. Marantz model 240 transistors
  194. Derating, am I missing something?
  195. Alpine 3539 faulty? (DC between RCA shield and supply ground)
  196. yamaha b1 where are 2sk77?
  197. STK42334MK5 diy amp Relay problem
  198. IC + FET redesign
  199. AudioSource AMP300 Troubleshooting
  200. Audio Research D-350 Power Meter Window
  201. Sony TA-F707es - Noise/hiss on on one channel
  202. Possible design issue in early MF B1 amp?
  203. Problem with preamp design
  204. DAC to PWR amp almost blown speakers
  205. Pioneer VSX-519V
  206. Lamp holders - can this type still be obtained?
  207. Does output volume differ btw diff. Opamps?
  208. astable
  209. Transistor replacement
  210. Seas Bragi kit amplifier
  211. Sony TA-N77ES Amplifier replacement parts 2SK244
  212. choices, choices !!!
  213. Need help to double check power supply.
  214. Variable start - up
  215. Phase Linear 400 & 4000 died while in storage
  216. Borbely MILLENNIUM-200
  217. Sausui 9090 Bias issue
  218. A Directory of Apex Audio Amplifiers
  219. Digital potentiometer and a 3 digit display
  220. Help Adding a Current Mirror to a Diff Pair Res Calc
  221. Electrocompaniet AW 250 DMB-R bias
  222. caps for quad 405 amp
  223. Technics SE-A5 Static/Sound in Right Channel
  224. cheapest per watt amplifier design
  225. Sound card FFT chart on a blameless amplifier
  226. Do smaller and paralleled caps sound better as output caps
  227. Mcintosh....ma1700
  228. LME49830
  229. K176 vs. K216
  230. Can I connect a seperate pre/pro to my Onkyo TX-sr805?
  231. antibump
  232. Regarding a Toshiba SY335 preamp
  233. 1/4in shaft and 6mm knob fit question?
  234. Sansui 5000A hum
  235. Two-Stage Push-Pull MOSFET Class-A Amp
  236. schematic for LM3886
  237. Sony STR-DH740 no sound output (possibly transformer)
  238. Capacitance 2x8000 = 10000+6800
  239. Variable Resistor V Semi-Fixed
  240. Volume-Potentiometer replacement rule?
  241. JVC rx8010vbk amp cuts right back off
  242. Superphon Revelation Basic
  243. More lfet questions
  244. Marantz pm7200 Breaking left channel
  245. Help identify name of this connector.
  246. Which way is best for power supply?
  247. Suggestions schematic for a new amp project
  248. NAD 3220PE Project
  249. Mark Levinson ML-9 amp help needed
  250. To buffer or not to buffer that is the question.

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