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  1. Attention please oscillation
  2. Cyrus Amplifier 2
  3. Revisiting an old 1970's design. Was it inspired, or just an 'also ran'.
  4. Parasound a21 bias
  5. WEGA Model JPS 350V (JPS350V) Schematic wanted
  6. Challenge! Quick and dirty amp build - make a suggestion :)
  7. Preamp questions._
  8. The Fisher PA301 amp schematic?
  9. Sony STR-AV210 problem
  10. please help for proline 3000 amp
  11. Schematic for MAP-305II (Advance Acoustic)
  12. My Revox 720 just went Bang. Wrong fuse fitted: any idea please?
  13. zener amplifier
  14. Trying to repair a Samson sx1200 power amp
  15. Apex BA-2000 whats wrong with the schematic unable to simulate
  16. How to improve the distortion of this amp?
  17. Kenwood KA-7300 - temperature of power supply resistors
  18. Which one
  19. Anyone know why Profusions website is down?
  20. Pioneer SX-780 relay pin out
  21. Dynaco Stereo 80
  22. How turn a Class AB into H class
  23. Building a cheap 250W dummy load
  24. Hybrid quasi output LPT input
  25. Adcom GFA 555 Overheating with remote volume control?
  26. ALF 2 & 200 four-channel Lateral Mosfet amplifier
  27. Creek 4330 bias
  28. Rgate for 2sk1530/2sj201
  29. Rotel RA 1062 sound problem
  30. Hitachi SR-303L amp - slow warm up ??
  31. Twin Class AB Output Stages On One Front End
  32. Creating a variable wien bridge oscillator
  33. Denon AVC 1530
  34. Self's multiple balanced input CMRR - Any adjustment trimmpot?
  35. Pre amp Line driver for DJ mixer
  36. Rega Mira 3 voltage conversion
  37. Self's multiple balanced input CMRR - Any adjustment trimpot?
  38. DIY integrated amp to replace a Linn Classik
  39. Op Amps for Dummies please
  40. TGM 1i - an integrated hybrid amp inspired by Hugh Dean
  41. Technical Question - Yamaha CA-810 - everything is in mono
  42. Power Amp's NP capacitors and BP capacitors confuse ??
  43. Why my DX AMP oscillates?
  44. SONY STR-DA5200ES
  45. NAD 314 recapping
  46. Rotel RA1070 integrated amp, protection light.
  47. Op amp power decoupling... again...
  48. Cyrus 2 + PSX as a Subwoofer Amp
  49. Paralleling two power amps for extra power
  50. Technics SE-9060 improvement?
  51. diagnosing faulty transistors
  52. Kenwood KA7300 bias check points
  53. 2x 8 ohms split into 8 ohm channel on amp?
  54. 47 volts on output resistors?
  55. lm3886 sound
  56. Yamaha RX-V595 display panel stayed on 3~5 seconds then turned off
  57. Can power supply filter capacitors affect DC offset voltage?
  58. Tandem woofers, low combined DC resistance - effects on amplifier?
  59. Looking for a small signal NPN with no Quasi Saturation: MEASURED DATA
  60. Yamaha CR800 poor bass performance
  61. Replacement transistors
  62. Yamaha A520
  63. Waldhauer and frequency doublets
  64. Powering op amps from amplifier PSU
  65. NOS MOSFETs.
  66. LTSpice model for a 2V zener or less
  67. Film capacitors on AC
  68. Sansui G22000 with Updated Transistors/Low Power Output
  69. Proline 3000 Input Board
  70. New or amp or...?
  71. Bias adjustment pots - how to identify a bad one
  72. Marantz PM310 Upgrade Project
  73. Auxiliary transformer
  74. 150 watt mono Class A/B amplifier to drive 10" subwoofer
  75. Yamaha DSP-AX2 no signs of life.
  76. Lehmann Linear case drawings?
  77. Trim pot values
  78. Help With My Class AB Biasing, Unbalanced npn, pnp current
  79. Sub filter (Bass is course)
  80. Apex BA2000 protection circuit
  81. Class A vs class AB
  82. TA-4650: Bringing it back to life
  83. First shot at the "Blameless" amp topology
  84. HELP: Nakamichi CA-7 Volume Gear Parts
  85. Repair or replacement Technics SU-V8
  86. problem with my apex ax14
  87. Filter capacitors in Toshiba SC-335 power amp
  88. Total beginner question please - XLR ground loop
  89. Technics SU-V65A Troubleshooting please
  90. BUT30V NPN transsistors, amplifier material?
  91. My+Your Opinion And Experience On Matched Transistor and MOSFETS
  92. Any Experience With Holton Precision Amp Modules?
  93. Oscillations on blameless EF amp
  94. Allen 100 Watt amps
  95. Class A bias vs input signal
  96. Technics SA-X11WL distorted output
  97. Apex AX 20 amplifier problem....
  98. My CFP design, need your help!
  99. Audiolab 8000a spontaneously loud
  100. Sansui SE-7
  101. Sanyo STK 404-140
  102. Cyrus 1 Output Transistors
  103. The Fisher 202 - hum problem
  104. Removing Balance & Panorama from Crown IC 150a Preamp
  105. How Can I design a OCL AMP?
  106. What the Cap!!!!?
  107. Need help reviewing a design and layout.
  108. Beginner Solid State Amp (and speakers)
  109. Interference from output coils?
  110. Linear design sa-8200 rambler model stopped working
  111. Revox B-780 Help
  112. Quasi AB driver A
  113. PSU and amp in separate encolsures
  114. FED16BT replacment
  115. Audio Power supply
  116. *Wanted* Cerwin Vega CVA28 service manual
  117. Marantz 2225 Voltage Adjustment Issue
  118. New design 135W 8, 270W 4
  119. Turntable DC Supply 24V Very Complex/Strange
  120. PCB Sanyo
  121. Electrocompaniet AW-100 troubleshooting (right channel intermittent soft popping)
  122. Sony TAN-5550 ancient VFet amp, can I just turn it on?
  123. Blown amp section on NAD 7020 - What to check now?
  124. Really weird problem with volume control
  125. TO-3 power transistor orientation
  126. The Amplifier of 100 Transistors - Blameless using small signal devices as outputs!
  127. Marantz model 240 transistors
  128. Derating, am I missing something?
  129. Alpine 3539 faulty? (DC between RCA shield and supply ground)
  130. yamaha b1 where are 2sk77?
  131. STK42334MK5 diy amp Relay problem
  132. IC + FET redesign
  133. AudioSource AMP300 Troubleshooting
  134. Audio Research D-350 Power Meter Window
  135. Sony TA-F707es - Noise/hiss on on one channel
  136. Possible design issue in early MF B1 amp?
  137. Problem with preamp design
  138. DAC to PWR amp almost blown speakers
  139. Pioneer VSX-519V
  140. Lamp holders - can this type still be obtained?
  141. Does output volume differ btw diff. Opamps?
  142. astable
  143. Transistor replacement
  144. Seas Bragi kit amplifier
  145. Sony TA-N77ES Amplifier replacement parts 2SK244
  146. choices, choices !!!
  147. Need help to double check power supply.
  148. Variable start - up
  149. Phase Linear 400 & 4000 died while in storage
  150. Borbely MILLENNIUM-200
  151. Sausui 9090 Bias issue
  152. A Directory of Apex Audio Amplifiers
  153. Digital potentiometer and a 3 digit display
  154. Help Adding a Current Mirror to a Diff Pair Res Calc
  155. Electrocompaniet AW 250 DMB-R bias
  156. caps for quad 405 amp
  157. Technics SE-A5 Static/Sound in Right Channel
  158. cheapest per watt amplifier design
  159. Sound card FFT chart on a blameless amplifier
  160. Do smaller and paralleled caps sound better as output caps
  161. Mcintosh....ma1700
  162. LME49830
  163. K176 vs. K216
  164. Can I connect a seperate pre/pro to my Onkyo TX-sr805?
  165. antibump
  166. Regarding a Toshiba SY335 preamp
  167. 1/4in shaft and 6mm knob fit question?
  168. Sansui 5000A hum
  169. Two-Stage Push-Pull MOSFET Class-A Amp
  170. schematic for LM3886
  171. Sony STR-DH740 no sound output (possibly transformer)
  172. Capacitance 2x8000 = 10000+6800
  173. Variable Resistor V Semi-Fixed
  174. Volume-Potentiometer replacement rule?
  175. JVC rx8010vbk amp cuts right back off
  176. Superphon Revelation Basic
  177. More lfet questions
  178. Marantz pm7200 Breaking left channel
  179. Help identify name of this connector.
  180. Which way is best for power supply?
  181. Suggestions schematic for a new amp project
  182. NAD 3220PE Project
  183. Mark Levinson ML-9 amp help needed
  184. To buffer or not to buffer that is the question.
  185. Adcom GFA-555 mods
  186. allfet circlotron
  187. PNP LTP vs NPN LTP
  188. Troubleshooting amp repair
  189. Arcam CDS27 vs Marantz SA8005
  190. JBL MPX 600
  191. No DC Offset Adjustment Pots.
  192. Found this board dumped
  193. Class A BJT Powering on question. Will this send a jolt to my power amp?
  194. Need tips for recapping Sansui 9090
  195. Elusive noise on left channel
  196. OpAmpAmp for sub
  197. Monarch / Neckermann 1960s first generation solid state receiver recap
  198. Aragon 24k price
  199. Adcom GFA-555 II South Africa
  200. Marantz MA700 help
  201. Searching for service manual of Hafler 945
  202. Krell KSA-200B Bias
  203. Blast from the past - Kenwood KA-80
  204. Conrad Johnson PV10A--Classe CA 100
  205. A three transistor compound pair?
  206. Need some pointers with finishing touches on mosfet amp repair
  207. pioneer sx-6000 - need to know power supply board voltage values
  208. Transistor gain matching
  209. JFET differential pair trans. choice
  210. Can i replace 2SB755 / 2SD845 Toshibas for 2SA1494 / 2SC3858 Sanken ?
  211. Audio Nirvana,Nap 140 clones.
  212. Parasound A21 problem
  213. bridge rectifier question
  214. buzz from amp when connected to speaker
  215. Aragon 8008BB Voltage Conversion
  216. Sansui AU-6600 Bias
  217. Measured data on the J105 Nchannel JFET
  218. SE Amp operation question
  219. Aiwa C30 recap and OP amps
  220. Explanation of Class A
  221. Speaker protection 12v amp
  222. NAD C 165BEE
  223. Hafler 9505 hum/buzz noise
  224. LM334 makes quite a nice 5.5 mA current source, works down to 2.0-2.2 volts
  225. HELP! Higher Fidelity Industries HF-138 shematic
  226. no mention of active loads in Bob Cordell's book
  227. Servo controlled Op Amp board on Ebay
  228. Harman Kardon receiver
  229. McCormack DNA 0.5 Re Cap
  230. Sony TA-3600 BI-AMP Very Low Volume
  231. noisy marantz 1050
  232. Designing 200w Amplifier. Oscillations or something else? need help please.
  233. How do I make a speaker crossover to only hear range of human voice?
  234. Concept: Bridged amplifier with dc bias on the output
  235. Cambridge audio P50 bias adjustment
  236. Krell FPB catastrophic protection conditions?
  237. 50 solid ..years
  238. Yamaha M65 Bias adjustment
  239. Can I build an amp to do it all?
  240. Pioneer SX-1000TW Repair
  241. Sony 2.0 receiver "protect" mode test/repair
  242. question about the jlh amplifier and the capacitance multiplier power supply
  243. Maximum power output of a single pair of MT-200 vs TO-264
  244. Dissipante 5u UMS heatsinks
  245. Output stage power
  246. 4 channel amplifier build
  247. replacing a driver
  248. A rare find.
  249. Class A to class AB transition power rating
  250. Volume control for Naim 140 kit?

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